Portable radiotelephone with control switch disabling
AssigneeMotorola, Inc.
InventorsMichael P. Metroka, Scott B. Davis, P. J. Gargulak
Life of this patent
Estimating the term…
Abstract
A portable radiotelephone with control switch disabling is disclosed. A flip element which contains a microphone and covers a keypad and other control buttons when in a closed position also activates a hookswitch. When the hookswitch and microprocessor indicate that the flip element is in a closed position, the on/off switch cannot be activated to turn the portable radiotelephone on or off and switches which control volume level are deactivated.
Claims19
A portable radiotelephone apparatus having a keypad disposed on an outer surface and a movable element covering the keypad when placed in a first position and exposing the keypad when placed in a second position, the portable radiotelephone apparatus operating from a switchable power source and comprising:
- means for producing an on-hook condition in the portable radiotelephone apparatus if the movable element is in the first position and for producing an off-hook condition in the portable radiotelephone if the movable element is in the second position;
- and
- means for preventing the switchable power source from being switched on or off if the portable radiotelephone apparatus is in said produced on-hook condition.
A portable radiotelephone apparatus having a keypad disposed on an outer surface and a movable element covering the keypad when placed in a first position and exposing the keypad when placed in a second position, the portable radiotelephone apparatus operating from a switchable power source and comprising:
- means for producing an on-hook condition in the portable radiotelephone apparatus if the movable element is in the first position and for producing an off-hook condition in the portable radiotelephone if the movable element is in the second position;
- and
- means for preventing adjustment of the acoustic volume of an acoustic transducer if the portable radiotelephone apparatus is in said produced on-hook condition.
A method of preventing spurious switch operation in a portable radiotelephone operating from a switchable power source and having a keypad disposed on the outer surface and a movable element covering the keypad when placed in a first position and exposing the keypad when placed in a second position, the method comprising the steps of:
- producing an on-hook condition in the portable radiotelephone apparatus when the movable element is in the first position and producing an off-hook condition in the portable radiotelephone in when the movable element is in the second position;
- and
- preventing the switchable power source from being switched on or off when the portable radiotelephone is in said produced on-hook condition.
Dependencies are inferred from the claim text.