GB2078064A - Communication control device in a duplex transmission network - Google Patents

Communication control device in a duplex transmission network

Info

Publication number
GB2078064A
GB2078064A GB8125427A GB8125427A GB2078064A GB 2078064 A GB2078064 A GB 2078064A GB 8125427 A GB8125427 A GB 8125427A GB 8125427 A GB8125427 A GB 8125427A GB 2078064 A GB2078064 A GB 2078064A
Authority
GB
United Kingdom
Prior art keywords
control device
transmission network
acknowledgment signal
duplex transmission
messages
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
GB8125427A
Other versions
GB2078064B (en
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.)
Jeumont Schneider SA
Original Assignee
Jeumont Schneider SA
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 Jeumont Schneider SA filed Critical Jeumont Schneider SA
Publication of GB2078064A publication Critical patent/GB2078064A/en
Application granted granted Critical
Publication of GB2078064B publication Critical patent/GB2078064B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/28—Controlling escape of air or dust from containers or receptacles during filling

Abstract

Duplex transmission network by rasters of known format of digital coded messages between a master station and one of the slave stations, on watch on a same feeder. Each message transmitted to one station includes a acknowledgment signal of the last message received from that station. The device is provided to allow a retransmission of the two last messages when one message received is erroneous. To this effect, it comprises a detector (5) for the acknowledgment signal, a detector (4) for the erroneous messages received, a switch (7), a acknowledgment signal coder (6), a transmission control device (9) and two memories (10, 11). Application to data transmission and telephony.
GB8125427A 1979-12-20 1980-12-15 Communication control device in a duplex transmission network Expired GB2078064B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931208A FR2472315B1 (en) 1979-12-20 1979-12-20 DEVICE FOR CONTROLLING COMMUNICATIONS IN A DUPLEX TRANSMISSION NETWORK

Publications (2)

Publication Number Publication Date
GB2078064A true GB2078064A (en) 1981-12-23
GB2078064B GB2078064B (en) 1984-05-10

Family

ID=9232984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8125427A Expired GB2078064B (en) 1979-12-20 1980-12-15 Communication control device in a duplex transmission network

Country Status (23)

Country Link
JP (1) JPS57500041A (en)
AR (1) AR223410A1 (en)
AT (1) ATA912980A (en)
AU (1) AU534993B2 (en)
BE (1) BE886706A (en)
BR (1) BR8008984A (en)
CA (1) CA1160710A (en)
CH (1) CH645223A5 (en)
DD (1) DD155577A5 (en)
DE (1) DE3050171C1 (en)
EG (1) EG13998A (en)
ES (1) ES497566A0 (en)
FR (1) FR2472315B1 (en)
GB (1) GB2078064B (en)
HK (1) HK2785A (en)
IT (1) IT1127956B (en)
MA (1) MA19013A1 (en)
MX (1) MX149442A (en)
OA (1) OA06668A (en)
SE (1) SE8106222L (en)
SG (1) SG54984G (en)
WO (1) WO1981001932A1 (en)
ZA (1) ZA807731B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995001682A1 (en) * 1993-07-02 1995-01-12 Telefonaktiebolaget Lm Ericsson Pcm link fault detection and lost block handling

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0732387B2 (en) * 1985-02-23 1995-04-10 株式会社日立製作所 Data retransmission method
US4862461A (en) * 1987-01-12 1989-08-29 International Business Machines Corp. Packet switch network protocol
JP2595603B2 (en) * 1988-01-11 1997-04-02 日本電気株式会社 Request allocation multiple access control method
US5847660A (en) * 1994-12-21 1998-12-08 Motorola, Inc. Method for avoiding interference in a cable telephony system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2031960A5 (en) * 1969-02-14 1970-11-20 Labo Cent Telecommunicat
DE2246825C3 (en) * 1972-09-23 1975-05-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt System and operating procedures for secure data transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995001682A1 (en) * 1993-07-02 1995-01-12 Telefonaktiebolaget Lm Ericsson Pcm link fault detection and lost block handling

Also Published As

Publication number Publication date
CA1160710A (en) 1984-01-17
BR8008984A (en) 1981-10-20
MX149442A (en) 1983-11-07
FR2472315A1 (en) 1981-06-26
DE3050171C1 (en) 1984-04-26
WO1981001932A1 (en) 1981-07-09
AU534993B2 (en) 1984-02-23
ES8201380A1 (en) 1981-12-16
IT1127956B (en) 1986-05-28
AU6643381A (en) 1981-07-22
SE8106222L (en) 1981-10-21
ATA912980A (en) 1989-01-15
JPS57500041A (en) 1982-01-07
DD155577A5 (en) 1982-06-16
SG54984G (en) 1985-03-08
ZA807731B (en) 1982-01-27
HK2785A (en) 1985-01-18
OA06668A (en) 1981-09-30
MA19013A1 (en) 1981-07-01
FR2472315B1 (en) 1987-05-29
BE886706A (en) 1981-04-16
AR223410A1 (en) 1981-08-14
GB2078064B (en) 1984-05-10
EG13998A (en) 1983-03-31
ES497566A0 (en) 1981-12-16
IT8050361A0 (en) 1980-12-12
CH645223A5 (en) 1984-09-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee