JPS5456318A - Phase matching detection method of facsimile - Google Patents

Phase matching detection method of facsimile

Info

Publication number
JPS5456318A
JPS5456318A JP12385277A JP12385277A JPS5456318A JP S5456318 A JPS5456318 A JP S5456318A JP 12385277 A JP12385277 A JP 12385277A JP 12385277 A JP12385277 A JP 12385277A JP S5456318 A JPS5456318 A JP S5456318A
Authority
JP
Japan
Prior art keywords
pulse
phase matching
counter
phase
signal
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
JP12385277A
Other languages
Japanese (ja)
Inventor
Hideji Yanase
Hiroyuki Hayazaki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP12385277A priority Critical patent/JPS5456318A/en
Publication of JPS5456318A publication Critical patent/JPS5456318A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To avoid the malfunction for the phase matching by leading out the phase matching output when the wave number of the carrier of the modulated receiving phase signal becomes more than the prescribed value n.
CONSTITUTION: In the phase matching detection circuit, modulated receiving phase signal (b) detected at the receiver side undergoes waveform shaping 1 to be turned to signal (c) which is applied to the clock terminal of counter 2. On the other hand, self-phase signal pulse (a) generated at the receiver side is supplied to the reset terminal of counter 2 to be reset except for the period of pulse (a). And in case n- units of pulses come to the clock terminal, output signal pulse (d) of counter 2 is transmitted. Thus, the end of the phase matching between singal (a) and (b) is known when pulse (d) is delivered. Pulse (a') is shown by compressing the time axis of pulse (a)
COPYRIGHT: (C)1979,JPO&Japio
JP12385277A 1977-10-13 1977-10-13 Phase matching detection method of facsimile Pending JPS5456318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12385277A JPS5456318A (en) 1977-10-13 1977-10-13 Phase matching detection method of facsimile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12385277A JPS5456318A (en) 1977-10-13 1977-10-13 Phase matching detection method of facsimile

Publications (1)

Publication Number Publication Date
JPS5456318A true JPS5456318A (en) 1979-05-07

Family

ID=14870983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12385277A Pending JPS5456318A (en) 1977-10-13 1977-10-13 Phase matching detection method of facsimile

Country Status (1)

Country Link
JP (1) JPS5456318A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729355A (en) * 1994-01-28 1998-03-17 Matsushita Electric Industrial Co. Ltd. Facsimile machine having a phase/amplitude fluctuation detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729355A (en) * 1994-01-28 1998-03-17 Matsushita Electric Industrial Co. Ltd. Facsimile machine having a phase/amplitude fluctuation detector

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