US4391490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interface for proximity coupled electro-optic devices
Assignee: Xerox Corp
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Filing: 1981-04-02
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Granted: 1983-07-05
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Expires: 2001-04-02
Abstract
Abstract A proximity coupled electro-optic device in which the electro-optic element has a pattern of conductors applied to the surface thereof abutting the individually addressable electrodes applying encoded data samples. The conductors are aligned in the same, or substantially the same, direction as the electrodes, and the period of the conductor pattern is equal to or less than the maximum width of the electrodes. Directional alignment tolerances between the conductors and electrodes are increased as the period of the conductor pattern is decreased, and when the conductors are segmented.
Inventors
- 👤 David H. Hartke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:32
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/0305; G02F1/0316; G06; G06K; G06K15/00; G06K15/02; G06K15/12; G06K15/1238; G06K15/1242; G06K15/1252
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
59 words
In an electro-optic device including an electro-optic element, a plurality of electrodes for applying encoded data samples, and means for urging the plurality of electrodes toward a surface of the electro-optic element, the improvement comprising: a plurality of conductors applied to said surface of said electro-optic element, said conductors being aligned in substantially the same direction as said electrodes.
Claim 2
Dependent Claim
59 words
In an electro-optic device including an electro-optic element, a plurality of electrodes for applying encoded data samples, and means for urging the plurality of electrodes toward a surface of the electro-optic element, the improvement comprising: a plurality of conductors applied to said surface of said electro-optic element, said conductors being aligned in substantially the same direction as said electrodes.
Claim 3
Dependent Claim
21 words
The improvement of claim 1 wherein the period of said conductors is substantially equal to the width of the individual conductors.
Claim 4
Dependent Claim
21 words
The improvement of claim 1 wherein the period of said conductors is substantially less than the width of the individual conductors.
Claim 5
Dependent Claim
10 words
The improvement of claim 1 wherein said conductors are segmented.
Claim 6
Dependent Claim
11 words
The improvement of claim 2 in which said conductors are segmented.
Claim 7
Dependent Claim
11 words
The improvement of claim 3 in which said conductors are segmented.
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) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |