GB748447A - - Google Patents

Info

Publication number
GB748447A
GB748447A GB748447DA GB748447A GB 748447 A GB748447 A GB 748447A GB 748447D A GB748447D A GB 748447DA GB 748447 A GB748447 A GB 748447A
Authority
GB
United Kingdom
Prior art keywords
impulses
valve
relay
line
amplifier
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.)
Active
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.)
Publication of GB748447A publication Critical patent/GB748447A/en
Priority claimed from US328159A external-priority patent/US2938081A/en
Active 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
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/025—Selective call decoders
    • H04W88/027—Selective call decoders using frequency address codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB748447D 1952-12-27 Active GB748447A (uk)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328159A US2938081A (en) 1952-12-27 1952-12-27 Selective transmission system for telephonic ringing

Publications (1)

Publication Number Publication Date
GB748447A true GB748447A (uk)

Family

ID=23279765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB748447D Active GB748447A (uk) 1952-12-27

Country Status (2)

Country Link
FR (1) FR1098966A (uk)
GB (1) GB748447A (uk)

Also Published As

Publication number Publication date
FR1098966A (uk)

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