Resources Contact Us Home
Automatic gain control device

Image Number 4 for United States Patent #6903611.

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 control voltage. The second control loop receives the first control voltage, digitizes the first control voltage, and outputs a second control voltage by a DAC. The multiplexer chooses the first control voltage or the second control voltage as a gain control voltage according to a hold signal. Because the second control loop digitizes and holds the first control voltage and output the second control voltage from the DAC, the gain control voltage can be held constant for a long time without being influenced by leakage current.

  Recently Added Patents
High-performance AHCI interface
Apparatus for preventing overcharge of a battery
Depth estimation apparatus and method
Reserving a time block in a calendar application to account for a travel time between geographic locations of appointments
Optoelectronic devices and a method for producing the same
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
Potentiometric-sensor chip, potentiometric assay, and assay kit
  Randomly Featured Patents
Stator lead retainer device
Rotating drum food processor with cleaning spray accessible panels
Redundant ignition system for internal combustion engine
Semiconductor device and electronic instrument
Method for manufacturing solar battery
Wine rack
Combined cuff and weighted case for attachment to persons released on bail
Magnetic head suspension
Ergonomic housing for a computer mouse
Valve assembly with relief groove