Abstract: An input generating device for use in a hand held electronic device having a housing includes a core formed in a planar and semicircular in shape, forming a peripheral edge extending around said core and a track slidably engaged with the peripheral side edge. A curved portion of the peripheral edge extends outwardly from the housing allowing access thereto by the user. A first input is generated by sliding movement of the flexible track relative to the core. First input detection means, such as a turns encoder switch detects the sliding movement of the track. The core is depressibly mounted within the housing, generating a second input when the core is depressed. A second input detection means, such as a tactile contact switch detects depression of the core.

Abstract: An input generating device for use in a hand held electronic device having a housing includes a core formed in a planar and semicircular in shape, forming a peripheral edge extending around said core and a track slidably engaged with the peripheral side edge. A curved portion of the peripheral edge extends outwardly from the housing allowing access thereto by the user. A first input is generated by sliding movement of the flexible track relative to the core. First input detection means, such as a turns encoder switch detects the sliding movement of the track. The core is depressibly mounted within the housing, generating a second input when the core is depressed. A second input detection means, such as a tactile contact switch detects depression of the core.

Abstract: A mobile electronic device having a keyboard has a cover plate acting as a dial keypad. The keypad has a push-through, hinge-spring design that activates only one of two keyboard keys underlying a dial key and allows backlighting transmissivity. A translucent material can be used to allow the keyboard key backlighting to be coupled through to a top dial key. The keypad creates an aesthetically balanced dial keypad arrangement over a QWERTY keyboard. A preferable mechanical implementation allows backlighting and has an offset contact and spring design to activate one of the two underlying keys. This activation simplifies the software implementation for executing the dial number since the signal is coming from one address rather than having to make a determination of whether it is coming from one or two addresses. Moreover, the resulting dial key press has a standard single click feel.

Abstract: A printed circuit board is provided for use in a keyboard assembly of a mobile device having a plurality of keys in a key layout. The printed circuit board has a plurality of contacts, such as dome switches, arranged in a contact layout. The contact layout is such that it can be used with a plurality of different key layouts, each actuating different combinations of contacts. Some keys in a particular key layout are overlying at least two of the plurality of contacts, and such keys actuate only one of the underlying contacts. As such, a common printed circuit board can be used for a plurality of complementary mobile device designs having different key layouts, thereby allowing a manufacturer to realize cost efficiencies.

Abstract: An input generating device for use in a hand held electronic device having a housing includes a core formed in a planar and semicircular in shape, forming a peripheral edge extending around said core and a track slidably engaged with the peripheral side edge. A curved portion of the peripheral edge extends outwardly from the housing allowing access thereto by the user. A first input is generated by sliding movement of the flexible track relative to the core. First input detection means, such as a turns encoder switch detects the sliding movement of the track. The core is depressibly mounted within the housing, generating a second input when the core is depressed. A second input detection means, such as a tactile contact switch detects depression of the core.

Abstract: A printed circuit board is provided for use in a keyboard assembly of a mobile device having a plurality of keys in a key layout. The printed circuit board has a plurality of contacts, such as dome switches, arranged in a contact layout. The contact layout is such that it can be used with a plurality of different key layouts, each actuating different combinations of contacts. Some keys in a particular key layout are overlying at least two of the plurality of contacts, and such keys actuate only one of the underlying contacts. As such, a common printed circuit board can be used for a plurality of complementary mobile device designs having different key layouts, thereby allowing a manufacturer to realize cost efficiencies.