Integrated circuit configurations and methods for providing...

Details Integrated circuit configurations and methods for providing... Integrated circuit configurations and methods for providing...

2007-07-03

2007-07-03

Harold, Jefferey (Department: 2614)

Telephonic communications

Substation or terminal circuitry

C379S387010, C379S388060

Reexamination Certificate

active

09897714

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.

REFERENCES:
patent: 5557670 (1996-09-01), Perry et al.
patent: 6728366 (2004-04-01), Barkaro et al.

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