Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
System and method for filtering electromagnetic and visual transmissions and for minimizing acoustic transmissions










Image Number 13 for United States Patent #6891667.

The invention describes a system and methods for filtering electromagnetic and visual transmissions and for minimizing acoustic transmissions. Various combinations of UV, IR, and yellow-tinted filters are applied in various physical configurations to a transparent substrate such as a plastic film or glazing of a window for modifying selected wavelengths of electromagnetic radiation. For instance a light filter may have a multi-layered metallic sputtered stack having a relatively low sheet resistance. The combination of filters prevents or attenuates the passage of selected wavelengths through the substrate as needed to address security risks. The combination of filters is useful to prevent unauthorized data collection and information exchange from or within buildings or otherwise prevent such unauthorized data collection and information exchange from, for example, computer monitors or screens, personal digital assistants, and local area networks.








 
 
  Recently Added Patents
Chemical method of making a suspension, emulsion or dispersion of pyrithione particles
Method for adjusting link speed and computer system using the same
ZNF217 a new prognostic and predictive biomarker of recurrent invasive and metastatic phenotypes in breast cancer
Catalysts for hydrodeoxygenation of polyols
Process for the production of alcohol
Wire catalyst for hydrogenation/dehydrogenation reaction and manufacturing method therefor
Cineole
  Randomly Featured Patents
Tag communication device and tag communication method
Method for controlling a compressed data buffer
Ornament retention system
Method and system for synchronous operation of linked command objects
Portable insect trap
Rail spill containment pan
Electronic apparatus including an analogue display device for displaying any position on a dial
Transfer apparatus
Program controlled unit including a segment pointer selecting a bootstrap loader to be booted from a plurality of stored bootstrap loaders
Faucet spout