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:
May. 30, 2017
Filed:
Jun. 02, 2015
Microsemi Storage Solutions (U.s.), Inc., Aliso Viejo, CA (US);
Michael Ben Venditti, Montreal, CA;
Vadim Milirud, Vancouver, CA;
Microsemi Storage Solutions (U.S.), Inc., Aliso Viejo, CA (US);
Abstract
The present disclosure provides a means to adjust the relative location of output rising and falling transitions to reduce single-ended duty cycle distortion (DCD) effects in the output data stream originating from the transmitter data path. This serves to improve high-speed single-ended signal characteristics and reduce electromagnetic interference (EMI). Another feature enabled by embodiments of the present disclosure is polarity skew (also referred to as differential skew) reduction between transmitter outputs. In an embodiment, the disclosed method and apparatus for transmitter data path single-ended DCD correction describes a closed-loop calibration system including the actuation apparatus within the transmitter, a sensing block at the output of the transmitter to measure the amount of single-ended DCD, and a calibration block operating on the sensor output to devise correction control inputs to the actuator in the transmitter to correct the data path single-ended DCD present.