KR930009428U - 디지탈 키폰 시스템의 인터페이스 회로 - Google Patents

디지탈 키폰 시스템의 인터페이스 회로

Info

Publication number
KR930009428U
KR930009428U KR2019910017134U KR910017134U KR930009428U KR 930009428 U KR930009428 U KR 930009428U KR 2019910017134 U KR2019910017134 U KR 2019910017134U KR 910017134 U KR910017134 U KR 910017134U KR 930009428 U KR930009428 U KR 930009428U
Authority
KR
South Korea
Prior art keywords
interface circuit
phone system
digital key
key phone
digital
Prior art date
Application number
KR2019910017134U
Other languages
English (en)
Other versions
KR970000145Y1 (ko
Inventor
박상률
Original Assignee
현대전자산업 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 현대전자산업 주식회사 filed Critical 현대전자산업 주식회사
Priority to KR2019910017134U priority Critical patent/KR970000145Y1/ko
Publication of KR930009428U publication Critical patent/KR930009428U/ko
Application granted granted Critical
Publication of KR970000145Y1 publication Critical patent/KR970000145Y1/ko

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/017509—Interface arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Dc Digital Transmission (AREA)
KR2019910017134U 1991-10-15 1991-10-15 디지탈 키폰 시스템의 인터페이스 회로 KR970000145Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019910017134U KR970000145Y1 (ko) 1991-10-15 1991-10-15 디지탈 키폰 시스템의 인터페이스 회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019910017134U KR970000145Y1 (ko) 1991-10-15 1991-10-15 디지탈 키폰 시스템의 인터페이스 회로

Publications (2)

Publication Number Publication Date
KR930009428U true KR930009428U (ko) 1993-05-26
KR970000145Y1 KR970000145Y1 (ko) 1997-01-06

Family

ID=19320590

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019910017134U KR970000145Y1 (ko) 1991-10-15 1991-10-15 디지탈 키폰 시스템의 인터페이스 회로

Country Status (1)

Country Link
KR (1) KR970000145Y1 (ko)

Also Published As

Publication number Publication date
KR970000145Y1 (ko) 1997-01-06

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A201 Request for examination
E701 Decision to grant or registration of patent right
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