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
Mobile phone film positioner and a mobile phone film with positioning structure
Telecommunications network
Communication system, communication device, and management server device
Two-port memory implemented with single-port memory blocks
Digital-to-analog converter (DAC) current cell with shadow differential transistors for output impedance compensation
Apparatus for broaching repair of turbine rotor steeples
Laser leveling apparatus
  Randomly Featured Patents
Apparatus for wiping
High density high strength S13 N4 ceramics prepared by pressureless sintering of partly crystalline, partly amorphous S13 N4 powder
Vehicle wheel
Method of manufacturing thyristor with integrated power supply for an associated circuit
Locking mechanism, systems and methods for cargo container transport security
Sensor signal transmission from processing system
Pressurized fluid distribution system for beverage dispensing
Apparatus for and method of shredding a product
Fire-extinguishing system in an air filter system and method therefor
Multiple utility ribbon cable