Resources Contact Us Home
Methods and apparatus for multi-level dynamic security system

Image Number 9 for United States Patent #7864959.

Methods and apparatus for converting original data into a plurality of sub-bands using wavelet decomposition; encrypting at least one of the sub-bands using a key to produce encrypted sub-band data; and transmitting the encrypted sub-band data to a recipient separately from the other sub-bands.

  Recently Added Patents
Switchgear and method for operating switchgear
Porous polymeric resins
Determination and presentation of package pricing offers in response to customer interest in a product
End to end email monitor
Image reading apparatus, image reading method and program
Water bottle warning triangle
Image stabilization
  Randomly Featured Patents
Substituted octahydropyrrolo[1,2-a]pyrazines as calcium channel blockers
Semiconductor device
Circuit interrupter including a current-limiting reactor
Arthroscopic fluid control device and method for controlling fluid flow in arthroscopic procedures
Method of power control for a wireless communication system having multiple information rates
Method for designing a tire and method for producing at least one tire
Electrochromic device
Portable tanker-trailer heating system
Print and correction ribbon drive system
Paper towel holder