IR remote control transmitter with power saving feature
First Claim
Patent Images
1. A method of operating a remote control device comprising:
- generating IR commands in response to key closures;
timing all key closures; and
disabling the remote control device for the duration of a key closure that is maintained for more than a predetermined time period.
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Accused Products
Abstract
A remote control transmitter has a kill mode in which less power is drawn than in the full power operating mode. The transmitter has a stop mode in which minimal power is consumed. The stop mode is entered whenever no keys are being depressed. The device stays in the kill mode whenever a key closure is maintained for longer than a predetermined time.
36 Citations
10 Claims
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1. A method of operating a remote control device comprising:
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generating IR commands in response to key closures; timing all key closures; and disabling the remote control device for the duration of a key closure that is maintained for more than a predetermined time period. - View Dependent Claims (2, 3, 4)
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5. A method of operating an IR remote control transmitter having an operating mode requiring full power, a kill mode requiring less than full power and a stop mode requiring minimal power, comprising:
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entering the operating mode from the stop mode, responsive to a key closure for transmitting selected IR commands; entering the kill mode upon failure to release the key after a predetermined time; and returning to the stop mode upon release of the key. - View Dependent Claims (6)
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7. An IR remote control device comprising:
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keyboard means including a keypad for selecting control functions; IR code generation means for transmitting coded commands for performing said control functions; keyboard scanning means for determining a key closure on said keypad; a microprocessor for controlling said keyboard scanning means and said IR code generation means; and means for disabling said remote control device when a key is depressed for longer than a predetermined duration. - View Dependent Claims (8, 9, 10)
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Specification