Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Reexamination Certificate
2006-02-21
2006-02-21
Fan, Chieh M. (Department: 2638)
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
C375S365000, C375S354000
Reexamination Certificate
active
07003063
ABSTRACT:
Fast detection of a selected portion of a data packet (e.g. the preamble of a Bluetooth data packet) is accomplished by defining a reference signal waveform conforming to an expected waveform representing a signal modulated in accordance with the selected portion of a data packet. A waveform representing a received data signal containing a data packet with the selected portion is derived, and the reference signal waveform is correlated with this derived waveform to produce a correlation result. This correlation result is used to identify the selected portion in the received data signal.
REFERENCES:
patent: 4984249 (1991-01-01), Long et al.
patent: 5343497 (1994-08-01), Canosi et al.
patent: 5434905 (1995-07-01), Maeda et al.
patent: 5625573 (1997-04-01), Kim
patent: 5727004 (1998-03-01), Propp et al.
patent: 5907558 (1999-05-01), Watanabe
patent: 5907587 (1999-05-01), Sokoler
patent: 6111927 (2000-08-01), Sokoler
patent: 6331976 (2001-12-01), Sriram
patent: 6480559 (2002-11-01), Dabak
patent: 2002/0067784 (2002-06-01), Bowler
Nielsen et al. “A Preamble Based Diversity Scheme for Dect Using a New Signal Quality Measure,” 47 IEEE Vehicular Technology Conference, Phoenix, US, vol. 3, 2017-2021.
Pieper, T., Examiner. European Search Report Application No. EP 00 31 1489, dated Jun. 29, 2001.
Sanchez-Perez et al. “Robust FM Data Transmission In Multipath Propagation Environments,” Sep. 19, 1999, abstract XP-000922299, pp. 2959-2963.
Agilent Technologie,s Inc.
Fan Chieh M.
Perilla Jason M.
LandOfFree
Detecting preambles of data packets does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detecting preambles of data packets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting preambles of data packets will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3674445