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










Image Number 13 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
Method for counting and segmenting viral particles in an image
Bacterial superantigen vaccines
Flashlight
Bi-directional switch using series connected N-type MOS devices in parallel with series connected P-type MOS devices
Method and system for blocking hazardous information
Method and apparatus for allocating and obtaining IP address
Methods for non-linear image blending, adjustment and display
  Randomly Featured Patents
Vacuum foam remover
Magazine disconnect safety
Aromatic polyamide resin composition for compression molding
Lamp with two internal capsules
Magnetic head, method of manufacturing magnetic head and information recording apparatus
Top drive with shaft seal isolation
Method of correcting for phase error induced by a down sampling routine
Intravascular heat exchange catheter with insulated coolant tubes
Method and arrangement for noise variance and SIR estimation
Vacuum cleaners with self-cleaning filtration, and other self-cleaning filters