Speaker device, sound reproducing method, and speaker...

Details Speaker device, sound reproducing method, and speaker... Speaker device, sound reproducing method, and speaker...

2011-05-17

2011-05-17

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Circuitry combined with specific type microphone or loudspeaker

With electrostatic loudspeaker

C381S077000, C381S079000, C381S082000, C370S281000, C370S295000

Reexamination Certificate

active

07945059

ABSTRACT:
A speaker device mixes an audible frequency band signal wave with a modulated wave obtained by modulating an ultrasonic frequency band carrier wave with an audible frequency band signal so as to generate a synthesis wave, and drives an ultrasonic transducer with the synthesis wave so as to reproduce a signal sound.

REFERENCES:
patent: 5497372 (1996-03-01), Nankoh et al.
patent: 2003/0185405 (2003-10-01), Spencer et al.
patent: 2005/0220311 (2005-10-01), Sun et al.
patent: 2007/0154036 (2007-07-01), Matsuzawa
patent: 2003-047085 (2003-02-01), None

Affiliated with

Also associated with

Rating

Speaker device, sound reproducing method, and speaker... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speaker device, sound reproducing method, and speaker..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speaker device, sound reproducing method, and speaker... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2666362