GB484658A - Improvements in or relating to telephone or like systems - Google Patents

Improvements in or relating to telephone or like systems

Info

Publication number
GB484658A
GB484658A GB7650/38A GB765038A GB484658A GB 484658 A GB484658 A GB 484658A GB 7650/38 A GB7650/38 A GB 7650/38A GB 765038 A GB765038 A GB 765038A GB 484658 A GB484658 A GB 484658A
Authority
GB
United Kingdom
Prior art keywords
circuit
control
valve
systems
telephone
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
GB7650/38A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB484658A publication Critical patent/GB484658A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Meter Arrangements (AREA)
  • Selective Calling Equipment (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

484,658. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Hatton, W., Haigh, L. B., and Kozma, L.) Oct. 31, 1936, No. 7650/38. Divided out of 484,568. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] In a system in which one of a number of control circuits is connected to an outgoing junction to control the operation of an automatic ticketing machine, and in which a thermionic valve is used for the reception of alternating-current signals, a test as to the operative condition of the valve is made immediatelv a control circuit is taken into use and if this is found faulty, an alarm is given, the circuit is thrown out of use, and another circuit is connected up. The invention is described with reference to a system identical with the first arrangement described in Specification 484,568.
GB7650/38A 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems Expired GB484658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29638/36A GB484568A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems

Publications (1)

Publication Number Publication Date
GB484658A true GB484658A (en) 1938-05-02

Family

ID=10294714

Family Applications (3)

Application Number Title Priority Date Filing Date
GB23537/37A Expired GB484649A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems
GB7650/38A Expired GB484658A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems
GB29638/36A Expired GB484568A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB23537/37A Expired GB484649A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB29638/36A Expired GB484568A (en) 1936-10-31 1936-10-31 Improvements in or relating to telephone or like systems

Country Status (5)

Country Link
US (1) US2201651A (en)
DE (2) DE887525C (en)
FR (1) FR828570A (en)
GB (3) GB484649A (en)
NL (2) NL56019C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597007A (en) * 1942-03-31 1952-05-20 Int Standard Electric Corp Common control circuit for operating switches rearward to calling line
BE496507A (en) * 1949-07-08
US2904635A (en) * 1950-03-02 1959-09-15 Siemens Ag Allocation of outgoing lines in automatic telecommunication systems
US2908758A (en) * 1952-09-11 1959-10-13 Gen Telephone Lab Inc Toll ticketing telephone systems
DE1035703B (en) * 1957-04-26 1958-08-07 Siemens Ag Circuit arrangement for telecommunications, in particular telephone systems with dialer operation, in which switching elements are jointly assigned to several connection paths or connection devices
CN105545881A (en) * 2015-12-04 2016-05-04 江西飞尚科技有限公司 Intelligence based hydraulic control system
CN105545879A (en) * 2015-12-04 2016-05-04 江西飞尚科技有限公司 Electromagnetic reversing valve controller based on single chip

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH134796A (en) * 1927-12-20 1929-08-15 Siemens Ag Circuit arrangement for the transmission of messages over telephone lines.
DE635669C (en) * 1932-11-01 1936-09-28 Friedrich Merk Telefonbau Akt Device for determining the number of a calling subscriber in self-access connection systems

Also Published As

Publication number Publication date
DE733911C (en) 1943-04-14
US2201651A (en) 1940-05-21
NL56019C (en)
FR828570A (en) 1938-05-20
GB484568A (en) 1938-05-02
NL56018C (en)
GB484649A (en) 1938-05-02
DE887525C (en) 1953-08-24

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