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:
Jul. 16, 2013
Filed:
Jan. 18, 2011
BO Yang, Austin, TX (US);
Bo Yang, Austin, TX (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An integrated circuit for a half cycle delay locked loop is disclosed. The integrated circuit includes an input node coupled to an oscillator having a clock cycle of M. The integrated circuit also includes N delay elements outputting N different phase-shifted signals, where a total delay introduced by the N delay elements is M/2. The integrated circuit also includes a plurality of inverters, each coupled to an output of one of the N delay elements, where the plurality is less than N. The integrated circuit also includes a phase detector coupled to the input node and an inverted Nth phase-shifted signal. The integrated circuit also includes a charge pump coupled to the phase detector and the delay elements.