BE489875A - - Google Patents

Info

Publication number
BE489875A
BE489875A BE489875DA BE489875A BE 489875 A BE489875 A BE 489875A BE 489875D A BE489875D A BE 489875DA BE 489875 A BE489875 A BE 489875A
Authority
BE
Belgium
Application number
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 BE489875A publication Critical patent/BE489875A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/40—Signalling arrangements; Manipulation of signalling currents whereby duration of pulse or interval between two pulses is variable

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electrotherapy Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)
BE489875D 1948-06-29 BE489875A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35911A US2603715A (en) 1948-06-29 1948-06-29 Pulse position call or dial receiver

Publications (1)

Publication Number Publication Date
BE489875A true BE489875A (zh)

Family

ID=21885505

Family Applications (1)

Application Number Title Priority Date Filing Date
BE489875D BE489875A (zh) 1948-06-29

Country Status (4)

Country Link
US (1) US2603715A (zh)
BE (1) BE489875A (zh)
FR (1) FR982755A (zh)
GB (1) GB671407A (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739301A (en) * 1951-03-28 1956-03-20 Bendix Aviat Corp Checking circuit for correct number of received information pulses
US2851531A (en) * 1952-03-12 1958-09-09 Gen Telephone Lab Inc Automatic telephone systems involving toll recording facilities
US2740003A (en) * 1952-10-25 1956-03-27 Bell Telephone Labor Inc Rotational use of register circuits in telephone switching systems
US2886642A (en) * 1953-04-13 1959-05-12 Gen Dynamics Corp Automatic toll ticketing
US2806205A (en) * 1953-12-09 1957-09-10 Applied Science Corp Of Prince Center finder
US3212059A (en) * 1955-07-29 1965-10-12 Walter G Finch Pulse responsive drum control and readout circuit
US3051901A (en) * 1958-06-24 1962-08-28 Bell Telephone Labor Inc Encoder for pulse code modulation
US3102166A (en) * 1959-08-28 1963-08-27 Gen Dynamics Corp Toll ticketing telephone system
US3366778A (en) * 1964-11-16 1968-01-30 Bell Telephone Labor Inc Pulse register circuit

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354405A (en) * 1930-05-13 1931-08-13 Standard Telephones Cables Ltd Improvements in or relating to automatic or semi-automatic telephone exchange systems
US2074037A (en) * 1932-04-11 1937-03-16 Ibm Automatic self-synchronized transmitting system
US2006354A (en) * 1934-06-20 1935-07-02 Bell Telephone Labor Inc Telephone system
US2153202A (en) * 1934-08-17 1939-04-04 Ibm Electrical filter
US2141372A (en) * 1935-10-16 1938-12-27 Bell Telephone Labor Inc Telephone system
US2262838A (en) * 1937-11-19 1941-11-18 Int Standard Electric Corp Electric signaling system
US2222131A (en) * 1938-07-05 1940-11-19 Associated Electric Lab Inc Automatic switching system
NL87334C (zh) * 1938-10-03
US2257568A (en) * 1939-06-14 1941-09-30 Bell Telephone Labor Inc Communication system
US2341746A (en) * 1940-04-15 1944-02-15 Automatic Elect Lab Telephone system
US2424577A (en) * 1941-05-28 1947-07-29 Int Standard Electric Corp Long distance telephone signaling system
US2412974A (en) * 1941-08-29 1946-12-24 Int Standard Electric Corp Electric wave communication system
US2329022A (en) * 1941-10-01 1943-09-07 Associated Electric Lab Inc Call transmitter
US2360296A (en) * 1942-09-11 1944-10-10 Automatic Elect Lab Signaling system
US2415929A (en) * 1942-09-26 1947-02-18 Rca Corp Radio pulse system
US2351446A (en) * 1942-12-22 1944-06-13 Bell Telephone Labor Inc Sender load control
US2383126A (en) * 1943-07-08 1945-08-21 Rca Corp Spaced wave keying
US2471473A (en) * 1943-11-01 1949-05-31 Standard Telephones Cables Ltd Transmission system
GB583541A (en) * 1944-06-22 1946-12-20 Standard Telephones Cables Ltd Improvements in or relating to pulse modulation systems of electric communication
US2520170A (en) * 1945-11-14 1950-08-29 Standard Telephones Cables Ltd Pulse responsive circuit
NL76339C (zh) * 1946-02-07
US2443198A (en) * 1946-09-06 1948-06-15 Max E Sallach Pulse selector unit

Also Published As

Publication number Publication date
FR982755A (fr) 1951-06-14
US2603715A (en) 1952-07-15
GB671407A (en) 1952-05-07

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