Electrical pulse counters – pulse dividers – or shift registers: c – Charge transfer device – Direction and/or path flow control
Patent
1985-05-28
1988-03-22
Munson, Gene M.
Electrical pulse counters, pulse dividers, or shift registers: c
Charge transfer device
Direction and/or path flow control
377 58, 357 24, 357 30, 365183, G11C 1928, H01L 2978, H01L 2714, H01L 3100
Patent
active
047334061
ABSTRACT:
In order to clear at a high speed unwanted charge in a solid image sensing element of a charge transfer type, a potential barrier for allowing passage of excessive charge in the direction of the transfer of a CCD shift register, is provided. Also, in order to clear the charge of the CCD shift register via the barrier, an overflow drain is provided. Thus, the clearing action is effected at a high speed, and also, a blooming can be eliminated.
REFERENCES:
patent: 3876952 (1975-04-01), Weimer
patent: 3896474 (1975-07-01), Amelio et al.
patent: 4016550 (1977-04-01), Weimer
patent: 4229752 (1980-10-01), Hynecek
patent: 4245164 (1981-01-01), Funahashi
patent: 4389661 (1983-06-01), Yamada
T. Tsukamoto, Fundamental of CCD and Application Thereof, Electronics (Japan), Apr. 1977, p. 365 at pp. 368-369.
Kinoshita Takao
Tanaka Nobuyoshi
Canon Kabushiki Kaisha
Munson Gene M.
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