JPH0382988U - - Google Patents

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Publication number
JPH0382988U
JPH0382988U JP1990056426U JP5642690U JPH0382988U JP H0382988 U JPH0382988 U JP H0382988U JP 1990056426 U JP1990056426 U JP 1990056426U JP 5642690 U JP5642690 U JP 5642690U JP H0382988 U JPH0382988 U JP H0382988U
Authority
JP
Japan
Prior art keywords
carrier frequency
signal
color signal
compensation circuit
output
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.)
Granted
Application number
JP1990056426U
Other languages
Japanese (ja)
Other versions
JPH0713335Y2 (en
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 filed Critical
Publication of JPH0382988U publication Critical patent/JPH0382988U/ja
Application granted granted Critical
Publication of JPH0713335Y2 publication Critical patent/JPH0713335Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • 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
    • H04N9/87—Regeneration of colour television signals
    • 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
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/86—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system
    • 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
    • H04N9/87—Regeneration of colour television signals
    • H04N9/89—Time-base error compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はＮＴＳＣ方式を採用したビデオテープ
レコーダーのスキユー補償回路の概要図、第２図
はＰＡＬ方式を採用したビデオテープレコーダー
のカラー信号補償回路の概要図、第３図はＳＥＣ
ＡＭ方式を採用したビデオテープレコーダーから
ロングプレイＬＰモードでデータを記録するとき
ビデオテープに記録されるカラー信号を示すパタ
ーン図、第４図乃至第７図のＡ−ＣはＳＥＣＡＭ
方式からＬＰモードの多機能時においてカラー信
号の搬送波周波数とスキユーが補償された搬送波
周波数を示した説明図、第８図は本考案によるカ
ラー信号補償回路が採用されたビデオテープレコ
ーダーの概要図、第９図は第８図に示されたカラ
ー信号補償回路の実施例示図、第１０図のＡ−Ｄ
及び第１１図のＡ−Ｎは第９図に示されたカラー
信号補償回路の作動を説明するための波形図であ
る。 ３０……搬送波周波数検出手段、３１，４３…
…４．２５ＭＨｚフイルター、３２……積分器、
３３……比較器、４０……搬送波周波数選択手段
、４２……平衡変調器、４４……４．４ＭＨｚフ
イルター、４５……アナログスイツチ、５０……
搬送波周波数補償判別手段、５１……隣接トラツ
クジヤンプ検出部、５２……搬送波周波数交番検
出部、５３……スイツチング部、ＶＲ……基準電
圧。 Figure 1 is a schematic diagram of a skew compensation circuit for a video tape recorder that uses the NTSC system, Figure 2 is a schematic diagram of a color signal compensation circuit for a video tape recorder that uses the PAL system, and Figure 3 is a schematic diagram of a skew compensation circuit for a video tape recorder that uses the PAL system.
Pattern diagrams showing color signals recorded on a videotape when data is recorded in long play LP mode from a videotape recorder adopting the AM system, A to C in FIGS. 4 to 7 are SECAM.
An explanatory diagram showing the carrier frequency of the color signal and the skew-compensated carrier frequency in the multi-function mode of the LP mode from the system; FIG. 8 is a schematic diagram of a video tape recorder in which the color signal compensation circuit according to the present invention is adopted; FIG. 9 is a diagram illustrating an embodiment of the color signal compensation circuit shown in FIG. 8, and A-D in FIG.
and A-N in FIG. 11 are waveform diagrams for explaining the operation of the color signal compensation circuit shown in FIG. 9. 30...Carrier frequency detection means, 31, 43...
...4.25MHz filter, 32...integrator,
33...Comparator, 40...Carrier frequency selection means, 42...Balanced modulator, 44...4.4MHz filter, 45...Analog switch, 50...
Carrier wave frequency compensation determining means, 51...adjacent track jump detection section, 52...carrier frequency alternation detection section, 53...switching section, VR...reference voltage.

Claims (1)

【実用新案登録請求の範囲】 (1) ロングプレイモード遂行機能を内蔵した映
像記録再生機において、カラー信号再生系から出
力されるカラー信号の搬送波周波数（４．２５Ｍ
Ｈｚ，４．４ＭＨｚ）中、何れか一つの搬送波周
波数を検出する搬送波周波数検出手段と；上記搬
送波周波数検出手段の出力信号によつてカラー信
号再生系のカラー信号の４．２５ＭＨｚ及び４．
４ＭＨｚ搬送波周波数がおのおの４．４ＭＨｚ及
び４．２５ＭＮｚに変換された搬送波周波数を選
択する搬送波周波数選択手段と；上記搬送波周波
数検出手段の出力信号と水平同期信号ＨＳとによ
りカラー信号の補償すべきか否かを判別して上記
カラー信号再生系及び上記搬送波周波数選択手段
の出力信号を選択出力する搬送波周波数補償判別
手段とを包含して成ることを特徴とする映像記録
再生機のロングプレイモード多機能時におけるカ
ラー信号の補償回路。 (2) 上記搬送波周波数検出手段はカラー信号再
生系から出力されるカラー信号の搬送波周波数（
４．２５ＭＨｚ，４．４ＭＨｚ）中４．２５ＭＨ
ｚ（４．４ＭＨｚ）搬送波周波数のカラー信号を
検出する４．２５ＭＨｚ（４．４ＭＨｚ）フイル
ターと、上記フイルターの出力端に接続されて出
力信号を積分する積分器と、上記積分器の出力信
号と設定された基準電圧をそれぞれ入力として比
較する比較器とによつて構成されることを特徴と
する請求項第１項に記載のカラー信号の補償回路
。 (3) 上記搬送波周波数選択手段は任意の発振周
波数で発振する発振器の発振信号とカラー信号再
生系から出力されるカラー信号とをおのおの入力
として平衡変調する平衡変調器と、上記平衡変調
器の出力信号から４．２５ＭＨｚ及び４．４ＭＨ
ｚ搬送波周波数のカラー信号を検出するフイルタ
ーと、上記搬送波周波数検出手段内の比較器の出
力信号によつてカラー信号再生系のカラー信号の
両搬送波周波数を反対に交番するよう上記４．２
５ＭＨｚフイルター及び４．４ＭＨｚフイルター
の出力信号を選択するアナログスイツチと、上記
アナログスイツチの出力信号のレベルを調節する
レベル調整器とから構成されることを特徴とする
請求項第１項に記載のカラー信号補償回路。 (4) 上記搬送波周波数補償判別手段は再生映像
信号の水平同期信号を入力として隣接トラツクに
ジヤンプした映像信号であるかを検出する隣接ト
ラツクジヤンプ検出部と、上記隣接トラツク検出
部及び搬送波周波数検出手段の出力信号として隣
接トラツクにジヤンプしたとき搬送波周波数が交
番されるかを検出する搬送波周波数交番検出部と
、上記隣接トラツク検出部、搬送波周波数交番検
出部の出力信号及びＬＰモード制御信号によつて
カラー信号の搬送波周波数が交番されるようカラ
ー信号再生系及び搬送波周波数選択手段の出力信
号を選択するスイツチング部とより構成されるこ
とを特徴とする請求項第１項に記載のカラー信号
補償回路。 (5) 上記隣接トラツクジヤンプ検出部は水平同
期信号を入力として０．５Ｈのパルス幅で変換出
力するモノマルチバイブレータと、上記モノマル
チバイブレータの出力信号を０．５Ｈ遅延させる
遅延器と、上記モノマルチバイブレータと遅延器
の出力信号を組み合わせするアンドゲートで接続
構成されることを特徴とする請求項第１項に記載
のカラー信号補償回路。 (6) 上記搬送波周波数交番検出部は搬送波周波
数検出手段と出力信号と０．５Ｈ遅延器で遅延さ
れた両信号を入力するエクスクルーシブノアゲー
トと、上記エクスクルーシブノアゲート出力と隣
接トラツクジヤンプ検出部の出力を組み合わすア
ンドゲートに連結構成されることを特徴とする請
求項第４項に記載のカラー信号補償回路。 (7) 上記スイツチング部は隣接トラツクジヤン
プ検出部及び搬送波周波数交番検出部の出力信号
によつてトグルされＬＰモード制御信号によつて
リセツトされるフリツプフロツプと、上記フリツ
プフロツプの出力信号とＬＰモード制御信号をそ
れぞれ入力として組み合わせするアンドゲートと
、上記アンドゲートの出力によつてスイツチング
されるアナログスイツチから構成されることを特
徴とする請求項第４項に記載のカラー信号補償回
路。 (8) 映像記録再生機はＶＴＲであることを特徴
とする請求項第１項乃至第７項のうちいずれか一
項記載のカラー信号補償回路。 (9) 映像記録再生機はＳＥＣＡＭまたはＭＥＳ
ＥＣＡＭ方式を採用したＶＴＲであることを特徴
とする請求項第１項乃至第８項のうちいずれか一
項記載のカラー信号補償回路。 (10) 映像記録再生機はＶＣＲであることを特徴
とする請求項第１項乃至第７項のうちいずれか一
項記載のカラー信号補償回路。 (11) 映像記録再生機はＳＥＣＡＭまたはＭＥＳ
ＥＣＡＭ方式を採用したＶＣＲであることを特徴
とする請求項第１項乃至第８項のうちいずれか一
項記載のカラー補償回路。[Claims for Utility Model Registration] (1) In a video recording and reproducing device with a built-in long play mode execution function, the carrier frequency (4.25 M
4.25 MHz and 4.4 MHz) of the color signal of the color signal reproduction system by the output signal of the carrier frequency detection means.
carrier frequency selection means for selecting carrier frequencies obtained by converting the 4 MHz carrier frequency into 4.4 MHz and 4.25 MNz, respectively; and whether or not the color signal should be compensated by the output signal of the carrier frequency detection means and the horizontal synchronization signal HS. carrier frequency compensation determining means for selectively outputting the output signal of the color signal reproducing system and the carrier frequency selecting means by determining the color signal reproducing system and the carrier frequency selecting means; Color signal compensation circuit. (2) The carrier wave frequency detecting means detects the carrier wave frequency (
4.25MHz, 4.4MHz)
a 4.25 MHz (4.4 MHz) filter that detects a color signal with a carrier frequency of 2. The color signal compensation circuit according to claim 1, further comprising a comparator for comparing set reference voltages as inputs. (3) The carrier frequency selection means includes a balanced modulator that balancedly modulates an oscillation signal of an oscillator that oscillates at an arbitrary oscillation frequency and a color signal output from a color signal reproduction system as inputs, and an output of the balanced modulator. 4.25MHz and 4.4MHz from signal
4.2 above so that both carrier frequencies of the color signal of the color signal reproduction system are alternated in opposite directions by a filter that detects the color signal of the z carrier frequency and an output signal of the comparator in the carrier frequency detection means.
2. The color according to claim 1, comprising an analog switch for selecting output signals of a 5 MHz filter and a 4.4 MHz filter, and a level adjuster for adjusting the level of the output signal of the analog switch. Signal compensation circuit. (4) The carrier frequency compensation determination means includes an adjacent track jump detection section that receives the horizontal synchronization signal of the reproduced video signal and detects whether the video signal has jumped to an adjacent track, and the adjacent track detection section and carrier frequency detection means. A carrier frequency alternation detection section detects whether the carrier frequency is alternated when jumping to an adjacent track as an output signal of the track, and a carrier frequency alternation detection section detects whether the carrier frequency is alternated when jumping to an adjacent track. 2. The color signal compensation circuit according to claim 1, further comprising a color signal reproduction system and a switching section for selecting the output signal of the carrier frequency selection means so that the carrier frequency of the signal is alternated. (5) The adjacent track jump detection section includes a mono multivibrator that inputs a horizontal synchronizing signal and converts and outputs it with a pulse width of 0.5H, a delay device that delays the output signal of the mono multivibrator by 0.5H, and a delay device that delays the output signal of the mono multivibrator by 0.5H. 2. The color signal compensation circuit according to claim 1, wherein the color signal compensation circuit is connected by an AND gate that combines the output signals of the multivibrator and the delay device. (6) The carrier frequency alternation detection section includes a carrier frequency detection means, an exclusive NOR gate that inputs the output signal and both signals delayed by a 0.5H delay device, and the output of the exclusive NOR gate and the output of the adjacent track jump detection section. 5. The color signal compensation circuit according to claim 4, wherein the color signal compensation circuit is connected to an AND gate that combines the following. (7) The switching section includes a flip-flop which is toggled by the output signals of the adjacent track jump detection section and the carrier frequency alternation detection section and is reset by the LP mode control signal, and the output signal of the flip-flop and the LP mode control signal. 5. The color signal compensation circuit according to claim 4, comprising an AND gate that is combined as an input, and an analog switch that is switched by the output of the AND gate. (8) The color signal compensation circuit according to any one of claims 1 to 7, wherein the video recording/reproducing device is a VTR. (9) Video recording/playback device is SECAM or MES
9. The color signal compensation circuit according to claim 1, wherein the color signal compensation circuit is a VTR adopting an ECAM system. (10) The color signal compensation circuit according to any one of claims 1 to 7, wherein the video recording/reproducing device is a VCR. (11) Video recording/playback device is SECAM or MES
9. The color compensation circuit according to claim 1, wherein the color compensation circuit is a VCR employing an ECAM system.
JP1990056426U 1989-12-16 1990-05-29 Color signal compensating circuit in long-play mode multi-function of video recorder / player Expired - Lifetime JPH0713335Y2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2019890019087U KR920006751Y1 (en) 1989-12-16 1989-12-16 Color signal compensating circuit of vtr
KR1989-19087 1989-12-16

Publications (2)

Publication Number Publication Date
JPH0382988U true JPH0382988U (en) 1991-08-23
JPH0713335Y2 JPH0713335Y2 (en) 1995-03-29

Family

ID=19293274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990056426U Expired - Lifetime JPH0713335Y2 (en) 1989-12-16 1990-05-29 Color signal compensating circuit in long-play mode multi-function of video recorder / player

Country Status (5)

Country Link
JP (1) JPH0713335Y2 (en)
KR (1) KR920006751Y1 (en)
CN (1) CN1031095C (en)
FR (1) FR2656190B1 (en)
RU (1) RU2100912C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005328992A (en) * 2004-05-19 2005-12-02 Maruka:Kk Electric unlocking device of game machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100382007B1 (en) * 1995-12-20 2003-08-21 삼성테크윈 주식회사 High magnification zoom lens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759866C2 (en) * 1976-10-29 1983-10-13 Ampex Corp., 94063 Redwood City, Calif. Arrangement for the selective insertion of a digital synchronization word in at least one digitally coded data sequence clocked at a predetermined frequency to an input
JPS6033033B2 (en) * 1977-11-21 1985-07-31 ソニー株式会社 Color video signal recording/playback device
JPS58100582A (en) * 1981-12-10 1983-06-15 Toshiba Corp Television signal automatic discrimination and switching circuit
JPS5914471U (en) * 1982-07-20 1984-01-28 日本ビクター株式会社 Image quality improvement circuit for color video signals
US4672469A (en) * 1983-08-26 1987-06-09 Victor Company Of Japan, Ltd. Delay time adjusting system for video signal reproducing apparatus having heads scanning across multiple tracks
JPS60169294A (en) * 1984-02-13 1985-09-02 Sony Corp Video tape recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005328992A (en) * 2004-05-19 2005-12-02 Maruka:Kk Electric unlocking device of game machine
JP4568534B2 (en) * 2004-05-19 2010-10-27 株式会社丸加 Electric machine unlocking device

Also Published As

Publication number Publication date
FR2656190B1 (en) 1992-10-30
KR910012737U (en) 1991-07-30
FR2656190A1 (en) 1991-06-21
CN1052583A (en) 1991-06-26
RU2100912C1 (en) 1997-12-27
JPH0713335Y2 (en) 1995-03-29
KR920006751Y1 (en) 1992-09-26
CN1031095C (en) 1996-02-21

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