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.

Date of Patent:
Jun. 08, 2010

Filed:

Jul. 28, 2009
Applicants:

Wilson Wong, San Francisco, CA (US);

Rakesh H. Patel, Cupertino, CA (US);

Sergey Shumarayev, San Leandro, CA (US);

Tin H. Lai, San Jose, CA (US);

Inventors:

Wilson Wong, San Francisco, CA (US);

Rakesh H. Patel, Cupertino, CA (US);

Sergey Shumarayev, San Leandro, CA (US);

Tin H. Lai, San Jose, CA (US);

Assignee:

Altera Corporation, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 9/00 (2006.01); H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems and methods for adjusting a signal received from a communication path are disclosed. A receiver can receive a signal from a communication path which attenuates at least some frequency components of the signal. The receiver can include an equalization block that adjusts at least some of the frequency content of the received signal, a signal normalization block that provides a normalized signal amplitude and/or a normalized edge slope, and a control block. In one embodiment, the control block controls frequency adjustment in the equalization block for high frequencies but not for low frequencies. For low frequency adjustment, the control block controls the normalized signal amplitude in the signal normalization block. In this manner, controlled adjustment for low frequency content is performed in the signal normalization block.


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