The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2009
Filed:
Sep. 10, 2004
Henry Azima, Huntingdon, GB;
Nicholas Patrick Roland Hill, Huntingdon, GB;
Robin Christopher Cross, Huntingdon, GB;
Timothy Christopher Whitwell, Huntingdon, GB;
Johan Frank Van Der Linde, Huntingdon, GB;
Henry Azima, Huntingdon, GB;
Nicholas Patrick Roland Hill, Huntingdon, GB;
Robin Christopher Cross, Huntingdon, GB;
Timothy Christopher Whitwell, Huntingdon, GB;
Johan Frank Van Der Linde, Huntingdon, GB;
New Transducers Limited, Huntingdon Cambs, GB;
Abstract
Audio apparatus () comprising a piezoelectric transducer () and coupling means () for coupling the transducer to a user's pinna () whereby the transducer excites vibration in the pinna () to cause it to transmit an acoustic signal from the transducer () to a user's inner ear, characterised in that the transducer is embedded in a casing () of relatively soft material and the casing () is mounted to a housing () of relatively hard material such that a cavity () is defined between the casing () and housing (). A method of designing audio apparatus comprising mechanically coupling a piezoelectric transducer to a user's pinna and driving the transducer so that the transducer excites vibration in the pinna to cause it to transmit an acoustic signal from the transducer to a user's inner ear, characterised by embedding the transducer in a casing of relatively soft material and by mounting the casing to protective housing of relatively hard material such that a cavity is defined between the casing and housing.