Video and aural communications system

Details Video and aural communications system Video and aural communications system

1993-05-20

1996-04-16

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

3701101, 348 15, 379202, H04L 1218

Patent

active

055090095

ABSTRACT:
A dial-up aural and visual communication system includes a telecommunication network with a switch connected thereto, a codec subsystem connected to the switch and video equipment connected to the switch via the codec subsystem with voice communication equipment connected directly to the switch. The codec subsystem is shared between several end users and can be located near the switch. Sharing the codec reduces cost and amount of equipment at end users desk. The codec subsystem can also switch video, including composite video, between local lines and can include frame and image storage. The codec can transmit at 9.6 kbps, p.times.64 kbps, and via ISDN. The system can be used for video conferencing, remote surveillance or desk-top services, and can include an image grooming system. Images may be stored in switch facilities traditionally used for voice mail.

REFERENCES:
patent: 4650929 (1987-03-01), Boerger et al.
patent: 4715059 (1987-12-01), Cooper-Hart et al.
patent: 4847829 (1989-07-01), Tompkins et al.
patent: 4953196 (1990-08-01), Ishikawa et al.
patent: 4961211 (1990-10-01), Tsugane et al.
patent: 4980761 (1990-12-01), Natori
patent: 4995071 (1991-02-01), Weber et al.
patent: 5036390 (1991-07-01), Masunaga
patent: 5040177 (1991-08-01), Martin et al.
patent: 5157715 (1992-10-01), Fischer et al.
patent: 5315633 (1994-05-01), Champu
GLOBECOM'85, IEEE, Global Telecommunications Conference vol. 3, 5 Dec. 1985, New Orleans pp. 1206-1211 K. Ohno et al. `Digital Colour TV Multiplexing Equipment`.
Review of the Electrical Communication Laboratories vol. 33, No. 4, 1985, Tokyo JP pp. 647-655 K. Sawada et al `Multipoint Video Teleconferencing`.
Philips Telecommunication Review vol. 47, No. 2 Jun. 1989, Hilversum NL pp. 20-35, XP00054482 N. Hahn `Video Conferencing`.
NEC Research and Development No. 96, Mar. 1990, Tokyo JP pp. 13-29, XP000136294 T. So et al. `C&C Systems Infrastructure`.
Electronics and Communication Engineering Journal vol. 3, No. 1, Feb. 1991, London GB pp. 4-12 XP000208832 P. T. Kirstein `Experiences with the University of London Interactive Video Education Network`.
1974 IEEE Intercon Technical Program Papers 29 Mar. 1974, New York City pp. 1-6 N. O. Johannesson `Design Considerations for a Picture Telephone Set`.
Fernseh- und Kino-Technik vol. 29, No. 1 Jan. 1975, Munchen pp. 5-9 G. Brand `Experimentelle Studie fur ein Farbildtelefonsystem`.
Review of the Electrical Communication Laboratories vol. 33 No. 4 1985, Tokyo JP pp. 563-571 S. Hashimoto `Broadband Communication System`.

Affiliated with

Also associated with

Rating

Video and aural communications system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video and aural communications system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video and aural communications system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-331092