Integrated circuit configurations and methods for providing functions for public telephones
AssigneeProtel, Inc.
InventorGary Lee Stirk
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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.
Claims14
An integrated circuit for use with public telephones to provide standard telephone functions, the integrated circuit configuration comprising:
- first channel means for providing a transmit multiplexing control;
- and
- second channel means for providing a receive multiplexing control.
The integrated circuit recited in claim 2, further comprising one-wire compatible user interface means.
A method for controlling standard functions for a public telephone, comprising the steps of:
- providing an integrated circuit;
- configuring the integrated circuit with first channel means for providing a transmit multiplexing control and second channel means for providing a receive multiplexing control for audio inputs;
- configuring the integrated circuit to include both audio and bitstream inputs.
Dependencies are inferred from the claim text.