Owner Microsoft Corporation

Inventors Adent, Daniel; Strom, Clifford P.; West, Cory; Crites, Brian D.; Dublish, Pratul

Agent Davies Collison Cave

Pub. Number AU-B-2003244037

Priority 10/235587 04.09.02 US

Filing date 1 September 2003

Wipo publication date 18 March 2004

Acceptance publication date 11 December 2008

G06F 12/14 (2006.01) Accessing, addressing or allocating within memory systems or architectures - Protection against unauthorised use of memory

G06F 1/00 (2006.01) Details not covered by groups and

G06F 9/06 (2006.01) Arrangements for programme control, e.g. control unit - using stored programme, i.e. using internal store of processing equipment to receive and retain programme

G06F 13/00 (2006.01) Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units

G06F 15/16 (2006.01) Digital computers in general - Combinations of two or more digital computers each having at least an arithmetic unit, a programme unit and a register, e.g. for a simultaneous processing of several programmes

G06F 17/00 (2006.01) Digital computing or data processing equipment or methods, specially adapted for specific functions

G06F 17/30 (2006.01) Digital computing or data processing equipment or methods, specially adapted for specific functions - Information retrieval

G09C 1/00 (2006.01) Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system

G11C 27/02 (2006.01) Electric analogue stores, e.g. for storing instantaneous values

H04L 9/00 (2006.01) Arrangements for secret or secure communication

H04L 9/32 (2006.01) Arrangements for secret or secure communication - including means for verifying the identity or authority of a user of the system

H04L 12/24 (2006.01) Data switching networks - Arrangements for maintenance or administration

H04L 12/56 (2006.01) Data switching networks - Packet switching systems

H04L 29/06 (2006.01) Arrangements, apparatus, circuits or systems, not covered by a single one of groups - characterised by a protocol

H04N 7/16 (2006.01) Television systems - Secrecy systems