Reducing wireless interference from a wired digital interface
AssigneeARRIS Enterprises LLC
InventorDavid E. Zeidler
Life of this patent
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Abstract
Circuits and systems may be operable to provide improved wireless networking performance in the presence of a high speed wired interface. Filter circuits may be applied to wired interface leads to suppress frequency content that may interfere with wireless home networking. High speed digital wired interface systems on a chip may similarly be altered to suppress interfering frequency content before it leaves the chip. Systems with reduced radiated energy from wired interface circuits in frequencies of interest to wireless networking have improved wireless range and throughput characteristics.
Claims18
A communication apparatus containing a wired interface using a first frequency band and a wireless interface using a second frequency band, the communication apparatus comprising:
- a wired interface signal unit configured to produce a wired interface output signal having energy within the first frequency band;
- a filter configured to attenuate the wired interface output signal;
- and
- an output configured to provide the attenuated wired interface output signal to an external device, wherein the filter attenuates portions of the wired interface output signal which have energy in the second frequency band.
A method of reducing interference with a wireless communication interface from a wired interface, the method comprising:
- producing wired interface output signals wherein the energy content of the wired interface output signals in at least one frequency range used by the wireless communication interface is selectively reduced.
A non-transitory computer readable media having instructions operable to cause one or more processors to perform the operations comprising:
- receive a selection of a frequency band to be suppressed in a wired interface;
- store the configuration data recording the selection;
- select a filter appropriate to suppress the selected frequency band;
- produce a filtered wired interface signal wherein the filter suppresses frequency components of the wired interface signals which correspond with the at least one frequency band.
Dependencies are inferred from the claim text.