US4550384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch system coordinates input apparatus
Assignee: Alps Alpine Co Ltd
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Filing: 1982-09-30
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Granted: 1985-10-29
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Expires: 2002-09-30
Abstract
Abstract An economical touch system coordinates input apparatus having high mechanical strength is disclosed. The coordinates input apparatus comprises a panel to which a push force is to be applied, a plurality of straining portions where component forces of the push force applied to the panel develop, detectors for detecting the strain developing at the straining portions, respectively, and calculation means for calculating the push point on the panel by means of the outputs of the detectors, wherein the panel is integral with the straining portions.
Inventors
- 👤 Kiyoshi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/0414; G06F3/04142; H; H01; H01H; H01H2239/00; H01H2239/052
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
99 words
A touch panel for determining the coordinates for the point of application of pressure thereto, comprising a panel adapted to receive a pressing force applied thereto, means including a plurality of unitary straining portions formed integrally with said panel for developing component forces corresponding to said pressing force, means including respective detectors connected integrally to each said straining portion for developing signals suitable for processing to determine the point of application of said pressing force to said panel, wherein said straining portions are formed by strips of said panel formed by providing slots in marginal portions in said panel.
Claim 2
Dependent Claim
99 words
A touch panel for determining the coordinates for the point of application of pressure thereto, comprising a panel adapted to receive a pressing force applied thereto, means including a plurality of unitary straining portions formed integrally with said panel for developing component forces corresponding to said pressing force, means including respective detectors connected integrally to each said straining portion for developing signals suitable for processing to determine the point of application of said pressing force to said panel, wherein said straining portions are formed by strips of said panel formed by providing slots in marginal portions in said panel.
Claim 3
Dependent Claim
21 words
A touch panel according to claim 1, said panel being rectangular and said straining portion being formed at corner portions thereof.
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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |