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:
Apr. 28, 2020
Filed:
Jun. 28, 2016
Qorvo International Pte. Ltd., Singapore, SG;
Andrew Fort, Kessel Lo, BE;
Qorvo International PTE. LTD., Singapore, SG;
Abstract
Method and receiver for acquiring a data packet in a signal transmission like Bluetooth Low Energy (BLE), wherein the data packet comprises a preamble code () followed by an access code () and has a symbol period. The following steps are executed: —executing a preamble correlation () continuously on a received signal () using the preamble code (); —determining a frequency estimate () and a timing estimate () from the preamble correlation (); —using the frequency estimate () to execute a frequency correction () on the received signal; —performing an access code correlation () on the frequency corrected received signal, in parallel with the continuous execution of the preamble correlation (); and —detecting a data packet () when the access code correlation () is higher than a predetermined access code threshold () at an expected time relative to the timing estimate (). Thereby packet loss due to false detection is minimized since the preamble correlation is continuously performed even when peaks are detected. Furthermore the frequency estimate obtained from the preamble correlation is used to reduce the complexity of the access code correlation.