Resources Contact Us Home
Photodiode digitizer with fast gain switching

Image Number 4 for United States Patent #7365665.

An optical receiver and method of operating therfor. A photodiode converts a received optical signal to an electrical signal, which is provided to both high gain and low gain signal paths. First analog-to-digital converter ADC) circuitry is coupled to convert a high gain output signal into a first plurality of digital signals, while second ADC circuitry converts a low gain output signal into a second plurality of digital signals. A control unit is configured to monitor the amplitude of at least one of the low gain and high gain output signals. If the amplitude of the monitored signal falls below a predetermined threshold, the control unit is configured to select data provided by the first ADC circuitry. Otherwise, data provided by the second ADC circuitry is selected.

  Recently Added Patents
Processing biomass
Cell transport system comprising a homogeneous mixture of agarose and agarase
Digital X-ray detector arrangement and digital X-ray imaging method
Active element machine computation
Flood protection apparatus and container data center including the same
Image stabilization apparatus and image pickup apparatus
Automatic detection of image degradation in enhanced vision systems
  Randomly Featured Patents
Application/service event root cause traceability causal and impact analyzer
Coupling system between engine head, injector and fuel manifold
Motor control circuit with adaptive controller path selection for different load conditions
Dispenser pouch and holder and dispensing unit therefor
Combined regeneration heating and cooling system
Fuel feed and fuel vaporization system
Extension table assembly for table saws
Systems and methods for inter-object pattern matching
Substituted benzamides
Method and apparatus for controlling electrostatic coupling to plasmas