Portable radio telephone which terminates an electronic keypad lock function upon sensing an incoming call
First Claim
1. A portable radio telephone apparatus comprising a keypad having a plurality of externally accessible and individually actuable keys,means for sensing the actuation of a first and second one of said keys respectively in a unique predetermined order,means responsive to said sensing means for disabling at least some of the other keys of said keypad, andmeans for automatically interrupting key disablement responsive to sensing an incoming call.
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Accused Products
Abstract
A portable radio telephone has a keypad including a plurality of externally accessible keys. The keys can be disabled (i.e. the keypad can be locked) to prevent accidental actuation thereof by performing a predetermined order of keystrokes using two of the keys which ordinarily have an alternative function associated therewith. Thus, for example, depression of the # key followed by the ON/OFF key temporarily enables the keyboard lock. The lock can be disabled simply by repeating the same keystrokes.
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Citations
13 Claims
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1. A portable radio telephone apparatus comprising a keypad having a plurality of externally accessible and individually actuable keys,
means for sensing the actuation of a first and second one of said keys respectively in a unique predetermined order, means responsive to said sensing means for disabling at least some of the other keys of said keypad, and means for automatically interrupting key disablement responsive to sensing an incoming call.
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7. A portable radio telephone apparatus comprising a keypad having a plurality of externally accessible and individually actuable keys,
means for sensing the actuation of a first and second one of said keys respectively in a unique predetermined order, said first and second keys being associated with at least one alternative function respectively, means responsive to said sensing means for disabling at least some of the other keys of said keypad, and means for automatically terminating key disablement when circuitry in the apparatus senses an incoming call.
Specification