JPS5651012A - Synchronizing system for reproduction signal - Google Patents
Synchronizing system for reproduction signalInfo
- Publication number
- JPS5651012A JPS5651012A JP12751579A JP12751579A JPS5651012A JP S5651012 A JPS5651012 A JP S5651012A JP 12751579 A JP12751579 A JP 12751579A JP 12751579 A JP12751579 A JP 12751579A JP S5651012 A JPS5651012 A JP S5651012A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- data
- oscillator
- timer
- zero
- 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
- Synchronisation In Digital Transmission Systems (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To enable the giving and reception of stable data bit independently of the variance of mechanical systems, by controlling the frequency of an oscillator which generates the signal having a time width from the end of data window signal to the leading of the next reproducing data, and changing the time width of the data window signal.
CONSTITUTION: When the reproduction data RD from a floppy disc is input to a counter 10, it counts up in synchronizing with the clock input from a voltage controlled oscillator 50, and outputs a data window signal DW for a prescribed period and makes a zero signal to a high level. This zero signal is fed to a phase detector 30 and a timer 20. The phase detector 30 receives a reference pulse from the timer 20 and supplies the differential output of the pulse width and that of the zero signal to the oscillator 50 through a LPF40. The oscillator 50 feeds a signal in frequency corresponding to the input signal, and the zero signal is made in coincidence with the reference signal of the timer 20. Accordingly, since the variance of mechanical systems can be absorbed to the DW, the stable giving and reception of data beat can be made.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12751579A JPS5651012A (en) | 1979-10-03 | 1979-10-03 | Synchronizing system for reproduction signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12751579A JPS5651012A (en) | 1979-10-03 | 1979-10-03 | Synchronizing system for reproduction signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5651012A true JPS5651012A (en) | 1981-05-08 |
Family
ID=14961910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12751579A Pending JPS5651012A (en) | 1979-10-03 | 1979-10-03 | Synchronizing system for reproduction signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5651012A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58133611A (en) * | 1982-02-01 | 1983-08-09 | Sony Corp | Recorder and reproducer |
| JPH0268129A (en) * | 1988-09-02 | 1990-03-07 | Sintokogio Ltd | Production of consolidated spherical fine particle |
| US5102586A (en) * | 1988-10-27 | 1992-04-07 | Kawasaki Steel Corporation | Agglomerating process of sinter mix and apparatus therefor |
-
1979
- 1979-10-03 JP JP12751579A patent/JPS5651012A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58133611A (en) * | 1982-02-01 | 1983-08-09 | Sony Corp | Recorder and reproducer |
| JPH0268129A (en) * | 1988-09-02 | 1990-03-07 | Sintokogio Ltd | Production of consolidated spherical fine particle |
| US5102586A (en) * | 1988-10-27 | 1992-04-07 | Kawasaki Steel Corporation | Agglomerating process of sinter mix and apparatus therefor |
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