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:
Feb. 26, 2013
Filed:
Jul. 27, 2011
Sarvendra Govindammagari, Hyderabad, IN;
Veerender Kumar Soma, Pargi, IN;
Heramba Aligave, Hyderabad, IN;
Douglas M. Grant, Gorebridge, GB;
Sarvendra Govindammagari, Hyderabad, IN;
Veerender Kumar Soma, Pargi, IN;
Heramba Aligave, Hyderabad, IN;
Douglas M. Grant, Gorebridge, GB;
Xilinx, Inc., San Jose, CA (US);
Abstract
Decoder circuits and methods down-sample the samples that oversample an input signal having a differential Manchester encoding. A first input port receives first, second, and third samples. A second input port receives a state indicating whether a clock transition or a data transition precedes the first, second, and third samples. A third input port receives first, second, and third down-sampled bits. A detector circuit is configured to generate a detection signal indicating a presence of a short pulse within the samples when the state indicates the clock transition and the second and third down-sampled bits are equal and differ from the first down-sampled bit and the third sample. A generator circuit is configured to generate a fourth down-sampled bit that equals the third sample when the detection signal indicates the presence of the short pulse, and that equals the second sample when the detection signal does not indicate the presence.