POWER-SAVING INPUT DEVICE AND POWER-SAVING METHOD FOR SUCH INPUT DEVICE
First Claim
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1. A power-saving input device, comprising:
- a casing;
a luminance sensor disposed on a surface of said casing for detecting an ambient luminance value in an environment of said power-saving input device; and
a controlling circuit connected with said luminance sensor and storing a first predetermined time and a predetermined luminance value, wherein if said power-saving input device has been idle for a time period greater than said first predetermined time, said controlling circuit determines whether said power-saving input device enters a deep sleep mode or a first shallow sleep mode by comparing said ambient luminance value with said predetermined luminance value, wherein if said ambient luminance value is lower than said predetermined luminance value, said power-saving input device enters said deep sleep mode, wherein if said ambient luminance value is higher than said predetermined luminance value, said power-saving input device enters said first shallow sleep mode.
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Abstract
A power-saving method for an input device is provided. The power-saving method includes steps of: counting an idle time of the input device, judging whether an ambient luminance value in an environment of the input device is detected or not according to the idle time of the input device, and allowing the input device to enter a first shallow sleep mode or a deep sleep mode by judging whether the ambient luminance value is higher than or lower than a predetermined luminance value.
17 Citations
16 Claims
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1. A power-saving input device, comprising:
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a casing; a luminance sensor disposed on a surface of said casing for detecting an ambient luminance value in an environment of said power-saving input device; and a controlling circuit connected with said luminance sensor and storing a first predetermined time and a predetermined luminance value, wherein if said power-saving input device has been idle for a time period greater than said first predetermined time, said controlling circuit determines whether said power-saving input device enters a deep sleep mode or a first shallow sleep mode by comparing said ambient luminance value with said predetermined luminance value, wherein if said ambient luminance value is lower than said predetermined luminance value, said power-saving input device enters said deep sleep mode, wherein if said ambient luminance value is higher than said predetermined luminance value, said power-saving input device enters said first shallow sleep mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power-saving method for an input device, said power-saving method comprising steps of:
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counting an idle time of said input device; judging whether an ambient luminance value in an environment of said input device is detected or not according to said idle time of said input device; and allowing said input device to enter a first shallow sleep mode or a deep sleep mode by judging whether said ambient luminance value is higher than or lower than a predetermined luminance value, wherein if said ambient luminance value is lower than said predetermined luminance value, said input device enters said deep sleep mode, wherein if said ambient luminance value is higher than said predetermined luminance value, said input device enters said first shallow sleep mode. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification