CA976882A - Acoustical impedance matching device for a high impedance transducer - Google Patents

Acoustical impedance matching device for a high impedance transducer

Info

Publication number
CA976882A
CA976882A CA173,324A CA173324A CA976882A CA 976882 A CA976882 A CA 976882A CA 173324 A CA173324 A CA 173324A CA 976882 A CA976882 A CA 976882A
Authority
CA
Canada
Prior art keywords
matching device
acoustical
transducer
impedance matching
high impedance
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
CA173,324A
Other versions
CA173324S (en
Inventor
Royce L. Payne
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA976882A publication Critical patent/CA976882A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S181/00—Acoustics
    • Y10S181/40—Wave coupling
CA173,324A 1972-06-28 1973-06-06 Acoustical impedance matching device for a high impedance transducer Expired CA976882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00266855A US3805915A (en) 1972-06-28 1972-06-28 Acoustical impedance matching device for a high impedance transducer

Publications (1)

Publication Number Publication Date
CA976882A true CA976882A (en) 1975-10-28

Family

ID=23016258

Family Applications (1)

Application Number Title Priority Date Filing Date
CA173,324A Expired CA976882A (en) 1972-06-28 1973-06-06 Acoustical impedance matching device for a high impedance transducer

Country Status (3)

Country Link
US (1) US3805915A (en)
CA (1) CA976882A (en)
GB (1) GB1423457A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525872A (en) * 1983-06-27 1985-06-25 Zochowski John S Amplifier
US4775083A (en) * 1987-02-02 1988-10-04 Motorola, Inc. Portable radio carrying case
GB9604140D0 (en) * 1996-02-27 1996-05-01 Spanswick Keith A Radiation measuring apparatus
US7733659B2 (en) * 2006-08-18 2010-06-08 Delphi Technologies, Inc. Lightweight audio system for automotive applications and method
US9247341B2 (en) * 2014-02-26 2016-01-26 Htc Corporation Speaker module

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249873A (en) * 1963-05-22 1966-05-03 Gen Motors Corp Miniaturized helmet exponential horn speaker for a portable radio receiver

Also Published As

Publication number Publication date
US3805915A (en) 1974-04-23
GB1423457A (en) 1976-02-04
AU5735273A (en) 1975-01-09

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