JPS5723347A - Communication system - Google Patents

Communication system

Info

Publication number
JPS5723347A
JPS5723347A JP9707580A JP9707580A JPS5723347A JP S5723347 A JPS5723347 A JP S5723347A JP 9707580 A JP9707580 A JP 9707580A JP 9707580 A JP9707580 A JP 9707580A JP S5723347 A JPS5723347 A JP S5723347A
Authority
JP
Japan
Prior art keywords
circuit
transmission
signal
base station
control signal
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
JP9707580A
Other languages
Japanese (ja)
Other versions
JPH0145260B2 (en
Inventor
Eiichiro Murata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9707580A priority Critical patent/JPS5723347A/en
Publication of JPS5723347A publication Critical patent/JPS5723347A/en
Publication of JPH0145260B2 publication Critical patent/JPH0145260B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

PURPOSE:To effectively use a communication circuit without generating an idle time, by transmitting a discrimination signal together with a transmision control signal from a base station side, and detecting te number of terminal stations for stopping the transmission before the assignment timing by each terminal station, so that transmission timing can be shifted. CONSTITUTION:A control signal from a base station, which has been received from an antenna 41 is converted to a digital signal by a demodulation circuit 44, and a polling signal is detected by a detecting circuit 45. When the polling signal is detected, a timer circuit 46 for synchronizing transmission timing starts its operation, also whether transmission is necessary or not is decided by a transmission control signal detecting circuit 47, the transmission timing is calculated by an operating circuit 48, and a transmission controlling circuit 49 is driven. When a transmission command signal is outputted, a data is read out from a data storing circuit 52, and is transmitted to the base station through an antenna switching circuit 42.
JP9707580A 1980-07-15 1980-07-15 Communication system Granted JPS5723347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9707580A JPS5723347A (en) 1980-07-15 1980-07-15 Communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9707580A JPS5723347A (en) 1980-07-15 1980-07-15 Communication system

Publications (2)

Publication Number Publication Date
JPS5723347A true JPS5723347A (en) 1982-02-06
JPH0145260B2 JPH0145260B2 (en) 1989-10-03

Family

ID=14182514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9707580A Granted JPS5723347A (en) 1980-07-15 1980-07-15 Communication system

Country Status (1)

Country Link
JP (1) JPS5723347A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170172A (en) * 1983-03-18 1984-09-26 Shuichi Seino Production of 2-phenylbenzotriazole
JPS59172481A (en) * 1983-03-18 1984-09-29 Shuichi Seino Production of 2-phenylbenzotriazole-n-oxide
US5129071A (en) * 1988-04-06 1992-07-07 Hitachi, Ltd. Address translation apparatus in virtual machine system using a space identifier field for discriminating datoff (dynamic address translation off) virtual machines
JP2005057355A (en) * 2003-08-06 2005-03-03 Mitsumi Electric Co Ltd Communication system, communication apparatus, and communication method
JP2009005389A (en) * 2008-08-07 2009-01-08 Mitsumi Electric Co Ltd Communication system, communication apparatus and communication method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121161A (en) * 1978-03-13 1979-09-20 Mitsubishi Electric Corp Selective transmission polling system
JPS5547752A (en) * 1978-10-03 1980-04-04 Mitsubishi Electric Corp Data collection method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121161A (en) * 1978-03-13 1979-09-20 Mitsubishi Electric Corp Selective transmission polling system
JPS5547752A (en) * 1978-10-03 1980-04-04 Mitsubishi Electric Corp Data collection method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170172A (en) * 1983-03-18 1984-09-26 Shuichi Seino Production of 2-phenylbenzotriazole
JPS59172481A (en) * 1983-03-18 1984-09-29 Shuichi Seino Production of 2-phenylbenzotriazole-n-oxide
JPH0429670B2 (en) * 1983-03-18 1992-05-19
US5129071A (en) * 1988-04-06 1992-07-07 Hitachi, Ltd. Address translation apparatus in virtual machine system using a space identifier field for discriminating datoff (dynamic address translation off) virtual machines
JP2005057355A (en) * 2003-08-06 2005-03-03 Mitsumi Electric Co Ltd Communication system, communication apparatus, and communication method
JP2009005389A (en) * 2008-08-07 2009-01-08 Mitsumi Electric Co Ltd Communication system, communication apparatus and communication method

Also Published As

Publication number Publication date
JPH0145260B2 (en) 1989-10-03

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