KR20050013417A - A portable computer adopting wireless display device - Google Patents

Abstract

A portable information processing apparatus employing a wireless display device is disclosed. The portable information processing apparatus according to the present invention transmits a data request signal to a main body through a wireless communication module in response to signals from a mobile main body and an input unit, a display unit, a wireless communication module, and an input unit capable of wireless communication with an external communication device. And a control unit for displaying and processing data information received from the main body in response to the data request signal. As a result, the mobility of the wireless display device can be improved by adopting the wireless display device to the portable information processing device.

Description

A portable computer adopting wireless display device {A portable computer adopting wireless display device}

The present invention relates to a portable information processing apparatus employing a wireless display device. More particularly, the present invention relates to a wireless display device which can improve the mobility of a wireless display device by applying a wireless display device having a wireless communication function to a portable information processing device. A portable information processing apparatus employing the apparatus.

Due to the development of wireless communication technology, the network environment by wireless is becoming popular around life. Recently, a smart display device, which is a display device that is portable and usable in a wireless network environment, has been developed.

Smart Display is a home wireless terminal, which uses a wireless LAN (eg, IEEE 802.11b) module to use a personal computer (PC) as a server. That is, the smart display is a product that allows a user to easily carry and use the resources of the PC within a radius (for example, 30 meters) where a host PC serving as a server in an enterprise or home is installed. Accordingly, the user can search for files using the wireless display device within the wireless communication range of the PC, access the Internet, search the web, search e-mail, and listen to music.

1 is a schematic conceptual diagram of a desktop information processing apparatus employing a wireless display device.

Referring to FIG. 1, a desktop information processing apparatus includes a docking station 30 for docking a host PC 10, a wireless display device 20, and a host PC 10 and a wireless display device 20. It is provided. The wireless display device 20 is electrically docked and undocked with the host PC 10 through the docking station 30, and the docking station 30 is connected to the host PC through a wired communication channel 40. have.

The wireless display device 20 operates in two modes according to the docking / undocking state with the host PC 10 through the docking station 30. When the wireless display device 20 is docked with the host PC 10 through the docking station 30, the wireless display device 20 operates in a general monitor mode. In this case, the wireless display device 20 performs only a display function of displaying on the screen display information processed by the host PC 10.

In contrast, the wireless display device 20 operates in a wireless monitor mode in which the wireless display device 20 performs wireless communication with the host PC 10 through the wireless communication module in a state in which the wireless display device 20 is undocked from the docking station 30. When operating in the wireless monitor mode, the wireless display device 20 may perform various tasks through communication with the host PC 10 within the wireless communication range of the host PC 10.

Since the above-described wireless display device 20 should be based on portability, information storage, memory, CPU power supply, application software, etc. use resources of the host PC 10 serving as a server. In order for the wireless display device 20 to perform wireless communication with the host PC 10, the wireless display device 20 must be located within a communication range of the host PC 10. However, the desktop type information processing apparatus has a large volume and a large number of connecting cables, which are constrained by the installation site. Usually, since the desktop type information processing device is supplied with power through a wire and has a wired LAN module for providing an Internet function, even when the wireless display device 20 is used in a wireless monitor mode, communication with the host PC 10 is performed. The range limits the mobility of the wireless display device 20.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a portable information processing apparatus employing a wireless display device to improve the mobility of the wireless display device.

1 is a schematic conceptual diagram of a desktop type information processing apparatus employing a wireless display device;

2 and 3 are diagrams for explaining an operation mode of a portable information processing apparatus employing a wireless display device according to a preferred embodiment of the present invention, and

4 is a block diagram schematically illustrating the wireless display device shown in FIGS. 2 and 3.

Explanation of symbols on the main parts of the drawings

100: wireless display device 105: wireless communication module

110: data codec 115: power supply

120: key input unit 125: key input interface

130: display panel 135: scaler

140: LVDS interface 145: memory unit

150: audio codec 155: external input interface

160: docking unit 165: switching unit

170: auxiliary processing unit 180: central processing unit

200: main body

In order to solve the above technical problem, the portable information processing apparatus according to the present invention includes a mobile main body capable of wirelessly communicating with an external communication device and an input unit, a display unit, a wireless communication module, and a signal applied from the input unit. And a control unit which transmits a data request signal to the main body through a communication module and displays the data information received from the main body on the display unit in response to the data request signal.

Preferably, the input unit includes at least one of a key input unit provided with a plurality of operation keys, a key input interface provided to connect an external key input device including a keyboard and a mouse, and a touch panel.

The wireless display device performs wired or wireless communication with the main body according to whether the main body is connected to the main body, and performs the wired communication with the main body when connected to the main body, and the main body and the wireless when separated from the main body. Perform communication.

The wireless display apparatus may further include a docking unit connected to the main body, wherein the control unit performs a wired monitor mode and the wireless communication with the main body through the docking unit according to whether the main body is connected to the main body. Controls to operate in any one of the wireless monitor mode for performing wireless communication with the main body through a communication module.

Preferably, the controller transmits the data request signal to the main body through the docking unit when operated in the wired monitor mode, and transmits the data request signal through the wireless communication module when operated in the wireless monitor mode. Control to send to.

The main body is formed at one end with a shaft support for docking the wireless display device, the docking portion is characterized in that the rotating shaft coupled to the shaft support formed on the main body.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 and 3 are views for explaining an operation mode of a portable information processing apparatus having a wireless display device according to a preferred embodiment of the present invention, Figure 4 is a wireless display device shown in Figures 2 and 3 It is a block diagram schematically showing.

2 and 3, the portable information processing apparatus according to the present invention is detachable from a main body 200 and a main body 200 having a wireless module for performing wireless communication with an external communication device. It consists of a wireless display device 100 having a communication function.

A shaft support part 310 is formed in the main body part 200, and a rotational shaft 300 coupled to the shaft support part 310 formed in the main body part 200 is formed in the wireless display device 100. The wireless display device 100 is mounted / removed to the shaft support part 310 formed in the main body part 200 through the rotation shaft 300.

In addition, the wireless display device 100 according to the present invention is operated in a wired monitor mode or a wireless monitor mode according to the docking structure with the main body 200. The wireless display device 100 is docked by the rotation shaft 300 is coupled to the shaft support portion 310 formed in the main body 200. As shown in FIG. 2, when the wireless display apparatus 100 is docked to the main body 200 of the portable information processing apparatus, the wireless display apparatus 100 displays the display information processed by the main body 200. Display operates in normal wired monitor mode.

On the contrary, as shown in FIG. 3, when the wireless display apparatus 100 is undocked from the main body 200, the wireless display apparatus 100 uses a wireless communication module (eg, IEEE 802.11b). It operates in a wireless monitor mode for performing wireless communication with the main body 200 through.

On the other hand, since the wireless display device 100 according to the present invention should be based on portability, a memory, a CPU power supply device, and an application program use those of the main body 200 serving as a server. Therefore, when a function other than the function that can be processed by the wireless display apparatus 100 is selected when operating in the wireless monitor mode, the wireless display apparatus 100 requests the necessary data to the main body 200 through the built-in wireless communication module. do.

Referring to FIG. 4, the internal structure of the wireless display device 100 shown in FIGS. 2 and 3 is as follows.

The wireless display device 100 includes a wireless communication module 105, a data codec 110, a power supply unit 115, a key input unit 120, a key input interface 125, a display panel 130, and a memory unit 145. ), An audio codec 150, an external input interface 155, a docking unit 160, a switching unit 165, an auxiliary processing unit 170, and a central processing unit 180.

The wireless communication module 105 provides a communication interface between the CPU 180 and the main body 200. For example, the wireless communication module 105 may be a wireless module such as a wireless LAN card incorporating the IEEE 802.11b wireless LAN protocol.

The data codec 110 decodes a data packet compressed and transmitted from the main body 200 through a wireless communication module 105 in a predetermined compression format method under the control of the central processing unit 180, or the wireless communication module ( Through the 105, the data packet to be transmitted to the main body 200 is encoded in a predetermined compression format.

The power supply unit 115 supplies power to the wireless display device 100. The power supply unit 115 according to the present invention may be applied to a battery for supplying power by charging, alternatively, may include a power connection line (DC_IN) to receive the power supplied from the outside.

The key input unit 120 is provided on the main body of the wireless display device 100 and includes a plurality of operation keys (eg, a power key and a volume up / down key) for selecting and operating a function supported by the wireless display device 100. Down key). The key input unit 120 outputs a key input signal according to the key operation to the auxiliary processor 170.

The key input interface 125 may be connected to an external key input device such as a keyboard or a mouse, and output a key input signal input through the external key input device to the auxiliary processor 170. The key input interface 125 may be implemented as a PS2 interface or a USB interface to which a PS2 external input device or a USB external key input device may be connected.

When the wireless display device 100 is separated from the main body 200 and operated in the wireless monitor mode, the wireless display device 100 receives data through an external key input device connected through the key input interface 125. .

The display panel 130 includes a display unit that displays display information and a touch panel that generates a predetermined potential in response to a touch input, and functions as an input unit and an output unit. Here, the TFT-LCD (Thin Film Transistor-Liquid Crystal Display) may be applied as the display unit. The information displayed through the display panel 130 of the wireless display device 100 is displayed based on the windows operating system.

The scaler 135 scales the image signal received through the wireless communication module 105 to fit the screen size of the display panel 130 under the control of the central processing unit 180.

The Low Voltage Differential Signaling (LVDS) interface 140 may convert a parallel type TTL / CMOS voltage (eg, 3.3V) output from the scaler 135 to a low voltage (eg, 0.3V) voltage. The data is converted into serial data and transmitted to the display panel 130. Since the LVDS interface 140 uses a lower voltage than the TTL, the LVDS interface 140 is effective in improving electromagnetic interference (EMI). The display panel 130 restores the low voltage data transmitted through the LVDS interface 140 to its original state.

The memory unit 145 may include a nonvolatile memory such as a ROM in which a control program and operating system (OS) information for performing overall operations of the wireless display apparatus 100 are stored, and the wireless display apparatus 100. It is composed of volatile memory, such as RAM, which temporarily stores data generated during the operation.

The audio codec 150 is externally output through an audio signal input from an audio input device such as a microphone and an internal speaker (not shown) and headphones built in the wireless display device 100 under the control of the central processing unit 180. Signal processing for the audio signal to be performed is performed.

The external input interface 155 may be connected to an external input device such as a digital camera, a memory stick, and a barcode scanner to support mutual data communication between the external input device and the central processing unit 180.

The docking unit 160 provides the auxiliary processing apparatus 170 with status information on docking and undocking of the wireless display apparatus 100 and the main body 200. In the present invention, the pivot shaft 300 illustrated in FIG. 2 corresponds to the docking unit 160. The wireless display device 100 is docked and detached from the main body 200 through the docking unit 160.

The switching unit 165 may be any one of a wired image signal input from the main body unit 200 through the docking unit 160 and a wireless image signal input through the wireless communication module 105 under the control of the central processing unit 180. One image signal is selectively switched to be displayed on the display panel 130.

The auxiliary processor 170 is a co-processor that assists the operation of the central processing unit 180. Input / outputs to the key input unit 120, the display panel 130, and the docking unit 160 may be performed. output) signal to the central processing unit 180. For example, the auxiliary processor 170 determines a docking state of the wireless display device 100 and the main body 200 by sensing a change in a signal output from the docking unit 160. For example, the auxiliary processor 170 may determine that the signal output from the docking unit 160 is docked when it changes from a logic high to a logic low, and conversely, when the signal output from the docking unit 160 changes from a logic low to a logic high. It is considered to be separated.

The central processing unit 180 controls the overall operation of the wireless display device 100 according to the control program stored in the memory unit 145. The CPU 180 determines an operation mode of the wireless display device 100 based on the docking state information transmitted from the auxiliary processor 170. That is, when it is determined that the wireless display device 100 is docked to the main body 200, the CPU 180 operates the wireless display device 100 in a wired monitor mode that performs only a display function. On the contrary, if it is determined that the wireless display device 100 is separated from the main body 200, the central processing unit 180 switches the wireless display device 100 to the wireless monitor mode for performing wireless communication with the main body 200. Operate.

In addition, the central processing unit 180 controls the switching operation of the switching unit 165 according to the docking state information transmitted from the auxiliary processing unit 170. That is, when it is determined that the wireless display device 100 is docked to the main body 200, the central processing unit 180 switches to output the wired video signal transmitted from the main body 200 through the docking unit 160. The unit 165 is controlled. On the contrary, if it is determined that the wireless display device 100 is separated from the main body 200, the central processing unit 180 controls the switching unit 165 to output an image signal output through the scaler 135. .

As described above, by applying the wireless display apparatus 100 having the wireless communication function to the portable information processing apparatus, it is possible to improve the mobility limitations of the conventional desktop information processing apparatus. That is, since the information processing apparatus according to the present invention is portable, the restriction of the place is eliminated, so that the information processing apparatus can be used not only indoors but also outdoors.

Although the present invention has been described in detail with reference to exemplary embodiments above, those skilled in the art to which the present invention pertains can make various modifications to the above-described embodiments without departing from the scope of the present invention. I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As described above, according to the present invention, the wireless display device can be used anywhere and anytime regardless of the place by adopting the wireless display device in the portable information processing device, so that the wireless display device can be used more efficiently. In addition, since the wireless display device can be separated from the main body, separate upgrades to the display device and the main body are possible.

Claims (6)

A mobile body capable of wireless communication with an external communication device; And In response to an input unit, a display unit, a wireless communication module, and a signal applied from the input unit, a data request signal is transmitted to the main body through the wireless communication module, and the data information received from the main body in response to the data request signal is read. And a wireless display device having a control unit for displaying processing on the display unit. The method of claim 1, The input unit, And at least one of a key input interface provided with a plurality of operation keys, a key input interface provided with an external key input device including a keyboard and a mouse, and a touch panel. The method of claim 1, The wireless display device performs wired or wireless communication with the main body according to whether the main body is connected to the main body, and performs the wired communication with the main body when connected to the main body, and the main body and the wireless when separated from the main body. Portable information processing device, characterized in that for performing communication. The method of claim 1, The wireless display device, A docking part connected to the main body; More, The control unit may be any one of a wired monitor mode for performing the wired communication with the main body through the docking unit and a wireless monitor mode for performing wireless communication with the main body through the wireless communication module according to whether the main body is connected to the main body. Portable information processing device, characterized in that for controlling to operate. The method of claim 4, wherein The control unit transmits the data request signal to the main body through the docking unit when operated in the wired monitor mode, and transmits the data request signal to the main body through the wireless communication module when operated in the wireless monitor mode. Portable information processing device characterized in that the control to. The method of claim 4, wherein The main body is formed with a shaft support for docking the wireless display device at one end, And the docking portion is a rotating shaft coupled to the shaft support portion formed on the main body.