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:
Oct. 23, 2012
Filed:
Nov. 10, 2009
Thiam Sin Lai, Bayan Lepas, MY;
Siew Leong Lam, Petaling Jaya, MY;
Thiam Sin Lai, Bayan Lepas, MY;
Siew Leong Lam, Petaling Jaya, MY;
Altera Corporation, San Jose, CA (US);
Abstract
Integrated circuits with data communications circuitry are provided. The data communications circuitry on an integrated circuit may receive data that was transmitted from another integrated circuit at a data rate. The data communications circuitry may include oversampling circuitry that oversamples the data to produce an oversampled version of the data at an oversampled data rate. Downsampling circuitry in the data communications circuitry may be used to downsample the oversampled data. The downsampling circuitry may include cascaded groups of registers that store the oversampled data. The outputs of each of the groups of registers may be combined to form a combined parallel output. A downsampling control circuit may have a multiplexer that selects a subset of the signals from the combined parallel output in response to control signals from a transition detector. A middle bit detector may extract a bit value from the selected subset to use as the downsampled output.