JPS57148480A - Ghost removing device - Google Patents
Ghost removing deviceInfo
- 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
Links
- 238000002156 mixing Methods 0.000 abstract 2
- 238000005303 weighing Methods 0.000 abstract 2
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. moirĂ© 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.
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) |
-
1981
- 1981-03-09 JP JP56033481A patent/JPS57148480A/en active Pending
-
1982
- 1982-02-27 KR KR8200875A patent/KR890005340B1/en active
Also Published As
Publication number | Publication date |
---|---|
KR890005340B1 (en) | 1989-12-22 |
KR830009578A (en) | 1983-12-22 |
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