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. 09, 1999
Filed:
Oct. 27, 1997
Richard J Wangler, Maitland, FL (US);
Other;
Abstract
A time measurement device useful with laser range cameras and time-of-flight measuring methods includes a light transmitter responsive to start and stop signals for transmitting the light during a time interval to be measured, and a light receiver for receiving the light and for providing an output signal related to an exposure of the light during the time interval time between start and stop signals to the transmitter The output signal thus providing a measurement of the time between the start and the stop signals. The transmitter includes a light emitting diode to which an electrical current is provided for generating a constant output light source for the transmitter. The light receiver includes charged coupled devices (CCD) having a linear response to an amount of exposure to the light received from the light transmitter. As a result, the CCD provides the output signal in a linear relationship to the amount of exposure to the light, and thus a measurement of the time interval.