JPS59121731U - Pilot signal generation circuit for tracking - Google Patents
Pilot signal generation circuit for trackingInfo
- Publication number
- JPS59121731U JPS59121731U JP1238383U JP1238383U JPS59121731U JP S59121731 U JPS59121731 U JP S59121731U JP 1238383 U JP1238383 U JP 1238383U JP 1238383 U JP1238383 U JP 1238383U JP S59121731 U JPS59121731 U JP S59121731U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- generation circuit
- signal
- pilot 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
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (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図は本考案によるトラッキング用パイロット信号発
生回路のブロック図、第２図は第１図に示す２重積分回
路の一例を示す回路図である。
１・・・クロックパルス発生回路、２・・・分周回路、
３・・・制御回路、４・・・スイッチ回路、５ａ〜５ｄ
・・・抵抗、６・・・２重積分回路、７．８・・・第１
、第２積分回路。FIG. 1 is a block diagram of a tracking pilot signal generation circuit according to the present invention, and FIG. 2 is a circuit diagram showing an example of the double integration circuit shown in FIG. 1. 1... Clock pulse generation circuit, 2... Frequency dividing circuit,
3... Control circuit, 4... Switch circuit, 5a to 5d
...Resistance, 6...Double integration circuit, 7.8...1st
, second integration circuit.
Claims (1)
回路と、このクロックパルス発生回路から出力されるク
ロック信号を分周して予め定められた周波数の互いに異
なる複数種の出力信号を発生する分周回路と、ビデオヘ
ッドの選択に同期して予め定められた順に前記分周回路
の出力を選択して出力するスイッチ回路と、このスイッ
チ回路の出力信号を２重積分することにより方形波を正
弦波に変換してパイロット信号を出力する２重積分回路
と、前記分周回路と２重積分回路との間に設けられ、分
周回路の各出力に対応する２重積分回路の出力が振幅一
定となるようにウェイトを付ける回路とを備えたトラッ
キング用パイロット信号発生回路。A clock pulse generation circuit that generates a clock signal with a constant period, and a frequency division circuit that divides the frequency of the clock signal output from the clock pulse generation circuit and generates multiple types of output signals having different predetermined frequencies. , a switch circuit that selects and outputs the output of the frequency dividing circuit in a predetermined order in synchronization with the selection of the video head, and converts a square wave into a sine wave by double integrating the output signal of this switch circuit. A double integrator circuit is provided between the frequency divider circuit and the double integrator circuit to output a pilot signal, and the output of the double integrator circuit corresponding to each output of the frequency divider circuit has a constant amplitude. A tracking pilot signal generation circuit that includes a circuit that adds weight to the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1238383U JPS59121731U (en) | 1983-01-31 | 1983-01-31 | Pilot signal generation circuit for tracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1238383U JPS59121731U (en) | 1983-01-31 | 1983-01-31 | Pilot signal generation circuit for tracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59121731U true JPS59121731U (en) | 1984-08-16 |
Family
ID=30143785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1238383U Pending JPS59121731U (en) | 1983-01-31 | 1983-01-31 | Pilot signal generation circuit for tracking |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59121731U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932622A (en) * | 1972-07-20 | 1974-03-25 | ||
| JPS5760707A (en) * | 1980-09-29 | 1982-04-12 | Nec Corp | Oscillating circuit |
| JPS5743612B2 (en) * | 1976-10-22 | 1982-09-16 |
-
1983
- 1983-01-31 JP JP1238383U patent/JPS59121731U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932622A (en) * | 1972-07-20 | 1974-03-25 | ||
| JPS5743612B2 (en) * | 1976-10-22 | 1982-09-16 | ||
| JPS5760707A (en) * | 1980-09-29 | 1982-04-12 | Nec Corp | Oscillating circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59121731U (en) | Pilot signal generation circuit for tracking | |
| JPH03120127U (en) | ||
| JPS59180531U (en) | pulse generator | |
| JPS6067556U (en) | clock regeneration circuit | |
| JPS60142859U (en) | Time base correction circuit | |
| JPH0268583U (en) | ||
| JPS5816932U (en) | pulse delay circuit | |
| JPS59121732U (en) | Pilot signal generation circuit for tracking | |
| JPS59129249U (en) | Phase continuous FS modulation circuit | |
| JPS61104644U (en) | ||
| JPS6123785U (en) | Time axis correction device | |
| JPH02108488U (en) | ||
| JPS6093967U (en) | display circuit | |
| JPS6126324U (en) | Pulse width modulation control signal generator | |
| JPS6082816U (en) | Sine wave generation circuit | |
| JPS611926U (en) | Pulse duty shaping circuit | |
| JPS5849285U (en) | timer clock circuit | |
| JPS58172881U (en) | frequency detection circuit | |
| JPH0298527U (en) | ||
| JPS5885831U (en) | Test input pulse generator for pulse pickup circuit | |
| JPS59111360U (en) | Sawtooth wave AFC signal generation circuit | |
| JPS58127737U (en) | Frequency tracking device | |
| JPS6431588U (en) | ||
| JPS58538U (en) | Data speed conversion circuit | |
| JPS6051604U (en) | Automatic frequency characteristic adjustment device for magnetic recording and playback equipment |