TWI227987B - A visual telephone combined PSTN and ADSL - Google Patents

Abstract

This invention of a visual telephone combined PSTN and ADSL mainly consists of a conventional PSTN telephone set with a control module unit, a ADSL module unit with an image access, and a display unit and integrated as a visual telephone, which uses conventional telephone line for two-way transmitting video and audio and is able to directly connect visual telephone and PSTN line system. When the caller and the receiver both use visual telephones, the control module unit is driven to send a signal to make the ADSL module unit get on line and get a IP address A as soon as the caller dials the receiver's telephone number on the visual telephone set; and control module unit of the receiver's visual telephone will send a message to make ADSL module unit on line and get another IP address B as soon as it receives the ring signal from the caller and the user pick up the handset, and then IP address A or B is transmitted through PSTN either to the control module unit of a caller or a receiver and is connected to the caller or receiver through internet. Connections mentioned above transmit sound by PSTN and visual information by high frequency section of ADSL. It is also available to construct initial connection by PSTN and to mutually transmit sound and digital visual information of caller and receiver by Internet.

Description

No. 1 91121013 _ month said amendment 5. Description of the invention (1)

The present invention "videophone combining PSTN and ADSL" aims to provide a telephone device that can use both traditional telephone lines (twisted pair) for two-way transmission of video and sound. It can not only use psTN (public switched telephone network, use copper wire) To transfer analog voice (ANALOG) telephone system) to do the voice transfer function of general telephone, it can use ADSL (Asymmetric ~ Digital ~ Subscriber ~ Line) high frequency band (2 5KHZ ~ 1MHZ) to transmit image data, and psTN is established The connection between the two machines' transmits the IP location and the Port location through the PSTN line in any form, which includes the callee passing to the caller or the receiver passing to the callee, and then transmitting digital data through the Internet. Both the recipient and the sender are transmitting both video and audio signals. According to the mainstream, world-wide Wi-Fi service and media service volume, various speed-up dial-up electrical local area network speeds have been proposed. Since the analog telephone network (PSTN) infrastructure is the most complete today It has the highest performance and the lowest price, and has always played the role of data communication. In addition, in recent years, the rapid development of ^^^, especially de ~ Web (WWW), in addition to providing traditional email delivery services combined with voice and pictures Various services such as motion pictures and so on come with these services. Very large amounts of data. In order to obtain higher-speed data access capabilities, I SP vendors have proposed solutions for transmission rates. When the Internet In the multimedia industry, modems of 28.8, 33.6, or 56 kbps are becoming more and more unsatisfactory for users of traditional telephone networks (currently connected users and ISDN users cannot meet the current network provisioning).

Page 6 /; M2§nf __ " · 1 丨 _ Case No. 91112013 Λ__η Revision V. Description of the Invention (2) So that ~ DSL (Digital ~ Subscribet ~ Line) digital user circuit gradually attracted everyone's attention . DSL, as its name implies, is a digital subscriber line. Among them, ADSL (Asymmetric Digital Subscriber Line) is currently the most noticeable ~ DSL technology, because it can use the existing PSTN (POTS) line to transmit high transmission rate messages without the need for To increase the technology of existing infrastructure equipment, its related standards have also been formulated, which will definitely bring us considerable benefits in the future; and 'ADSL directly translates the word meaning "asymmetric digital subscriber line", in short, it is Use the high frequency band (30K ~ 1 MHz) in the existing telephone line (copper phone line in current home users) to transmit signals, and it does not overlap with the low frequency band (0 ~ 4KHz) occupied by telephone voice, so it can be transmitted at the same time Voice and data, and increase transmission rates. … Because ADSL uses existing PSTN (POTS) lines to transmit high-rate messages, traditional telephone functions are indispensable. Among the bandwidth of 丨 MHz, the lowest 4KHz bandwidth (0-4KHz) is used for traditional telephone services; this 4KHz bandwidth is called p0TS ~ Splitter ^ passive ~ filter from 1MHz The bandwidth is separated and dedicated to traditional telephone services. The other 100KHz to L 1MHz is used to transmit computer data at a maximum of 6 bits per second. And, because ... the signals are combined on the same line to transmit the power of the p〇TS signal, provided by the telecommunications company, so even if the ADSL line is unavailable or your computer is off, it still has power, so Users can still use the POTS channel to separate voice signals from ADSL signals to make calls. Because A D S L separates traditional telephone services from computer data services at different frequencies

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Case No. 9112013_ Car month said amendment ___ 5. Description of invention (3) Road, so you can ensure that the telephone service will not be unavailable due to ADSL service failure or suspension; this means that even if you use ADSL for multimedia transmission , The phone still works. In addition, with the introduction of many related products in recent years, PSTN has directly improved the communication bandwidth or indirectly reduced the user ’s demand for bandwidth. In addition, the popularity of the newly launched communication network in the short range is still quite limited. Therefore, the PSTN is still the mainstream of the data communication network. "Yes" The invention "the videophone that combines PSTN and ADSL" means that the phone body of a general PSTN system is integrated with a control module unit, a ... 讣 module unit and image capture and display unit into a usable tradition. Telephone line (twisted pair) is a video phone for two-way transmission of video and sound. In use, PSTN can be used as the voice transmission function of general telephones, and the high-frequency band (25KHZ ~) of ADSL (Asymmetric ~ Digital ~ Subscriber ~ Line) is used 1MHZ) to transmit image data, and the PSTN establishes a connection between the two machines' to pass the IP location and port location through the PSTN line in any form, among which the packet δ and the clean side are passed to the caller or receiver, through the Internet Pass on digital data. On the callee and sender: Same: video and audio signal transmission. === The recipient and the sender simultaneously transmit the video signals of both parties as their main purpose. ΐ-= ί Schematic diagram of the basic composition of the videophone in the invention. Shows the sound and image transmission status of the videophone in the present invention ~~ '_-

According to the present invention, a "videophone combining PSTN and ADSL", the structure of the videophone is as shown in the first figure, and the phone body of a PSTN system is the main structural body. The phone bodies (10) and (11) have the basic structure. Analog sound transmission lines, microphones (1 1 1) for receiving and sending sounds, and dialing components (not shown in the figure) ', and the composition of the overall videophone (1) is a phone body (1〇) that cooperates with the PSTN system. ) Integration: a control module unit (12) \ is connected with the telephone line of the telephone body (10) to form the voice transmission of the PSTN telephone.

The composition of the overall video phone (2) is integrated with the phone body (11) of the PSTN system: a control module unit (12) is connected to the phone line of the phone body to form the sound transmission of the PSTN phone. And at the same time when the electrical activity is started, an order ADSL module unit (13) is dialed to the online IP position A (15); — ADSL module unit (13) is connected to the PSTN line

An IP position B (16) is obtained to use the PSTN line to dial on the Internet after the signal from the control module unit (12) is activated to form a digital signal transmission for the called party and the calling party; an image capture and display unit (14), which is connected with the ADSL module unit (1 3), and has an image sensor (丨 4 丨) and a display device (142) ', and its image sensor (丨 41) and display (142) The shirt image can be directly transmitted by a digital signal. The image sensor (丨 4 ^) is used to obtain the digital image signal of the caller, and the shirt image signal is transmitted to the other end via the 讣 module unit (13). The callee and the caller, and the display device (142) will present the image signal transmitted by the callee and the caller at the other end.

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V. Description of the invention (5) Outside 'and combine 4K Η z P 0 TS 5 Tiger and DSL signal, and then transmit the gas signal to each client through the existing PSTN line, the filter will send the POTS signal It is separated from the digital signal, and then the digital signal is demodulated or decoded. As for the image capture and display unit (4), the image sensor 141 can be directly classified as a form composed of a CCD element. The digital image signal, of course, can also be a relatively inexpensive digital image sensor in the form of CMOS, which can also be used to capture digital image signals to facilitate the signal transmission of the ADSL module unit (13), and its display (142) It can be in the form of LCD, or other display to directly display the received digital image signal.

According to 'the videophone (1) of the present invention can be directly connected to the psTN line, and under the situation that the callee and the caller simultaneously use the videophone (1), the user of the caller uses the videophone (丨) Microphone (丨 丨 丨) and dial the callee's phone number, the control module list (signal is activated, the ADSL module unit is dialed online and obtains lIp ^ 2 address β

A (1 5) 'The control module unit (1 2) in the video phone (1) of the calling party received the Ring signal from the calling party, and after the user picked up the microphone (011) to start, immediately Send a signal to order the ADSL module unit (13) to go online to obtain another IP address B (16), and the IP address a (15) 4B (16) to the control module of the speaking party or the calling party via the PSTN line In the unit (12), and connected to the speaking party or the calling party through the Internet, 'they are connected according to the location of psTN, and start transmitting and receiving the image data of the calling party and the called party to achieve the use of PSTN It can be used as a voice transfer function for general telephones, and uses ADSLi high-frequency band to transmit image data.

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Date _ Case No. 91121013 V. Description of Invention (6) Fang's image signal transmission.

In the way shown in the second figure, the pSTN is used for the voice transmission function of general telephones, and the high-frequency band (2 5KHZ ~ 1MHZ) of ADSL (Asymmetric ~ Digital ~ Subscriber ~ Line) is used to transmit image data. PSTN established two The connection of a machine 'passes the IP location and port location through the PSTN line in any form, which includes the callee passing to the caller or the callee passing to the callee, and then transmitting digital data through the Internet. At the same time as the callee and the speaking party, the shirt and voice signals of both parties are transmitted. And the purpose of transmitting the video signals of both parties can be done at the same time as the receiver and the caller of both parties; in particular, the video transmission between the two parties is performed by traditional dialing, and the action can be completed without changing the original dialing habits, which highlights its operation Convenience of use.

/ The "video telephone combining PSTN and ADSL" of the present invention integrates a conventional psTN system telephone with a control module unit, a module unit and an image capture and display unit into a usable traditional telephone line (dual Twisted wire) video phone for video and audio two-way transmission, so that PSTN can be used as the voice transmission function of ordinary telephones when using, and the high frequency band (25KHZ 1MHZ) of aDSL (Asymmetric Digital Subscribe Line) is used to transmit image data, and pstn establishes a connection between the two machines' to pass the 1 {> position and the position of po rt through the PSTN line in any form, which includes the transfer of the callee to the caller or the receiver to the callee, and then the transmission

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1 Lion. 98: Case No. 91121013 Modified Brief Description of the Drawings The first picture is a schematic diagram of the basic composition and structure of a videophone in the present invention. The second figure is a schematic diagram of the sound and video transmission state of a videophone in the present invention. (1) Video call {speaking party} (10) Phone body 丨 speaking party} (1 2) Control module unit (1 4) Image capture and display unit (15) IP position A (1 1 1) Microphone (1 4 1) Digital image sensor (2) Video call {recipient} (11) Telephone body {recipient} (13) ADSL module unit (16) IP location B (1 4 2) digital display

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Claims (1)

1. A type of "video telephone system combining PSTN and ADSL with the main body of the PSTN system as the main surname * the knot of the video telephone has a basic analog voice transmission line," for the main microphone of the phone, and the dial component, and the overall video ^ The phone body of the PSTN system that emits voices is integrated with:, and the system is connected with the road to form a command and receive a control module single network at the same time to form a control module unit of the callee. The voice transmission of the PSTN phone with the telephone line of the phone itself, and the ADSL module unit on the phone to dial the online signal; an ADSL module unit, connected to the PSTN line, after the yuan signal is activated, use the PSTN line to dial up and down Digital signal transmission of the calling party; an image capture and display unit is connected with the ADSL module unit, and presents _ image sensor and a display to obtain the image signal of the caller by the image sensor, and through ADSL The module unit sends the image signal to the other end = active party and sender 'and the display will send the image signal sent by the other party and the caller. Presentation; according to this, the videophone can be directly connected to the PSTN line, and when the callee and the caller are using the videophone at the same time, when the user of the caller uses the videophone microphone and dials the phone number of the callee At that time, the control module unit is started to send a signal 'Let the ADSL module unit dial up and go online, and obtain an IP address A'. The control module unit in the video call of its receiver receives the Ring signal from the caller. When the user picks up the microphone and activates it, a signal is sent to the ADSL module unit to dial on-line to get another ~ IP address B, and pass the IP location A or B to the recipient or the caller via PSTN. Page 14 Case No. 91121013 VI. Scope of patent application In the control module unit, and connected to the callee or the caller via the Internet, they are connected according to the IP position transmitted from the PSTN, and start to transfer the image data of the caller and callee in a round to achieve the use of psTN. General telephone, sound transmission function, and use ADSL high-frequency band to transmit image data, and "the receiver and the caller of both parties do the video signal transmission of both parties at the same time. j As described in item 丨 of the scope of the patent application, "combining" "and ADSL videophones", which can also use PSTN to establish an initial connection, and then use the Internet to transmit and receive each other, the voice and video digital data of the recipient , 1 is a feature. ~ 3 As described in the second item of the scope of the patent application, "Video Phone Combining pstn and ADSL", in which the PSTN is connected, the PSTN connection can be cut off after the Internet connection is established, and digital data is transmitted through the Internet Better 0 4 · As described in item 2 of the patent scope, "combining" with ADSL videophone ", in which the PSTN is used to establish a connection between two machines, and the point-to-point network is transmitted through the PSTN line in any form Relevant information required for communication, 1? Position and Port position, which include the callee passed to the caller or receiver to the callee, and then digital data is transmitted through the Internet, and the PSTN line can be cut off when passed through the Internet Or do not cut off the PSTN line. 5_ As described in item 1 of the patent scope, "video phone that combines PSTN and ADSL", "wherein" the image sensor and the display are preferably those capable of directly transmitting an image as a digital signal. 6. The "telephone that combines PSTN and ADSL" as described in item 5 of the scope of the patent application, where 'the display is in the form of an LCD liquid crystal display, or Page 15 Fix% 2§JJZ. Case No. 91121013 Amendment 6. Scope of patent application It displays the digital video signal received directly by the display. 7. As described in item 5 of the patent, the “video phone combining PSTN and ADSL”, wherein the image sensor is a digital image sensor in the form of a CCD element. 8. As described in item 1 of the patent, the "video phone combining PSTN and ADSL", wherein the image sensor is a digital image sensor in the form of a CMOS element. Page 16