Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1985-04-09
1986-12-30
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250370, 323312, H01L 2714
Patent
active
046330860
ABSTRACT:
A method and circuit are provided for interfacing an infrared detector to a common power supply and signal processing circuitry. A multichannel input circuit including a plurality of buffer circuits and a common bias network is formed on a single semiconductor substrate. The common bias network reduces the necessary connections between the substrate and the external power supply. The bias network is operative to reduce power level variations in the signal from the external power supply. Each channel includes a negative feedback circuit to maintain a dedicated detector in a zero bias condition, thus reducing 1/f noise and enhancing the signal-to-noise ratio of the circuit. The load to each channel is adjustable to maintain the detector in the zero bias condition.
REFERENCES:
patent: 3787668 (1974-01-01), Currie et al.
patent: 3970875 (1976-07-01), Leehan
patent: 3975648 (1976-08-01), Tobey, Jr. et al.
patent: 4004148 (1977-01-01), Howard et al.
patent: 4007415 (1977-02-01), Toyoda
patent: 4045675 (1977-08-01), Kingsley et al.
patent: 4054797 (1977-10-01), Milton et al.
patent: 4064448 (1977-12-01), Eatock
patent: 4115692 (1978-09-01), Balcerak
patent: 4152595 (1979-05-01), Garfinkel et al.
patent: 4179691 (1979-12-01), Keller
patent: 4243885 (1981-01-01), Agouridis et al.
patent: 4257957 (1981-03-01), Cheung
patent: 4303861 (1981-12-01), Ekstrom
patent: 4418335 (1983-11-01), Genahr
patent: 4431920 (1984-02-01), Srour
patent: 4435652 (1984-03-01), Stevens
patent: 4499416 (1985-02-01), Koike
Infrared Detectors, "Detectivity and Preamplifier Considerations for Indium Antimonide Photovoltaic Detectors", G. R. Pruett and R. L. Petritz, Hallsted Press (1959), pp. 1524-1529.
Electronics, 2/3/77, pp. 96-100.
Grumman Aerospace Corporation
Hannaher Constantine
Howell Janice A.
LandOfFree
Input circuit for infrared detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Input circuit for infrared detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Input circuit for infrared detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1548717