Patent US3818496A successfully refreshed from Google Patents.
US3818496A
Expired / Lapsed
US
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Illumination control system
Assignee: MICRO COMPUTER Inc
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Filing: 1973-01-30
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Granted: 1974-06-18
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Expires: 1993-01-30
Abstract
Abstract A control system is provided for precisely controlling an illumination source which forms part of system. The control system enables the illumination source to be controlled in accordance with the characteristics of the recording medium, the relative motion between the recording medium and the illumination source, the image to be formed on the recording medium, the dynamics of the system causing the relative motion between the source and the recording medium, variations in the illumination source and over their life, and the illumination source dynamics.
Inventors
- 👤 B Lee
- 👤 G Wimmer
- 👤 G Hyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:08
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/22; G06K15/225
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
143 words
A system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising; closed loop illumination control means for controlling illumination including a. illumination feedback means for generating an illumination feedback signal in response to the controlled illumination and b. means for generating an electrical energization signal in response to the illumination feedback signal; illumination source means for generating the controlled illumination in response to the electrical energization signal; closed loop motion control means for controlling relative motion between the illumination and an illumination sensitive medium including a. motion feedback means for generating a motion feedback signal in response to the relative motion and b. means for generating a motion control signal in response to the motion feedback signal; and a machine for providing relative motion between the illumination and an illumination sensitive medium in response to the motion control signal.
Claim 2
Independent Claim
143 words
A system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising; closed loop illumination control means for controlling illumination including a. illumination feedback means for generating an illumination feedback signal in response to the controlled illumination and b. means for generating an electrical energization signal in response to the illumination feedback signal; illumination source means for generating the controlled illumination in response to the electrical energization signal; closed loop motion control means for controlling relative motion between the illumination and an illumination sensitive medium including a. motion feedback means for generating a motion feedback signal in response to the relative motion and b. means for generating a motion control signal in response to the motion feedback signal; and a machine for providing relative motion between the illumination and an illumination sensitive medium in response to the motion control signal.
Claim 3
Independent Claim
156 words
A system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising: illumination command means for generating an illumination command signal, said illumination command signal being related to a desired illumination; illumination feedback means for generating an illumination feedback signal in response to a particular spectrum of the controlled illumination; illumination control means for generating an illumination control signal in response to the illumination command signal and the illumination feedback signal; illumination source means for providing the controlled illumination in response to the illumination control signal; a closed loop servo for controlling motion between the illumination and an illumination sensitive medium including motion feedback means for generating a motion feedback signal in response to the motion and means for generating a motion control signal in response to the motion feedback signal; and machine means for providing relative motion between the illumination and said illumination sensitive medium in response to the motion control signal.
Claim 4
Independent Claim
156 words
A system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising: illumination command means for generating an illumination command signal, said illumination command signal being related to a desired illumination; illumination feedback means for generating an illumination feedback signal in response to a particular spectrum of the controlled illumination; illumination control means for generating an illumination control signal in response to the illumination command signal and the illumination feedback signal; illumination source means for providing the controlled illumination in response to the illumination control signal; a closed loop servo for controlling motion between the illumination and an illumination sensitive medium including motion feedback means for generating a motion feedback signal in response to the motion and means for generating a motion control signal in response to the motion feedback signal; and machine means for providing relative motion between the illumination and said illumination sensitive medium in response to the motion control signal.
Claim 5
Independent Claim
183 words
A system for providing selective exposures, said system comprising: illumination means for providing controlled illumination in response to an illumination control signal; an illumination sensitive medium for providing exposures in response to the cOntrolled illumination; illumination command means for generating an illumination command signal being related to a desired illumination; illumination feedback means for generating an illumination feedback signal in response to the controlled illumination; illumination control means for generating the illumination control signal in response to the illumination feedback signal to reduce a difference therebetween; motion command means for generating a motion command signal related to a desired relative motion between the illumination and said medium; motion control means for generating a motion control signal including motion feedback means for generating a motion feedback signal being related to actual motion and comparing means for generating the motion control signal in response to the motion command signal and the motion feedback signal, said motion control means being arranged as a closed loop servo; and a machine for providing relative motion between the illumination and said medium in response to the motion control signal.
Claim 6
Independent Claim
183 words
A system for providing selective exposures, said system comprising: illumination means for providing controlled illumination in response to an illumination control signal; an illumination sensitive medium for providing exposures in response to the cOntrolled illumination; illumination command means for generating an illumination command signal being related to a desired illumination; illumination feedback means for generating an illumination feedback signal in response to the controlled illumination; illumination control means for generating the illumination control signal in response to the illumination feedback signal to reduce a difference therebetween; motion command means for generating a motion command signal related to a desired relative motion between the illumination and said medium; motion control means for generating a motion control signal including motion feedback means for generating a motion feedback signal being related to actual motion and comparing means for generating the motion control signal in response to the motion command signal and the motion feedback signal, said motion control means being arranged as a closed loop servo; and a machine for providing relative motion between the illumination and said medium in response to the motion control signal.
Claim 7
Dependent Claim
42 words
The system as set forth in claim 3 above further comprising means for generating a velocity feedback signal in response to the relative motion, said illumination command means being further responsive to the velocity feedback signal for generating the illumination command signal.
Claim 8
Dependent Claim
35 words
The system as set forth in claim 3 above wherein said illumination feedback means includes spectrum selection means for providing the illumination feedback signal in response to a selected spectrum portion of said controlled illumination.
Claim 9
Dependent Claim
109 words
An illumination control system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising: means for generating a first command signal; means for generating a second command signal; illumination control means for generating a control signal in response to the first command signal and the second command signal, wherein said control signal is related to the product of the first command signal and the second command signal; illumination means for generating controlled illumination in response to the control signal; an illumination sensitive medium for generating exposures in response to the controlled illumination; and a machine for providing relative motion between said medium and the controlled illumination.
Claim 10
Dependent Claim
109 words
An illumination control system for selectively exposing an illumination sensitive medium with controlled illumination, said system comprising: means for generating a first command signal; means for generating a second command signal; illumination control means for generating a control signal in response to the first command signal and the second command signal, wherein said control signal is related to the product of the first command signal and the second command signal; illumination means for generating controlled illumination in response to the control signal; an illumination sensitive medium for generating exposures in response to the controlled illumination; and a machine for providing relative motion between said medium and the controlled illumination.
Claim 11
Dependent Claim
63 words
The system as set forth in claim 6 above wherein the first command signal is a digital command signal, the second command signal is an analog command signal, and the control signal is an analog control signal; said control signal generating means including multiplication means for generating the analog control signal in response to the digital command signal and the analog command signal.
Claim 12
Dependent Claim
57 words
The system as set forth in claim 6 above wherein said first command signal generating means includes motion feedback means for generating the first command signal in response to the relative motion and wherein said second command signal generating means includes stored program computer means for generating the second command signal in response to a stored program.
Claim 13
Dependent Claim
60 words
The system as set forth in claim 6 above further comprising illumination feedback means for generating a feedback signal in response to the controlled illumination, said control signal generating means including comparing means for generating the control signal in response to a difference between the feedback signal and the product of the first command signal and the second command signal.
Claim 14
Dependent Claim
168 words
An illumination control system comprising: illumination means for providing illumination in response to an illumination control signal; illumination feedback means for generating an illumination feedback signal in response to the illumination; illumination control means for generating the illumination control signal in response to the illumination feedback signal; an illumination sensitive medium for providing exposures in response to thE illumination; machine means for providing relative motion between the illumination and said medium in response to a motion control signal; motion control means for controlling the relative motion in response to a motion command signal, said motion control means including a closed loop servo for generating the motion control signal in response to the motion command signal and a motion feedback signal and including motion feedback means for generating the motion feedback signal in response to the relative motion; motion command means for generating the motion command signal; and compensation means for matching the dynamic response of the illumination control signal and the dynamic response of the motion control signal.
Claim 15
Dependent Claim
168 words
An illumination control system comprising: illumination means for providing illumination in response to an illumination control signal; illumination feedback means for generating an illumination feedback signal in response to the illumination; illumination control means for generating the illumination control signal in response to the illumination feedback signal; an illumination sensitive medium for providing exposures in response to thE illumination; machine means for providing relative motion between the illumination and said medium in response to a motion control signal; motion control means for controlling the relative motion in response to a motion command signal, said motion control means including a closed loop servo for generating the motion control signal in response to the motion command signal and a motion feedback signal and including motion feedback means for generating the motion feedback signal in response to the relative motion; motion command means for generating the motion command signal; and compensation means for matching the dynamic response of the illumination control signal and the dynamic response of the motion control signal.
Claim 16
Dependent Claim
86 words
An illumination control system comprising: illumination means for providing controlled illumination in response to an electrical control signal; an illumination sensitive medium for generating exposures in response to the controlled illumination; illumination feedback means for generating an illumination feedback signal in response to said controlled illumination; electrical means for controlling said illumination, said electrical means including closed loop means for providing the electrical control signal in response to the illumination feedback signal; and a machine for providing relative motion between said medium and said controlled illumination.
Claim 17
Dependent Claim
86 words
An illumination control system comprising: illumination means for providing controlled illumination in response to an electrical control signal; an illumination sensitive medium for generating exposures in response to the controlled illumination; illumination feedback means for generating an illumination feedback signal in response to said controlled illumination; electrical means for controlling said illumination, said electrical means including closed loop means for providing the electrical control signal in response to the illumination feedback signal; and a machine for providing relative motion between said medium and said controlled illumination.
Claim 18
Dependent Claim
56 words
The system as set forth in claim 11 above further comprising motion control means for controlling the relative motion and motion feedback means for generating a motion feedback signal, said motion feedback signal being related to the relative motion, said electrical means being further responsive to the motion feedback signal for providing the electrical control signal.
Claim 19
Dependent Claim
52 words
The system as set forth in claim 11 above further comprising illumination command means for generating an illumination command signal, said illumination command signal being related to a desired exposure of said illumination sensitive medium, said electrical means being further responsive to the illumination command signal for providing the electrical control signal.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |