Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2008-01-01
2008-01-01
Phu, Phuong (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S349000, C375S347000, C375S346000, C375S148000, C375S150000
Reexamination Certificate
active
10749322
ABSTRACT:
There is provided to an apparatus and method for selecting a beam having an optimal channel characteristic among multiple beams, which are formed at a digital TV receiver employing a switched beamforming part. The beam selecting apparatus of the digital TV receiver having a switched beamformer and a channel equalize includes: a correlating unit for calculating cross-correlation values with respect to previous known Field Sync signals and Field Sync signals of beams having energy larger than a predefined value among beams outputted from the switched beamformer; a channel profile extracting unit for extracting multi-path channel profiles of the beams by using the cross-correlation values; an effective signal path searching unit for obtaining the number of effective signal paths having values larger than a predefined threshold based on the channel profiles; and a beam selecting unit for selecting beams of a channel profile having the smallest number of the effective signal paths among the beams outputted from the switched beamforming means as an input beam of the channel equalizer.
REFERENCES:
patent: 6714584 (2004-03-01), Ishii et al.
patent: 6946993 (2005-09-01), Seo et al.
patent: 7103120 (2006-09-01), Shibata
patent: 7209512 (2007-04-01), Jitsukawa et al.
patent: 2001-0093207 (2001-10-01), None
patent: 2002-0003876 (2002-01-01), None
patent: 2002-0033788 (2002-05-01), None
patent: 2002-0049358 (2002-06-01), None
Bae Jae-Hwui
Kim Seung-Won
Lee Soo-In
Seo Jae-Hyun
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Phu Phuong
LandOfFree
Apparatus and method for selecting optimal beam for digital... 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 selecting optimal beam for digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for selecting optimal beam for digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3945530