Multifunction transducer

Details Multifunction transducer Multifunction transducer

2003-08-28

2008-09-02

Ni, Suhan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Mounting or support feature of housed loudspeaker

C381S190000, C381S396000

Reexamination Certificate

active

07421088

ABSTRACT:
Multi-function transducers (130, 700) that are suitable for use in handheld devices such as cellular telephones (100, 900) and are capable of emitting audio, and generating accelerations of sufficient magnitude, and at frequencies that can be sensed by tactile sensation and which exhibit resonant modes that are characterized by center frequencies within a frequency range that can be sensed by tactile sensation, and specifically located between two musical notes on a musical scale are provided. Devices (100, 900) including such transducer are provided, and methods of operating such transducers are provided.

REFERENCES:
patent: 5646589 (1997-07-01), Murray et al.
patent: 7106878 (2006-09-01), Saiki et al.
patent: 2003/0044031 (2003-03-01), Son
patent: 2004/0252857 (2004-12-01), Lewis

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