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:
Jun. 21, 2022
Filed:
Dec. 04, 2019
Apple Inc., Cupertino, CA (US);
Christopher Hu, San Jose, CA (US);
Ahmed Rashid, San Francisco, CA (US);
Colleen F. Mischke, Sunnyvale, CA (US);
Peng Chen, Fremont, CA (US);
Talisa Mohammad Nejad, Cupertino, CA (US);
Xiao Hu, Cupertino, CA (US);
Yazan Z. Alnahhas, Mountain View, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
An optical module includes an enclosure and an optical output assembly mounted on the enclosure. An emitter mounted in the enclosure is configured to emit a beam of light toward the optical output assembly. A connector, which includes two conductive layers separated by a dielectric layer, has a first side connected to the enclosure and a second side connected to the optical output assembly. An electrical trace disposed on the enclosure is connected to the first side of the connector so as to define a test circuit having a capacitance. Control circuitry is coupled to sense the capacitance of the test circuit, and configured to inhibit operation of the emitter upon sensing a change in the capacitance that exceeds a predetermined threshold.