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IEEE Transactions on Broadcasting | 1973

Characteristics of the Color TV Telephone

Yasuo Takemura; Daiki Nabeshima; Motoi Yagi

The new color TV telephone consists of a 12-in shadow-mask tube for color reception, a 3-in black and white picture tube for monitoring the transmitted image, and a camera lens. The push-button telephone is a separate unit.


Journal of the SMPTE | 1968

Color Video-Tape Recorder for Home Use

Hisao Tajiri; Shigeo Tanaka; Itsuzo Sato; Motoi Yagi; Norikazu Sawazaki

A system for home-use color video-tape recording, called the pilot NTSC system, has been developed. The recorder has been designed to avoid difficulties with frequency bandwidth, jitter, bulkiness and high cost of equipment. A method has been developed to fit the color signal of NTSC within the effective VTR bandwidth, recording it after frequency modulation and inverting it on the reproduction side to 3.58 MHz. A pilot signal has been used as a color standard to avoid jitter. Experimental results of the VTR are described.


Archive | 1964

Television telephone system utilizing one telephone line

Motoi Yagi; Norikazu Sawazaki; Tsutomu Honma


Archive | 1974

Endless tape-running apparatus

Norikazu Sawazaki; Hiroyuki Tsukamoto; Motoi Yagi


Archive | 1975

Magnetic recording and reproducing apparatus with grooved recording medium and tracking guide

Norikazu Sawazaki; Mamoru Kuriyagawa; Motoi Yagi


Archive | 1973

MAGNETIC HEAD HAVING A WEDGE SHAPED PROJECTION EXTENDING OVER VOID SPACE BETWEEN CORE HALVES

Motoi Yagi; Yoshihisa Kawamura


Archive | 1970

Color separating optical device

Motoi Yagi; Yasuo Takemura


Archive | 1974

APARELHO DE GRAVACAO E REPRODUCAO MAGNETICA UTILIZANDO UMA FITA SEM FIM

Norikazu Sawazaki; Hiroyuki Tsukamoto; Motoi Yagi


Archive | 1974

APARELHO DE ACIONAMENTO DE FITA SEM FIM

Norikazu Sawazaki; Hiroyuki Tsukamoto; Motoi Yagi


Archive | 1974

Magnetisches aufnahme- und wiedergabegeraet Magnetic receptive and wiedergabegeraet

Norikazu Sawazaki; Hiroyuki Tsukamoto; Motoi Yagi

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