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:
Apr. 30, 2002
Filed:
Jan. 07, 1999
Donald S. Lydon, Grass Valley, CA (US);
Charles S. Meyer, Nevada City, CA (US);
ADC Telecommunications, Inc., Eden Prairie, MN (US);
Abstract
An electrical signal is equalized at the receiving end of a transmission path by applying the signal both to a frequency-dependent emphasizer and to a first port of a mixer and applying the output signal of the frequency-dependent emphasizer to a second port of the mixer. The mixer combines the signals received at its first and second ports in accordance with the amplitude of a mixer control signal to generate a mixer output signal. A control signal is generated from the mixer output signal. The control signal has an amplitude dependent on the absolute value of the derivative of the amplitude of the output signal of the mixer during an interval that starts after the beginning of a bit cell and ends before the end of the bit cell. The control signal is applied to the mixer as the mixer control signal.