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BR8300973A - Interface de linha de dados - Google Patents

Interface de linha de dados

Info

Publication number
BR8300973A
BR8300973A BR8300973A BR8300973A BR8300973A BR 8300973 A BR8300973 A BR 8300973A BR 8300973 A BR8300973 A BR 8300973A BR 8300973 A BR8300973 A BR 8300973A BR 8300973 A BR8300973 A BR 8300973A
Authority
BR
Brazil
Prior art keywords
data line
line interface
interface
data
line
Prior art date
Application number
BR8300973A
Other languages
English (en)
Inventor
Richard L Swarz
Original Assignee
Richard L Swarz
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 Richard L Swarz filed Critical Richard L Swarz
Publication of BR8300973A publication Critical patent/BR8300973A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Communication Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Bidirectional Digital Transmission (AREA)
BR8300973A 1982-03-18 1983-02-28 Interface de linha de dados BR8300973A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/359,576 US4443884A (en) 1982-03-18 1982-03-18 Data line interface

Publications (1)

Publication Number Publication Date
BR8300973A true BR8300973A (pt) 1983-11-16

Family

ID=23414411

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8300973A BR8300973A (pt) 1982-03-18 1983-02-28 Interface de linha de dados

Country Status (7)

Country Link
US (1) US4443884A (pt)
JP (1) JPS58170256A (pt)
BR (1) BR8300973A (pt)
DE (1) DE3307971A1 (pt)
FR (1) FR2523744A1 (pt)
GB (1) GB2118402B (pt)
IT (1) IT1193679B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504959A (en) * 1983-02-25 1985-03-12 Johnson Service Company Noise-neutralizing digital interface circuit
JPH0782414B2 (ja) * 1983-05-24 1995-09-06 日本電気株式会社 情報処理装置
BR8401869A (pt) * 1984-04-23 1985-11-26 Microlab Sa Repetidor de frequencia de voz
US4839802A (en) * 1986-11-19 1989-06-13 Extel Corporation Adaptation of computer to communication operation
US4885718A (en) * 1987-09-11 1989-12-05 Cybex Corporation Extended communications link for keyboard and display units remotely located from a computer
US5051980A (en) * 1988-08-11 1991-09-24 El Paso Natural Gas Company Data communication interface device
US4996453A (en) * 1989-07-28 1991-02-26 Dallas Semiconductor Power down circuit for low-power circuit with dual supply voltages
US5619722A (en) * 1994-01-18 1997-04-08 Teramar Group, Inc. Addressable communication port expander
US5841992A (en) * 1996-03-25 1998-11-24 Snap-On Tools Company Network-to-serial device intelligent converter
US6189148B1 (en) 1999-01-28 2001-02-13 Douglas G. Brown Methods and circuits using frequency shift keying modulation to transfer data over transmission lines simultaneous with television signals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR383165A (fr) * 1907-10-21 1908-02-26 Rowland Telegraphic Company Mode d'équilibrage des lignes de circuits électriques, applicable en particulier aux lignes employées dans les systèmes de télégraphie «duplex»
US3691295A (en) * 1970-03-31 1972-09-12 Ibm Two-way communication system for video and digital data
US4086534A (en) * 1977-02-14 1978-04-25 Network Systems Corporation Circuit for wire transmission of high frequency data communication pulse signals
US4277646A (en) * 1979-08-24 1981-07-07 Western Electric Company, Inc. Apparatus and method for resetting data sets
FR2469837A1 (fr) * 1979-11-07 1981-05-22 Trt Telecom Radio Electr Dispositif de detection de porteuse dans un modem muni d'un annuleur d'echo
US4317205A (en) * 1980-06-13 1982-02-23 Tcl, Inc. Wideband transceiver with EMI suppression
US4367374A (en) * 1981-02-17 1983-01-04 Novation, Inc. Modem telephone interface circuit

Also Published As

Publication number Publication date
IT1193679B (it) 1988-07-21
FR2523744A1 (fr) 1983-09-23
GB8301561D0 (en) 1983-02-23
JPS58170256A (ja) 1983-10-06
IT8319687A0 (it) 1983-02-22
DE3307971A1 (de) 1983-09-29
GB2118402B (en) 1985-09-04
US4443884A (en) 1984-04-17
GB2118402A (en) 1983-10-26

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