Signaling dependent adaptive analog-to-digital converter...

Details Signaling dependent adaptive analog-to-digital converter... Signaling dependent adaptive analog-to-digital converter...

2005-03-08

2005-03-08

Williams, Howard L. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

C455S234100

Reexamination Certificate

active

06864817

ABSTRACT:
An adaptive analog-to-digital converter (ADC) system (100) includes an automatic gain control (AGC) controller (101) for receiving both in-band and out-of-band signals from a radio frequency (RF) receiver and producing an AGC control signal therefrom. A digital signal processor (DSP) (103) is then used for interpreting the AGC control signal and providing an adjustment signal to an ADC (105). The ADC (105) uses the adjustment signal to dynamically control efficiency of the ADC system100by adjusting bit resolution, reference capacitance and bias based upon the RF signal received and desired protocol requirements presented to the AGC controller (101).

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