JPS5669902A - Disturbing wave eliminator - Google Patents

Disturbing wave eliminator

Info

Publication number
JPS5669902A
JPS5669902A JP14567979A JP14567979A JPS5669902A JP S5669902 A JPS5669902 A JP S5669902A JP 14567979 A JP14567979 A JP 14567979A JP 14567979 A JP14567979 A JP 14567979A JP S5669902 A JPS5669902 A JP S5669902A
Authority
JP
Japan
Prior art keywords
disturbing wave
antenna
wave
phase shifter
antennas
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.)
Pending
Application number
JP14567979A
Other languages
Japanese (ja)
Inventor
Yasuo Osada
Takeyo Nakagawa
Kimitake Utsunomiya
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14567979A priority Critical patent/JPS5669902A/en
Priority to US06/204,551 priority patent/US4395778A/en
Publication of JPS5669902A publication Critical patent/JPS5669902A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Noise Elimination (AREA)
  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To eliminate a disturbing wave by providing two antennas equal in wave surface shape for a desired wave and dfferent in propagation path length for a disturbing wave and by mixing outputs of both the antenna into one. CONSTITUTION:Signals from antennas 1 and 2 are selected via switch 7; for example, the output of antenna 2 is supplied to difference synthesizing circuit 4 via variable phase shifter 5, and that of antenna 1 to difference synthesizing circuit 4 via phase correcting circuit 3. The coil of phase shifter 5 is compacted spirally on the printed substrate. Variable phase shifter 5 is controlled by a DC voltage superposed upon a high frequency signal and transmitted from the receiver via the feeder to form a null point to a disturbing wave.
JP14567979A 1979-11-09 1979-11-09 Disturbing wave eliminator Pending JPS5669902A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14567979A JPS5669902A (en) 1979-11-09 1979-11-09 Disturbing wave eliminator
US06/204,551 US4395778A (en) 1979-11-09 1980-11-06 Undesired signal canceller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14567979A JPS5669902A (en) 1979-11-09 1979-11-09 Disturbing wave eliminator

Publications (1)

Publication Number Publication Date
JPS5669902A true JPS5669902A (en) 1981-06-11

Family

ID=15390574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14567979A Pending JPS5669902A (en) 1979-11-09 1979-11-09 Disturbing wave eliminator

Country Status (1)

Country Link
JP (1) JPS5669902A (en)

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