The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2003
Filed:
Oct. 07, 1999
Keunmyung Lee, Palo Alto, CA (US);
Hewlett-Packard Development Company L.P.P., Houston, TX (US);
Abstract
A signal equalization system provides a block-mode equalization system for digital equalization in computer and networking systems in which a “1” bit pulse is followed by a significant negative bit and less significant negative bit pulses as a multiple groups with a lower bit rate. The magnitude of the grouped bit pulses, or blocks of equalization bit pulses, can be the average value of the individual bits to produce a clean output waveform. Since the block compensates for the lower frequency response of the channel, its effectiveness is not sensitive to the exact location of the pulses. This makes it possible to align the blocks in wide pulses having decreasing magnitudes and increasing durations. This further means that when data multiplexing is involved in driver circuitry for the signal transmitter, the block can be generated from a lower frequency clocked domain before the multiplexing without burdening the high frequency side of the driver circuitry.