Patents by Inventor Peadar Antony FORBES
Peadar Antony FORBES has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10644731Abstract: Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis instead of to the entire receive band may substantially reduce the filtering requirement and number of filter coefficients or taps to save power and reduce manufacturing costs. Channelized transmitter noise cancellers, multi transmitter-receiver cross coupling cancellers, and hybrid full signal band and channelized transmitter noise cancellers are also provided.Type: GrantFiled: November 2, 2017Date of Patent: May 5, 2020Assignee: Analog Devices International Unlimited CompanyInventors: Patrick Pratt, Peadar Antony Forbes, David J. McLaurin, Martin McCormick
-
Patent number: 9912358Abstract: A method of reducing the noise from a transmitter at an associated receiver is disclosed. Noise contributions in active channels are identified and used to update a shared noise cancellation filter. Excluding signals from inactive channels speeds up the filter convergence to a near optimal solution. Sharing a filter across multiple channels reduces component count and power consumption.Type: GrantFiled: October 5, 2015Date of Patent: March 6, 2018Assignee: Analog Devices GlobalInventors: Patrick Joseph Pratt, Peadar Antony Forbes
-
Publication number: 20180062675Abstract: Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis instead of to the entire receive band may substantially reduce the filtering requirement and number of filter coefficients or taps to save power and reduce manufacturing costs. Channelized transmitter noise cancellers, multi transmitter-receiver cross coupling cancellers, and hybrid full signal band and channelized transmitter noise cancellers are also provided.Type: ApplicationFiled: November 2, 2017Publication date: March 1, 2018Inventors: Patrick Pratt, Peadar Antony Forbes, David J. McLaurin, Martin McCormick
-
Patent number: 9831898Abstract: Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis instead of to the entire receive band may substantially reduce the filtering requirement and number of filter coefficients or taps to save power and reduce manufacturing costs. Channelized transmitter noise cancellers, multi transmitter-receiver cross coupling cancellers, and hybrid full signal band and channelized transmitter noise cancellers are also provided.Type: GrantFiled: March 13, 2013Date of Patent: November 28, 2017Assignee: Analog Devices GlobalInventors: Patrick Pratt, Peadar Antony Forbes, David J. McLaurin, Martin McCormick
-
Publication number: 20160277046Abstract: A method of reducing the noise from a transmitter at an associated receiver is disclosed. Noise contributions in active channels are identified and used to update a shared noise cancellation filter. Excluding signals from inactive channels speeds up the filter convergence to a near optimal solution. Sharing a filter across multiple channels reduces component count and power consumption.Type: ApplicationFiled: October 5, 2015Publication date: September 22, 2016Inventors: Patrick Joseph Pratt, Peadar Antony Forbes
-
Patent number: 9379675Abstract: Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.Type: GrantFiled: May 20, 2014Date of Patent: June 28, 2016Assignee: Analog Devices GlobalInventors: Eamon Nash, Mingming Zhao, Ovidiu Vasile Balaj, Peadar Antony Forbes, Claire Masterson
-
Publication number: 20150236658Abstract: Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one embodiment, an indication of average power, such as root mean squared (RMS) power of a radio frequency (RF) signal, can be compared to a first threshold and an indication of a peak RF power can be compared to a second threshold. When the indication of average power exceeds the first threshold, an average overdrive event can be detected. When the indication of peak power exceeds the second threshold, a peak overdrive event can be detected. If either a transient overdrive event or an average overdrive event is detected, a circuit, such as an amplifier, can be protected.Type: ApplicationFiled: May 20, 2014Publication date: August 20, 2015Inventors: Eamon Nash, Mingming Zhao, Ovidiu Vasile Balaj, Peadar Antony Forbes, Claire Masterson
-
Patent number: 9048900Abstract: An all digital model of nonlinear transmitter signal distortion in signals received at a receiver of a transmitter-receiver may be used to estimate distortion. The estimated distortion may then be cancelled from the received signals to improve signal quality of the received signal. The digital nonlinear model may be part of an estimator circuit that estimates nonlinear distortion terms by applying a formula or transformation to a digitized version of the signals transmitter at a transmitter of the transmitter-receiver. A mixer may be used to shift a frequency of the estimated nonlinear terms away from a transmitter frequency so that the nonlinear terms can later be subtracted from the incoming signal received at the receiver at a receiver frequency. Circuits and methods are provided.Type: GrantFiled: March 12, 2013Date of Patent: June 2, 2015Assignee: ANALOG DEVICES GLOBALInventors: Patrick Pratt, Peadar Antony Forbes
-
Publication number: 20140269852Abstract: Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis instead of to the entire receive band may substantially reduce the filtering requirement and number of filter coefficients or taps to save power and reduce manufacturing costs. Channelized transmitter noise cancellers, multi transmitter-receiver cross coupling cancellers, and hybrid full signal band and channelized transmitter noise cancellers are also provided.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: Analog Devices TechnologyInventors: Patrick PRATT, Peadar Antony FORBES, David J. McLAURIN, Martin McCORMICK
-
Publication number: 20140269970Abstract: An all digital model of nonlinear transmitter signal distortion in signals received at a receiver of a transmitter-receiver may be used to estimate distortion. The estimated distortion may then be cancelled from the received signals to improve signal quality of the received signal. The digital nonlinear model may be part of an estimator circuit that estimates nonlinear distortion terms by applying a formula or transformation to a digitized version of the signals transmitter at a transmitter of the transmitter-receiver. A mixer may be used to shift a frequency of the estimated nonlinear terms away from a transmitter frequency so that the nonlinear terms can later be subtracted from the incoming signal received at the receiver at a receiver frequency. Circuits and methods are provided.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: Analog Devices TechnologyInventors: Patrick PRATT, Peadar Antony FORBES