CA2194266A1 - Piezo speaker and installation method for laptop personal computer and other multimedia applications - Google Patents

Piezo speaker and installation method for laptop personal computer and other multimedia applications

Info

Publication number
CA2194266A1
CA2194266A1 CA002194266A CA2194266A CA2194266A1 CA 2194266 A1 CA2194266 A1 CA 2194266A1 CA 002194266 A CA002194266 A CA 002194266A CA 2194266 A CA2194266 A CA 2194266A CA 2194266 A1 CA2194266 A1 CA 2194266A1
Authority
CA
Canada
Prior art keywords
personal computer
installation method
piezo speaker
multimedia applications
laptop personal
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
CA002194266A
Other languages
French (fr)
Other versions
CA2194266C (en
Inventor
John K. Conley
William Kokonaski
Michael J. Parrella
Steven L. Machacek
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.)
NVF Tech Ltd
Original Assignee
John K. Conley
William Kokonaski
Michael J. Parrella
Steven L. Machacek
Noise Cancellation Technologies, Inc.
Nct Group, Inc.
New Transducers Limited
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 John K. Conley, William Kokonaski, Michael J. Parrella, Steven L. Machacek, Noise Cancellation Technologies, Inc., Nct Group, Inc., New Transducers Limited filed Critical John K. Conley
Publication of CA2194266A1 publication Critical patent/CA2194266A1/en
Application granted granted Critical
Publication of CA2194266C publication Critical patent/CA2194266C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1632—External expansion units, e.g. docking stations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1688—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being integrated loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Abstract

The modifications to the computer consist of placing piezoelectric patches behind the LCD and directly to the back wall of the laptop lid. Damping material and stiffeners are also added to the back wall to reduce structural resonance.
A system consisting of an audio amplifier (5) and transformer (6) is used to drive the piezo speaker (7).
CA002194266A 1994-07-06 1995-06-29 Piezo speaker and installation method for laptop personal computer and other multimedia applications Expired - Fee Related CA2194266C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US267,218 1988-11-22
US08/267,218 US5638456A (en) 1994-07-06 1994-07-06 Piezo speaker and installation method for laptop personal computer and other multimedia applications
PCT/US1995/008131 WO1996001547A2 (en) 1994-07-06 1995-06-29 Piezo speaker and installation method for laptop personal computer and other multimedia applications

Publications (2)

Publication Number Publication Date
CA2194266A1 true CA2194266A1 (en) 1996-01-18
CA2194266C CA2194266C (en) 2001-04-03

Family

ID=23017832

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002194266A Expired - Fee Related CA2194266C (en) 1994-07-06 1995-06-29 Piezo speaker and installation method for laptop personal computer and other multimedia applications

Country Status (4)

Country Link
US (1) US5638456A (en)
EP (1) EP0772953A4 (en)
CA (1) CA2194266C (en)
WO (1) WO1996001547A2 (en)

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Also Published As

Publication number Publication date
WO1996001547A2 (en) 1996-01-18
US5638456A (en) 1997-06-10
EP0772953A2 (en) 1997-05-14
WO1996001547A3 (en) 1996-02-22
CA2194266C (en) 2001-04-03
EP0772953A4 (en) 2002-11-13

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