KR950021891U - Telephone interface circuit using power amplifier - Google Patents

Telephone interface circuit using power amplifier

Info

Publication number
KR950021891U
KR950021891U KR2019930026309U KR930026309U KR950021891U KR 950021891 U KR950021891 U KR 950021891U KR 2019930026309 U KR2019930026309 U KR 2019930026309U KR 930026309 U KR930026309 U KR 930026309U KR 950021891 U KR950021891 U KR 950021891U
Authority
KR
South Korea
Prior art keywords
power amplifier
interface circuit
telephone interface
telephone
circuit
Prior art date
Application number
KR2019930026309U
Other languages
Korean (ko)
Other versions
KR960007512Y1 (en
Inventor
김성호
Original Assignee
대우전자 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 대우전자 주식회사 filed Critical 대우전자 주식회사
Priority to KR2019930026309U priority Critical patent/KR960007512Y1/en
Publication of KR950021891U publication Critical patent/KR950021891U/en
Application granted granted Critical
Publication of KR960007512Y1 publication Critical patent/KR960007512Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
    • 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)
  • Telephonic Communication Services (AREA)
KR2019930026309U 1993-12-03 1993-12-03 Telephone interface circuit using power amplifier KR960007512Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019930026309U KR960007512Y1 (en) 1993-12-03 1993-12-03 Telephone interface circuit using power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019930026309U KR960007512Y1 (en) 1993-12-03 1993-12-03 Telephone interface circuit using power amplifier

Publications (2)

Publication Number Publication Date
KR950021891U true KR950021891U (en) 1995-07-28
KR960007512Y1 KR960007512Y1 (en) 1996-08-29

Family

ID=19369770

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019930026309U KR960007512Y1 (en) 1993-12-03 1993-12-03 Telephone interface circuit using power amplifier

Country Status (1)

Country Link
KR (1) KR960007512Y1 (en)

Also Published As

Publication number Publication date
KR960007512Y1 (en) 1996-08-29

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19990731

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee