Data signal transceiver circuitry for providing simultaneous bi-directional communication via a common conductor pair
US8923166B2 · kind B2 · utility
1Cited by
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15Claims
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Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0298
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Interface circuitry and method for transmitting and receiving downstream and upstream data signals simultaneously via a common conductor pair. The composite signal containing the downstream and upstream data signal components being conveyed by the common conductor pair is isolated, e.g., via signal filtering or buffering, and combined with an appropriately scaled inverse replica of the outgoing upstream data signal to subtract out upstream data signal components and thereby provide the downstream data signal substantially free of any upstream data signal components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.