[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS6424535A - Parallel processing type synchronizing word detector - Google Patents

Parallel processing type synchronizing word detector

Info

Publication number
JPS6424535A
JPS6424535A JP62181842A JP18184287A JPS6424535A JP S6424535 A JPS6424535 A JP S6424535A JP 62181842 A JP62181842 A JP 62181842A JP 18184287 A JP18184287 A JP 18184287A JP S6424535 A JPS6424535 A JP S6424535A
Authority
JP
Japan
Prior art keywords
synchronizing word
fast
digital
synchronizing
circuit
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
JP62181842A
Other languages
Japanese (ja)
Other versions
JPH088560B2 (en
Inventor
Masahiro Morikura
Seiji Enomoto
Shuzo Kato
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62181842A priority Critical patent/JPH088560B2/en
Publication of JPS6424535A publication Critical patent/JPS6424535A/en
Publication of JPH088560B2 publication Critical patent/JPH088560B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To detect the synchronizing word of a fast signal without depending upon the operation frequency of a slow processing circuit by constituting a synchronizing word detecting circuit so that the fast processing circuit, digital correlator, and slow processing circuit of a series-parallel converting circuit are separated completely. CONSTITUTION:An input digital signal sequence is converted by the series- parallel converting circuit into M sequences of digital signals P'1... P'M, which are converted in arrangement by M kinds shown in expressions I through M rearranging circuits. The output signals P1... PM of those rearranging circuits are processed by M digital correlators 21 and 22 to detect M kinds of synchronizing words, and a synchronizing word detection pulse selecting circuit generates a fast synchronizing word detection pulse in correct clock phase according to M kinds of slow synchronizing word detection pulses outputted by those digital correlators 21 and 22. Consequently, the operation frequency can be increased in proportion to the number of parallel processes and the fast synchronizing word detection pulse from which the uncertainty of the clock phase is removed is obtained.
JP62181842A 1987-07-20 1987-07-20 Parallel processing type synchronous word detector Expired - Fee Related JPH088560B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181842A JPH088560B2 (en) 1987-07-20 1987-07-20 Parallel processing type synchronous word detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181842A JPH088560B2 (en) 1987-07-20 1987-07-20 Parallel processing type synchronous word detector

Publications (2)

Publication Number Publication Date
JPS6424535A true JPS6424535A (en) 1989-01-26
JPH088560B2 JPH088560B2 (en) 1996-01-29

Family

ID=16107767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181842A Expired - Fee Related JPH088560B2 (en) 1987-07-20 1987-07-20 Parallel processing type synchronous word detector

Country Status (1)

Country Link
JP (1) JPH088560B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210068A (en) * 1988-06-28 1990-01-12 Osaka Gas Co Ltd Absorbing agent for absorption type heat pump
JPH0316337A (en) * 1989-03-13 1991-01-24 Hitachi Ltd Timing extraction system and communication system utilizing same
WO1993026106A1 (en) * 1992-06-18 1993-12-23 Oki Electric Industry Co., Ltd. Maximum likelihood sequence estimating device and method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210068A (en) * 1988-06-28 1990-01-12 Osaka Gas Co Ltd Absorbing agent for absorption type heat pump
JPH0316337A (en) * 1989-03-13 1991-01-24 Hitachi Ltd Timing extraction system and communication system utilizing same
WO1993026106A1 (en) * 1992-06-18 1993-12-23 Oki Electric Industry Co., Ltd. Maximum likelihood sequence estimating device and method therefor

Also Published As

Publication number Publication date
JPH088560B2 (en) 1996-01-29

Similar Documents

Publication Publication Date Title
JPS5631231A (en) Phase locked loop circuit
JPS53149076A (en) Digital frequency detecting circuit
JPS56106457A (en) Extracting system of clock signal
JPS525581A (en) Voltage detector circuit
JPS6424535A (en) Parallel processing type synchronizing word detector
JPS56106421A (en) Constant ratio delay circuit
JPS57111196A (en) Signal error detector
US2862185A (en) Electronic fm/fm to analog or digital converter
JPS5680944A (en) Synchronism detecting circuit of digital receiver
JPS5231630A (en) Test ethod of digital equipment
JPS5798040A (en) Comparator for serial magnitude
JPS55114031A (en) Detector for pulse absence
JPS5521668A (en) Tone detection system
JPS5451710A (en) Bit phase synchronizing circuit
JPS5523677A (en) Selection circuit for delay time
JPS642450A (en) Toner signal reception system
SU1644093A1 (en) Device for centralized control of parameters
JPS5624630A (en) Plural input and output device control system
JPS6432300A (en) Pitch cycle extraction system and apparatus
JPS5717236A (en) Detector for synchronism
RU2017340C1 (en) Digital fm detector
JPS5552633A (en) Pulse multiplication unit
JPS56122521A (en) Phase difference detecting circuit
JPS567002A (en) Distance detecting system
JPS5452436A (en) Bit-phase synchronization system

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees