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:
Jun. 07, 2011
Filed:
May. 07, 2007
Hung Jen (Henry) Wu, Cupertino, CA (US);
Yolin Lih, San Jose, CA (US);
Hung Jen (Henry) Wu, Cupertino, CA (US);
Yolin Lih, San Jose, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
A receiver circuit uses two or more comparators to detect the received data signal. Each comparator is set to compare the data signal to a different reference signal. The output signals of the comparators are received into a detector circuit, which provides a third output signal that establishes the logic state of the received signal based on whether or not the output signals of the comparators are equal. Depending on the logic state of the data signal, one of the comparators provides its output signal sooner than the other. Each comparator may be implemented by a differential amplifier. In one embodiment, the reference signals are threshold voltages which may be provided by the tripping voltages at the trip points for the logic HIGH and LOW states.