GB743450A - Improvements in impedance converting devices employing transistors - Google Patents

Improvements in impedance converting devices employing transistors

Info

Publication number
GB743450A
GB743450A GB25180/53A GB2518053A GB743450A GB 743450 A GB743450 A GB 743450A GB 25180/53 A GB25180/53 A GB 25180/53A GB 2518053 A GB2518053 A GB 2518053A GB 743450 A GB743450 A GB 743450A
Authority
GB
United Kingdom
Prior art keywords
terminals
impedance
pair
circuit
alpha
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
GB25180/53A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB743450A publication Critical patent/GB743450A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/16—Control of transmission; Equalising characterised by the negative-impedance network used
    • H04B3/18—Control of transmission; Equalising characterised by the negative-impedance network used wherein the network comprises semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Details Of Television Scanning (AREA)
GB25180/53A 1952-09-17 1953-09-11 Improvements in impedance converting devices employing transistors Expired GB743450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US310084A US2726370A (en) 1952-09-17 1952-09-17 Negative impedance converters employing transistors

Publications (1)

Publication Number Publication Date
GB743450A true GB743450A (en) 1956-01-18

Family

ID=23200934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25180/53A Expired GB743450A (en) 1952-09-17 1953-09-11 Improvements in impedance converting devices employing transistors

Country Status (7)

Country Link
US (1) US2726370A ( )
BE (1) BE522796A ( )
CH (1) CH326021A ( )
DE (1) DE959561C ( )
FR (1) FR1079265A ( )
GB (1) GB743450A ( )
NL (1) NL180361B ( )

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068486B (de) * 1952-10-09 1959-11-05 International Standard Electric Corporation, N'ew York, N. Y. (V.'St.A.) Schaltungsanordnung für ein vielfach stabiles Register
US2919355A (en) * 1953-12-31 1959-12-29 Sylvania Electric Prod Bi-stable transistor circuit
BE551746A ( ) * 1955-10-14
US2852680A (en) * 1956-03-28 1958-09-16 Itt Negative-impedance transistor oscillator
US3100266A (en) * 1957-02-11 1963-08-06 Superior Electric Co Transistor discriminating circuit with diode bypass means for the emitterbase circuit of each transistor
US2998581A (en) * 1958-06-09 1961-08-29 Automatic Elect Lab Negative impedance repeaters having gain controls
US3042759A (en) * 1959-08-05 1962-07-03 Bell Telephone Labor Inc Negative impedance repeaters
GB1051283A ( ) * 1964-04-15
US3503002A (en) * 1965-07-05 1970-03-24 Cesare Valfre Transistor negative impedance amplifier,stable in short circuit,particularly for telephone systems
US3470500A (en) * 1966-11-17 1969-09-30 Automatic Elect Lab Negative resistance network
US3448411A (en) * 1967-03-23 1969-06-03 Marvin L Patterson Synthetic inductor comprising a phase-shifting network for synthesizing the inductance
US3562561A (en) * 1969-03-21 1971-02-09 Bell Telephone Labor Inc Shunt-type negative impedance converter with both short and open circuit stability
US4625186A (en) * 1985-04-22 1986-11-25 Canadian Patents And Development Limited Two-terminal negative admittance network
US8022779B2 (en) * 2009-06-09 2011-09-20 Georgia Tech Research Corporation Integrated circuit oscillators having microelectromechanical resonators therein with parasitic impedance cancellation
US9960484B2 (en) 2012-06-12 2018-05-01 The United States Of America As Represented By Secretary Of The Navy Non-foster active impedance circuit for electrically small antennas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569347A (en) * 1948-06-26 1951-09-25 Bell Telephone Labor Inc Circuit element utilizing semiconductive material
BE497800A ( ) * 1949-08-30

Also Published As

Publication number Publication date
CH326021A (fr) 1957-11-30
US2726370A (en) 1955-12-06
NL180361B (nl)
BE522796A ( )
DE959561C (de) 1957-03-07
FR1079265A (fr) 1954-11-29

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