GB2039438B - Tunable oscillator - Google Patents

Tunable oscillator

Info

Publication number
GB2039438B
GB2039438B GB7901248A GB7901248A GB2039438B GB 2039438 B GB2039438 B GB 2039438B GB 7901248 A GB7901248 A GB 7901248A GB 7901248 A GB7901248 A GB 7901248A GB 2039438 B GB2039438 B GB 2039438B
Authority
GB
United Kingdom
Prior art keywords
tunable oscillator
tunable
oscillator
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
GB7901248A
Other versions
GB2039438A (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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB7901248A priority Critical patent/GB2039438B/en
Publication of GB2039438A publication Critical patent/GB2039438A/en
Application granted granted Critical
Publication of GB2039438B publication Critical patent/GB2039438B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
GB7901248A 1979-01-12 1979-01-12 Tunable oscillator Expired GB2039438B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7901248A GB2039438B (en) 1979-01-12 1979-01-12 Tunable oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7901248A GB2039438B (en) 1979-01-12 1979-01-12 Tunable oscillator

Publications (2)

Publication Number Publication Date
GB2039438A GB2039438A (en) 1980-08-06
GB2039438B true GB2039438B (en) 1983-03-02

Family

ID=10502497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7901248A Expired GB2039438B (en) 1979-01-12 1979-01-12 Tunable oscillator

Country Status (1)

Country Link
GB (1) GB2039438B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152312B (en) * 1983-11-01 1987-04-23 Motorola Inc Oscillator circuit
FR2758919B1 (en) * 1997-01-24 1999-04-16 Sgs Thomson Microelectronics FREQUENCY MODULATION CIRCUIT OF A QUARTZ OSCILLATOR
DE19940137A1 (en) * 1999-08-24 2001-03-01 Philips Corp Intellectual Pty Series-resonant converter with a control circuit
US6768389B2 (en) 2002-09-23 2004-07-27 Ericsson Inc. Integrated, digitally-controlled crystal oscillator

Also Published As

Publication number Publication date
GB2039438A (en) 1980-08-06

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960112