GB2425007B - Tuning control arrangement - Google Patents

Tuning control arrangement

Info

Publication number
GB2425007B
GB2425007B GB0521100A GB0521100A GB2425007B GB 2425007 B GB2425007 B GB 2425007B GB 0521100 A GB0521100 A GB 0521100A GB 0521100 A GB0521100 A GB 0521100A GB 2425007 B GB2425007 B GB 2425007B
Authority
GB
United Kingdom
Prior art keywords
control arrangement
tuning control
tuning
arrangement
control
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 - Fee Related
Application number
GB0521100A
Other versions
GB0521100D0 (en
GB2425007A (en
Inventor
George Hedley Storm Rokos
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB0420909A external-priority patent/GB0420909D0/en
Priority claimed from GBGB0506887.9A external-priority patent/GB0506887D0/en
Application filed by Individual filed Critical Individual
Publication of GB0521100D0 publication Critical patent/GB0521100D0/en
Publication of GB2425007A publication Critical patent/GB2425007A/en
Application granted granted Critical
Publication of GB2425007B publication Critical patent/GB2425007B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03B5/02—Details
    • H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1228—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more field effect transistors
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/04—Arrangements for compensating for variations of physical values, e.g. temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
GB0521100A 2004-09-20 2005-10-17 Tuning control arrangement Expired - Fee Related GB2425007B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0420909A GB0420909D0 (en) 2004-09-20 2004-09-20 Improvement to tuning control
GBGB0506887.9A GB0506887D0 (en) 2005-04-05 2005-04-05 Improvement to tuning control

Publications (3)

Publication Number Publication Date
GB0521100D0 GB0521100D0 (en) 2005-11-23
GB2425007A GB2425007A (en) 2006-10-11
GB2425007B true GB2425007B (en) 2010-11-17

Family

ID=35456882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0521100A Expired - Fee Related GB2425007B (en) 2004-09-20 2005-10-17 Tuning control arrangement

Country Status (1)

Country Link
GB (1) GB2425007B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639827A (en) * 1970-08-26 1972-02-01 Int Standard Electric Corp Circuit arrangement for forming a variable reactive impedance
US5216392A (en) * 1991-07-05 1993-06-01 Motorola, Inc. Automatically controlled varactor tuned matching networks for a crystal filter
US5739730A (en) * 1995-12-22 1998-04-14 Microtune, Inc. Voltage controlled oscillator band switching technique
GB2339984A (en) * 1998-07-24 2000-02-09 Nec Technologies Multi-band voltage controlled oscillator
GB2363923A (en) * 2000-06-20 2002-01-09 Lucent Technologies Inc Variable capacitance circuit
EP1437829A1 (en) * 2003-01-09 2004-07-14 Phonak Communications Ag Method and integrated circuit for tuning an LC resonator and electrical apparatus comprising an LC resonator
US6825785B1 (en) * 2002-02-28 2004-11-30 Silicon Laboratories, Inc. Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling a sub-varactor array of a voltage controlled oscillator
GB2408400A (en) * 2003-11-24 2005-05-25 Zarlink Semiconductor Ltd A varactor circuit with a linearised capacitance vs. control voltage characteristic
GB2411061A (en) * 2004-02-12 2005-08-17 Zarlink Semiconductor Ab Variable capacitor modulator VCO

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639827A (en) * 1970-08-26 1972-02-01 Int Standard Electric Corp Circuit arrangement for forming a variable reactive impedance
US5216392A (en) * 1991-07-05 1993-06-01 Motorola, Inc. Automatically controlled varactor tuned matching networks for a crystal filter
US5739730A (en) * 1995-12-22 1998-04-14 Microtune, Inc. Voltage controlled oscillator band switching technique
GB2339984A (en) * 1998-07-24 2000-02-09 Nec Technologies Multi-band voltage controlled oscillator
GB2363923A (en) * 2000-06-20 2002-01-09 Lucent Technologies Inc Variable capacitance circuit
US6825785B1 (en) * 2002-02-28 2004-11-30 Silicon Laboratories, Inc. Digital expander apparatus and method for generating multiple analog control signals particularly useful for controlling a sub-varactor array of a voltage controlled oscillator
EP1437829A1 (en) * 2003-01-09 2004-07-14 Phonak Communications Ag Method and integrated circuit for tuning an LC resonator and electrical apparatus comprising an LC resonator
GB2408400A (en) * 2003-11-24 2005-05-25 Zarlink Semiconductor Ltd A varactor circuit with a linearised capacitance vs. control voltage characteristic
GB2411061A (en) * 2004-02-12 2005-08-17 Zarlink Semiconductor Ab Variable capacitor modulator VCO

Also Published As

Publication number Publication date
GB0521100D0 (en) 2005-11-23
GB2425007A (en) 2006-10-11

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