System and method for digital electronic cinema delivery

• US 6,141,530 A
• Filed: 06/15/1998
• Issued: 10/31/2000
• Est. Priority Date: 06/15/1998
• Status: Expired due to Term

• Current Assignee: Multi Dimensional Digital, LLC
• Original Assignee: Digital Electronic Cinema, Inc.
• Inventors: Rabowsky, Irving
• Primary Examiner(s): Faile, Andrew I.
• Assistant Examiner(s): Huang, Sam
• Application Number:
  US09/094,615
• Time in Patent Office: 869 Days
• Field of Search: 455/3.1, 455/4.2, 709/217, 348/436, 348/13
• US Class Current: 725/116
• CPC Class Codes: H04N 7/17345 Control of the passage of the selected programme

Abstract

A novel system and method for secure electronic delivery of motion pictures in digital format to many end users simultaneously. In particular, the system comprises a headend system and a theater system. The headend system comprises a baseband processing system which receives analog cinema film as input, a storage system which receives digitized cinema files from the baseband processing system, a radio frequency transmission system which communicates cinema and data files to and from various users as a radio frequency bit stream, and a management system which controls transmission and storage of cinema and data files. The theater system comprises transmission line interfaces at theaters designated to receive cinema and data files from the headend system, receiver-decoders which receive the radio frequency bit stream and produce decoded cinema and data files at baseband, storage playback systems which stores cinema and data files until needed, secure projector systems which playback cinema files, an automation/scheduling system which directs playback of cinema files in the secure projector systems as authorized by the management system, and a reverse channel which provides data back to the headend system from the theaters. A preferred version of the present invention further comprises a creator/editor'"'"'s system which allows authorized viewing and editing of cinema files by creators and editors. The creator/editor'"'"'s system provides capability for editing and baseband processing of cinema files at remote locations, and transmits edited cinema files back to the headend system.

Claims

1. A system for delivery of digital electronic cinema to a plurality of users including theaters, comprising:

a headend system comprising a baseband processing system which receives analog cinema film as input, a storage system which receives digitized cinema files from the baseband processing system, a radio frequency transmission system which communicates cinema and data files to various users including theaters as radio frequency bit stream, and which further communicates data from said users, and a management system which controls transmission and storage of cinema and data files;

a theater system comprising transmission line interfaces at theaters designated to receive cinema and data files from the headend system, receiver-decoders which receive the radio frequency bit stream and produce decoded cinema and data files at baseband, a storage playback system which stores cinema and data files until needed, and a secure projector including a decryptor for playing back encrypted cinema files;

an editor'"'"'s system which allows authorized viewing and editing of cinema files, wherein the editor'"'"'s system provides capability for editing and baseband processing of cinema files at remote locations, and transmits edited cinema files back to the headend system.

2. The system of claim 1, wherein the editor'"'"'s system comprises a second receiver-decoder which decompresses motion picture image files which were compressed using lossless or lossy compression algorithms, a high capacity storage playback system, and a workstation for reviewing and editing cinema files received from the headend system.

3. The system of claim 1, wherein the editor'"'"'s system transmits edited cinema files back to the headend system utilizing a subsystem comprising a baseband processing system, a modulator/tuner, and a satellite uplink transmission system.

4. The system of claim 1, wherein edited cinema files transmitted by the editor'"'"'s system are received by a headend subsystem comprising a satellite downlink system, a demodulator, a receiver-decoder, and stored in the storage archiving system.

5. A method for delivers of digital electronic cinema, comprising the steps of:

transferring a motion picture image to a digital signal in a digital format which is of substantially the same visual quality as the motion picture image in its original form; and

transmitting the cinema in the digital format, wherein the cinema is received by a plurality of end users according to a security scheme, and the step of transmitting the cinema includes allowing authorized viewing and editing of cinema files by creators and editors at remote business locations.