KR910009001A - Μ / A-law Selection Method and Circuit in Digital Telephones - Google Patents

Μ / A-law Selection Method and Circuit in Digital Telephones Download PDF

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Publication number
KR910009001A
KR910009001A KR1019890015004A KR890015004A KR910009001A KR 910009001 A KR910009001 A KR 910009001A KR 1019890015004 A KR1019890015004 A KR 1019890015004A KR 890015004 A KR890015004 A KR 890015004A KR 910009001 A KR910009001 A KR 910009001A
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KR
South Korea
Prior art keywords
law
digital telephone
message
hooked
selecting
Prior art date
Application number
KR1019890015004A
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Korean (ko)
Other versions
KR920004152B1 (en
Inventor
손숭원
Original Assignee
정용문
삼성전자 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.)
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019890015004A priority Critical patent/KR920004152B1/en
Publication of KR910009001A publication Critical patent/KR910009001A/en
Application granted granted Critical
Publication of KR920004152B1 publication Critical patent/KR920004152B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

내용 없음.No content.

Description

디지탈 전화기에 있어서 μ/A-law 선택방법 및 회로Μ / A-law Selection Method and Circuit in Digital Telephones

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1 도는 본 발명에 따른 회로도.1 is a circuit diagram according to the present invention.

제 2 도는 본 발명에 따른 흐름도.2 is a flow chart according to the present invention.

Claims (2)

교환기에 접속된 디지탈 전화기 μ/A-law선택회로에 있어서, 사설교환기(10)에 디지탈 전화기(20)를 연결하고, 상기 디지탈 전화기(20)는 상기 사설교환기(10)로부터 전송로를 통해 전송부(21)를 연결하고, 상기 전송부(21)로부터 마이크로 프로세서(22)를 연결하며, 상기 마이크로 프로세서(22)에 후크 온/온프감지부(24)를 연결하고,마이크로 프로세서(22)의 출력포트를 콤보코엑(23)의 μ-law선택회로.In the digital telephone μ / A-law selection circuit connected to the exchanger, a digital telephone 20 is connected to the private exchange 10, and the digital telephone 20 is transmitted from the private exchange 10 via a transmission line. Connecting the unit 21, connecting the microprocessor 22 from the transmission unit 21, connecting the hook on / on detection unit 24 to the microprocessor 22, Μ-law selection circuit of the combo COEX (23). 교환기에 접속된 디지탈 전화기의 μ/A-law선택방법에 있어서, 후크 오프된 디지탈 전화기가 있는가를 체킹하는 제 1 과정과, 상기 제 1 과정의 후크오프된 전화기가 A-law방식인가를 체킹하는 제 2 과정과, 상기제 2 과정에서 A-law방식일때 상기 제 1 과정의 후크오프한 디지탈 전화기로 메세지를 송출하고 A-law방식이 아닐때 μ-law방식임을 메세지하는 제 3 과정과, 상기 제 3 과정에서 교환기로부터 μ/A-law방식을 알리는 메세지가 있는가를 체킹하는 제 4 과정과, 상기 제 4 과정에서 메세지가 있을때 콤보코덱을 A/μ-law방식으로 세팅하기 위한 데이타를 메모리로부터 가져오는 제 5 과정과, 상기 제 5 과정 실행후 제 4 과정에서 들리온 메세지가 A/μ-law방식인가를 체크하는 제 6 과정과, 상기 제 6 과정의 검색결과에 따라 상기 제 5 과정에서 읽어온 데이타에 의해 콤보코덱의 μ/A-law의 선택단의 제어로 해당방식을 선택하는 제 7 과정으로 이루어짐을 특징으로 하는 디지탈 전화기에 있어서 μ/A-law선택방법.A method for selecting a μ / A-law of a digital telephone connected to an exchange, comprising: a first step of checking whether there is a digital telephone hooked off and a check of whether the hooked-up telephone of the first procedure is an A-law method; A second step of transmitting a message to the hooked-up digital telephone of the first step when the A-law method is used in the second step, and a message of a μ-law method when the A-law method is not the A-law method; In step 3, a fourth step of checking whether there is a message informing the μ / A-law method from the exchange, and when the message is in the fourth step, data for setting the combo codec to the A / μ-law method from the memory is retrieved. The fifth step, the sixth step of checking whether the message heard in the fourth step after the fifth step is executed in the A / μ-law method, and the fifth step according to the search result of the sixth step By data [7] A method for selecting [mu] / A-law in a digital telephone comprising a seventh step of selecting a corresponding method by controlling the selection step of [mu] / A-law of a combo codec. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890015004A 1989-10-18 1989-10-18 Micron/a-law choosing method and circuit of digital telephone systems KR920004152B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890015004A KR920004152B1 (en) 1989-10-18 1989-10-18 Micron/a-law choosing method and circuit of digital telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890015004A KR920004152B1 (en) 1989-10-18 1989-10-18 Micron/a-law choosing method and circuit of digital telephone systems

Publications (2)

Publication Number Publication Date
KR910009001A true KR910009001A (en) 1991-05-31
KR920004152B1 KR920004152B1 (en) 1992-05-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890015004A KR920004152B1 (en) 1989-10-18 1989-10-18 Micron/a-law choosing method and circuit of digital telephone systems

Country Status (1)

Country Link
KR (1) KR920004152B1 (en)

Also Published As

Publication number Publication date
KR920004152B1 (en) 1992-05-25

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