1
Yuichi Ninomiya, Yoshimichi Ohtsuka: Motion-compensated interframe coding system. Nippon Hoso Kyokai, Stevens Davis Miller & Mosher, December 22, 1981: US04307420 (65 worldwide citation)

An interframe coding system provided for highly efficient transmission of coded television picture signal is improved by compensating prediction error of predicted picture motion in response to interframe correlation detected by shifting moving blocks in a direction opposite to a motion vector detec ...


2
Yuichi Ninomiya, Yoshimichi Ohtsuka, Yoshinori Izumi, Sei ichi Goushi: Bandwidth compressed transmission system. Nippon Hoso Kyokai, Spencer & Frank, September 8, 1987: US04692801 (60 worldwide citation)

In a bandwidth compressed transmission system in which a frequency band of a television signal of 2:1 interlace system is compressed, on an encoder side, by interfield offset subsampling at a first sampling frequency corresponding to a substantially upper limit frequency of the television signal and ...


3
Yoshiaki Shishikui, Yukihiro Nishida, Eisuke Nakasu, Yoshimichi Ohtsuka, Hiroshi Nakanishi: Method of performing high efficiency coding of image signal and system therefor. Nippon Hoso Kyokai, Antonelli Terry Stout & Kraus, July 9, 1996: US05534927 (30 worldwide citation)

A system for performing high efficiency coding of an image signal includes a differential signal generating section, a processing section, a supply section, a coefficient train outputting section, and a code assigning section. The differential signal generating section generates a differential image ...


4
Masanori Hamada, Takeshi Inoue, Mitsuo Isobe, Yuichi Ninomiya, Yoshimichi Ohtsuka, Yoshinori Izumi: Receiving system for band-compression image signal. Matsushita Electric Industrial, Stevens Davis Miller & Mosher, January 2, 1990: US04891699 (28 worldwide citation)

When the receiving system for a band-compression image signal receives a dropout signal representing a dropout portion of an image signal, an output of the third delay circuit of the temporal filter for motion detection processing, that is, motion information of an image signal, which precedes by on ...


5
Yuichi Ninomiya, Yoshimichi Ohtsuka, Yoshinori Izumi, Seiichi Gohshi, Yoshiaki Shishikui: Motion detection circuit. Nippon Hoso Kyokai, Antonelli Terry & Wands, November 28, 1989: US04884136 (27 worldwide citation)

The motion detection circuit is so constructed that an interframe difference signal is passed through a horizontal direction LPF and a vertical direction LPF in cascade connection, and the interframe difference signal thus obtained is divided by the value obtained by mixing an edge signal of an imag ...


6
Hiromu Kitaura, Mitsuo Isobe, Yuichi Ninomiya, Yoshimichi Ohtsuka, Yoshinori Izumi: Automatic gain control device. Matsushita Electric Industrial, Nippon Hoso Kyokai, Stevens Davis Miller & Mosher, October 16, 1990: US04963969 (22 worldwide citation)

Disclosed is an automatic gain control device which comprises: a first amplitude detection circuit for detecting an average amplitude value of a television video signal, a peak amplitude value of the same television video signal, or a value obtained by mixing the average amplitude value and the peak ...


7
Yutaka Tanaka, Taiji Nishizawa, Yuichi Ninomiya, Toshiro Ohmura, Taiichiro Kurita, Yoshimichi Ohtsuka: TV system conversion apparatus. Nippon Hoso Kyokai, Parkhurst & Oliff, May 5, 1987: US04663665 (19 worldwide citation)

The picture quality deterioration such as judder caused by TV frame number conversion can be mitigated by selecting either the stationary original picture signal or the motion-compensated interpolated picture signal based on the most adaptive motion vector corresponding to the smallest interframe di ...


8
Yuichi Ninomiya, Yoshimichi Ohtsuka: Noise reduction apparatus. Nippon Hoso Kyokai, Parkhurst & Oliff, February 19, 1985: US04500911 (19 worldwide citation)

A noise reduction apparatus for reducing noises contained in a television picture signal is realized by comprising a low pass filter for filtering out noise components together with higher frequency components of the picture signal, the latter being compensated thereafter in response to detection of ...


9
Kunio Matsumoto, Akira Furutani, Yutaka Tanaka, Toshiro Ohmura, Taiichiro Kurita, Yoshimichi Ohtsuka, Taiji Nishizawa, Yuichi Ninomiya: Apparatus for compensating a movement of a picture of television signal. Sony Corporation, Lewis H Eslinger, Alvin Sinderbrand, March 15, 1988: US04731651 (19 worldwide citation)

Image movement correction is provided in a field conversion television system by deriving simultaneously two fields of a selected number of lines from an original single field and vertically shifting one of the derived fields by 0.5 lines. A movement vector is determined for each field and movement ...


10
Yuichi Ninomiya, Yoshimichi Ohtsuka, Yoshinori Izumi: Divisionally time-compressed subsample transmission and motion-compensated reproduction system for a high definition color television picture signal. Nippon Hoso Kyokai, Parkhurst & Oliff, May 17, 1988: US04745459 (18 worldwide citation)

A high definition color television picture signal is unified by time-axis compressed integration (TCI) and the bandwidth thereof is extremely narrowed by dot-interlace subsampling. As a result, a narrow band transmission picture signal accompanied with a control signal adapted to the restoration of ...