JPS5666946A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5666946A
JPS5666946A JP14200879A JP14200879A JPS5666946A JP S5666946 A JPS5666946 A JP S5666946A JP 14200879 A JP14200879 A JP 14200879A JP 14200879 A JP14200879 A JP 14200879A JP S5666946 A JPS5666946 A JP S5666946A
Authority
JP
Japan
Prior art keywords
demodulator
circuit
reception data
output
terminal
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.)
Granted
Application number
JP14200879A
Other languages
Japanese (ja)
Other versions
JPS5952587B2 (en
Inventor
Kazuo Kanai
Junichi Takahashi
Masanori Nakazawa
Kyoichi Nakakawara
Hiroyuki Kato
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
Toshiba 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 Nippon Telegr & Teleph Corp <Ntt>, Toshiba Corp filed Critical Nippon Telegr & Teleph Corp <Ntt>
Priority to JP54142008A priority Critical patent/JPS5952587B2/ja
Publication of JPS5666946A publication Critical patent/JPS5666946A/en
Publication of JPS5952587B2 publication Critical patent/JPS5952587B2/ja
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission

Abstract

PURPOSE:To enable to switch the operation mode of modulation and demodulation device to modulation side with the detected output of specific code, by connecting the output terminal of a demodulator to a terminal device through an OR circuit and adding its output to the rear end of the reception data obtained through an OR circuit to detect the specific code. CONSTITUTION:When an FSK wave is input to a demodulator 21 via a line 14 from a central device 11, it is demodulated and becomes a reception data at a demodulator 21. The output terminal of a demodulator 21 and the input terminal of a demodulator 22 is connected to a terminal device 12 via a wired-OR circuit 25. Further, the start code added with the first reception data is detected at a start code decoder 26 and the detected output is applied to an N-bit space decoder 27. The N-bit space decoder 27 detects the specific code added to the rear end of the transmission and reception data input via the OR circuit 25, for example, detecting the space code consecutive N-bit or more, switch from demodulator to modulator with the detected output.
JP54142008A 1979-11-05 1979-11-05 Expired JPS5952587B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54142008A JPS5952587B2 (en) 1979-11-05 1979-11-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54142008A JPS5952587B2 (en) 1979-11-05 1979-11-05

Publications (2)

Publication Number Publication Date
JPS5666946A true JPS5666946A (en) 1981-06-05
JPS5952587B2 JPS5952587B2 (en) 1984-12-20

Family

ID=15305226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54142008A Expired JPS5952587B2 (en) 1979-11-05 1979-11-05

Country Status (1)

Country Link
JP (1) JPS5952587B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963844A (en) * 1982-10-04 1984-04-11 Sanyo Electric Co Ltd Transferring method of data
JPS60169257A (en) * 1983-12-14 1985-09-02 Gen Electric Digital data transceiver for power line communication system
JPS60192442A (en) * 1984-02-08 1985-09-30 Gen Electric Carrier current digital data transceiver
JPS60198943A (en) * 1984-03-22 1985-10-08 Nec Corp Network controller for terminal device
JP2014086876A (en) * 2012-10-23 2014-05-12 Seiko Epson Corp Serial communication circuit, integrated circuit device, physical amount measurement device, electronic apparatus, mobile, and serial communication method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963844A (en) * 1982-10-04 1984-04-11 Sanyo Electric Co Ltd Transferring method of data
JPS60169257A (en) * 1983-12-14 1985-09-02 Gen Electric Digital data transceiver for power line communication system
JPH0570348B2 (en) * 1983-12-14 1993-10-04 Gen Electric
JPS60192442A (en) * 1984-02-08 1985-09-30 Gen Electric Carrier current digital data transceiver
JPS60198943A (en) * 1984-03-22 1985-10-08 Nec Corp Network controller for terminal device
JP2014086876A (en) * 2012-10-23 2014-05-12 Seiko Epson Corp Serial communication circuit, integrated circuit device, physical amount measurement device, electronic apparatus, mobile, and serial communication method
US9720876B2 (en) 2012-10-23 2017-08-01 Seiko Epson Corporation Serial communication circuit, integrated circuit device, physical quantity measuring device, electronic apparatus, moving object, and serial communication method

Also Published As

Publication number Publication date
JPS5952587B2 (en) 1984-12-20

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