Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2002-12-07
2004-01-06
Tran, Sinh (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S424000
Reexamination Certificate
active
06674871
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a positioning device that includes two positioning plates connected to two sides of the diaphragm and at least one of the two positioning plates has the same waved-shaped cross section as the diaphragm.
BACKGROUND OF THE INVENTION
A conventional speaker is widely used among many types of speaker and used for a variety of purposes such as a radio and hi-fi system. A basic structure of a conventional cone speaker includes a damper which supports the central part of the speaker and the peripheral part is supported by a frame through an edge. The edge is functioned as a spring to return a back-and-forth movement of the diaphragm. A voice coil is applied with a current to oscillate the diaphragm, thereby generating a sound. It is important to let the diaphragm vibrate back-and-forth in stable condition thereby generating a stable sound having a desired quality. Although the designers develop different types of material to provide more flexibility to generate a wide range of sound, the diaphragm could shift during operation and this affects the quality of sound.
The present invention intends to provide a positioning device that holds the diaphragm and prevents the diaphragm from being shifted during operation.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a positioning device for a diaphragm of speakers and the device comprises an inner ring and an outer ring. A plurality of connection plates are connected between the inner ring and the outer ring. The positioning device is attached to a side of the diaphragm and has a wave-shaped cross section which is complimentary to a shape of the diaphragm.
REFERENCES:
patent: 3364315 (1968-01-01), Gorike
patent: 5790682 (1998-08-01), Hachiya et al.
LandOfFree
Positioning device for diaphragm for speakers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Positioning device for diaphragm for speakers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Positioning device for diaphragm for speakers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3202408