GB1280032A - Variable electrical delay device - Google Patents

Variable electrical delay device

Info

Publication number
GB1280032A
GB1280032A GB3612369A GB3612369A GB1280032A GB 1280032 A GB1280032 A GB 1280032A GB 3612369 A GB3612369 A GB 3612369A GB 3612369 A GB3612369 A GB 3612369A GB 1280032 A GB1280032 A GB 1280032A
Authority
GB
United Kingdom
Prior art keywords
input signal
dependent
signal
july
delay
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
GB3612369A
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.)
PRES Inc
Leidos Holding Inc
Original Assignee
PRES Inc
Presearch 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 PRES Inc, Presearch Inc filed Critical PRES Inc
Publication of GB1280032A publication Critical patent/GB1280032A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/26—Time-delay networks
    • H03H11/265—Time-delay networks with adjustable delay

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

1280032 Signal delaying amplifiers PRESEARCH Inc 17 July 1969 [31 July 1968] 36123/69 Heading H3T A device for delaying a wide band-width input signal comprises a phase inverter TR1, a resistance element R and a reactance element C connected in series across said phase inverter TR1, said elements being arranged to produce a limited shift that is substantially proportional to the frequency of the input signal and means for varying the magnitude of one of the elements in response to a control signal so as to vary the delay of the input signal. The specification shows that if the phase shift is limited to approximately 12 degrees, the phase shift is proportional to frequency and the delayed signal is a substantial replica of the input signal. Resistance R may be a cadmium sulphide photocell. Alternatively, the delay may be varied by means of a voltage-dependent, heat-dependent or pressure-dependent resistor or capacitor. The transistors may be replaced by vacuum tubes, field effect transistors or transformers.
GB3612369A 1968-07-31 1969-07-17 Variable electrical delay device Expired GB1280032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74899268A 1968-07-31 1968-07-31

Publications (1)

Publication Number Publication Date
GB1280032A true GB1280032A (en) 1972-07-05

Family

ID=25011768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3612369A Expired GB1280032A (en) 1968-07-31 1969-07-17 Variable electrical delay device

Country Status (4)

Country Link
DE (1) DE1938789A1 (en)
FR (1) FR2014099A1 (en)
GB (1) GB1280032A (en)
NL (1) NL6911035A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596513A (en) * 1985-01-10 1986-06-24 United Technologies Corporation Helicopter air-spring vibration absorber
WO2023104759A1 (en) 2021-12-07 2023-06-15 Compagnie Generale Des Etablissements Michelin Process and system for controlling a gripping device used in cycles for sorting tires arranged in unknown arrangements

Also Published As

Publication number Publication date
FR2014099A1 (en) 1970-04-10
DE1938789A1 (en) 1970-02-05
NL6911035A (en) 1970-02-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees