Radio-frequency (RF) power portal
First Claim
1. A method for powering a mobile device having an energy harvester, the method comprising:
- converting, during a first time period, the wireless energy by the energy harvester of the mobile device into current when the mobile device is in the portal, wireless energy being transmitted in the portal to the energy harvester of the mobile device to receive and convert into current when the mobile device is in the portal, the mobile device being in the portal during the first time period;
charging a charge storage element of the mobile device when the mobile device is in the portal during the first time period using at least a portion of the current;
enabling a communication transceiver at the mobile device in response to the charging and during the first time period, the communication transceiver operatively coupled to the energy harvester; and
disabling the communication transceiver during a second time period, the second time period being after the first time period, the mobile device being out of the portal during the second time period, at least a portion of the mobile device being operable using current from the charged charge storage element during the second time period, the disabling being in response to the mobile device moving out of the portal.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for powering a mobile device having an energy harvester which receives wireless energy and converts the energy into current includes a first portal in which wireless energy is transmitted for the energy harvester of the mobile device to receive and convert it into current when the device is in the first portal. The system comprises a second portal separate and apart from the first portal with a gap between the first portal and the second portal, the second portal in which wireless energy is transmitted for the energy harvester of the mobile device to receive and convert it into current after the device has passed through the first portal and the gap and is in the second portal. A method for powering a mobile device having an energy harvester which receives wireless energy and converts the energy into current is also disclosed.
-
Citations
28 Claims
-
1. A method for powering a mobile device having an energy harvester, the method comprising:
-
converting, during a first time period, the wireless energy by the energy harvester of the mobile device into current when the mobile device is in the portal, wireless energy being transmitted in the portal to the energy harvester of the mobile device to receive and convert into current when the mobile device is in the portal, the mobile device being in the portal during the first time period; charging a charge storage element of the mobile device when the mobile device is in the portal during the first time period using at least a portion of the current; enabling a communication transceiver at the mobile device in response to the charging and during the first time period, the communication transceiver operatively coupled to the energy harvester; and disabling the communication transceiver during a second time period, the second time period being after the first time period, the mobile device being out of the portal during the second time period, at least a portion of the mobile device being operable using current from the charged charge storage element during the second time period, the disabling being in response to the mobile device moving out of the portal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method, comprising:
-
receiving, at an energy harvester of a mobile device, wireless energy transmitted within a first portal when the mobile device is moved into the first portal, the energy harvester of the mobile device configured to convert the wireless energy received in the first portal into direct current when the mobile device is in the first portal; converting, at the energy harvester of the mobile device, the wireless energy transmitted in the first portal into direct current when the mobile device is in the first portal, a first portion of the direct current being used by the mobile device as operational power when the mobile device is in the first portal; storing a second portion of the direct current within a charge storage element of the mobile device when the mobile device is in the first portal; enabling a communication transceiver at the mobile device when the mobile device is in the first portal in response to the storing, the communication transceiver operatively coupled to the energy harvester; receiving, at the energy harvester of the mobile device, wireless energy transmitted within a second portal after the mobile device is moved from the first portal to the second portal, the second portal being separate and apart from the first portal such that the mobile device is moved through a gap between the first portal and the second portal, at least a portion of the mobile device being operable using direct current stored within the charge storage element of the mobile device when the mobile device is in the gap between the first portal and the second portal, the energy harvester of the mobile device configured to convert the wireless energy received in the second portal into direct current when the mobile device is in the second portal; disabling the communication transceiver when the mobile device is in the gap between the first portal and the second portal, the disabling being in response to the mobile device moving out of the first portal and into the gap between the first portal and the second portal; and converting, at the energy harvester of the mobile device, the wireless energy transmitted in the second portal into direct current when the mobile device is in the second portal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
Specification