WO2012116619A1

WO2012116619A1 - Method and corresponding system for remotely controlling wireless multimedia communication system

Info

Publication number: WO2012116619A1
Application number: PCT/CN2012/071671
Authority: WO
Inventors: 刘一宁
Original assignee: 深圳市朗科科技股份有限公司
Priority date: 2011-03-03
Filing date: 2012-02-27
Publication date: 2012-09-07
Also published as: CN102655501A; CN102655501B

Abstract

Disclosed is a method for remotely controlling a plurality of electrical devices in a wireless multimedia communication system, wherein the wireless multimedia communication system includes a remote control signal receiving unit. The method includes: 1) at least one of the plurality of electrical devices receives a remote control selection signal from a remote controller via the remote control signal receiving unit; 2) the at least one electrical device determines the selected electrical device according to the remote control selection signal and records address information about the selected electrical device; 3) the electrical device, recorded with address information about the selected electrical device, receives an operation control signal from the remote controller via the remote control signal receiving unit, and forwards the operation control signal sent by the remote controller to the selected electrical device according to the address information, so that the selected electrical device executes an operation corresponding to the operation control signal. A corresponding system is also disclosed.

Description

Method for remotely controlling wireless multimedia communication system and corresponding system

The present application relates to the field of wireless multimedia communications, and in particular, to a method for remotely controlling a plurality of electrical devices in a wireless multimedia communication system and a corresponding wireless multimedia communication system. Background technique

At present, the connection lines between televisions, DVD players, projectors, audio and other electrical equipment in the home theater system are often complicated and cumbersome, causing great inconvenience to consumers. Regarding the issue above,

Wireless HD Digital Technology Interface (WHDI; Wireless Home Digital Interface), Wireless HD (WiHD; Wireless HD), Digital Interactive Interface for Video & Audio (DiiVA; Digital HD Interactive Interface) and other wireless HD transmission technology standards have been released, and related manufacturers have also The launch of related products has solved the problem of wireless data transmission between home multimedia electrical devices.

In addition, most of the home multimedia electrical equipment is operated by a remote control, and each electrical device has an independent remote control. With the increase in the number of household multimedia electrical devices, more and more remote controls often make consumers feel very inconvenient. . In order to solve the problem of unified remote control of home multimedia electrical equipment, CEC (Consumer Electronics Control) standards organization has proposed the CEC standard, which can control different brands of multimedia electrical equipment with unified remote control. Many companies have published their own unified connection control standards such as DDC, VIERA Link, Anynet+, SIMPLINK, BRAVIA SYNC, Fami Link, etc. based on this standard. Although these unified control standards have different names, they are generally implemented through the CEC port of the HDMI interface to realize control command transmission between different multimedia electrical devices.

The above unified control standard solves the unified remote control problem of the multimedia system under the wired connection condition. However, if wireless high-definition transmission is used between multimedia electrical equipment, these unified control technologies will be rendered useless. Moreover, there is no technical solution for solving the unified remote control of the wireless multimedia system in the prior art. Summary of the invention

One embodiment of the present application discloses a plurality of pairs in a wireless multimedia communication system A method for remotely controlling an electrical device, wherein the wireless multimedia communication system includes a remote control signal receiving unit, and the method includes:

1) at least one of the plurality of electrical devices receives a remote control selection signal from the remote controller through the remote control signal receiving unit;

2) the at least one electrical device determines the selected electrical device based on the remote control selection signal and records address information of the selected electrical device;

3) an electrical device recording the address information of the selected electrical device receives an operation control signal from the remote controller through the remote control signal receiving unit, and an operation control signal sent by the remote controller according to the address information Forwarding to the selected electrical device such that the selected electrical device performs an operation corresponding to the operational control signal.

Another embodiment of the present application discloses a wireless multimedia communication system, including: a plurality of electrical devices;

a remote control signal receiving unit that receives a remote control signal from the remote controller;

Wherein at least one of the plurality of electrical devices receives the remote control selection signal through the remote control signal receiving unit, and determines the selected electrical device according to the remote control selection signal, and records the selected electrical device Address information of the device;

Wherein the address information of the selected electrical device is recorded, the electrical device receives an operation control signal from the remote controller through the remote control signal receiving unit, and forwards the operation control signal to the selected one according to the address information. Electrical Equipment.

The remote control signal receiving unit may be disposed in the electrical device in which the address information of the selected electrical device is recorded.

At least one of the plurality of electrical devices may be a media signal receiving device; and the media signal receiving device receives a remote control selection signal from the remote controller through the remote control signal receiving unit.

At least one of the plurality of electrical devices may be a playback device, and the media signal receiving device generates a selection menu of the plurality of electrical devices and transmits to the playback device to cause the at least one playback device to display The selection menu.

When the selected electrical device is a playback device, the media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the playback device, and records address information of the playback device, and The media signal receiving device passes the remote control letter The number receiving unit receives an operation control signal from the remote controller, and transmits the operation control signal and address information of the playback device to the playback device; the playback device performs a corresponding action according to the operation control signal.

When the selected electrical device is the media signal receiving device, the media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the media signal receiving device, and through the remote control The signal receiving unit receives an operation control signal from the remote controller, and performs a corresponding action according to the analyzed operation control signal.

At least one of the plurality of electrical devices may be a media signal transmitting device, and when the selected electrical device is the media signal transmitting device, the media signal receiving device parses the remote control selection signal to determine The selected electrical device is the media signal transmitting device, and records address information of the media signal transmitting device, and receives an operation control signal from the remote controller through the remote control signal receiving unit, and the operation control signal and the The address information of the media signal transmitting device is transmitted to the media signal transmitting device; and the media signal transmitting device performs a corresponding action according to the received operation control signal.

At least one of the plurality of electrical devices may be a media signal source device, and when the selected electrical device is the media signal source device, the media signal receiving device parses the remote control selection signal to determine The selected electrical device is the media signal source device, and records address information of the media signal source device, and receives an operation control signal from the remote controller through the remote control signal receiving unit, and the operation control signal is The address information of the media signal source device is forwarded to the at least one media signal source device by the media signal sending device; the signal source device performs a corresponding action according to the operation control signal. According to the method of remotely controlling a plurality of electrical devices in a wireless multimedia communication system and the corresponding wireless multimedia communication system disclosed in the present application, unified remote control of each electrical device in the wireless multimedia communication system can be realized. DRAWINGS

1 shows a wireless multimedia communication system 100 in accordance with an embodiment of the present application; FIG. 2 illustrates a wireless multimedia communication system in accordance with another embodiment of the present application.

200; 3 illustrates a method 1000 of remotely controlling a wireless multimedia communication system in accordance with an embodiment of the present application;

4 illustrates a method 2000 of remotely controlling a wireless multimedia communication system in accordance with another embodiment of the present application;

Figure 5 shows step S200 in Figure 4;

Figure 6 illustrates a method 3000 for remotely controlling a wireless multimedia communication system in accordance with another embodiment of the present application;

Figure 7 illustrates a method 4000 of remotely controlling a wireless multimedia communication system in accordance with another embodiment of the present application;

FIG. 8 illustrates a method 5000 of remotely controlling a wireless multimedia communication system in accordance with another embodiment of the present application. detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. FIG. 1 illustrates a wireless multimedia communication system 100 in accordance with an embodiment of the present application. As shown in FIG. 1, system 100 includes at least one remote control signal receiving unit 10, at least one media signal receiving device 20, at least one media signal transmitting device 30, at least one media signal source device 50, and at least one playback device 40.

In the following embodiment, although the remote control signal receiving unit 10 is connected to or disposed in the media signal receiving device 20, the present invention is not limited thereto. Alternatively, the remote control signal receiving unit 10 may be connected to or disposed in the media signal transmitting device 30, the playback device 40, or the media signal source device 50. Accordingly, the media signal transmitting device 30, the playback device 40, or the media signal source device 50 may also include an MCU (Master Controller) and perform corresponding actions performed by the media signal receiving device 20.

In the following description, although the connection between the media signal receiving device 20 and the playback device 40 and between the media signal transmitting device 50 and the media signal source device 30 draws an HDMI connection, the present application is not limited to the HDMI connection. Should be understood as any sound Both the video input/output bus can be used. The interfaces in the following embodiments are not limited to the CEC interface, and other interfaces such as DDC, VIERA Link, Anynet+, SIMPLINK, BRAVIA SYNC, and Fami Link may be used. The wireless transmission of the present application is not limited to a certain standard, and standards such as WHDI, WiHD, UWB, WUSB, and WIFI can also be used.

The plurality of electrical devices in the present application may be, for example, a television set, a DVD, a computer, a game machine, an audio, or the like.

As shown in Fig. 1, the media signal source device 50 can be connected to the media signal transmitting device 30 via, for example, an HDMI interface. The media signal transmitting device 30 processes the signal received from the media signal source device 50. For example, the media signal transmitting device 30 encodes, processes, digital-to-analog, mixes, and/or powers the received HDMI signal, and then transmits it through the antenna through the oscillator. The media signal receiving device 20 receives and processes the signal from the media signal transmitting device 30. The processed signal is transmitted to the playback device 40 through, for example, filtering, analog-to-digital conversion, signal processing, and the like, for example, by the playback device 40. The remote control signal receiving unit 10 receives the remote selection signal from the remote controller and transmits it to the media signal receiving device 20. The media signal receiving device 20 determines the selected electrical device according to the remote control selection signal, and records information such as address information, device type, and the like of the selected electrical device, and receives an operation control signal from the remote controller through the remote control signal receiving unit 10, and according to the previous The recorded address information forwards the operational control signals to the selected electrical device. FIG. 2 illustrates a wireless multimedia communication system 200 in accordance with yet another embodiment of the present application. The media signal transmitting device 30 may include a transmission processing module 31, a baseband processing module 32, an MCU 33, an HDMI module 34, and a CEC module 35 (not shown). The media signal receiving device 20 may include a reception processing module 21, a baseband processing module 22, an MCU 23, an HDMI module 24, a CEC module 25 (not shown), and a remote control signal receiving unit 10.

First, the remote control process for the playback device 40 in the wireless multimedia communication system 200 will be described. The remote control signal receiving unit 10 transmits the received remote control selection signal to the media signal receiving device 20. The MCU 23 of the media signal receiving device parses the remote control selection signal, determines that the selected electrical device is the playback device 40, and records the address information and device type of the playback device 40. The remote control signal receiving unit 10 transmits the received remote confirmation confirmation signal to the media signal Receive device 20. The MCU 23 also transmits an operation control signal to the CEC module 25. The CEC module 25 encodes the control confirmation signal in accordance with the HDMI standard and the CEC standard, and transmits the encoded operation control signal to the playback device 40 via the HDMI module 24. The playback device 40 performs the actions required by the operation control signal.

The control of the media signal receiving device 20 in the wireless multimedia communication system 200 will be described below. The remote control signal receiving unit 10 transmits the received remote control selection signal to the media signal receiving device 20. The MCU 23 of the media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the media signal receiving device 20. The remote control signal receiving unit 10 transmits the received remote confirmation confirmation signal to the media signal receiving device 20. The media signal receiving device 20 performs the action required by the remote control signal

The control of the media signal transmitting device 30 in the wireless multimedia communication system 200 will be described below. The remote control signal receiving unit 10 transmits the received remote control selection signal to the media signal receiving device 20. The MCU 23 of the media signal receiving device parses the remote control selection signal, determines that the selected electrical device is the media signal transmitting device 30, and records the address information and device type of the media signal transmitting device 30. The remote control signal receiving unit 10 transmits the received remote confirmation confirmation signal to the media signal receiving device 20. The MCU 23 also transmits an operation control signal to the CEC module 25. The CEC module 25 encapsulates the remote control signal processing into a CEC command format, such as forming a CEC Header Block, CEC Data Block. Then, it is sent to the media signal transmitting device 30 through the uplink communication channel of the media signal receiving device 20, and completes the CEC command interaction process with the media signal transmitting device 30 (this part can also implement the user remote command according to the user-defined format and communication protocol. Forwarding process). The CEC command sent by the media signal receiving device 20 of the media signal transmitting device 30, the MCU 33 of the media signal transmitting device 30 parses the CEC Header Block of the control command, obtains the logical address of the receiver included therein, and determines that the control command is sent to itself. control commands. The media signal transmitting device 30 then completes the user control process in accordance with the established requirements corresponding to the control commands. And the control state and result are returned to the media signal receiving device 20 through the downlink communication channel of the media signal transmitting device 30. The control state and result may be an audio and video result after synthesizing the audio and video signals, or may be a control data stream.

The control of the media signal source device 50 in the wireless multimedia communication system 200 is described below. The remote control signal receiving unit 10 transmits the received remote control selection signal to the media signal receiving device Prepare 20. The MCU 23 of the media signal receiving device parses the remote control selection signal, determines that the selected electrical device is the media signal source device 50, and records the address information and device type of the media signal source device 50. The remote control signal receiving unit 10 transmits the received remote confirmation confirmation signal to the media signal receiving device 20. The MCU 23 also transmits an operation control signal to the CEC module 25. The CEC module 25 encapsulates the remote control signal processing into a CEC command format, such as forming a CEC Header Block, CEC Data Block. Then, it is sent to the media signal transmitting device 30 through the uplink communication channel of the media signal receiving device 20, and completes the CEC command interaction process with the media signal transmitting device 30 (this part can also implement the user remote command according to the user-defined format and communication protocol. Forwarding process). The CEC command sent by the media signal receiving device 20 of the media signal transmitting device 30, the MCU 33 of the media signal transmitting device 30 parses the CEC Header Block of the control command, obtains the logical address of the receiver included therein, and determines that the control command is sent to the media signal. Control command of source device 50. The media signal transmitting device 30 then transmits the CEC control command to the media signal source device 50 via the HDMI module 34. The media signal source device 50 completes the action required by the operation control signal in accordance with the control command. The media signal source device 50 receives and executes the CEC command and returns the control status and result to the media signal transmitting device 30. The media signal transmitting device 30 returns the control state and result to the media signal receiving device 20 via the downlink communication channel. The control state and result may be an audio and video result after synthesizing the audio and video signals, or may be a control data stream. FIG. 3 illustrates a method 1000 of remotely controlling a wireless multimedia communication system in accordance with an embodiment of the present application. The wireless communication system 100 of FIG. 1 is further described below in conjunction with FIG. In step S110, at least one of the plurality of electrical devices receives the remote control selection signal from the remote controller through the remote control signal receiving unit 10; in step S120, the at least one electrical device determines the selected electrical device according to the remote control selection signal, And recording at least address information of the selected electrical device; in step S130, the at least one electrical device receives an operation control signal from the remote controller through the remote control signal receiving unit 10, and forwards the operation control signal to the selected electrical device according to the address information device.

The following description will be described by taking the remote control signal receiving unit 10 connected to the media signal receiving device 20 or set in the media signal receiving device 20.

In step S110, the media signal receiving device 20 passes the remote control signal receiving unit 10 Receive remote control selection signal from the remote control. In step S120, the media signal receiving device 20 determines the selected electrical device based on the remote control selection signal and records at least the address information of the selected electrical device. The media signal receiving device 20 then receives an operation control signal from the remote controller according to the remote control signal receiving unit 10 in step S130, and forwards the operation control signal to the selected electric device based on the recorded address information. 4 illustrates a method 2000 of remotely controlling a wireless multimedia communication system in accordance with another embodiment of the present application. The method 2000 is similar to the method 1000 described above, but first the step S200 of address initialization is performed. FIG. 5 shows step S200 in FIG. 4 in detail. The wireless communication system 200 of FIG. 2 is further described below in conjunction with FIG.

First, the initialization process of the physical address is performed. As shown in Fig. 5, in step S201, the physical signal receiving device 20 is assigned a physical address. Usually, the playback device 40 (e.g., a television, etc.) has only a SINK port and no SOURCE port in the standard such as HDMI, and belongs to the root node module, so the physical address of the playback device 40 is usually 0.0.0.0. When the playback device 40 detects the media signal receiving device 20, the media signal receiving device 20 is assigned a physical address in the EDID data, for example, 1.0.0.0.

Then, in step S202, the physical signal transmitting device 30 is assigned a physical address. For example, when the media signal receiving device 20 detects the signal of the media signal transmitting device 30, the media signal transmitting device 30 connected to the media source device 30 is assigned a physical address in the EDID data. For example, the media signal transmitting device 20 connected to the DVD is assigned a physical address 1.1.0.0, and a physical address can also be assigned to the third media signal transmitting device connected to the gaming machine, for example, 1.2.0.0, which is a fourth medium connected to the computer. The signaling device assigns a physical address, such as 1.3.0.0, and so on. The media signal transmitting device 30 can obtain the physical address of itself by reading the EDID data of the media signal receiving device 20. The transmission of the above data can be performed by the uplink and downlink wireless communication links of the media signal transmitting device 30 and the media signal receiving device 20.

Then, in step S203, the media signal source device 50 is assigned a physical address. For example, the media signal transmitting device 30 assigns a physical address to the connected media signal source device 50 in the EDID data, and the media signal source device 50 reads the EDID data of the connected media signal transmitting device 30 to acquire its own physical address. For example, the DVD address is 1.1.1.0, the game machine ground The address is 1.2.1.0, the computer machine address is 1.3.1.0, the address expansion mode can be expanded according to the tree structure of the HDMI protocol, and so on, until all the electrical devices of the system get their respective physical addresses. After the physical address assignment is completed, the initialization process of the logical address is performed. Usually the playback device 40, such as a TV, has only a SINK port and no SOURCE port, so its own logical address is preset to zero. As shown in FIG. 5, in step S204, after the media signal receiving device 20 is connected to the playback device 40, the media signal receiving device 20 assigns itself a preset logical address, for example 1, and broadcasts its own logical address in the system. . For example, this address is broadcast via the Polling Message in the HDMI protocol. Since the media signal receiving device 20 can also use a non-HDMI cable connection with other media signal transmitting devices 30, the media signal receiving device 20 transmits the broadcast information to the media signal transmitting device 30 through the uplink data link. The media signal transmitting device 30 processes the broadcast message and further transmits it to the media signal source device 50 connected thereto.

It is judged in step S2041 whether or not the logical address 1 has been occupied. If the logical address 1 is occupied by other electrical devices, such as the media signal transmitting device 30 and the media signal source device 50, the electrical device occupying the logical address will send an occupancy confirmation message to answer the broadcast message. For example, a device connected to the non-HDMI data line and occupying the logical address may send an occupation confirmation message through the downlink of the media signal transmitting device 30, and the media signal transmitting device 30 and the media signal receiving device 20 may press WHDI or a customized one. The data communication protocol performs message forwarding. After receiving the occupation confirmation message, the media signal receiving device 20 resets the logical address, for example, sets the logical address to 2, and broadcasts it again.

In step S205, when it is confirmed that none of the other electrical devices occupy the logical address, the media signal receiving device 20 occupies the logical address and broadcasts again. For example, the Report Physical Address message broadcast is performed through the HDMI bus and the uplink, and the message includes the physical address and logical address of the media signal receiving device 20, and the media signal receiving device 20 has declared that the physical address and the logical address have been occupied. Other electrical equipment can repeat the above process until all electrical equipment in the entire system has its own physical address and logical address. Each electrical device in the wireless multimedia communication system 200 performs unified remote control.

In the following examples, it is assumed that: the remote control signal receiving unit 10 is connected to or disposed in the media signal receiving device 20; and, the wireless multimedia communication system Each of the devices in 200 has undergone the address initialization step, and thus the media signal receiving device 20 has acquired information such as address information and device type of all devices in the wireless multimedia communication system 200.

FIG. 6 illustrates a method 3000 of remotely controlling a wireless multimedia communication system in accordance with one embodiment of the present application.

As shown in FIG. 6, in step S300, the media signal receiving device 20 can automatically generate an electrical device selection menu and send it to the playback device 40 for display. For example, the media signal receiving device 20 generates an HDMI signal through the HDMI module 24 and transmits it to the playback device 40 through the HDMI interface, and displays the generated selection menu on the playback device 40.

In step S310, the media signal receiving device 20 receives the remote control selection signal sent from the remote controller through the remote control signal receiving unit 10. In step S320, the media signal receiving device 20 determines the selected electrical device based on the remote control selection signal and records at least the address information of the selected electrical device. For example, when the user presses a button on the remote controller with reference to the selection menu displayed on the playback device 40, the remote control signal receiving unit 10 receives the remote control selection information from the remote controller and transmits it to the media signal receiving device 20 connected thereto. The MCU 23 of the media signal receiving device 20 decodes the remote control selection signal to obtain a key code, and changes the display menu in accordance with a predefined action of the key event. For example, the up, down, left and right keys modify the current selection cursor area of the display menu. The media signal receiving device 20 also generates an HDMI signal through the HDMI module 24, and transmits the HDMI signal to the playback device 40 through the HDMI interface for display on the playback device 40. In this way, the user can perceive the display effect of the control. The MCU 23 of the media signal receiving device 20 records information such as the type, address, and the like of the electric device selected by the current user.

In step S330, the media signal receiving device 20 receives an operation control signal from the remote controller through the remote control signal receiving unit 10, and forwards the operation control signal to the selected electric device based on the previously recorded address information. For example, when the user presses the confirmation button of the remote controller, the media signal receiving device 20 receives the remote control confirmation information via the remote control signal receiving unit 10. The MCU 23 decodes the operation control signal, and displays a sub menu of the selected electrical device according to the information about the currently selected electrical device. For example, when the selected electrical device is the media signal transmitting device 30, the media signal transmitting device 30 is displayed. Control submenus, such as parameter settings, power on, standby, etc. If the selected electrical device is an HDMI media source Device 50, then playback device 40 can directly play the multimedia content of the source.

In an embodiment of the present application, the media signal receiving device 20 receives the remote control information via the remote control signal receiving unit 10 when the user presses the remote control button again during the multimedia signal playing. And the media signal receiving device 20 can directly select the appropriate link via the recorded currently controlled electrical device type and address information, CEC encode the remote control information, and send it to the controlled device via a wired or wireless link. The controlled device performs the remote control process according to the button command to perform the corresponding action. If a menu, a text, an icon, or a picture is displayed on the playback device 40 to prompt the user to operate, the media signal receiving device 20 may transparently or non-transparently display the information to be displayed with the currently played multimedia information, and generate an HDMI through the HDMI encoding unit. The signal is transmitted to the playback device 40 through the HDMI interface for display on the playback device 40. In another embodiment of the present application, a plurality (e.g., 16) of device selection buttons may be provided on the remote control, each button corresponding to a logical address of an electrical device within the wireless multimedia communication system 200. For example, in order to facilitate the user to understand the correspondence between the physical logical address and each electrical device, the display button of the electrical device address information can be set on the remote controller. Or as shown in FIG. 7 (FIG. 7 illustrates a method 4000 for remotely controlling a wireless multimedia communication system according to another embodiment of the present application), in step S400, the media signal receiving device 20 may generate a physical logical address and each electrical device. The display interface of the information is sent to the playback device 40 for display. For example, when the user presses the button, the media signal receiving device 20 receives the remote control selection information via the remote control signal receiving unit 10. The MCU 23 of the media signal receiving device 20 decodes the remote control selection information to obtain an instruction to display the correspondence between the physical logical address and the electrical device. The MCU 23 of the media signal receiving device 20 generates a display interface of the physical logical address and the device information, generates an HDMI signal through the HDMI module 24, and transmits the HDMI signal to the playback device 40 through the HDMI interface to display the display interface of the physical logical address and the device information. On device 40. In this way, the user can understand the correspondence between the physical logical address and the electrical device.

In step S410, the media signal receiving device 20 receives the remote control selection signal through the remote control signal receiving unit 10. In step S420, the selected electrical device is determined based on the remote control selection signal, and at least the address information of the selected electrical device is recorded. For example, the user needs When controlling an electrical device in the system, the device selection button of the unified remote controller may be first pressed, and the media signal receiving device 20 receives the remote control selection information via the remote control signal receiving unit 10. The MCU 23 of the media signal receiving device 20 decodes the remote control selection signal, determines the physical logical address of the selected electrical device according to the decoding result, and records related information of the selected electrical device, such as a physical address, a logical address, and a device type. .

In step S430, the media signal receiving device 20 receives an operation control signal from the remote controller through the remote control signal receiving unit 10, and forwards the operation control signal to the selected electric device based on the previously recorded address information. For example, when the user presses the other function control button of the unified remote controller, the media signal receiving device 20 receives the operation control signal through the remote control signal receiving unit 10. The MCU 23 can directly select the appropriate link via the recorded type and address information of the selected electrical device, CEC encode the remote control information, and transmit to the selected electrical device via a wired or wireless link. The controlled device performs the remote control process by performing corresponding actions according to the key command. If a menu, a text, an icon, or a picture is displayed on the playback device 40 to prompt the user to operate, the media signal receiving device 20 may transparently or non-transparently overlay the information to be displayed with the currently played multimedia information, and generate an HDMI signal through the HDMI module 24. , transmitted to the playback device 40 through the HDMI interface.

In an embodiment of the present application, when the user needs to switch the currently controlled electrical device during operation, the device selection button of the remote controller must be pressed, and the media signal receiving device 20 receives the remote control selection signal via the remote control signal receiving unit 10, and The decoding process is performed by its MCU 23. The MCU 23 of the media signal receiving device 20 determines the physical logical address of the device to be operated based on the result of the key decoding, and records related information of the currently selected electrical device such as a physical address, a logical address, and a device type. In another embodiment of the present application, the remote controller may set a plurality of device control button zones, for example, separate remote controls may be provided for the playback device 40, the media signal source device 50, the media signal receiving device 20, and the media signal transmitting device 30, respectively. Button control area, each button control area has its own control button, as above and below, fast forward and rewind, switch machine, volume addition and subtraction. If the user needs to control any one of the devices, he only needs to operate in the button area of the corresponding device.

When the media signal receiving device 20 receives the remote control information via the remote control signal receiving unit 10 The MCU 23 of the media signal receiving device 20 searches for the physical address, logical address, and device information of the electrical device that the user wants to operate according to the key code, selects an appropriate link, and performs CEC encoding on the remote control information, and then sends the information via the wired or wireless link. To the device being controlled. The controlled device performs the corresponding action according to the button command.

When there are multiple media signal source devices 50, if the user wants to change the currently controlled media signal source device 50 or the user has not selected the media signal source device 50, the main controller of the media signal receiving device 20 generates the media signal source device 50. Selection menu. As shown in FIG. 8 (FIG. 8 illustrates a method 5000 for remotely controlling a wireless multimedia communication system according to another embodiment of the present application), in step S500, a main controller of the media signal receiving device 20 generates a media signal source device 50. The selection menu is generated, and an HDMI signal is generated by the HDMI module 24, and transmitted to the playback device 40 through the HDMI interface for display on the playback device 40.

In step S510, the media signal receiving device 20 receives the remote control selection signal from the remote controller via the connected remote control signal receiving unit 10. In step S520, the media signal receiving device 20 determines the selected electrical device based on the remote control selection signal and records at least the address information of the selected electrical device. For example, the user presses the media signal receiving device 20 area button on the remote controller, and the MCU 23 of the media signal receiving device 20 receives the remote control selection signal via the remote control signal receiving unit 10, and decodes it to obtain the button code, and then according to the button event. Predefined actions make changes to the display menu. For example, the up, down, left and right keys modify the current selection cursor area of the display menu. The media signal receiving device 20 also generates an HDMI signal through the HDMI module 24, and transmits it to the playback device 40 through the HDMI interface for display on the playback device 40. In this way, the user can perceive the display effect brought by the remote button control. The MCU 23 of the media signal receiving device 20 records information such as the type, address, and the like of the device selected by the current user.

In step S530, the media signal receiving device 20 receives an operation control signal from the remote controller through the remote control signal receiving unit 10, and forwards the operation control signal to the selected electrical device based on the previously recorded address information. For example, after the user selects the HDMI media source device, the user presses the media signal receiving device 20 area confirmation button of the unified remote controller, and the media signal receiving device 20 receives the operation control signal via the remote control signal receiving unit 10, and performs decoding processing by the MCU 23. . The MCU 23 directly plays the multimedia content of the media signal source device 50 according to the information of the selected electrical device, and records the class of the current media signal source device 50. Information such as type, address, etc., and the physical address and logical address of the media signal transmitting device 30 to which the media signal source device 50 is currently connected can be derived from the encoding of the physical address. The media signal receiving device 20 can further obtain related information of the media signal transmitting device 10. For example, the physical address of the media signal source device 50 is 1.1.1.0, and the physical address of the media signal transmitting device 30 connected thereto is 1.1.0.0 according to the HDMI physical address encoding rule.

Skilled artisans will appreciate that the above-described embodiments are merely illustrative and not limiting. Any modifications, equivalents, etc. made within the scope of the teachings and claims of the present application are intended to be included within the scope of the claims.

Claims

Rights request:

A method of remotely controlling a plurality of electrical devices in a wireless multimedia communication system, wherein the wireless multimedia communication system includes a remote control signal receiving unit, the method comprising:

The method according to claim 1, wherein the remote control signal receiving unit is provided to the electrical device in which the address information of the selected electrical device is recorded.

3. The method of claim 2, wherein at least one of the plurality of electrical devices is a media signal receiving device, and wherein the step 1) comprises:

The media signal receiving device receives the remote control selection signal from the remote controller through the remote control signal receiving unit.

4. The method of claim 3, wherein at least one of the plurality of electrical devices is a playback device, and before the step 1), further comprising:

The media signal receiving device generates a selection menu of the plurality of electrical devices and transmits the selection menu to the playback device to cause the playback device to display the selection menu.

5. The method of claim 3, wherein when the selected electrical device is a playback device, the step 2) comprises:

The media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the playback device, and records address information of the playback device; The step 3) includes:

Receiving, by the remote control signal receiving unit, an operation control signal from the remote controller, and transmitting the operation control signal and address information of the playback device to the playback device, so that the playback device is configured according to the playback device The operation control signal performs a corresponding action.

6. The method according to claim 3, wherein when the selected electrical device is the media signal receiving device, the step 2) comprises:

Parsing the remote control selection signal of the media signal receiving device to determine that the selected electrical device is the media signal receiving device, and recording address information of the media signal receiving device;

The step 3) includes:

The media signal receiving device receives an operation control signal from the remote controller through the remote control signal receiving unit, and performs a corresponding action according to the parsed operation control signal.

The method of claim 3, wherein at least one of the plurality of electrical devices is a media signal transmitting device, and when the selected electrical device is a media signal transmitting device, the step 2) comprises:

The media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the media signal transmitting device, and records address information of the media signal transmitting device;

The step 3) includes:

The media signal receiving device receives an operation control signal from the remote controller through the remote control signal receiving unit, and transmits the operation control signal and address information of the media signal transmitting device to the media signal transmitting device, so that the The media signal transmitting device performs a corresponding action according to the received operation control signal.

8. The method of claim 3, at least one of the plurality of electrical devices being a media signal source device, and when the selected electrical device is the media signal source device, the step 2 ) includes: The media signal receiving device parses the remote control selection signal to determine that the selected electrical device is the media signal source device, and records address information of the media signal source device;

The step 3) includes:

The media signal receiving device receives an operation control signal from the remote controller through the remote control signal receiving unit, and forwards the operation control signal and the address information of the media signal source device to the media signal through the media signal sending device. And a source device, such that the signal source device performs a corresponding action according to the operation control signal.

9. A wireless multimedia communication system, including

Multiple electrical equipment;

The wireless multimedia communication system according to claim 9, wherein the remote control signal receiving unit is provided to the electric device in which the address information of the selected electric device is recorded.