JPS58149876U - Readout circuit for video signal storage device - Google Patents
Readout circuit for video signal storage deviceInfo
- Publication number
- JPS58149876U JPS58149876U JP4495782U JP4495782U JPS58149876U JP S58149876 U JPS58149876 U JP S58149876U JP 4495782 U JP4495782 U JP 4495782U JP 4495782 U JP4495782 U JP 4495782U JP S58149876 U JPS58149876 U JP S58149876U
- Authority
- JP
- Japan
- Prior art keywords
- storage device
- video signal
- signal
- output
- readout circuit
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (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図は従来の映像信号記憶装置の読出し回路を示すブ
ロック図、第２図は本考案の一実施例のブロック図であ
る。
１・・・・・・映像信号記憶装置、２・・・・・・デジ
タル／アナログ変換器、３・・・・・・ローパスフィル
タ、６および１１・・・・・・パーストゲート回路、７
・・・・・・位相比較器、′８・・・・・・ＶＣｏ、９
・・・・・・クロック回路。FIG. 1 is a block diagram showing a readout circuit of a conventional video signal storage device, and FIG. 2 is a block diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Video signal storage device, 2...Digital/analog converter, 3...Low pass filter, 6 and 11...Burst gate circuit, 7
・・・・・・Phase comparator, '8...VCo, 9
・・・・・・Clock circuit.
Claims (1)
憶装置の出力信号をアナログ信号に変換するデジタル／
アナログ変換器に印加して映像信号を読出すクロック回
路を備えた映像信号記憶装置読出し回路において、前記
デジタル／アナログ変換器の出力信号中のカラーバース
ト信号の位相と外部映像信号中のカラーバースト信号の
位相とを比較する位相比較器と、該位相比較器の出力に
より発振周波数が制御される電圧制御発振器とを備え、
前記クロック回路からの読出し信号を前記電圧制御発振
器の出力で位相変調するようにしてなることを特徴とす
る映像信号記憶装置の読出し回路。A digital/digital converter converting the output clock pulse into a video signal storage device and the output signal of the video storage device into an analog signal.
In a video signal storage device readout circuit including a clock circuit for reading a video signal by applying it to an analog converter, the phase of the color burst signal in the output signal of the digital/analog converter and the color burst signal in the external video signal are determined. and a voltage controlled oscillator whose oscillation frequency is controlled by the output of the phase comparator,
A readout circuit for a video signal storage device, characterized in that the readout signal from the clock circuit is phase-modulated by the output of the voltage controlled oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4495782U JPS58149876U (en) | 1982-03-31 | 1982-03-31 | Readout circuit for video signal storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4495782U JPS58149876U (en) | 1982-03-31 | 1982-03-31 | Readout circuit for video signal storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58149876U true JPS58149876U (en) | 1983-10-07 |
Family
ID=30055999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4495782U Pending JPS58149876U (en) | 1982-03-31 | 1982-03-31 | Readout circuit for video signal storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58149876U (en) |
-
1982
- 1982-03-31 JP JP4495782U patent/JPS58149876U/en active Pending
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