Texas Instruments Corporation

Thomas E Merrow

Edward R Caudel

Stephen P Hamilton

Larry L Miles

Charles P Grant, Jr, Deceased

William R Wilson

A transceiver includes a keyboard having a plurality of manually actuable keys for selecting operating modes and channels for operating thereon. A first digital processor has inputs coupled to the keyboard for receiving logic signals therefrom of a first format identifying the keys which are manually actuated. In response thereto, the first digital processor generates bit serial messages of a second format indicating the manually chosen operating mode and channel. A second digital processor has inputs coupled to receive the bit serial messages. In response thereto, the second digital processor generates a plurality of micro commands. A clocking signal generator circuit and switching circuit are coupled to receive the micro commands to control the transceiver.

Dual digital processor transceiver

An electronic calculator or microprocessor system of the type preferably having keyboard input and a visual display is implemented with a semiconductor chip having a arithmetic unit and memory system. The arithmetic unit and memory system include a plurality of operational registers and an arithmetic unit having two inputs and an output. A plurality of operational registers selector gates interconnect the operational registers and arithmetic unit for connecting any selected two of the plurality of operational registers to the inputs of the arithmetic unit. The plurality of operation register selector gates preferably comprise individual MOS transfer gates.

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Dallas, TX, United States of America

Thomas E Merrow