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:
Apr. 03, 2012
Filed:
Mar. 22, 2010
Chiakang Sung, Milpitas, CA (US);
John Henry Bui, Sunnyvale, CA (US);
Khai Nguyen, San Jose, CA (US);
Bonnie I. Wang, Cupertino, CA (US);
Xiaobao Wang, Cupertino, CA (US);
Chiakang Sung, Milpitas, CA (US);
John Henry Bui, Sunnyvale, CA (US);
Khai Nguyen, San Jose, CA (US);
Bonnie I. Wang, Cupertino, CA (US);
Xiaobao Wang, Cupertino, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A dynamic phase alignment circuit includes a phase generator circuit having delay-locked loop circuits that generate periodic output signals. Each of the delay-locked loop circuits generates one of the periodic output signals in response to at least two periodic input signals. A multiplexer circuit selects a selected periodic signal from among the periodic input signals and the periodic output signals based on select signals. A phase detection circuit compares a phase of the selected periodic signal to a data signal to generate a phase detection signal. A control logic circuit generates the select signals. The control logic circuit adjusts the select signals based on changes in the phase detection signal to cause the multiplexer circuit to adjust the phase of the selected periodic signal.