JPS57148480A - Ghost removing device - Google Patents

Ghost removing device

Info

Publication number
JPS57148480A
JPS57148480A JP56033481A JP3348181A JPS57148480A JP S57148480 A JPS57148480 A JP S57148480A JP 56033481 A JP56033481 A JP 56033481A JP 3348181 A JP3348181 A JP 3348181A JP S57148480 A JPS57148480 A JP S57148480A
Authority
JP
Japan
Prior art keywords
signal
circuit
circuits
supplied
detecting
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
JP56033481A
Other languages
Japanese (ja)
Inventor
Hisafumi Yamada
Choei Kuriki
Junya Saito
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 JP56033481A priority Critical patent/JPS57148480A/en
Priority to KR8200875A priority patent/KR890005340B1/en
Publication of JPS57148480A publication Critical patent/JPS57148480A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
    • G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Casings For Electric Apparatus (AREA)
  • Picture Signal Circuits (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

PURPOSE:To perform extremely excellent ghost removals, by preventing mixings of signals from weighing circuits by turning off each switch just before a detect signals arrives. CONSTITUTION:Series switches 191-19n are installed to weighing circuits 101-10n, respectively. A pulse P1 from a pulse generator 42 is supplied to a pilot pulse generator 20 and a pilot pulse P3 which becomes a high electric potential only at a short period at the begining end of a ghost detecting section is formed, and then, the signal P3 is mixed with the detect signal from an amplifier 37 at a mixing circuit 21. Moreover, detecting circuits 221-22n of the signal P3 are installed to each tap of a delay circuit 39, respectively, and the switches 191-19n are turned off just before the detect signal arrives. Thereafter, an output signal of a delay factor Dn at the final stage of the circuit 39 is supplied to a detecting circuit 23 of the signal P3 and the detect signal is supplied to the detecting circuits 221-22n and the switches 191-19n are turned on.
JP56033481A 1981-03-09 1981-03-09 Ghost removing device Pending JPS57148480A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56033481A JPS57148480A (en) 1981-03-09 1981-03-09 Ghost removing device
KR8200875A KR890005340B1 (en) 1981-03-09 1982-02-27 Tape cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56033481A JPS57148480A (en) 1981-03-09 1981-03-09 Ghost removing device

Publications (1)

Publication Number Publication Date
JPS57148480A true JPS57148480A (en) 1982-09-13

Family

ID=12387734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56033481A Pending JPS57148480A (en) 1981-03-09 1981-03-09 Ghost removing device

Country Status (2)

Country Link
JP (1) JPS57148480A (en)
KR (1) KR890005340B1 (en)

Also Published As

Publication number Publication date
KR890005340B1 (en) 1989-12-22
KR830009578A (en) 1983-12-22

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