Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2007-11-13

2007-11-13

Nguyen, Khai M. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000, C330S009000, C348S241000, C348S243000

Reexamination Certificate

active

11494517

ABSTRACT:
There is a need for providing a variable amplifier circuit suited for a semiconductor integrated circuit and a high-performance camera preprocessing LSI using the variable amplifier circuit. At first timing, a first input capacitor acquires a first signal. An amplifier circuit amplifies a second signal acquired to the second input capacitor according to a gain corresponding to a capacity ratio between the second input capacitor and a feedback capacitor composed of a variable capacitor device. At second timing, the second input capacitor acquires a second signal. The amplifier circuit amplifies the first signal according to a gain corresponding to a capacity ratio between the first input capacitor and the feedback capacitor. A variable gain amplifier circuit interleavingly amplifies the first signal and the second signal in synchronization with the first timing and the second timing.

REFERENCES:
patent: 6166367 (2000-12-01), Cho
patent: 6342919 (2002-01-01), Opris
patent: 6445331 (2002-09-01), Stegers
patent: 6529237 (2003-03-01), Tsay et al.
patent: 6587143 (2003-07-01), Boisvert
patent: 6897720 (2005-05-01), Fujimoto
patent: 7088273 (2006-08-01), Perdoor et al.
patent: 2002-542679 (2002-12-01), None

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3866533