KR900005721A - Self-checking muldem device - Google Patents

Self-checking muldem device Download PDF

Info

Publication number
KR900005721A
KR900005721A KR1019880012827A KR880012827A KR900005721A KR 900005721 A KR900005721 A KR 900005721A KR 1019880012827 A KR1019880012827 A KR 1019880012827A KR 880012827 A KR880012827 A KR 880012827A KR 900005721 A KR900005721 A KR 900005721A
Authority
KR
South Korea
Prior art keywords
selector
demultiplexer
control
muldem
self
Prior art date
Application number
KR1019880012827A
Other languages
Korean (ko)
Other versions
KR950002266B1 (en
Inventor
정연건
Original Assignee
이만용
금성반도체 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 이만용, 금성반도체 주식회사 filed Critical 이만용
Priority to KR1019880012827A priority Critical patent/KR950002266B1/en
Publication of KR900005721A publication Critical patent/KR900005721A/en
Application granted granted Critical
Publication of KR950002266B1 publication Critical patent/KR950002266B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

내용 없음No content

Description

자체검진 가능한 멀뎀장치Self-checking muldem device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (3)

다중화부와 역다중화부와 제어부와 릴레이부를 포함하는 자체검진 가능한 멀뎀장치에 있어서, 저속전 송신호라인(a∼d)과 저속 수신출력라인(a'∼d')을 입력으로 하는 상기 릴레이부(4)는 제어인터페이스(34)의 제어신호(34a)에 의해 절환되며 상기 릴레이부(4)의 출력은 상기 다중화부(1)에 연결되고, 고속전송라인(1a)은 상기 제어부(3)의 제2셀렉터(35)와 역다중화부(2)의 제4셀렉터(23)에 연결하고, 제어부(3)의 패턴 발생기의 출력(31a)과 제어인터페이스(34) 신호(34d)를 제3셀렉터(21)에 연결하고 제1디멀티플렉서(24)는 상기 제3셀렉터(21)와 제1셀렉터(37)에 동시에 연결하여 구성한 것을 특징으로 하는 자체검진 가능한 멀뎀장치.In a self-checking muldem device including a multiplexer, a demultiplexer, a controller, and a relay unit, the relay unit for inputting the low speed transmission call lines a to d and the low speed reception output lines a 'to d' ( 4) is switched by the control signal 34a of the control interface 34, the output of the relay unit 4 is connected to the multiplexer 1, and the high speed transmission line 1a is connected to the control unit 3 The second selector 35 and the fourth selector 23 of the demultiplexer 2 are connected to each other, and the output 31a of the pattern generator of the controller 3 and the control interface 34 signal 34d are connected to the third selector. And a first demultiplexer (24) connected to the third selector (21) and the first selector (37) at the same time. 제1항에 있어서, 제어부(3)의 제어인터페이스(34)에는 패턴발생기(31), 패턴검출기(32), 제1셀렉터(37), 제2디멀티플렉서(36), 제2셀렉터(35)를 각각 연결하고, 제어장치(33)와는 버스(33a)로서 연결하고, 상기 패턴검출기(32), 제1셀렉터(37), 제2디멀티플렉서(36), 제2셀렉터(35)를 차례로 연설한 것을 특징으로 하는 자체검진 가능한 멀뎀장치.The control interface 34 of the control unit 3 includes a pattern generator 31, a pattern detector 32, a first selector 37, a second demultiplexer 36, and a second selector 35. Connected to each other, and connected to the control device 33 as a bus 33a, and the speech of the pattern detector 32, the first selector 37, the second demultiplexer 36, and the second selector 35 in sequence Self-checking muldem device characterized by. 제1항에 있어서, 제어부(3)의 패턴발생기(33)는 D1데이타 또는 D2데이타 선택에 따라 제어장치(33)의 소정의 명령에 의해 1.544Mb/S 또는 6.312Mb/S의 랜덤데이터를 발생하도록 한 자체검진 가능한 멀뎀장치.2. The pattern generator (33) of claim 1, wherein the pattern generator (33) of the control section (3) is random data of 1.544 Mb / S or 6.312 Mb / S by a predetermined command of the control device (33) according to the selection of the D 1 data or the D 2 data. Self-detectable muldem device to generate a. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880012827A 1988-09-30 1988-09-30 Multi-modem apparatus having self-testing method KR950002266B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880012827A KR950002266B1 (en) 1988-09-30 1988-09-30 Multi-modem apparatus having self-testing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880012827A KR950002266B1 (en) 1988-09-30 1988-09-30 Multi-modem apparatus having self-testing method

Publications (2)

Publication Number Publication Date
KR900005721A true KR900005721A (en) 1990-04-14
KR950002266B1 KR950002266B1 (en) 1995-03-15

Family

ID=19278181

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880012827A KR950002266B1 (en) 1988-09-30 1988-09-30 Multi-modem apparatus having self-testing method

Country Status (1)

Country Link
KR (1) KR950002266B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100772597B1 (en) * 2006-12-08 2007-11-02 한국전자통신연구원 Method and apparatus for signal transmission to receiver from transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100772597B1 (en) * 2006-12-08 2007-11-02 한국전자통신연구원 Method and apparatus for signal transmission to receiver from transmitter

Also Published As

Publication number Publication date
KR950002266B1 (en) 1995-03-15

Similar Documents

Publication Publication Date Title
KR860002870A (en) Integrated circuit devices
KR830004748A (en) Control Information Communication Device of Time Distribution Switching System
KR840004805A (en) Information output system
KR870700140A (en) Test Pattern Generator (Generator)
KR860008670A (en) Switching system and interface unit
KR900005721A (en) Self-checking muldem device
KR850006802A (en) Data transmission device
KR910003475A (en) Sequence controller
KR890012219A (en) Keyboard selection method and device in computer system
KR910700494A (en) Numerical Control Device for Transmission Line
KR910700491A (en) External Scalable Programmable Controller
KR890011076A (en) Telephone semiconductor integrated circuit
KR880700606A (en) System processor interface unit
KR860007839A (en) Speakerphone Detection Circuit
KR970049315A (en) High speed counter board built with VME bus system
KR920005093Y1 (en) Apparatus for selecting and confirmation of the i/o card in programmable controller
JPS57136239A (en) Device address switching system
KR880006870A (en) Telephone system for single video transmission
KR940010835A (en) Frequency automatic generation circuit for remote control
KR890015530A (en) Parallel Data Communication Control Circuit in Redundant Processor
KR900004191A (en) Automatic search stabilization method
KR910012939A (en) Local Bus Control Subunit
KR850006833A (en) Bidirectional transducer control for CATV
KR970049687A (en) Control circuit of parallel neural network board for mounting on AT-Bus
KR920015787A (en) Response tester of collective modem

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20000428

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee