Patent · US Active

Method and apparatus for key distribution for secure digital cinema presentations

US9002017B2 · kind B2 · utility

1Cited by

6References

20Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Mark Leroy Walker · Castaic, US
Suqing Li · Valencia, US
William Gibbens Redmann · Glendale, US

Key dates

Filing date	Sep 7, 2006
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Jun 28, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/6581
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Key distribution within a digital cinema presentation facility (140) occurs according to a retrieval process (200, 300) that provides for automatic retrieval at a scheduled time. The process further includes redundant mechanisms to transfer the necessary keys, in different ways to enable theater personnel to obtain the required key in a variety of different ways.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.