Method for analysing signals containing pulses

Details Method for analysing signals containing pulses Method for analysing signals containing pulses

2004-08-06

2010-11-30

Abebe, Daniel D (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

C704S225000, C704S223000

Reexamination Certificate

active

07844450

ABSTRACT:
The invention provides a method for analysing an input signal having an input frequency bandwidth. The method comprises providing at least one frequency-bandwidth limited portion of the input signal. For each frequency-bandwidth limited portion of the input signal the durations of half-periods and signal excursions during respective half-periods are determined. Based on the signal excursions and corresponding half-periods a quality of the input signal is determined. The determined signal quality can be a vowel in a10speech signal or a quality related to a condition of an industrial product. The method provides speaker independent vowel recognition, and even whispered vowels can be recognised.

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patent: WO-99/48085 (1999-09-01), None
patent: WO-02/25997 (2002-03-01), None

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