US 8,543,623 B2 · Secure distribution of media data

Abstract

A technique for playing a media file by a data processing system. A degraded initial version of the media file is received from a sending data processing system. A supplemental version of the media file is received from the sending data processing system. The degraded version of the media file is merged with the supplemental version of the media file to form a combined media file, with the combined media file being played. In one embodiment, the degraded version of the media data has a reduced quality that is obtained by removing portions of the data and filling in the removed portions with dummy data. During a subsequent rebuilding of the media data by the receiving/recipient data processing system, a supplemental version of the media data is received and merged/combined with the degraded version to form a copy that corresponds to the original, high-quality version of the media data.

Claims24

Dependent claims

A method for playing a media file by a data processing system, comprising steps implemented by the data processing system of:

receiving a degraded initial version of the media file from a sending data processing system;
sending at least a portion of the degraded initial version of the media file to the sending data processing system to confirm successful receipt of the degraded initial version of the media file at the data processing system;
receiving a supplemental version of the media file from the sending data processing system as a result of the sending data processing system having confirmed an identity of a recipient of the degraded initial version of the media file at the data processing system;
merging the degraded version of the media file received from the sending data processing system with the supplemental version of the media file received from the sending data processing system to form a combined media file;
and
playing the combined media file by the data processing system.

3 more elements

A data processing system for playing a media file, the data processing system comprising:

a central processing unit (CPU), a computer readable memory, and a computer readable storage media;
first program instructions to receive a degraded initial version of the media file from a sending data processing system;
second program instructions to send at least a portion of the degraded initial version of the media file to the sending data processing system to confirm successful receipt of the degraded initial version of the media file at the data processing system;
third program instructions to receive a supplemental version of the media file from the sending data processing system as a result of the sending data processing system having confirmed an identity of a recipient of the degraded initial version of the media file at the data processing system;
fourth program instructions to combine the degraded version of the media file received from the sending data processing system with the supplemental version of the media file received from the sending data processing system to form the media file;
and
fifth program instructions to play the media file by the data processing system.

4 more elements

Dependencies are inferred from the claim text.

Secure distribution of media data

Life of this patent

Secure distribution of media data

Life of this patent

Abstract

Claims24