Patents by Inventor Brian R Wiese
Brian R Wiese 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).
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Patent number: 9160381Abstract: A method and apparatus to align data blocks in a data signal and a reference signal to increase cross-correlation between the data signal and the reference signal as compared to the unaligned data and reference signals and cancel interference in the data signal in the frequency-domain under changing conditions and in the presence of the data signal.Type: GrantFiled: December 6, 2013Date of Patent: October 13, 2015Assignee: Broadcom CorporationInventors: Brian R. Wiese, Philip Desjardins, Jayasuryan Iyer
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Patent number: 8605837Abstract: A method and apparatus to align data blocks in a data signal and a reference signal to increase cross-correlation between the data signal and the reference signal as compared to the unaligned data and reference signals and cancel interference in the data signal in the frequency-domain under changing conditions and in the presence of the data signal.Type: GrantFiled: October 10, 2008Date of Patent: December 10, 2013Assignee: Broadcom CorporationInventors: Brian R. Wiese, Philip Desjardins, Jayasuryan Iyer
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Patent number: 7907659Abstract: In an embodiment, a DSL communication device comprising a line interface circuit is disclosed. The line interface circuit includes a hybrid circuit to interface the communication device to a communication line, a lowpass transmit filter to pass signals in a first frequency band, and a highpass transmit filter to pass signals in a second frequency band, where the second frequency band is higher in frequency than the first frequency band. The outputs of the highpass and lowpass filters are coupled in parallel to the communication line. The lowpass and highpass filters as well as the low and highpass transformers are optimized for their frequency bands. Further, the edges of the low and high frequency bands are sufficiently separated to reduce interference from the other frequency band. These factors, in part, allow a multiple tone communication device to be capable of operating in multiple modes of operation with multiple DSL varieties.Type: GrantFiled: October 2, 2007Date of Patent: March 15, 2011Assignee: 2Wire, Inc.Inventors: James T. Schley-May, Brian R. Wiese
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Publication number: 20100091827Abstract: A method and apparatus to align data blocks in a data signal and a reference signal to increase cross-correlation between the data signal and the reference signal as compared to the unaligned data and reference signals and cancel interference in the data signal in the frequency-domain under changing conditions and in the presence of the data signal.Type: ApplicationFiled: October 10, 2008Publication date: April 15, 2010Inventors: Brian R. Wiese, Philip Desjardins, Jayasuryan Iyer
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Publication number: 20090086799Abstract: In an embodiment, a DSL communication device comprising a line interface circuit is disclosed. The line interface circuit includes a hybrid circuit to interface the communication device to a communication line, a lowpass transmit filter to pass signals in a first frequency band, and a highpass transmit filter to pass signals in a second frequency band, where the second frequency band is higher in frequency than the first frequency band. The outputs of the highpass and lowpass filters are coupled in parallel to the communication line. The lowpass and highpass filters as well as the low and highpass transformers are optimized for their frequency bands. Further, the edges of the low and high frequency bands are sufficiently separated to reduce interference from the other frequency band. These factors, in part, allow a multiple tone communication device to be capable of operating in multiple modes of operation with multiple DSL varieties.Type: ApplicationFiled: October 2, 2007Publication date: April 2, 2009Applicant: 2WIRE, INC.Inventors: JAMES T. SCHLEY-MAY, Brian R. Wiese
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Patent number: 7184467Abstract: The present invention provides for a method and apparatus for allocating data to subchannels used for ADSL transmission over a communication link which supports further system transmissions. An expected interference impact from the further system transmissions is estimated for the ADSL subchannels. Signal-to-noise ratios (SNRs) for the subchannels are determined for bit loading by an estimator (220). In one embodiment, actual noise associated with the communication link is used at initialization to determine a SNR which is subsequently modified by an adjusting unit (205) prior to bit loading responsive to the estimated interference impact. In another embodiment, a virtual noise signal, indicative of the estimated interference impact and generated by a noise signal generator (235), is summed with the actual noise prior to determining a SNR for bit loading.Type: GrantFiled: November 14, 2002Date of Patent: February 27, 2007Assignee: Texas Instruments IncorporatedInventors: Krista S. Jacobsen, Michael D. Agah, Brian R. Wiese
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Patent number: 6922448Abstract: The present invention provides a system and method of an upstream power back-off in a very high rate Digital Subscriber Line (VDSL) system. The method is based on a global desired receive PSD (GDR PSD), which is used to determine an upstream power back-off algorithm. The GDR PSD is transmitted from the transceiver at the LT to the NT during initialization. The NT determines an upstream transmit power spectral density for data transmission using the received GDR PSD and a determined insertion loss of the loop on which it resides.Type: GrantFiled: November 17, 2000Date of Patent: July 26, 2005Assignee: Texas Instruments IncorporatedInventors: Krista S Jacobsen, Brian R Wiese, Celite Milbrandt
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Publication number: 20030123560Abstract: The present invention provides for a method and apparatus for allocating data to subchannels used for ADSL transmission over a communication link which supports further system transmissions. An expected interference impact from the further system transmissions is estimated for the ADSL subchannels. Signal-to-noise ratios (SNRs) for the subchannels are determined for bit loading by an estimator (220). In one embodiment, actual noise associated with the communication link is used at initialization to determine a SNR which is subsequently modified by an adjusting unit (205) prior to bit loading responsive to the estimated interference impact. In another embodiment, a virtual noise signal, indicative of the estimated interference impact and generated by a noise signal generator (235), is summed with the actual noise prior to determining a SNR for bit loading.Type: ApplicationFiled: November 14, 2002Publication date: July 3, 2003Inventors: Krista S. Jacobsen, Michael D. Agah, Brian R. Wiese
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Patent number: 6456673Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: GrantFiled: November 30, 1999Date of Patent: September 24, 2002Assignee: Amati Communications CorporationInventors: Brian R. Wiese, John A. C. Bingham
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Patent number: 6449324Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: GrantFiled: May 24, 2001Date of Patent: September 10, 2002Assignee: Texas Instruments IncorporatedInventors: Brian R. Wiese, John A. C. Bingham
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Patent number: 6404830Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: GrantFiled: May 24, 2001Date of Patent: June 11, 2002Assignee: Texas Instruments IncorporatedInventors: Brian R. Wiese, John A. C. Bingham
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Publication number: 20010028692Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: ApplicationFiled: May 24, 2001Publication date: October 11, 2001Inventors: Brian R. Wiese, John A.C. Bingham
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Publication number: 20010026602Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: ApplicationFiled: May 24, 2001Publication date: October 4, 2001Inventors: Brian R. Wiese, John A.C. Bingham
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Patent number: 6014412Abstract: Disclosed are radio frequency (RF) interference cancellation techniques that effectively estimate RF interference to the data signals being received using a frequency domain model, and then remove the estimated RF interference from the received data signals. Improved techniques for digitally filtering multicarrier modulation samples to reduce sidelobe interference due to the RF interference are also disclosed.Type: GrantFiled: April 4, 1997Date of Patent: January 11, 2000Assignee: Amati Communications CorporationInventors: Brian R. Wiese, John A. C. Bingham