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
Translucent internal graphics enhancement
Method for forming ventilation holes in an electrode plate
High voltage circuit for electrical stimulation
Resuming piecewise calibration of a real-time-clock unit after a measured offset that begins at the next calibration period
Storage apparatus and storage apparatus management method performing data I/O processing using a plurality of microprocessors
Semiconductor chip, stack module, and memory card
Video editing apparatus
  Randomly Featured Patents
Method and apparatus for providing passive force feedback to human-computer interface systems
Musical baby bottle adapter
Insulation product having nonwoven facing
Uninterruptible power supply for the backup of AC-power supply
Structure of a shade for a candle
Display assembly
Method for developing color reversal photographic materials
Programming environment system for customizing a program application based upon user input
Method of peptide synthesis
Spray closure with a push-pull seal