Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Reexamination Certificate
2007-01-02
2007-01-02
Kim, Kevin (Department: 2611)
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
C370S514000
Reexamination Certificate
active
09981903
ABSTRACT:
The invention relates to a method and a device for identifying a data packet in a data stream, in which by means of a d.c. voltage quota determining circuit (30) the d.c. voltage quota (dc) for a demodulated digital input signal (Sin) is calculated, in which a k-bit word is allocated to the input signal (Sin), in that for each symbol of the input signal (Sin) corresponding to a bit a bit value (1 or 0) is determined by a decoding circuit (37) as a function of the d.c. voltage quota (dc), in which the k-bit word corresponding to the input signal (Sin) is compared by a comparison and correlation calculating circuit (41) with an expected k-bit synchronization word in order to determine a correlation value (cv) and in which a packet identification signal (Pd) is generated by a correlation value comparison circuit (43) if the correlation value (cv) is greater than a correlation threshold value (cth). Calculation of the d.c. voltage quota (dc) is therein repeated continually at least until a packet identification signal (Pd) indicates that a data packet is being received.
REFERENCES:
patent: 5448571 (1995-09-01), Hong et al.
patent: 5463401 (1995-10-01), Iwasaki
patent: 5566213 (1996-10-01), Carsello
patent: 5729571 (1998-03-01), Park et al.
patent: 6246735 (2001-06-01), Sano et al.
patent: 6529566 (2003-03-01), Carsello et al.
patent: PUPA7-30133 (1995-01-01), None
patent: PUPA8-78657 (1996-03-01), None
patent: PUPA 8-146256 (1996-06-01), None
patent: PUPA10-10374 (1998-01-01), None
patent: 00/18150 (2000-03-01), None
patent: 0011831 (2000-03-01), None
patent: 0180508 (2001-10-01), None
C. Park, et al “Techniques for Channel Estimation, DC-Offset Compensation, and Link Quality Control in Bluetooth System”, IEEE Transactions on Consumer Electronics, vol. 46, No. 3, Aug. 2000, pp. 682-689.
Kafemann Harald
Schetelig Markus
Kim Kevin
Nokia Corporation
LandOfFree
Method and device for identifying a data packet in a data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for identifying a data packet in a data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for identifying a data packet in a data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3747380