Resources Contact Us Home
Automatic gain control device

Image Number 3 for United States Patent #6816013.

An automatic gain control device without being influenced by leakage current of a capacitor. The automatic gain control device includes a first control loop, a second control loop, and a multiplexer. The first control loop receives an input voltage and generates a first AGC voltage accordingly. The second control loop receives the first AGC voltage, registers the first AGC voltage as digital data, and outputs a second AGC voltage by a DAC. The multiplexer chooses the first AGC voltage or the second AGC voltage as an AGC voltage according to a hold signal. Because the second control loop registers the first AGC voltage in a digital format and output the second AGC voltage from the DAC, the AGC voltage can be held constant for a long time without being influenced by leakage current.

  Recently Added Patents
Amnion-derived cells, methods of making and uses thereof
Frame syncrhonization in orthogonal frequency-division multiplexing systems
Suspension with flexure having laminated structure and bonding pads on opposing surfaces thereof, and head gimbal assembly and disk drive unit with the same
Group control method for machine type communication and mobile communication system using the method
Power device and method of packaging same
CMOS image sensor
Potential separation for filling level radar
  Randomly Featured Patents
Static random access memory cell having buried sidewall capacitors between storage nodes
Electret filter media having an undulated surface
Method for enhancing mobility in a wireless mesh network
Optically transparent electrically conductive semiconductor windows
Shower head structure
Method of frying raw noodles in a perforated container
Method of removing micro-scratch on metal layer
Method for controlling operation of compressor and apparatus thereof
Ski carrier
Support for walking on tile roofs