Application circuit and method for shaping noises

Details Application circuit and method for shaping noises Application circuit and method for shaping noises

2007-10-16

2007-10-16

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S144000, C341S145000, C341S118000

Reexamination Certificate

active

11407187

ABSTRACT:
An application circuit for shaping noises and method thereof involve an analog-to-digital converter which converts a first analog signal into an n-bit digital signal for an encoder to generate a p-bit digital signal. Then a control circuit generates a plurality of control signals based on the p-bit digital signal, wherein p is two to the power of n minus one, and n is an integer greater than one. Each of the (2n−1) unit elements with element mismatch in an internal n-bit digital-to-analog converter executes the digital to analog conversion in response to the corresponding control signal, thereby generating a second analog signal, and an adder outputs the first analog signal based on the second analog signal and a third analog signal.

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