JPS5744352A - Data synchronizing signal generator - Google Patents

Data synchronizing signal generator

Info

Publication number
JPS5744352A
JPS5744352A JP55120313A JP12031380A JPS5744352A JP S5744352 A JPS5744352 A JP S5744352A JP 55120313 A JP55120313 A JP 55120313A JP 12031380 A JP12031380 A JP 12031380A JP S5744352 A JPS5744352 A JP S5744352A
Authority
JP
Japan
Prior art keywords
pattern
synchronizing signal
inversion
center
synchronizing
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
JP55120313A
Other languages
Japanese (ja)
Other versions
JPS6361812B2 (en
Inventor
Takahiko Watanabe
Takenori Sonoda
Masato Tanaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP55120313A priority Critical patent/JPS5744352A/en
Publication of JPS5744352A publication Critical patent/JPS5744352A/en
Publication of JPS6361812B2 publication Critical patent/JPS6361812B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To generate a synchronizing signal having a pattern which never appears in normal modulation, by inhibiting prescribed timing inversion in a synchronizing signal period simultaneously with the alternate supply of data synchronizing-pattern generating data to a modulator. CONSTITUTION:When a pattern having two successive maximum inversion intervals Tmax of 4.5T does not appear in normal modulation, inversion occurs in the center of an a1, at the leading edge of an a5 and in the center of an a10, providing that a0a1=01, a4a5=11 and a9a10=01 with regard to data DT2 (a0-a10 shown in A) for synchronizing pattern generation, so the pattern having two successive Tmaxs is generated. A modulator 1 supplied with the DT2 outputs a B, which is changed into a pulse PI' (shown by C) by a differentiating circuit 5. An inversion inhibition pulse INH(shown by D) is supplied from an ROM9 to an AND gate 6 to eliminate an inverted pulse generated in the center of an a4 in the PI, and an FF7 generates a synchronizing signal PSY (shown by E).
JP55120313A 1980-08-29 1980-08-29 Data synchronizing signal generator Granted JPS5744352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120313A JPS5744352A (en) 1980-08-29 1980-08-29 Data synchronizing signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120313A JPS5744352A (en) 1980-08-29 1980-08-29 Data synchronizing signal generator

Publications (2)

Publication Number Publication Date
JPS5744352A true JPS5744352A (en) 1982-03-12
JPS6361812B2 JPS6361812B2 (en) 1988-11-30

Family

ID=14783142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120313A Granted JPS5744352A (en) 1980-08-29 1980-08-29 Data synchronizing signal generator

Country Status (1)

Country Link
JP (1) JPS5744352A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130244A (en) * 1983-12-19 1985-07-11 Nec Corp Accompanying signal transmitting system
JPS6123436A (en) * 1984-07-11 1986-01-31 Nippon Telegr & Teleph Corp <Ntt> Data transmitter and receiver
JPS6184934A (en) * 1984-10-03 1986-04-30 Nippon Telegr & Teleph Corp <Ntt> Audio signal digital transmission system
JPS61192074A (en) * 1985-02-20 1986-08-26 Canon Inc Information record carrier
JPS6297442A (en) * 1985-10-23 1987-05-06 Pioneer Electronic Corp Synchronizing system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412207A (en) * 1977-06-17 1979-01-29 Nec Corp Signal transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412207A (en) * 1977-06-17 1979-01-29 Nec Corp Signal transmission system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130244A (en) * 1983-12-19 1985-07-11 Nec Corp Accompanying signal transmitting system
JPH0340986B2 (en) * 1983-12-19 1991-06-20
JPS6123436A (en) * 1984-07-11 1986-01-31 Nippon Telegr & Teleph Corp <Ntt> Data transmitter and receiver
JPS6184934A (en) * 1984-10-03 1986-04-30 Nippon Telegr & Teleph Corp <Ntt> Audio signal digital transmission system
JPS61192074A (en) * 1985-02-20 1986-08-26 Canon Inc Information record carrier
JPS6297442A (en) * 1985-10-23 1987-05-06 Pioneer Electronic Corp Synchronizing system

Also Published As

Publication number Publication date
JPS6361812B2 (en) 1988-11-30

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