US4899223A
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Electrode array for an electrooptical facsimile recorder and method of controlling said electrode array
Assignee: Alcatel Lucent NV
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Filing: 1988-11-16
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Granted: 1990-02-06
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Expires: 2008-11-16
Abstract
Abstract An electrode array for an electrooptical facsimile recorder and a method of controlling this electrode array are disclosed. A plurality of spot electrodes are inserted between two main electrodes deposited on a lead lanthanum zirconate titanate (PLZT) substrate. In this manner, three partial lines of electrically controllable light gates are formed which provide a line-at-a-time output of the information to be reproduced. The individual light gates are controlled by driver ICs with push-pull output stages. To control the individual partial lines, different voltages must be applied to the main and spot electrodes.
Inventors
- 👤 Johann Springer
- 👤 Wolfgang Heck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:41
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/19; H04N1/195; H04N1/19505; H04N1/19515; G; G06; G06K; G06K15/00; G06K15/02; G06K15/12; G06K15/1238; G06K15/1242; G06K15/1252; H04N1/19584; H04N1/46; H04N1/50
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
101 words
Electrode array deposited on a common surface of an electrooptical substrate so as to form at least three partial lines of electrically, each having at least three independently, controllable light gates, said electrode array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed between said two main electrodes in a second direction generally perpendicular to the line direction and electrically isolated from each other and from the main electrodes, wherein each of the light gates is defined by opposing portions of two adjacent said electrodes.
Claim 2
Dependent Claim
101 words
Electrode array deposited on a common surface of an electrooptical substrate so as to form at least three partial lines of electrically, each having at least three independently, controllable light gates, said electrode array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed between said two main electrodes in a second direction generally perpendicular to the line direction and electrically isolated from each other and from the main electrodes, wherein each of the light gates is defined by opposing portions of two adjacent said electrodes.
Claim 3
Dependent Claim
100 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein a first linear array of light gates is formed between respective first spot electrodes in each of said sequences and a first one of said main electrodes.
Claim 4
Dependent Claim
100 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein a first linear array of light gates is formed between respective first spot electrodes in each of said sequences and a first one of said main electrodes.
Claim 5
Dependent Claim
30 words
An electrode array as claimed in claim 2, wherein a second linear array of light gates if formed between adjacent first and second spot electrodes in each of said sequences.
Claim 6
Dependent Claim
50 words
An electrode array as claimed in claim 3, wherein a third linear array of light gates is formed between the second one of the spot electrodes in each of said sequences and the second of said main electrodes to thereby provide a total of three partial lines of light gates.
Claim 7
Dependent Claim
27 words
An electrode array as claimed in claim 2, wherein the number of spot-electrodes is equal to twice the number of light gates provide for one partial line.
Claim 8
Dependent Claim
100 words
Electrode array deposited on n electrooptical substrate so as to form at least three staggered partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said staggered partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein the spot electrodes are stagger shaped so that their opposite ends are displaced by the width of one light gate in relation to one another.
Claim 9
Dependent Claim
100 words
Electrode array deposited on n electrooptical substrate so as to form at least three staggered partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said staggered partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein the spot electrodes are stagger shaped so that their opposite ends are displaced by the width of one light gate in relation to one another.
Claim 10
Dependent Claim
85 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein the spot electrodes are connected to a control device by bonding wires.
Claim 11
Dependent Claim
85 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein the spot electrodes are connected to a control device by bonding wires.
Claim 12
Dependent Claim
19 words
An electrode array as claimed in claim 7, wherein the bonding wires are electrically isolated from the main electrodes.
Claim 13
Dependent Claim
83 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein said electrooptical substrate comprises lead lanthanum zirconate titanate (PLZT) ceramic.
Claim 14
Dependent Claim
83 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein said electrooptical substrate comprises lead lanthanum zirconate titanate (PLZT) ceramic.
Claim 15
Dependent Claim
81 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein said electrooptical substrate is constructed by thin-film techniques.
Claim 16
Dependent Claim
81 words
Electrode array deposited on an electrooptical substrate so as to form at least three partial lines of electrically controllable light gates, said array comprising two main electrodes extending parallel to one another in a line direction parallel to said partial lines, and a plurality of spot electrodes interposed in sequences of at least two of said spot electrodes between the main electrodes in a second direction generally perpendicular to the line direction, wherein said electrooptical substrate is constructed by thin-film techniques.
Claim 17
Dependent Claim
18 words
An electrode array as claimed in claim 1, characterized by its use in a high-resolution monochrome facsimile recorder.
Claim 18
Dependent Claim
17 words
An electrode array as claimed in claim 4, characterized by its use in a color facsimile recorder.
Claim 19
Dependent Claim
27 words
An electrode array as claimed in claim 12, wherein the individual partial lines are underlaid with a color filter, with each partial line assigned one primary color.
Claim 20
Dependent Claim
18 words
An electrode array as claimed in claim 13, wherein the color filters are printed onto the partial lines.
Claim 21
Dependent Claim
16 words
An electrode array as claimed in claim 13, wherein the color filters are formed by films.
Claim 22
Dependent Claim
25 words
Apparatus comprising the electrode array as claimed in claim 4, further comprising means for electrically controlling the light gates by energizing them line by line.
Claim 23
Dependent Claim
25 words
Apparatus as claimed in claim 16, further comprising a first group of driver stages for energizing only the light gates of the first partial line.
Claim 24
Dependent Claim
37 words
Apparatus as claimed in claim 17, further comprising a second group of driver stages separate and distinct from said first group of driver stages for energizing the light gates of both the second and third partial lines.
Claim 25
Dependent Claim
25 words
Apparatus as claimed in claim 18, wherein the number of driver stages per group is equal to the number of light gates per partial line.
Claim 26
Dependent Claim
29 words
Apparatus as claimed in claim 19, wherein the output stages of the driver stages, which output stages act as switches, never are both simultaneously open or both simultaneously closed.
Claim 27
Dependent Claim
26 words
Apparatus as claimed in claim 16, wherein the voltages applied to the main electrodes and to each linear array of spot electrodes are not all equal.
Claim 28
Dependent Claim
17 words
Apparatus as claimed in claim 21, wherein each of said voltages assumes different values at different times.
Claim 29
Dependent Claim
21 words
Apparatus as claimed in claim 22, wherein the value of said each voltage depends on the partial line then being energized.
Claim 30
Dependent Claim
41 words
Apparatus as claimed in claim 23, wherein a selected one of the light gates becomes transparent if a voltage of magnitude U, which depends on the material and the geometry of the electrode array, is applied across the selected light gate.
Claim 31
Dependent Claim
29 words
Apparatus as claimed in claim 24, wherein a selected one of the light gates becomes opaque if a voltage less than U/3 is applied across the selected light gate.
Claim 32
Dependent Claim
26 words
Apparatus as claimed in claim 25, wherein the voltages applied to the main and spot electrodes can selectively assume the values U/3, 2U/3, U, and 4U/3.
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) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |