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US 2010/0134391 A1Published application
Standby Circuit and Method for a Display Device
AssigneeHimax Media Solutions, Inc.
InventorHui-Min Wang
Life of this patent
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Abstract
A standby circuit and method for a display device is disclosed. A detector detects voltage drop of the first termination resistor of a positive path of a clock channel, and the second termination resistors of a negative path. Upon detecting the voltage drop, a switch controller disconnects the positive path or the negative path that has the detected voltage drop, thereby saving power in the standby mode of the display device.
Claims15
A standby circuit for a display device, comprising:
- a positive switch connected between a first termination resistor and a positive path of a clock channel;
- a negative switch connected between a second termination resistor and a negative path of the clock channel;
- a detector that detects voltage drop of the first and the second termination resistors;
- and
- a switch controller that controls the positive and the negative switches according to an output of the detector, such that the positive switch or the negative switch that has the detected voltage drop is open by the switch controller, thereby saving power at a standby mode of the display device.
2 more elements
A standby method for a display device, comprising:
- detecting voltage drop of a first termination resistor of an associated positive path of a clock channel, and a second termination resistor of an associated negative path of the clock channel;
- and
- disconnecting the positive path or the negative path, the associated first or the second termination resistor of which has the detected voltage drop, thereby saving power at a standby mode of the display device.
Dependencies are inferred from the claim text.