Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-03-30
2010-10-26
Chaudry, M. Mujtaba K (Department: 2112)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S776000, C375S275000
Reexamination Certificate
active
07823047
ABSTRACT:
There is disclosed a base band signal generation device and others for processing transmission data so that a reception side can restored the data without recognizing whether the data has been subjected to a processing and transmitting the data with an appropriate efficiency corresponding to the communication quality. A transmission device T judges the communication quality of a transmission path L. When the communication quality is preferable, a four-value FSK symbol is generated from the bit of the most significant part of the encoded voice data and the bit of the least significant part. When the communication quality is not preferable, a four-value FSK symbol is generated from the bit of the most significant part of the encoded voice data and a redundant bit of “0”. However, a symbol containing a redundant bit is set to the maximum value or the minimum value of the four values which the symbol value may have. Moreover, each bit of the encoded voice data has a value “0” when indicating that no component corresponding to the bit is present.
REFERENCES:
patent: 5727030 (1998-03-01), Miyashita
patent: 6141787 (2000-10-01), Kunisa et al.
patent: 6512748 (2003-01-01), Mizuki et al.
patent: 6735714 (2004-05-01), Yamanaka et al.
patent: 7165102 (2007-01-01), Shah et al.
patent: 7194047 (2007-03-01), Strolle et al.
patent: 7526710 (2009-04-01), Sawaguchi
patent: 2002/0075834 (2002-06-01), Shah et al.
patent: 2003/0081693 (2003-05-01), Raghavan et al.
patent: 2003/0134607 (2003-07-01), Raghavan et al.
patent: 2004/0024588 (2004-02-01), Watson et al.
patent: 2004/0057535 (2004-03-01), Strolle et al.
patent: 50594/96 (1996-10-01), None
patent: 2173785 (1996-10-01), None
patent: 696 33 313 (1996-10-01), None
patent: 0 738 053 (1996-10-01), None
patent: 08-288796 (1996-11-01), None
patent: 11-220762 (1999-08-01), None
patent: 2003-174485 (2003-06-01), None
patent: 0170011 (1999-03-01), None
patent: WO 03/049392 (2003-06-01), None
International Search Report for PCT/JP2005/006726.
International Preliminary Examination Report (Application No. PCT/JP2005/006726) dated Oct. 26, 2006.
Chaudry M. Mujtaba K
Eric J. Robinson, Robinson Intellectual Property Law Office, P.C
Kabushiki Kaisha Kenwood
LandOfFree
Device and method for generating a base band signal and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for generating a base band signal and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for generating a base band signal and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4188499