Resources Contact Us Home
Close proximity transmitter interference limiting

Image Number 10 for United States Patent #6473596.

A weaker signal receiving system inclusive of stronger nearby-sourced interference signal cancellation capability. Stronger interference signal cancellation is accomplished by actively canceling or subtracting from the received signal an intermediate signal in which the weaker signal has been attenuated but the stronger signal remains. Attenuation of the weaker signal in this intermediate signal is accomplished in a feedback loop arrangement by an amplitude-responsive signal processing element embodied from for example a ferrite material such as yttrium iron garnet disposed in a physical wave propagating and wave amplitude sensitive film. The cancellation or subtracting is accomplished using received signals and without need for a direct output sample of the stronger signal at its source. Military aircraft use of the disclosed system in the microwave and other spectral regions with transmission mode as opposed to reflection mode signal amplitude discrimination by the ferrite device is included.

  Recently Added Patents
Lubricant composition
Calibration of quadrature imbalances using wideband signals
Synthetic refrigeration oil composition for HFC applications
Method and apparatus for allocating and obtaining IP address
Off-line converter with digital control
Control system for an internal combustion engine
Multi-radio coexistence
  Randomly Featured Patents
Method for rule compliance situation checking and related checking system
Lithographic process for device fabrication using dark-field illumination
Boutique wastebasket
Adjustable gain differential amplifier
Electrostatic image forming apparatus capable of reducing defective image transfer caused by free toner particles deposited on a corona discharger
Grease retainer and taper roller bearing having same
Snap-in conveyor slat wear plate
Method of separating a polymer from a solvent
System and method for securing web application code and verifying correctness of software