JPS54122113A - Code signal converter - Google Patents

Code signal converter

Info

Publication number
JPS54122113A
JPS54122113A JP2922178A JP2922178A JPS54122113A JP S54122113 A JPS54122113 A JP S54122113A JP 2922178 A JP2922178 A JP 2922178A JP 2922178 A JP2922178 A JP 2922178A JP S54122113 A JPS54122113 A JP S54122113A
Authority
JP
Japan
Prior art keywords
pulse train
circuit
led
exclusive
generator
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
JP2922178A
Other languages
Japanese (ja)
Other versions
JPS6243271B2 (en
Inventor
Shozo Nakagawa
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP2922178A priority Critical patent/JPS54122113A/en
Priority to US06/019,592 priority patent/US4234898A/en
Priority to GB7908785A priority patent/GB2017365B/en
Priority to DE2954630A priority patent/DE2954630C2/en
Priority to DE19792910033 priority patent/DE2910033A1/en
Priority to FR7906630A priority patent/FR2420181B1/en
Publication of JPS54122113A publication Critical patent/JPS54122113A/en
Publication of JPS6243271B2 publication Critical patent/JPS6243271B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To reduce code errors owing to the effect of low frequency range cutoff in the recording-reproducing system by providing a pulse train generator which generates pseudo-random pattern pulses having known pulse patterns.
CONSTITUTION: The pseudo-random pattern pulse train signal from an M system generator 3 is directly led to an exclusive-OR circuit 8 via switch SW1. This pulse train signal which has been inverted by being applied to an inverter, i.e., inversion gate 6, is led to an exclusive-OR circuit 9 via switch SW2. Further the pulse train signal from the generator 3 having been delayed by n-bits, e.g., 10 bits, by being applied to an n-bit shift register 4 is led to an exclusive-OR circuit 10 via switch SW3. Since in this way the pseudo-random pattern pulse train signals having no correlations at all may be obtained, such signals are deformed by Modulo 2 addition and are led together to a continuous number judgement circuit 5.
COPYRIGHT: (C)1979,JPO&Japio
JP2922178A 1978-03-15 1978-03-16 Code signal converter Granted JPS54122113A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2922178A JPS54122113A (en) 1978-03-16 1978-03-16 Code signal converter
US06/019,592 US4234898A (en) 1978-03-15 1979-03-12 Digital magnetic recording and reproducing apparatus
GB7908785A GB2017365B (en) 1978-03-15 1979-03-13 Digital magnetic recording and reproducing apparatus
DE2954630A DE2954630C2 (en) 1978-03-15 1979-03-14 Digital magnetic recording and reproduction
DE19792910033 DE2910033A1 (en) 1978-03-15 1979-03-14 DIGITAL MAGNETIC RECORDING AND PLAYBACK DEVICE
FR7906630A FR2420181B1 (en) 1978-03-15 1979-03-15 DIGITAL MAGNETIC RECORDING AND REPRODUCING APPARATUS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2922178A JPS54122113A (en) 1978-03-16 1978-03-16 Code signal converter

Publications (2)

Publication Number Publication Date
JPS54122113A true JPS54122113A (en) 1979-09-21
JPS6243271B2 JPS6243271B2 (en) 1987-09-12

Family

ID=12270142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2922178A Granted JPS54122113A (en) 1978-03-15 1978-03-16 Code signal converter

Country Status (1)

Country Link
JP (1) JPS54122113A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823310A (en) * 1981-07-31 1983-02-12 Victor Co Of Japan Ltd Recording system for digital information signal
JPS5837826A (en) * 1982-07-01 1983-03-05 Victor Co Of Japan Ltd Reproducer of digital information signal
JPS59201561A (en) * 1983-04-29 1984-11-15 Sony Corp Transmission system of digital signal
JPS6076061A (en) * 1983-09-30 1985-04-30 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device
JPS60142644A (en) * 1983-12-28 1985-07-27 Mitsubishi Electric Corp Transmission line encoding circuit
JPS60142645A (en) * 1983-12-28 1985-07-27 Mitsubishi Electric Corp Transmission line encoding circuit
JPS60256984A (en) * 1984-05-31 1985-12-18 Nec Corp Magnetic recording and reproducing device
JPS61208382A (en) * 1985-03-12 1986-09-16 Nec Corp Magnetic recording and reproducing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823310A (en) * 1981-07-31 1983-02-12 Victor Co Of Japan Ltd Recording system for digital information signal
JPS5837826A (en) * 1982-07-01 1983-03-05 Victor Co Of Japan Ltd Reproducer of digital information signal
JPS59201561A (en) * 1983-04-29 1984-11-15 Sony Corp Transmission system of digital signal
JPS6076061A (en) * 1983-09-30 1985-04-30 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device
JPS60142644A (en) * 1983-12-28 1985-07-27 Mitsubishi Electric Corp Transmission line encoding circuit
JPS60142645A (en) * 1983-12-28 1985-07-27 Mitsubishi Electric Corp Transmission line encoding circuit
JPS60256984A (en) * 1984-05-31 1985-12-18 Nec Corp Magnetic recording and reproducing device
JPH0574146B2 (en) * 1984-05-31 1993-10-15 Nippon Electric Co
JPS61208382A (en) * 1985-03-12 1986-09-16 Nec Corp Magnetic recording and reproducing device

Also Published As

Publication number Publication date
JPS6243271B2 (en) 1987-09-12

Similar Documents

Publication Publication Date Title
JPS54122113A (en) Code signal converter
JPS5229209A (en) Electronic musical instrument
JPS542713A (en) Electronic musical instrument
JPS5431212A (en) Monitor circuit for digital signal transmission line
JPS5495224A (en) Electronic musical instrument
JPS5299807A (en) Automatic rhythm player
JPS53139519A (en) Electronic musical instrument
JPS5326114A (en) Electronic musical instrument
JPS547114A (en) Speed signal generator
JPS52147923A (en) Special-effect signal generator
SU902249A1 (en) Time interval-to-digital code converter
SU1210209A2 (en) Pseudorandom pulse sequence generator
JPS5373047A (en) Generation circuit for timing signal
JPS53107353A (en) Interpolation circuit of digital scale
JPS53147454A (en) Code conversion system
SU634478A1 (en) Frequency-manipulated signal detector
JPS5399860A (en) Phase shifter
SU957424A1 (en) Pulse generator
JPS52113254A (en) Digital clock for time signal
JPS53133327A (en) Auto-clear signal generator circuit
JPS5448222A (en) Automatic accompaniment apparatus
JPS5636740A (en) Signal selecting circuit
SU674204A2 (en) Binary signal pseudorandom train generator
JPS5374856A (en) Data process system
JPS549526A (en) Plural signal difference encoding system