Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2006-01-24
2006-01-24
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C375S225000
Reexamination Certificate
active
06990418
ABSTRACT:
A method and systems for automatically adjusting the parameters of signal emitter in a synchronous high-speed transmission system, is disclosed. According to the method of the invention, the quality of a high-speed received signal is analyzed for a plurality of sets of parameter values and the one producing the best signal quality is selected. In a first embodiment, the quality of the high-speed received signal is determined by analyzing a digital eye characterizing the signal behavior, obtained by over-sampling the high-speed received signal. In a second embodiment, the quality of the high-speed received signal is determined by analyzing the behavior of the phase rotator used for data sampling. Finally, in a third embodiment, the quality of the high-speed received signal is determined by analyzing a digital eye, obtained by moving the position of a phase rotator from one end to the other and sampling data at each position.
REFERENCES:
patent: 4029904 (1977-06-01), Papeschi
patent: 4320526 (1982-03-01), Gitlin
patent: 5333147 (1994-07-01), Nohara et al.
patent: 5598439 (1997-01-01), Wagner
patent: 2004/0136451 (2004-07-01), Blanc et al.
Schreiner et al., Automatic Distortion Correction for Efficient Pulse Transmission, Jan. 1965, IBM Journal, pp. 20-30.
Bateman et al., Adjustment of Predetection Filters in High-Speed Data Transmission Systems, Dec. 1990. IEE Proceedings, vol. 137, Pt. I, No. 6, pp. 355-364.
Foley et al., A Low-Power 8-PAM Serial Transceiver in 0.5-microm Digital CMOS, Mar. 2002, IEEE Journal of Solid-State Circuits, vol. 37, No. 3, pp. 310-316.
Blanc Alain
Jeanniot Patrick
LandOfFree
Method and systems for optimizing high-speed signal... 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 systems for optimizing high-speed signal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and systems for optimizing high-speed signal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3550451