JPS51139201A - Start circuit for automatic telephone call anser system - Google Patents

Start circuit for automatic telephone call anser system

Info

Publication number
JPS51139201A
JPS51139201A JP6377275A JP6377275A JPS51139201A JP S51139201 A JPS51139201 A JP S51139201A JP 6377275 A JP6377275 A JP 6377275A JP 6377275 A JP6377275 A JP 6377275A JP S51139201 A JPS51139201 A JP S51139201A
Authority
JP
Japan
Prior art keywords
telephone call
anser
start circuit
automatic telephone
call 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
JP6377275A
Other languages
Japanese (ja)
Inventor
Hajime Kobayashi
Seiichi Omichi
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP6377275A priority Critical patent/JPS51139201A/en
Publication of JPS51139201A publication Critical patent/JPS51139201A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To permit reliable detection of a telephone call signal arriving within several seconds from the arrival of the first call signal.
JP6377275A 1975-05-27 1975-05-27 Start circuit for automatic telephone call anser system Pending JPS51139201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6377275A JPS51139201A (en) 1975-05-27 1975-05-27 Start circuit for automatic telephone call anser system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6377275A JPS51139201A (en) 1975-05-27 1975-05-27 Start circuit for automatic telephone call anser system

Publications (1)

Publication Number Publication Date
JPS51139201A true JPS51139201A (en) 1976-12-01

Family

ID=13238983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6377275A Pending JPS51139201A (en) 1975-05-27 1975-05-27 Start circuit for automatic telephone call anser system

Country Status (1)

Country Link
JP (1) JPS51139201A (en)

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