Patents by Inventor Jahan Ghofraniha
Jahan Ghofraniha 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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Publication number: 20220229344Abstract: A microwave imaging system is provided. The microwave imaging system comprises a dual-comb transceiver module and a processing module. The dual comb transceiver module comprises a transmitter module for transmitting an output signal, at least one receiver module for receiving the output signal from the transmitter via a channel and for generating a first output signal, and a reference receiver module for receiving a portion of the output signal transmitted by the transmitter module via an attenuator module and for generating a second output signal. Further, one or more channel parameters associated with the microwave imaging are determined based on the first output signal and the second output signal.Type: ApplicationFiled: January 12, 2022Publication date: July 21, 2022Inventors: Reza Ebrahimi Ghiri, Jahan Ghofraniha, Shih H. Mo
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Publication number: 20220229171Abstract: A microwave imaging system is provided. The microwave imaging system comprises at least one transmitter circuit and a plurality of receiver circuits. The microwave imaging system further comprises at least one direct digital synthesizer (DDS) circuit, for generating a signal that is provided as an input to each of the plurality of receiver circuits by the at least one transmitter. The microwave imaging system further comprises a clock generation module which is configured to provide a clock signal to each of the at least one transmitter circuit, the plurality of receiver circuits, and the DDS circuit.Type: ApplicationFiled: January 12, 2022Publication date: July 21, 2022Inventors: Reza Ebrahimi Ghiri, Jahan Ghofraniha, Shih H. Mo, Shen Chan, Chung-Hsing Chang
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Patent number: 9819373Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: GrantFiled: November 28, 2016Date of Patent: November 14, 2017Assignee: Redline Communications Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Patent number: 9692628Abstract: Various embodiments of wireless communication systems and methods in which the system seamlessly dual-uses a receiver chain for incoming transmissions and for other signal sensing purposes. The system is configured such that there are multiple receiver chains, and at least one receiver chain alternates between receiving a communication signal with information payload and receiving other signals solely for the purposes of monitoring and/or improving some aspects of the system. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which have passes through a power amplifier with amplifier distortion characteristics. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which may be associated with background noise, or other radio transmissions.Type: GrantFiled: November 2, 2015Date of Patent: June 27, 2017Assignee: Redline Communications Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Patent number: 9621200Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each said set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: GrantFiled: September 30, 2015Date of Patent: April 11, 2017Assignee: Redline Communications Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20170077970Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: ApplicationFiled: November 28, 2016Publication date: March 16, 2017Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Patent number: 9537686Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: GrantFiled: March 30, 2015Date of Patent: January 3, 2017Assignee: Redline Communications Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20160094376Abstract: Various embodiments of wireless communication systems and methods in which the system seamlessly dual-uses a receiver chain for incoming transmissions and for other signal sensing purposes. The system is configured such that there are multiple receiver chains, and at least one receiver chain alternates between receiving a communication signal with information payload and receiving other signals solely for the purposes of monitoring and/or improving some aspects of the system. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which have passes through a power amplifier with amplifier distortion characteristics. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which may be associated with background noise, or other radio transmissions.Type: ApplicationFiled: November 2, 2015Publication date: March 31, 2016Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20160020791Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each said set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: ApplicationFiled: September 30, 2015Publication date: January 21, 2016Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Patent number: 9209848Abstract: Various embodiments of wireless communication systems and methods in which the system seamlessly dual-uses a receiver chain for incoming transmissions and for other signal sensing purposes. The system is configured such that there are multiple receiver chains, and at least one receiver chain alternates between receiving a communication signal with information payload and receiving other signals solely for the purposes of monitoring and/or improving some aspects of the system. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which have passes through a power amplifier with amplifier distortion characteristics. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which may be associated with background noise, or other radio transmissions.Type: GrantFiled: February 2, 2014Date of Patent: December 8, 2015Assignee: Redline Innovations Group Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Patent number: 9178540Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each said set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: GrantFiled: April 3, 2014Date of Patent: November 3, 2015Assignee: Redline Innovations Group Inc.Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20150288547Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: ApplicationFiled: March 30, 2015Publication date: October 8, 2015Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20150222310Abstract: Various embodiments of wireless communication systems and methods in which the system seamlessly dual-uses a receiver chain for incoming transmissions and for other signal sensing purposes. The system is configured such that there are multiple receiver chains, and at least one receiver chain alternates between receiving a communication signal with information payload and receiving other signals solely for the purposes of monitoring and/or improving some aspects of the system. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which have passes through a power amplifier with amplifier distortion characteristics. In various embodiments, the alternating receiver chain receives alternatively signals with information payloads and signals which may be associated with background noise, or other radio transmissions.Type: ApplicationFiled: February 2, 2014Publication date: August 6, 2015Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20150222299Abstract: Various embodiments of communication systems and methods in which the communication system is operative to find, record, and use sets of pre-distortion parameters in conjunction with a pre-distortion procedure, in which each said set of pre-distortion parameters is operative to specifically counter distortions produced in a power amplifier by a specific combination of level of input signal power and level of analog gain associated with a transmission path of the communication system. In some embodiments, there is a modulator, a transmission chain, a distortion analysis mechanism, and a pre-distortion mechanism, operative to analyze and modify signals so as to counter signal distortion.Type: ApplicationFiled: April 3, 2014Publication date: August 6, 2015Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation
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Publication number: 20150223176Abstract: Various embodiments of wireless communication systems and methods in which the system applies a clipping and filtering procedures iteratively in order to reduce the peak-to-average power ratio of a transmission. In various embodiments, the clipping level changes in each iteration. In various embodiments, the clipping mechanism is a polar clipping mechanism. In various embodiments, out-of-band signal filtering is executed by a filter. In various embodiments, there is a pre-clipping process, which may be executed by a decimation mechanism, or alternatively by a zero-padding mechanism. In various embodiments, the clipping mechanism and filter are embedded in one or more processors, any one of which may be a DSP processor. In various embodiments, clipping levels are determined by a look-up table.Type: ApplicationFiled: February 2, 2014Publication date: August 6, 2015Inventors: Mohammad Janani, Jahan Ghofraniha, Med A. Nation