FR551847A - Call selector - Google Patents

Call selector

Info

Publication number
FR551847A
FR551847A FR551847DA FR551847A FR 551847 A FR551847 A FR 551847A FR 551847D A FR551847D A FR 551847DA FR 551847 A FR551847 A FR 551847A
Authority
FR
France
Prior art keywords
call selector
selector
call
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
French (fr)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR551847A publication Critical patent/FR551847A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/24—Apparatus or circuits at the receiving end
    • H04L15/26—Apparatus or circuits at the receiving end operating only on reception of predetermined code signals, e.g. distress signals, party-line call signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
FR551847D 1921-08-19 1921-08-19 Call selector Expired FR551847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR425428X 1921-08-19

Publications (1)

Publication Number Publication Date
FR551847A true FR551847A (en) 1923-04-14

Family

ID=8898885

Family Applications (3)

Application Number Title Priority Date Filing Date
FR551847D Expired FR551847A (en) 1921-08-19 1921-08-19 Call selector
FR26462D Expired FR26462E (en) 1921-08-19 1922-01-17 Call selector
FR27600D Expired FR27600E (en) 1921-08-19 1922-07-13 Call selector

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR26462D Expired FR26462E (en) 1921-08-19 1922-01-17 Call selector
FR27600D Expired FR27600E (en) 1921-08-19 1922-07-13 Call selector

Country Status (5)

Country Link
US (3) US1655689A (en)
DE (3) DE425428C (en)
FR (3) FR551847A (en)
GB (1) GB184784A (en)
NL (1) NL15996C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514889A (en) * 1944-10-28 1950-07-11 S S Baker Automatic code selector
US2446943A (en) * 1944-10-28 1948-08-10 S S Baker Automatic radio call apparatus
US2698426A (en) * 1944-12-04 1954-12-28 Rosen Leo Pulse responsive selector
US2564692A (en) * 1945-11-14 1951-08-21 Conrad H Hoeppner Pulse group discriminator
US2533765A (en) * 1947-01-29 1950-12-12 Radio Electr Soc Fr Selector apparatus for alarm signals
US2658188A (en) * 1948-06-29 1953-11-03 Bell Telephone Labor Inc Pulse position dialing system with direct time measuring apparatus
US2839173A (en) * 1950-01-19 1958-06-17 Internat Telemeter Corp Prepaid entertainment distribution system
DE923855C (en) * 1950-05-27 1955-02-21 Siemens Ag Circuit arrangement for storing current surges by means of relay chains, in particular in telecommunications systems
US2794969A (en) * 1955-08-08 1957-06-04 Clarence O Barnhart Electro-mechanical decoder
US2889536A (en) * 1956-01-24 1959-06-02 Barber Colman Co Frequency responsive receiver for remote control system
US2981878A (en) * 1956-09-14 1961-04-25 Julian E Henderson Remote radio control system

Also Published As

Publication number Publication date
US1628653A (en) 1927-05-17
NL15996C (en)
DE426582C (en) 1926-03-15
GB184784A (en) 1923-10-08
DE425428C (en) 1926-02-23
DE426440C (en) 1926-03-13
US1655689A (en) 1928-01-10
FR26462E (en) 1924-01-03
FR27600E (en) 1924-07-31
US1661748A (en) 1928-03-06

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