Audiovisual communications terminal apparatus for teleconferencing and method

• US 6,128,033 A
• Filed: 06/28/1996
• Issued: 10/03/2000
• Est. Priority Date: 06/28/1996
• Status: Expired due to Term

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Pitman, Jack Andrew II, Friedel, Seymour Abraham, Pieters, Herman Joseph
• Primary Examiner(s): Kuntz, Curtis A.
• Assistant Examiner(s): Ramakrishnaiah, Melur
• Application Number:
  US08/674,233
• Time in Patent Office: 1,558 Days
• Field of Search: 379/93.05, 379/93.06, 379/93.07, 379/93.21, 379/93.33, 379/93.34, 379/100.12, 379/100.17, 379/202, 348/14, 348/15, 348/16, 348/17, 348/18, 348/19, 395/200.66, 395/200.34, 370/260, 370/264, 709/204
• US Class Current: 348/14.04
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

An audiovisual communications terminal apparatus is adapted for interconnection to at least another audiovisual communications terminal apparatus by a communications medium to form an audiovisual teleconferencing network. The audiovisual communications terminal apparatus includes an interface device, producing and transmitting means and receiving and broadcasting means. The interface device is operative to condition input audiovisual signals received from the at least another audiovisual communications terminal apparatus and to condition output audiovisual signals for processing by the at least another audiovisual communication terminal apparatus. Conditioning occurs by using an available one of a digital video communications standard and an analog video communications standard. The producing and transmitting means produce the output audiovisual signals and transmit the produced output audiovisual signals through the interface device and into the communications medium. The receiving and broadcasting means receive the input audiovisual signals from the interface device and broadcast the received input audiovisual signals thereby creating an audiovisual teleconference between two users so that the users can both see and hear each other. A method of processing output audiovisual signals is also described.

Claims

1. An audiovisual communications terminal apparatus adapted for interconnection to at least another audiovisual communications terminal apparatus by a communications medium to form a teleconferencing network, said audiovisual communications terminal apparatus comprising:

an interface device operative to condition input audiovisual signals received from each other audiovisual communications terminal apparatus and to condition output audiovisual signals for processing by another audiovisual communications terminal apparatus, wherein the interface device can automatically select [to use] a digital video communications standard and an analog video communications standard;

wherein the audiovisual communications terminal is simultaneously connected to a first other audiovisual communications terminal using an analog video communication standard and is connected to a second other audiovisual communications terminal using a digital video communications standard.

2. An audiovisual communications terminal apparatus according to claim 1, wherein said interface device includes whereby said modem and a terminal adaptor whereby said modem for conditioning digital output and input audiovisual signals.

3. An audiovisual communications terminal apparatus according to claim 2, wherein said terminal adaptor is operative to condition respective ones of the output and input audiovisual signals at a rate of at least 28.8 kilobits per second.

4. An audiovisual communications terminal apparatus according to claim 2, wherein said terminal adaptor is operative to condition respective ones of the output and input audiovisual signals at a rate of at least 10 video frames per second.

5. An audiovisual communications terminal apparatus according to claim 1, wherein said producing means includes a microphone and a video camera.

6. An audiovisual communications terminal apparatus according to claim 5, further comprising a housing sized and adapted to contain said microphone and said camera.

7. An audiovisual communications terminal apparatus according to claim 6, wherein said camera is operative to move between a stowed state whereby said camera is contained within said housing and an extended state whereby said camera projects from said housing.

8. An audiovisual communications terminal apparatus according to claim 5, wherein said housing is sized and adapted to include said interface device.

9. An audiovisual communications terminal apparatus according to claim 1, wherein said receiving and broadcasting means includes at least one of a television, a computer and monitor set and a video cassette recorder.

10. An audiovisual communications terminal apparatus according to claim 9, wherein said receiving and broadcasting means includes a composite video signal device interconnected between said interface device and said at least one of said television, said computer and monitor set and said video cassette recorder.

11. An audiovisual communications terminal apparatus according to claim 10, wherein said composite video signal device is operative to conform to one of a NTSC standard and a PAL standard.

12. An audiovisual communications terminal apparatus according to claim 1, wherein the communications medium is selected from a group including an analog telephone line system, a digital telephone system, a microwave telecommunications system, an ISDN system, a cable television line system and a satellite network system.

13. An audiovisual communications terminal apparatus according to claim 1, further comprising means for dialing telephone numbers.

14. An audiovisual communications terminal apparatus according to claim 13, wherein said interface device is connected to at least one telephone line for connecting said interface device to a telephone network.