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
Multi-purpose plectrum
Organic light emitting display comprising a sink current generator that generates an initialization current corresponding to bit values of initialization data
Active device array substrate
Systems and processes for producing biofuels from biomass
System and method of mapping customer premise equipment in a VOD system of a cable service provider
Method and device to treat kidney disease
Liquid crystal display device having an outer-side optical member and a backlight-side optical member
  Randomly Featured Patents
Turbofan engine construction
Simplified process for the production of polyamines by the alkaline hydrolysis of compounds containing NCO-groups
Method and device for applying images on a beverage can lid
Finger ring
Thermally stable polymers, method of preparation, and articles made therefrom
Closed loop spindle motor acceleration control in a disc drive
Ergonomic grip for hand instruments
Hair cutter
Display device using electron source elements and method of driving same
Plasma display panel arranged with auxiliary electrode