US5298918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit for reducing the energy consumption of a pointing device used in combination with a data processing system
Assignee: Individual
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Filing: 1991-11-13
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Granted: 1994-03-29
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Expires: 2011-11-13
Abstract
Abstract An electric circuit is to be incorporated in a pointing device (such as a computer mouse) which is used in combination with a data processing system (such as a computer) so as to reduce the energy consumption of the pointing device without affecting the original functions and efficiency thereof and thus permit the pointing device to fit into a system wherein electric consumption is of vital importance. The electric circuit includes a timing control circuit and a noise-suppressing sampling circuit which controls the operation of the energy consuming elements of the pointing device according to the movement of the pointing device. The noise-suppressing circuit can distinguish movement signals from noise signals, thus suppressing the interference due to noise and further reducing the energy consumed by the pointing device.
Inventors
- 👤 Chiu Yen-Chen
- 👤 Chang Chi-Chun
- 👤 Hwang Jyn-Guo
- 👤 Wu Yu-Kun
- 👤 Tai Jui-Chiang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:28
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/038; G06F3/0383; G06F1/00; G06F1/26; G06F1/32; G06F1/3203; G06F1/3206; G06F1/3215; G06F1/3234; G06F1/325; G06F1/3259; Y; Y02; Y02D; Y02D10/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An electric circuit for a pointing device comprising: a movable part; means for generating a movement signal corresponding to a movement of said movable part; means for sampling said movement signal; means for distinguishing said movement signal from a noise signal; said means for distinguishing including means for generating a displacement signal only during a non-occurrence of said noise signal during an occurrence of said movement signal; means for producing a first signal and a second signal based on said displacement signal; means, responsive to said first signal, for intermittently and variably connecting a voltage to said mans for generating; and said means for sampling including means for controlling a sampling action based on said second signal.
Claim 2
Dependent Claim
117 words
An electric circuit for a pointing device comprising: a movable part; means for generating a movement signal corresponding to a movement of said movable part; means for sampling said movement signal; means for distinguishing said movement signal from a noise signal; said means for distinguishing including means for generating a displacement signal only during a non-occurrence of said noise signal during an occurrence of said movement signal; means for producing a first signal and a second signal based on said displacement signal; means, responsive to said first signal, for intermittently and variably connecting a voltage to said mans for generating; and said means for sampling including means for controlling a sampling action based on said second signal.
Claim 3
Dependent Claim
24 words
An electric circuit as claimed in claim 1, wherein said means for sampling performs said sampling action at an end of said first signal.
Claim 4
Dependent Claim
82 words
A pointing device comprising: a movable part; means for generating a movement signal responsive to a movement of said movable part; means for sampling said movement signal to produce a sampled signal; means for producing a direction signal and a displacement signal, responsive to said sampled signal; means for controlling said means for generating and means for sampling, responsive to said displacement signal; and said means for controlling including means for intermittently and variably connecting a voltage to said means for generating.
Claim 5
Dependent Claim
82 words
A pointing device comprising: a movable part; means for generating a movement signal responsive to a movement of said movable part; means for sampling said movement signal to produce a sampled signal; means for producing a direction signal and a displacement signal, responsive to said sampled signal; means for controlling said means for generating and means for sampling, responsive to said displacement signal; and said means for controlling including means for intermittently and variably connecting a voltage to said means for generating.
Claim 6
Dependent Claim
17 words
A pointing device as claimed in claim 3, further comprising an electric power source producing said voltage.
Claim 7
Dependent Claim
20 words
A pointing device as claimed in claim 3, wherein said means for controlling includes means for generating a control signal.
Claim 8
Dependent Claim
32 words
A pointing device as claimed in claim 5, wherein: said means for controlling includes a switch; and said switch, responsive to said control signal, connects said voltage to said means for generating.
Claim 9
Dependent Claim
27 words
A pointing device as claimed in claim 5, wherein said means for sampling includes means for performing a sampling action at an end of said control signal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-28 | 1997-09-27 | 1998-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-28 | 2001-09-27 | 2002-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-28 | 2005-09-27 | 2006-03-29 | $7700.00 | Window Closed / Lapsed |