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US4594586A Expired / Lapsed US ⏱️ 0.0 years remaining

X-Y position input device for display system

Assignee: Alps Alpine Co Ltd
•
Filing: 1983-08-08
•
Granted: 1986-06-10
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Expires: 2003-08-08
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Abstract

Abstract An X-Y input device comprises a rotatable ball, a first driven roller held in contact with the rotatable ball and rotatable in response to rotation of the rotatable ball, a second driven roller held in contact with the rotatable ball and rotatable in response to rotation of the rotatable ball, the second driven roller having an axis of rotation extending substantially perpendicularly to that of the first driven roller, first angle detector means for detecting an angle of rotation of the first driven roller, second angle detector means for detecting an angle of rotation of the second driven roller, and a sole biasing rotatable body positioned in confronting relation to the first and second driven rollers for resiliently biasing the rotatable ball against the first and second driven rollers. The biasing rotatable body is held in contact with the rotatable ball at a point which is joined to a center of rotation of the rotatable ball by a straight line passing centrally between the first and second driven rollers.

Inventors

  • 👤 Junichi Hosogoe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:15
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/0354; G06F3/03543; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 162 words
An X-Y input device comprising a rotatable ball, a first driven roller held in contact with said rotatable ball and rotatable in response to rotation of said rotatable ball, a second driven roller held in contact with said rotatable ball and rotatable in response to rotation of said rotatable ball, said second driven roller having an axis of rotation extending substantially perpendicularly to that of said first driven roller, first angle detector means for detecting an angle of rotation of said first driven roller, and second angle detector means for detecting an angle of rotation of said second driven roller, each of said first and second driven rollers comprising a hub having a through hole with a rotatable shaft extending therethrough, an outer cylinder spaced radially outwardly from said hub, a plurality of connectors extending radially from said hub to said outer cylinder, and a plurality of sectorial recesses defined between said hub and said outer cylinder and divided by said connectors.
Claim 2
Dependent Claim 162 words
An X-Y input device comprising a rotatable ball, a first driven roller held in contact with said rotatable ball and rotatable in response to rotation of said rotatable ball, a second driven roller held in contact with said rotatable ball and rotatable in response to rotation of said rotatable ball, said second driven roller having an axis of rotation extending substantially perpendicularly to that of said first driven roller, first angle detector means for detecting an angle of rotation of said first driven roller, and second angle detector means for detecting an angle of rotation of said second driven roller, each of said first and second driven rollers comprising a hub having a through hole with a rotatable shaft extending therethrough, an outer cylinder spaced radially outwardly from said hub, a plurality of connectors extending radially from said hub to said outer cylinder, and a plurality of sectorial recesses defined between said hub and said outer cylinder and divided by said connectors.
Claim 3
Dependent Claim 22 words
An X-Y input device according to claim 1, wherein said hub, said outer cylinder, and said connectors have substantially the same thickness.
Claim 4
Dependent Claim 21 words
An X-Y input device according to claim 1, wherein said outer cylinder has projections and recesses on its outer peripheral surface.
Claim 5
Dependent Claim 22 words
An X-Y input device according to claim 1, wherein said driven rollers are molded of synthetic resin with reinforcement fibers mixed therein.

References Cited (Backward Citations)

US3010329A Cited
US3835464A Cited
US3835464B1 Cited
US4404865A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-06-09 1989-12-09 1990-06-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-06-09 1993-12-09 1994-06-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-06-09 1997-12-09 1998-06-10 $7700.00 Window Closed / Lapsed

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