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US3679824A Expired / Lapsed US ⏱️ 0.0 years remaining

Facsimile system

Assignee: Tektronix Inc
•
Filing: 1970-05-04
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Granted: 1972-07-25
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Expires: 1990-05-04
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Abstract

Abstract A computer terminal includes a cathode ray storage tube for receiving information from a computer and storing the same for continuous viewing. A copying apparatus is employed for making a permanent copy of the information presented on the cathode ray storage tube screen, such copying apparatus including means for scanning a sensitized surface, later suitably developed to provide the permanent copy. Read out circuit means effects simultaneous scanning of the copying apparatus and the cathode ray storage tube at a relatively slow rate compatible with the scanning capability of the copying apparatus, while at the same time the cathode ray storage tube''s electron beam is pulse modulated wherein each pulsation thereof has a duration shorter than necessary to write information on the storage tube. The resultant signal produced at the storage tube target is coupled to the copying apparatus to duplicate the information stored on the cathode ray storage tube screen.

Inventors

  • 👤 Charles B Gibson Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 20:10
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/23; G01; G01R; G01R13/00; G01R13/20; G01R13/204; G06; G06F; G06F3/00; G06F3/14; G06F3/153; G06K; G06K15/00; G06K15/02; G06K15/12; G06K15/1233; G09; G09G; G09G1/00; G09G1/26; H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32106; H04N1/32117; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3261; H04N2201/3264

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 171 words
A system for providing a copy of electronically received information comprising: a cathode ray storage tube for receiving the electronically received infoRmation for storage, said tube including electron beam generation means and means for deflecting the electron beam of said storage tube over a storage surface thereof for storing the electronically received information, copying apparatus for selectively reproducing information on a surface adapted to provide a permanent copy, means for selectively initiating operation of said copying apparatus, deflection signal generation circuitry providing a scanning signal for operation of said deflection meanS of said cathode ray tube substantially concurrently with operation of said copying apparatus to produce scanning of said storage surface by said electron beam, means for reading out information as stored on said storage tube storage surface point by point as said scanning signal operates the deflection means thereof, and means for applying the output read out to said copying apparatus to reproduce, on said surface adapted to provide a permanent copy, the information as stored on said storage surface.
Claim 2
Independent Claim 171 words
A system for providing a copy of electronically received information comprising: a cathode ray storage tube for receiving the electronically received infoRmation for storage, said tube including electron beam generation means and means for deflecting the electron beam of said storage tube over a storage surface thereof for storing the electronically received information, copying apparatus for selectively reproducing information on a surface adapted to provide a permanent copy, means for selectively initiating operation of said copying apparatus, deflection signal generation circuitry providing a scanning signal for operation of said deflection meanS of said cathode ray tube substantially concurrently with operation of said copying apparatus to produce scanning of said storage surface by said electron beam, means for reading out information as stored on said storage tube storage surface point by point as said scanning signal operates the deflection means thereof, and means for applying the output read out to said copying apparatus to reproduce, on said surface adapted to provide a permanent copy, the information as stored on said storage surface.
Claim 3
Dependent Claim 135 words
The system according to claim 1 wherein said copying apparatus comprises means for deflecting a second electron beam in a first direction in substantial synchronism with movement of the first mentioned electron beam in a given direction, and means for moving said surface adapted to provide a permanent copy in a second direction orthogonal to said first direction for subjecting said last mentioned surface to the effect of said second electron beam and providing a record of successive deflections thereof in said first direction, said second electron beam producing an image substantially across the surface adapted to provide a permanent copy, said image being narrow in the direction of movement of the last mentioned surface for producing incremental portions of the overall record which together provide a composite with movement of said last mentioned surface.
Claim 4
Dependent Claim 34 words
The system according to claim 1 wherein said storage tube comprises a bistable storage tube provided with a storage surface adapted to retain a stored image through continued secondary emission from said storage surface.
Claim 5
Dependent Claim 61 words
The system according to claim 3 wherein said means for reading out stored information includes means for pulsing said electron beam wherein each pulsation has a duration less than necessary to change a portion of said storage surface from one stable potential to another, with the spacing between pulsations allowing return of read out areas to their original stored potential level.
Claim 6
Independent Claim 276 words
A system for providing a copy of electronically received information comprising: a cathode ray storage tube for receiving the electronically received information for storage at a first rate, said tube including electron beam generation means and means for deflecting the electron beam of said storage tube over a storage surface thereof for storing the electronically received information, copying apparatus including scanning means for reproducing information on a surface which is sensitive for providing a permanent copy, deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of said scanning means during copying apparatus operation, at a second and slower rate compatible with the scanning speed capability of said scanning means of said copying apparatus, means for also coupling said scanning signal from said generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus scanning operation for causing electron beam scanning of the information of said cathode ray storage tube at said second and slower rate whereby electron beam scanning in said cathode ray storage tube is then accomplished in substantial synchronism with scanning of said movable surface, means for modulating said electron beam during copying apparatus scanning operation, including means for pulsing the beam to read information from said cathode ray storage tube, wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, means for coupling the output read from said storage tube to said copying apparatus, and means for synchronously initiating and concluding electron beam scanning operation in said cathode ray storage tube and operation of said scanning means in said read out apparatus for each permanent copy produced.
Claim 7
Independent Claim 276 words
A system for providing a copy of electronically received information comprising: a cathode ray storage tube for receiving the electronically received information for storage at a first rate, said tube including electron beam generation means and means for deflecting the electron beam of said storage tube over a storage surface thereof for storing the electronically received information, copying apparatus including scanning means for reproducing information on a surface which is sensitive for providing a permanent copy, deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of said scanning means during copying apparatus operation, at a second and slower rate compatible with the scanning speed capability of said scanning means of said copying apparatus, means for also coupling said scanning signal from said generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus scanning operation for causing electron beam scanning of the information of said cathode ray storage tube at said second and slower rate whereby electron beam scanning in said cathode ray storage tube is then accomplished in substantial synchronism with scanning of said movable surface, means for modulating said electron beam during copying apparatus scanning operation, including means for pulsing the beam to read information from said cathode ray storage tube, wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, means for coupling the output read from said storage tube to said copying apparatus, and means for synchronously initiating and concluding electron beam scanning operation in said cathode ray storage tube and operation of said scanning means in said read out apparatus for each permanent copy produced.
Claim 8
Dependent Claim 34 words
The system according to claim 5 wherein said storage tube comprises a bistable storage tube provided with a storage surface adapted to retain a stored image through continued secondary emission from said storage surface.
Claim 9
Dependent Claim 135 words
The system according to claim 5 wherein said copying apparatus comprises means for deflecting a second electron beam in a first direction in substantial synchronism with movement of the first mentioned electron beam in a given direction, and means for moving said surface adapted to provide a permanent copy in a second direction orthogonal to said first direction for subjecting said last mentioned surface to the effect of said second electron beam and providing a record of successive deflections thereof in said first direction, said second electron beam producing an image substantially across the surface adapted to provide a permanent copy, said image being narrow in the direction of movement of the last mentioned surface for producing incremental portions of the overall record which together provide a composite with movement of said last mentioned surface.
Claim 10
Dependent Claim 145 words
Read out circuit means in a system for providing a copy of information stored on a cathode ray storage tube, said system including copying apparatus for reproducing information on a surface adapted to provide a permanent copy, said read out circuit means comprising: deflection signal generation circuitry providing a scanning signal for operation of deflection means of said cathode ray tube substantially concurrently with operation of said copying apparatus for reproducing information on a surface, for causing electron beam scanning of the information stored by said cathode ray storage tube, means for providing a pulse signal for modulating the electron beam of the cathode ray storage tube during copying apparatus operation wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, and means for amplifying and coupling the output read from said storage tube to said copying apparatus.
Claim 11
Dependent Claim 145 words
Read out circuit means in a system for providing a copy of information stored on a cathode ray storage tube, said system including copying apparatus for reproducing information on a surface adapted to provide a permanent copy, said read out circuit means comprising: deflection signal generation circuitry providing a scanning signal for operation of deflection means of said cathode ray tube substantially concurrently with operation of said copying apparatus for reproducing information on a surface, for causing electron beam scanning of the information stored by said cathode ray storage tube, means for providing a pulse signal for modulating the electron beam of the cathode ray storage tube during copying apparatus operation wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, and means for amplifying and coupling the output read from said storage tube to said copying apparatus.
Claim 12
Dependent Claim 87 words
The apparatus according to claim 8 further including means for simultaneously initiating electron beam scanning in said cathode ray storage tube and a scanning operation of said copying apparatus, said scanning operation producing an image substantially across said surface adapted to provide a permanent copy, and means for moving the last mentioned surface, said image being narrow in the direction of movement of the last mentioned surface for producing incremental portions of the overall information which together provide a composite with movement of said last mentioned surface.
Claim 13
Dependent Claim 220 words
Read out circuit means in a system for providing a copy of information stored on a cathode ray storage tube at a first rate, said system including copying apparatus with scanning means for reproducing information on a surface adapted to provide a permanent copy, said read out circuit means comprising: deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of said scanning means during copying apparatus operation, at a second and slower rate compatible with the scanning speed capability of said scanning means of said copying apparatus, means for also coupling said scanning signal from said generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus scanning operation for causing electron beam scanning of the information of said cathode ray storage tube at said second and slower rate whereby electron beam scanning in said cathode ray storage tube is then accomplished in substantial syncHronism with scanning of said movable surface, means for modulating said electron beam during copying apparatus scanning operation, including means for pulsing the beam to read information from said cathode ray storage tube, wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, and means for amplifying and coupling the output read from said storage tube to said copying apparatus.
Claim 14
Dependent Claim 220 words
Read out circuit means in a system for providing a copy of information stored on a cathode ray storage tube at a first rate, said system including copying apparatus with scanning means for reproducing information on a surface adapted to provide a permanent copy, said read out circuit means comprising: deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of said scanning means during copying apparatus operation, at a second and slower rate compatible with the scanning speed capability of said scanning means of said copying apparatus, means for also coupling said scanning signal from said generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus scanning operation for causing electron beam scanning of the information of said cathode ray storage tube at said second and slower rate whereby electron beam scanning in said cathode ray storage tube is then accomplished in substantial syncHronism with scanning of said movable surface, means for modulating said electron beam during copying apparatus scanning operation, including means for pulsing the beam to read information from said cathode ray storage tube, wherein each pulsation thereof has a duration less than necessary to write information on said storage tube, and means for amplifying and coupling the output read from said storage tube to said copying apparatus.
Claim 15
Independent Claim 199 words
The method of producing a permanent copy of information stored on a cathode ray storage tube comprising: deflecting the electron beam of said cathode ray storage tube over a storage surface thereof in first and second directions, pulse modulating the electron beam of said cathode ray storage tube with a pulse duration less than necessary to write information on said storage tube, moving a sensitive image receiving surface in a first direction corresponding to a first direction of deflection in said storage tube, while scanning said surface in a second direction corresponding to said second direction of deflection in said storage tube, and coupling the storage tube output, derived from said storage tube in response to pulse modulation of said electron beam, for controlling the scanning intensity of said surface for providing an image on said surface corresponding point by point to an image stored by said storage tube, the scanning of said image receiving surface producing an image substantially across said image receiving surface which is narrower in the direction of movement of said image receiving surface for producing successive incremental portions of the complete image which together provide a composite with movement of the image receiving surface.
Claim 16
Independent Claim 199 words
The method of producing a permanent copy of information stored on a cathode ray storage tube comprising: deflecting the electron beam of said cathode ray storage tube over a storage surface thereof in first and second directions, pulse modulating the electron beam of said cathode ray storage tube with a pulse duration less than necessary to write information on said storage tube, moving a sensitive image receiving surface in a first direction corresponding to a first direction of deflection in said storage tube, while scanning said surface in a second direction corresponding to said second direction of deflection in said storage tube, and coupling the storage tube output, derived from said storage tube in response to pulse modulation of said electron beam, for controlling the scanning intensity of said surface for providing an image on said surface corresponding point by point to an image stored by said storage tube, the scanning of said image receiving surface producing an image substantially across said image receiving surface which is narrower in the direction of movement of said image receiving surface for producing successive incremental portions of the complete image which together provide a composite with movement of the image receiving surface.
Claim 17
Dependent Claim 281 words
Apparatus for providing a representation of electronically received information comprising: a cathode ray storage tube for receiving said electronically received information for storage at a first rate, the cathode ray storage tube including electron beam generation means and means for deflecting the electron beam over a storage surface thereof in first and second directions for storing the electronically received information, copying apparatus adapted selectively to provide a permanent copy of information stored by the storage tube, the copying apparatus including scanning means adapted for scanning in a given direction over and successively intercepting points on an image receiving surface which is sensitive to such interception to provide a permanent copy in response thereto, means for selectively initiating operation of the copying apparatus, deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of the copying apparatus scanning means during copying apparatus operation, means for also coupling the scanning signal from the deflection signal generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus operation for causing electron beam scanning of the information stored by the cathode ray storage tube in the first direction in substantial synchronism with the scanning in the given direction of the image receiving surface, means for reading out stored information from the cathode ray storage tube storage surface point by point as the scanning signal operates the deflection means thereof, and means for applying the output read out from the cathode ray tube storage surface to the copying apparatus to control the scanning means point by point on the image receiving surface for providing an image on such surface corresponding to the information stored by the storage tube.
Claim 18
Dependent Claim 281 words
Apparatus for providing a representation of electronically received information comprising: a cathode ray storage tube for receiving said electronically received information for storage at a first rate, the cathode ray storage tube including electron beam generation means and means for deflecting the electron beam over a storage surface thereof in first and second directions for storing the electronically received information, copying apparatus adapted selectively to provide a permanent copy of information stored by the storage tube, the copying apparatus including scanning means adapted for scanning in a given direction over and successively intercepting points on an image receiving surface which is sensitive to such interception to provide a permanent copy in response thereto, means for selectively initiating operation of the copying apparatus, deflection signal generation circuitry providing a scanning signal effective for bringing about scanning operation of the copying apparatus scanning means during copying apparatus operation, means for also coupling the scanning signal from the deflection signal generation circuitry to the deflecting means of the cathode ray storage tube during copying apparatus operation for causing electron beam scanning of the information stored by the cathode ray storage tube in the first direction in substantial synchronism with the scanning in the given direction of the image receiving surface, means for reading out stored information from the cathode ray storage tube storage surface point by point as the scanning signal operates the deflection means thereof, and means for applying the output read out from the cathode ray tube storage surface to the copying apparatus to control the scanning means point by point on the image receiving surface for providing an image on such surface corresponding to the information stored by the storage tube.
Claim 19
Dependent Claim 61 words
The apparatus according to claim 12 wherein the scanning signal provided by the deflection signal generation circuitry is effective for bringing about scanning operation at a second and slower rate compatible with scanning speed capacilities of the copying apparatus, the electron beam of the cathode ray storage tube operating in said first diRection in substantial synchronism therewith during copying apparatus operation.

References Cited (Backward Citations)

US3084213A Cited
US3414668A Cited
US3401299A Cited
US3426238A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-07-25 1976-01-24 1976-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-25 1980-01-24 1980-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-25 1984-01-24 1984-07-25 $7700.00 Window Closed / Lapsed

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