IT1134615B - Trasduttore ad onda acustica di superficie per registrazione e riproduzione - Google Patents

Trasduttore ad onda acustica di superficie per registrazione e riproduzione

Info

Publication number
IT1134615B
IT1134615B IT26486/80A IT2648680A IT1134615B IT 1134615 B IT1134615 B IT 1134615B IT 26486/80 A IT26486/80 A IT 26486/80A IT 2648680 A IT2648680 A IT 2648680A IT 1134615 B IT1134615 B IT 1134615B
Authority
IT
Italy
Prior art keywords
reproduction
recording
acoustic wave
surface acoustic
wave transducer
Prior art date
Application number
IT26486/80A
Other languages
English (en)
Other versions
IT8026486A0 (it
Inventor
Tosima Soitoro
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 IT8026486A0 publication Critical patent/IT8026486A0/it
Application granted granted Critical
Publication of IT1134615B publication Critical patent/IT1134615B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/36—Devices for manipulating acoustic surface waves
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/16—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
IT26486/80A 1979-12-14 1980-12-05 Trasduttore ad onda acustica di superficie per registrazione e riproduzione IT1134615B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/103,444 US4281407A (en) 1979-12-14 1979-12-14 Surface acoustic wave pickup and recording device

Publications (2)

Publication Number Publication Date
IT8026486A0 IT8026486A0 (it) 1980-12-05
IT1134615B true IT1134615B (it) 1986-08-13

Family

ID=22295214

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26486/80A IT1134615B (it) 1979-12-14 1980-12-05 Trasduttore ad onda acustica di superficie per registrazione e riproduzione

Country Status (6)

Country Link
US (1) US4281407A (it)
JP (1) JPS5693128A (it)
DE (1) DE3046903A1 (it)
FR (1) FR2472244A1 (it)
GB (1) GB2065954A (it)
IT (1) IT1134615B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453242A (en) * 1982-07-13 1984-06-05 Rca Corporation Surface acoustic wave cutterhead for disc recording having a circular transducer
US4477892A (en) * 1982-07-13 1984-10-16 Rca Corporation Surface acoustic wave device having a pyramid shaped tip for recording video information on a substrate
DE3527606C1 (de) * 1985-08-01 1986-07-10 TELDEC Schallplatten GmbH, 2000 Hamburg Verfahren zur Aufzeichnung eines Informationssignals und Einrichtung zur Durchfuehrung des Verfahrens
US4767198A (en) * 1987-06-24 1988-08-30 Unisys Corporation SAW/BAW Bragg cell
US5481184A (en) * 1991-12-31 1996-01-02 Sarcos Group Movement actuator/sensor systems
US5576589A (en) * 1994-10-13 1996-11-19 Kobe Steel Usa, Inc. Diamond surface acoustic wave devices
FR2755225B1 (fr) * 1996-10-28 1999-04-02 Jean Pierre Nikolovski Dispositif de controle dimensionnel sans contact ultrasonore
US6776176B1 (en) * 2000-05-26 2004-08-17 Terastor Corporation Applications of acoustic waves in data storage devices
US7893602B1 (en) * 2008-12-04 2011-02-22 The United States of America as reprensented by the Administrator of the National Aeronautics and Space Administration Dual-use transducer for use with a boundary-stiffened panel and method of using the same
US9310923B2 (en) 2010-12-03 2016-04-12 Apple Inc. Input device for touch sensitive devices
US8638320B2 (en) * 2011-06-22 2014-01-28 Apple Inc. Stylus orientation detection
US9329703B2 (en) 2011-06-22 2016-05-03 Apple Inc. Intelligent stylus
US8928635B2 (en) * 2011-06-22 2015-01-06 Apple Inc. Active stylus
US9557845B2 (en) 2012-07-27 2017-01-31 Apple Inc. Input device for and method of communication with capacitive devices through frequency variation
US9176604B2 (en) 2012-07-27 2015-11-03 Apple Inc. Stylus device
US9652090B2 (en) 2012-07-27 2017-05-16 Apple Inc. Device for digital communication through capacitive coupling
US10048775B2 (en) 2013-03-14 2018-08-14 Apple Inc. Stylus detection and demodulation
US9939935B2 (en) 2013-07-31 2018-04-10 Apple Inc. Scan engine for touch controller architecture
US10067618B2 (en) 2014-12-04 2018-09-04 Apple Inc. Coarse scan and targeted active mode scan for touch
US10474277B2 (en) 2016-05-31 2019-11-12 Apple Inc. Position-based stylus communication

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369199A (en) * 1964-12-18 1968-02-13 Bell Telephone Labor Inc Dispersive delay line
FR1447365A (fr) * 1965-06-16 1966-07-29 Csf Dispositif d'excitation pour ondes de surface
US3529465A (en) * 1968-02-23 1970-09-22 Claus Kleesattel Fatigue testing and apparatus therefor
US3946256A (en) * 1971-12-10 1976-03-23 Iowa State University Research Foundation, Inc. System for generating or sensing transverse elastic bulk waves in solids
GB1439594A (en) * 1972-04-19 1976-06-16 Rca Corp Cutterhead assembly for signal recording
US3824352A (en) * 1973-04-30 1974-07-16 Zenith Radio Corp Stacked piezoelectric transducer acting as quarter-wave resonator for recording video information
US3974464A (en) * 1974-03-15 1976-08-10 Texas Instruments Incorporated Acoustic ridge waveguide
US4037253A (en) * 1974-06-11 1977-07-19 Matsushita Electric Industrial Co., Ltd. Pressure sensitive signal reproducing system for a videodisc
US3975698A (en) * 1974-08-08 1976-08-17 The United States Of America As Represented By The Secretary Of The Army Fiber acoustic waveguide and system
GB1541567A (en) * 1975-05-23 1979-03-07 Ti Group Services Ltd Surface acoustic wave transducers
US4011747A (en) * 1975-06-20 1977-03-15 The Board Of Trustees Of The Leland Stanford University Method and apparatus for acoustic scanning using waves scattered by an acoustic grating

Also Published As

Publication number Publication date
JPS5693128A (en) 1981-07-28
US4281407A (en) 1981-07-28
IT8026486A0 (it) 1980-12-05
GB2065954A (en) 1981-07-01
FR2472244A1 (fr) 1981-06-26
DE3046903A1 (de) 1981-09-03

Similar Documents

Publication Publication Date Title
IT1134615B (it) Trasduttore ad onda acustica di superficie per registrazione e riproduzione
IT1125928B (it) Struttura perfezionata per sensore di pressione ad onda acustica superficiale
ES492684A0 (es) Un dispositivo transductor acustico
JPS56137263A (en) Ultrasonic echo sounding probe having acoustic lens and echo sounder using it
IT1132256B (it) Trasduttore di ultrasuoni
IT1115327B (it) Trasduttore perfezionata per dischi di registrazione magnetici
DK238579A (da) Klokketone-lydsystem med piezoelektrisk transducer
NO833195L (no) Sensor basert paa akustiske overflateboelger
IT1135564B (it) Trasduttore acustico
FR2552291B1 (fr) Transducteur acoustique directionnel
FR2472899B1 (fr) Transducteur electro-acoustique
DE3068075D1 (en) Surface acoustic wave transducer
ES496947A0 (es) Un transductor electroacustico
IT1146062B (it) Trasduttore sonoro elettrodinamico in particolare per prove non di struttuve ad ultrasuoni su materiali
IT1086574B (it) Trasduttore acustico elettrodinamico
DK432985D0 (da) Sammensat ultralydskandering med roterende transducer
GB2096860B (en) Piezoelectric sound transducer
IT1139201B (it) Filtro ad onde acustiche di superficie
AU518464B2 (en) Acoustic surface wave transducer
IT1132624B (it) Dispositivo per determinare l'istante di ricezione di un'onda acustica
BR8005981A (pt) Transdutor piezoeletrico
IT1186147B (it) Trasduttore elettrodinamico per la generazione di onde ultrasonore
IT1110419B (it) Apparecchiatura per migliorare la riproduzione acustica di dischi grammofonici
BR8005910A (pt) Transdutores eletroacusticos
FR2290816A1 (fr) Transducteur piezoelectrique permettant d'emettre et de recevoir des ondes ultrasonores