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(12) Patent: | (11) CA 2340072 |
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(54) English Title: | AMPLIFICATEUR HARMONIQUE ET TRANSDUCTEUR ELECTRO-ACOUSTIQUE CORRESPONDANT |
(54) French Title: | HARMONIC AMPLIFIER AND CORRESPONDING ELECTROACOUSTIC TRANSDUCER |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | SMART & BIGGAR LP |
(74) Associate agent: | |
(45) Issued: | 2008-02-19 |
(86) PCT Filing Date: | 1999-07-22 |
(87) Open to Public Inspection: | 2000-03-02 |
Examination requested: | 2004-05-11 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/FR1999/001807 |
(87) International Publication Number: | FR1999001807 |
(85) National Entry: | 2001-02-16 |
(30) Application Priority Data: | ||||||
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In the field of sound reproduction it is customary to use diaphragms excited by magnetic motors or tape electrostatic systems. All these products have important volumes being actuated to produce sound. Inversely, sound is an impact between air particles which are infinitely small in volume which provide them with high sound propagation velocity. The invention concerns a method using low level electromagnetism which relies on ambient air particles, thereby generating a novel magnetic field. Said method is characterised in that it uses an apparatus consisting of at least an electric wire winding (1) coiled on a flexible polymer support (2), with an impedance of 8 ohms. Said apparatus is coupled with an audio electric signal of an acoustic chamber or an acoustic supply. Said method and apparatus can be used on all audio, audio-visual systems and any communication mode such as telephone, radio as well as in the medical field for the auditory comfort of hard-of-hearing persons.
The invention relates to a device that improves an audio sound emitted by at
least one acoustic baffle, the device delivering an electric signal to the at
least
one acoustic baffle, the device comprising (i) means for superimposing on the
audio sound refined sound information contained in a source signal of the
audio
sound; and (ii) at least one coil of wire in free ambient air to which is
supplied an
electric signal, which is the same of the signal of the device delivers to the
at
least one acoustic baffle, wherein the device is adapted to provide a harmonic
amplifying electro-acoustic transducer to supplement at least one of
electro--acoustic baffles and a transducer.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Time Limit for Reversal Expired | 2017-07-24 |
Letter Sent | 2016-07-22 |
Grant by Issuance | 2008-02-19 |
Inactive: Cover page published | 2008-02-18 |
Inactive: Final fee received | 2007-11-28 |
Pre-grant | 2007-11-28 |
Notice of Allowance is Issued | 2007-05-31 |
Letter Sent | 2007-05-31 |
Notice of Allowance is Issued | 2007-05-31 |
Inactive: First IPC assigned | 2007-05-23 |
Inactive: IPC assigned | 2007-05-23 |
Inactive: IPC assigned | 2007-05-23 |
Inactive: Approved for allowance (AFA) | 2007-05-15 |
Amendment Received - Voluntary Amendment | 2007-03-06 |
Inactive: S.30(2) Rules - Examiner requisition | 2006-09-12 |
Letter Sent | 2006-02-07 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2006-01-24 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2005-07-22 |
Letter Sent | 2004-05-28 |
All Requirements for Examination Determined Compliant | 2004-05-11 |
Request for Examination Received | 2004-05-11 |
Request for Examination Requirements Determined Compliant | 2004-05-11 |
Letter Sent | 2003-11-12 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2003-10-24 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2003-07-22 |
Letter Sent | 2003-04-07 |
Inactive: Single transfer | 2003-02-11 |
Extension of Time for Taking Action Requirements Determined Compliant | 2002-07-11 |
Letter Sent | 2002-07-11 |
Inactive: Delete abandonment | 2002-07-10 |
Inactive: Status info is complete as of Log entry date | 2002-06-28 |
Inactive: Extension of time for transfer | 2002-05-21 |
Inactive: Abandoned - No reply to Office letter | 2002-05-21 |
Amendment Received - Voluntary Amendment | 2002-03-18 |
Inactive: Cover page published | 2001-05-24 |
Inactive: First IPC assigned | 2001-05-23 |
Inactive: Courtesy letter - Evidence | 2001-04-17 |
Inactive: Notice - National entry - No RFE | 2001-04-10 |
Inactive: Applicant deleted | 2001-04-10 |
Application Received - PCT | 2001-04-09 |
Application Published (Open to Public Inspection) | 2000-03-02 |
Abandonment Date | Reason | Reinstatement Date |
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2005-07-22 | ||
2003-07-22 |
The last payment was received on 2007-06-20
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO
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Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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PICA-SOUND INTERNATIONAL |
Past Owners on Record |
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CLAUDE-ANNIE PERRICHON |
MARC CHARBONNEAUX |
PATRICE MORCHAIN |
PIERRE PICCALUGA |