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.

Date of Patent:
Jun. 06, 2017

Filed:

Dec. 11, 2012
Applicant:

Dialog Semiconductor B.v., 's-Hertogenbosch, NL;

Inventors:

Wik Roovers, Prinsenbeek, NL;

Steven Leussink, Utrecht, NL;

Assignee:

Dialog Semiconductor B.V., 's-Hertogenbosch, NL;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/12 (2006.01); H04L 7/04 (2006.01); H03L 1/02 (2006.01); H03L 7/12 (2006.01); H04L 7/10 (2006.01);
U.S. Cl.
CPC ...
H04L 7/04 (2013.01); H03L 1/025 (2013.01); H03L 7/12 (2013.01); H04L 7/10 (2013.01);
Abstract

An automatic calibration of a clock of a wireless portable part with respect to a clock of a fixed part in a field environment. The calibration performed in the field environment negates the need to calibrate the clock during manufacture and negates the need for an initial field recalibration because of temperature differences between manufacture and the field. In performing the calibration the frequency of the clock of the portable part is varied until the portable part is synchronous with the fixed part to with in a range of timing bits. The portable part is declared calibrated after remaining calibrated for a defined number of data frames.


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