JPS5453914A - Detection circuit for facsimile - Google Patents

Detection circuit for facsimile

Info

Publication number
JPS5453914A
JPS5453914A JP12002077A JP12002077A JPS5453914A JP S5453914 A JPS5453914 A JP S5453914A JP 12002077 A JP12002077 A JP 12002077A JP 12002077 A JP12002077 A JP 12002077A JP S5453914 A JPS5453914 A JP S5453914A
Authority
JP
Japan
Prior art keywords
control signal
terminal
filters
itself
detection 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
JP12002077A
Other languages
Japanese (ja)
Other versions
JPS5829906B2 (en
Inventor
Mitsushi Matsumoto
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 JP52120020A priority Critical patent/JPS5829906B2/en
Publication of JPS5453914A publication Critical patent/JPS5453914A/en
Publication of JPS5829906B2 publication Critical patent/JPS5829906B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Facsimile Transmission Control (AREA)

Abstract

PURPOSE: To detect the control signal from the opposing terminal, even during the delivery of control signal for itself, by providing filters suppressing the control signal from the terminal of itself via the control signal from the opposing terminal with the prestage of the control signal detection circuit of facsimile using communication line.
CONSTITUTION: In the control signal detection circuit of facsimile using communication line, the filters 14 and 15 passing through the control signal C from the opposing terminal and suppressing the control signal a passed through the signal delivery section 12 from the terminal itself and the hybrid circuit 9 are provided with the prestage of the control signal detection circuit 13. Further, the selection circuits 16, 17 selecting the filters 14, 15 according to the frequency of the control signal a delivered from the terminal of itself are provided with the filters 14 and 15, so that selection can be made with the control circuit 20, and the control signal c from the opposing terminal is inputted to the detection section 19 via the filters 14 and 15, and the detection of the control signal from the opposing terminal is enabled during the delivery of the signal from the terminal of itself
COPYRIGHT: (C)1979,JPO&Japio
JP52120020A 1977-10-07 1977-10-07 Detection circuit for facsimile Expired JPS5829906B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52120020A JPS5829906B2 (en) 1977-10-07 1977-10-07 Detection circuit for facsimile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52120020A JPS5829906B2 (en) 1977-10-07 1977-10-07 Detection circuit for facsimile

Publications (2)

Publication Number Publication Date
JPS5453914A true JPS5453914A (en) 1979-04-27
JPS5829906B2 JPS5829906B2 (en) 1983-06-25

Family

ID=14775912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52120020A Expired JPS5829906B2 (en) 1977-10-07 1977-10-07 Detection circuit for facsimile

Country Status (1)

Country Link
JP (1) JPS5829906B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194967A (en) * 1989-07-21 1993-03-16 Brother Kogyo Kabushiki Kaisha Communication managing data processing device in facsimile machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147333A (en) * 1984-08-01 1986-03-07 株式会社　寺岡精工 Labeller
JPS6183508U (en) * 1984-11-02 1986-06-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837010A (en) * 1971-09-13 1973-05-31
JPS4924615A (en) * 1972-07-03 1974-03-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837010A (en) * 1971-09-13 1973-05-31
JPS4924615A (en) * 1972-07-03 1974-03-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194967A (en) * 1989-07-21 1993-03-16 Brother Kogyo Kabushiki Kaisha Communication managing data processing device in facsimile machine
USRE36211E (en) * 1989-07-21 1999-05-18 Brother Kogyo Kabushiki Kaisha Communication managing data processing device in facsimile machine

Also Published As

Publication number Publication date
JPS5829906B2 (en) 1983-06-25

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