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:
Oct. 06, 2009
Filed:
Jan. 30, 2008
Benjamin Esposito, Oviedo, FL (US);
Hong Shan Neoh, Princeton, NJ (US);
Benjamin Esposito, Oviedo, FL (US);
Hong Shan Neoh, Princeton, NJ (US);
Altera Corporation, San Jose, CA (US);
Abstract
A clock synthesis circuit includes a polyphase numerically controlled oscillator, an extraction circuit, and a clock signal generation circuit. The polyphase numerically controlled oscillator generates sets of periodic output signals. Each set of the periodic output signals represents a different phase of a periodic waveform signal. The extraction circuit extracts a most significant bit from each set of the periodic output signals of the polyphase numerically controlled oscillator to generate most significant bits. The clock signal generation circuit converts the most significant bits into a serial bit stream that serves as an output clock signal.