GB1423972A - Radio communication system - Google Patents

Radio communication system

Info

Publication number
GB1423972A
GB1423972A GB837674A GB837674A GB1423972A GB 1423972 A GB1423972 A GB 1423972A GB 837674 A GB837674 A GB 837674A GB 837674 A GB837674 A GB 837674A GB 1423972 A GB1423972 A GB 1423972A
Authority
GB
United Kingdom
Prior art keywords
frequency
station
channel
busy
detector
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.)
Expired
Application number
GB837674A
Other languages
English (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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1423972A publication Critical patent/GB1423972A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00Jamming of communication; Counter-measures
    • H04K3/20Countermeasures against jamming
    • H04K3/22Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • H04K3/226Selection of non-jammed channel for communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
GB837674A 1973-02-28 1974-02-25 Radio communication system Expired GB1423972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7302803A SE370841B (xx) 1973-02-28 1973-02-28

Publications (1)

Publication Number Publication Date
GB1423972A true GB1423972A (en) 1976-02-04

Family

ID=20316758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB837674A Expired GB1423972A (en) 1973-02-28 1974-02-25 Radio communication system

Country Status (10)

Country Link
JP (1) JPS5026417A (xx)
BE (1) BE811603A (xx)
CH (1) CH574697A5 (xx)
DE (1) DE2408587C3 (xx)
DK (1) DK141190B (xx)
FR (1) FR2219595B1 (xx)
GB (1) GB1423972A (xx)
IT (1) IT1008329B (xx)
NL (1) NL7402506A (xx)
SE (1) SE370841B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594944A (en) * 1990-11-27 1997-01-14 Canon Kabushiki Kaisha Communication channel selection method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108349A (en) * 1977-03-04 1978-09-21 Fujitsu Ltd Micro-diagnosis system
JPS5866161A (ja) * 1981-10-16 1983-04-20 Fujitsu Ltd 診断方式
DE3211325C1 (de) * 1982-03-27 1989-05-18 Rohde & Schwarz GmbH & Co KG, 8000 München System zum automatischen Aufbau einer Kurzwellen-Telegrafiezeichen-Verbindung
JPS60179861A (ja) * 1984-02-27 1985-09-13 Fujitsu Ltd 入出力システムのメモリ診断方式
EP0202485B1 (en) * 1985-04-22 1993-11-18 Nec Corporation Method of determining optimal transmission channel in multistation communications system
JPH0815351B2 (ja) * 1986-05-31 1996-02-14 日本電気株式会社 コ−ドレス電話方式
DE3907568A1 (de) * 1989-03-09 1990-09-13 Bosch Gmbh Robert Verfahren zur drahtlosen uebertragung von informationen
DE3933835A1 (de) * 1989-10-10 1991-04-18 Grundig Emv Schnurloser telefonapparat mit einer in der mobilstation und der basisstation angeordneten sendersuchlaufeinrichtung und mit einem mit der sendersuchlaufeinrichtung verbundenen speicher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594944A (en) * 1990-11-27 1997-01-14 Canon Kabushiki Kaisha Communication channel selection method

Also Published As

Publication number Publication date
DK141190B (da) 1980-01-28
NL7402506A (xx) 1974-08-30
BE811603A (fr) 1974-08-26
DK141190C (xx) 1980-07-07
FR2219595A1 (xx) 1974-09-20
IT1008329B (it) 1976-11-10
FR2219595B1 (xx) 1976-12-03
DE2408587A1 (de) 1974-09-05
DE2408587C3 (de) 1978-12-07
JPS5026417A (xx) 1975-03-19
SE370841B (xx) 1974-10-28
CH574697A5 (xx) 1976-04-15
DE2408587B2 (de) 1978-04-27

Similar Documents

Publication Publication Date Title
US4104486A (en) System for accumulating data over nondedicated telephone lines
US4601064A (en) Communication system
US4508935A (en) Cordless telephone having a remote control function
US4443661A (en) Method of detecting troubles in a receiver for a common control channel of a mobile radio telephone communication system and a system therefor
US3851251A (en) Receiver method and apparatus
USRE35035E (en) Locating system and method
CA2058737A1 (en) Rf repeater arrangement with improved frequency reuse for wireless telephones
US4166927A (en) Apparatus and method for frequency channel selection in a radiotelephone system
GB2078467A (en) Radio paging system capable of accepting message with access of paging receiver
KR930702828A (ko) 혼잡 및 통화 거리 초과 상태 표시 기능을 지원하는 무선 전화 시스템
CA2117417A1 (en) Apparatus and Method for Identifying a Failed Subscriber Unit in a Wireless Communication System
GB1423972A (en) Radio communication system
MY131346A (en) Method and apparatus for channel utilization in extended spectrum public cordless telephone systems
US4326256A (en) Frequency discriminating circuit
US4376310A (en) Mobile data terminal channel busy arrangement
US5325420A (en) Cordless phone haaving a plurality of personal stations
MY124287A (en) Cordless telephone system
GB1249199A (en) A vehicular radio-telephony system
US4313038A (en) DTMF Signal receiver
US3631497A (en) Duplex radiocommunication equipment
EP0395092A2 (en) Mobile telephone system
JPS56109051A (en) Prevention system of incorrect usage of mobile set
CA2021795A1 (en) Channel selection system for mobile radio communication equipment
US3864522A (en) Automatic telephone location system
US4028501A (en) Method and apparatus for translating multiple frequency signalling

Legal Events

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