Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2007-05-04
2008-08-19
Jeanglaude, Jean B (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C341S172000, C375S232000, C375S350000, C375S372000, C340S539120
Reexamination Certificate
active
07414560
ABSTRACT:
A wireless communication device reduces undesired audio underflow in a digital to analog receive path that employs time domain isolation. One or more buffers in the receive path receive processed audio samples from a signal processor. A control circuit senses when the buffers in the receive path are substantially empty. In response to a substantially empty determination by the control circuit, the control circuit instructs one of the buffers to repeat the last processed audio sample which that buffer received to reduce or avoid audio underflow.
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Anderton David O.
Chen Shaojie
Quddus Wasim
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