Computer peripheral device control and communication system
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United States of America Patent
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-
Jan 14, 1992
Issued Date -
N/A
app pub date -
Nov 8, 1988
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for communication between a computer and peripheral devices. The computer is made to generate long duration, synchronous, bi-phase binary coded electrical signals that can be shaped and amplified and then used to modulate a high frequency infrared light beam. Video and audio tape motion counts or electrical signal frequency counts can be read by the computer through the mouse port. Two pulse trains that change relative phase with a change in tape motion direction can be used to record motion counts and determine the direction of motion.
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