Resources Contact Us Home
System and method for generating shaped noise

Image Number 4 for United States Patent #8130128.

In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The data generator includes a feedback loop with a transfer function, the output of which may be altered by limiter circuitry to increase stability of the data generator. The circuit device may further include, for example, a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. In such an example, the spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.

  Recently Added Patents
Media used in digital high speed inkjet web press printing
Equipment to facilitate money transfers into bank accounts
Method and apparatus for executing load distributed printing
Analysis device and an analysis apparatus using the analysis device
Fuel cell with air channel actuator
Processing abstract derived entities defined in a data abstraction model
  Randomly Featured Patents
Method of preparing halogenated nitroalcohols
Apparatus for controlling emissions of hydrogen sulfide from a system utilizing geothermal steam
Combined flag, mast and suction cup
Pneumatic tire with tread having good aqua-planing performance and good winter characteristics
Arrangement for and method of regenerating processing baths for photosensitive materials
Automatic gas injection fire extinguisher
Spray and foam producing nozzle apparatus
Flip phone having a hinge mechanism with an auto-lock function
Semiconductor device with external pins
Keyless entry system