Integrated circuit configurations and methods for providing functions for public telephones
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 3, 2007
Grant Date -
May 9, 2002
app pub date -
Jul 2, 2001
filing date -
Jun 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Circuit configurations designed for use with public telephones to provide standard telephone functions with higher reliability, lower cost, and lower packaging densities, include first and second channel means for providing both transmit and receive multiplexing control, a one-wire compatible user interface, and embedded PIC microcontroller for both digital control and monitoring of analog measurement and multiplexing circuits, and bitstream format conversion techniques.
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