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. 23, 2013
Filed:
Aug. 26, 2009
Ashish Ahuja, Los Angeles, CA (US);
Avraham Caspi, La Jolla, CA (US);
Jessy Dorn, Los Angeles, CA (US);
Robert J. Greenberg, Los Angeles, CA (US);
Kelly H. Mcclure, Simi Valley, CA (US);
Matthew J. Mcmahon, Washington, DC (US);
Devyani Nanduri, Los Angeles, CA (US);
Ashish Ahuja, Los Angeles, CA (US);
Avraham Caspi, La Jolla, CA (US);
Jessy Dorn, Los Angeles, CA (US);
Robert J. Greenberg, Los Angeles, CA (US);
Kelly H. McClure, Simi Valley, CA (US);
Matthew J. McMahon, Washington, DC (US);
Devyani Nanduri, Los Angeles, CA (US);
Second Sight Medical Products, Inc., Sylmar, CA (US);
Abstract
This system gives the experimenter great flexibility to present spatio-temporal stimulation patterns to a subject. A video configuration file (VCF) editor allows the experimenter to determine the electrical stimulation parameters for each electrode. A Pattern Stimulation software program allows direct stimulation of chosen patterns of electrodes, scaled by the subject's VCF, through a Graphical User Interface. The subject then responds by drawing the outline of the phosphene he or she perceives on a touchscreen. The Pattern Stimulation program saves all of the trial parameters and the parameters of an ellipse fit to their drawing, as well as a raw data file containing the input to the touchscreen is saved. After the experiment, offline image analysis can be performed to obtain a detailed quantitative description of the subject's percepts. Image descriptors can assigned to the touchscreen data; these image descriptors can be used to make formalized comparisons between various experimental conditions. Various types of image descriptors can be used, including simple ellipse fitting, projections of the 2-D drawings onto one-dimensional axes, calculations of Hu moments, PCA, and ICA.