Method and system for providing improved wireless audio transmis

Details Method and system for providing improved wireless audio transmis Method and system for providing improved wireless audio transmis

1996-10-03

1998-10-06

Tong, Nina

Communications: electrical

Audible indication

Electronic

340555, 359142, 359149, 359152, 359157, 359159, 359180, 359186, 359189, 379 563, 381 77, 381 79, 434351, 455 66, G08B 310

Patent

active

058183280

ABSTRACT:
A method and system for providing improved confined area audio amplification is provided. Designed to meet the requirements of classrooms, conference rooms and offices, this new invention provides improved signal-to-noise ratio, improved system redundancy, and higher voice audio quality than is offered in previous systems. This invention utilizes infrared as the wireless communications channel, and does so with two receivers, a master and a slave to provide redundancy in signal reception and thereby solving one of the long standing problems with line of sight communications systems. This invention also employs a pulse position modulated signal which has higher noise and interference immunitity that is available with prior systems. This invention is flexible with a lightweight, wireless, battery operated transmitter packaged in a necklace type of holder, suitable for wearing around the neck of the speaker. This invention employs speech processing techniques to improve the sound quality and clarity of human speech audio. This invention is further innovative in its combination of features that are focused on solving the problem of amplification of speech in a confined area.

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