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
Resin composition and display device using the same
Base station device and wireless communication method
Electrode tab for secondary battery and secondary battery using the same
Method and system for triggering message waiting indicator delivery
Interactivity model for shared feedback on mobile devices
Imidazo[1,2-B]pyridazine and pyrazolo[1 .5-A]pyrimidine derivatives and their use as protein kinase inhibitors
Memory device having collaborative filtering to reduce noise
  Randomly Featured Patents
Chromium-based fluorination catalyst, process for producing the catalyst, and fluorination process using the catalyst
Process and a device for improved oxygenation of biological cultures
Float device with removable insert
Degaussing coil holder
Pilot director light utilizing light emitting diode (LED) technology
Pair of backpack straps
Methods and apparatus for conducting electronic transactions
Dispensing closure with spout vent
Reduced pin count scan chain implementation
Metal-air cathode button cell