1
Joe W Duran, Michael L Kenoyer, Edward H Cooper Jr, JoonYoul Maeng: Video-telephone communications system. Video Telecom, Rockey and Rifkin, January 9, 1990: US04893326 (232 worldwide citation)

An auxiliary unit is used in conjunction with a personal computer based work station for interconnecting the work station to an audio-visual communications network. The auxiliary unit includes a CRT, a camera, a speaker phone circuit, and a CPU for interfacing these elements with each other and with ...


2
Koichi Umezawa, Hiroyuki Kuriyama, Takanori Nishiyama, Kiyoshi Ishida, Iwao Ishinabe: Video telephone equipment. Hitachi, Evenson McKeown Edwards & Lenahan, February 13, 1996: US05491507 (220 worldwide citation)

A handy type video telephone equipment which permits a user to transmit and receive pictures and speech with a casing held in one hand. A speaker is arranged at the upper end part of the front of the casing which is thin and vertically long, while a microphone is arranged at the lower end part there ...


3
Jerome H Lemelson, Christian Grund: Video telephone. March 24, 1981: US04258387 (181 worldwide citation)

An apparatus and method are provided for transmitting video data over telephone lines. The apparatus is particularly applicable for transmitting and receiving images of persons speaking to each other. In one form, a portable self-contained unit is provided at each end of a conventional telephone cir ...


4
Irwin Gerszberg, Jeffrey S Martin, Thomas Oplinger, Philip Andrew Treventi, Hopeton S Walker: Set top integrated visionphone user interface having multiple menu hierarchies. AT&plus T, Banner & Witcoff, May 28, 2002: US06396531 (179 worldwide citation)

A system architecture for bypassing a local exchange carrier comprises an intelligent terminal, a residential gateway coupled to the terminal, a cable facility management platform terminating a twisted pair or coaxial cable facility and a network service platform. The platform serves both a cable he ...


5
Jerome H Lemelson, Christian Grund: Video telephone. November 27, 1984: US04485400 (168 worldwide citation)

An apparatus and method are provided for transmitting video data over telephone lines. The apparatus is particularly applicable for transmitting and receiving images of persons speaking to each other. In one form, a portable self-contained unit is provided at each end of a conventional telephone cir ...


6
Ya Qin Zhang, Sohail Zafar: Variable-block size multi-resolution motion estimation scheme for pyramid coding. GTE Laboratories Incorporated, J Stephen Yeo, Victor F Lohmann III, December 19, 1995: US05477272 (162 worldwide citation)

A novel variable-size block multi-resolution motion estimation (MRME) scheme is presented. The motion estimation scheme can be used to estimate motion vectors in subband coding, wavelet coding and other pyramid coding systems for video compression. In the MRME scheme, the motion vectors in the highe ...


7
Andreas C Papanicolaou, Cheng D Yu: Video telephony dialing. AT&T Bell Laboratories, Ronald D Slusky, January 11, 1994: US05278889 (147 worldwide citation)

In a video telephony system, a coaxial cable network, which is preferably a part of an existing cable television system, provides a local link for the transmission of the video telephone signals between each originating and destination location and a respective "head end" located on the cable compan ...


8
Francois Sawyer: System and method of providing targeted advertising during video telephone calls. Telefonaktiebolaget LM Ericsson, Smith & Danamraj PC, July 4, 2000: US06084628 (145 worldwide citation)

A system in a telecommunications network for providing targeted advertising to subscribers utilizing display screens to conduct a video telephone call. The system comprises a centralized database of subscriber advertising preferences, an information source, a calling subscriber's switch connected to ...


9
Boysie M Goolcharan: Telecommunication system for transmitting full motion video. Christine Holland Trustee Goolcharan Trust, Charles H Thomas, February 1, 1994: US05283637 (141 worldwide citation)

An improved telecommunication system is provided which allows the transmission of full motion color video, voice and data over a communications link formed of a twisted pair of wires of the type currently utilized only for voice and data communications. The signal is transmitted over the twisted pai ...


10
Schoeffler Max S: Interactive computer graphics using video telephone. Bell Telephone Laboratories Incorporated, June 8, 1971: US3584142 (120 worldwide citation)

This disclosure relates to a simple method for a video telephone subscriber to interact with a remote time-shared computer in a typical computer graphics mode. The video camera image of a pencil beam of light, pointed in the area of view of the camera, is transmitted to a remote computer. The coordi ...