Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optical sensor device










Image Number 14 for United States Patent #8125620.

A method and apparatus for the acquisition of repetitive signals in a sensing device comprising a transmitter, a receiver and an object. The transmitter repetitively emits a modulated electro-magnetic signal into a transmission medium, with the emitted signal interacting with the object producing a counter propagating return signal. The return signal may contain properties that reflect all, or a portion, of the initial signal or may be correlated with said signal through a process of absorption and reemission, in which reflected signal characteristics are governed by the object's physical material characteristic. The return signal is detected and converted into digital signals by a receiver via a reception channel through the use of edge transitions rather than logic levels from one or more comparator outputs to reconstruct the return signal waveform. A several waveform acquisition and reconstruction methods are disclosed for use with an edge sampling detection apparatus. When directed towards the time-of-flight distance measurement the invention also discloses a useful method to provide optical feedback using a moving waveguide.








 
 
  Recently Added Patents
Process for preparing polyolefin
Logo toothbrush holder
Machining apparatus and method of making endodontic instruments
Image processing method
Semiconductor memory device and control method of the same
Toy snake
Collimating optical device and system
  Randomly Featured Patents
Electromagnetic energy adaptation material
Vacuum carbo-nitriding method
Device for fixing deflection yoke to Braun tube
Backlight assembly and display device having the same
Method for manufacturing dielectrics dividing wafer with isolated regions
Check valve
Fuel control system
Combined thermometer and calculator
Work transfer lock system and method thereof
Beam intensity measurement system for raster scanners