Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-03-15
2005-03-15
Liu, Shuwang (Department: 2634)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S267000, C375S342000, C370S204000, C370S470000, C370S342000
Reexamination Certificate
active
06868112
ABSTRACT:
An apparatus for detecting the signals of transmission diversity based on space-time coding is disclosed. The apparatus and method for detecting signals of space-time coding performs linear interpolation and linear filtering to calculate the channel estimate of each transmission symbol from the channel estimate of each slot, thus providing the correct channel estimate even in a channel with considerable fluctuation. Further, the output control with estimation of SIR only passes a proper output of the demodulating and detecting circuit to improve the signal to noise ratio, maintaining enough communication quality even in a bad communication environment.
REFERENCES:
patent: 5097484 (1992-03-01), Akaiwa
patent: 5852630 (1998-12-01), Langberg et al.
patent: 6259724 (2001-07-01), Esmailzadeh
patent: 6700926 (2004-03-01), Heikkila et al.
Boariu, Decoder, and Associated Method, For Decoding Space-Time Encoded Data, Pub. No.: US 2003/0031276 A1.
Kim Yeon-Soo
Lee Joon-Ho
Shin Young-Hee
Blakely & Sokoloff, Taylor & Zafman
Korea & Telecom
Zheng Eva
LandOfFree
Apparatus and method for detecting signals of space-time... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for detecting signals of space-time..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting signals of space-time... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393124