Patents by Inventor Kambiz Vakilian
Kambiz Vakilian 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: 11683046Abstract: The systems and methods discussed herein utilized a wireless or wired transceiver having a transmitter and a receiver. The transceiver is configured to reduce distortion contributions associated with echo cancelling. The transmitter provides a replica signal and a transmit signal. The replica signal and the transmit signal can be provided using a common switch.Type: GrantFiled: August 1, 2022Date of Patent: June 20, 2023Assignee: Avago Technologies International Sales Pte. LimitedInventors: Jingguang Wang, Jing Wang, Robert Roze, Kambiz Vakilian
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Patent number: 11507119Abstract: In some aspects, the disclosure is directed to methods and systems for providing voltage regulation and transient suppression from a battery to an integrated circuit. A resistor between a source power supply and the integrated circuit may dissipate power and reduce the voltage at the integrated circuit's input, with current through the resistor under control of an internal regulator of the integrated circuit.Type: GrantFiled: August 2, 2019Date of Patent: November 22, 2022Assignee: Avago Technologies International Sales PTE. LimitedInventors: Kambiz Vakilian, Jan Westra, Dmitrii Loukianov, Vikrant Dhamdhere, Jingguang Wang
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Publication number: 20220368335Abstract: The systems and methods discussed herein utilized a wireless or wired transceiver having a transmitter and a receiver. The transceiver is configured to reduce distortion contributions associated with echo cancelling. The transmitter provides a replica signal and a transmit signal. The replica signal and the transmit signal can be provided using a common switch.Type: ApplicationFiled: August 1, 2022Publication date: November 17, 2022Applicant: Avago Technologies International Sales Pte. LimitedInventors: Jingguang Wang, Jing Wang, Robert Roze, Kambiz Vakilian
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Patent number: 11405044Abstract: The systems and methods discussed herein utilized a wireless or wired transceiver having a transmitter and a receiver. The transceiver is configured to reduce distortion contributions associated with echo cancelling. The transmitter provides a replica signal and a transmit signal. The replica signal and the transmit signal can be provided using a common switch.Type: GrantFiled: January 28, 2021Date of Patent: August 2, 2022Assignee: Avago Technologies International Sales Pte. LimitedInventors: Jingguang Wang, Jing Wang, Robert Roze, Kambiz Vakilian
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Publication number: 20220150041Abstract: Disclosed herein are implementations of a hybrid network for use in a full duplex communication system. In one aspect, the hybrid network includes a first circuit coupled between an output of a communication channel and a shared output of a transmitter and the communication channel, a second circuit coupled between a first output of the transmitter and the shared output, a third circuit coupled between the shared output and an input of an amplifier, a fourth circuit coupled between the input of the amplifier and a second output of the transmitter, and a fifth circuit coupled between an output of the amplifier and the input of the amplifier. In some embodiments, the output of the amplifier is coupled to an input of a receiver.Type: ApplicationFiled: January 19, 2021Publication date: May 12, 2022Inventors: Jingguang Wang, Kambiz Vakilian
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Publication number: 20220149851Abstract: The systems and methods discussed herein utilized a wireless or wired transceiver having a transmitter and a receiver. The transceiver is configured to reduce distortion contributions associated with echo cancelling. The transmitter provides a replica signal and a transmit signal. The replica signal and the transmit signal can be provided using a common switch.Type: ApplicationFiled: January 28, 2021Publication date: May 12, 2022Applicant: Avago Technologies International Sales Pte. LimitedInventors: Jingguang Wang, Jing Wang, Robert Roze, Kambiz Vakilian
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Patent number: 11054447Abstract: A system for controlling the impact of process and temperature in passive signal detector includes a voltage level detector, a first transistor with a drain electrically connected to a first input of the voltage level detector, and a second transistor with a drain electrically connected to a second input of the voltage level detector. The first transistor has a threshold voltage of a first voltage value. The threshold voltage corresponds to a minimum gate-to-source voltage to create a conducting path between source and drain terminals of a transistor. The second transistor has a threshold voltage of the first voltage value. An offset voltage is applied across a gate of the first transistor and a source of the second transistor, and applied across a gate of the second transistor and a source of the first transistor. A difference between a threshold voltage and the offset voltage is constant.Type: GrantFiled: August 6, 2019Date of Patent: July 6, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Kambiz Vakilian, Jingguang Wang, Vikrant Dhamdhere
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Patent number: 11038348Abstract: A system and method includes a power control circuit for controlling first power from a power supply provided to a first circuit includes a first stage and a second stage. The first stage includes a low power energy detector and a first power switch. The low power energy detector is configured to provide second power via the first switch in response to energy. The second stage includes a signal detector configured to detect a characteristic of a signal associated with the energy in response to the second power. The signal detector is configured have the first power provided to the first circuit in response to the characteristic being detected.Type: GrantFiled: July 19, 2019Date of Patent: June 15, 2021Assignee: Avago Technologies International Sales Pte. LimitedInventors: Kambiz Vakilian, Jingguang Wang
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Publication number: 20200049741Abstract: A system for controlling the impact of process and temperature in passive signal detector includes a voltage level detector, a first transistor with a drain electrically connected to a first input of the voltage level detector, and a second transistor with a drain electrically connected to a second input of the voltage level detector. The first transistor has a threshold voltage of a first voltage value. The threshold voltage corresponds to a minimum gate-to-source voltage to create a conducting path between source and drain terminals of a transistor. The second transistor has a threshold voltage of the first voltage value. An offset voltage is applied across a gate of the first transistor and a source of the second transistor, and applied across a gate of the second transistor and a source of the first transistor. A difference between a threshold voltage and the offset voltage is constant.Type: ApplicationFiled: August 6, 2019Publication date: February 13, 2020Inventors: Kambiz Vakilian, Jingguang Wang, Vikrant Dhamdhere
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Publication number: 20200050224Abstract: In some aspects, the disclosure is directed to methods and systems for providing voltage regulation and transient suppression from a battery to an integrated circuit. A resistor between a source power supply and the integrated circuit may dissipate power and reduce the voltage at the integrated circuit's input, with current through the resistor under control of an internal regulator of the integrated circuit.Type: ApplicationFiled: August 2, 2019Publication date: February 13, 2020Inventors: Kambiz Vakilian, Jan Westra, Dmitrii Loukianov, Vikrant Dhamdhere, Jingguang Wang
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Publication number: 20190341774Abstract: A system and method includes a power control circuit for controlling first power from a power supply provided to a first circuit includes a first stage and a second stage. The first stage includes a low power energy detector and a first power switch. The low power energy detector is configured to provide second power via the first switch in response to energy. The second stage includes a signal detector configured to detect a characteristic of a signal associated with the energy in response to the second power. The signal detector is configured have the first power provided to the first circuit in response to the characteristic being detected.Type: ApplicationFiled: July 19, 2019Publication date: November 7, 2019Applicant: Avago Technologies International Sales Pte. LimitedInventors: Kambiz Vakilian, Jingguang Wang
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Patent number: 10361558Abstract: A system and method includes a power control circuit for controlling first power from a power supply provided to a first circuit includes a first stage and a second stage. The first stage includes a low power energy detector and a first power switch. The low power energy detector is configured to provide second power via the first switch in response to energy. The second stage includes a signal detector configured to detect a characteristic of a signal associated with the energy in response to the second power. The signal detector is configured have the first power provided to the first circuit in response to the characteristic being detected.Type: GrantFiled: March 11, 2016Date of Patent: July 23, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Kambiz Vakilian, Jingguang Wang
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Publication number: 20170229860Abstract: A system and method includes a power control circuit for controlling first power from a power supply provided to a first circuit includes a first stage and a second stage. The first stage includes a low power energy detector and a first power switch. The low power energy detector is configured to provide second power via the first switch in response to energy. The second stage includes a signal detector configured to detect a characteristic of a signal associated with the energy in response to the second power. The signal detector is configured have the first power provided to the first circuit in response to the characteristic being detected.Type: ApplicationFiled: March 11, 2016Publication date: August 10, 2017Applicant: BROADCOM CORPORATIONInventors: Kambiz Vakilian, Jingguang Wang
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Patent number: 7956687Abstract: The performance of an AGC loop typically depends on several factors, including gain linearity of the VGA and variation in the VGA bandwidth over the range of available gain settings. Although a resistively degenerated VGA provides for excellent gain linearity and immunity to process variations, the conventional architecture for a resistively degenerated VGA suffers from bandwidth variation over the range of available gain settings. Embodiments are provided herein of a constant-bandwidth VGA that utilizes resistive degeneration. To maintain a constant bandwidth over the range of available gain settings, degeneration resistors are coupled in parallel with compensation capacitors. In an embodiment, a compensation capacitor is determined to have a capacitance substantially equal to the decrease in total degeneration resistance that occurs as a result of an associated degeneration resistor being placed in parallel with the total degeneration resistance.Type: GrantFiled: June 10, 2009Date of Patent: June 7, 2011Assignee: Broadcom CorporationInventor: Kambiz Vakilian
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Publication number: 20100315164Abstract: The performance of an AGC loop typically depends on several factors, including gain linearity of the VGA and variation in the VGA bandwidth over the range of available gain settings. Although a resistively degenerated VGA provides for excellent gain linearity and immunity to process variations, the conventional architecture for a resistively degenerated VGA suffers from bandwidth variation over the range of available gain settings. Embodiments are provided herein of a constant-bandwidth VGA that utilizes resistive degeneration. To maintain a constant bandwidth over the range of available gain settings, degeneration resistors are coupled in parallel with compensation capacitors. In an embodiment, a compensation capacitor is determined to have a capacitance substantially equal to the decrease in total degeneration resistance that occurs as a result of an associated degeneration resistor being placed in parallel with the total degeneration resistance.Type: ApplicationFiled: June 10, 2009Publication date: December 16, 2010Applicant: Broadcom CorporationInventor: Kambiz VAKILIAN
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Patent number: 7386085Abstract: A closed-loop circuitry includes, in part, a loop filter and a current source/sink coupled to the loop filter to adjust the phase/frequency of the signal generated by the closed-loop circuitry. Because the voltage generated by the loop filter has a relatively low frequency, the current source/sink is operable at a relatively low frequency. Each current source and current sink may be a current digital-to-analog (DAC). The amount of current sourced into or sunk out of the loop filter by the current DAC is varied by setting the associated bits of a multi-bit signal. If the closed-loop circuitry is differential, a current source is coupled to the loop filter adapted to receive the differentially high signal, and a current source is coupled to the loop filter adapted to receive the differentially low signal.Type: GrantFiled: May 30, 2002Date of Patent: June 10, 2008Assignee: Broadcom CorporationInventors: Afshin Momtaz, Kambiz Vakilian
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Publication number: 20030223525Abstract: A closed-loop circuitry includes, in part, a loop filter and a current source/sink coupled to the loop filter to adjust the phase/frequency of the signal generated by the closed-loop circuitry. Because the voltage generated by the loop filter has a relatively low frequency, the current source/sink is operable at a relatively low frequency. Each current source and current sink may be a current digital-to-analog (DAC). The amount of current sourced into or sunk out of the loop filter by the current DAC is varied by setting the associated bits of a multi-bit signal. If the closed-loop circuitry is differential, a current source is coupled to the loop filter adapted to receive the differentially high signal, and a current source is coupled to the loop filter adapted to receive the differentially low signal.Type: ApplicationFiled: May 30, 2002Publication date: December 4, 2003Applicant: Broadcom CorporationInventors: Afshin Momtaz, Kambiz Vakilian