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. 01, 2024
Filed:
Jan. 21, 2022
SA Photonics, Inc., Los Gatos, CA (US);
Todd Matthew Drullinger, Redwood City, CA (US);
SA PHOTONICS, INC., Los Gatos, CA (US);
Abstract
A PPM-modulated signal is based on a format comprising (i) N data slots per symbol period, (ii) guard slots separating the data slots, and (iii) the symbols are encoded by the position of pulses within the data slots. Timing synchronization of the receiver to an incoming PPM-modulated signal is achieved as follows. The incoming PPM-modulated signal is processed to generate slot detection signals, which are indicative of a presence of a pulse in a corresponding one of the N data slots. A timing correction signal is generated based on a difference between (a) accumulated slot detection signals for receiver data slot, and (b) accumulated slot detection signals for receiver data slot N. Timing of the receiver is adjusted based on the timing correction signal.