[go: up one dir, main page]

JPS5582552A - Bidirectional data communication system - Google Patents

Bidirectional data communication system

Info

Publication number
JPS5582552A
JPS5582552A JP15782178A JP15782178A JPS5582552A JP S5582552 A JPS5582552 A JP S5582552A JP 15782178 A JP15782178 A JP 15782178A JP 15782178 A JP15782178 A JP 15782178A JP S5582552 A JPS5582552 A JP S5582552A
Authority
JP
Japan
Prior art keywords
signal
data
time
center
group
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP15782178A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Oota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP15782178A priority Critical patent/JPS5582552A/en
Publication of JPS5582552A publication Critical patent/JPS5582552A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To shorten the total polling time, by constituting that each terminal unit in the group can deliver the response data signal to the center after the detection of group polling signal and respective different time. CONSTITUTION:The group polling signal from the center I enters the terminal signal processor 26. When group polling, the time measurement starts from the time point and after the time obtained based on the specific address register 27 to the terminal, the channel data from the channel selector 28 is fed to the upward signal transmitter 29 and delivers it to the center I. The upward signal is demodulated at the data signal demodulator 18 and then is fed to the communication signal data processor, and the data is input to the CPU16.
JP15782178A 1978-12-18 1978-12-18 Bidirectional data communication system Pending JPS5582552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15782178A JPS5582552A (en) 1978-12-18 1978-12-18 Bidirectional data communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15782178A JPS5582552A (en) 1978-12-18 1978-12-18 Bidirectional data communication system

Publications (1)

Publication Number Publication Date
JPS5582552A true JPS5582552A (en) 1980-06-21

Family

ID=15658033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15782178A Pending JPS5582552A (en) 1978-12-18 1978-12-18 Bidirectional data communication system

Country Status (1)

Country Link
JP (1) JPS5582552A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875345A (en) * 1981-10-30 1983-05-07 Fuji Xerox Co Ltd Transmitting system of digital signal
JPS5940742A (en) * 1982-08-31 1984-03-06 Matsushita Electric Works Ltd Remote supervisory and controlling system
US4456790A (en) * 1982-02-08 1984-06-26 Bell Telephone Laboratories, Incorporated Automated hardware inventory system
JPS59148456A (en) * 1983-02-14 1984-08-25 Fujitsu Ltd Multi-station polling system
EP0133567A2 (en) * 1983-08-11 1985-02-27 Wang Laboratories Inc. A method of polling and a communication system for ascertaining service needs
JPS60120634A (en) * 1983-12-02 1985-06-28 Toshiba Corp Data transmitter
JPS60180250A (en) * 1984-02-27 1985-09-14 Nec Corp Remote supervisory system
JPS6156588A (en) * 1984-05-31 1986-03-22 アメリカン　テレビジヨン　アンド　コミユニケ−シヨンズ　コ−ポレ−シヨン Cable television system
JPS61140244A (en) * 1984-12-12 1986-06-27 Hitachi Ltd Overall distribution automating device
JPS61144993A (en) * 1984-12-19 1986-07-02 Toshiba Corp Bidirectional catv
JPS61144991A (en) * 1984-12-19 1986-07-02 Toshiba Corp Bidirectional catv
JPS61177047A (en) * 1985-01-31 1986-08-08 Matsushita Electric Ind Co Ltd Centralized control system for terminal
JPS61287392A (en) * 1985-06-13 1986-12-17 Shimizu Constr Co Ltd Information communication system for gathered dwelling houses
JPS622739A (en) * 1985-06-28 1987-01-08 Shimizu Constr Co Ltd Multiple dwelling house containing information communication system
JPS6245245A (en) * 1985-08-23 1987-02-27 Nec Home Electronics Ltd Polling method in lighting line carrier communication
JPS62181549A (en) * 1986-02-05 1987-08-08 Komatsu Ltd Signal transmission system
JPS6454443U (en) * 1987-09-30 1989-04-04
JPH01168136A (en) * 1987-12-23 1989-07-03 Nec Corp Electronic exchange
JPH01245634A (en) * 1988-03-26 1989-09-29 Hitachi Cable Ltd Time slot data transmission method
JPH02177638A (en) * 1988-12-28 1990-07-10 Hochiki Corp Polling system
JPH0463082A (en) * 1990-06-29 1992-02-28 Maspro Denkoh Corp Center equipment for bidirectional communication system
JPH0677968A (en) * 1991-02-08 1994-03-18 Internatl Business Mach Corp <Ibm> Apparatus and method for communication between nodes in network

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875345A (en) * 1981-10-30 1983-05-07 Fuji Xerox Co Ltd Transmitting system of digital signal
JPS6338130B2 (en) * 1981-10-30 1988-07-28 Fuji Xerox Co Ltd
US4456790A (en) * 1982-02-08 1984-06-26 Bell Telephone Laboratories, Incorporated Automated hardware inventory system
JPS5940742A (en) * 1982-08-31 1984-03-06 Matsushita Electric Works Ltd Remote supervisory and controlling system
JPS59148456A (en) * 1983-02-14 1984-08-25 Fujitsu Ltd Multi-station polling system
EP0133567A2 (en) * 1983-08-11 1985-02-27 Wang Laboratories Inc. A method of polling and a communication system for ascertaining service needs
JPS60120634A (en) * 1983-12-02 1985-06-28 Toshiba Corp Data transmitter
JPH0441541B2 (en) * 1983-12-02 1992-07-08 Tokyo Shibaura Electric Co
JPS60180250A (en) * 1984-02-27 1985-09-14 Nec Corp Remote supervisory system
JPS6156588A (en) * 1984-05-31 1986-03-22 アメリカン　テレビジヨン　アンド　コミユニケ−シヨンズ　コ−ポレ−シヨン Cable television system
JPS61140244A (en) * 1984-12-12 1986-06-27 Hitachi Ltd Overall distribution automating device
JPH069354B2 (en) * 1984-12-12 1994-02-02 株式会社日立製作所 Distribution automation system
JPS61144991A (en) * 1984-12-19 1986-07-02 Toshiba Corp Bidirectional catv
JPS61144993A (en) * 1984-12-19 1986-07-02 Toshiba Corp Bidirectional catv
JPH0582789B2 (en) * 1984-12-19 1993-11-22 Tokyo Shibaura Electric Co
JPS61177047A (en) * 1985-01-31 1986-08-08 Matsushita Electric Ind Co Ltd Centralized control system for terminal
JPS61287392A (en) * 1985-06-13 1986-12-17 Shimizu Constr Co Ltd Information communication system for gathered dwelling houses
JPS622739A (en) * 1985-06-28 1987-01-08 Shimizu Constr Co Ltd Multiple dwelling house containing information communication system
JPS6245245A (en) * 1985-08-23 1987-02-27 Nec Home Electronics Ltd Polling method in lighting line carrier communication
JPS62181549A (en) * 1986-02-05 1987-08-08 Komatsu Ltd Signal transmission system
JPH0720104B2 (en) * 1986-02-05 1995-03-06 株式会社小松製作所 Signal transmission device
JPS6454443U (en) * 1987-09-30 1989-04-04
JP2517698Y2 (en) * 1987-09-30 1996-11-20 日本電気ホームエレクトロニクス株式会社 Broadcast communication system
JPH01168136A (en) * 1987-12-23 1989-07-03 Nec Corp Electronic exchange
JPH0648819B2 (en) * 1987-12-23 1994-06-22 日本電気株式会社 Electronic exchange
JPH01245634A (en) * 1988-03-26 1989-09-29 Hitachi Cable Ltd Time slot data transmission method
JPH02177638A (en) * 1988-12-28 1990-07-10 Hochiki Corp Polling system
JPH0463082A (en) * 1990-06-29 1992-02-28 Maspro Denkoh Corp Center equipment for bidirectional communication system
JPH0677968A (en) * 1991-02-08 1994-03-18 Internatl Business Mach Corp <Ibm> Apparatus and method for communication between nodes in network

Similar Documents

Publication Publication Date Title
JPS5582552A (en) Bidirectional data communication system
JPS56109057A (en) Data communication system
JPS5531334A (en) Circuit-packet combined data exchange system
JPS5373019A (en) Signal detection system
JPS55147851A (en) Communication controlling system
JPS5621443A (en) Transmission unit
JPS51150933A (en) 2-line type semi-double data transmission system
JPS5294721A (en) Information processing system using tv communication system
JPS5336107A (en) Group polling circuit connection system
JPS5347738A (en) Detection circuit for process request
JPS53126832A (en) Data transmission device
JPS51137340A (en) Data processing unit
JPS5537644A (en) Input-output circuit of microcomputer
JPS52146102A (en) Terminal equipment in a simple data communicating system
JPS5493908A (en) Identifying system for data transmission velocity and code type
JPS5363910A (en) Audible signal sound signal detection system
JPS5377433A (en) Control system of plural terminals by computer
JPS5356936A (en) Transfer control system
JPS5350627A (en) Polling control system
JPS5665549A (en) Transmission and reception system of time waiting type
JPS55162144A (en) Assigning circuit for number of digits of transmitted data
JPS5379407A (en) Terminal equipment for serites type interface
JPS54156404A (en) Carrier information transmission system in multi-modem system
JPS5476032A (en) Communication control system
JPS5493939A (en) Interruption control system