http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1332643-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7a8d9e6e9d3b1e276fe1d20bbf034a35 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-49005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-43 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R19-016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R19-04 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R1-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R19-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R19-04 |
| filingDate | 2001-10-31^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5840e606e338e63c92d0b2153914c5f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ce85000d79d17805abb4bb49668af5b |
| publicationDate | 2003-08-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1332643-A1 |
| titleOfInvention | An electret condenser microphone |
| abstract | The present invention relates to an electret condenser microphone including the vibratory diaphragm which is comprised of an electret film into which an electric charge is charged; a conductive film formed on one side of the electret film by sputtering of chemical vapor deposition (CVD); and a polar ring disposed at a peripheral edge of the underside of the conductive film such that the conductive film formed on the electret film is located apart from the inner surface of the case at a given distance (Δt). Also, this microphone includes a vibratory diaphragm support member which is disposed on the vibratory diaphragm and has a concave groove and a concave portion. The concave portion has a plurality of sound holes which are formed at a bottom surface thereof such that the vibratory diaphragm is vibrated easily. On the vibratory diaphragm support member is attached an integrated circuit serving to receive and amplify a transformed electrical signal from the vibratory diaphragm. Furthermore, the microphone includes an insulating cap on which a pair of contact pins are located. As a result, the electret condenser microphone of the present invention has a simple structure and hence can be miniaturized. In addition, it is manufactured through a reduced number of assembling processes whereby manufacturing yields can be increased and manufacturing costs can be reduced. |
| priorityDate | 2000-11-01^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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