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:
Jan. 28, 2014
Filed:
Jul. 21, 2011
Christian Hambeck, Gerersdorf, AT;
Stefan Mahlknecht, Vienna, AT;
Thomas Herndl, Biedermannsdorf, AT;
Franz Darrer, Graz, AT;
Jakob Jongsma, Graz, AT;
Christian Hambeck, Gerersdorf, AT;
Stefan Mahlknecht, Vienna, AT;
Thomas Herndl, Biedermannsdorf, AT;
Franz Darrer, Graz, AT;
Jakob Jongsma, Graz, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
One embodiment of the present invention relates to an analog correlation unit comprising a plurality of parallel correlation components configured to operating according to an advanced switched-capacitor low pass filter principle that increases coding gain of the unit. Each correlation component comprises a sampling stage and a correlation stage. The sampling stage may comprise a switched capacitor configured to sample a received baseband signal to determine a value (e.g., polarity) of the baseband signal. The sampled baseband signal is provided to the correlation stages, which may respectively comprise a plurality of switched integrators configured to selectively receive and integrate the sampled baseband signal over time depending upon values (e.g., polarity) of the correlation code to generate voltage potential values. The analog correlation result is evaluated by a comparison of an adjustable threshold voltage with the difference between the output voltage potential values.