Methods and apparatus for reduced hardware multiple variable...

Details Methods and apparatus for reduced hardware multiple variable... Methods and apparatus for reduced hardware multiple variable...

2008-05-06

2008-05-06

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S535000, C327S537000, C327S538000, C327S540000, C327S541000, C327S542000, C327S543000

Reexamination Certificate

active

07368975

ABSTRACT:
A circuit is described that generates multiple voltages each having a common reference point. The circuit uses a feedback control loop to generate a center voltage, a first voltage generator, and a second voltage generator. The first voltage generator generates a first high voltage related to the center voltage plus a first offset voltage and a first low voltage related to the center voltage minus the first offset voltage, where the first offset voltage is determined by a first control input to the first voltage generator. The second voltage generator generates a second high voltage related to the center voltage plus a second offset voltage and a second low voltage related to the center voltage minus the second offset voltage, where the second offset voltage is determined by a second control input to the second voltage reference generator. An example is also presented where the multiple voltage generator circuit is advantageously employed in a deserializer data acquisition system.

REFERENCES:
patent: 2005/0195000 (2005-09-01), Parker et al.
patent: 2006/0044049 (2006-03-01), Ouellette et al.
patent: 2006/0192598 (2006-08-01), Baird et al.
patent: 2006/0202744 (2006-09-01), Utsuno

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