Patents by Inventor Reza Rofougaran

Reza Rofougaran 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: 8437420
    Abstract: A transmitter includes a conversion module, a sample and hold module, and a discrete time bandpass filter module. The conversion module is operable to convert a first outbound baseband signal into a first outbound frequency domain pulse signal and to convert a second outbound baseband signal into a second outbound frequency domain pulse signal. The sample and hold module operable to sample and hold the first outbound frequency domain pulse signal and the second outbound frequency domain pulse signal to produce a frequency domain sample pulse train. The discrete time bandpass filter module is operable to filter the frequency domain sample pulse train to produce a first outbound wireless corresponding to the first baseband signal and to produce a second outbound wireless signal corresponding to the second inbound baseband signal.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Hooman Darabi
  • Patent number: 8438322
    Abstract: A processing module includes a fetch and decode module, an instruction register, a data register, an execution module, and a millimeter wave (MMW) transceiver section. The fetch and decode module is operable to fetch and decode an instruction of a program and to identify data associated with the instruction. The execution module is operable to execute the instruction upon the data associated with the instruction. The MMW transceiver section is operable to wirelessly receive at least one of the instruction and the data associated with the instruction from memory.
    Type: Grant
    Filed: August 30, 2008
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Timothy W. Markison
  • Patent number: 8436491
    Abstract: A low pin count IC includes a wireless power receive coil, a rectifying circuit, an output circuit, circuit modules, a power management unit (PMU), a die, and a package substrate. The wireless power receive coil generates an AC voltage from a wireless power electromagnetic signal and the rectifying circuit generates a rectified voltage from the AC voltage. The output circuit generates a DC voltage from the rectified voltage. The PMU manages distribution of the DC voltage to the circuit modules. The die supports the circuit modules and the PMU, wherein the die includes return pads for coupling to circuit return nodes and a PMU return node. The package substrate supports the die and includes return pins for coupling to the return pads, wherein at least one of the die and the package substrate support the wireless power receive coil, the rectifying circuit, and the output circuit.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Patent number: 8437711
    Abstract: An integrated circuit (IC) includes a multi-input multi-output transceiver system that includes a plurality of RF transceivers. Each RF transceiver includes an RF transmitter that transmits a transmit signal at a selected transmit power, based on a transmit power control signal and a corresponding RF receiver for receiving a corresponding one of a plurality of received signals from an external device and for generating a signal strength indication corresponding to each of the plurality of received signals. A processing module generates the transmit power control signal for each RF transmitter based on the signal strength indication of the corresponding RF receiver, and that generates a power mode signal for adjusting a power consumption parameter of each RF transmitter in accordance with the selected transmit power for each RF transmitter.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8433256
    Abstract: A communication device includes an integrated circuit having an on-chip thermal sensing circuit that generates a temperature signal based on a temperature of the integrated circuit. A processing module processes the temperature signal to generate temperature information that can be transmitted to a remote device or processes the temperature signal to generate control for adjusting transmit and/or receive characteristics of an RF transceiver.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: April 30, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8417861
    Abstract: Embodiments of the present invention are directed to a wire-free data center/server. The data center/server is wire-free in the sense that communication within a data unit of the data center/server (i.e., intra-data unit), between data units of the data center/server (inter-data unit), and between the data units and the backplane of the data center/server is performed wirelessly.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: April 9, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Arya Reza Behzad, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
  • Patent number: 8415777
    Abstract: A circuit includes a plurality of integrated circuits or dies having corresponding circuits, the plurality of integrated circuits or dies include a first plurality of integrated circuits or dies having corresponding millimeter wave interfaces and a second plurality of integrated circuits or dies having corresponding inductive interfaces. The first plurality of integrated circuits or dies communicate first signals therebetween via the corresponding millimeter wave interfaces and the second plurality of integrated circuits or dies communicate second signals therebetween via the corresponding inductive interfaces.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: April 9, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8410637
    Abstract: A wireless power system includes a wireless power transmit and receive units. The wireless power transmit unit includes a wireless power transmit circuit that generates a wireless power magnetic field and a transmit unit transceiver that transceives a communication regarding the wireless power magnetic field in accordance with a control channel protocol. The wireless power receive unit includes a wireless power receive circuit, a transceiver, and a processing module. The wireless power receive circuit converts the wireless power magnetic field into a voltage.
    Type: Grant
    Filed: May 1, 2010
    Date of Patent: April 2, 2013
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, John Walley, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Patent number: 8406704
    Abstract: A radio frequency (RF) transmitter includes a transmitter processing module that generates a processed signal and a modulating signal based on outbound data. An up-conversion module up-converts the processed signal to generate an up-converted signal. A programmable filter module generates a first plurality of delayed signals from the up-converted signal and that generates a filtered up-converted signal by combining the up-converted signal and the first plurality of delayed signals, wherein a delayed signal of the first plurality of delayed signals is scaled based on one of a first plurality of coefficients, wherein the first plurality of coefficients are selected based on a control signal. A polar amplifier amplifies and amplitude modulates the filtered up-converted signal based on the modulating signal to generate a transmit signal. A processing module generates the control signal to attenuate at least one RF spur of the up-converted signal.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: March 26, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8406716
    Abstract: A communication device includes an RF transceiver for communicating first data with at least one of a plurality of remote communication devices via a first protocol and a first frequency band. A millimeter wave transceiver communicates second data with at least one of the plurality of remote communication devices via a second protocol and a second frequency band. A communication control module coordinates the communication of the first data and the second data with the at least one of the plurality of remote communication devices and for establishing a mesh network between the communication device and the plurality of remote communication devices.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 26, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8401501
    Abstract: In integrated circuit includes a processing module that determines a selected one of the plurality of power modes based on a function being currently performed by at least one non-transceiver module of a host device, and generates a power mode signal based on the selected one of the plurality of power modes. An RF transmitter generates a transmit signal at a selected one of the plurality of operating power levels based on the power mode signal and that operates from at least one transmitter power supply signal generated and selected by a power management circuit in response to the power mode signal.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 19, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8400419
    Abstract: A touch screen can be used in a communication device having a transceiver that communicates radio frequency (RF) signals. The communication device includes an antenna and a programmable antenna interface that couples the antenna to the transceiver. The touch screen includes a display layer for displaying information. An inductor grid includes a plurality of inductive elements. A switch matrix selects an inductive element in response to a selection signal in a first mode of operation, and couples together a group of inductive elements in a second mode of operation. A dual mode driver generates the selection signal and, in the first mode of operation, drives the selected inductive element to detect a touch object in proximity to the selected inductive elements and that generates touch screen data in response thereto. In a second mode of operation, the dual mode driver couples the group of inductive elements to the programmable antenna interface.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: March 19, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8401497
    Abstract: A transceiver includes an RF receiver section having a plurality of RF receiver stages configured in parallel, and a configurable RF transmitter section. The plurality of RF receiver stages are selectively enabled in response to a control signal. The configurable RF transmitter section is configured to operate in one of: a mixed signal mode of operation and a phase modulation mode of operation, in response to the control signal.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 19, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8390249
    Abstract: A battery includes one or more rechargeable cells, a wireless power coil, a battery charger circuit, and may further include an RFID module. The wireless power coil is operable to generate an AC voltage from a wireless power electromagnetic field. The battery charger circuit is operable to generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal and, when enabled, to charge the one or more rechargeable cells via the battery charge voltage. If the battery further includes the RFID module, it is operable to generate the battery charge control signal and communicate with a wireless power transmitter device.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 5, 2013
    Assignee: Broadcom Corporation
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Patent number: 8391927
    Abstract: An antenna structure includes first and second antennas. The first antenna has a first geometry corresponding to a first frequency. The second antenna has a second geometry corresponding to a second frequency. The second antenna is proximal to the first antenna and utilizes electrical-magnetic properties of the first antenna to transceive signals at the second frequency.
    Type: Grant
    Filed: June 12, 2010
    Date of Patent: March 5, 2013
    Assignee: Broadcom Corporation
    Inventors: Jesus Alfonso Castaneda, Franco De Flaviis, Ahmadreza (Reza) Rofougaran
  • Patent number: 8385444
    Abstract: A receiver includes a bandpass filter module, a sample and hold module, a discrete time bandpass filter module, a discrete time notch filter module, a combining module, and a conversion module. The bandpass filter module filters an inbound wireless that includes a desired signal component and an undesired signal component. The sample and hold module is operable to sample and hold the filtered inbound wireless signal to produce a frequency domain sample pulse train. The discrete time bandpass filter module bandpass filters the frequency domain sample pulse train to produce a bandpass filtered sample pulse. The discrete time notch filter module notch filters the frequency domain sample pulse train to produce a notched filtered sample pulse. The combining module combines the bandpass filtered sample pulse and the notched filtered sample pulse to produce a filtered inbound signal. The conversion module converts the filtered inbound signal into an inbound baseband signal.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 26, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Hooman Darabi
  • Patent number: 8374225
    Abstract: A Voice-Data-RF IC includes a baseband processing module, an RF section, and an interface module. The baseband processing module converts an outbound voice signal into an outbound voice symbol stream, converts an inbound voice symbol stream into an inbound voice signal, converts outbound data into an outbound data symbol stream, and converts an inbound data symbol stream into inbound data. The RF section converts an inbound RF voice signal into the inbound voice symbol stream, converts the outbound voice symbol stream into an outbound RF voice signal, converts an inbound RF data signal into the inbound data symbol stream, and converts the outbound data symbol stream into an outbound RF data signal. The interface module provides coupling between the baseband processing module, the RF section, and with off-chip circuits.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: February 12, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Hooman Darabi, Frederic Christian Marc Hayem, Claude G. Hayek, Vafa James Rakshani, Nelson R. Sollenberger, Yossi Cohen
  • Patent number: 8369390
    Abstract: A wireless transceiver includes a plurality of antennas. A plurality of signal recovery circuits generate a selected number of received signals from a first subset of the plurality of antennas, based on a control signal. A receiver section recovers an inbound data stream from the selected number of received signals. A transmitter module generates a transmit signal to a selected one of the plurality of antennas, based on the control signal. The intersection between the first subset of the plurality of antennas and the selected one of the plurality of antennas is the null set for each value of the control signal. The control signals can be generated in multiple different operational modes including, for instance, a cyclic modes and a fixed mode of operation.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: February 5, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20130028349
    Abstract: A transmitter includes a conversion module, a sample and hold module, and a discrete time bandpass filter module. The conversion module is operable to convert a first outbound baseband signal into a first outbound frequency domain pulse signal and to convert a second outbound baseband signal into a second outbound frequency domain pulse signal. The sample and hold module operable to sample and hold the first outbound frequency domain pulse signal and the second outbound frequency domain pulse signal to produce a frequency domain sample pulse train. The discrete time bandpass filter module is operable to filter the frequency domain sample pulse train to produce a first outbound wireless corresponding to the first baseband signal and to produce a second outbound wireless signal corresponding to the second inbound baseband signal.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 31, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: AHMADREZA (REZA) ROFOUGARAN, HOOMAN DARABI
  • Publication number: 20130028363
    Abstract: A receiver includes a sample and hold module, a discrete time filter module, and a conversion module. The sample and hold module is operable to sample and hold a first inbound wireless signal and a second inbound wireless signal to produce a frequency domain sample pulse train. The discrete time filter module is operable to filter the frequency domain sample pulse train to produce a first filtered sample pulse corresponding to the first inbound wireless signal and to produce a second filtered sample pulse corresponding to the second inbound wireless signal. The conversion module is operable to convert the first filtered sample pulse into a first inbound baseband signal and to convert the second filtered sample pulse into a second inbound baseband signal.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 31, 2013
    Applicant: Broadcom Corporation
    Inventors: Ahmadreza (Reza) ROFOUGARAN, Hooman DARABI