CA2019540A1 - Ribbon transducers - Google Patents

Ribbon transducers

Info

Publication number
CA2019540A1
CA2019540A1 CA2019540A CA2019540A CA2019540A1 CA 2019540 A1 CA2019540 A1 CA 2019540A1 CA 2019540 A CA2019540 A CA 2019540A CA 2019540 A CA2019540 A CA 2019540A CA 2019540 A1 CA2019540 A1 CA 2019540A1
Authority
CA
Canada
Prior art keywords
ribbon
suspension elements
cross
ribbon transducers
transducers
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.)
Granted
Application number
CA2019540A
Other languages
French (fr)
Other versions
CA2019540C (en
Inventor
Graham Bank
Harold C. Pinfold
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.)
CELESTION INTERNATIONAL Ltd
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
Application filed by Individual filed Critical Individual
Publication of CA2019540A1 publication Critical patent/CA2019540A1/en
Application granted granted Critical
Publication of CA2019540C publication Critical patent/CA2019540C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Glass Compositions (AREA)
  • Surgical Instruments (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Dry Shavers And Clippers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Radiation (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

A ribbon transducer has its ribbon (10) which is held at each end made capable of lateral movement for adjustment purposes by providing a plurality of traverse cross-suspension elements (12) to which the ribbon is secured, with each of these cross-suspension elements being capable of transverse displacement, for example by rotation of mounting pillars (14a, 14b).
CA002019540A 1989-06-21 1990-06-21 Ribbon transducers Expired - Fee Related CA2019540C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8914241.8 1989-06-21
GB898914241A GB8914241D0 (en) 1989-06-21 1989-06-21 Ribbon transducers

Publications (2)

Publication Number Publication Date
CA2019540A1 true CA2019540A1 (en) 1990-12-21
CA2019540C CA2019540C (en) 1995-07-18

Family

ID=10658810

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002019540A Expired - Fee Related CA2019540C (en) 1989-06-21 1990-06-21 Ribbon transducers

Country Status (8)

Country Link
EP (1) EP0404488B1 (en)
JP (1) JP2523949B2 (en)
AT (1) ATE110514T1 (en)
CA (1) CA2019540C (en)
DE (1) DE69011763T2 (en)
DK (1) DK0404488T3 (en)
ES (1) ES2062370T3 (en)
GB (1) GB8914241D0 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793261A (en) * 1955-06-13 1958-04-16 Reslosound Ltd Improvements in and relating to electromechanical transducers
US4317966A (en) * 1980-02-19 1982-03-02 Lister Clive R B Vibratory ribbon speaker
US4580014A (en) * 1983-06-21 1986-04-01 Hobrough Theodore B Means for controlling ribbon edge clearance in a ribbon loudspeaker

Also Published As

Publication number Publication date
EP0404488A2 (en) 1990-12-27
CA2019540C (en) 1995-07-18
DE69011763T2 (en) 1995-03-16
JPH03129999A (en) 1991-06-03
DK0404488T3 (en) 1995-01-16
EP0404488B1 (en) 1994-08-24
ATE110514T1 (en) 1994-09-15
ES2062370T3 (en) 1994-12-16
EP0404488A3 (en) 1992-04-15
JP2523949B2 (en) 1996-08-14
DE69011763D1 (en) 1994-09-29
GB8914241D0 (en) 1989-08-09

Similar Documents

Publication Publication Date Title
FI871206A0 (en) 2-AZOLYLMETHYL-2-ARYL-1,3-DIOXOLANER WITH A FRAME SALTER, FOERFARANDEN FOR A FRAMSTAELLNING, DESSA INNEHAOLLANDE MEDEL OCH DERAS ANVAENDNING.
PT81125B (en) PROCESS FOR THE PREPARATION OF MACROLID COMPOUNDS BY FERMENTATION OF STREPTOMYCES ORGANISMS
AU530347B2 (en) Ribbon feed for a typewriter
IT8621625A0 (en) DEVICE FOR THE COMPENSATION OF VIBRATIONS DUE TO ROTATION.
AU631848B2 (en) Non-migrating 1-hydrocarbyloxy hindered amine compounds as polymer stabilizers
EP0433897A3 (en) Process for preparing an optically active cyclobutane nucleoside
AU533209B2 (en) Ribbon feed for a typewriter
IT8622756A0 (en) DEVICE FOR THE COMPENSATION OF VIBRATIONS DUE TO ROTATION.
CA2019540A1 (en) Ribbon transducers
DE68913869D1 (en) Acceleration control for a printhead assembly.
IT8722837A0 (en) DEVICE FOR ADJUSTING THE HEIGHT OF A CONTROL SLIDER ON A SPINNING FRAME.
USD298057S (en) Structural column for an exercising apparatus
IE780456L (en) Prostaglandins.
IT1235963B (en) DEVICE FOR THE CONTROL OF THE STRUCTURE OF A TOOL PULLED BY AN AGRICULTURAL MACHINE
AU6120586A (en) Velocity sensor with drift compensation
GB8919437D0 (en) A device for a control of metabolism by measurement and-if desired-injection,especially of the diabetes
AU7535387A (en) Adjusting the position of a transducer head
PT86712A (en) PROCESS FOR PREPARING P-XYLENE HAVING A PURITY OF AT LEAST 99.5%
GB8914283D0 (en) Ribbon transducers
AU579693B2 (en) Novel substituted isoxazolines as precursors for substituted furans
HK157996A (en) Process for the production of bissilylated 3-iodomethylcephalosporine derivatives
DE3062635D1 (en) A process for preparing 3-(3,5-di-tert. alkyl-4-hydroxyphenyl)-2,2-di substituted prionaldehydes
IT1231802B (en) PROCEDURE FOR MEASURING A PHYSICAL SIZE BY MEANS OF AN OPTICAL SENSOR, AS WELL AS EQUIPMENT FOR THE EXECUTION OF THE PROCEDURE
IT8904953V0 (en) DEVICE FOR THE CONTROL OF A SPEED CHANGE FOR A VEHICLE, PARTICULARLY AN AGRICULTURAL TRACTOR
林行夫 [16-4] Event Calendar

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed