Research in Motion Corporation

Blackberry Corporation

Timothy Koo

Vadim Fux

Aleksej Trefilov

Shannon Tyler Moore

Kevin Roy Sugden

Donald Somerset Mckenzie

Dan Rubanovich

Parul Nanda

Jason Tyler Griffin

Sherryl Lee Lorraine Scott

Xiaoting Sun

Panul Nanda Gilani

Carlos Roberto Perez-Puhiera

An electronic device for disambiguation of stroke input, the device comprising: an input device coupled to the microprocessor for accepting a stroke input; and a stroke disambiguation module resident in the memory for execution by the microprocessor. The device is configured to: receive a signal representing a stroke input sequence at the stroke disambiguation module; apply one or more stroke disambiguation rules to the stroke input sequence to generate an updated input sequence; and transmit a signal representing the updated input sequence.

System and method for disambiguation of stroke input

A handheld device includes a plurality of input members, a first set of which each have a Roman character assigned thereto, a least some of which have a first non-Roman and a second non-Roman character assigned thereto. In response to an actuation of a first one of the input members, a first one of the non-Roman characters that is assigned to the first one of the input members is displayed. Based on one or more rules which govern permissible character sequences in the subject language, the display of a second one of the non-Roman characters in response to an actuation of a second one of the input members having the second one of the non-Roman characters assigned thereto immediately following the actuation of said first one of the input members is prevented.

Handheld electronic device and associated method enabling text input in a language employing non-roman characters

An improved handheld electronic device includes an input apparatus, preferably a trackball, an output apparatus, namely a display, and a processor apparatus. The processor apparatus is structured to execute a number of routines including a stroke-based input user interface routine. The stroke-based input user interface routine is structured to present a user interface on the display. The user interface includes an active portion, a filter portion and an output portion.

Stroke based input system for character input

Keyboard

Keypad

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Cambridge, Canada

Timothy Koo