US3648283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for displaying bearing markers on a radar screen
Assignee: Fried Krupp AG
•
Filing: 1969-07-11
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Granted: 1972-03-07
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Expires: 1989-07-11
Abstract
Abstract Apparatus for use with a position-finding system that operates according to the reflected beam principle. This position-finding system, e.g., a radar system, has a revolving beam-receiving antenna as well as a cathode-ray display tube with a deflection system arranged to rotate in synchronism with the antenna. The apparatus according to the present invention is intended to provide a display of one or more radially extending traces on the screen of the cathode-ray tube at selectable angular positions thereof to provide reference bearing information to the operator of the system. The apparatus includes a memory device, connected to rotate in synchronism with the antenna, for storing signals at preselected angular positions on its surface. The apparatus further includes means to write signals into or erase signals from the memory device and means to repeatedly read out these signals from the memory device during each revolution thereof to display a bearing trace on the cathode-ray tube screen in response to each signal when read.
Inventors
- 👤 Carl Wilhelm Busch
- 👤 Kurt Scheer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:38
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/22
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
179 words
Apparatus for use with a reflected beam position-finding system which has a revolving beam-receiving antenna and a cathode-ray tube for display of beam-reflecting objects, said tube having a deflection system arranged to rotate in synchronism with said antenna, said apparatus comprising, in combination: a. memory means, connected to rotate in synchronism with said antenna, for storing signals at preselected angular positions of said antenna and said deflection system of said cathode-ray tube; b. means connected to said memory means for writing signals into said memory means at preselected angular positions of said memory means and for selectively erasing signals from said memory means; and c. means, connected to said memory means and to said cathode-ray tube, for repeatedly reading said signals from said memory means during each rotation of said memory means and for causing said cathode-ray tube to display a bearing trace in response to each signal when read; whereby said apparatus is operative to provide a display of one or more bearing traces on the screen of said cathode-ray tube at selectable angular positions around said screen.
Claim 2
Dependent Claim
179 words
Apparatus for use with a reflected beam position-finding system which has a revolving beam-receiving antenna and a cathode-ray tube for display of beam-reflecting objects, said tube having a deflection system arranged to rotate in synchronism with said antenna, said apparatus comprising, in combination: a. memory means, connected to rotate in synchronism with said antenna, for storing signals at preselected angular positions of said antenna and said deflection system of said cathode-ray tube; b. means connected to said memory means for writing signals into said memory means at preselected angular positions of said memory means and for selectively erasing signals from said memory means; and c. means, connected to said memory means and to said cathode-ray tube, for repeatedly reading said signals from said memory means during each rotation of said memory means and for causing said cathode-ray tube to display a bearing trace in response to each signal when read; whereby said apparatus is operative to provide a display of one or more bearing traces on the screen of said cathode-ray tube at selectable angular positions around said screen.
Claim 3
Dependent Claim
21 words
The apparatus defined in claim 1, wherein said position-finding system is a radar system suitable for use on a movable vehicle.
Claim 4
Dependent Claim
42 words
adjustable pointer means, arranged coaxially with said contact disc means, to come in contact with said at least one electrical contact during each revolution of said contact disc means, said pointer means being manually rotatable about its axis to selected angular positions;
Claim 5
Dependent Claim
42 words
adjustable pointer means, arranged coaxially with said contact disc means, to come in contact with said at least one electrical contact during each revolution of said contact disc means, said pointer means being manually rotatable about its axis to selected angular positions;
Claim 6
Dependent Claim
13 words
magnetic head means for writing, reading and erasing signals on said magnetizable layer.
Claim 7
Dependent Claim
13 words
magnetic head means for writing, reading and erasing signals on said magnetizable layer.
Claim 8
Dependent Claim
28 words
means, connecting said light pencil means to said memory means, for writing a signal into said memory means in response to a signal from said light pencil means.
Claim 9
Dependent Claim
28 words
means, connecting said light pencil means to said memory means, for writing a signal into said memory means in response to a signal from said light pencil means.
Claim 10
Dependent Claim
13 words
means connecting said adjustable pointer means to a source of electrical potential; and
Claim 11
Dependent Claim
13 words
means connecting said adjustable pointer means to a source of electrical potential; and
Claim 12
Dependent Claim
20 words
The apparatus defined in claim 1, wherein said cathode-ray tube is connected to provide a panoramic display of beam-reflecting objects.
Claim 13
Dependent Claim
13 words
The apparatus defined in claim 1, wherein said writing and erasing means includes:
Claim 14
Dependent Claim
11 words
means connecting said at least one contact to said memory means.
Claim 15
Dependent Claim
11 words
means connecting said at least one contact to said memory means.
Claim 16
Dependent Claim
31 words
The apparatus defined in claim 4, wherein said contact disc means has one contact for writing signals into said memory means and one contact for erasing signals from said memory means.
Claim 17
Dependent Claim
11 words
The apparatus defined in claim 4, wherein said memory means includes:
Claim 18
Dependent Claim
41 words
The apparatus defined in claim 1, further comprising means, connected to said reading and displaying means, for varying the intensity of different ones of the bearing traces in a different manner, thereby to provide said bearing traces with an identifying characteristic.
Claim 19
Dependent Claim
40 words
The apparatus defined in claim 1, further comprising means, connected to said reading and displaying means, for varying the intensity of each of the bearing traces in dependence upon the distance of a reflecting object associated with each bearing trace.
Claim 20
Dependent Claim
41 words
The apparatus defined in claim 1, further comprising means, connected to said reading and displaying means, for varying the intensity of each of the bearing traces in dependence upon the length of time in which each bearing trace has been displayed.
Claim 21
Dependent Claim
13 words
The apparatus defined in claim 1, wherein said writing and erasing means includes:
References Cited (Backward Citations)
US3123824A
Cited
US3149325A
Cited
US3113211A
Cited
US3267470A
Cited
GB1086487A
Cited
US3383677A
Cited
US3328793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |