JPS5521690A - Timing pick up unit - Google Patents

Timing pick up unit

Info

Publication number
JPS5521690A
JPS5521690A JP9566478A JP9566478A JPS5521690A JP S5521690 A JPS5521690 A JP S5521690A JP 9566478 A JP9566478 A JP 9566478A JP 9566478 A JP9566478 A JP 9566478A JP S5521690 A JPS5521690 A JP S5521690A
Authority
JP
Japan
Prior art keywords
circuit
sampler
signal
timing
output
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.)
Pending
Application number
JP9566478A
Other languages
Japanese (ja)
Inventor
Shigeyuki Kawarabayashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9566478A priority Critical patent/JPS5521690A/en
Publication of JPS5521690A publication Critical patent/JPS5521690A/en
Pending 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
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop

Landscapes

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

Abstract

PURPOSE:To make unnecessary the high speed clock for operation, by controlling the next sampling point in the specific timing for the signal represented in complex number. CONSTITUTION:The signal modulated in the two dimension modulation system is fed to the input terminals 1 and 2 by demodulating it into the signal of form represented in a complex number with the demoluation circuit. This is sampled at the sampler 3 and fed to the discriminator 4 with Viteribi algorithm VA, and the estimation value of the transmission data symbol of the input signal is outputted at the output terminals 13 and 14 by using VA from the discriminator 4. The operation circuit 17 inputs this output to perform convolution operation between the estimation value of symbol and the impulse response of the transmission line. The timing pick up circuit 16 inputs the output of the sampler 3 and that of the circuit 17 and controls the next sampling point of the sampler 3 in the timing of equation 1. As a result, the clocks for operation can be all symbol distance and no high speed clock is required.
JP9566478A 1978-08-04 1978-08-04 Timing pick up unit Pending JPS5521690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9566478A JPS5521690A (en) 1978-08-04 1978-08-04 Timing pick up unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9566478A JPS5521690A (en) 1978-08-04 1978-08-04 Timing pick up unit

Publications (1)

Publication Number Publication Date
JPS5521690A true JPS5521690A (en) 1980-02-15

Family

ID=14143753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9566478A Pending JPS5521690A (en) 1978-08-04 1978-08-04 Timing pick up unit

Country Status (1)

Country Link
JP (1) JPS5521690A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931212A (en) * 1982-08-11 1984-02-20 Sanko Kuki Sochi Kk Pneumatic transport apparatus in high density and at low speed which can be oscillated
JPS63106230A (en) * 1986-10-21 1988-05-11 Kyowa Hakko Kogyo Co Ltd Transport of powdered granule by high concentration gas and apparatus thereof
US4775267A (en) * 1987-02-12 1988-10-04 Nisso Engineering Co., Ltd. Pneumatic conveyor for powder
JPH01164229U (en) * 1988-05-06 1989-11-16

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931212A (en) * 1982-08-11 1984-02-20 Sanko Kuki Sochi Kk Pneumatic transport apparatus in high density and at low speed which can be oscillated
JPS63106230A (en) * 1986-10-21 1988-05-11 Kyowa Hakko Kogyo Co Ltd Transport of powdered granule by high concentration gas and apparatus thereof
US4775267A (en) * 1987-02-12 1988-10-04 Nisso Engineering Co., Ltd. Pneumatic conveyor for powder
JPH01164229U (en) * 1988-05-06 1989-11-16

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