Data processing: speech signal processing – linguistics – language – Speech signal processing – Synthesis
Reexamination Certificate
2011-06-07
2011-06-07
Jackson, Jakieda R (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Synthesis
C704S205000, C704S268000
Reexamination Certificate
active
07957973
ABSTRACT:
An audio signal interpolation device comprises a spectral movement calculation unit which determines a spectral movement which is indicative of a difference in each of spectral components between a frequency spectrum of a current frame of an input audio signal and a frequency spectrum of a previous frame of the input audio signal stored in a spectrum storing unit. An interpolation band determination unit determines a frequency band to be interpolated by using the frequency spectrum of the current frame and the spectral movement. A spectrum interpolation unit performs interpolation of spectral components in the frequency band for the current frame by using either the frequency spectrum of the current frame or the frequency spectrum of the previous frame.
REFERENCES:
patent: 5226084 (1993-07-01), Hardwick et al.
patent: 2006/0004583 (2006-01-01), Herre et al.
patent: 2002-041089 (2002-02-01), None
T. Virtanen et al., “Separation of Harmonic Sound Sources Using Sinusoidal Modeling” Acoustics, Speech, and Signal Processing, IEEE, Jun. 5, 2000; pp. 765-768.
The Extended European Search Report issued Jul. 31, 2007 in corresponding European Patent Application No. 07113137.9.
Makiuchi Takashi
Shirakawa Miyuki
Suzuki Masanao
Tanaka Masakiyo
Fujitsu Limited
Fujitsu Patent Center
Jackson Jakieda R
LandOfFree
Audio signal interpolation method and device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Audio signal interpolation method and device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audio signal interpolation method and device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2626754