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:
Nov. 09, 2010
Filed:
Apr. 29, 2003
Andrew Griffis, Tucson, AZ (US);
Gregory Fetzer, Tucson, AZ (US);
Brian Redman, Silver Spring, MD (US);
David Sitter, Torrance, CA (US);
Asher Gelbart, Tucson, AZ (US);
Andrew Griffis, Tucson, AZ (US);
Gregory Fetzer, Tucson, AZ (US);
Brian Redman, Silver Spring, MD (US);
David Sitter, Torrance, CA (US);
Asher Gelbart, Tucson, AZ (US);
Areté Associates, Northridge, CA (US);
Abstract
A lidar pulse is time resolved in ways that avoid costly, fragile, bulky, high-voltage vacuum devices—and also costly, awkward optical remappers or pushbroom layouts—to provide preferably 3D volumetric imaging from a single pulse, or full-3D volumetric movies. Delay lines or programmed circuits generate time-resolution sweep signals, ideally digital. Preferably, discrete 2D photodiode and transimpedance-amplifier arrays replace a continuous 1D streak-tube cathode. For each pixel a memory-element array forms range bins. An intermediate optical buffer with low, well-controlled capacitance avoids corruption of input signal by these memories.