Biopresence based keyguard mechanism
First Claim
1. A method for transforming the status of an electronic device keypad from a locked state to an unlocked state, comprising:
- detecting an engagement of the device keypad through pressure or displacement sensing, wherein the device keypad includes physically depressible keys, and wherein the engagement of the device keypad includes a key depression of a key;
detecting the same engagement of the device keypad through bio-presence sensing; and
measuring a time period from when the engagement of the device keypad through pressure or displacement sensing is detected, to when the same engagement of the device keypad through bio-presence sensing is detected;
based on measuring the time period, determining that the device keypad is engaged by human touch when the time period is less than an allotted time period;
upon determining that the device keypad is engaged by human touch, changing the status of the electronic device keypad from a locked state to an unlocked state.
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Accused Products
Abstract
A bio-presence based keyguard mechanism for a portable device detects a situation where both a bio-presence sensor and a pressure or displacement sensor are engaged, and then selectively removes an associated keypad from a locked state and places the keypad in an unlocked state. In accordance with one aspect, the keyguard mechanism employs a method for transforming the status of a portable device keypad from a locked state to an unlocked state. Within the method, a signal is received from a pressure or displacement sensor associated with a particular key of the keypad, when the keypad is in a locked state. It is then determined whether a signal is received from a bio-presence sensor associated with the particular key, or with a particular portion of the keypad, within an allotted time period, and if so, the status of the keypad is changed to an unlocked state.
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Citations
8 Claims
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1. A method for transforming the status of an electronic device keypad from a locked state to an unlocked state, comprising:
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detecting an engagement of the device keypad through pressure or displacement sensing, wherein the device keypad includes physically depressible keys, and wherein the engagement of the device keypad includes a key depression of a key; detecting the same engagement of the device keypad through bio-presence sensing; and measuring a time period from when the engagement of the device keypad through pressure or displacement sensing is detected, to when the same engagement of the device keypad through bio-presence sensing is detected; based on measuring the time period, determining that the device keypad is engaged by human touch when the time period is less than an allotted time period; upon determining that the device keypad is engaged by human touch, changing the status of the electronic device keypad from a locked state to an unlocked state. - View Dependent Claims (2, 3)
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4. Non-transitory computer-readable media having embodied thereon computer-useable instructions for performing a method of transforming the status of an electronic device keypad from a locked state to an unlocked state, the method comprising:
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detecting an engagement of the device keypad through pressure or displacement sensing, wherein the device keypad includes physically depressible keys, wherein input is provided in response to a key depression of a given key, and wherein the engagement includes simultaneous key depressions of two of the keys; detecting the same engagement of the device keypad through bio-presence sensing; and for each of the two keys, measuring a time period from when the engagement of the device keypad through pressure or displacement sensing is detected, to when the same engagement of the device keypad through bio-presence sensing is detected; based on measuring the time period, determining whether the time period is less than an allotted time period; determining whether the two keys are included in a pre-established set of keys that are designated for unlocking the device keypad; changing the status of the electronic device keypad from a locked state to an unlocked state when (1) the time period is less than the allotted time period and (2) the two keys are included in the pre-established set of keys. - View Dependent Claims (5, 6, 7, 8)
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Specification