Loopback transmission testing in a communications device

Pulse or digital communications – Testing

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375221, 370249, 370224, 379 5, H04B 1700

Patent

active

059533722

ABSTRACT:
A circuit and technique whereby loopback testing is performed in a serial communications device by concurrently transmitting from and receiving data into a single FIFO storage unit. The circuit includes a transmitter, a receiver, a single FIFO, operatively connected to both the transmitter and the receiver, for storing both transmitted and received data at the end of a loopback test. The circuit may be part of a transceiver which may in turn be part of an infrared communications controller installed in a personal computer.

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