Method and apparatus for monitoring/shutting down a power line within a display device
AssigneesSony Corporation, Sony Electronics Inc.
InventorsLIBIAO JIANG, TOSHIRO KAWATA
Life of this patent
Estimating the term…
Abstract
A method and apparatus for monitoring and/or shutting down a power line in, for example, a display device is described. In one embodiment, a method comprises converting a voltage on a power line to a digital value, comparing the digital value with a predetermined value, and shutting down a power supply if the digital value is below the predetermined value for a predetermined amount of time.
Claims19
A method for monitoring a power line contained within a display device, comprising:
- converting, by an analog-to-digital converter, a voltage of the power line to a digital value;
- comparing, by a microcontroller, the digital value with a predetermined value;
- and
- shutting down a power supply of the display device if the digital value is below the predetermined value.
An apparatus in a display device including a power supply that provides a voltage on a power supply line to one or more circuits in the display device, the apparatus, comprising:
- an analog-to-digital converter coupled to the power supply line to convert the voltage thereon to a digital value;
- and
- a controller coupled to the analog-to-digital converter and the power supply, the controller including a memory device having contained therein one or more instructions, said controller responsive to the one or more instructions to,
- read the digital value from the analog-to-digital converter,
- compare the digital value with a predetermined value, and
- shut down the power supply if the digital value is below the predetermined value.
A display device, comprising:
- a power supply to receive an alternative current signal and provide one or more voltages, including a first voltage on a power supply line;
- one or more functional circuits coupled to the power supply line;
- an analog-to-digital converter coupled to the power supply line to convert the voltage thereon to a digital value;
- and
- a controller coupled to the analog-to-digital converter and the power supply, the controller including a memory device having contained therein one or more instructions, said controller responsive to the one or more instructions to,
- read the digital value from the analog-to-digital converter,
- compare the digital value with a predetermined value, and
- shut down the power supply if the digital value is below the predetermined value.
Dependencies are inferred from the claim text.