1
Dachiku Kenshi C O Intellectua, Yamaguchi Shogo C O Intellectu, Ozeki Kazuo C O Intellectual P, Takahashi Katsumi C O Intellec, Omokawa Mitsunori C O Intellec, Kuratate Takaaki C O Intellect: Video encoder, video decoder, and video motion estimation apparatus.. Tokyo Shibaura Electric Co, September 7, 1994: EP0614318-A2 (126 worldwide citation)

A video coding apparatus insuring a high coding efficiency even at a low bit rate is provided. The apparatus comprises a moving object analyzer 2 which extracts a moving part from an input picture signal, analyzes its motion and outputs a residual signal relative to a reconstruction image and motion ...


2
Watanabe Hiroshi: Moving image encoder and decoder.. Nippon Telegraph & Telephone, November 23, 1994: EP0625853-A2 (96 worldwide citation)

A moving image encoder comprising: a contour extractor for dividing a local decoded image into a plurality of segments, and extracting contour information therein for each of an n number of frames, n being a natural number, in which encoding has been completed; a motion parameter extractor for extra ...


3
Oguro Masaki C O Sony Corporat: Digital signal processing apparatus.. Sony, August 17, 1994: EP0610587-A2 (91 worldwide citation)

Digital signal processing apparatus in which compressed frequency components of a digital signal are processed to selectively achieve fade-in, fade-out and scene change effects and where the digital signal is scrambled (and subsequently descrambled) in whole or in by scrambling (or descrambling) sel ...


4
Chung Hong Yang, Wang Jun Der, Wei Lee Fang: Multiplexed coded modulation with unequal error protection.. American Telephone & Telegraph, June 17, 1992: EP0490552-A2 (90 worldwide citation)

Unequal error protection is provided for an HDTV signal (101) by separately coding (in 120,130) each one of the classes of information (on 20,30) in the HDTV signal by using a conventional coded modulation scheme and then time-division-multiplexing (in 140) the various coded outputs for transmission ...


5
Wei Lee Fang: Coded modulation with unequal levels of error protection.. American Telephone & Telegraph, May 13, 1992: EP0485108-A2 (86 worldwide citation)

Digital signals, such as digitized television signals, are subjected to a source coding step in which a class of "most important" data elements represents a proportionately greater amount of the information to be communicated than the rest of the data elements. This is followed by a constellation ma ...


6
Murakami Yoshihiro C O Patent, Yoshinari Hiromi: Method and apparatus for variable length coding.. Sony, May 5, 1993: EP0540350-A2 (80 worldwide citation)

Luminance signal coefficient data and chroma signal coefficient data are mixed in a signal string mixing circuit and supplied to a reverse run generating circuit where a run is taken in a reverse direction with respect to the encoding direction. The run is supplied to a variable length encoding circ ...


7
Nagata Atsushi: Image coding method and image coding apparatus.. Matsushita Electric, February 3, 1993: EP0526163-A2 (80 worldwide citation)

In high efficiency coding of motion image signal in transmission or recording of the motion image signal, plural predict signals are determined by independently compensating a motion of reproduction signals of plural frames positioned before a frame to be coded. A linear combination of these predict ...


8
Oshima Mitsuaki Katsura: Signal transmission system.. Matsushita Electric, September 30, 1992: EP0506400-A2 (80 worldwide citation)

At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into two, first and second, data streams. The signal points are divided into signal point groups to which data of the first da ...


9
Murashita Kimitaka C O Fujitsu, Noda Tsugio C O Fujitsu Limite: Image data coding and restoring method and apparatus for coding and restoring the same.. Fujitsu, March 23, 1994: EP0588653-A2 (79 worldwide citation)

When encoding the continuous image by dividing the respective frames into a plurality of blocks, the image in the block in the present frame is compared with a corresponding image in the block in the same position of the reference frame and the amount of the changes of the predetermined image elemen ...


10
Purcell Steven C, Galbi David E, Liao Frank H, Tse Yvonne C: Decompression of video signal.. C Cube Microsystems, September 16, 1992: EP0503956-A2 (77 worldwide citation)

A method and a structure are provided to decode intra-frame and interframe coded compressed video data. In one embodiment of the present invention, a decompression structure having a processor is provided with a global bus over which a decoder coprocessor, an inverse discrete cosine transform coproc ...