State output probability calculating method and apparatus...

Details State output probability calculating method and apparatus... State output probability calculating method and apparatus...

2006-04-06

2010-10-12

Yen, Eric (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S231000, C704S236000, C704S239000, C704S256000

Reexamination Certificate

active

07813925

ABSTRACT:
When adjacent times or the small change of an observation signal is determined, a distribution which maximizes the output probability of a mixture distribution does not change at a high possibility. By using this fact, when obtaining the output probability of the mixture distribution HMM, a distribution serving as a maximum output probability is stored. When adjacent times or the small change of the observation signal is determined, the output probability of the stored distribution serves as the output probability of the mixture distribution. This can reduce the output probability calculation of other distributions when calculating the output probability of the mixture distribution, thereby reducing the calculation amount required for output probabilities.

REFERENCES:
patent: 4214125 (1980-07-01), Mozer et al.
patent: 4624008 (1986-11-01), Vensko et al.
patent: 4977598 (1990-12-01), Doddington et al.
patent: 5018201 (1991-05-01), Sugawara
patent: 5047952 (1991-09-01), Kramer et al.
patent: 5353377 (1994-10-01), Kuroda et al.
patent: 5579435 (1996-11-01), Jansson
patent: 5602959 (1997-02-01), Bergstrom et al.
patent: 5621827 (1997-04-01), Uchiyama et al.
patent: 5640490 (1997-06-01), Hansen et al.
patent: 5677988 (1997-10-01), Takami et al.
patent: 5774847 (1998-06-01), Chu et al.
patent: 5787396 (1998-07-01), Komori et al.
patent: 5794198 (1998-08-01), Takahashi et al.
patent: 5828998 (1998-10-01), Iwahashi
patent: 5933806 (1999-08-01), Beyerlein et al.
patent: 5950159 (1999-09-01), Knill
patent: 5995928 (1999-11-01), Nguyen et al.
patent: 6009390 (1999-12-01), Gupta et al.
patent: 6029130 (2000-02-01), Ariyoshi
patent: 6064958 (2000-05-01), Takahashi et al.
patent: 6216107 (2001-04-01), Rydbeck et al.
patent: 6292777 (2001-09-01), Inoue et al.
patent: 6594393 (2003-07-01), Minka et al.
patent: 6687665 (2004-02-01), Oda et al.
patent: 6697782 (2004-02-01), Iso-Sipila et al.
patent: 6721711 (2004-04-01), Hoshiai
patent: 6789061 (2004-09-01), Fischer et al.
patent: 6813606 (2004-11-01), Ueyama et al.
patent: 6895380 (2005-05-01), Sepe, Jr.
patent: 7058580 (2006-06-01), Ueyama et al.
patent: 7167545 (2007-01-01), Plannerer et al.
patent: 7184951 (2007-02-01), Royle et al.
patent: 7269556 (2007-09-01), Kiss et al.
patent: 7349850 (2008-03-01), Shimomura et al.
patent: 7356466 (2008-04-01), Min et al.
patent: 7460995 (2008-12-01), Rinscheid
patent: 7480617 (2009-01-01), Chu et al.
patent: 7487083 (2009-02-01), Zhang
patent: 7499858 (2009-03-01), Wolfel
patent: 2001/0012994 (2001-08-01), Komori et al.
patent: 2001/0029444 (2001-10-01), Rydbeck et al.
patent: 2003/0040919 (2003-02-01), Miyazawa et al.
patent: 2003/0158729 (2003-08-01), Royle et al.
patent: 2004/0015344 (2004-01-01), Shimomura et al.
patent: 2004/0039572 (2004-02-01), Kiss et al.
patent: 2005/0192803 (2005-09-01), Miyazawa
patent: 968996 (1979-08-01), None
patent: 5-197388 (1993-06-01), None
patent: 9127977 (1997-05-01), None
patent: 2983364 (1999-09-01), None
Rabiner, L. et al., “Fundamentals of Speech Recognition”, PTR Prentice Hall (Signal Processing Series), 1993.
H. Ney et al., “Phoneme modeling using continuous mixture densities”, Proc. ICASSP88, pp. 437-440, 1988.
Office Action dated Aug. 13, 2007 in JP 2005-113954.

Affiliated with

Also associated with

Rating

State output probability calculating method and apparatus... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with State output probability calculating method and apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and State output probability calculating method and apparatus... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4186460