Systems, methods, and devices for networking over high impedance cabling
First Claim
1. A system for distributing digital data and electrical power to a plurality of devices over high-impedance cables comprising:
- a gateway device connected to a power source;
a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable;
a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path; and
wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology;
wherein at least one of the first device and the second device can individually be addressed via the gateway device; and
wherein the first device and the second device comprise a respective local clock and a media clock and are configured to receive packets of data comprising timestamp information and utilize the timestamp information contained in the packets to coordinate the correct playout time for media signals between the first device and the second device.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems, methods, and processor readable media for distributing digital data and electrical power to a plurality of devices over high-impedance cables are disclosed. Certain embodiments include a gateway device connected to a power source, a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable, a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path, and wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology.
20 Citations
33 Claims
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1. A system for distributing digital data and electrical power to a plurality of devices over high-impedance cables comprising:
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a gateway device connected to a power source; a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable; a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path; and wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology; wherein at least one of the first device and the second device can individually be addressed via the gateway device; and wherein the first device and the second device comprise a respective local clock and a media clock and are configured to receive packets of data comprising timestamp information and utilize the timestamp information contained in the packets to coordinate the correct playout time for media signals between the first device and the second device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A gateway device configured to transmit digital data and electrical power to a plurality of devices over high-impedance cables comprising:
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a network port; a network interface connected to the network port, wherein the network interface is configured to receive and transmit digital data via the network port; a converter configured to receive digital data from the network interface and generate data packets suitable for transmission over a conductive path in a high-impedance cable; a coupler configured to receive the data packets and transmit said data packets over the conductive path; and a power supply unit configured to receive power from a power source and generate an output power suitable for transmission over the conductive path; wherein the gateway device is configured to transmit packets of digital data comprising timestamp information and electrical power to a first device and a second device connected via a daisy-chain topology; wherein at least one of the first device and the second device can individually be addressed via the gateway device; and wherein the first device and the second device comprise a respective local clock and a media clock and are configured to receive the packets of data comprising timestamp information and utilize the timestamp information contained in the packets to coordinate the correct playout time for media signals between the first device and the second device. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification