Implantable device and system and method for wireless communication
First Claim
1. A device for receiving wireless energy from a charging device, the device comprising:
- an antenna element operable for receiving wireless energy transmitted from the charging device;
a switching regulator coupled to the antenna element and having circuitry for enabling operation of the switching regulator during a first predetermined time period and for disabling operation of the switching regulator during a second predetermined time period in response to a switching regulator control signal, the switching regulator operable for receiving and regulating the received wireless energy and outputting a regulated voltage; and
a pulse loading circuit coupled to the antenna element and operable for receiving one or more pulse loading pulses during the second predetermined time period and pulse loading the antenna element in response to the one or more pulse loading pulses, and wherein the pulse loading the antenna element is operable to transmit data to the charging device.
1 Assignment
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Accused Products
Abstract
A wireless communication method and protocol, and wireless devices and systems for stimulation, are provided for communication between a wireless device and a charging device. During active wireless charging, communications (data transmission) from the wireless device to the charging device occurs via pulse loading the receive antenna of the receiving device. Because switching regulation in the receiving device may interfere with the communications, the switching regulation is disabled during a communications window. To further reduce the likelihood of misinterpretation of signals detected in the charging device resulting from the switching regulation or noise, the data bit rate of the pulse loading communications is maintained higher than the switching regulation frequency.
212 Citations
21 Claims
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1. A device for receiving wireless energy from a charging device, the device comprising:
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an antenna element operable for receiving wireless energy transmitted from the charging device; a switching regulator coupled to the antenna element and having circuitry for enabling operation of the switching regulator during a first predetermined time period and for disabling operation of the switching regulator during a second predetermined time period in response to a switching regulator control signal, the switching regulator operable for receiving and regulating the received wireless energy and outputting a regulated voltage; and a pulse loading circuit coupled to the antenna element and operable for receiving one or more pulse loading pulses during the second predetermined time period and pulse loading the antenna element in response to the one or more pulse loading pulses, and wherein the pulse loading the antenna element is operable to transmit data to the charging device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless charging device operable for transmitting wireless energy to a receiving device, the wireless charging device comprising:
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an antenna for transmitting wireless energy over a wireless link to the receiving device during a power transfer cycle; and a receiver coupled to the antenna for receiving during the power transfer cycle one or more data messages from the receiving device, the receiver further comprising; a pulse loading detection circuit coupled to the antenna for detecting one or more pulse loading signals transmitted from the receiving device and for outputting one or more corresponding pulse signals, and a processor coupled to the pulse loading detection circuit for detecting each pulse width of the one or more pulse signals and differentiating between a pulse width of a first received pulse loading signal transmitted during a pulse loading communication session and a pulse width of a second pulse loading signal caused by switching regulation in the receiving device. - View Dependent Claims (11, 12, 13)
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14. A method of transmitting a message from a wireless device to a wireless charging device, the method comprising:
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receiving, via an antenna element, wireless energy from the charging device; performing switching regulation of the wireless energy to generate a regulated voltage; disabling the switching regulation for a predetermined time period; and pulse loading the antenna element during the predetermined time period thereby transmitting data to the charging device. - View Dependent Claims (15, 16, 17)
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18. A method of receiving a message at a wireless charging device from a wireless device, the method comprising:
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transmitting wireless energy over a wireless link to the receiving device during a power transfer cycle; and receiving during the power transfer cycle one or more data messages from the wireless device, the receiving comprising, detecting one or more pulse loading signals transmitted from the wireless device and outputting one or more corresponding pulse signals, and detecting each pulse width of the one or more pulse signals and differentiating between a pulse width of a first received pulse loading signal transmitted during a pulse loading communication session and a pulse width of a second pulse loading signal caused by switching regulation.
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19. A system for stimulating a portion of a body, the system comprising:
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an implantable device for receiving wireless energy from a charging device and for generating a stimulus, the implantable device comprising, an antenna element operable for receiving wireless energy transmitted from the charging device, a switching regulator coupled to the antenna element and having circuitry for enabling operation of the switching regulator during a first predetermined time period and for disabling operation of the switching regulator during a second predetermined time period in response to a switching regulator control signal, the switching regulator operable for receiving and regulating the received wireless energy and outputting a regulated voltage, and a pulse loading circuit coupled to the antenna element and operable for receiving one or more pulse loading pulses during the second predetermined time period and pulse loading the antenna element in response to the one or more pulse loading pulses, and wherein the pulse loading the antenna element is operable to transmit data to the charging device; and an implantable lead for receiving the stimulus from the implantable device and applying the stimulus to one or more electrodes. - View Dependent Claims (20, 21)
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Specification