Owner Zipit Wireless, Inc.

Inventors Heredia, Rafael; Dean, Michael P.; Greer, Frank U.

Agent Callinan

Pub. Number AU-B-2005251096

PCT Pub. Number WO2005/119948

Priority 10/846,236 14.05.04 US

Filing date 5 May 2005

Wipo publication date 15 December 2005

Acceptance publication date 29 October 2009

H04B 7/00 (2006.01) Radio transmission systems, i.e. using radiation field

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

H04B 1/38 (2006.01) Details of transmission systems, not covered by a single one of groups - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving

H04L 12/58 (2006.01) Data switching networks - Message switching systems

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

H04L 29/08 (2006.01) Arrangements, apparatus, circuits or systems, not covered by a single one of groups - Transmission control procedure, e.g. data link level control procedure

H04M 1/00 (2006.01) Substation equipment, e.g. for use by subscribers

H04M 1/66 (2006.01) Substation equipment, e.g. for use by subscribers - with means for preventing unauthorised or fraudulent calling

H04M 1/68 (2006.01) Substation equipment, e.g. for use by subscribers - Circuit arrangements for preventing eavesdropping

H04M 3/16 (2006.01) Automatic or semi-automatic exchanges - with lock-out or secrecy provision in party-line systems

H04M 3/42 (2006.01) Automatic or semi-automatic exchanges - Systems providing special services or facilities to subscribers

H04L 12/28 (2006.01) Data switching networks - characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]