US3704468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic graphic recording system
Assignee: Ricoh Co Ltd
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Filing: 1970-04-24
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Granted: 1972-11-28
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Expires: 1990-04-24
Abstract
Abstract An electronic graphic recording system is provided in which the electron beam deflection in marking means as cathode-ray tube or the like is controlled in response to a signal representative of a variable or data and a signal representative of the electron beam deflection is recorded upon moving exhibiting means, thereby providing a record of the variable or data as a function of time. A circuit for shifting the level of the variable or data signal by a predetermined level and a blanking circuit are further added so that a plurality of variables or data may be recorded upon a single exhibiting means.
Inventors
- 👤 Wasaburo Ohta
- 👤 Noboru Murayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:32
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
352 words
An electronic graphic recording system comprising, in combination, a. marking means of the cathode-ray tube type including electron emission means, a control grid, electron beam focusing means, and electron beam deflecting means for deflecting the electron beam only horizontally and means for converting the electron beam into a radiation beam; b. exhibiting means moving at a constant velocity in the direction at a right angle relative to said direction of deflecting electron beam, said exhibiting means being of the type sensitive to said radiation beam so as to reCord the trace of said radiation beam projected upon said exhibiting means; c. means for applying variable or data signals to said means for deflecting an electron beam representative of a plurality of variables or data for controlling said electron beam deflection depending upon said variable or data signals, said variable or data signal application means including adder means, means for applying sequentially, cyclically said variable or data signals to said adder, and level shift means for generating the same plurality of outputs each having a predetermined different level for each of said variable or data signals, said different level outputs of said level shift means being added in said adder means to the corresponding variable or data signals so as to shift the reference points or lines of said variables or data from each other by the distances determined by said level difference among said outputs from said level shift means, thereby controlling said electron beam deflection depending upon said variable or data signals, and d. blanking circuit means for applying a blanking signal to said control grid of said marking means of cathode ray tube type during the time when no variable or data signals are applied to said adder so that no electrons are emitted during the time when no signal is applied to said beam deflecting means, said blanking circuit applying and removing said blanking signal in correspondence with absence and presence of a data signal applied to said deflecting means, respectively, for permitting production of a radiation beam each time a data signal is applied to said deflecting means.
Claim 2
Dependent Claim
352 words
An electronic graphic recording system comprising, in combination, a. marking means of the cathode-ray tube type including electron emission means, a control grid, electron beam focusing means, and electron beam deflecting means for deflecting the electron beam only horizontally and means for converting the electron beam into a radiation beam; b. exhibiting means moving at a constant velocity in the direction at a right angle relative to said direction of deflecting electron beam, said exhibiting means being of the type sensitive to said radiation beam so as to reCord the trace of said radiation beam projected upon said exhibiting means; c. means for applying variable or data signals to said means for deflecting an electron beam representative of a plurality of variables or data for controlling said electron beam deflection depending upon said variable or data signals, said variable or data signal application means including adder means, means for applying sequentially, cyclically said variable or data signals to said adder, and level shift means for generating the same plurality of outputs each having a predetermined different level for each of said variable or data signals, said different level outputs of said level shift means being added in said adder means to the corresponding variable or data signals so as to shift the reference points or lines of said variables or data from each other by the distances determined by said level difference among said outputs from said level shift means, thereby controlling said electron beam deflection depending upon said variable or data signals, and d. blanking circuit means for applying a blanking signal to said control grid of said marking means of cathode ray tube type during the time when no variable or data signals are applied to said adder so that no electrons are emitted during the time when no signal is applied to said beam deflecting means, said blanking circuit applying and removing said blanking signal in correspondence with absence and presence of a data signal applied to said deflecting means, respectively, for permitting production of a radiation beam each time a data signal is applied to said deflecting means.
Claim 3
Dependent Claim
54 words
An electronic graphic recording system as specified in claim 1 wherein said blanking circuit means comprises means for applying said blanking signals to said control grid of said marking means of cathode-ray tube type at a predetermined time interval pattern even when each of said curves is traced for discontinuous tracing of the curves.
Claim 4
Dependent Claim
17 words
A system as defined in claim 1, wherein said exhibiting means comprises a silver halide sensitized member.
Claim 5
Dependent Claim
29 words
An electronic graphic recording system as specified in claim 1 wherein said exhibiting means is an electrophotographic sensitized member on which said radiation beam forms an electrostatic latent image.
Claim 6
Dependent Claim
24 words
An electronic graphic system as specified in claim 4 further including means for developing an electrostatic latent image formed upon said electrophotographic sensitized member.
Claim 7
Dependent Claim
320 words
An electronic graphic recording system comprising a. a cathode-ray tube including an electron beam source, a grid for controlling emission from said source, means for deflecting the emitted electron beam only horizontally, and means for converting the beam into a recordable radiation beam; b. means for recording said radiation beam, including a recording medium sensitized to record said radiation beam and means for advancing said medium at a constant predetermined rate, past a locality at which said medium is exposed to said radiation beam, in a direction perpendicular to the direction of deflection of the electron beam; c. means for applying data signals representative of a plurality of variables to said deflecting means for controlling deflection of the electron beam in accordance with said data signals, said signal-applying means including adder means, means for generating a corresponding plurality of pulses in a predetermined cyclical time sequence, means for cyclically and sequentially applying said plurality of data signals to said adder means in response to said pulses, and means for cyclically and sequentially generating and applying to said adder means in response to said pulses a corresponding plurality of outputs having respectively different levels, said last-mentioned outputs being respectively added in said adder means to the corresponding data signals for shifting the reference points of the data signals from each other by distances determined by the level differences among said last-mentioned outputs; and d. blanking circuit means responsive to said pulse-generating means for applying a blanking signal to said control grid between application of successive data signals to said adder means so that emission of the electron beam is interrupted between application of successive data signals as aforesaid, said blanking circuit applying and removing said blanking signal in correspondence with absence and presence of a data signal applied to said deflecting means, respectively, for permitting production of a radiation beam each time a data signal is applied to said deflecting means.
Claim 8
Dependent Claim
320 words
An electronic graphic recording system comprising a. a cathode-ray tube including an electron beam source, a grid for controlling emission from said source, means for deflecting the emitted electron beam only horizontally, and means for converting the beam into a recordable radiation beam; b. means for recording said radiation beam, including a recording medium sensitized to record said radiation beam and means for advancing said medium at a constant predetermined rate, past a locality at which said medium is exposed to said radiation beam, in a direction perpendicular to the direction of deflection of the electron beam; c. means for applying data signals representative of a plurality of variables to said deflecting means for controlling deflection of the electron beam in accordance with said data signals, said signal-applying means including adder means, means for generating a corresponding plurality of pulses in a predetermined cyclical time sequence, means for cyclically and sequentially applying said plurality of data signals to said adder means in response to said pulses, and means for cyclically and sequentially generating and applying to said adder means in response to said pulses a corresponding plurality of outputs having respectively different levels, said last-mentioned outputs being respectively added in said adder means to the corresponding data signals for shifting the reference points of the data signals from each other by distances determined by the level differences among said last-mentioned outputs; and d. blanking circuit means responsive to said pulse-generating means for applying a blanking signal to said control grid between application of successive data signals to said adder means so that emission of the electron beam is interrupted between application of successive data signals as aforesaid, said blanking circuit applying and removing said blanking signal in correspondence with absence and presence of a data signal applied to said deflecting means, respectively, for permitting production of a radiation beam each time a data signal is applied to said deflecting means.
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |