ANALOG COMPENSATOR CIRCUIT TO COMPENSATE FOR CABLE LOSS
First Claim
1. A system comprising:
- comparator logic circuitry configured to compare a received communication signal to a reference signal, wherein the received communication signal is received from a power cable;
amplification logic circuitry configured to amplify the received communication signal and output a corrected output signal, wherein the corrected output signal is set high in response to the received communication signal being greater than the reference signal and wherein the corrected output signal is set low in response to the received communication signal being less than the reference signal; and
a power supply configured to decode the corrected output signal and adjust a power output to the power cable.
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Accused Products
Abstract
Apparatus, systems and methods for correcting data received from a power cable is presented. A method receives communication data from a near end of a cable that has near and far ends. The data is compared using hysteresis to a high threshold and/or a low threshold. The data is reset to produce corrected data by resetting the data to either a high value or a low value based on the comparing. For example, when the corrected data is high, the data is reset to a low value when the communication data crosses the low threshold and when the corrected data is low, the data is reset to a high value when the communication data crosses the high threshold. The corrected data can provide a power supply data needed so that it can more accurately provide a power through the cable to the far end of the cable.
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Citations
20 Claims
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1. A system comprising:
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comparator logic circuitry configured to compare a received communication signal to a reference signal, wherein the received communication signal is received from a power cable; amplification logic circuitry configured to amplify the received communication signal and output a corrected output signal, wherein the corrected output signal is set high in response to the received communication signal being greater than the reference signal and wherein the corrected output signal is set low in response to the received communication signal being less than the reference signal; and a power supply configured to decode the corrected output signal and adjust a power output to the power cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for supplying power to a cable comprising:
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a cable with a near end and a far end; a comparator located in the near end of the cable; a controller located in the far end of the cable; an inverting device; a voltage input device at the far end of the cable to input a voltage into the controller; a single communication wire located between the comparator and the inverting device; a second wire between the inverting device and the controller; and wherein the controller is configured to communicate data to the inverter that inverts the data to create inverted data, wherein the comparator is configured to compare the inverted data to at least one reference voltage and to generate corrected data based, at least in part, on the comparison of the inverted data to the at least one reference voltage, wherein the cable is configured to communicate the corrected data to a power supply at the near end of the cable so that the power supply can supply a power through the cable to the far end of the cable. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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receiving communication data from a near end of a cable that has a near end and a far end; comparing the data using hysteresis to at least one of the group of;
a reference threshold, a high threshold, and a low threshold;resetting the data to produce corrected data, wherein the resetting comprises resetting the data to a high value or a low value based, at least in part, on the comparing; and wherein the corrected data can provide a power supply at least one parameter needed for supplying a power at the far end of the cable. - View Dependent Claims (18, 19, 20)
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Specification