Patent Document ID: 4592085
Application ID: 06469114

Base Claim:
1. A method for recognizing particular phonemes in a voice signal having silence-phoneme and phoneme-phoneme transitions, said method comprising the steps of: providing an electrical signal representing said voice signal; producing a first acoustic parameter signal from said electrical signal, said first acoustic parameter signal containing phonemic information of said voice signal; generating a transition signal from the phonemic information in said first acoustic parameter signal indicating the location in said voice signal of a transition; storing said first acoustic parameter signal; and producing a second acoustic parameter signal from said stored first acoustic parameter signal using said transition signal, said second acoustic parameter signal containing phonemic information of said voice signal at said transition, whereby said second acoustic parameter signal can be compared with known phonemic information to recognize the phonemic information in said voice signal.

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Claim 2:
2. A method for recognizing particular phonemes in a voice signal as in claim 1, wherein said step of producing a first acoustic parameter signal comprises the sub-steps of: providing from an analog electrical signal a digital electrical signal representing said voice signal storing in turn a plurality of said digital signals in a register means; and producing said first acoustic parameter signal from said stored digital signals by Fourier-transforming a plurality of said stored digital signals.