Patent US4887245A successfully refreshed from Google Patents.
US4887245A
Expired / Lapsed
US
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Coordinates input apparatus
Assignee: Canon Inc
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Filing: 1988-04-01
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Granted: 1989-12-12
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Expires: 2008-04-01
Abstract
Abstract A vibration which is input to a vibration propagating plate by a vibration pen is detected by vibration sensors attached at corner positions of the plate. This vibration is propagated as elastic waves in the vibration propagating plate and reaches the sensors. The coordinates of the vibration input point are calculated on the basis of the vibration propagating times corresponding to the detection signals from the sensors. The vibration sensors are come into pressure contact with the vibration propagating plate through a fluid like a grease having a high viscosity or consistency. Since such a fluid is filled in the space which is formed between the pressure contacting surfaces of the vibrator and vibration propagating plate, their coupling states are stable and the vibration and coordinates detecting characteristics can be uniformed every product.
Inventors
- 👤 Shigeki Mori
- 👤 Katsuyuki Kobayashi
- 👤 Shinnosuke Taniishi
- 👤 Kousuke Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:11
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/043; G06F3/0433; G06F3/033; G06F3/0354; G06F3/03545; Y; Y10; Y10S; Y10S367/00; Y10S367/907
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
115 words
A coordinates input apparatus comprising: vibration generating means for generating a vibration; a vibration propagating member for propagating the vibration generated by said vibration generating means by contacting said vibration generating means; a plurality of vibration detecting means each for detecting the vibration propagated by said vibration propagating member and for generating a detection signal; a spring member for urging each of said plurality of vibration detecting means into contact with said vibration propagating member through a fluid material with a predetermined viscosity; and position coordinates detecting means for detecting position coordinates of said vibration generating means contacting said vibration propagating member on the basis of the detection signal generated by said vibration detecting means.
Claim 2
Dependent Claim
115 words
A coordinates input apparatus comprising: vibration generating means for generating a vibration; a vibration propagating member for propagating the vibration generated by said vibration generating means by contacting said vibration generating means; a plurality of vibration detecting means each for detecting the vibration propagated by said vibration propagating member and for generating a detection signal; a spring member for urging each of said plurality of vibration detecting means into contact with said vibration propagating member through a fluid material with a predetermined viscosity; and position coordinates detecting means for detecting position coordinates of said vibration generating means contacting said vibration propagating member on the basis of the detection signal generated by said vibration detecting means.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, further having display means for displaying the coordinates of the position detected by said position coordinates detecting means.
Claim 4
Dependent Claim
41 words
An apparatus according to claim 1, wherein a coefficient of kinematic viscosity of said fluid material of the predetermined viscosity is set to a value within a range from 10,000 to 1,000,000 [centistokes: cSt] (from 0.01 to 1 [m 2 /sec]).
Claim 5
Dependent Claim
72 words
A coordinates input apparatus having vibration generating means for generating a vibration and vibration detecting means for detecting and vibration generated by said vibration generating means and input to a vibration propagating member wherein position coordinates of a vibration detection point are detected, wherein said apparatus further comprises a spring member for urging said vibration detecting means into contact with a vibration propagating member through a fluid material having a predetermined viscosity.
Claim 6
Dependent Claim
72 words
A coordinates input apparatus having vibration generating means for generating a vibration and vibration detecting means for detecting and vibration generated by said vibration generating means and input to a vibration propagating member wherein position coordinates of a vibration detection point are detected, wherein said apparatus further comprises a spring member for urging said vibration detecting means into contact with a vibration propagating member through a fluid material having a predetermined viscosity.
Claim 7
Dependent Claim
41 words
An apparatus according to claim 4, wherein a coefficient of kinematic viscosity of said fluid material of the predetermined viscosity is set to a value within a range from 10,000 to 1,000,000 [centistokes: cSt] (from 0.01 to 1 [m 2 /sec]).
Claim 8
Dependent Claim
72 words
A coordinates input apparatus having vibration generating means for generating a vibration and vibration detecting means for detecting the vibration generated by said vibration generating means and input to a vibration propagating member wherein position coordinates of a vibration detection point are detected, wherein said apparatus further comprises a spring member for urging said vibration generating means into contact with said vibration propagating member through a fluid material having a predetermined viscosity.
Claim 9
Dependent Claim
72 words
A coordinates input apparatus having vibration generating means for generating a vibration and vibration detecting means for detecting the vibration generated by said vibration generating means and input to a vibration propagating member wherein position coordinates of a vibration detection point are detected, wherein said apparatus further comprises a spring member for urging said vibration generating means into contact with said vibration propagating member through a fluid material having a predetermined viscosity.
Claim 10
Dependent Claim
41 words
An apparatus according to claim 6, wherein a coefficient of kinematic viscosity of said fluid material of the predetermined viscosity is set to a value within a range from 10,000 to 1,000,000 [centistokes: cSt] (from 0.0l to 1 [m 2 /sec]).
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) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |