Display unit with controller enabling bi-directional communication with computer
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United States of America Patent
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Apr 15, 2003
Issued Date -
N/A
app pub date -
Dec 8, 2000
filing date -
Feb 10, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A display unit having a communication control circuit for communicating with an externally connected computer and which enables bi-directional communication with the display unit and the computer. The communication control circuit includes a comparator for comparing first identification information which is previously stored in said display unit and second identification information which is previously stored in the computer and is sent from the computer. The communication control circuit further includes at least one of a communication prohibitor for prohibiting communication between the computer with respect to display control of the display unit, when the first and second identification information do not match as a result of the comparison by the comparator or communication permitter for enabling communication for display control as a result of a match.
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