Canon Kabushiki Kaisha

Kunihiko Tabei

Hitoshi Yasuda

Yasuo Suzuki

Hisashi Kawai

Takayuki Komine

The electric apparatus includes first and second electrically driven elements operating in response to receipt of electric signals whose polarities reverse periodically at mutually same periods, and a signal outputter outputting the electric signals respectively to the first and second electrically driven elements. The first and second electrically driven elements are arranged such that each of their element surfaces faces toward the element surface of the other electrically driven element or such that their element surfaces face toward a same plane from mutually opposite sides across the plane. The signal outputter outputs the electric signals such that, in each period of the electric signals, a time period in which their polarities are mutually opposite is longer than a time period in which their polarities are mutually identical.

Electric apparatus, image projection apparatus and image capturing apparatus

A camera section for photographing an object to generate a video signal is connected via a cable to a video signal processing section that receives and processes the video signal. When the camera section is replaced with a different one, signals corresponding to the new camera section are automatically provided. A video signal, a synchronizing signal therefor, a clock signal, and control data are multiplexed on a signal line in the cable and the signal obtained is transmitted from the camera section to the video signal processing section, and control data is sent from the video signal processing section to the camera section. These control data are transmitted during a vertical interval of the video signal, and a DC voltage is supplied to the camera section from the video signal processing section via a shield line that is paired with the signal line in the cable.

Growing community of inventors

Utsunomiya, Japan

Kunihiko Tabei