Error correction method and apparatus

Details Error correction method and apparatus Error correction method and apparatus

2009-02-26

2010-11-02

Lauture, Joseph (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07825846

ABSTRACT:
A switched current source is provided. The switched current source is generally comprised of transistors and resistors, and the source has a high output impedance. Included with the switched current source is an error correction transistor and a resistor that cooperate to feed a current back through a bias transistor to correct an error that generally results from the current gains or β's of transistors within the switched current source. To accomplish this, however, the resistor is selected to have a value that is sufficiently large such that current from the error correction transistor flows back through the bias transistor.

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