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US 12,683,754 B2Granted
Full duplex DOCSIS amplifier with legacy upstream support
AssigneeARRIS Enterprises LLC
InventorsMarcel F.C. Schemmann, Shamsuddin H. Chasmawala, Zhijian Sun, Brent D. Arnold
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Abstract
Devices, systems, and methods for amplifying full duplex signals that include a first frequency band shared between an FDX upstream signal and a downstream FDX signal, and a second frequency band having a legacy upstream signal, where the legacy upstream signal and the FDX upstream signal are amplified by a common amplifier.
Claims16
An amplifier circuit comprising:
- a northbound port and a southbound port, each propagating a full duplex (FDX) signal having a first frequency band that includes both an FDX upstream signal and a downstream FDX signal, and each propagating a legacy upstream signal in a second frequency band that is free from including a downstream signal;
- and
- a power amplifier that simultaneously amplifies the FDX upstream signal and the legacy upstream signal,
- at least one electrical component that isolates the FDX upstream signal from the legacy upstream signal;
- wherein the FDX upstream signal is processed by a signal processing unit after isolation from said legacy upstream signal and said FDX upstream signal is processed differently than said legacy upstream signal;
- and
- the FDX upstream signal and the legacy upstream signal are simultaneously amplified after said FDX upstream signal is processed differently than said legacy upstream signal.
4 more elements
A method comprising:
- receiving at an full duplex (FDX) amplifier circuit a full duplex downstream signal and a full duplex upstream signal that together share a first frequency band;
- receiving at the FDX amplifier a legacy upstream signal in a second frequency band that is free from including a downstream signal;
- isolating the full duplex upstream signal from the legacy upstream signal;
- after isolating the full duplex upstream signal processing in a signal processing unit the full duplex upstream signal differently than said legacy upstream signal;
- and
- simultaneously amplifying a combined signal that includes both the full duplex upstream signal and the legacy upstream signals;
- wherein the full duplex upstream signal and the legacy upstream signal are simultaneously amplified after processing the full duplex upstream signal differently than said legacy upstream signal.
4 more elements
Dependencies are inferred from the claim text.