Patents by Inventor Umut Basaran
Umut Basaran 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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Second-order filter with notch for use in receivers to effectively suppress the transmitter blockers
Patent number: 9413326Abstract: The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.Type: GrantFiled: July 7, 2015Date of Patent: August 9, 2016Assignee: INTEL DEUTSCHLAND GMBHInventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas -
Patent number: 9219452Abstract: One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes.Type: GrantFiled: May 22, 2012Date of Patent: December 22, 2015Assignee: Intel Deutschland GmbHInventors: Herbert Stockinger, Umut Basaran, Josef Schmal, Ashkan Naeini
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SECOND-ORDER FILTER WITH NOTCH FOR USE IN RECEIVERS TO EFFECTIVELY SUPPRESS THE TRANSMITTER BLOCKERS
Publication number: 20150318836Abstract: The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.Type: ApplicationFiled: July 7, 2015Publication date: November 5, 2015Inventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas -
Second-order filter with notch for use in receivers to effectively suppress the transmitter blockers
Patent number: 9112476Abstract: The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.Type: GrantFiled: February 27, 2012Date of Patent: August 18, 2015Assignee: Intel Deutschland GmbHInventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas -
Patent number: 8610495Abstract: Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.Type: GrantFiled: December 16, 2011Date of Patent: December 17, 2013Assignee: Intel Mobile Communications GmbHInventors: Umut Basaran, Ashkan Naeini
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Publication number: 20130316671Abstract: One embodiment of the present invention relates to a dual mode receiver that includes an RF splitter configured to operate in two modes, wherein in a first mode a single low noise amplifier is active to receive an RF input signal, and in a second mode two low noise amplifiers are active to receive the RF input signal. The receiver further includes a programmable degeneration component operably coupled to the RF splitter, and configured to provide a first performance characteristic in the first mode, and a second, different performance characteristic in the second mode, wherein the first and second performance characteristics influence an input impedance of the RF splitter to be substantially the same in the first and second modes.Type: ApplicationFiled: May 22, 2012Publication date: November 28, 2013Applicant: Intel Mobile Communications GmbHInventors: Herbert Stockinger, Umut Basaran, Josef Schmal, Ashkan Naeini
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SECOND-ORDER FILTER WITH NOTCH FOR USE IN RECEIVERS TO EFFECTIVELY SUPPRESS THE TRANSMITTER BLOCKERS
Publication number: 20130225101Abstract: The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.Type: ApplicationFiled: February 27, 2012Publication date: August 29, 2013Applicant: Intel Mobile Communications GmbHInventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas -
Patent number: 8498598Abstract: An RF-demodulator includes an RF-input, a demodulator output, a mixing and amplification stage coupled between the RF-input and the demodulator output, and a calibration circuitry. The calibration circuitry is configured to apply a calibration input signal at the RF-input and sense a resulting calibration output signal at the demodulator output to derive a gain of the mixing and amplification stage based on the relationship between the calibration output signal and the calibration input signal.Type: GrantFiled: April 13, 2011Date of Patent: July 30, 2013Assignee: Intel Mobile Communications GmbHInventor: Umut Basaran
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Publication number: 20130154728Abstract: Some embodiments of the invention relate a transimpedance amplifier circuit having a negative feedback network that provides additional filtering of an out-of-band transmitted signal is provided herein. In one embodiment, the transimpedance amplifier circuit has a first pole, transimpedance amplifier having a multi-stage operational amplifier with an input terminal and an output terminal. An RC feedback network extends from the output terminal to the input terminal. A negative feedback network, extending from an internal node of the multi-stage operational amplifier to an input terminal of the single pole, transimpedance amplifier provides a negative feedback signal with an amplitude having an opposite polarity as the out-of-band transmitted signal. The negative feedback signal suppresses the out-of-band-transmitted signals within the demodulator circuit, thereby improving linearity of the transimpedance amplifier circuit.Type: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: Infineon Technologies AGInventors: Umut Basaran, Ashkan Naeini
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Publication number: 20120264391Abstract: An RF-demodulator includes an RF-input, a demodulator output, a mixing and amplification stage coupled between the RF-input and the demodulator output, and a calibration circuitry. The calibration circuitry is configured to apply a calibration input signal at the RF-input and sense a resulting calibration output signal at the demodulator output to derive a gain of the mixing and amplification stage based on the relationship between the calibration output signal and the calibration input signal.Type: ApplicationFiled: April 13, 2011Publication date: October 18, 2012Applicant: Infineon Technologies AGInventor: Umut Basaran