GB2039438B - Tunable oscillator - Google Patents

Tunable oscillator

Info

Publication number: GB2039438B
Authority: GB; United Kingdom
Prior art keywords: tunable oscillator; tunable; oscillator
Prior art date: 1979-01-12
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.)

GE Healthcare UK Ltd

Original Assignee

GE Healthcare UK 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.)

1979-01-12

Filing date

1979-01-12

Publication date

1983-03-02

1979-01-12 Application filed by GE Healthcare UK Ltd filed Critical GE Healthcare UK Ltd

1979-01-12 Priority to GB7901248A priority Critical patent/GB2039438B/en

1980-08-06 Publication of GB2039438A publication Critical patent/GB2039438A/en

1983-03-02 Application granted granted Critical

1983-03-02 Publication of GB2039438B publication Critical patent/GB2039438B/en

Status Expired legal-status Critical Current

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

1979
- 1979-01-12 GB GB7901248A patent/GB2039438B/en not_active Expired

Also Published As

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

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Legal Events

Date	Code	Title	Description
1981-01-21	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1992-09-09	732	Registration of transactions, instruments or events in the register (sect. 32/1977)
1996-09-04	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19960112