FR2408944B1 - TELEVISION RECEIVER CHANNEL SELECTOR - Google Patents

TELEVISION RECEIVER CHANNEL SELECTOR

Info

Publication number
FR2408944B1
FR2408944B1 FR7819988A FR7819988A FR2408944B1 FR 2408944 B1 FR2408944 B1 FR 2408944B1 FR 7819988 A FR7819988 A FR 7819988A FR 7819988 A FR7819988 A FR 7819988A FR 2408944 B1 FR2408944 B1 FR 2408944B1
Authority
FR
France
Prior art keywords
television receiver
channel selector
receiver channel
selector
television
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
FR7819988A
Other languages
French (fr)
Other versions
FR2408944A1 (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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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
Priority claimed from US05/813,202 external-priority patent/US4162451A/en
Priority claimed from US05/813,137 external-priority patent/US4162452A/en
Priority claimed from US05/813,198 external-priority patent/US4408347A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of FR2408944A1 publication Critical patent/FR2408944A1/en
Application granted granted Critical
Publication of FR2408944B1 publication Critical patent/FR2408944B1/en
Expired legal-status Critical Current

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
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1841—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator
    • H03B5/1847—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator the active element in the amplifier being a semiconductor device
    • 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
    • H03B5/326—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator being an acoustic wave device, e.g. SAW or BAW device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • H03D7/125—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes with field effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6403—Programmable filters
    • 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • 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
    • H03B5/362—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 the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14508—Polyphase SAW transducers
FR7819988A 1977-07-05 1978-07-05 TELEVISION RECEIVER CHANNEL SELECTOR Expired FR2408944B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/813,202 US4162451A (en) 1977-07-05 1977-07-05 MESFET-device surface-wave-device channel selector
US05/813,137 US4162452A (en) 1977-07-05 1977-07-05 Channel selection for a television receiver having low-gain high frequency RF-IF section
US05/813,198 US4408347A (en) 1977-07-29 1977-07-29 High-frequency channel selector having fixed bandpass filters in the RF section

Publications (2)

Publication Number Publication Date
FR2408944A1 FR2408944A1 (en) 1979-06-08
FR2408944B1 true FR2408944B1 (en) 1985-12-06

Family

ID=27420087

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819988A Expired FR2408944B1 (en) 1977-07-05 1978-07-05 TELEVISION RECEIVER CHANNEL SELECTOR

Country Status (7)

Country Link
JP (1) JPS5418208A (en)
BR (1) BR7804326A (en)
CA (1) CA1110356A (en)
DE (1) DE2829538A1 (en)
FR (1) FR2408944B1 (en)
GB (1) GB2000926B (en)
NL (1) NL7807307A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5776935A (en) * 1980-10-29 1982-05-14 Matsushita Electric Ind Co Ltd Tuner
JPS587934A (en) * 1981-07-07 1983-01-17 Matsushita Electric Ind Co Ltd Channel converter device
US4408348A (en) * 1981-08-19 1983-10-04 Rca Corporation Multiband tuning system for a television receiver
US4397037A (en) * 1981-08-19 1983-08-02 Rca Corporation Diplexer for television tuning systems
JPS58179005A (en) * 1982-04-14 1983-10-20 Toshiba Corp Converter device
DE3821715A1 (en) * 1988-06-28 1990-01-04 Telefunken Electronic Gmbh INPUT CIRCUIT OF A TELEVISION TUNER
DE3821716A1 (en) * 1988-06-28 1990-01-04 Telefunken Electronic Gmbh TELEVISION TUNER WITH A BAND FILTER CIRCUIT
JP2685537B2 (en) * 1988-10-03 1997-12-03 株式会社日立製作所 Surface acoustic wave device, manufacturing method thereof, adjusting method thereof, and communication device using the same
US5175711A (en) * 1988-10-03 1992-12-29 Hitachi, Ltd. Surface acoustic wave apparatus and method of productivity and adjustment of the same
DE4228834A1 (en) * 1992-08-29 1994-03-03 Thomson Brandt Gmbh Oscillating signal generating stage e.g. PLL balancing method - superimposing signal on oscillator control signal causing control signal value to correspond to neutral value
DE4332161A1 (en) * 1993-09-22 1995-03-23 Thomson Brandt Gmbh Radio frequency receiver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142631B (en) * 1959-07-15 1963-01-24 Loewe Opta Ag Television receiving circuit
US3686518A (en) * 1970-09-02 1972-08-22 Clinton S Hartmann Unidirectional surface wave transducers
US3787612A (en) * 1972-07-03 1974-01-22 Zenith Radio Corp Signal processing system for television receiver having acoustic surface wave devices for improved tuning and video demodulation
DE2334570B1 (en) * 1973-07-07 1975-03-06 Philips Patentverwaltung Tunable radio frequency input circuitry for a television receiver
US3946342A (en) * 1973-08-10 1976-03-23 Texas Instruments Incorporated Weighting surface wave filters by withdrawing electrodes
GB1440950A (en) * 1973-10-12 1976-06-30 Mullard Ltd Acoustic surface-wave devices
FR2263635A1 (en) * 1974-03-05 1975-10-03 Oak Holland Bv High stability frequency converter - uses three mixing circuits and a quartz controlled pilot oscillator
US3942120A (en) * 1974-07-22 1976-03-02 Texas Instruments Incorporated SWD FM receiver circuit
US3946338A (en) * 1975-06-09 1976-03-23 Bell Telephone Laboratories, Incorporated Acoustic wave devices involving perturbation of acoustic velocity by diffusion of metals

Also Published As

Publication number Publication date
CA1110356A (en) 1981-10-06
DE2829538A1 (en) 1979-01-25
GB2000926A (en) 1979-01-17
FR2408944A1 (en) 1979-06-08
GB2000926B (en) 1982-04-28
JPH0121648B2 (en) 1989-04-21
BR7804326A (en) 1979-04-03
JPS5418208A (en) 1979-02-10
NL7807307A (en) 1979-01-09

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