Patent US5315410A successfully refreshed from Google Patents.
US5315410A
Expired / Lapsed
US
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Method and apparatus for recording optical information by using a photoelectric transducer
Assignee: Victor Company of Japan Ltd
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Filing: 1991-02-08
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Granted: 1994-05-24
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Expires: 2011-02-08
Abstract
Abstract A system has a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter. In this system, light having information to be recorded is applied to the photosensitive member. The light information is recorded on the recording member. An exposure amount of the light with respect to the photosensitive member is set by setting a time during which the optical shutter remains open. A drive voltage of a predetermined variation manner is applied between the first and second electrodes during the recording of the light information on the recording member.
Inventors
- 👤 Itsuo Takanshi
- 👤 Shintaro Nakagaki
- 👤 Tsutou Asakura
- 👤 Masato Furuya
- 👤 Yoshihisa Koyama
- 👤 Yuji Uchiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:28
CPC Classifications
G; G11; G11C; G11C7/00; G11C7/005; G03; G03G; G03G15/00; G03G15/05; G03G5/00; G03G5/02; G11C13/00; G11C13/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
151 words
In a system having a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter, a method comprising the steps of: applying light to the photosensitive member, the light having information to be recorded; recording the light information on the recording member; setting an exposure amount of the light with respect to the photosensitive member by setting a time during which the optical shutter remains open; applying a drive voltage of a predetermined variation manner between the first and second electrodes during recording of the light information on the recording member; and enabling an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes to be different from each other in at least one of time length and time position.
Claim 2
Dependent Claim
151 words
In a system having a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter, a method comprising the steps of: applying light to the photosensitive member, the light having information to be recorded; recording the light information on the recording member; setting an exposure amount of the light with respect to the photosensitive member by setting a time during which the optical shutter remains open; applying a drive voltage of a predetermined variation manner between the first and second electrodes during recording of the light information on the recording member; and enabling an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes to be different from each other in at least one of time length and time position.
Claim 3
Dependent Claim
39 words
The method of claim 1 wherein the open period of the optical shutter and the period of the application of the drive voltage between the first and second electrodes are selected to optimize exposure characteristics of said photosensitive member.
Claim 4
Dependent Claim
44 words
The method of claim 1 further comprising the step of applying the drive voltage between the first and second electrodes during a period which contains an open period of the optical shutter and which is longer than the open period of the optical shutter.
Claim 5
Dependent Claim
32 words
The method of claim 1 further comprising the step of applying a bias voltage between the first and second electrodes during a period longer than an open period of the optical shutter.
Claim 6
Dependent Claim
37 words
The method of claim 1 further comprising the step of enabling a period of the application of the drive voltage between the first and second electrodes to be shorter than the open period of the optical shutter.
Claim 7
Dependent Claim
173 words
In a system having a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter, a method comprising the steps of: applying a predetermined voltage between the first and second electrodes during a predetermined period; applying light to the photosensitive member, the light having information to be recorded; recording the light information on the recording member; setting an exposure amount of the light with respect to the photosensitive member by setting a time during which the optical shutter remains open; during a period different from the predetermined period of application of the predetermined voltage, setting a drive voltage between the first and second electrodes in a condition where the recording member remains unchanged; and enabling an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes to be different from each other in at least one of time length and time position.
Claim 8
Dependent Claim
173 words
In a system having a first electrode, a second electrode, a photosensitive member located between the first and second electrodes, a recording member located between the first and second electrodes, and an optical shutter, a method comprising the steps of: applying a predetermined voltage between the first and second electrodes during a predetermined period; applying light to the photosensitive member, the light having information to be recorded; recording the light information on the recording member; setting an exposure amount of the light with respect to the photosensitive member by setting a time during which the optical shutter remains open; during a period different from the predetermined period of application of the predetermined voltage, setting a drive voltage between the first and second electrodes in a condition where the recording member remains unchanged; and enabling an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes to be different from each other in at least one of time length and time position.
Claim 9
Dependent Claim
23 words
The method of claim 6 further comprising the step of connecting an element of a predetermined impedance between the first and second electrodes.
Claim 10
Dependent Claim
32 words
The method of claim 6 further comprising the step of directly connecting the first and second electrodes during a period different from the predetermined period of the application of the predetermined voltage.
Claim 11
Independent Claim
136 words
An apparatus comprising: an optical shutter for setting an exposure light amount; a photosensitive member exposed to an optical image of an object when the optical shutter is open; a recording member recording information corresponding to the optical image when the optical shutter is open; first and second electrodes for applying an electric field to the photosensitive member and the recording member when a potential is applied between the first and second electrodes; means for applying a voltage between the first and second electrodes; and means for changing the voltage applied between the first and second electrodes wherein an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes are different from each other in at least one of time length and time position.
Claim 12
Independent Claim
136 words
An apparatus comprising: an optical shutter for setting an exposure light amount; a photosensitive member exposed to an optical image of an object when the optical shutter is open; a recording member recording information corresponding to the optical image when the optical shutter is open; first and second electrodes for applying an electric field to the photosensitive member and the recording member when a potential is applied between the first and second electrodes; means for applying a voltage between the first and second electrodes; and means for changing the voltage applied between the first and second electrodes wherein an open period of the optical shutter and a period of the application of the drive voltage between the first and second electrodes are different from each other in at least one of time length and time position.
Claim 13
Dependent Claim
40 words
The apparatus of claim 9 where wherein the open period of the optical shutter and the period of the application of the drive voltage between the first and second electrodes are selected to optimize exposure characteristics of said photosensitive member.
Claim 14
Dependent Claim
18 words
The apparatus of claim 9 wherein the first electrode and the photosensitive member are attached to each other.
Claim 15
Dependent Claim
17 words
The apparatus of claim 9 wherein the photosensitive member and the recording member compose a recording medium.
Claim 16
Dependent Claim
19 words
The apparatus of claim 9 further comprising a color separator for separating the optical image into different color components.
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) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |