JPS5535580A - Automatic answering facsimile device and its analogous device - Google Patents

Automatic answering facsimile device and its analogous device

Info

Publication number
JPS5535580A
JPS5535580A JP10946178A JP10946178A JPS5535580A JP S5535580 A JPS5535580 A JP S5535580A JP 10946178 A JP10946178 A JP 10946178A JP 10946178 A JP10946178 A JP 10946178A JP S5535580 A JPS5535580 A JP S5535580A
Authority
JP
Japan
Prior art keywords
aural
signals
answer
control
frequency
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
JP10946178A
Other languages
Japanese (ja)
Inventor
Katsumi Hayashi
Taizo Nakano
Yutaka Sato
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.)
NEC Corp
NTT Inc
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10946178A priority Critical patent/JPS5535580A/en
Publication of JPS5535580A publication Critical patent/JPS5535580A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Transmission Control (AREA)

Abstract

PURPOSE: To ensure an easy selection of the control signals by transmitting the control frequency signals to the selection circuit via the three-winding transformer for rectification and integration and thus actuating the relay to stop the aural answer signals.
CONSTITUTION: The aural output of sural answer signal generation circuit 1 is eliminated through narrow band blocking filter 5 for the frequency corresponding to the control signal frequency sent from the remote side terminal. And for this output, the constant loss component due to the filter is compensated by auxiliary amplifier 6. After this, the output is delivered to the circuit via three-winding transformer 2. While the control signals sent from the circuit are supplied to selection circuit 3 via transformer 2 to actuate relay 4 after rectification 7 and intergration 8 and then stop the aural answer signals given from aural frequency generator 6. Thus the control signal frequency component of the aural answer signals can be suppressed to ensure an easy selection of the control signals.
COPYRIGHT: (C)1980,JPO&Japio
JP10946178A 1978-09-05 1978-09-05 Automatic answering facsimile device and its analogous device Pending JPS5535580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10946178A JPS5535580A (en) 1978-09-05 1978-09-05 Automatic answering facsimile device and its analogous device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10946178A JPS5535580A (en) 1978-09-05 1978-09-05 Automatic answering facsimile device and its analogous device

Publications (1)

Publication Number Publication Date
JPS5535580A true JPS5535580A (en) 1980-03-12

Family

ID=14510811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10946178A Pending JPS5535580A (en) 1978-09-05 1978-09-05 Automatic answering facsimile device and its analogous device

Country Status (1)

Country Link
JP (1) JPS5535580A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027269A (en) * 1983-07-25 1985-02-12 Hitachi Ltd Detection for the other-party signal at audio response signal transmission time

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027269A (en) * 1983-07-25 1985-02-12 Hitachi Ltd Detection for the other-party signal at audio response signal transmission time

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