JPH01115393U - - Google Patents
Info
- Publication number
- JPH01115393U JPH01115393U JP961388U JP961388U JPH01115393U JP H01115393 U JPH01115393 U JP H01115393U JP 961388 U JP961388 U JP 961388U JP 961388 U JP961388 U JP 961388U JP H01115393 U JPH01115393 U JP H01115393U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- delay line
- signal
- comb filter
- composite 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
- 239000002131 composite material Substances 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図から第３図は本考案のビデオ・フロツピ
ーに対する記録・再生回路の実施例を示し、第１
図は一実施例の原理的なブロツク図、第２図およ
び第３図はそれぞれ本考案の他の実施例を示す回
路図、第４図および第５図はくし形フイルタ回路
および色差同時化回路の従来例を示す原理的なブ
ロツク図である。
１，６，１２，１３，１４，１５……遅延線路
、２，４……加算回路、３……反転アンプ、７，
８……スイツチング素子、１１……前段側スイツ
チング素子。
1 to 3 show embodiments of the recording/reproducing circuit for the video floppy according to the present invention.
The figure shows a basic block diagram of one embodiment, FIGS. 2 and 3 are circuit diagrams showing other embodiments of the present invention, and FIGS. 4 and 5 show a comb filter circuit and a color difference synchronization circuit. FIG. 2 is a theoretical block diagram showing a conventional example. 1, 6, 12, 13, 14, 15... Delay line, 2, 4... Addition circuit, 3... Inverting amplifier, 7,
8... Switching element, 11... Front-stage switching element.
Claims (1)
クロマ信号とに分離するために遅延線路、反転ア
ンプおよび加算回路とを有するくし形フイルタ回
路と、再生時に被再生信号に対して前記遅延線路
と同時間の遅延処理を施す遅延線路を有する再生
処理系回路とを備えたビデオ・フロツピーに対す
る記録・再生回路において、前記遅延線路を前記
くし形フイルタ回路および再生処理系回路の両回
路に共用し、前記遅延線路の前段に前記コンポジ
ツトビデオ信号と被再生信号との入力をいずれか
一方に選択する前段側スイツチング素子を設け、
前記遅延線路の後段側に前記両回路による処理信
号を出力する出力端子を設けたことを特徴とする
ビデオ・フロツピーに対する記録・再生回路。 A comb filter circuit includes a delay line, an inverting amplifier, and an adder circuit for separating a composite video signal into a luminance signal and a chroma signal during recording, and a comb filter circuit having a delay line, an inverting amplifier, and an adding circuit for separating a composite video signal into a luminance signal and a chroma signal during recording, and a comb filter circuit having a delay line, an inverting amplifier, and an adding circuit for separating a composite video signal into a luminance signal and a chroma signal. In a recording/reproducing circuit for a video floppy comprising a reproduction processing circuit having a delay line for performing delay processing, the delay line is shared by both the comb filter circuit and the reproduction processing circuit, and the delay line A front-stage switching element is provided at the front stage of the switching element for selecting input of either the composite video signal or the reproduced signal,
A recording/reproducing circuit for a video floppy, characterized in that an output terminal for outputting signals processed by the two circuits is provided on the downstream side of the delay line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP961388U JPH01115393U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP961388U JPH01115393U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115393U true JPH01115393U (en) | 1989-08-03 |
Family
ID=31216507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP961388U Pending JPH01115393U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115393U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117790A (en) * | 1981-12-30 | 1983-07-13 | Sony Corp | Processing circuit for video signal |
| JPS59141890A (en) * | 1983-02-03 | 1984-08-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device of video signal |
| JPS6132690A (en) * | 1984-07-25 | 1986-02-15 | Sony Corp | Recording and reproducting device of still picture |
-
1988
- 1988-01-29 JP JP961388U patent/JPH01115393U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117790A (en) * | 1981-12-30 | 1983-07-13 | Sony Corp | Processing circuit for video signal |
| JPS59141890A (en) * | 1983-02-03 | 1984-08-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device of video signal |
| JPS6132690A (en) * | 1984-07-25 | 1986-02-15 | Sony Corp | Recording and reproducting device of still picture |
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