GB874530A - Improvements in or relating to arrangements for deriving picture signals from radar pictures - Google Patents

Improvements in or relating to arrangements for deriving picture signals from radar pictures

Info

Publication number
GB874530A
GB874530A GB4168359A GB4168359A GB874530A GB 874530 A GB874530 A GB 874530A GB 4168359 A GB4168359 A GB 4168359A GB 4168359 A GB4168359 A GB 4168359A GB 874530 A GB874530 A GB 874530A
Authority
GB
United Kingdom
Prior art keywords
interest
areas
amplifier
radar
camera
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4168359A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Publication of GB874530A publication Critical patent/GB874530A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/662—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/32—Velocity varied in dependence upon picture information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

874,530. Radar. TELEFUNKEN G.m.b.H. Dec. 8, 1959 [Dec. 11, 1958], No. 41683/59. Class 40(7) [Also in Group XL(b) ] A radar P.P.I. picture 4 is scanned by a television camera 5 for transmission to a remote display 11 or magnetic recorder, the scanning being controlled to proceed at normal speed over predetermined areas of interest and at an increased speed, e.g. 100 times normal, over the remaining areas of no interest by means of an arrangement comprising an appropriately formed mask 7<SP>1</SP> which is scanned in synchronism with camera 5 by a flying-spot scanner 7 and viewed by a photo-electric cell 8 whose output is applied through an amplifier 9 to control the scanning generator 6. The cell output may also be employed to eliminate the signals due to areas of no interest either by blocking picture amplifier 10 or by signal suppression in camera 5. Synchronizing pulses may be added to the picture signals as indicated by the dotted connection between generator 6 and amplifier 10. The television camera employs conventional scanning in Cartesian co-ordinates, the lines preferably running approximately perpendicular to the length of the areas of interest.
GB4168359A 1958-12-11 1959-12-08 Improvements in or relating to arrangements for deriving picture signals from radar pictures Expired GB874530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET15975A DE1081077B (en) 1958-12-11 1958-12-11 Method and device for narrow-band electrical transmission of one or more partial images from a radar image

Publications (1)

Publication Number Publication Date
GB874530A true GB874530A (en) 1961-08-10

Family

ID=7548091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4168359A Expired GB874530A (en) 1958-12-11 1959-12-08 Improvements in or relating to arrangements for deriving picture signals from radar pictures

Country Status (4)

Country Link
DE (1) DE1081077B (en)
FR (1) FR1240917A (en)
GB (1) GB874530A (en)
NL (1) NL246276A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415981A (en) * 1943-08-30 1947-02-18 Rca Corp Recorder for radio locators
DE1020693B (en) * 1956-04-04 1957-12-12 Dr Helmut Roeschlau Process for the magnetic storage of the impulses to be displayed in radar screens
DE1026802B (en) * 1957-02-13 1958-03-27 Siemens Ag Method for narrow-band electrical transmission of radar screen images

Also Published As

Publication number Publication date
NL246276A (en) 1964-02-25
FR1240917A (en) 1960-09-09
DE1081077B (en) 1960-05-05

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