US 12,249,263 B2
Derivative-based encoding for scanning mirror timing
Christopher Michael Babecki, Seattle, WA (US); Ryan Scott Haraden, Duvall, WA (US); and Jingyang Xue, Sunnyvale, CA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Jan. 12, 2022, as Appl. No. 17/647,762.
Application 17/647,762 is a continuation of application No. 16/998,511, filed on Aug. 20, 2020, granted, now 11,227,520.
Prior Publication US 2022/0139281 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/02 (2006.01); G02B 26/10 (2006.01); H03M 7/40 (2006.01)
CPC G09G 3/025 (2013.01) [G02B 26/101 (2013.01); H03M 7/40 (2013.01); G09G 2310/08 (2013.01); G09G 2350/00 (2013.01); G09G 2370/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. On a scanning mirror display system, a method of communicating timing information for light samples that are scanned to form a displayed image, the method comprising:
for a line of light samples, receiving via a communications channel intensity information and encoded first timing information for a first light sample of the line of light samples, the encoded first timing information encoded via a first, greater number of bits;
decoding the encoded first timing information to form decoded timing information for the first light sample;
receiving via the communications channel intensity information and encoded timing information for a subsequent light sample of the line of light samples, the encoded timing information for the subsequent light sample encoded via a second, lesser number of bits; and
decoding the encoded timing information for the subsequent light sample by decoding the encoded timing information of the subsequent light sample to form decoded timing information for the subsequent light sample, and computing an anti-derivative based upon the decoded timing information of the subsequent light sample, the anti-derivative indicating a timing of the subsequent light sample compared to a prior light sample.