Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-05-24
2011-05-24
Vo, Don N (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
Reexamination Certificate
active
07949057
ABSTRACT:
A spectrum coding apparatus capable of performing coding at a low bit rate and with high quality is disclosed. This apparatus is provided with a section that performs the frequency transformation of a first signal and calculates a first spectrum, a section that converts the frequency of a second signal and calculates a second spectrum, a section that estimates the shape of the second spectrum in a band of FL≦k<FH using a filter having the first spectrum in a band of 0≦k<FL as an internal state and a section that codes an outline of the second spectrum determined based on a coefficient indicating the characteristic of the filter at this time.
REFERENCES:
patent: 5893068 (1999-04-01), Hasegawa
patent: 6680972 (2004-01-01), Liljeryd et al.
patent: 2002/0152085 (2002-10-01), Tsushima
patent: 2003/0093271 (2003-05-01), Tsushima
patent: 2003/0125889 (2003-07-01), Sato
patent: 2003/0171916 (2003-09-01), Kamba
patent: 2004/0028125 (2004-02-01), Sato
patent: 2004/0028244 (2004-02-01), Tsushima
patent: 2007/0083362 (2007-04-01), Moriya et al.
patent: 2009/0190649 (2009-07-01), Tonietto et al.
patent: 2010/0067567 (2010-03-01), Ghiasi
patent: 1 351 218 (2003-10-01), None
patent: 685607 (1994-03-01), None
patent: 6350401 (1994-12-01), None
patent: 8123495 (1996-05-01), None
patent: 990992 (1997-04-01), None
patent: 9258787 (1997-10-01), None
patent: 2001521648 (2001-11-01), None
patent: 2001356788 (2001-12-01), None
patent: 200241089 (2002-02-01), None
patent: 2002132298 (2002-05-01), None
patent: 2002175092 (2002-06-01), None
patent: 2002-328699 (2002-11-01), None
patent: 2003255997 (2003-09-01), None
patent: 03/007480 (2003-01-01), None
patent: 2003003345 (2003-01-01), None
patent: 2003019533 (2003-03-01), None
Japanese Notice of Reasons for Rejection dated Nov. 24, 2010.
PCT International Search Report dated Mar. 8, 2005.
Chinese Office Action dated Jul. 18, 2008.
Supplementary European Search Report dated Jul. 15, 2008.
M. Oshikiri, et al., “Efficient Spectrum Coding for Super-Wideband Speech and its Application to Jul. 10, 2015 KHz Bandwidth Scalable Coders,” Acoustics, Speech, and Signal Processing, 2004, Proceedings (ICASSP '04), IEEE International Conference on Montreal, Quebec, vol. 1, May 17, 2004, pp. 481-484.
Dickinson Wright PLLC
Panasonic Corporation
Vo Don N
LandOfFree
Spectrum coding apparatus, spectrum decoding 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 Spectrum coding apparatus, spectrum decoding apparatus,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrum coding apparatus, spectrum decoding apparatus,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2676379