CN1328895C

CN1328895C - PSTN and ADSL combined audio visual telephone

Info

Publication number: CN1328895C
Application number: CNB031558348A
Authority: CN
Inventors: 黄正恕
Original assignee: SHANGHONG ELECTRON CO Ltd
Current assignee: Shanghong Electron Co., Ltd.
Priority date: 2003-08-25
Filing date: 2003-08-25
Publication date: 2007-07-25
Anticipated expiration: 2023-08-25
Also published as: CN1592311A

Abstract

The present invention relates to a PSTN and ADSL combined audio visual telephone capable of executing the bidirectional transmission of images and sound by using a traditional telephone line, which is composed of the main body of a general PSTN system telephone set, a control module unit, an ADSL module unit and an image shooting and displaying unit which are integrated. When a conversation receiver and a conversation transmitter are simultaneously in the state of using the audio visual telephone, the control module unit is activated to transmit a signal when the conversation transmitter uses the audio visual telephone to dial the telephone number of the conversation receiver, and the ADSL module unit is logged on line and obtains an IP address; the audio visual telephone of the conversation receiver receives a ringing signal and transmits a signal immediately after the audio visual telephone is activated when a microphone is picked up, the ADSL module unit is logged on line and obtains another IP address, and the IP address is transmitted back to the ADSL module unit of the conversation transmitter; the conversation transmitter connects the IP of the conversation receiver according to the original IP address so as to achieve the sound transmission function of a general telephone by using the PSTN, and the image signals of the conversation receiver and the conversation transmitter can be simultaneously transmitted during receiving and transmitting the conversation by using an ADSL high-frequency section to transmit image information.

Description

Visual telephone in conjunction with PSTN and ADSL

Technical field:

The present invention relates to a kind of phone, relate in particular to a kind of visual telephone in conjunction with PSTN and ADSL.

Background technology:

Because the architecture of analog telephone network (PSTN) is the most complete now, popularization is the highest, and price is the cheapest, and playing the part of the main flow of data communication always, add, the fast development of Internet in recent years, especially World ~ Wide ~ Web (WWW), except traditional E-mail conveyance service is provided, also combine voice, multimedia service miscellaneous such as picture and dynamic image, be accompanied by these services and come, be very huge data quantity, so in order to obtain data access ability more at a high speed, the numerous and confused scheme that proposes various raising transmission rates of ISP dealer; And when the multimedia on the Internet is more and more popular, 28.8,33.6 or the Modem of 56kbps dial and connect user's of the formula telephone network to(for) tradition more and more can't satisfy (connect user and isdn user on the LAN at present, also can't satisfy the speed that present network provides).

To such an extent as to make ~ DSL (digital user loop of Digital ~ Subscribet ~ Line) gradually be subjected to everybody attracting attention.DSL is as the term suggests be a kind of digital subscriber's line, wherein, ADSL (Asymmetric Digital Subscriber Line) is gazed at ~ the DSL technology at present most, because it can utilize existing PSTN (POTS) circuit to transmit the message of high transmission rates, and do not need to increase again the technology of existing infrastructure equipment, the standard that tool is relevant also is formulated out, will certainly bring suitable benefit to us in the future; Secondly, it promptly is " asymmetrical digital subscriber line " that ADSL directly translates the meaning of word, briefly be exactly to utilize high frequency band in the existing telephone line (at present copper telephone wire in domestic consumer) (30K ~ 1MHz) transmits signal, (0 ~ 4KHz) is not overlapping for the low-frequency band shared with call voice, therefore can transmit voice and data simultaneously, and improve transmission rate.

Because ADSL utilizes existing PSTN (POTS) circuit to transmit the message of high transmission rates, so the black phone function is indispensable.In the frequency range of 1MHz, minimum 4KHz frequency range (0-4KHz) is used to do traditional telephone service; The frequency range of this 4KHz is by a passive type filter (passive ~ filter) separate from the frequency range of 1MHz who is called POTS ~ Splitter, be used for doing traditional telephone service specially, other 100KHz is to 1.1MHz, and then the mode with 6 bits of maximum per seconds transmits computer data.And, because combining, the ADSL signal transmits the electric power of POTS signal on same circuit, provide by telecommunications company, even so adsl line can't use or your computer shutdown, it remains electric power, so the user still can utilize the POTS channel, from the ADSL signal, isolate the signal of voice and make a phone call.Because ADSL is separated in traditional telephone service on the different channels with the service of computer data, it is hereby ensured that telephone service is unlikely because can't use when ADSL service fault or termination; This means both make you by ADSL when carrying out multimedia transmission, but still normal operation of phone.Moreover, in recent years along with the release of multinomial Related product, directly improve the communication frequency range of PSTN or reduce the demand temperature of user to frequency range indirectly, the popularity rate of communication network in short range of adding new release is still quite limited, therefore makes PSTN remain the main flow of data communication network.

Summary of the invention:

The present invention aims to provide a kind of telephone device that utilizes traditional phone line (twisted-pair feeder) to carry out image and sound transmitted in both directions, it not only can utilize PSTN (public exchanging telephone network, the telephone system of using copper cash to come transportation simulator (ANALOG) sound) does outside the transfer voice function of regular phone, ((the transmission image data of 25KHZ ~ 1MHZ), the signal of video signal of being both sides when can be talked about, give orders or instructions both sides transmits the high band of Asymmetric ~ Digital ~ Subscriber ~ Line) more to utilize ADSL.

According to a kind of visual telephone provided by the invention in conjunction with PSTN and ADSL, the structure of its visual telephone is that the phone body by the PSTN system is the primary structure main body, its phone main body has basic simulated sound transmission line, and for receiving, send the handle of sound, and dialing assembly, the composition of whole visual telephone then is to cooperate the phone body of PSTN system also to be equipped with: a control module unit, be connected with the talk line of described phone body, in order to constituting the transfer voice of PSTN phone, and when phone activates, send one and make the ADSL modular unit dial and connect the signal of reaching the standard grade; One ADSL modular unit is connected with described PSTN circuit, with behind the signal activation that receives described control module unit, utilizes described PSTN circuit to dial up on the telephone, and transmits with formation talked about, give orders or instructions both sides' digital signal; One image capturing, display unit, be connected with described ADSL modular unit, have an image sensor and a display, to obtain caller's signal of video signal by described image sensor, and signal of video signal is sent to the correspondent of the other end, and will present by the signal of video signal that correspondent transmitted of the other end by described display by described ADSL modular unit; Therefore, visual telephone directly can be connected with the PSTN circuit, and talked about, the calling party uses under the state of visual telephone simultaneously, pick up the handle of visual telephone as calling party's user, and when dialing the telephone number of the side talked about, promptly activate the control module unit and send a signal, the ADSL modular unit is dialed and connected reaches the standard grade, and obtain an IP address, control module unit in the visual telephone of its side talked about is when receiving calling party's bell signal, and after the user picks up the handle activation, sending a signal immediately dials and connects the ADSL modular unit to reach the standard grade and obtains another IP address, and the IP address is back in calling party's the ADSL modular unit, connecting the IP of the side talked about according to original IP address by the calling party, and beginning mutually transmission give orders or instructions, the image data of the side talked about reaches the transfer voice function of utilizing PSTN to do regular phone, and utilize the high band of ADSL to transmit image data, can be talked about both sides, do both sides' signal of video signal transmission when giving orders or instructions.

Has following advantage according to a kind of visual telephone provided by the invention: because with the phone body and a control module unit of general PSTN system in conjunction with PSTN and ADSL, one ADSL modular unit and image capturing, display unit matches and becomes one and can utilize traditional phone line (twisted-pair feeder) to carry out the visual telephone of image and sound transmitted in both directions, can utilize PSTN to do the transfer voice function of regular phone during use, utilize the ADSL (high band of Asymmetric ~ Digital ~ Subscriber ~ Line) (the transmission image data of 25KHZ ~ 1MHZ) simultaneously, thereby can be talked about both sides, do both sides' signal of video signal transmission when giving orders or instructions, realize the purpose of video telephone.

Description of drawings:

Fig. 1 is the basic composition configuration diagram of visual telephone among the present invention.

Fig. 2 is the sound and the image transmission state schematic diagram of visual telephone among the present invention

The name of each label in the accompanying drawing is called:

1 ... visual telephone 11 ... phone body 111 ... handle 12 ... the control module unit

13 ... ADSL modular unit 14 ... image capturing, display unit 141 ... digitized video inductor 142 ... digital display

Embodiment:

Referring to Fig. 1, the present invention is in conjunction with the visual telephone of PSTN and ADSL, the structure of its visual telephone is that the phone body 11 by a PSTN system is the primary structure main body, described phone main body 11 has basic simulated sound transmission line, and for receiving, send the handle 111 of sound, and dialing assembly, do not indicate among the figure, the composition of whole visual telephone 1 then is to cooperate the phone body 11 of PSTN system also to be equipped with: a control module unit 12, be connected with the talk line of described phone body 11, in order to constituting the transfer voice of PSTN phone, and when phone activates, send one and make ADSL modular unit 13 dial and connect the signal of reaching the standard grade; One ADSL modular unit 13 is connected with described PSTN circuit, behind the signal activation of accepting described control module unit 12, utilizes the PSTN circuit to dial up on the telephone, and transmits with formation talked about, give orders or instructions both sides' digital signal; One image capturing, display unit 14, be connected with described ADSL modular unit 13, have an image sensor 141 and a display 142, described image sensor 141 is good with described display 142 can directly video conversion being become digital data transmission, to obtain caller's digital image signal by described image sensor 141, and signal of video signal is sent to the correspondent of the other end, and will present by the signal of video signal that correspondent transmitted of the other end by described display 142 by described ADSL modular unit 13.

Wherein, described ADSL modular unit 13 is except the framework that constitutes a dialing netwok access, and POTS signal and the DSL signal combination of 4KHz got up, and then after signal is sent to client by existing PSTN circuit, filter (filter) can be with the POTS signal by separating in the digital signal, and digital signal is again through demodulation or decoding then; As for, image sensor 141 in described image capturing, the display unit 14 can be made of the CCD assembly, with direct picked-up digital image signal, certainly it also can be the digitized video inductor that the comparatively cheap cmos component of price constitutes, equally can be in order to the picked-up digital image signal, being convenient to the signal transmission of described ADSL modular unit 13, and described display 142 can be the LCD LCD, or other the display that can directly the digital image signal that is received be presented.

Visual telephone 1 of the present invention can directly be connected with the PSTN circuit, and talked about, the calling party uses under the state of visual telephone 1 simultaneously, when calling party's user picks up the handle 111 of visual telephone 1 and dials the telephone number of the side talked about, promptly activate described control module unit 12 and send a signal, described ADSL modular unit is dialed and connected reaches the standard grade, and obtain an IP address, control module unit 12 in the visual telephone 1 of its side talked about is when receiving calling party's bell signal, and after the user picks up described handle 111 activation, sending a signal immediately dials and connects described ADSL modular unit 13 to reach the standard grade and obtains another IP address, and the IP address is back in calling party's the described ADSL modular unit 13 by audio signal, connecting the IP of the side talked about according to original IP address by the calling party, and beginning mutually transmission give orders or instructions, the image data of the side talked about.

Referring to Fig. 2, reach the transfer voice function of utilizing PSTN to do regular phone, and utilize the ADSL (high band of Asymmetric ~ Digital ~ Subscriber ~ Line) (the transmission image data of 25KHZ ~ 1MHZ), and do the purpose of both sides' signal of video signal transmission when can be talked about, give orders or instructions both sides; Especially, both sides carry out image and transmit the action of being called by tradition and can finish, and needn't change original dialing custom, more highlight the convenience that it is manipulated.

The present invention is in conjunction with the visual telephone of a PSTN and ADSL telephone set and the control module unit by general PSTN system, one ADSL modular unit and image capturing, display unit matches and becomes one and can utilize traditional phone line (twisted-pair feeder) to carry out the visual telephone of image and sound transmitted in both directions, can utilize PSTN to do the transfer voice function of regular phone in use, and utilize the ADSL (high band of AsymmetricDigital Subscriber ~ Line) (the transmission image data of 25KHZ ~ 1MHZ), and can be subjected to both sides, do both sides' signal of video signal transmission when giving orders or instructions, a preferable feasible visual telephone is provided.

Claims

1, a kind of visual telephone in conjunction with PSTN and ADSL, the structure of its visual telephone is that the phone body by the PSTN system is the primary structure main body, its phone main body has basic simulated sound transmission line, and for the handle that receives, sends sound, and the dialing assembly, the composition of whole visual telephone then is to cooperate the phone body of PSTN system also to be equipped with:

One control module unit is connected with the talk line of described phone body, in order to constituting the transfer voice of PSTN phone, and sends one make the ADSL modular unit dial and connect the signal of reaching the standard grade when phone activates;

One ADSL modular unit is connected with described PSTN circuit, with behind the signal activation that receives described control module unit, utilizes described PSTN circuit to dial up on the telephone, and transmits with formation talked about, give orders or instructions both sides' digital signal;

One image capturing, display unit, be connected with described ADSL modular unit, have an image sensor and a display, to obtain caller's signal of video signal by described image sensor, and signal of video signal is sent to the correspondent of the other end, and will present by the signal of video signal that correspondent transmitted of the other end by described display by described ADSL modular unit;

Therefore, visual telephone directly can be connected with the PSTN circuit, and talked about, the calling party uses under the state of visual telephone simultaneously, pick up the handle of visual telephone as calling party's user, and when dialing the telephone number of the side talked about, promptly activate the control module unit and send a signal, the ADSL modular unit is dialed and connected reaches the standard grade, and obtain an IP address, control module unit in the visual telephone of its side talked about is when receiving calling party's bell signal, and after the user picks up the handle activation, sending a signal immediately dials and connects the ADSL modular unit to reach the standard grade and obtains another IP address, and with the IP address with reaching in calling party's the ADSL modular unit, connecting the IP of the side talked about according to original IP address by the calling party, and beginning mutually transmission give orders or instructions, the image data of the side talked about reaches the transfer voice function of utilizing PSTN to do regular phone, and utilize the high band of ADSL to transmit image data, can be talked about both sides, do both sides' signal of video signal transmission when giving orders or instructions.

2, the visual telephone in conjunction with PSTN and ADSL as claimed in claim 1 is characterized in that: described image sensor can directly become digital signal with video conversion with described display, and with digital data transmission.

3, the visual telephone in conjunction with PSTN and ADSL as claimed in claim 1 or 2 is characterized in that: described display is that LCD LCD or other can directly convert received digital signal to the display of signal of video signal.

4, the visual telephone in conjunction with PSTN and ADSL as claimed in claim 1 or 2 is characterized in that: described image sensor is the digitized video inductor that the CCD assembly is constituted.

5, the visual telephone in conjunction with PSTN and ADSL as claimed in claim 1 or 2 is characterized in that: described image sensor is the digitized video inductor that cmos component constituted.

6, the visual telephone in conjunction with PSTN and ADSL as claimed in claim 1 or 2 is characterized in that: the side talked about is back to the IP address in calling party's the ADSL modular unit with audio signal.