KR920007193U - Dial pulse generation circuit of key phone - Google Patents

Dial pulse generation circuit of key phone

Info

Publication number
KR920007193U
KR920007193U KR2019900013854U KR900013854U KR920007193U KR 920007193 U KR920007193 U KR 920007193U KR 2019900013854 U KR2019900013854 U KR 2019900013854U KR 900013854 U KR900013854 U KR 900013854U KR 920007193 U KR920007193 U KR 920007193U
Authority
KR
South Korea
Prior art keywords
generation circuit
pulse generation
dial pulse
key phone
phone
Prior art date
Application number
KR2019900013854U
Other languages
Korean (ko)
Other versions
KR960002452Y1 (en
Inventor
이규수
Original Assignee
금성통신 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 금성통신 주식회사 filed Critical 금성통신 주식회사
Priority to KR2019900013854U priority Critical patent/KR960002452Y1/en
Publication of KR920007193U publication Critical patent/KR920007193U/en
Application granted granted Critical
Publication of KR960002452Y1 publication Critical patent/KR960002452Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/04—Transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
KR2019900013854U 1990-09-04 1990-09-04 Dial pulse generating circuit KR960002452Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900013854U KR960002452Y1 (en) 1990-09-04 1990-09-04 Dial pulse generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900013854U KR960002452Y1 (en) 1990-09-04 1990-09-04 Dial pulse generating circuit

Publications (2)

Publication Number Publication Date
KR920007193U true KR920007193U (en) 1992-04-22
KR960002452Y1 KR960002452Y1 (en) 1996-03-25

Family

ID=19303169

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900013854U KR960002452Y1 (en) 1990-09-04 1990-09-04 Dial pulse generating circuit

Country Status (1)

Country Link
KR (1) KR960002452Y1 (en)

Also Published As

Publication number Publication date
KR960002452Y1 (en) 1996-03-25

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee