JPH0241575U - - Google Patents
Info
- Publication number
- JPH0241575U JPH0241575U JP11906288U JP11906288U JPH0241575U JP H0241575 U JPH0241575 U JP H0241575U JP 11906288 U JP11906288 U JP 11906288U JP 11906288 U JP11906288 U JP 11906288U JP H0241575 U JPH0241575 U JP H0241575U
- Authority
- JP
- Japan
- Prior art keywords
- synchronization signal
- signal
- tape recorder
- video tape
- level
- 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
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 2
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第1図はこの考案の各部波形図、第2図はこの
考案の一実施例を示すビデオテープレコーダの記
録系のブロツク図、第3図は第2図の各部信号波
形図、第4図は従来のビデオテープレコーダの記
録系のブロツク図、第5図は第4図の複合映像信
号の波形図、第6図は第4図の各部信号波形図、
第7図はダビングをするためのビデオテープレコ
ーダのブロツク図である。
図において、1はビデオテープ、2はヘツド、
3はFM変調器、9は複合映像信号、10はAG
C装置、12は同期信号、15は制御増幅器出力
、21は垂直同期分離器、23は加算器、24は
出力、25は出力信号、27はレベル補正器、2
9は入力、30はANDゲートを示す。なお、図
中、同一符号は同一、または相当部分を示す。
Fig. 1 is a waveform diagram of each part of this invention, Fig. 2 is a block diagram of a recording system of a video tape recorder showing an embodiment of this invention, Fig. 3 is a signal waveform diagram of each part of Fig. 2, and Fig. 4 is a diagram of signal waveforms of each part of Fig. 2. A block diagram of the recording system of a conventional video tape recorder, FIG. 5 is a waveform diagram of the composite video signal of FIG. 4, FIG. 6 is a waveform diagram of each part of the signal in FIG. 4,
FIG. 7 is a block diagram of a video tape recorder for dubbing. In the figure, 1 is a videotape, 2 is a head,
3 is an FM modulator, 9 is a composite video signal, and 10 is an AG
C device, 12 is a synchronization signal, 15 is a control amplifier output, 21 is a vertical synchronization separator, 23 is an adder, 24 is an output, 25 is an output signal, 27 is a level corrector, 2
9 indicates an input, and 30 indicates an AND gate. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
帰レベルを白レベル付近とする同期信号修正手段
を持つことを特徴とするビデオテープレコーダ。 A video tape recorder comprising synchronization signal modification means for adjusting the return level of at least one vertical synchronization signal pulse to near a white level.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11906288U JPH0241575U (en) | 1988-09-09 | 1988-09-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11906288U JPH0241575U (en) | 1988-09-09 | 1988-09-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0241575U true JPH0241575U (en) | 1990-03-22 |
Family
ID=31363965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11906288U Pending JPH0241575U (en) | 1988-09-09 | 1988-09-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0241575U (en) |
-
1988
- 1988-09-09 JP JP11906288U patent/JPH0241575U/ja active Pending
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