Patents by Inventor Sergey Toujikov
Sergey Toujikov 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: 8594232Abstract: A post-distorter compensates for receiver nonlinearity in calibration mode. Linearized receiver-side output from the post-distorter is used to correctly compensate for transmitter-side nonlinearities in calibration mode. The post-distorter also compensates for receiver-side nonlinearities during normal receive mode. Thus, the post-distorter features dual modes of use, a calibration mode, wherein calibration signals received from the adjacent transmitter are linearized by the post-distorter and a normal receive mode, wherein communication signals from a remote transmitter are linearized by the post-distorter.Type: GrantFiled: January 26, 2012Date of Patent: November 26, 2013Assignee: Vyycore CorporationInventors: Doron Koren, Sergey Toujikov
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Publication number: 20130113559Abstract: A method and a device may be provided.Type: ApplicationFiled: January 25, 2012Publication date: May 9, 2013Applicant: VYYCORE LTD.Inventors: Doron KOREN, Sergey TOUJIKOV, Ofer LEVY
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Publication number: 20130044836Abstract: A method and a device. The device may include: a non-linear amplifying circuit for applying a non-linear gain function on an analog signal to provide an amplified signal; an input circuit, for clipping I-channel and Q-channel digital input signals, to provide clipped I-channel and Q-channel digital signals; a pre-distortion circuit, for pre-distorting the clipped I-channel and Q-channel digital signals such as to at least partially compensate for a non-linearity of the non-linear gain function, to provide pre-distorted I-channel and Q-channel digital signals; a mixed signal circuit for converting the pre-distorted I-channel and Q-channel digital signals to the analog signal; a reconstruction circuit for generating reconstructed I-channel and Q-channel signals; and a control circuit, arranged to: calculate an error attribute based on the clipped and the reconstructed I-channel and Q-channel digital signals and to affect a gain of at least one components of the device in response to the error attribute.Type: ApplicationFiled: August 18, 2011Publication date: February 21, 2013Applicant: VYYCORE LTD.Inventors: DORON KOREN, SERGEY TOUJIKOV, Ofer Levy
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Patent number: 8362837Abstract: A system and a method are provided. The system may include (A) a measurement circuit arranged to measure at least a current power level of the input signal; (B) multiple non-linear power amplifiers; wherein different non-linear power amplifiers are associated with different power ranges; (C) a control circuit arranged to: (a) select at least one selected non-linear power amplifier to be used to amplify a second signal based on at least: (i) the current power level of an input signal; (ii) an association between the different power ranges and the different non-linear power amplifiers; (iii) an identity of at least one previously selected non-linear power amplifier; and (b) assist in an activation of the at least one selected non-linear power amplifier; and (D) a signal processing module, configured to process the input signal to provide the second signal such as to at least partially compensate for a non-linearity of each of the at least one selected non-linear power amplifier.Type: GrantFiled: May 23, 2011Date of Patent: January 29, 2013Assignee: Vyycore Ltd.Inventors: Doron Shahar Koren, Sergey Toujikov
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Patent number: 8324953Abstract: A system for processing an input signal, the system including: (a) a hardware memory module configured to store a lookup table; and (b) a signal processing module, configured to clip the input signal to provide a second signal that does not exceed a magnitude threshold, wherein the signal processing module is configured to clip the input signal by processing the input signal using at least one filtering parameter that is retrieved from the lookup table using at least one lookup table index which is selected in response to the input signal.Type: GrantFiled: October 21, 2009Date of Patent: December 4, 2012Assignee: Vyycore Ltd.Inventors: Doron Shahar Koren, Sergey Toujikov
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Publication number: 20120299644Abstract: A system and a method are provided. The system may include (A) a measurement circuit arranged to measure at least a current power level of the input signal; (B) multiple non-linear power amplifiers; wherein different non-linear power amplifiers are associated with different power ranges; (C) a control circuit arranged to: (a) select at least one selected non-linear power amplifier to be used to amplify a second signal based on at least: (i) the current power level of an input signal; (ii) an association between the different power ranges and the different non-linear power amplifiers; (iii) an identity of at least one previously selected non-linear power amplifier; and (b) assist in an activation of the at least one selected non-linear power amplifier; and (D) a signal processing module, configured to process the input signal to provide the second signal such as to at least partially compensate for a non-linearity of each of the at least one selected non-linear power amplifier.Type: ApplicationFiled: May 23, 2011Publication date: November 29, 2012Inventors: Doron Shahar KOREN, Sergey Toujikov
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Patent number: 8295790Abstract: A method and an apparatus.Type: GrantFiled: December 10, 2009Date of Patent: October 23, 2012Assignee: Vyycore Ltd.Inventors: Doron Shahar Koren, Sergey Toujikov
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Publication number: 20120120990Abstract: A post-distorter compensates for receiver nonlinearity in calibration mode. Linearized receiver-side output from the post-distorter is used to correctly compensate for transmitter-side nonlinearities in calibration mode. The post-distorter also compensates for receiver-side nonlinearities during normal receive mode. Thus, the post-distorter features dual modes of use, a calibration mode, wherein calibration signals received from the adjacent transmitter are linearized by the post-distorter and a normal receive mode, wherein communication signals from a remote transmitter are linearized by the post-distorter.Type: ApplicationFiled: January 26, 2012Publication date: May 17, 2012Applicant: VYYCORE CORPORATIONInventors: Doron Koren, Sergey Toujikov
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Patent number: 8143943Abstract: A system for processing an input signal, the system includes: a hardware memory module configured to store a lookup table; and a signal processing module, configured to process the input signal to provide a second signal, and to transmit the second signal to a power amplifier that is characterized by non-linearity and which is adapted to amplify the second signal to provide an amplified signal; wherein the signal processing module is configured to process the input signal in response to at least one filtering parameter to provide the second signal so as to at least partly compensate for the non-linearity of the amplifier; wherein the at least one filtering parameter is retrieved from the lookup table using a first, a second, and a third lookup table indexes, wherein the first index is responsive to a magnitude of the input signal at a first moment, the second index is responsive to a magnitude of the input signal at a second moment, and the third index is responsive to phases of the input signal at the firstType: GrantFiled: November 23, 2010Date of Patent: March 27, 2012Assignee: Vyycore Ltd.Inventors: Doron Shahar Koren, Sergey Toujikov
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Patent number: 8126036Abstract: A post-distorter compensates for receiver nonlinearity in calibration mode. Linearized receiver-side output from the post-distorter is used to correctly compensate for transmitter-side nonlinearities in calibration mode. The post-distorter also compensates for receiver-side nonlinearities during normal receive mode. Thus, the post-distorter features dual modes of use, a calibration mode, wherein calibration signals received from the adjacent transmitter are linearized by the post-distorter and a normal receive mode, wherein communication signals from a remote transmitter are linearized by the post-distorter.Type: GrantFiled: June 21, 2008Date of Patent: February 28, 2012Assignee: Vyycore CorporationInventors: Doron Koren, Sergey Toujikov
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Publication number: 20110148520Abstract: A system for processing an input signal, the system includes: a hardware memory module configured to store a lookup table; and a signal processing module, configured to process the input signal to provide a second signal, and to transmit the second signal to a power amplifier that is characterized by non-linearity and which is adapted to amplify the second signal to provide an amplified signal; wherein the signal processing module is configured to process the input signal in response to at least one filtering parameter to provide the second signal so as to at least partly compensate for the non-linearity of the amplifier; wherein the at least one filtering parameter is retrieved from the lookup table using a first, a second, and a third lookup table indexes, wherein the first index is responsive to a magnitude of the input signal at a first moment, the second index is responsive to a magnitude of the input signal at a second moment, and the third index is responsive to phases of the input signal at the firstType: ApplicationFiled: November 23, 2010Publication date: June 23, 2011Inventors: Doron Shahar Koren, Sergey Toujikov
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Publication number: 20110140779Abstract: A method and an apparatus.Type: ApplicationFiled: December 10, 2009Publication date: June 16, 2011Inventors: Doron Shahar Koren, Sergey Toujikov
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Patent number: 7948310Abstract: A system for processing an input signal, the system including: (a) a hardware memory module configured to store a lookup table; and (b) a signal processing module, configured to process the input signal to provide a second signal, and to transmit the second signal to a power amplifier that is characterized by non-linearity and which is adapted to amplify the second signal to provide an amplified signal; wherein the signal processing module is configured to process the input signal in response to at least one filtering parameter to provide the second signal so as to at least partly compensate for the non-linearity of the amplifier; wherein the at least one filtering parameter is retrieved from the lookup table using a first, a second, and a third lookup table indexes, wherein the first index is responsive to a magnitude of the input signal at a first moment, the second index is responsive to a magnitude of the input signal at a second moment, and the third index is responsive to phases of the input signal at tType: GrantFiled: July 8, 2009Date of Patent: May 24, 2011Assignee: Vyycore Ltd.Inventors: Doron Shahar Koren, Sergey Toujikov
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Publication number: 20110006842Abstract: A system for processing an input signal, the system including: (a) a hardware memory module configured to store a lookup table; and (b) a signal processing module, configured to process the input signal to provide a second signal, and to transmit the second signal to a power amplifier that is characterized by non-linearity and which is adapted to amplify the second signal to provide an amplified signal; wherein the signal processing module is configured to process the input signal in response to at least one filtering parameter to provide the second signal so as to at least partly compensate for the non-linearity of the amplifier; wherein the at least one filtering parameter is retrieved from the lookup table using a first, a second, and a third lookup table indexes, wherein the first index is responsive to a magnitude of the input signal at a first moment, the second index is responsive to a magnitude of the input signal at a second moment, and the third index is responsive to phases of the input signal at tType: ApplicationFiled: July 8, 2009Publication date: January 13, 2011Inventors: Doron Shahar KOREN, Sergey Toujikov
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Publication number: 20090316826Abstract: A post-distorter compensates for receiver nonlinearity in calibration mode. Linearized receiver-side output from the post-distorter is used to correctly compensate for transmitter-side nonlinearities in calibration mode. The post-distorter also compensates for receiver-side nonlinearities during normal receive mode. Thus, the post-distorter features dual modes of use, a calibration mode, wherein calibration signals received from the adjacent transmitter are linearized by the post-distorter and a normal receive mode, wherein communication signals from a remote transmitter are linearized by the post-distorter.Type: ApplicationFiled: June 21, 2008Publication date: December 24, 2009Applicant: VYYCORE CORPORATIONInventors: Doron Koren, Sergey Toujikov