KR930016879U - 링백톤 신호 검출회로 - Google Patents

링백톤 신호 검출회로

Info

Publication number
KR930016879U
KR930016879U KR2019910025419U KR910025419U KR930016879U KR 930016879 U KR930016879 U KR 930016879U KR 2019910025419 U KR2019910025419 U KR 2019910025419U KR 910025419 U KR910025419 U KR 910025419U KR 930016879 U KR930016879 U KR 930016879U
Authority
KR
South Korea
Prior art keywords
detection circuit
signal detection
tone signal
back tone
ring back
Prior art date
Application number
KR2019910025419U
Other languages
English (en)
Other versions
KR960000661Y1 (ko
Inventor
홍성국
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR2019910025419U priority Critical patent/KR960000661Y1/ko
Publication of KR930016879U publication Critical patent/KR930016879U/ko
Application granted granted Critical
Publication of KR960000661Y1 publication Critical patent/KR960000661Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H04M15/30—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal the meter or calculation of charges not being controlled from an exchange
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
    • H04M15/12—Discriminative metering, charging or billing
    • H04M15/18—Discriminative metering, charging or billing according to duration of the call, or the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Meter Arrangements (AREA)
KR2019910025419U 1991-12-31 1991-12-31 링백톤 신호 검출회로 KR960000661Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910025419U KR960000661Y1 (ko) 1991-12-31 1991-12-31 링백톤 신호 검출회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910025419U KR960000661Y1 (ko) 1991-12-31 1991-12-31 링백톤 신호 검출회로

Publications (2)

Publication Number Publication Date
KR930016879U true KR930016879U (ko) 1993-07-29
KR960000661Y1 KR960000661Y1 (ko) 1996-01-25

Family

ID=19326933

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910025419U KR960000661Y1 (ko) 1991-12-31 1991-12-31 링백톤 신호 검출회로

Country Status (1)

Country Link
KR (1) KR960000661Y1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100245987B1 (ko) * 1997-06-27 2000-04-01 서평원 이동단말기를 이용한 통화요금 확인방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100245987B1 (ko) * 1997-06-27 2000-04-01 서평원 이동단말기를 이용한 통화요금 확인방법

Also Published As

Publication number Publication date
KR960000661Y1 (ko) 1996-01-25

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Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19990316

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee