JPS6147580U - Color video signal reproducing device - Google Patents
Color video signal reproducing deviceInfo
- Publication number
- JPS6147580U JPS6147580U JP1984130411U JP13041184U JPS6147580U JP S6147580 U JPS6147580 U JP S6147580U JP 1984130411 U JP1984130411 U JP 1984130411U JP 13041184 U JP13041184 U JP 13041184U JP S6147580 U JPS6147580 U JP S6147580U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reproduced
- circuit
- output
- color video
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
- H03H21/002—Filters with a particular frequency response
- H03H21/0023—Comb filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案装置の構成を示すブロック系統図、第2
図、第3図及び第4図は夫々本考案装置の各実施例を示
すブロック系統図である。
1・・・入力端子、2・・・第1の信号処理回路、3・
・・第2の信号処理回路、4・・・遅延手段、5・・・
混合回路、6・・・再生カラー映像信号出力端子、9・
・・磁気テープ、11・・・高城フィルタ、12・・・
低域フィルタ、13・・・FM復調器、14・・・再生
搬送色信号処理回路、15,19・・・IH遅延回路、
16・・・AM変調器、17・・・超音波遅延線路、1
8・・・謀復調器、20.22・・・減算回路、21・
・・リミツタ。Figure 1 is a block system diagram showing the configuration of the device of the present invention;
3 and 4 are block system diagrams showing respective embodiments of the device of the present invention. DESCRIPTION OF SYMBOLS 1... Input terminal, 2... First signal processing circuit, 3.
...Second signal processing circuit, 4...Delay means, 5...
Mixing circuit, 6... Reproduction color video signal output terminal, 9.
...Magnetic tape, 11...Takagi filter, 12...
Low-pass filter, 13...FM demodulator, 14...Reproduction carrier color signal processing circuit, 15, 19...IH delay circuit,
16... AM modulator, 17... Ultrasonic delay line, 1
8... Demodulator, 20.22... Subtraction circuit, 21.
...Limitsuta.
Claims (2)
第1及び第2の信号処理回路のうち、該第1の信号処理
回路より再生輝度信号を取りし、かつ、隣接トラックか
らのクロストーク信号を除去するためのくし形フィルタ
を有する該第2の信号処理回路より再生搬送色信号を取
り出し、該再生輝度信号及び該再生搬送色信号を混合回
路により夫々混合して再生カラー映像信号として出力す
るカラー映像信号再生装置において、上記混合回路に供
給される上記再生輝度信号を、上記再生搬送色信号に対
して相対的に1水平走査期間遅延する遅延手段を設けて
なるカラー映像信号再生装置。(1) Of the first and second signal processing circuits to which multiplexed signals reproduced from the recording medium are respectively supplied, the reproduced luminance signal is taken from the first signal processing circuit, and crosstalk from adjacent tracks is detected. A reproduced carrier color signal is extracted from the second signal processing circuit having a comb-shaped filter for removing the signal, and the reproduced luminance signal and the reproduced carrier color signal are mixed by a mixing circuit and output as a reproduced color video signal. A color video signal reproducing device comprising a delay means for delaying the reproduced luminance signal supplied to the mixing circuit by one horizontal scanning period relative to the reproduced carrier color signal.
1水平走査期間遅延する遅延回路と、該遅延回路の出力
信号と該再生輝度信号とを夫々減算する第1の減算回路
と、該第1の減算回路の出力信号を振幅制限するリミツ
タと、該遅延回路の出力信号から該リミツタの出力信号
を差し引いてノイズの低減された再生輝度信号を出力す
る第2の減算回路とよりなる実用新案登録請求の範囲第
1項記載のカラー映像信号再生装置。(2) the delay means includes a delay circuit that is supplied with the reproduced luminance signal and delays it by one horizontal scanning period; and a first subtraction circuit that subtracts the output signal of the delay circuit and the reproduced luminance signal, respectively; A limiter that limits the amplitude of the output signal of the first subtraction circuit, and a second subtraction circuit that subtracts the output signal of the limiter from the output signal of the delay circuit to output a reproduced luminance signal with reduced noise. A color video signal reproducing device according to claim 1 of the utility model registration claim.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984130411U JPS6147580U (en) | 1984-08-30 | 1984-08-30 | Color video signal reproducing device |
KR2019850009311U KR890007510Y1 (en) | 1984-08-30 | 1985-07-23 | Picture reproducers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984130411U JPS6147580U (en) | 1984-08-30 | 1984-08-30 | Color video signal reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6147580U true JPS6147580U (en) | 1986-03-29 |
Family
ID=15033622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984130411U Pending JPS6147580U (en) | 1984-08-30 | 1984-08-30 | Color video signal reproducing device |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6147580U (en) |
KR (1) | KR890007510Y1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62135095A (en) * | 1985-12-06 | 1987-06-18 | Sony Corp | Luminance signal processing method for video taperecorder |
-
1984
- 1984-08-30 JP JP1984130411U patent/JPS6147580U/en active Pending
-
1985
- 1985-07-23 KR KR2019850009311U patent/KR890007510Y1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62135095A (en) * | 1985-12-06 | 1987-06-18 | Sony Corp | Luminance signal processing method for video taperecorder |
Also Published As
Publication number | Publication date |
---|---|
KR890007510Y1 (en) | 1989-10-26 |
KR860002422U (en) | 1986-03-31 |
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