06353711 is referenced by 32 patents and cites 6 patents.

A flash control system remotely controls a an external flash by a camera. In the camera, a first factor is calculated to determine an amount of a flash-light to be emitted from a built-in flash of the camera, and a second factor to determine an amount of a flash-light to be emitted from the external flash, a total amount of both the flash-light emissions of the flashes corresponding to a proper exposure with which an object should be photographed. The built-in flash emits two light signals therefrom at a time interval such that the second factor is represented by the time interval between the signals. An amount of the flash-light emission of the external flash is controlled according to the time interval such that the flash-light amount of the external flash coincides with the second factor.

Title
External flash control system
Application Number
9/531476
Publication Number
6353711 (B1)
Application Date
March 20, 2000
Publication Date
March 5, 2002
Inventor
Masahiro Kawasaki
Saitama
US
Norio Numako
Tochigi
US
Agent
Greenblum & Bernstein
US
Assignee
Asahi Kogaku Kogyo Kabushiki Kaisha
US
IPC
G03B 17/02
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