JPH0336276U - - Google Patents
Info
- Publication number
- JPH0336276U JPH0336276U JP9729589U JP9729589U JPH0336276U JP H0336276 U JPH0336276 U JP H0336276U JP 9729589 U JP9729589 U JP 9729589U JP 9729589 U JP9729589 U JP 9729589U JP H0336276 U JPH0336276 U JP H0336276U
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- signal
- terminal
- microcomputer
- video signal
- 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
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Description
第１図は本考案による映像信号方式判別回路を
含むビデオデイスクプレーヤの一例の構成図、第
２図はＮＴＳＣ方式及びＰＡＬ方式におけるカウ
ンタの動作を説明するタイミングチヤート図であ
る。
１はビデオデイスク、２は光学ピツクアツプ、
３はアンプ、４は復調器、５は同期分離回路、６
はビデオ出力端子、７は水平・垂直同期分離回路
、８はサーボ回路、９はスピンドルモータ、１０
はカウンタ、１１，１５は抵抗器、１２はコンデ
ンサ、１３，１４はダイオード、１６はマイクロ
コンピユータである。
FIG. 1 is a block diagram of an example of a video disc player including a video signal system discriminating circuit according to the present invention, and FIG. 2 is a timing chart illustrating the operation of a counter in the NTSC system and the PAL system. 1 is a video disk, 2 is an optical pickup,
3 is an amplifier, 4 is a demodulator, 5 is a synchronous separation circuit, 6
is a video output terminal, 7 is a horizontal/vertical synchronization separation circuit, 8 is a servo circuit, 9 is a spindle motor, 10
1 is a counter, 11 and 15 are resistors, 12 is a capacitor, 13 and 14 are diodes, and 16 is a microcomputer.
Claims (1)
る少くとも第１及び第２の方式の映像信号を扱う
装置を駆動するに当り、 上記装置の駆動を制御するマイクロコンピユー
タと、 少くとも計数端子、クリア端子及び計数値の出
力端子を有するカウンタとが設けられ、 上記映像信号から分離された水平同期信号が上
記計数端子に供給され、 上記映像信号から分離された垂直同期信号が所
定量遅延されて上記クリア端子に供給され、 上記垂直同期信号が直接上記マイクロコンピユ
ータの第１の入力ポートに供給されると共に、 上記計数値の出力端子に得られる信号が所定の
デコード手段を介して上記マイクロコンピユータ
の第２の入力ポートに供給されて上記第１及び第
２の方式の判別が行われるようにした映像信号方
式判別回路。[Claims for Utility Model Registration] In driving a device that handles video signals of at least first and second systems in which the number of horizontal synchronization signals between vertical synchronization signals is different from each other, a microcomputer that controls the drive of the device. and a counter having at least a counting terminal, a clear terminal, and a count value output terminal, a horizontal synchronization signal separated from the video signal is supplied to the counting terminal, and a vertical synchronization signal separated from the video signal is supplied. The signal is delayed by a predetermined amount and supplied to the clear terminal, the vertical synchronization signal is directly supplied to the first input port of the microcomputer, and the signal obtained at the output terminal of the count value is supplied to a predetermined decoding means. a video signal system discriminating circuit which is supplied to a second input port of the microcomputer through a video signal system to discriminate between the first and second systems;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9729589U JPH0336276U (en) | 1989-08-21 | 1989-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9729589U JPH0336276U (en) | 1989-08-21 | 1989-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0336276U true JPH0336276U (en) | 1991-04-09 |
Family
ID=31646443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9729589U Pending JPH0336276U (en) | 1989-08-21 | 1989-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327533A (en) * | 1993-05-20 | 1994-11-29 | Okamura Corp | Chair |
-
1989
- 1989-08-21 JP JP9729589U patent/JPH0336276U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327533A (en) * | 1993-05-20 | 1994-11-29 | Okamura Corp | Chair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0336276U (en) | ||
| JPS60106679U (en) | video game device | |
| JPS6035888A (en) | Rotary head type magnetic picture recording and reproducing device | |
| JPH0134512B2 (en) | ||
| JPS631506Y2 (en) | ||
| JPS55100792A (en) | Video recording and reproducing device | |
| JP2651306B2 (en) | Optical video disc player | |
| JPS6273682U (en) | ||
| JPH0411433Y2 (en) | ||
| JPH01169887U (en) | ||
| JPH0352866U (en) | ||
| JPH01268377A (en) | Video disk reproducing device | |
| JPS6145767U (en) | Video disc player disc size detection device | |
| JPS61111278U (en) | ||
| JPS62114577U (en) | ||
| JPH0376256U (en) | ||
| JPH01156671U (en) | ||
| JPS59140582U (en) | Synchronous separation circuit | |
| JPS6344583U (en) | ||
| JPS639397A (en) | Television photoplayer device | |
| JPS58212276A (en) | Magnetic recorder and reproducer | |
| JPH01272378A (en) | Field deciding circuit for television signal | |
| JPS59106276U (en) | Video signal measuring device | |
| JPS6136281B2 (en) | ||
| JPS60180330U (en) | video disc playback device |