JPS55107366A - Waveform reproduction system - Google Patents
Waveform reproduction systemInfo
- Publication number
- JPS55107366A JPS55107366A JP1387179A JP1387179A JPS55107366A JP S55107366 A JPS55107366 A JP S55107366A JP 1387179 A JP1387179 A JP 1387179A JP 1387179 A JP1387179 A JP 1387179A JP S55107366 A JPS55107366 A JP S55107366A
- Authority
- JP
- Japan
- Prior art keywords
- output
- latch circuit
- latched
- read out
- threshold value
- 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
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
PURPOSE: To obtain the reproducing data having longer effective processing time and sufficient pulse width accuracy, by suitably interleaving for input and output sampling value and identifying this interval with interpolation through approximate data.
CONSTITUTION: The output pulse of long period interleaved from the digital filter 11 is compared with the threshold value, and the difference is obtained from the subtractor 12 and latched with the clock CLK1 at the latch circuit 13 succeeding. The fixed memory ROM14 is read out by taking the output of the difference of the latch circuit 13 and the output pattern of the discrimination area is picked up. Only when the exclusive logical sum EX-OR detects that the threshold value is exceeded, the latch circuit 15 is latched. The output of the latch circuit 15 is inputted to the parallel serial conversion circuit P/S 16 and the reproduced data is serially read out.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1387179A JPS55107366A (en) | 1979-02-09 | 1979-02-09 | Waveform reproduction system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1387179A JPS55107366A (en) | 1979-02-09 | 1979-02-09 | Waveform reproduction system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107366A true JPS55107366A (en) | 1980-08-18 |
Family
ID=11845290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1387179A Pending JPS55107366A (en) | 1979-02-09 | 1979-02-09 | Waveform reproduction system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107366A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57184356A (en) * | 1981-05-08 | 1982-11-13 | Seiko Epson Corp | Fsk demodulating circuit |
JPS57210750A (en) * | 1981-06-19 | 1982-12-24 | Fujitsu Ltd | Fsk signal demodulating system |
-
1979
- 1979-02-09 JP JP1387179A patent/JPS55107366A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57184356A (en) * | 1981-05-08 | 1982-11-13 | Seiko Epson Corp | Fsk demodulating circuit |
JPH0127618B2 (en) * | 1981-05-08 | 1989-05-30 | Seiko Epson Corp | |
JPS57210750A (en) * | 1981-06-19 | 1982-12-24 | Fujitsu Ltd | Fsk signal demodulating system |
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