Vtech Telecommunications Limited

Gary Louie

Ralph Tischler

Holger Janssen

James Dury

Sean Wong

Bennett Cheng

Julian Lee

Chung Shing Lam

Kaz Kylheku

Supajet Guy Pothiboon

A distributed file management method for a multicell wireless communication network, including: monitoring a shared database to determine, for each wireless terminal of a set of wireless terminals: localization status information, version information of a stored file, and terminal type; updating the localization status information of the set when a new terminal localizes to the base station or a terminal in the set roams away from the base station; comparing, for each terminal of the set, the version information of the stored file and the terminal type to a version identifier and a file type, respectively, of an update file received by the base station to define a set of terminal update candidates; broadcasting the update file to corresponding ones of the set of terminal update candidates, based on a respective file type and a respective terminal type, to initiate an upgrade phase of each of the terminal upgrade candidates.

Systems and methods for managing file transfers and updates in a multicell network

A telecommunications system includes a base, a plurality of handsets, and a status database for storing status information. Each handset is localized to the base. The status information may be that of a first handset of the plurality of handsets. The base broadcasts to the plurality of handsets a status broadcast that includes the status information.

Wireless communications system and method

A cordless telephone base unit having a dynamically changeable cellular telephone adapter and partially reconfigurable software is provided. The software includes a static portion containing core application software, and a dynamic portion containing reconfigurable driver software for interfacing with an external device such as a cellular telephone. The driver software can be downloaded from a removable cellular telephone adapter. The core software and the driver software each contain interface portions at fixed locations. The interface portions provide for transparent interaction between core application and driver software.

Telephone base unit having dynamically configurable software

The present invention permits access to information stored on a remote device from a local device without requiring that a complete physical copy of the remote information be made. An enhanced and refined hash table permits access to the remote information in order or according to a search key with significant reduction in the memory requirements on the local device even though the remote information is not sorted. Scrolling through the remote data structure without accessing any unnecessary record on the remote device and hence reducing scroll response time is also achieved.

Remote management of an external phonebook

A method and apparatus for detecting a signaling tone within a communications channel, such as a telephone line, is presented. The energy level of the communications channel signal is measured at the frequency of the signaling tone and at one or more frequencies that are integer divisors of the signaling tone (i.e. at one or more subharmonics). The subharmonic energies are evaluated in determining whether the signaling tone is present. The technique can be implemented using a plurality of resonators and a comparator.

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Vancouver, Canada

Gary Louie