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Kumu Networks Inc patents


Recent patent applications related to Kumu Networks Inc. Kumu Networks Inc is listed as an Agent/Assignee. Note: Kumu Networks Inc may have other listings under different names/spellings. We're not affiliated with Kumu Networks Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "K" | Kumu Networks Inc-related inventors


Systems and methods for intelligently-tuned digital self-interference cancellation

A system for digital self-interference cancellation includes a filter that generates a reduced-noise digital residue signal; a channel estimator that generates a current self-interference channel estimate from a digital transmit signal, the reduced-noise digital residue signal, and past self-interference channel estimates; a controller that dynamically sets the digital transform configuration in response to changes in a controller-sampled digital residue signal; and a channel memory that stores the past self-interference channel estimates.. . ... Kumu Networks Inc

Systems and methods for tunable out-of-band interference mitigation

A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.. . ... Kumu Networks Inc

Systems and methods for out-of-band interference mitigation

A system for interference mitigation including a transmit coupler that samples the rf transmit signal to create a sampled rf transmit signal; a transmit analog canceller that transforms the rf transmit signal to an rf interference cancellation signal, according to a first configuration state; a first receive coupler that combines the rf interference cancellation signal and the rf receive signal to generate a composite rf receive signal; a sampling analog interference filtering system that, in order to remove interference in the transmit band, filters the sampled rf transmit signal to generate a cleaned transmit signal; a first frequency downconverter that converts the transmit signal to a bb transmit signal; a second frequency downconverter that converts the composite rf receive signal to a composite bb receive signal; and an analog-to-digital converter that converts the transmit signal to a digital transmit signal.. . ... Kumu Networks Inc

Systems and methods for modified frequency-isolation self-interference cancellation

A system for frequency isolation modified self-interference cancellation includes a transmit coupler, that samples an rf transmit signal; an rf self-interference canceller that transforms the sampled rf transmit signal to an rf self-interference cancellation signal; a receive coupler that combines the rf self-interference cancellation signal with the rf receive signal to form a reduced-interference receive signal; and a frequency shifter that frequency shifts only one of the rf transmit signal and the reduced-interference receive signal.. . ... Kumu Networks Inc

Systems and methods for adaptively-tuned digital self-interference cancellation

A method for adaptively-tuned digital self-interference cancellation includes generating a digital self-interference cancellation signal from a digital transmit signal based on a transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; generating a composite residue signal from the digital residue signal and the digital transmit signal; and updating the transform configuration based on the composite residue signal.. . ... Kumu Networks Inc

High quality factor time delay filters using multi-layer fringe capacitors

A multilayer fringe capacitor includes first and second interdigitated capacitor electrodes, both parallel to and intersecting a first planar surface; third and fourth interdigitated capacitor electrodes, the first and second electrodes parallel to and separated by a non-zero distance from the third and fourth electrodes; a first set of coupling vias that electrically couples the first electrode to the third electrode; and a second set of coupling vias that electrically couples the second electrode to the fourth electrode.. . ... Kumu Networks Inc

Integrated delay modules

An analog time delay filter circuit including a first delay circuit block arranged in a modular layout, having a first time delay filter, a first input, a first output, and first and second pass-throughs; a second delay circuit block arranged in the same modular layout, having a second time delay filter, a second input, a second output, and third and fourth pass-throughs; and an interposer circuit block that electrically couples the second input to the first pass-through and the second output to the second pass-through.. . ... Kumu Networks Inc

Systems and methods for non-linear digital self-interference cancellation

A system and method for non-linear digital self-interference cancellation including a pre-processor that generates a first pre-processed digital transmit signal from a digital transmit signal of a full-duplex radio, a non-linear transformer that transforms the first pre-processed digital transmit signal into a non-linear self-interference signal according to a transform configuration, a transform adaptor that sets the transform configuration of the non-linear transformer, and a post-processor that combines the non-linear self-interference signal with a digital receive signal of the full-duplex radio.. . ... Kumu Networks Inc

Systems and methods for self-interference canceller tuning

A system for self-interference canceller tuning includes a transmit coupler that creates a sampled analog transmit signal; an analog self-interference canceller that transforms the sampled analog transmit signal to an analog self-interference cancellation signal according to a set of tuning parameters, the set of tuning parameters comprising complex weights for a set of taps of the analog self-interference canceller; a tuning circuit that calculates the set of tuning parameters, and applies the set of tuning parameters to the analog self-interference canceller based on component calibration data of the analog self-interference canceller; and a receive coupler that combines the analog self-interference cancellation signal with the analog receive signal to reduce self-interference in the analog receive signal.. . ... Kumu Networks Inc

Systems for integrated self-interference cancellation

A system for integrated self-interference cancellation, comprising a transmit coupler, coupled to a transmit signal, that samples the transmit signal to create a sampled transmit signal; an analog self-interference canceller, coupled to the transmit coupler, comprising a controller; a signal divider, that splits the sampled transmit signal into a set of signal components; a set of phase shifters, wherein a phase shifter of the set shifts a signal component of the set of signal components by a total phase shift value; a set of scalers, wherein a scaler of the set scales the signal component by a total scale factor; a signal combiner, that combines the set of signal components into a self-interference cancellation signal; and a receive coupler, coupled to a receive signal, that combines the self-interference cancellation signal with the receive signal to remove a portion of self-interference present in the receive signal.. . ... Kumu Networks Inc

Systems and methods for adaptively-tuned digital self-interference cancellation

A method for adaptively-tuned digital self-interference cancellation comprises receiving a digital transmit signal; receiving a transform configuration; generating a set of signal components from the digital transmit signal; transforming the set of signal components into a digital self-interference cancellation signal according to the transform configuration; combining the digital self-interference cancellation signal with a receive signal to form a digital residue signal; detecting a trigger; in response to detecting the trigger: computing a ratio of the digital residue signal to the digital transmit signal; converting the ratio to the frequency-domain to form a frequency-domain-converted ratio; computing a frequency-domain self-interference channel between the transmitter and the receiver based on the frequency-domain-converted ratio; computing an inverse discrete fourier transform matrix based on a portion of the discrete fourier transform matrix; converting the frequency-domain self-interference channel to form a time-domain self-interference channel; and updating the transform configuration based on the time-domain self-interference channel.. . ... Kumu Networks Inc

Systems and methods for out-of band-interference mitigation

A system for interference mitigation including a transmit coupler that samples the rf transmit signal to create a sampled rf transmit signal; a transmit analog canceller that transforms the rf transmit signal to an rf interference cancellation signal, according to a first configuration state; a first receive coupler that combines the rf interference cancellation signal and the rf receive signal to generate a composite rf receive signal; a sampling analog canceller that transforms the rf transmit signal to a rf interference cancellation signal, according to a second configuration state; a cleaning coupler that combines the rf transmit signal and the second rf interference cancellation signal; a first frequency downconverter that converts the transmit signal to a bb transmit signal; a second frequency downconverter that converts the composite rf receive signal to a composite bb receive signal; an analog-to-digital converter that converts the transmit signal to a digital transmit signal.. . ... Kumu Networks Inc

Time delay filters

A time delay filter comprising a substrate comprising a first surface and a second surface opposite the first surface; a first lc resonator coupled to the substrate and comprising a first coupling point, a first capacitive element electrically coupled between the first coupling point and the first conductive region, and a first inductive element coupled between the first coupling point and the first conductive region, and comprising a first and second inductor tap; and a second lc resonator coupled to the substrate and comprising a second coupling point, a second capacitive element electrically coupled between the second coupling point and the first conductive region, and a second inductive element electrically coupled between the second coupling point and the first conductive region wherein the system group delays a signal output at a second coupling point relative to a signal input at the first coupling point.. . ... Kumu Networks Inc

Systems for integrated self-interference cancellation

A system for integrated self-interference cancellation, comprising a transmit coupler, coupled to a transmit signal, that samples the transmit signal to create a sampled transmit signal; an analog self-interference canceller, coupled to the transmit coupler, comprising a controller; a signal divider, that splits the sampled transmit signal into a set of signal components; a set of phase shifters, wherein a phase shifter of the set shifts a signal component of the set of signal components by a total phase shift value; a set of scalers, wherein a scaler of the set scales the signal component by a total scale factor; a signal combiner, that combines the set of signal components into a self-interference cancellation signal; and a receive coupler, coupled to a receive signal, that combines the self-interference cancellation signal with the receive signal to remove a portion of self-interference present in the receive signal.. . ... Kumu Networks Inc








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