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:
Mar. 05, 2013
Filed:
Jun. 26, 2012
Ashoke Ravi, Hillsboro, OR (US);
Ofir Degani, Haifa, IL;
Hyung Seok Kim, Portland, OR (US);
Hasnain Lakdawala, Portland, OR (US);
Yee W. LI, Hillsboro, OR (US);
Paolo Madoglio, Beaverton, OR (US);
Ashoke Ravi, Hillsboro, OR (US);
Ofir Degani, Haifa, IL;
Hyung Seok Kim, Portland, OR (US);
Hasnain Lakdawala, Portland, OR (US);
Yee W. Li, Hillsboro, OR (US);
Paolo Madoglio, Beaverton, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Disclosed is a method and apparatus to extend TDC resolution to better than 1 ps without incurring a matching and power penalty. Higher resolution can be achieved by segmenting the resolution between a mismatch free re-circulating time-to-digital converter (RTDC) and a stochastic time-to-digital converter (STDC). The disclosed RTDC replicates the same delay element to eliminate mismatch with the required dynamic range (200 ps for a 5 GHz example) and moderate resolution (3-5 ps typical corresponding to 6-7 bits for the 5 GHz case). While the STDC can achieve a resolution of 50 fs but with a range of only 3-5 ps which also corresponds to approximately 6-7 additional bits by exploiting process variations and mismatch to achieve a very fine resolution with limited dynamic range.