Patent US4229766A successfully refreshed from Google Patents.
US4229766A
Expired / Lapsed
US
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Scanning apparatus and method for operating the apparatus
Assignee: Siemens AG
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Filing: 1978-05-05
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Granted: 1980-10-21
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Expires: 1998-05-05
Abstract
Abstract Image scanning apparatus, such as an image pickup device with a photo cathode in a vacuum system or a flat display device with a thermal cathode, having at least one hole matrix for row and column control of the electron stream between its cathode and anode, and at least two separately controllable electrodes for controlling the rows and columns of each row of holes of the hole matrix, the electrodes being arranged in separate planes and tied together in jointly controllable groups permitting a small distance between the cathode and the anode thereby providing a flat camera or display in a television system.
Inventors
- 👤 Balint Sipos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:10
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/123; H01J31/125; H01J31/126; G; G09; G09G; G09G1/00; G09G1/20; H01J31/26; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N3/122
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
151 words
In apparatus which contains a cathode for electron emission and an anode on which the electrons impinge, an improved scanning system comprising: (a) at least one hole matrix having therein a plurality of holes, arranged in rows and columns, disposed between the cathode and the anode for row and column control of the electron stream; and (b) at least two separately controllable sets of electrodes disposed in at least two different planes parallel to the plane of said hole matrix for control of the holes in said matrix, with the electrodes in one of said planes arranged in plurality of groups each group comprising electrodes which are at a predetermined spacing from each other, said spacing being at least three rows or three columns, each of said groups being jointly controllable and the electrodes in a further plane grouped in jointly controllable electrode groups which comprise at least three adjacent electrodes.
Claim 2
Dependent Claim
151 words
In apparatus which contains a cathode for electron emission and an anode on which the electrons impinge, an improved scanning system comprising: (a) at least one hole matrix having therein a plurality of holes, arranged in rows and columns, disposed between the cathode and the anode for row and column control of the electron stream; and (b) at least two separately controllable sets of electrodes disposed in at least two different planes parallel to the plane of said hole matrix for control of the holes in said matrix, with the electrodes in one of said planes arranged in plurality of groups each group comprising electrodes which are at a predetermined spacing from each other, said spacing being at least three rows or three columns, each of said groups being jointly controllable and the electrodes in a further plane grouped in jointly controllable electrode groups which comprise at least three adjacent electrodes.
Claim 3
Dependent Claim
18 words
Apparatus according to claim 1 wherein more than two electrode planes are associated with a common hole matrix.
Claim 4
Dependent Claim
66 words
Apparatus according to claim 2 wherein said hole matrix comprises a member having horizontal grooves on one side and vertical grooves on the other side, said grooves running respectively in the direction of the rows and columns, said electrodes being disposed within said grooves, and wherein the point of intersection of electrodes on opposite sides of said matrix are always at a hole in said matrix.
Claim 5
Dependent Claim
22 words
Apparatus according to claim 1 wherein the number of electrode groups for the rows and columns is the same in all planes.
Claim 6
Dependent Claim
28 words
Apparatus according to claim 4 wherein, with a number of rows Z in each individual plane E, the number of electrode groups is an equal the E √Z.
Claim 7
Dependent Claim
56 words
Apparatus according to claim 1 wherein said apparatus comprises an image pick-up apparatus, said cathode comprises a photocathode for electron emission and further including an electrical component coupled in the anode circuit having a voltage drop which is determined by the electron stream flowing to said anode, from which component a video signal can be obtained.
Claim 8
Dependent Claim
13 words
Apparatus according to claim 6 wherein said apparatus comprises an image reproduction device.
Claim 9
Dependent Claim
21 words
Apparatus according to claim 1 wherein said apparatus comprises a flat display device and wherein said cathode comprises a thermal cathode.
Claim 10
Dependent Claim
42 words
Apparatus according to claim 8 wherein for each of the holes of the individual columns of said matrix at least two separately controllable electrodes are provided, said electrodes being arranged in separate planes parallel to the flat sides of said hole matrix.
Claim 11
Dependent Claim
33 words
Apparatus according to claim 9 wherein said anode contains fluorescent overlays in alignment with each three adjacent column electrodes, the fluorescent overlays each being adapted to provide one of the three primary colors.
Claim 12
Dependent Claim
10 words
Apparatus according to claim 10 wherein said overlays comprise stripes.
Claim 13
Independent Claim
304 words
A method of operating scanning apparatus which is disposed within a vacuum-tight enclosure and which includes a cathode for electron emission, an anode on which the electrons impinge and a scanning system which includes at least one hole matrix having therein a plurality of holes, arranged in rows and columns, disposed between the cathode and the anode for row and column control of the electron stream; and at least two separately controllable sets of electrodes disposed in at least two different planes parallel to the plane of said hole matrix for control of the holes in said matrix with the electrodes in one of said planes arranged in plurality of groups each group comprising electrodes which are at a predetermined spacing from each other, said spacing being at least three rows or three columns, each of said groups being jointly controllable and the electrodes in a further plane grouped in jointly controllable electrode groups which comprise at least three adjacent electrodes comprising; (a) sequentially and repetitively feeding control pulses which permit the electrons to pass to the individual control groups of said one electrode plane for sequential control of the rows; (b) simultaneously supplying a control pulse to a group of the control electrodes of the next plane, said pulse having a length which is equal to the time required to feed pulses to all of the individual control groups of said one plane; (c) sequentially feeding said pulse to subsequent groups in said next plane in synchronism with the feeding of a first control pulse to the first of the individual control groups in said one plane; and (d) similarly simultaneously sequentially and synchronously feeding to control groups in any further planes a control pulses having a duration corresponding to the duration required to sequence through all control groups of the previous plane.
Claim 14
Independent Claim
304 words
A method of operating scanning apparatus which is disposed within a vacuum-tight enclosure and which includes a cathode for electron emission, an anode on which the electrons impinge and a scanning system which includes at least one hole matrix having therein a plurality of holes, arranged in rows and columns, disposed between the cathode and the anode for row and column control of the electron stream; and at least two separately controllable sets of electrodes disposed in at least two different planes parallel to the plane of said hole matrix for control of the holes in said matrix with the electrodes in one of said planes arranged in plurality of groups each group comprising electrodes which are at a predetermined spacing from each other, said spacing being at least three rows or three columns, each of said groups being jointly controllable and the electrodes in a further plane grouped in jointly controllable electrode groups which comprise at least three adjacent electrodes comprising; (a) sequentially and repetitively feeding control pulses which permit the electrons to pass to the individual control groups of said one electrode plane for sequential control of the rows; (b) simultaneously supplying a control pulse to a group of the control electrodes of the next plane, said pulse having a length which is equal to the time required to feed pulses to all of the individual control groups of said one plane; (c) sequentially feeding said pulse to subsequent groups in said next plane in synchronism with the feeding of a first control pulse to the first of the individual control groups in said one plane; and (d) similarly simultaneously sequentially and synchronously feeding to control groups in any further planes a control pulses having a duration corresponding to the duration required to sequence through all control groups of the previous plane.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |