SUPERIMPOSED CONVEYANCE OF DATA AND ELECTRICAL POWER
First Claim
1. A system for superimposed conveyance of data and electrical power, the system comprising:
- a switch connected between a first port and a second port, the first port configured to be connected to a supply of the electrical power, the supply being at a first voltage level;
a first controller configured to control operation of the switch;
a voltage regulator connected between the first port and the second port, the voltage regulator configured to receive the electrical power regardless of a position of the switch, the voltage regulator configured to produce a second voltage level;
current measurement circuitry connected between the first port and the switch; and
a comparator connected to the current measurement circuitry.
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Accused Products
Abstract
In a method for superimposed conveyance of data and electrical power, a first switch can cycle to convey the electric power and data from a first device. Binary digits of the data from the first device can be represented by transitions, of a voltage at a node of a second device, between a first voltage and a second voltage. A second switch can cycle to convey data from the second device. Binary digits of the data from the second device can be represented by transitions, of a current through a component of the first device, between being less than a threshold and being greater than the threshold. A voltage regulator of the second device can provide, in response to the voltage at the node being within a range of voltages that includes the first voltage and the second voltage, the electrical power to one or more components.
31 Citations
28 Claims
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1. A system for superimposed conveyance of data and electrical power, the system comprising:
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a switch connected between a first port and a second port, the first port configured to be connected to a supply of the electrical power, the supply being at a first voltage level; a first controller configured to control operation of the switch; a voltage regulator connected between the first port and the second port, the voltage regulator configured to receive the electrical power regardless of a position of the switch, the voltage regulator configured to produce a second voltage level; current measurement circuitry connected between the first port and the switch; and a comparator connected to the current measurement circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for superimposed conveyance of data and electrical power, the system comprising:
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a resistor connected between a first ground and a node, the node between a first port and a second port, the first port configured to be connected to a supply of the electrical power, the second port configured to be connected to a load; a switch connected in series with the resistor; a first controller configured to control operation of the switch; a comparator connected to the node; and a voltage regulator connected between the node and the second port. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24)
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25. A method for superimposed conveyance of data and electrical power, the method comprising:
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causing a first switch to at least one of change from a conductive state to a nonconductive state or change from the nonconductive state to the conductive state to convey the electrical power and data from a first device to a second device, the data from the first device being represented by binary digits, a first binary digit of the data from the first device being represented by a transition, of a voltage level at a node of the second device and at a specific point in a first cycle, from a first voltage level to a second voltage level, and a second binary digit of the data from the first device being represented by a transition, of the voltage level at the node of the second device and at the specific point in the first cycle, from the second voltage level to the first voltage level; causing a second switch to at least one of change from the conductive state to the nonconductive state or change from the nonconductive state to the conductive state to convey data from the second device to the first device, the data from the second device being represented by the binary digits, a first binary digit of the data from the second device being represented by a transition, of a current level through a component of the first device and at a specific point in a second cycle, from being less than a threshold current level to being greater than the threshold current level, and a second binary digit of the data from the second device being represented by a transition, of the current level through the component of the first device and at the specific point in the second cycle, from being greater than the threshold current level to being less than the threshold current level; and providing, by a voltage regulator of the second device and in response to the voltage level at the node being within a range of voltages that includes the first voltage level and the second voltage level, the electrical power, at a voltage level greater than or equal to a threshold voltage level, to at least one component. - View Dependent Claims (26, 27, 28)
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Specification