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:
Feb. 24, 2015
Filed:
Jun. 11, 2008
Mark V. Weckwerth, Pleasanton, CA (US);
Harvey I. Liu, Fremont, CA (US);
Tobin C. Island, Oakland, CA (US);
Robert E. Grove, Pleasanton, CA (US);
Mark V. Weckwerth, Pleasanton, CA (US);
Harvey I. Liu, Fremont, CA (US);
Tobin C. Island, Oakland, CA (US);
Robert E. Grove, Pleasanton, CA (US);
Tria Beauty, Inc., Dublin, CA (US);
Abstract
An automated test system for testing devices being manufactured comprises an infrared communications link for free space communications between a host and a device under test. The communications link is asymmetric and instructions from the host are acknowledged by the device. The instructions cause the device to operate, and the output of the device is monitored, logged, and compared to acceptance criteria. The host can then generate calibration messages to the device, to change the device operating characteristics as appropriate. The communications link uses an unmodulated data stream together with asynchronous handshaking and a robust checksum algorithm to ensure accurate communication.