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. 08, 2019
Filed:
Jun. 15, 2018
Qualcomm Incorporated, San Diego, CA (US);
Sean Baker, San Diego, CA (US);
Dinesh Jagannath Alladi, San Diego, CA (US);
Balasubramanian Sivakumar, San Diego, CA (US);
Kentaro Yamamoto, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An example apparatus is disclosed for alias rejection through charge sharing. The apparatus includes a filter-sampling network, a digital-to-analog converter, and a charge-sharing switch. The filter-sampling network includes a capacitor and a first switch, which is coupled between an input node and the capacitor. The filter-sampling network is configured to connect or disconnect the capacitor to or from the input node via the first switch. The digital-to-analog converter includes a capacitor array and a second switch, which is coupled between the input node and the capacitor array. The capacitor array is coupled between the second switch and a charge-sharing node. The digital-to-analog converter is configured to connect or disconnect the capacitor array to or from the input node via the second switch. The charge-sharing switch is coupled between the charge-sharing node and the capacitor and is configured to connect or disconnect the capacitor to or from the digital-to-analog converter.