Patents by Inventor Marzieh Veyseh

Marzieh Veyseh 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).

  • Patent number: 10057046
    Abstract: The present disclosure relates to a method and system for calibrating transceivers by providing a stored index that was calculated of a race condition count. The race condition is based at least in part to a rat race between a clock signal and an input signal that has been sampled by a random or jitter signal. The stored index corresponds to a relative timing error between the clock signal and the sampled input signal. The stored index is used to scramble subsequent input signals that are thermo-coded signals, thereby eliminating timing errors.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 21, 2018
    Assignee: SITUNE CORPORATION
    Inventors: Hamid Nejati, Vahid M. Toosi, Saeid Mehrmanesh, Marzieh Veyseh
  • Patent number: 9924514
    Abstract: Embodiments relate generally to method, system and apparatus for wireless communications between multiple wireless sensor nodes for wireless sensor networks. More specifically, disclosed are system and method that enable wireless communications between devices using different wireless transmission protocols, via one or more multi-channel intermediate devices.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 20, 2018
    Assignee: SiTune Corporation
    Inventors: Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Patent number: 9866179
    Abstract: The present disclosure relates to methods and systems for LNAs with high linearity and low noise for wideband receivers that receive high dynamic range signals. A multi-stage multipath LNA is disclosed in which outputs from various stages are amplified with variable gains and combined in parallel. A smart gain control unit evaluates the noise and non-linearity characteristics associated with each gain stage to configure the variable gains for the various stages to generate an overall LNA gain that minimizes the overall noise and/or non-linearity characteristics of the LNA while ensuring that the overall gain for the LNA satisfies the desired gain. The variable gains may be configured to change smoothly over the dynamic range of the input signal. Noise is minimized by reducing additional gain stages and by the smooth change in gain when switching between stages. High linearity performance is maintained by minimizing the number of gain stages combined.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 9, 2018
    Assignee: SiTune Corporation
    Inventors: Saeid Mehrmanesh, Vahid M. Toosi, Marzieh Veyseh
  • Patent number: 9854592
    Abstract: Various examples describe systems and methods for dynamically and simultaneously assigned channels among multiple nodes in a network that communicates using multiple communication protocols. Aspects of the exemplary examples may include a wireless hub comprising an RF front end receiver that can capture, demodulate and decode a pre-defined band in its entirety. The wireless hub can include one or more medium access control algorithms for assigning channels for multiple nodes to access the predefined band while reduces contention between the nodes that are communicating with the wireless hub.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: December 26, 2017
    Assignee: SITUNE CORPORATION
    Inventors: Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Patent number: 9806732
    Abstract: The present disclosure relates to implementations of a method and a system for calibrating the system that includes analog-to-digital converters (ADCs). The method, performed on the system's corresponding components include, providing, from a signal generator, a first signal during a calibration mode. Parallel ADCs provide ADC outputs associated with the first signal. First parallel filters provide derivative signals associated with the ADC outputs. Second and third parallel filters provide first and second band-stop filtered signals associated with the ADC outputs and the derivative signals, respectively. The disclosure includes multiplying the first and the second band-stop filtered signals and selecting a portion of the multiplied signals that are accumulated for storage. The system incorporating these components performing these features is, accordingly, calibrated.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 31, 2017
    Assignee: SITUNE CORPORATION
    Inventors: Mahdi Khoshgard, Vahid Mesgarpour Toosi, Marzieh Veyseh
  • Publication number: 20160323897
    Abstract: Various examples describe systems and methods for dynamically and simultaneously assigned channels among multiple nodes in a network that communicates using multiple communication protocols. Aspects of the exemplary examples may include a wireless hub comprising an RF front end receiver that can capture, demodulate and decode a pre-defined band in its entirety. The wireless hub can include one or more medium access control algorithms for assigning channels for multiple nodes to access the predefined band while reduces contention between the nodes that are communicating with the wireless hub.
    Type: Application
    Filed: March 23, 2016
    Publication date: November 3, 2016
    Inventors: Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Publication number: 20160192364
    Abstract: Embodiments relate generally to method, system and apparatus for wireless communications between multiple wireless sensor nodes for wireless sensor networks. More specifically, disclosed are system and method that enable wireless communications between devices using different wireless transmission protocols, via one or more multi-channel intermediate devices.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Inventors: Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Patent number: 9225574
    Abstract: Systems and methods are described for synchronizing a receiver to a received signal and other signal processing approaches and/or components associated with the receiver. For example, a signal (e.g., a radio frequency (RF) signal such as a broadband TV signal in UHF and VHF frequencies) can be received at a receiver. Before the signal is provided to other components of the receiver, the signal can be processed in a component of the receiver commonly known as the digital front-end, where such processing can include amongst others, various synchronization and acquisition techniques.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: December 29, 2015
    Assignee: SITUNE CORPORATION
    Inventors: Mahdi Khoshgard, Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Publication number: 20150288532
    Abstract: Approaches enable multi-standard communications between wireless sensor nodes for wireless sensor networks. For example, approaches enable wireless communications between devices where each device may use a different wireless transmission protocols, via one or more multi-standard intermediate devices. The multi-standard intermediate device can include a multi-band radio frequency front-end unit that includes a first frequency digitalization pathway and a second frequency digitalization pathway, and a multi-band radio frequency back-end unit that includes a multi-band analog pathway to implement such approaches.
    Type: Application
    Filed: October 22, 2014
    Publication date: October 8, 2015
    Inventors: Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Publication number: 20150270989
    Abstract: Systems and methods are described for the implementation of a receiver that includes a channel estimation block that uses known pilots to estimate the value of channel gain and phase at data subcarrier indexes. Time interpolation as well as an auto regression filter can be to estimate the channel gain and phase at the “missing” pilot indexes as well as frequency interpolation to estimate the value of the channel at data subcarrier indexes.
    Type: Application
    Filed: January 26, 2015
    Publication date: September 24, 2015
    Inventors: Marzieh Veyseh, Mahdi Khoshgard
  • Publication number: 20150172086
    Abstract: Systems and methods are described for synchronizing a receiver to a received signal and other signal processing approaches and/or components associated with the receiver. For example, a signal (e.g., a radio frequency (RF) signal such as a broadband TV signal in UHF and VHF frequencies) can be received at a receiver. Before the signal is provided to other components of the receiver, the signal can be processed in a component of the receiver commonly known as the digital front-end, where such processing can include amongst others, various synchronization and acquisition techniques.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 18, 2015
    Applicant: SiTune Corporation
    Inventors: Mahdi Khoshgard, Marzieh Veyseh, Vahid Mesgarpour Toosi
  • Patent number: 8942303
    Abstract: Systems and methods are described for the implementation of a receiver that includes a channel estimation block that uses known pilots to estimate the value of channel gain and phase at data subcarrier indexes. Time interpolation as well as an auto regression filter can be to estimate the channel gain and phase at the “missing” pilot indexes as well as frequency interpolation to estimate the value of the channel at data subcarrier indexes.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 27, 2015
    Assignee: SiTune Corporation
    Inventors: Marzieh Veyseh, Mahdi Khoshgard
  • Patent number: 8755403
    Abstract: Systems and methods for reducing overhead by using block acknowledgment with an all polling technique while attempting to meet latency and QoS requirements. Each node transmits a number of packets upon receiving a polling message. The Access Point (AP) then replies with a Block Acknowledgement (BlockAck), which is combined with a subsequent polling message and contains a bitmap that indicates 1 for a successfully received packet and 0 for a failed reception.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: June 17, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Marzieh Veyseh, Ryosuke Fujiwara
  • Publication number: 20130114622
    Abstract: Systems and methods for reducing overhead by using block acknowledgment with an all polling technique while attempting to meet latency and QoS requirements. Each node transmits a number of packets upon receiving a polling message. The Access Point (AP) then replies with a Block Acknowledgement (BlockAck), which is combined with a subsequent polling message and contains a bitmap that indicates 1 for a successfully received packet and 0 for a failed reception.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 9, 2013
    Applicant: HITACHI, LTD.
    Inventors: Marzieh VEYSEH, Ryosuke Fujiwara
  • Patent number: 8340225
    Abstract: An IQ-imbalance of a complex receiver can be corrected by compensating the in-phase signal component and the quadrature-phase signal component produced by the complex receiver for an IQ-imbalance estimated by analyzing the in-phase signal component and the quadrature-phase signal component. A carrier signal can be received at the complex receiver. An in-phase signal component and a quadrature-phase signal component can be generated from the carrier signal. The generated in-phase signal component and the generated quadrature-phase signal component can be analyzed to estimate an IQ-imbalance. Based on the estimated IQ-imbalance, the in-phase signal component and quadrature-phase signal component can be compensated to correct the IQ-imbalance.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: December 25, 2012
    Assignee: SiTune Corporation
    Inventors: Mahdi Khoshgard, Vahid Toosi, Marzieh Veyseh
  • Publication number: 20110064166
    Abstract: An IQ-imbalance of a complex receiver can be corrected by compensating the in-phase signal component and the quadrature-phase signal component produced by the complex receiver for an IQ-imbalance estimated by analyzing the in-phase signal component and the quadrature-phase signal component. A carrier signal can be received at the complex receiver. An in-phase signal component and a quadrature-phase signal component can be generated from the carrier signal. The generated in-phase signal component and the generated quadrature-phase signal component can be analyzed to estimate an IQ-imbalance. Based on the estimated IQ-imbalance, the in-phase signal component and quadrature-phase signal component can be compensated to correct the IQ-imbalance.
    Type: Application
    Filed: October 16, 2009
    Publication date: March 17, 2011
    Applicant: SiTune Corporation
    Inventors: Mahdi Khoshgard, Vahid Toosi, Marzieh Veyseh