Electrical pulse counters – pulse dividers – or shift registers: c – Charge transfer device – Particular input or output means
Patent
1985-11-01
1990-01-23
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Charge transfer device
Particular input or output means
377 58, 357 24, 357 30, 3072968, H01L 2978, G11C 1928
Patent
active
048963402
ABSTRACT:
An interface structure (14) for an hybrid infrared charge coupled device (10) or other signal processing system provides for partial direct injection of the output current of an incorporated detector (12) or other signal source into the incorporated CCD (11). The remaining output current is bypassed through a load resistor (R.sub.L) to a load voltage source (V.sub.L). An injection path resistor (R.sub.I) can be included to provide a voltage near the input threshhold bias of the CCD so that it operates in its linear region even at low detector outputs. The disclosed resistors can be conveniently fabricated using an additional polysilicon layer on either the detector or the CCD.
The disclosed interface structure makes effective use of the limited charge-handling capability of the CCD. It also makes possible the operation of the detector in an inverted mode to avoid saturation by bright scene objects. In addition, the higher available detector bias reduces crosstalk between detector elements.
REFERENCES:
patent: 3488528 (1970-01-01), Emand
patent: 3660697 (1972-05-01), Berglund et al.
patent: 4093872 (1978-06-01), Hartman et al.
patent: 4112316 (1978-09-01), Wentz
patent: 4156818 (1979-05-01), Collins et al.
patent: 4316103 (1982-02-01), Nathanson
patent: 4574384 (1986-03-01), Murata et al.
patent: 4590390 (1986-05-01), Azques
patent: 4606060 (1986-08-01), Klar et al.
patent: 4625322 (1986-11-01), Tukazaki et al.
patent: 4727560 (1988-02-01), Van Zanten et al.
Denson-Low Wanda K.
Duong Tai V.
Heyman John S.
Hughes Aircraft Company
Streeter William J.
LandOfFree
Partial direct injection for signal processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Partial direct injection for signal processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Partial direct injection for signal processing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-649476