Device and method for selectively activating a target
First Claim
1. A radio frequency activator device, comprising:
- a target interface;
a switch device connected to the target interface;
a modulator/demodulator connected to the conditional circuitry; and
an antenna connected to the modulator/demodulator.
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Accused Products
Abstract
A radio frequency activation device enables the activation of a target using RF communication. The radio frequency activation device has a switch that is initially set to a state that disables or substantially interferes with the use of a target function. Responsive to the receiving the RF communication, the switch is set to another state where the function is available. The controlled activation may apply to the target as a whole, or may apply to a selected function, module, peripheral, or component of the target. The radio frequency activation device also has a target interface that allows the target to determine the state of the switch, and based on the state of the switch, either allows or disallows the affected function. The radio frequency activation device also has an antenna for the RF communication, as well as a demodulator/modulator circuit. When used to activate an electrical or electronic device, the radio frequency activation device has a low-power circuit portion that is used to set the state of the switch responsive to the RF communication, and also has a full power circuit portion that communicates with the target. In this way, the state of the switch may be set when the target is in a power-off condition, and the target is able to determine the state of the switch when the target is activated.
110 Citations
48 Claims
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1. A radio frequency activator device, comprising:
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a target interface;
a switch device connected to the target interface;
a modulator/demodulator connected to the conditional circuitry; and
an antenna connected to the modulator/demodulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An RF device, comprising:
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a switch constructed to couple to a data, logic, or power line in a target device;
an activation circuit constructed to set the state of the switch responsive to a received RF signal;
a power source coupled to the activation circuit and available to power the activation circuit when the target is in a power-off state; and
wherein the state of the switch is selectably set when the target is in the power-off state. - View Dependent Claims (21, 22, 23, 24, 25)
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26. An RF activated target device, comprising:
an RF device, comprising;
a switch having only two states coupled to operating circuitry in the target device;
an activation circuit constructed to set the state of the switch responsive to a received RF signal;
a power source coupled to the activation circuit and available to power the activation circuit when the target is in a power-off state; and
wherein the state of the switch is selectably set when the target is in the power-off state. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. An RF activated target device, comprising:
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a connector on the target;
operating circuitry connected to a connector, the operating circuitry configured to receive operating signals through the connector at a first frequency;
a switch device, comprising;
a change effecting device coupled to the operating circuitry in the target device;
an activation circuit connected to the connector, and constructed to set the state of the change effecting device responsive to an activation signal;
a power source coupled to the activation circuit and available to power the activation circuit when the target is in a power-off state; and
wherein the state of the switch is selectably set when the target is in the power-off state. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification