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2. 发明专利

GB2336065B Miniature transducer 未知
公开(公告)号：GB2336065B
公开(公告)日：2002-04-10
申请号：GB9905081
申请日：1999-03-08
申请人： KNOWLES ELECTRONICS INC , KNOWLES ELECTRONICS LLC
发明人： MILLER THOMAS E
IPC分类号： H04R11/02 , H04R25/00
摘要： A miniature transducer such as for an in-the-canal hearing aid, is disclosed. The transducer comprises a housing formed of a top cup joined to a bottom cup and defines an interior and an exterior. The bottom cup includes a base surface and a plurality of interconnected walls. The transducer further comprises a motor including a coil, a stack and an armature disposed substantially within the bottom cup. The housing includes an opening and a portion of the stack extends outwardly through the opening. Because the stack extends outwardly through the opening, the overall thickness of the transducer is reduced.

4. 发明专利

NL1011639A1 未知
公开(公告)号：NL1011639A1
公开(公告)日：1999-10-01
申请号：NL1011639
申请日：1999-03-22
申请人： KNOWLES ELECTRONICS INC
发明人： MILLER THOMAS EDWARD
IPC分类号： H04R11/02 , H04R25/00 , H04R25/02
摘要： A miniature transducer such as for an in-the-canal hearing aid, is disclosed. The transducer comprises a housing formed of a top cup joined to a bottom cup and defines an interior and an exterior. The bottom cup includes a base surface and a plurality of interconnected walls. The transducer further comprises a motor including a coil, a stack and an armature disposed substantially within the bottom cup. The housing includes an opening and a portion of the stack extends outwardly through the opening. Because the stack extends outwardly through the opening, the overall thickness of the transducer is reduced.

5. 发明专利

NL1010320A1 未知
公开(公告)号：NL1010320A1
公开(公告)日：1999-04-19
申请号：NL1010320
申请日：1998-10-14
申请人： KNOWLES ELECTRONICS INC
发明人： MILLER THOMAS EDWARD , CARLSON ELMER VICTOR
IPC分类号： H04R11/00 , H04R11/02 , B23K31/00
摘要： A receiver for converting electrical energy to acoustical energy, and a method of manufacturing the receiver, are disclosed. The receiver comprises an armature having a peripheral edge, a magnet stack and a weld joint for attaching the armature to the magnet stack at the peripheral edge of said armature. The method comprises providing an armature having a peripheral edge, providing a magnet stack adjacent said armature, and welding said armature to the magnet stack at the peripheral edge of said armature.

7. 发明专利

DE69308027T2 未知
公开(公告)号：DE69308027T2
公开(公告)日：1997-08-21
申请号：DE69308027
申请日：1993-09-14
申请人： KNOWLES ELECTRONICS INC
发明人： HOLESHA KENNETH
IPC分类号： H04R1/28 , H04R25/00
摘要： A microphone for a hearing aid having a modified high frequency response is disclosed. The hearing aid comprises a hollow housing having an upper wall, a lower wall and a depending wall disposed between the upper wall and the lower wall. The upper, lower and depending walls define a main chamber. The microphone further comprises an inlet tube extending outwardly from the depending wall for receiving sound and a diaphragm in continuous peripheral contact with the depending wall for substantially entirely dividing the main chamber into an input chamber in communicating relationship with the inlet tube and an output chamber. The input chamber presents an effective inertance to sound entering via the inlet tube. A structure is disposed within the input chamber between the diaphragm and the upper wall forming an elongated sound path. The elongated sound path increases the effective inertance of the input chamber to thereby lower the frequency of the peak response of the microphone to a frequency lower than the frequency of the peak response of a conventional receiver coupled thereto, to eliminate high frequency oscillations.

8. 发明专利

NL190915C 未知
公开(公告)号：NL190915C
公开(公告)日：1994-10-17
申请号：NL8720483
申请日：1987-09-04
申请人： KNOWLES ELECTRONICS INC
IPC分类号： H02N2/00 , H04R19/00 , H04R19/01 , H04R25/00
摘要： An acoustic transducer with an improved electret assembly mounting for providing spacings between the fixed and movable electrodes, and having as one feature the lowering of the undesired capacitance therebetween.

9. 发明专利

CA2146118A1 HEARING AID MICROPHONE WITH MODIFIED HIGH-FREQUENCY 未知
公开(公告)号：CA2146118A1
公开(公告)日：1994-04-28
申请号：CA2146118
申请日：1993-09-14
申请人： KNOWLES ELECTRONICS INC
发明人： HOLESHA KENNETH G
IPC分类号： H04R1/28 , H04R25/00
摘要： A microphone for a hearing aid having a modified high-frequency response is disclosed. The hearing aid comprises a hollow housing having an upper wall, a lower wall and a depending wall disposed betwen the upper wall and the lower wall. The upper, lower and depending walls define a main chamber. The microphone further comprises an inlet tube extending outwardly from the depending wall for receiving sound and a diaphragm in continuous peripheral contact with the depending wall for substantially entirely dividing themain chamber into an input chamber in communicating relationship with the inlet tube and an output chamber. The input chamber presents an effective inertance to sound entering via the inlet tube. A structure is disposed within the input chamber between the diaphragm and the upper wall forming an elongated sound path. The elongated sound path increases the effective inertance of the input chamber to thereby lower the frequency of the peak response of the microphone to a frequency lower than the frequency of the peak response of a conventional receiver coupled thereto, to eliminate high frequency oscillations.

10. 发明专利

DE3887841D1 未知
公开(公告)号：DE3887841D1
公开(公告)日：1994-03-24
申请号：DE3887841
申请日：1988-12-01
申请人： KNOWLES ELECTRONICS INC
发明人： MADAFFARI PETER L
IPC分类号： H04R1/22 , H04R17/02 , H04R25/00
摘要： A stepped frequency microphone particularly adapted to a hearing aid application provides a stepped frequency and has a low-pass sonic attenuator for providing to the undriven side of the microphone diaphragm a sonic counterpressure which at low frequencies substantially cancels ambient sound pressure delivered to the drive side of the diaphragm, the attenuator reducing this counterpressure at elevated frequencies to provide accentuated high frequency response.

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