FR2350002A1 - Agencement transducteur pour un dispositif a onde acoustique de surface pour inhiber la production de reflexions multiples - Google Patents

Agencement transducteur pour un dispositif a onde acoustique de surface pour inhiber la production de reflexions multiples

Info

Publication number
FR2350002A1
FR2350002A1 FR7712416A FR7712416A FR2350002A1 FR 2350002 A1 FR2350002 A1 FR 2350002A1 FR 7712416 A FR7712416 A FR 7712416A FR 7712416 A FR7712416 A FR 7712416A FR 2350002 A1 FR2350002 A1 FR 2350002A1
Authority
FR
France
Prior art keywords
inhibit
production
acoustic wave
surface acoustic
wave device
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.)
Withdrawn
Application number
FR7712416A
Other languages
English (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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2350002A1 publication Critical patent/FR2350002A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H03H9/0285—Means for compensation or elimination of undesirable effects of reflections of triple transit echo
    • 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
    • H03H9/14597—Matching SAW transducers to external electrical circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
FR7712416A 1976-04-26 1977-04-25 Agencement transducteur pour un dispositif a onde acoustique de surface pour inhiber la production de reflexions multiples Withdrawn FR2350002A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/680,073 US4060833A (en) 1976-04-26 1976-04-26 Transducer arrangement for a surface acoustic wave device to inhibit the generation of multiple reflection signals

Publications (1)

Publication Number Publication Date
FR2350002A1 true FR2350002A1 (fr) 1977-11-25

Family

ID=24729538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712416A Withdrawn FR2350002A1 (fr) 1976-04-26 1977-04-25 Agencement transducteur pour un dispositif a onde acoustique de surface pour inhiber la production de reflexions multiples

Country Status (7)

Country Link
US (1) US4060833A (fr)
JP (1) JPS52131441A (fr)
DE (1) DE2718572A1 (fr)
FR (1) FR2350002A1 (fr)
GB (1) GB1576451A (fr)
IT (1) IT1076054B (fr)
SE (1) SE413619B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5561126A (en) * 1978-11-01 1980-05-08 Hitachi Ltd Elastic surface wave device
JPS5610725A (en) * 1979-07-09 1981-02-03 Murata Mfg Co Ltd Elastic surface wave device
JPS5937605B2 (ja) * 1979-09-25 1984-09-11 富士通株式会社 弾性表面波素子
US4253119A (en) * 1979-09-27 1981-02-24 Zenith Radio Corporation Interface system for surface wave integratable filter
US4271433A (en) * 1979-11-23 1981-06-02 Rca Corporation SAW Filter preamplifier
EP0052655A4 (fr) * 1980-05-27 1986-01-07 Rf Monolithics Procede et dispositif de brouillage et de decodage de signaux de television.
US4403252A (en) * 1980-05-27 1983-09-06 R F Monolithics, Inc. Television scrambling and unscrambling method and apparatus
US4392116A (en) * 1980-10-14 1983-07-05 Zenith Radio Corporation Triple transit cancellation
US4604697A (en) * 1983-08-05 1986-08-05 Interspec, Inc. Body imaging using vectorial addition of acoustic reflection to achieve effect of scanning beam continuously focused in range
US4798987A (en) * 1986-08-25 1989-01-17 Canon Kabushiki Kaisha Surface acoustic wave generator
US4951146A (en) * 1989-01-17 1990-08-21 Zenith Electronics Corporation Directionally controlled dispersive filtering for reducing co-channel interference
US5196720A (en) * 1989-05-15 1993-03-23 Clarion Co., Ltd. Narrow band interference signal removing device
US5170500A (en) * 1990-08-03 1992-12-08 Goldstar Products Co., Limited Intermediate frequency circuit for cellular telephone transceiver using surface acoustic wave filter
US5268775A (en) * 1991-02-19 1993-12-07 Hughes-Jvc Technology Corporation Contrast enhancement and ghost elimination, for reflective light valve system
US5325130A (en) * 1993-03-31 1994-06-28 Westinghouse Electric Corporation Ghost canceller
US10545107B2 (en) * 2015-04-26 2020-01-28 Vayyar Imaging Ltd System, device and methods for measuring substances' dielectric properties using microwave sensors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596211A (en) * 1967-11-06 1971-07-27 Zenith Radio Corp Surface-wave filter reflection cancellation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662293A (en) * 1971-03-17 1972-05-09 Zenith Radio Corp Acoustic-wave transmitting device
US3810257A (en) * 1973-02-01 1974-05-07 Texas Instruments Inc Acoustic surface wave transducer configuration for reducing triple transit signals
US3908137A (en) * 1973-12-26 1975-09-23 Magnavox Co Apparatus and method for triple transit signal cancellation in an acoustical surface wave device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596211A (en) * 1967-11-06 1971-07-27 Zenith Radio Corp Surface-wave filter reflection cancellation

Also Published As

Publication number Publication date
SE413619B (sv) 1980-06-09
SE7704481L (sv) 1977-10-27
US4060833A (en) 1977-11-29
IT1076054B (it) 1985-04-22
JPS52131441A (en) 1977-11-04
GB1576451A (en) 1980-10-08
DE2718572A1 (de) 1977-11-03

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Legal Events

Date Code Title Description
ST Notification of lapse