Nippon Hoso' Kyokai

Kabushiki Kaisha Toshiba

Ryoichi Yajima

Yutaka Tanaka

Taiichiro Kurita

Taiji Nishizawa

Kazumasa Enami

Shoichi Suzuki

Yoshinori Izumi

Seiichi Gohshi

Junji Kumada

Kazuhiko Shibuya

Isao Kondo

Makoto Okui

Yasuaki Kanatsugu

Minoru Honda

Haruo Okuda

Hisakazu Kato

Yuji Konno

Nobuyuki Yagi

Yoshio Takeuchi

Kaoru Watanabe

Yukihiro Nishida

Toshiyuki Takegahara

Hideki Suganami

Yuichi Iwadate

Satoru Koizumi

Nobuyuki Sasaki

Ichiro Yuyama

Makoto Tadenuma

Jun'ichi Ishida

Hiroyuki Hamazumi

Sumio Yano

Toshihiko Susaki

Shigemi Mikami

Kiyomasa Kanai

Kazuhiro Harukawa

Kouji Hoshino

High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modulate at least a first sub-carrier signal. The first sub-carrier is frequency interleaved onto the standard broadcast signal. Vertical high resolution components are time compressed and time division multiplexed onto top and bottom portions of the standard broadcast signal. The modified broadcast signal can be decoded by a standard receiver to display a standard resolution video image, while receivers designed to decode the modified signal can time division demultiplex the vertical high resolution components and demodulate the horizontal high resolution components, combine these components with the standard components, and generate a high definition video image.

Receiver and channel compatible encoding/decoding system for high

A signal transmission system for high definition television that can handle a second television signal which is superior in quality to a first television signal such as an NTSC (National Television System Committee) television signal. The transmitting end of the system transmits a first television signal including a video signal, audio signals, etc., through a main transmission line, as well as a third television signal including a high definition components obtained as the difference between the second and the first television signal through an auxiliary transmission line. The receiving end of the system receives and synthesizes the first television signal transmitted through the main transmission line and the third television signal transmitted through the auxiliary transmission line to produce the second television signal.

Signal transmission system for high definition television

A multiple sub-sampling encoding/decoding system performing interfield and interframe offset sub-sampling of a broad bandwidth television signal. The system compresses the television signal to fit, for example, to the transmission bandwidth of the standard television systems, compensates the transmission characteristics, and achieves the optimal frequency allocation of the modulated transmission signal.

Multiple sub-sampling transmitting/receiving system performing

In a digital video signal processing system disclosed, a plurality of programmable processor units (21(01) to 21(16)) each receive two different video signals, process the video signal in accordance with a program, and output the result of the signal processing. A network section (20) receives the output data signals from the plurality of programmable processor units (21(01) to 21(16)) and a plurality of video signals (A1, A2) from exterior, and supplies the received signals to the plurality of programmable processor units (21(01) to 21(16)), and leadouts any one of the produced signals or input video signals. The network section (20) is capable of freely altering a connection pattern of the plurality of programmable processor units (21(01) to 21(16)). The programmable processor units (21(01) to 21(16)) may have signal processing functions as defined by applied programs.

Digital video signal processing system

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Tokyo, Japan

Ryoichi Yajima