GB640157A - Switching system - Google Patents

Switching system

Info

Publication number
GB640157A
GB640157A GB604847A GB604847A GB640157A GB 640157 A GB640157 A GB 640157A GB 604847 A GB604847 A GB 604847A GB 604847 A GB604847 A GB 604847A GB 640157 A GB640157 A GB 640157A
Authority
GB
United Kingdom
Prior art keywords
receivers
switch
headphones
march
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.)
Expired
Application number
GB604847A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB640157A publication Critical patent/GB640157A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Abstract

640,157. Switching systems. BENDIX AVIATION CORPORATION. March 3, 1947, No. 6048. Convention date, March 27, 1946. [Class 38 (iv)] [Also in Group XXXIX] In a switching system used for monitoring several receivers A ... C switches 19 ... 21 in their left-hand positions complete parallel circuits between wires 15, 16 and in their righthand positions complete a series path 31-32, the arrangement being such that any such switch in its left-hand position connects the parallel circuit to the lower portion of the series path and disconnects its upper portion. With the switch 22 in its lower position any combination of the receivers A ... C can be connected via the amplifier 10 to the headphones 11 by throwing the appropriate switches to the left, the resistances 23 being high enough to prevent interaction between the receivers. If the amplifier 10 is faulty, switch 22 is put into its upper position for direct connection with the receivers, the arrangement being such that only one receiver can be connected to the headphones at any one time.
GB604847A 1946-03-27 1947-03-03 Switching system Expired GB640157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65757846 US2470292A (en) 1946-03-27 1946-03-27 Switching system

Publications (1)

Publication Number Publication Date
GB640157A true GB640157A (en) 1950-07-12

Family

ID=24637784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB604847A Expired GB640157A (en) 1946-03-27 1947-03-03 Switching system

Country Status (3)

Country Link
US (1) US2470292A (en)
GB (1) GB640157A (en)
NL (1) NL71860C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123251A (en) * 1982-06-14 1984-01-25 Pioneer Electronic Corp Timer-controlled audio component system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054858A (en) * 1959-05-12 1962-09-18 Ar & T Electronics Inc Signal distribution arrangement for closed-circuit communications systems
JPS55150627A (en) * 1979-05-14 1980-11-22 Nec Corp Signal synthesizing circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658825A (en) * 1926-01-20 1928-02-14 Donald L Wolf Radio central-station system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123251A (en) * 1982-06-14 1984-01-25 Pioneer Electronic Corp Timer-controlled audio component system

Also Published As

Publication number Publication date
NL71860C (en) 1900-01-01
US2470292A (en) 1949-05-17

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