Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Multiple partial encryption










Image Number 3 for United States Patent #7760879.

A method of encrypting a digital television signal carried out in any operative order involves duplicating packets in the digital television signal so as to create first and second duplicate packets; encrypting the first duplicate packets according to a first encryption method to create first encrypted packets; encrypting the second duplicate packets according to a second encryption method to create second encrypted packets; identifying packets in the digital television signal that are of a packet type, while other packets are not of the packet type; replacing the identified packets in the digital television signal with corresponding first and second encrypted packets to produce a multiple partially encrypted digital television signal comprising the other packets that are unencrypted and the first and second encrypted packets; and distributing the multiple partially encrypted digital television signal. This abstract is not to be considered limiting as other embodiments may include more or fewer or differing elements than appear in the abstract.








 
 
  Recently Added Patents
Ventilated vacuum commutation structure
Method for providing interactive site map
Method of enhancing corrosion resistance of hollow vessels
Pressure-applying member, fixing device, and image forming apparatus
System and method for backup communication over ethernet
Escutcheon
DL control channel structure enhancement
  Randomly Featured Patents
Method and apparatus for separating elastomeric particulates and fibers from a pulverized mixture
Method of communications between telephone and facsimile apparatus and facsimile apparatus capable of communications with telephone
Hermetic terminal with terminal pin assemblies having fusible links and motor compressor unit including same
Temperature compensating compact voltage regulator for integrated circuit device
Method of suppressing benzodiazepine induced sedation with 2-(p-methoxypenyl)-pyrazolo[4,3-c]quinolin-3(5H)-one or a salt thereof
Wall element with a curtain clasp
Toothbrush and toothpaste tube case
Method to make snow for insect control and device for making the same
Implantable device using ultra-nanocrystalline diamond
Versatile camp grill