Resources Contact Us Home
Gain control method and apparatus

Image Number 4 for United States Patent #8098742.

An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.

  Recently Added Patents
Signal routing dependent on a loading indicator of a mobile node
Plural component proportioner
Position-measuring device
Computer device with digitizer calibration system and method
Pet fish burial pod
Generating agricultural information products using remote sensing
Power transmission control device for vehicle
  Randomly Featured Patents
Managing automated resource provisioning with a workload scheduler
Kalanchoe plant named Bingo
Grinding and polishing apparatus
Optical semiconductor-sealing composition
Broadcast design for provisioning reconfigurable optical add/drop multiplexer circuits
Animal model for hepatitis virus infection
Arrangement for cabs for vehicles
Metal air-bag
Multiple input silent audio switch
Piezoelectric vibratory gyroscope utilizing an energy-trapping vibration mode