Cellular phone

Details Cellular phone Cellular phone

2007-03-27

2007-03-27

Chin, Vivian (Department: 2615)

Electrical audio signal processing systems and devices

Including frequency control

C084S619000

Reexamination Certificate

active

09669032

ABSTRACT:
A cellular phone is provided with a melody sound reproducing unit comprising: a speaker for providing specified output in a range between a first frequency and a second frequency; a signal generator for supplying an audio signal to the speaker; a memory for storing signal data corresponding to an audio signal to be generated by the signal generator; and a controller for controlling the signal generator based on the signal data, wherein the signal data is stored in the memory when the frequency of the corresponding audio signal is in a range between the first frequency and the second frequency, and the audio signal whose frequency is in a range between the first frequency and the second frequency is supplied to the speaker.

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