Method and apparatus for processing a speech signal

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

Reexamination Certificate

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Reexamination Certificate

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07925499

ABSTRACT:
A method and apparatus for generating a control signal for processing a speech signal comprising the steps of: adjusting the signal relative to a threshold level; and responsive to detection of a falling edge of the signal, holding the signal level for a holding period. The technique further comprises ‘slowing’ each rising edge of the signal. The technique further comprises attenuating each falling edge of the signal. The steps are carried out on a signal representing the envelope of the speech signal.

REFERENCES:
patent: 4461025 (1984-07-01), Franklin
patent: 5864793 (1999-01-01), Mesiwala et al.
patent: 2002/0094091 (2002-07-01), Wu et al.
patent: 0311808 (1989-04-01), None
patent: 0663748 (1995-07-01), None
patent: 06253945 (2006-10-01), None
Chiarizia, Brigitte, “EP Application No. 06253945.7 Office Action Jun. 9, 2008”, , Publisher: EPO, Published in: EP.

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