Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2006-08-22
2006-08-22
Le, Huyen (Department: 2615)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S343000, C381S398000, C381S407000
Reexamination Certificate
active
07095869
ABSTRACT:
The invention provides a continuous layer of polymer that is shaped to act as the suspension, the former, and an attachment to the diaphragm. The coil may be located within the pocket providing insulation to the coil thus preventing electrical short circuiting of the voice coil as the voice coil expands or contracts based on its operating temperature. The invention also provides an inner flange area of a suspension that may act as a spring generating additional acoustic energy from the compression driver. The inner flange area may also be tuned to vibrate at a predetermined high frequency. Thus, in certain applications, where more acoustic energy is desired at high frequency, the inner flange area may be tuned to provide that extra acoustic energy. To further increase the high frequency energy generated by the compression driver, the diaphragm may be coupled to the bottom side of the inner flange area. Such an arrangement places the diaphragm closer to the phasing plug to minimize the space or cavity between the two. With a smaller cavity, the resonance in the cavity increases, so that the compression driver generates more energy at high frequency.
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patent: 1 531 791 (1978-11-01), None
Harman International Industries, Inc.
Le Huyen
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