Mobile telephone power key lock function
DCFirst Claim
1. A method for operating a mobile phone of a type having a key pre-defined as a power-on key and a plurality of other keys, comprising the steps of:
- defining at least one of the keys to represent a secondary power-on key;
during a time that the mobile phone is in an off-state, sensing that the power-on key has been activated;
placing the mobile phone in a partially on-state;
determining, within a predetermined period of time, if the at least one secondary power-on key has been activated; and
if the step of determining indicates that the at least one secondary power-on key has not been activated within the predetermined period of time, restoring the mobile phone to the off-state.
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Abstract
A method of this invention is disclosed for operating a mobile phone (10) of a type having a power-on key and a plurality of other keys. The method includes the steps of: (a) defining at least one key to represent a secondary power-on key; (b) during a time that the mobile telephone is in an off-state, sensing that the power-on key has been activated; and (c) placing the mobile phone in a partially on-state. The method further includes the steps of: (d) determining, within a predetermined period of time, if the at least one secondary power-on key has been activated; and (e) if it is determined that the at least one secondary power-on key has not been activated within the predetermined period of time, the method restores the mobile phone to the off-state. In one embodiment of this invention the step of defining includes the sub-steps of: presenting a message to a user for prompting the user to depress a key; and in response to the user depressing a key, storing an identity of the depressed key as the secondary power-on key.
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Citations
10 Claims
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1. A method for operating a mobile phone of a type having a key pre-defined as a power-on key and a plurality of other keys, comprising the steps of:
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defining at least one of the keys to represent a secondary power-on key; during a time that the mobile phone is in an off-state, sensing that the power-on key has been activated; placing the mobile phone in a partially on-state; determining, within a predetermined period of time, if the at least one secondary power-on key has been activated; and if the step of determining indicates that the at least one secondary power-on key has not been activated within the predetermined period of time, restoring the mobile phone to the off-state. - View Dependent Claims (2)
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3. A mobile phone of a type having a key pre-defined as a power-on key and a plurality of other keys, said mobile phone comprising:
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a memory for storing an identity of at least one key that is specified for functioning as a secondary power-on key; and power control means having inputs coupled to the power-on key, to the plurality of other keys, and to the memory, said power control means comprising, means, responsive to the power-on key being activated during a time that the mobile phone is in an off state, for placing the mobile phone in a partially on-state; and means for determining, within a predetermined period of time when the mobile phone is in the partially on-state, if the at least one secondary power-on key has been activated and, if not, for restoring the mobile phone to the off-state. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A method for operating a mobile phone of a type having a primary power-on key and a plurality of other keys, comprising the steps of:
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in response to an input from a user, defining one of the other keys to represent a secondary power-on key; during a time that the mobile phone is in an off-state, sensing that the primary power-on key has been activated and, in response, placing the mobile phone in a partially on-state only if it is determined that a power supply voltage exceeds a predetermined threshold voltage; determining, within a predetermined period of time after placing the mobile phone in the partially on-state, if the secondary power-on key is activated; and if the secondary power-on key is not activated within the predetermined period of time, restoring the mobile phone to the off-state; else, if the secondary power-on key is activated within the predetermined period of time, placing the mobile phone in a fully on-state.
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Specification