Methods and systems for last mile cable-television data transmission to subscribers over fiber-optics
OwnerDogan Atlasinventor
Life of this patent
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Abstract
A cable network system comprises: a headend; a node communicatively coupled to the headend via digital fiber-optic links, the node implementing one or more of Remote PHY (RPHY) or Remote MAC (RMAC) protocols; wherein the node comprises a first electro-optical converter configured to convert a baseband digital signal into a Frequency-Division Multiplexed (FDM) optical signal; and wherein the node is configured to send the FDM optical signal over an optical cable to a second electro-optical converter located at a user's premises, and receive an FDM optical signal from the user's premises. The sent and received FDM optical signals may be wavelength division multiplexed such that they may have at least partially overlapping frequency bands.
Claims20
A cable network system comprising:
- a headend;
- and
- a node communicatively coupled to the headend via digital fiber-optic links, the node implementing one or more of Remote PHY (RPHY) or Remote MAC (RMAC) protocols;
- wherein the node comprises a first electro-optical converter configured to convert a baseband digital signal into a Frequency-Division Multiplexed (FDM) optical signal;
- and
- wherein the node is configured to send the FDM optical signal over an optical cable to a second electro-optical converter located at a user's premises.
A telecommunications method comprising:
- sending a baseband digital signal from a headend to a node, the node implementing one or more of Remote PHY (RPHY) and Remote MAC (RMAC) protocols;
- converting, by the node via a first electro-optical converter, the baseband digital signal into a Frequency-Division Multiplexed (FDM) optical signal;
- and
- sending the FDM optical signal over an optical cable to a second electro-optical converter located at a user's premises.
Dependencies are inferred from the claim text.