MULTIMEDIA APPARATUS HAVING FUNCTION OF DETECTING VIDEO SIGNAL CONNECTION
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United States of America Patent
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Issued Date -
Jun 30, 2011
app pub date -
Dec 16, 2010
filing date -
Dec 31, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multimedia apparatus has a function of detecting video signal connection. The multimedia apparatus includes plural video output terminals. The user may selectively connect one of the video output terminals with a TV set. The analog video signal outputted from the video output terminal is detected by a detector. In a case that the connection between the first video output terminal and the TV set is interrupted but the second video output terminal is connected with the TV set, the detector issues control signal. According to the control signal, a first digital-to-analog converter is disabled to stop outputting a first analog video signal through the first video output terminal, and a second digital-to-analog converter is enabled to output a second analog video signal through the second video output terminal.
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