FR2578124B1 - Circuit d'accord pour un tuner a plusieurs bandes - Google Patents
Circuit d'accord pour un tuner a plusieurs bandesInfo
- Publication number
- FR2578124B1 FR2578124B1 FR868602732A FR8602732A FR2578124B1 FR 2578124 B1 FR2578124 B1 FR 2578124B1 FR 868602732 A FR868602732 A FR 868602732A FR 8602732 A FR8602732 A FR 8602732A FR 2578124 B1 FR2578124 B1 FR 2578124B1
- Authority
- FR
- France
- Prior art keywords
- tuner
- channel
- band
- band tuner
- tuner channel
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
-
- 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
-
- 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
- H03B5/1203—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 being a single transistor
-
- 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
- H03B5/1231—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 bipolar 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
- H03B5/08—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
- H03B5/1237—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 comprising means for varying the frequency of the generator
- H03B5/124—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 comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—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 comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or transistor
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0048—Circuit elements of oscillators including measures to switch the frequency band, e.g. by harmonic selection
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0056—Circuit elements of oscillators including a diode used for switching
-
- 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
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/705,500 US4598423A (en) | 1985-02-28 | 1985-02-28 | Tuning circuit for a multiband tuner |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2578124A1 FR2578124A1 (fr) | 1986-08-29 |
FR2578124B1 true FR2578124B1 (fr) | 1990-03-16 |
Family
ID=24833752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR868602732A Expired - Fee Related FR2578124B1 (fr) | 1985-02-28 | 1986-02-27 | Circuit d'accord pour un tuner a plusieurs bandes |
Country Status (9)
Country | Link |
---|---|
US (1) | US4598423A (fr) |
JP (1) | JPS61212110A (fr) |
KR (1) | KR940005381B1 (fr) |
CA (1) | CA1239234A (fr) |
DE (1) | DE3606435A1 (fr) |
FR (1) | FR2578124B1 (fr) |
GB (1) | GB2171867B (fr) |
HK (1) | HK19694A (fr) |
SG (1) | SG10092G (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2196197B (en) * | 1986-10-01 | 1990-09-19 | Telefunken Electronic Gmbh | Television tuner |
FR2612017A1 (fr) * | 1987-03-03 | 1988-09-09 | Aerospatiale | Oscillateur a circuit accorde reglable dans une large gamme de frequence |
FR2644647B1 (fr) * | 1989-03-15 | 1991-05-24 | Alcatel Transmission | Oscillateur hyperfrequence commande en tension |
DE3937934A1 (de) * | 1989-11-15 | 1991-05-16 | Thomson Brandt Gmbh | Schaltungsanordnung zur durchschaltung von hf-signalen |
DE4006018A1 (de) * | 1990-02-26 | 1991-08-29 | Thomson Brandt Gmbh | Schaltungsanordnung zur erzeugung einer sperrspannung fuer schaltdioden |
US5428828A (en) * | 1992-08-28 | 1995-06-27 | Thomson Consumer Electronics, Inc. | Television receiver tuning circuit |
US8539528B2 (en) * | 1995-04-17 | 2013-09-17 | Starsight Telecast, Inc. | Multi-source switching in a television system |
US5550576A (en) * | 1995-04-17 | 1996-08-27 | Starsight Telecast Incorporated | Method and apparatus for merging television program schedule information received from multiple television schedule information sources |
US5892410A (en) * | 1997-02-19 | 1999-04-06 | Motorola, Inc. | Method and apparatus for transmitting radio frequency signals |
JPH10270937A (ja) * | 1997-03-27 | 1998-10-09 | Murata Mfg Co Ltd | 電圧制御発振器 |
US6218909B1 (en) * | 1998-10-23 | 2001-04-17 | Texas Insturments Israel Ltd. | Multiple frequency band voltage controlled oscillator |
US6194976B1 (en) * | 1999-03-29 | 2001-02-27 | Qualcomm Incorporated | Multiple band voltage controlled oscillator using impedance scaling |
JP3548819B2 (ja) * | 1999-10-29 | 2004-07-28 | 株式会社村田製作所 | 周波数切替型発振器及びそれを用いた電子機器 |
JP2001144535A (ja) * | 1999-11-16 | 2001-05-25 | Tdk Corp | マルチバンド型電圧制御発振器 |
US6504443B1 (en) | 2000-05-17 | 2003-01-07 | Nec America, Inc., | Common anode varactor tuned LC circuit |
WO2003034715A2 (fr) * | 2001-10-16 | 2003-04-24 | Rfstream Corporation | Procedes et appareil destines a mettre en oeuvre un recepteur sur un circuit integre monolithique |
US7199844B2 (en) * | 2002-05-28 | 2007-04-03 | Rfstream Corporation | Quadratic nyquist slope filter |
JP2005536080A (ja) * | 2002-05-29 | 2005-11-24 | 株式会社RfStream | 画像除去2次フィルタ |
WO2003103143A1 (fr) * | 2002-05-29 | 2003-12-11 | Ukom, Inc. | Procede et appareil d'accordage par approximations successives |
US6882245B2 (en) * | 2002-06-05 | 2005-04-19 | Rf Stream Corporation | Frequency discrete LC filter bank |
WO2003105464A2 (fr) * | 2002-06-05 | 2003-12-18 | Ukom, Inc. | Demodulation video quadratique a filtre de nyquist passe-bas |
US6940365B2 (en) * | 2003-07-18 | 2005-09-06 | Rfstream Corporation | Methods and apparatus for an improved discrete LC filter |
US7358795B2 (en) * | 2005-03-11 | 2008-04-15 | Rfstream Corporation | MOSFET temperature compensation current source |
JP2008533839A (ja) * | 2005-03-11 | 2008-08-21 | 株式会社RfStream | 広帯域同調回路 |
US7446631B2 (en) * | 2005-03-11 | 2008-11-04 | Rf Stream Corporation | Radio frequency inductive-capacitive filter circuit topology |
KR101147250B1 (ko) * | 2006-01-27 | 2012-05-18 | 삼성전자주식회사 | 적응적으로 펄스 폭 변조 신호를 복조하는 복조기 및 복조방법 |
US20090172544A1 (en) * | 2007-12-31 | 2009-07-02 | United Video Properties, Inc. | Interactive media guidance application with access to multiple data sets |
US20090172736A1 (en) * | 2007-12-31 | 2009-07-02 | United Video Properties, Inc. | Interactive media guidance application with access to multiple data paths |
ITMI20091685A1 (it) * | 2009-09-30 | 2011-04-01 | Siae Microelettronica Spa | Circuito risonante per oscillatori a microonde e oscillatore dotato di tale circuito risonante |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3264566A (en) * | 1962-07-13 | 1966-08-02 | Gen Instrument Corp | Electronic switching of tuned circuits |
GB1181386A (en) * | 1966-05-06 | 1970-02-18 | Orega Electro Mecanique | Improvements in or relating to UHF-VHF selector circuits |
DE2503785C3 (de) * | 1975-01-30 | 1984-07-12 | Telefunken electronic GmbH, 7100 Heilbronn | Kombituner für die Frequenzbereiche UHF und VHF |
JPS6046895B2 (ja) * | 1978-08-04 | 1985-10-18 | アルプス電気株式会社 | 電子同調チユ−ナ |
US4363135A (en) * | 1980-10-27 | 1982-12-07 | Zenith Radio Corporation | Four band VHF varactor tuner |
US4404686A (en) * | 1980-12-01 | 1983-09-13 | Zenith Radio Corporation | Four band VHF varactor tuner to cover extended CATV band utilizing two switching diodes per resonant circuit |
US4380827A (en) * | 1981-09-21 | 1983-04-19 | Zenith Radio Corporation | Oscillator for television tuner |
US4418427A (en) * | 1982-03-30 | 1983-11-29 | Rca Corporation | Tuning system for a multi-band television receiver |
FI75962C (fi) * | 1982-03-30 | 1988-08-08 | Rca Corp | Avstaemningssystem foer en flerbandig televisionsmottagare. |
DE3321262A1 (de) * | 1983-06-11 | 1984-12-13 | Telefunken electronic GmbH, 7100 Heilbronn | Abstimmschaltung fuer die bereiche uhf- und vhf |
-
1985
- 1985-02-28 US US06/705,500 patent/US4598423A/en not_active Expired - Lifetime
- 1985-12-11 KR KR1019850009303A patent/KR940005381B1/ko not_active IP Right Cessation
-
1986
- 1986-02-13 CA CA000501786A patent/CA1239234A/fr not_active Expired
- 1986-02-27 DE DE19863606435 patent/DE3606435A1/de not_active Ceased
- 1986-02-27 JP JP61043894A patent/JPS61212110A/ja active Granted
- 1986-02-27 GB GB08604833A patent/GB2171867B/en not_active Expired
- 1986-02-27 FR FR868602732A patent/FR2578124B1/fr not_active Expired - Fee Related
-
1992
- 1992-02-03 SG SG100/92A patent/SG10092G/en unknown
-
1994
- 1994-03-10 HK HK196/94A patent/HK19694A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE3606435A1 (de) | 1986-08-28 |
CA1239234A (fr) | 1988-07-12 |
US4598423A (en) | 1986-07-01 |
KR940005381B1 (ko) | 1994-06-17 |
GB2171867B (en) | 1989-02-15 |
GB2171867A (en) | 1986-09-03 |
JPH0348688B2 (fr) | 1991-07-25 |
FR2578124A1 (fr) | 1986-08-29 |
HK19694A (en) | 1994-03-18 |
JPS61212110A (ja) | 1986-09-20 |
GB8604833D0 (en) | 1986-04-03 |
SG10092G (en) | 1992-03-20 |
KR860006871A (ko) | 1986-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |