Information transmitting apparatus using flash light emission

Details Information transmitting apparatus using flash light emission Information transmitting apparatus using flash light emission

1999-08-30

2000-12-26

Perkey, W. B.

Photography

Having wireless remote control circuit

Camera system data/mode entry

396157, 396173, 315241P, 359142, G03B 1505, H05B 3700, H04B 1000

Patent

active

061671991

ABSTRACT:
In an information transmitting apparatus capable of transmitting information by using flash light emission of a flash light emission tube, communication data is detected at timing synchronized with a predetermined period and, when the detected communication data indicates a light emission instruction, a predetermined light emission signal is formed and outputted to cause the flash light emission tube to make light emission, wherein a time interval from a point of time at which the light emission instruction has been detected to a point of time at which the light emission signal is outputted is varied according to a time interval from a point of time at which the preceding light emission has been performed to a point of time at which the light emission instruction for the current light emission is detected, so that the intervals of flash light emission are adjusted.

REFERENCES:
patent: 4048540 (1977-09-01), Iida et al.
patent: 5384611 (1995-01-01), Tsuji et al.
patent: 5446512 (1995-08-01), Makoto Mogamiya
patent: 5491533 (1996-02-01), Sakamoto
patent: 5668445 (1997-09-01), Matsui
patent: 6034486 (2000-03-01), Fukui
Patent Abstracts of Japan JP 04 343336 A, published Nov. 11, 1992, vol. 017, No. 197 (P-1523).
Patent Abstracts of Japan JP 05 019336A, published Jan. 29, 1993, vol. 017, No. 290 (P-1549).

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