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
Related news articles
Systems and methods for vehicle cruise control
Process and apparatus for producing composite material that includes carbon nanotubes
Low drop-out regulator providing constant current and maximum voltage limit
Methods and systems for sending messages regarding an emergency that occurred at a facility
Information processing apparatus and power supply controlling method
System for providing access to playable media
  Randomly Featured Patents
Centralized lottery system for remote monitoring or operations and status data from lottery terminals including detection of malfunction and counterfeit units
Forgery-proof information carrier
Hydraulic apparatus for industrial vehicle
High capacity rechargeable cell having manganese dioxide electrode
Sword blade
Print control apparatus for printing pages having different page sizes using one or more of a plurality of same-sized page buffers
Cardiotonic heterocyclocarbonyl- and acetyl-thiazolones
Isolation of multi-lineage stem cells
Method for hydrocyanation
Method of constructing layered glass display panels