JPS5525282A - Picture signal addition circuit for facsimile modulation signal - Google Patents

Picture signal addition circuit for facsimile modulation signal

Info

Publication number
JPS5525282A
JPS5525282A JP9881478A JP9881478A JPS5525282A JP S5525282 A JPS5525282 A JP S5525282A JP 9881478 A JP9881478 A JP 9881478A JP 9881478 A JP9881478 A JP 9881478A JP S5525282 A JPS5525282 A JP S5525282A
Authority
JP
Japan
Prior art keywords
signal
facsimile
picture
addition
phase
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
JP9881478A
Other languages
Japanese (ja)
Other versions
JPS6053500B2 (en
Inventor
Hideo Matsuda
Kanko Yuki
Takashi Kawade
Kenichi Hanabe
Naoaki Adachi
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 JP9881478A priority Critical patent/JPS6053500B2/en
Priority to GB7921592A priority patent/GB2026282B/en
Priority to CA000330357A priority patent/CA1117645A/en
Priority to FR7917781A priority patent/FR2433867A1/en
Priority to US06/056,287 priority patent/US4255766A/en
Publication of JPS5525282A publication Critical patent/JPS5525282A/en
Publication of JPS6053500B2 publication Critical patent/JPS6053500B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To secure the addition of the facsimile picture signal with no deterioration of the picture signal by switching the phase of the carrier signal within the signal addition device at the repeating installation and via the control signal sent from the facsimile picture signal addition control device and then transmitting the signal to the receiving device.
CONSTITUTION: The transmission original picture set to transmitting device 1 receives the photoelectric conversion after scanning with addition of the synchronous signal showing the start of each scan and then undergoes the double-phase amplitude/phase modulation after conversion into the base band signal to be transmitted to repeating installation 2 in the form of the facsimile modulation signal. At installation 2 the synchronous and phase signals are extracted 3, and the phase of the carrier signal within signal addition device 6 is switching by the control signal sent from facsimile picture signal addition control unit 4 to sent to receiving device 7. The facsimile modulation signal received at device 7 is demodulated and decoded to the base band signal to be regenerated. In such way, the facsimile picture signal can be added in a simple constitution with no deterioration of the picture quality.
COPYRIGHT: (C)1980,JPO&Japio
JP9881478A 1978-07-10 1978-08-14 Image signal addition circuit for facsimile modulation signal Expired JPS6053500B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9881478A JPS6053500B2 (en) 1978-08-14 1978-08-14 Image signal addition circuit for facsimile modulation signal
GB7921592A GB2026282B (en) 1978-07-10 1979-06-21 Signal superimposing apparatus
CA000330357A CA1117645A (en) 1978-07-10 1979-06-22 Facsimile signal superposing system
FR7917781A FR2433867A1 (en) 1978-07-10 1979-07-09 OVERLAY SYSTEM FOR FAC-SIMILE
US06/056,287 US4255766A (en) 1978-07-10 1979-07-10 Facsimile signal superposing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9881478A JPS6053500B2 (en) 1978-08-14 1978-08-14 Image signal addition circuit for facsimile modulation signal

Publications (2)

Publication Number Publication Date
JPS5525282A true JPS5525282A (en) 1980-02-22
JPS6053500B2 JPS6053500B2 (en) 1985-11-26

Family

ID=14229784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9881478A Expired JPS6053500B2 (en) 1978-07-10 1978-08-14 Image signal addition circuit for facsimile modulation signal

Country Status (1)

Country Link
JP (1) JPS6053500B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113766U (en) * 1980-12-29 1982-07-14
JPH0561354U (en) * 1992-01-27 1993-08-13 油谷重工株式会社 Hydraulic switching device for dismantling machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0631999U (en) * 1992-09-22 1994-04-26 近畿配管株式会社 Cutting machine for synthetic resin waste materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113766U (en) * 1980-12-29 1982-07-14
JPH0561354U (en) * 1992-01-27 1993-08-13 油谷重工株式会社 Hydraulic switching device for dismantling machine

Also Published As

Publication number Publication date
JPS6053500B2 (en) 1985-11-26

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