Appeal No. 1999-0437
Application 08/627,249
Representative claim 1 is reproduced as follows:
1. An output-based objective method for evaluating
the quality of speech in a voice communication system
comprising:
providing a plurality of speech reference vectors, the
speech reference vectors corresponding to a plurality of known
clean speech samples obtained in a quiet environment;
receiving an unknown corrupted speech signal from an
unavailable clean speech signal that is corrupted with
distortions;
determining a plurality of distortions by comparing
the unknown corrupted speech signal to at least one of the
plurality of speech reference vectors; and
generating a score representing a subjective quality
of the unknown corrupted speech signal based on the plurality
of distortions.
The examiner relies on the following references:
Bahl et al. (Bahl) 4,718,094 Jan. 05, 1988
Picone et al. (Picone) 4,815,134 Mar. 21, 1989
Sakamoto et al. (Sakamoto) 5,404,422 Apr. 04, 1995
Hollier 5,621,854 Apr. 15, 1997
(filed Dec. 12,
1994)
Claims 1, 10 and 19 stand rejected under 35 U.S.C.
§ 102(e) as being anticipated by the disclosure of Hollier.
Claims 2-9, 11-18 and 20 stand rejected under 35 U.S.C. § 103.
As evidence of obviousness the examiner offers Hollier in view
of Sakamoto with respect to claims 2-4, 11-13 and 20, Hollier
2
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