Hitachi Denshi Kabushiki Kaisha

Hitachi, Ltd.

Shin-kobe Electric Machinery Co., Ltd.

Nippon Hoso Kyokai (the Japan Broadcasting Corporation)

Fumio Ukigaya

Keinosuke Murakami

Gou Kawamura

Akira Aoki

Kotaro Wakui

Takao Kikuoka

Noriyoshi Sasaki

Hiroshi Noguchi

Kazunori Ohnishi

Hiroaki Yamamoto

An image distortion correcting apparatus for a television camera. In addition to an analogue correcting waveform, four corner independent distortion correcting waveforms are employed for rough adjustment together with a digital distortion correcting signal serving for fine adjustment. These waveforms are combined to be utilized for correcting image distortion from which the television camera suffers. A high-accuracy correction of image distortion can be accomplished with a circuit configuration of a small scale.

Image distortion correcting apparatus for television camera combining

A system for measuring the state of charge of a storage battery is disclosed which corrects charging and discharge electrical quantities of the battery in view of temperature and charging efficiency of the battery, and the like to precisely measure the state of charge thereof by digital-operation. There is also disclosed a system correcting, by digital-operation, the variation in capacity of the battery due to the variation in life of the battery and/or the self-discharge thereof as well, to thereby measure the state of charge with higher precision.

System for measuring state of charge of storage battery

Growing community of inventors

Higashiyamato, Japan

Fumio Ukigaya