JPS5570905A - Data selection system - Google Patents
Data selection systemInfo
- Publication number
- JPS5570905A JPS5570905A JP14515878A JP14515878A JPS5570905A JP S5570905 A JPS5570905 A JP S5570905A JP 14515878 A JP14515878 A JP 14515878A JP 14515878 A JP14515878 A JP 14515878A JP S5570905 A JPS5570905 A JP S5570905A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- circuit
- output
- signal
- digital data
- 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.)
- Granted
Links
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To select digital data with a simple circuit, by using the frequency band of digital data and its regularity through the provision of a wave shape circuit etc.
CONSTITUTION: The reproduced information is shaped ito rectangular wave signal at the wave shape circuit 10 and inputted to the one shot circuit 11 to output one shot pulse. This pulse clears the counter 15. When a digital signal having the frequency of 1.2 or 2.4kHz, the content of the counter 15 is "13±2" or "27±3" to set the flip flop 13. This output signal is read in the shift register 14, and when "1" signal is written in all the bits, the output of the gate circuit 21 is inputted to the counter 24. When the content of the counter 24 reaches "8", the flip flop 27 is set. The output of the said set indicates the reproduced information is digital date. Thus, the digital data can be selected wiht the simple circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14515878A JPS5570905A (en) | 1978-11-24 | 1978-11-24 | Data selection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14515878A JPS5570905A (en) | 1978-11-24 | 1978-11-24 | Data selection system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5570905A true JPS5570905A (en) | 1980-05-28 |
JPS6215940B2 JPS6215940B2 (en) | 1987-04-09 |
Family
ID=15378758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14515878A Granted JPS5570905A (en) | 1978-11-24 | 1978-11-24 | Data selection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570905A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59210502A (en) * | 1983-05-13 | 1984-11-29 | Matsushita Electric Ind Co Ltd | Recording and reproducing device |
US7348482B2 (en) | 2001-01-23 | 2008-03-25 | Yamaha Corporation | Discriminator for differently modulated signals, method used therein, demodulator equipped therewith, method used therein, sound reproducing apparatus and method for reproducing original music data code |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53116129A (en) * | 1977-03-18 | 1978-10-11 | Sharp Corp | Recording-reproducing system of voice, characters, or the like |
-
1978
- 1978-11-24 JP JP14515878A patent/JPS5570905A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53116129A (en) * | 1977-03-18 | 1978-10-11 | Sharp Corp | Recording-reproducing system of voice, characters, or the like |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59210502A (en) * | 1983-05-13 | 1984-11-29 | Matsushita Electric Ind Co Ltd | Recording and reproducing device |
JPH053674B2 (en) * | 1983-05-13 | 1993-01-18 | Matsushita Electric Ind Co Ltd | |
US7348482B2 (en) | 2001-01-23 | 2008-03-25 | Yamaha Corporation | Discriminator for differently modulated signals, method used therein, demodulator equipped therewith, method used therein, sound reproducing apparatus and method for reproducing original music data code |
Also Published As
Publication number | Publication date |
---|---|
JPS6215940B2 (en) | 1987-04-09 |
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