Infrared communication receiver

Details Infrared communication receiver Infrared communication receiver

2011-01-04

2011-01-04

Ramakrishnaiah, Melur (Department: 2614)

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

C379S055100, C379S090010, C375S353000

Reexamination Certificate

active

07864928

ABSTRACT:
In order to adjust and decrease an acoustic pressure of a speaker driven based on an audio signal, an infrared communication receiver includes: a receiving section for receiving via infrared communication an audio signal representing audio data; and a speaker driving section for driving a speaker based on the audio signal received by the receiving section. The receiving section includes: a receiving block for receiving the audio signal; and a pulse width expanding and compressing section for expanding or compressing a pulse width of the audio signal received by the receiving block.

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