Acoustic recognition system using accumulate power series

Details Acoustic recognition system using accumulate power series Acoustic recognition system using accumulate power series

1990-03-29

1992-08-04

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 42, G10L 506

Patent

active

051366533

ABSTRACT:
A recognitiion method and system for associating a pattern, such as a printed character with an acoustic signal, such as speech. A multilevel power sequence is generated from the acoustic signal, and the sequence is segmented into phonemes. The multilevel power sequence is converted into a binary level sequence to reduce noise. The binary power sequence is accumulated to give a series whose elements are partial sums of the sequence as a function of time. The accumulated sequence is differentiated to give a series whose elements are the derivatives of the accumulated sequence as a function of time. The differentiated sequence is then associated with a pattern, such as a printed character.

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patent: 4827519 (1989-05-01), Fujimoto et al.
patent: 4827522 (1989-05-01), Matsuura et al.

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