Electronic lockset with multi-source energy harvesting circuit
First Claim
1. An electronic lockset for use with a radio frequency (“
- RF”
) transmitter configured to transmit at one or more predetermined frequencies, the electronic locket comprising;
a locking device moveable between a locked position and an unlocked position;
one or more energy consumption devices configured to actuate the locking device between the locked position and the unlocked position;
at least one rechargeable battery configured to provide power to the one or more energy consumption devices;
a RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy to a direct current (“
DC”
) power source for recharging the rechargeable battery;
wherein the RF energy harvesting circuit includes an RF receiver tunable to a plurality of predetermined frequencies; and
wherein the RF receiver includes a user-selectable switch configured to tune the RF receiver to one of the plurality of predetermined frequencies by user actuation of the switch.
3 Assignments
0 Petitions
Accused Products
Abstract
An electronic lockset with a radio frequency harvesting circuit. In one embodiment, the electronic lockset includes a mechanical locking portion movable between a locked position and an unlocked position. One or more energy consumption devices are provided that actuate the mechanical locking portion between the locked position and the unlocked position. A rechargeable battery provides electrical power to the energy consumption devices. A radio frequency (“RF”) transmitter and RF energy harvesting circuit are used to wirelessly recharge the battery. Typically, the RF transmitter is configured to transmit at a predetermined frequency. The RF energy harvesting circuit is tuned to the predetermined frequency and is electrically coupled with the rechargeable battery to recharge the battery.
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Citations
9 Claims
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1. An electronic lockset for use with a radio frequency (“
- RF”
) transmitter configured to transmit at one or more predetermined frequencies, the electronic locket comprising;a locking device moveable between a locked position and an unlocked position; one or more energy consumption devices configured to actuate the locking device between the locked position and the unlocked position; at least one rechargeable battery configured to provide power to the one or more energy consumption devices; a RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy to a direct current (“
DC”
) power source for recharging the rechargeable battery;wherein the RF energy harvesting circuit includes an RF receiver tunable to a plurality of predetermined frequencies; and wherein the RF receiver includes a user-selectable switch configured to tune the RF receiver to one of the plurality of predetermined frequencies by user actuation of the switch. - View Dependent Claims (2, 3, 4)
- RF”
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5. An electronic deadbolt comprising:
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a bolt moveable between a locked position and an unlocked position; one or more energy consumption devices configured to actuate the bolt between the locked position and the unlocked position; at least one rechargeable battery configured to provide electrical power to the energy consumption devices; a radio frequency (“
RF”
) transmitter including a plurality of prongs configured to plug into an AC power outlet, wherein the RF transmitter is configured to transmit at a predetermined frequency;an RF energy harvesting circuit configured to be electrically coupled with the rechargeable battery, wherein the RF energy harvesting circuit is configured to convert RF energy received from the RF transmitter to a direct current (“
DC”
) power source for recharging the rechargeable battery;wherein the energy harvesting circuit includes an RF receiver tunable to a plurality of predetermined frequencies including the predetermined frequency of the RF transmitter; and wherein the RF receiver includes a user-selectable switch configured to tune the RF receiver to the predetermined frequency of the RF transmitter by user actuation of the switch. - View Dependent Claims (6, 7, 8, 9)
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Specification