JPH0256872B2 - - Google Patents

Info

Publication number
JPH0256872B2
JPH0256872B2 JP6379684A JP6379684A JPH0256872B2 JP H0256872 B2 JPH0256872 B2 JP H0256872B2 JP 6379684 A JP6379684 A JP 6379684A JP 6379684 A JP6379684 A JP 6379684A JP H0256872 B2 JPH0256872 B2 JP H0256872B2
Authority
JP
Japan
Prior art keywords
bell
signal
bell signal
ringing
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.)
Expired
Application number
JP6379684A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60208155A (ja
Inventor
Shigeyasu Tanaka
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP6379684A priority Critical patent/JPS60208155A/ja
Publication of JPS60208155A publication Critical patent/JPS60208155A/ja
Publication of JPH0256872B2 publication Critical patent/JPH0256872B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
JP6379684A 1984-03-31 1984-03-31 公衆電話機 Granted JPS60208155A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6379684A JPS60208155A (ja) 1984-03-31 1984-03-31 公衆電話機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6379684A JPS60208155A (ja) 1984-03-31 1984-03-31 公衆電話機

Publications (2)

Publication Number Publication Date
JPS60208155A JPS60208155A (ja) 1985-10-19
JPH0256872B2 true JPH0256872B2 (enrdf_load_stackoverflow) 1990-12-03

Family

ID=13239695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6379684A Granted JPS60208155A (ja) 1984-03-31 1984-03-31 公衆電話機

Country Status (1)

Country Link
JP (1) JPS60208155A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS60208155A (ja) 1985-10-19

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