Adaptive transmit power adjustment for phone in hand detection using wearable device
First Claim
1. A method for confirming that a peripheral device is positioned within a predetermined distance of a wireless communications device, the method performed at the wireless communications device, the method comprising:
- transmitting a control signal to a peripheral device worn by a user responsive to receiving user input at the user'"'"'s wireless communications device, wherein the control signal controls the peripheral device to enter a low-power transmission mode;
receiving security data from the peripheral device that was transmitted in the low-power transmission mode; and
determining that the peripheral device is positioned within a predetermined distance of the user'"'"'s wireless communications device responsive to receiving the security data.
3 Assignments
0 Petitions
Accused Products
Abstract
A system including a wireless communication device and a peripheral device communicate with each other using radio frequency (RF) waves that are propagated using a user'"'"'s own body as a transmission medium. The wireless communication device selectively controls the transmit output power of the peripheral device to cause the peripheral device to transmit data and information in a low-power transmission mode. This minimizes the amount of RF waves that are received at the wireless communication device as reflected RF waves, but helps to ensure that the RF waves that do reach the wireless communication device are transmitted as surface waves along the user'"'"'s skin. Responsive to the receipt of the surface waves, and based on a validity of the information carried by those surface waves, the wireless communication device transitions from a locked state to an unlocked state.
46 Citations
20 Claims
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1. A method for confirming that a peripheral device is positioned within a predetermined distance of a wireless communications device, the method performed at the wireless communications device, the method comprising:
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transmitting a control signal to a peripheral device worn by a user responsive to receiving user input at the user'"'"'s wireless communications device, wherein the control signal controls the peripheral device to enter a low-power transmission mode; receiving security data from the peripheral device that was transmitted in the low-power transmission mode; and determining that the peripheral device is positioned within a predetermined distance of the user'"'"'s wireless communications device responsive to receiving the security data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless communications device comprising:
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a communications interface circuit configured to communicate data with a peripheral device being worn by a user utilizing the user'"'"'s own skin as a transport medium; a user input/output (I/O) interface circuit configured to receive user input; and a processor circuit configured to; transmit a control signal to the peripheral device responsive to receiving user input at the user I/O interface circuit, wherein the control signal controls the peripheral device to enter a low-power transmission mode; receive security data from the peripheral device that was transmitted in the low-power transmission mode; and determine that the peripheral device is positioned within a predetermined distance of the wireless communications device responsive to receiving the security data. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for confirming that a peripheral device being worn by a user is positioned within a predetermined distance of the user'"'"'s wireless communications device, the method performed at the peripheral device, the method comprising:
responsive to receiving a first control signal from the wireless communications device; entering a low-power transmission mode; retrieving a predetermined security code from a memory circuit; and transmitting the security data to the wireless communications device in the low-power transmission mode using the user'"'"'s own skin as a transmission medium. - View Dependent Claims (14, 15, 16)
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17. A peripheral device worn by a user comprising:
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a communications interface circuit configured to communicate signals and data with a wireless communications device using the user'"'"'s own skin as a transmission medium; a memory circuit configured to store security data utilized by the wireless communications device to perform a predefined security function; and a processor circuit configured to; receive a first control signal from the wireless communications device via the communications interface circuit; and responsive to receiving the first control signal; enter a low-power transmission mode; retrieve a predetermined security code from the memory circuit; and transmit the security data to the wireless communications device in the low-power transmission mode via the communications interface circuit. - View Dependent Claims (18, 19, 20)
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Specification