JPS5570905A - Data selection system - Google Patents

Data selection system

Info

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
Application number
JP14515878A
Other languages
Japanese (ja)
Other versions
JPS6215940B2 (en
Inventor
Tomohiro Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP14515878A priority Critical patent/JPS5570905A/en
Publication of JPS5570905A publication Critical patent/JPS5570905A/en
Publication of JPS6215940B2 publication Critical patent/JPS6215940B2/ja
Granted legal-status Critical Current

Links

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  • 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
JP14515878A 1978-11-24 1978-11-24 Data selection system Granted JPS5570905A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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