Identification using signals from a secondary device before wireless power transfer
First Claim
1. An apparatus comprising:
- a ping detection circuit that detects a ping signal transmitted from a secondary pad to a primary pad, the secondary pad located on a mobile device, the primary pad located on a stationary wireless power transfer (“
WPT”
) device, the stationary WPT device transmitting power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation, the ping signal comprising a mobile device identifier (“
ID”
), the mobile device ID being unique to the mobile device;
an ID detection circuit that detects the mobile device ID from the ping signal received at the primary pad;
a pairing circuit that pairs the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device;
a signal strength circuit that determines a signal strength of the received ID embedded ping signal; and
an alignment circuit that determines an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ID embedded ping signal.
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Accused Products
Abstract
An apparatus includes a ping detection module that detects a ping signal transmitted from a secondary pad to a primary pad. The secondary pad is located on a mobile device and the primary pad located on a stationary WPT device, where the stationary WPT device transmits power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation. The ping signal includes a mobile device ID and the mobile device ID is unique to the mobile device. The apparatus includes an ID detection module that detects the mobile device ID from the ping signal received at the primary pad and a pairing module that pairs the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device.
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Citations
11 Claims
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1. An apparatus comprising:
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a ping detection circuit that detects a ping signal transmitted from a secondary pad to a primary pad, the secondary pad located on a mobile device, the primary pad located on a stationary wireless power transfer (“
WPT”
) device, the stationary WPT device transmitting power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation, the ping signal comprising a mobile device identifier (“
ID”
), the mobile device ID being unique to the mobile device;an ID detection circuit that detects the mobile device ID from the ping signal received at the primary pad; a pairing circuit that pairs the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device; a signal strength circuit that determines a signal strength of the received ID embedded ping signal; and an alignment circuit that determines an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ID embedded ping signal. - View Dependent Claims (2, 3, 4)
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5. An apparatus comprising:
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an ID circuit that generates a mobile device identifier (“
ID”
), the mobile device ID being unique to a mobile device;a ping transmit circuit that transmits a ping signal from a secondary pad to a primary pad, the secondary pad located on the mobile device, the primary pad located on a stationary wireless power transfer (“
WPT”
) device, the stationary WPT device transmitting power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation, the ping signal comprising the mobile device ID;a pairing circuit that pairs the stationary WPT device receiving the ping signal with the mobile device transmitting the ping signal in response to the stationary WPT device detecting the mobile device ID of the mobile device, wherein one or more of; the mobile device comprises one of a plurality of mobile devices; and the stationary WPT device comprises one of a plurality of stationary WPT devices; and
an alignment confirmation circuit that receives an alignment confirmation that the secondary pad is aligned within the primary pad within a specified alignment tolerance, the alignment confirmation in response to determining, at the primary pad, a signal strength of the received ID embedded ping signal, and determining that an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ID embedded ping signal is within the specified alignment tolerance. - View Dependent Claims (6)
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7. A method comprising:
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detecting a ping signal transmitted from a secondary pad to a primary pad, the secondary pad located on a mobile device, the primary pad located on a stationary wireless power transfer (“
WPT”
) device, the stationary WPT device transmitting power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation, the ping signal comprising a mobile device identifier (“
ID”
), the mobile device ID being unique to the mobile device;detecting the mobile device ID from the ping signal received at the primary pad; pairing the stationary WPT device with the mobile device in response to detecting the mobile device ID of the mobile device; determining a signal strength of the received ID embedded ping signal; and determining an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ID embedded ping signal. - View Dependent Claims (8, 9)
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10. A method comprising:
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generating a mobile device identifier (“
ID”
), the mobile device ID being unique to a mobile device;transmitting a ping signal from a secondary pad to a primary pad, the secondary pad located on the mobile device, the primary pad located on a stationary wireless power transfer (“
WPT”
) device, the stationary WPT device transmitting power through the primary pad to the secondary pad of the mobile device during a wireless power transfer operation, the ping signal comprising the mobile device ID;pairing the stationary WPT device with the mobile device in response to the stationary WPT device detecting the mobile device ID of the mobile device, wherein one or more of; the mobile device comprises one of a plurality of mobile devices; and the stationary WPT device comprises one of a plurality of stationary WPT devices; and
receiving an alignment confirmation that the secondary pad is aligned within the primary pad within a specified alignment tolerance, the alignment confirmation in response to determining, at the primary pad, a signal strength of the received ID embedded ping signal, and determining that an amount of alignment of the secondary pad with respect to the primary pad based on the determined signal strength of the received ID embedded ping signal is within the specified alignment tolerance. - View Dependent Claims (11)
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Specification