Patent US3779570A successfully refreshed from Google Patents.
Patent US4983787A successfully refreshed from Google Patents.
US4983787A
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US
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Coordinate input unit
Assignee: KOKOKU RUBBER TECHNOLOGIES Inc 13-13 HIGASHI UENO 1-CHOME TAITO-KU TOKYO JAPAN
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Filing: 1988-08-10
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Granted: 1991-01-08
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Expires: 2008-08-10
Abstract
Abstract The coordinate input unit is provided with a coordinate input pad in which one or more pairs of sheet-like electrodes for a function switch held by a pressure-sensitive electroconductive sheet having weighed input sensitivity different from that of another pressure-sensitive, electroconductive sheet, is laminated on a pair of flexible, sheet-like electrode groups for coordinate input having a plural number of electrodes in accordance with the pressing position, and which is held by the latter pressure-sensitive, electroconductive sheets. The described coordinate input unit allows to perform several input operations of coordinate input and using several function switches using only one hand.
Inventors
- 👤 Takahiro Kunikane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:16
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/045
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
98 words
A coordinate input unit for converting and detecting a pressing position in accordance with the coordinate to be applied into an electric signal, said coordinate input unit comprising a coordinate input pad in which one or more pairs of sheet-like electrodes for a function switch held by a pressure-sensitive, electroconductive sheet having weighed input sensitivity different from that of another pressure-sensitive, electroconductive sheet is laminated on a pair of flexible, sheet-like electrode groups for coordinate input having a plural number of electrodes in accordance with the pressing position and which is held by the latter pressure-sensitive, electroconductive sheet.
Claim 2
Dependent Claim
98 words
A coordinate input unit for converting and detecting a pressing position in accordance with the coordinate to be applied into an electric signal, said coordinate input unit comprising a coordinate input pad in which one or more pairs of sheet-like electrodes for a function switch held by a pressure-sensitive, electroconductive sheet having weighed input sensitivity different from that of another pressure-sensitive, electroconductive sheet is laminated on a pair of flexible, sheet-like electrode groups for coordinate input having a plural number of electrodes in accordance with the pressing position and which is held by the latter pressure-sensitive, electroconductive sheet.
Claim 3
Dependent Claim
33 words
A coordinate input unit in accordance with claim 1, wherein said coordinate input pressure-sensitive, electroconductive sheet has smaller input load, which attains the conductive resistance, than the pressure-sensitive electroconductive sheet for a switch.
Claim 4
Dependent Claim
34 words
A coordinate input unit in accordance with claim 1 or claim 2, wherein the difference between the input loads which attain the conductive resistances of the respective pressure-sensitive, electroconductive sheets is about 20 g.
Claim 5
Dependent Claim
18 words
A coordinate input unit in accordance with claim 1, wherein the input coordinate is displayed on a CRT.
Claim 6
Dependent Claim
25 words
A coordinate input unit in accordance with claim 1, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 7
Dependent Claim
29 words
A coordinate input unit in accordance with claim 1, wherein the two or more, laminated pressure-sensitive, electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 8
Dependent Claim
66 words
A coordinate input unit according to claim 1, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 9
Dependent Claim
18 words
A coordinate input unit in accordance with claim 2, wherein the input coordinate is displayed on a CRT.
Claim 10
Dependent Claim
18 words
A coordinate input unit in accordance with claim 3, wherein the input coordinate is displayed on a CRT.
Claim 11
Dependent Claim
24 words
A coordinate input unit according to claim 2, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 12
Dependent Claim
24 words
A coordinate input unit according to claim 3, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 13
Dependent Claim
24 words
A coordinate input unit according to claim 4, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 14
Dependent Claim
24 words
A coordinate input unit according to claim 8, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 15
Dependent Claim
24 words
A coordinate input unit according to claim 9, wherein said function switch is a switch for performing the display control of the input coordinate.
Claim 16
Dependent Claim
28 words
A coordinate input unit according to claim 2, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 17
Dependent Claim
28 words
A coordinate input unit according to claim 3, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 18
Dependent Claim
28 words
A coordinate input unit according to claim 4, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 19
Dependent Claim
28 words
A coordinate input unit according to claim 8, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 20
Dependent Claim
28 words
A coordinate input unit according to claim 9, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 21
Dependent Claim
28 words
A coordinate input unit according to claim 5, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 22
Dependent Claim
28 words
A coordinate input unit according to claim 10, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 23
Dependent Claim
28 words
A coordinate input unit according to claim 11, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 24
Dependent Claim
28 words
A coordinate input unit according to claim 12, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 25
Dependent Claim
28 words
A coordinate input unit according to claim 13, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 26
Dependent Claim
28 words
A coordinate input unit according to claim 14, wherein the two or more laminated pressure-sensitive electroconductive sheets are formed in the same composition and have different thicknesses, respectively.
Claim 27
Dependent Claim
66 words
A coordinate input unit according to claim 2, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 28
Dependent Claim
66 words
A coordinate input unit according to claim 3, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 29
Dependent Claim
66 words
A coordinate input unit according to claim 4, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 30
Dependent Claim
66 words
A coordinate input unit according to claim 8, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 31
Dependent Claim
66 words
A coordinate input unit according to claim 9, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 32
Dependent Claim
66 words
A coordinate input unit according to claim 5, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 33
Dependent Claim
66 words
A coordinate input unit according to claim 10, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 34
Dependent Claim
66 words
A coordinate input unit according to claim 11, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 35
Dependent Claim
66 words
A coordinate input unit according to claim 12, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 36
Dependent Claim
66 words
A coordinate input unit according to claim 13, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 37
Dependent Claim
66 words
A coordinate input unit according to claim 14, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 38
Dependent Claim
66 words
A coordinate input unit according to claim 6, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 39
Dependent Claim
66 words
A coordinate input unit according to claim 15, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 40
Dependent Claim
66 words
A coordinate input unit according to claim 16, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 41
Dependent Claim
66 words
A coordinate input unit according to claim 17, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 42
Dependent Claim
66 words
A coordinate input unit according to claim 18, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 43
Dependent Claim
66 words
A coordinate input unit according to claim 19, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 44
Dependent Claim
66 words
A coordinate input unit according to claim 20, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 45
Dependent Claim
66 words
A coordinate input unit according to claim 21, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 46
Dependent Claim
66 words
A coordinate input unit according to claim 23, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 47
Dependent Claim
66 words
A coordinate input unit according to claim 23, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 48
Dependent Claim
66 words
A coordinate input unit according to claim 24, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
Claim 49
Dependent Claim
66 words
A coordinate input unit according to claim 25, also comprising an insulated mesh of varying thickness, said insulated mesh having an opening, wherein said insulated mesh adheres to one or both sides of said pressure-sensitive sheets, wherein an input load sensitivity may be varied by changing the thickness of said insulated mesh or by varying said opening, or by changing both said thickness and said opening.
References Cited (Backward Citations)
US4475008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |