Research in Motion Corporation

Blackberry Corporation

Padakandla Krishna Rao

Jason Tyler Griffin

Mihal Lazaridis

Jean-Philippe Paul Cormier

Asif Hossain

Arun Munje

M Khaledul Islam

Shahid Rasul Chaudry

Runbo Fu

Trevor Plestid

Sing Janus Yau

Dietmar Frank Wennemer

Marcelo Varanda

Stewart Charles Morris

Edwin Llanos

Xiaona An

Hongchang Tian

Ray Dikun

Janus Sing Yau

Richard Sims

Sing J Yau

James Rw Lepp

Balarajan Balasubramaniam

James R W Lepp

A system for enhancing functionality of a mobile device comprising: the mobile device, wherein the mobile device includes: a radio subsystem; a processor adapted to interact with the radio subsystem; a user interface; a short range communications system; and a battery adapted to power the mobile device; and an accessory adapted to communicate with the mobile device, the accessory including: at least one processor; a radio subsystem communicating with the processor; and a short range communications system adapted to communicate with the short range communications system of the mobile device, wherein the radio subsystem of the mobile device differs from the radio subsystem of the accessory.

Radio accessory for a mobile device

A method and apparatus for configuring a mobile device capable of supporting multiple number assignment modules, the method writing a first configuration parameter to indicate whether the mobile device should support multiple number assignment modules; specifying a second configuration parameter to indicate whether the mobile device should support data connectivity on a second or subsequent number assignment module; and setting a third configuration parameter to indicate whether separate billing should occur for data usage on the multiple number assignment modules. Also, a method and apparatus for data connectivity on a mobile device supporting multiple name assignment modules, the method checking, subsequent to transitioning to a second name assignment module, whether the second name assignment module supports data connectivity; responsive to the checking, determining whether separate billing is required for the second name assignment module; and responsive to the determining, establishing a data connection.

Method and apparatus for flexible multiple number assignment modules

A method, system, and device are provided for transmit channel request messaging in wireless half-duplex voice communication systems. A new transmit channel request message (TCRM) is provided and sent over a logical control channel from a receiving device capable of walkie-talkie-like functionality, during an active half-duplex session, to a transmitting device capable of walkie-talkie-like functionality, indicating that the transmit channel is requested. In some embodiments, the invention provides for the display of information on the transmitting device user interface (UI) indicating, during an active session, that another user wishes to talk. The TCRM includes an indication that another device has requested the transmit channel and preferably includes an identification of the device which sent the transmit channel request message. In some embodiments, a qualifier flag in the TCRM is used to specify what, if any, extended functionality in respect of the TCRM is to be performed.

Transmit channel request messaging for half-duplex voice communications systems

In a push-to-talk device having two processors where one of the processors is a radio chip and one of the processors is a microprocessor, a method and apparatus for synchronizing the microprocessor and the radio chip includes the steps of checking the status of a radio push-to-talk key on the radio chip when a user push-to-talk button is turned on or off on the microprocessor; if the user push-to-talk button is on and the radio push-to-talk key is off, performing the steps of sending a command to the radio chip to turn on the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk key is on, remaining in this synchronized state, otherwise repeating the sending and waiting steps; if the user button is off and the radio push-to-talk key is on, performing the steps of: sending a command to the radio chip to turn off the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk key is off, remaining in this synchronized state, otherwise repeating the sending and waiting steps; if the user push-to-talk button is off and the radio push-to-talk key is off, remaining in this synchronized state; and if the user push-to-talk button is on and the radio push-to-talk key is on, remaining in this synchronized state.

Push-to-talk handling in a dual processor environment

A method, system, and user device are provided for provisioned talkgroup identifier discovery in a dispatch or similar network, in which a user is provided with a list of talkgroups provisioned for the user device. In some embodiments a new request message sent from the user device is implemented to effect a response from the network providing the information. In other embodiments the provision of the information is provided by a new message automatically sent from the network to the user device at a specific time. In yet other embodiments, the user device attempts to join every group to test which groups are provisioned for it.

Method, system, and device for provisioned talkgroup identifier discovery

Systems and methods are provided for controlling transmit channel utilization in systems providing walkie-talkie-like communications to wireless devices. Parameters such as a maximum talk time and back off time are provided to each wireless device to control how long they can continuously occupy the talk channel, and to control how soon after releasing the talk channel they can again access the talk channel.

Transmit channel policing system, device, and method

In a dual processor mobile device one processor is a radio processor and one processor is an application processor, the mobile device further including a polyphonic audio chip, a method and apparatus for audio control, the method having the steps of: connecting the polyphonic audio chip between the controller and a highly integrated audio codec; connecting the radio processor to the highly integrated audio codec; controlling the highly integrated audio codec from the radio processor; and coordinating between the application processor and the radio processor to allow the radio processor to control the highly integrated audio codec through the radio processor.

Audio management in a dual processor environment

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Kanata, Canada

Padakandla Krishna Rao