Digital control system for electronic apparatus
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United States of America Patent
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-
Feb 14, 1989
Grant Date -
N/A
app pub date -
Jun 6, 1988
filing date -
Apr 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital control system for electronic apparatus employs an internal bus system and includes at least one master controller and a plurality of operational circuits connected via control bus lines so that, during normal operation of the electronic apparatus, the master controller can carry out predetermined control operations relative to the respective circuit blocks. During testing and/or adjustment, an auxiliary master control circuit is connected to the control bus lines in order to control the operational circuitry in place of the master control circuit, while holding the master control in the slave mode.
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