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
Push mechanism for efficiently sending aggregated data items to client
Method of transmitting and receiving wireless resource information
LED lighting module
Crystalline form of zofenopril calcium
System and method for passing PLC signals from a first electrical line to a second electrical line
Handling errors in a data processing system
Apparatus and method for discharging capacitor of input filter of power supply, and power supply including the apparatus
  Randomly Featured Patents
Curtain rolling buffer apparatus
Power cutoff device
Emergency facility video-conferencing system
Pouch for storing electrical ties
Method of controlling impurity doping and impurity doping apparatus
Polyamide from 3,5-diamino-t-butylbenzene
Apparatus and method for processing bagged refuse
Wire grip hose clamp
Semi-solid biodegradable slug propulsion device
Process for preparing dihydrofuranone derivatives