Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2007-04-17
2007-04-17
Jeanglaude, Jean Bruner (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S155000, C341S156000
Reexamination Certificate
active
11007057
ABSTRACT:
A pipelined analog to digital converter (ADC) that is arranged to dynamically adapt its resolution and sampling frequency based on at least a determined mode of communication and the strength of a received wireless signal. Since standby mode data is typically communicated with a relatively low number of bits (low resolution), the ADC provides for disabling at least a portion of its pipelined stages that provide the higher resolution bits if the standby communication mode is detected. By lowering the ADC's resolution for standby mode communication, it can conserve a considerable amount of power associated with the operation of the higher resolution bits. Similarly, relatively high resolution communication such as receiving and transmitting data and/or voice is process by the ADC by enabling sufficient pipelined stages to provide a higher number of bits.
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Darby & Darby PC
Gaffney Matthew M.
Jeanglaude Jean Bruner
National Semiconductor Corporation
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