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US 5,958,023 AGranted
Method for low power wireless keyboard that detects a host computer query for the state of a key then powers up to determine and transmit back the state of that key
AssigneeMicron Electronics, Inc.
InventorDean A. Klein
Life of this patent
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Abstract
A method of determining the state of a keyboard key is disclosed. First, a signal that identifies at least one keyboard key is transmitted. Then, the signal is detected. Next, at least one keyboard electrical component is powered up. Then, a signal that contains the state of the at least one keyboard key is transmitted. Finally, power is removed from the at least one keyboard electrical component.
Claims20
A method of determining the state of a keyboard key comprising:
- (a) transmitting a wireless first signal that identifies at least one keyboard key;
- (b) detecting the first signal;
- then
- (c) providing power to at least a keyboard demodulator;
- (d) transmitting a wireless second signal that contains the state of the at least one keyboard key;
- and
- (e) removing power from at least a keyboard demodulator.
4 more elements
A method of determining the state of a keyboard key comprising:
- (a) transmitting a wireless first signal that identifies at least one keyboard key;
- (b) detecting the first signal;
- then
- (c) providing power to at least a keyboard demodulator;
- (d) determining the state of the at least one keyboard key;
- (e) transmitting a wireless second signal that contains the state of the at least one keyboard key;
- and
- (f) removing power from at least a keyboard demodulator.
5 more elements
A method of determining the state of a keyboard key comprising:
- (a) transmitting a wireless first signal that identifies at least one keyboard key;
- (b) detecting the first signal;
- then
- (c) providing power to at least a keyboard demodulator;
- (d) determining the state of the at least one keyboard key;
- (e) if the state of the at least one keyboard key is different from a previously stored state of the at least one keyboard key, then transmitting a wireless second signal that contains the state of the at least one keyboard key;
- (f) storing the state of the at least one keyboard key;
- and
- (g) removing power from at least a keyboard demodulator.
6 more elements
Dependencies are inferred from the claim text.