IP Library Granted Patent US 7,925,897
Granted Patent B2
US 7,925,897 · App. 11/240,534 · Granted Apr 12, 2011

System, method and apparatus for controlling the dissemination of digital works

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,925,897
App. No.
11/240,534
Granted
Apr 12, 2011
Kind
B2
Abstract

A system, business methodology and apparatus for facilitating controlled dissemination of digital works is disclosed. An audio and video organizer, entertainment, and communication unit that plays back audio and video media content received from a central storage server. The unit relies on a smartcard, which has a personalized key that unlocks encrypted content. Using the unit, a user can purchase music or other types of media using a appropriate ordering method. The central storage server then transmits a double-encrypted, compressed audio file to the unit, where it is decrypted based on the smartcard key, and available for listening.

Claims (15)

1. A method for providing digital media files, said method comprising the steps of:

receiving from a user two encryption keys;

double encrypting digital media files based on said two encryption keys; and

transmitting to said user the encrypted digital media files,

wherein a first of said encryption keys is associated with said user and the second of said encryption keys is associated with a user device to which said encrypted digital media files are transmitted.

2. The method according to claim 1 , wherein said receiving step further comprises the step of:

receiving identification of said digital media files.

3. The method according to claim 1 , further comprising, prior to said transmitting step, the step of:

storing said encrypted digital media files in a staging server, said digital media files awaiting a connection by said user to be transmitted.

4. The method according to claim 1 , further comprising, prior to said step of transmitting, the steps of:

encoding said digital media files; and

compressing said digital media files.

5. The method according to claim 1 , wherein said step of encrypting comprises:

performing a first encryption operation on said digital media files based upon a first of said encryption keys; and

performing a second encryption operation on said digital media files based upon a second of said encryption keys.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2014
From: DUAL DIGITAL MEDIA LLC
To: NAIR, MARK
Reel/Frame 034167/0475 →
CHANGE OF NAME Recorded May 23, 2013
From: QXZEB LLC
To: DUAL DIGITAL MEDIA LLC
Reel/Frame 030488/0434 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2012
From: NAIR, MARK
To: QXZEB LLC
Reel/Frame 029203/0272 →
Continuity (3)
Continuation 09810957 · Mar 16, 2001
Provisional Application 60190268 · Mar 17, 2000
Related Publication 20060080741A1 · Apr 13, 2006