HANDHELD WIRELESS COMMUNICATION DEVICE WITH CHAMFER KEYS
First Claim
1. A handheld wireless communication device configured to send and receive text messages, said device comprising:
- a hand cradleable body configured to be held in one hand by an operator of said device during text entry;
a display located on a front face of said body and upon which information is displayed to the operator during text entry;
a trackball navigation tool located on the front face of said body;
a key field located on the front face of said body, said key field being composed of a plurality of keys selected from a plurality of alphanumeric input keys and at least one menu key, said alphanumeric input keys comprising a plurality of alphabetic keys having letters associated therewith;
a microprocessor configured to receive operator commands from said alphanumeric input keys, said menu keys and said trackball navigation tool and to affect corresponding changes to the display;
a plurality of said keys of said key field each being a resiliently depressible key having an upper surface presenting a primary engagement surface for receiving an operator'"'"'s touch-engagement when depressing the respective resiliently depressible key; and
at least one of said resiliently depressible keys further comprising a chamfer surface descending down from the primary engagement surface of said at least one resiliently depressible key toward an adjacent resiliently depressible key, said chamfer surface defining a finger clearance space above said at least one resiliently depressible key whereby inadvertent depression of said at least one resiliently depressible key is avoided when the adjacent resiliently depressible key is depressed.
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Accused Products
Abstract
A handheld wireless communication device configured to send and receive text messages. The device is hand cradleable with a body configured to be held in one hand by an operator during text entry. A display is located on a front face of the body and upon which information is displayed to the operator during text entry. A key field is also located on the front face of the body and that includes a plurality of alphanumeric input keys and menu control keys. A trackball navigation tool is located on the front face of the body. The keys have a primary engagement surface for receiving an operator'"'"'s touch engagement and a chamfer surface descending down from the primary engagement surface such that the chamfer surface defines a finger clearance space. A microprocessor is provided that receives operator commands from the keys and the trackball navigation tool and which affects corresponding changes to the display based on user input.
83 Citations
20 Claims
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1. A handheld wireless communication device configured to send and receive text messages, said device comprising:
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a hand cradleable body configured to be held in one hand by an operator of said device during text entry;
a display located on a front face of said body and upon which information is displayed to the operator during text entry;
a trackball navigation tool located on the front face of said body;
a key field located on the front face of said body, said key field being composed of a plurality of keys selected from a plurality of alphanumeric input keys and at least one menu key, said alphanumeric input keys comprising a plurality of alphabetic keys having letters associated therewith;
a microprocessor configured to receive operator commands from said alphanumeric input keys, said menu keys and said trackball navigation tool and to affect corresponding changes to the display;
a plurality of said keys of said key field each being a resiliently depressible key having an upper surface presenting a primary engagement surface for receiving an operator'"'"'s touch-engagement when depressing the respective resiliently depressible key; and
at least one of said resiliently depressible keys further comprising a chamfer surface descending down from the primary engagement surface of said at least one resiliently depressible key toward an adjacent resiliently depressible key, said chamfer surface defining a finger clearance space above said at least one resiliently depressible key whereby inadvertent depression of said at least one resiliently depressible key is avoided when the adjacent resiliently depressible key is depressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification