Information distribution and processing system
OwnerHark C. Chaninventor
Life of this patent
Estimating the term…
Abstract
Digital information is separated into two portions. The first portion is a clear portion and the second portion is encrypted. The clear portion and an identification label are distributed to a plurality of processing units. Some of the processing units send the identification label to a remote station and receive the encrypted portion. They decrypt the received encrypted portion and combine the decrypted data with the clear portion to generate a graphic image. In another embodiment, the first portion can also be encrypted at a different level of security as the second portion.
Claims23
A method for generating graphic images by a plurality of processing units, each of said processing units being located in a separate remote site and connected to an output unit, each of said plurality of processing units connectable to a remote station via a first communication link, said method comprising the steps of:
- distributing a first set of digital data to each of said plurality of processing units, said first set of digital data being unencrypted and comprising a content portion and an identification label;
- processing said first set of digital data by at least two of said plurality of processing units, further comprising the following steps performed by each of said at least two processing units:
- separating said first set of digital data into said content portion and said identification label;
- sending said identification label to said remote station using said first communication link;
- receiving a second set of digital data from said remote station using said first communication link, said second set of digital data being encrypted;
- decrypting said second set of digital data to generate a third set of digital data;
- generating a graphic image using said content portion and said third set of digital data;
- and
- delivering said graphic image to said output unit;
- and
- performing by said remote station the following steps:
- receiving said identification label;
- retrieving said second set of digital data in response to said identification label;
- and
- transmitting, using said first communication link, said second set of digital data to said at least two processing units.
A method for generating graphic images by a plurality of processing units, each of said processing units being located in a separate remote site and connected to an output unit, each of said plurality of processing units connectable to a remote station via a first communication link, said method comprising the steps of:
- distributing a first set of digital data to each of said plurality of processing units, said first set of digital data comprising a content portion and an identification label, said first set of digital data being encrypted in a first level;
- processing said first set of digital data by at least two of said plurality of processing units, further comprising the following steps performed by each of said at least two processing units:
- decrypting said first set of digital data to obtain said content portion and said identification label;
- sending said identification label to said remote station using said first communication link;
- receiving a second set of digital data from said remote station using said first communication link, said second set of digital data being encrypted in a second level;
- decrypting said second set of digital data to generate a third set of digital data;
- generating a graphic image using said decrypted first set of digital data and said third set of digital data;
- and
- delivering said graphic image to said output unit;
- and
- performing by said remote station the following steps:
- receiving said identification label;
- retrieving said second set of digital data in response to said identification label;
- and
- transmitting, using said first communication link, said second set of digital data to said at least two processing units.
Dependencies are inferred from the claim text.