GB1305735A - - Google Patents

Info

Publication number
GB1305735A
GB1305735A GB1305735DA GB1305735A GB 1305735 A GB1305735 A GB 1305735A GB 1305735D A GB1305735D A GB 1305735DA GB 1305735 A GB1305735 A GB 1305735A
Authority
GB
United Kingdom
Prior art keywords
transmitter
receiver
modulated
carrier
june
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
Other languages
English (en)
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 filed Critical
Publication of GB1305735A publication Critical patent/GB1305735A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
GB1305735D 1970-06-26 1970-06-26 Expired GB1305735A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3117770 1970-06-26

Publications (1)

Publication Number Publication Date
GB1305735A true GB1305735A (enrdf_load_stackoverflow) 1973-02-07

Family

ID=10319161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305735D Expired GB1305735A (enrdf_load_stackoverflow) 1970-06-26 1970-06-26

Country Status (1)

Country Link
GB (1) GB1305735A (enrdf_load_stackoverflow)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years