GB2021296A - Transmission installation with selective calling between users through a processor - Google Patents

Transmission installation with selective calling between users through a processor

Info

Publication number
GB2021296A
GB2021296A GB7912774A GB7912774A GB2021296A GB 2021296 A GB2021296 A GB 2021296A GB 7912774 A GB7912774 A GB 7912774A GB 7912774 A GB7912774 A GB 7912774A GB 2021296 A GB2021296 A GB 2021296A
Authority
GB
United Kingdom
Prior art keywords
processor
users
send
selective calling
receive
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
GB7912774A
Other versions
GB2021296B (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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB2021296A publication Critical patent/GB2021296A/en
Application granted granted Critical
Publication of GB2021296B publication Critical patent/GB2021296B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H04W88/187—Selective call encoders for paging networks, e.g. paging centre devices using digital or pulse address codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)

Abstract

Equipment for calling people, with which the persons provided with portable send-receive units (1, 28) can be intercalled selectively through a send-receive processor (23). In order to have light portable units, these are built to send a signal according to a simple code (7). In the processor, conversion means (21) are provided to receive the calling signal, coded according to the simple code, and to convert it into a calling signal coded according to a reliable transmission code (13).
GB7912774A 1977-08-25 1978-08-16 Transmission installation with selective calling between users through a processor Expired GB2021296B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2738278A DE2738278C2 (en) 1977-08-25 1977-08-25 Radio system with wireless transmission between portable transceiver devices and with selective calls between the participants with the interposition of a control center

Publications (2)

Publication Number Publication Date
GB2021296A true GB2021296A (en) 1979-03-08
GB2021296B GB2021296B (en) 1982-04-07

Family

ID=6017239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912774A Expired GB2021296B (en) 1977-08-25 1978-08-16 Transmission installation with selective calling between users through a processor

Country Status (12)

Country Link
AT (1) AT377882B (en)
BE (1) BE869907A (en)
CH (1) CH625378A5 (en)
DE (1) DE2738278C2 (en)
FI (1) FI782557A (en)
FR (1) FR2401578A1 (en)
GB (1) GB2021296B (en)
IT (1) IT1098749B (en)
NL (1) NL7808703A (en)
NO (1) NO149449C (en)
SE (1) SE434590B (en)
WO (1) WO1979000110A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961644U (en) * 1982-10-15 1984-04-23 日本電気株式会社 selective call receiver
DE3315625A1 (en) * 1983-04-29 1984-10-31 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR TRANSMITTING DIGITAL CALL MARKS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616340B2 (en) * 1968-01-25 1973-10-04 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Intercom system with wireless transmission between subscribers with portable devices via a control center
DE1931480B2 (en) * 1969-06-20 1976-03-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt CIRCUIT FOR PRESELECTION OF EQUAL FREQUENCY DISTANCED TRANSMITTERS
FR2152346B1 (en) * 1971-09-06 1975-07-11 Materiel Telephonique
CH573688A5 (en) * 1974-07-11 1976-03-15 Hasler Ag

Also Published As

Publication number Publication date
FR2401578B1 (en) 1983-05-27
ATA577378A (en) 1984-09-15
GB2021296B (en) 1982-04-07
IT7827001A0 (en) 1978-08-24
FI782557A (en) 1979-02-26
IT1098749B (en) 1985-09-07
SE434590B (en) 1984-07-30
SE7903041L (en) 1979-04-05
FR2401578A1 (en) 1979-03-23
NO149449B (en) 1984-01-09
DE2738278C2 (en) 1982-06-03
AT377882B (en) 1985-05-10
CH625378A5 (en) 1981-09-15
BE869907A (en) 1978-12-18
WO1979000110A1 (en) 1979-03-08
NO782875L (en) 1979-02-27
NO149449C (en) 1984-04-18
NL7808703A (en) 1979-02-27
DE2738278A1 (en) 1979-03-01

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee