JPS55118138A - Priority control system - Google Patents

Priority control system

Info

Publication number
JPS55118138A
JPS55118138A JP2644379A JP2644379A JPS55118138A JP S55118138 A JPS55118138 A JP S55118138A JP 2644379 A JP2644379 A JP 2644379A JP 2644379 A JP2644379 A JP 2644379A JP S55118138 A JPS55118138 A JP S55118138A
Authority
JP
Japan
Prior art keywords
transmission
circuit
output
station
self
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
JP2644379A
Other languages
Japanese (ja)
Other versions
JPS6326576B2 (en
Inventor
Haruka Nakamura
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2644379A priority Critical patent/JPS55118138A/en
Publication of JPS55118138A publication Critical patent/JPS55118138A/en
Publication of JPS6326576B2 publication Critical patent/JPS6326576B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the using efficiency of the transmission line and then increase the processing speed of the system, by securing the automatic transmission for only the higher-priority terminal in case the simultaneous transmission is given from several terminals.
CONSTITUTION: When the address is transmitted to input/output terminal (a) from other terminal unit B, mask circuit 15 is set by output C of receiver 23 if self-station A is not under transmission. Output (d) of circuit 15 is supplied to input/output control part 11 as well as to NOR gate 19 to block the start of serial data transmission part 12 in the state under which circuit 15 is set. Circuit 15 is reset when the high-level state of lines (a) and (c) continuous for two bits after end of the transmission of data code DA and address code ADR of other station B. At this time point, control part 11 gives start to part 12 to start the tramsmission of self- station A.
COPYRIGHT: (C)1980,JPO&Japio
JP2644379A 1979-03-06 1979-03-06 Priority control system Granted JPS55118138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2644379A JPS55118138A (en) 1979-03-06 1979-03-06 Priority control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2644379A JPS55118138A (en) 1979-03-06 1979-03-06 Priority control system

Publications (2)

Publication Number Publication Date
JPS55118138A true JPS55118138A (en) 1980-09-10
JPS6326576B2 JPS6326576B2 (en) 1988-05-30

Family

ID=12193642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2644379A Granted JPS55118138A (en) 1979-03-06 1979-03-06 Priority control system

Country Status (1)

Country Link
JP (1) JPS55118138A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107656A (en) * 1980-11-06 1982-07-05 Cselt Centro Studi Lab Telecom Random access channel distribution structure message exchange system for message speech between processing units
JPS58225756A (en) * 1982-06-24 1983-12-27 Matsushita Electric Ind Co Ltd Serial data communication device
JPS61222344A (en) * 1985-03-27 1986-10-02 Hochiki Corp Waiting time setting device for data transmission system
JPS6424538A (en) * 1987-07-20 1989-01-26 Matsushita Electric Ind Co Ltd Communication control system
US7019866B1 (en) 1999-08-30 2006-03-28 Hewlett-Packard Development Company, L.P. Common communication bus and protocol for multiple injet printheads in a printing system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11309264A (en) * 1998-04-27 1999-11-09 Aruze Corp Signal transmission system between units in game machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107656A (en) * 1980-11-06 1982-07-05 Cselt Centro Studi Lab Telecom Random access channel distribution structure message exchange system for message speech between processing units
JPS6365177B2 (en) * 1980-11-06 1988-12-14
JPS58225756A (en) * 1982-06-24 1983-12-27 Matsushita Electric Ind Co Ltd Serial data communication device
JPS61222344A (en) * 1985-03-27 1986-10-02 Hochiki Corp Waiting time setting device for data transmission system
JPS6424538A (en) * 1987-07-20 1989-01-26 Matsushita Electric Ind Co Ltd Communication control system
US7019866B1 (en) 1999-08-30 2006-03-28 Hewlett-Packard Development Company, L.P. Common communication bus and protocol for multiple injet printheads in a printing system

Also Published As

Publication number Publication date
JPS6326576B2 (en) 1988-05-30

Similar Documents

Publication Publication Date Title
JPS56111353A (en) Transmitting method for control information using common transmission line
JPS53134304A (en) Automatic telephone exchange system
JPS5745757A (en) Ring type communication system of equal level
JPS55118138A (en) Priority control system
JPS5641577A (en) Stack register circuit
JPS5470742A (en) Data bus control system
JPS5210625A (en) Conversation type data communication terminal device
JPS522205A (en) Information transmission system
JPS5633730A (en) Communication control method
JPS53128912A (en) Data transmission system
JPS5769971A (en) Video information processing system
JPS533033A (en) Code branching system for intelligent terminal unit
JPS53117349A (en) Interruption system
JPS52134317A (en) Information system
JPS543440A (en) Communication control process system
JPS534403A (en) Terminal equipment circuit block for monitor control transmission system
JPS53114636A (en) Communication line control method and its unit
JPS53101245A (en) Interruption processor
JPS53121543A (en) Check circuit
JPS51112112A (en) Time divided multi-static picture communication system
JPS5317040A (en) Data terminal equipment
JPS54114936A (en) Bus scramble circuit
JPS5398744A (en) Data transfer system
JPS51123532A (en) Direct data input system
JPS5251834A (en) Input/output bus switching device