Patents by Inventor Yigal Bitran

Yigal Bitran 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).

  • Publication number: 20090252137
    Abstract: A wireless communication terminal includes a radio frequency (RF) transceiver and a baseband processing circuit, which is arranged to detect an indication of a rate of movement of the terminal. The baseband processing circuit is coupled to cause the RF transceiver to scan periodically for access points that are available to communicate with the mobile terminal at a scan rate that is selected responsively to the indication, and upon detecting an available access point, to establish a wireless connection between the terminal and the available access point.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 8, 2009
    Applicant: ALTAIR SEMICONDUCTOR LTD
    Inventors: Yigal Bitran, Eitan Solomon
  • Publication number: 20090213827
    Abstract: Apparatus for communication includes at least one RF receiver circuit, which is coupled to receive and downconvert first and second RF signals that are transmitted respectively over different, first and second wireless networks in accordance with different, first and second network protocols, so as to output first and second downconverted signals. A baseband processing circuit includes processing components that are coupled to receive and process the first and second downconverted signals so as to extract first and second data from the signals. The processing components have a first configuration for demodulating the first downconverted signals in accordance with the first network protocol and a second configuration for demodulating the second downconverted signals in accordance with the second network protocol.
    Type: Application
    Filed: April 19, 2009
    Publication date: August 27, 2009
    Applicant: ALTAIR SEMICONDUCTOR LTD
    Inventors: Yigal Bitran, Eitan Solomon
  • Publication number: 20090207826
    Abstract: A method for communication includes establishing a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol that defines a sequence of time frames for transmission of data between the wireless terminal and the base station. A signal is sent from the wireless terminal to the base station identifying an interval including one or more of the time frames during which the wireless terminal will not receive data from the base station. During the interval, a second connection is established between the wireless terminal and an access point of a wireless local area network (WLAN) in accordance with a second protocol, different from the first protocol.
    Type: Application
    Filed: April 19, 2009
    Publication date: August 20, 2009
    Applicant: ALTAIR SEMICONDUCTOR LTD
    Inventors: Yigal Bitran, Eitan Solomon
  • Patent number: 7567820
    Abstract: A wireless communication terminal includes a radio frequency (RF) transceiver and a baseband processing circuit, which is arranged to detect an indication of a rate of movement of the terminal. The baseband processing circuit is coupled to cause the RF transceiver to scan periodically for access points that are available to communicate with the mobile terminal at a scan rate that is selected responsively to the indication, and upon detecting an available access point, to establish a wireless connection between the terminal and the available access point.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: July 28, 2009
    Assignee: Altair Semiconductor Ltd.
    Inventors: Yigal Bitran, Eitan Solomon
  • Patent number: 7545787
    Abstract: A method for communication includes establishing a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol that defines a sequence of time frames for transmission of data between the wireless terminal and the base station. A signal is sent from the wireless terminal to the base station identifying an interval including one or more of the time frames during which the wireless terminal will not receive data from the base station. During the interval, a second connection is established between the wireless terminal and an access point of a wireless local area network (WLAN) in accordance with a second protocol, different from the first protocol.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: June 9, 2009
    Assignee: Altair Semiconductor Ltd.
    Inventors: Yigal Bitran, Eitan Solomon
  • Patent number: 7542728
    Abstract: Apparatus for communication includes at least one RF receiver circuit, which is coupled to receive and downconvert first and second RF signals that are transmitted respectively over different, first and second wireless networks in accordance with different, first and second network protocols, so as to output first and second downconverted signals. A baseband processing circuit includes processing components that are coupled to receive and process the first and second downconverted signals so as to extract first and second data from the signals. The processing components have a first configuration for demodulating the first downconverted signals in accordance with the first network protocol and a second configuration for demodulating the second downconverted signals in accordance with the second network protocol.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: June 2, 2009
    Assignee: Altair Semiconductor Ltd.
    Inventors: Yigal Bitran, Eitan Solomon
  • Publication number: 20090129367
    Abstract: A method for communication includes allocating time intervals for a first communication session over a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol defining time frames having downlink and uplink sub-frames. Time slots are allocated for a second communication session over a second connection between the terminal and a peripheral wireless device, which operates in accordance with a second, short-range time-slotted protocol, which is different from the first protocol and has a retransmission mechanism. The time slots are synchronized with the downlink and uplink sub-frames defined by the BS. Operation of the second connection is inhibited during some of the time slots that overlap the downlink sub-frames, so as to invoke the retransmission mechanism and cause the terminal to transmit only during the time slots that do not overlap the downlink sub-frames.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 21, 2009
    Applicant: ALTAIR SEMICONDUCTOR LTD.
    Inventor: Yigal Bitran
  • Publication number: 20090088172
    Abstract: A communication terminal includes a Radio Frequency (RF) unit and a baseband processor. The RF unit is operative to receive signals from a Base Station (BS) of a wireless communication network using a communication protocol that defines time frames divided in a time domain into zones. Each zone corresponds to a respective communication mode between the BS and the terminal and occupies respective time intervals within the frames. The baseband processor is coupled to receive from the BS via the RF unit synchronization information indicating whether the time intervals allocated to at least a given zone by the BS and by at least one other BS of the wireless communication network are synchronized with one another, and to process the signals received from the BS so as to cancel, responsively to the synchronization information, interference caused to the signals by the at least one other BS.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: Altair Semiconductor Ltd.
    Inventors: Itay Lusky, Yigal Bitran
  • Patent number: 7492703
    Abstract: A system is provided to automatically estimate performance of a receiver for receiving input signals, the input signals having a carrier frequency and a baud rate, from a channel in a communication system and the effect of highly correlated noise cancellation on performance of the receiver, while no active transmission is occurring on the channel, comprising: a digital front end in the receiver for receiving samples of the input signals; a predictor coupled to the digital front end for predicting highly correlated noise in a second sample of the input signal; and a subtraction unit coupled to the predictor for subtracting the predictor output from the second sample to determine residual noise in the second sample. Other systems and methods are disclosed.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: February 17, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Itay Lusky, Daniel Wajcer, Yosef Bendel, Yigal Bitran, Naftali Sommer, Ofir Shalvi, Zvi Reznic, Ariel Yagil, Ran Senderovitz, Eli Haim
  • Publication number: 20080298316
    Abstract: A method for communication includes allocating, in a multiple-access communication system (20) that uses multiple subcarriers, first subcarriers to a first communication terminal for transmitting first data, and second subcarriers to a second communication terminal for transmitting second data. The first communication terminal is assigned to modulate the first data onto at least some of the first subcarriers using a first multi-carrier modulation scheme, to produce a first signal. The second communication terminal is assigned to modulate the second data onto at least some of the second subcarriers using a second multi-carrier modulation scheme, which has a reduced peak-to-average power ratio (PAPR) relative to the first multi-carrier modulation scheme, to produce a second signal. Simultaneous communication is carried out with the first and second communication terminals by simultaneously receiving the first and second signals over the first and second subcarriers.
    Type: Application
    Filed: January 4, 2007
    Publication date: December 4, 2008
    Applicant: Altair Semiconductor Ltd.
    Inventors: Yigal Bitran, Ariel Yagil
  • Publication number: 20080159439
    Abstract: A terminal for use in a wireless network includes a radio frequency (RF) receiver, which is configured to receive and downconvert a RF signal. The RF signal includes a sequence of downlink frames, each downlink frame including at least a map zone followed by a data zone. The map zone contains an indication of a time allocation in the data zone during which downlink data will be transmitted to the terminal. An analog/digital (A/D) converter converts the output signal from the RF receiver into a stream of digital samples. A digital processing circuit processes the digital samples so as to identify the time allocation and to recover the downlink data transmitted during the identified time allocation, while shutting down the RF receiver during at least one interval during the downlink frame that is outside the identified time allocation.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 3, 2008
    Inventor: Yigal Bitran
  • Publication number: 20080062888
    Abstract: A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.
    Type: Application
    Filed: November 13, 2007
    Publication date: March 13, 2008
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Itay Lusky, Daniel Wajcer, Yosef Bendel, Yigal Bitran, Naftali Sommer, Ofir Shalvi, Zvi Reznic, Ariel Yagil, Eli Haim
  • Publication number: 20080025422
    Abstract: A method for communication includes accepting a request from a transmitter to transmit data to a receiver in a multiple-access communication system that uses multiple subcarriers. A maximum number of the subcarriers on which the transmitter may transmit the data simultaneously without violating a predetermined signal power criterion is calculated. The transmitter is allocated a time-frequency allocation containing the maximum number of the subcarriers. The data is transmitted from the transmitter to the receiver using the allocated time-frequency allocation.
    Type: Application
    Filed: December 12, 2006
    Publication date: January 31, 2008
    Applicant: ALTAIR SEMICONDUCTOR LTD.
    Inventors: Yigal Bitran, Noah Semel
  • Patent number: 7315573
    Abstract: A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: January 1, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Itay Lusky, Daniel Wajcer, Yosef Bendel, Yigal Bitran, Naftali Sommer, Ofir Shalvi, Zvi Reznic, Ariel Yagil, Eli Haim
  • Publication number: 20070275746
    Abstract: A communication method includes establishing a first communication session over a first connection between a wireless terminal and a base station (BS) of a long-range wireless data network, which operates in accordance with a first protocol that defines a sequence of time frames. Based on the time frames defined by the BS, time slots are allocated for establishing a second communication session over a second connection between the wireless terminal and a peripheral wireless device, which operates in accordance with a second, short-range time-slotted communication protocol different from the first protocol. Time intervals are allocated within the time frames for communication between the BS and the wireless terminal over the first connection, such that the allocated time intervals are interleaved with and do not overlap the allocated time slots. The first and second communication sessions are concurrently conducted in the allocated time intervals and the assigned time slots, respectively.
    Type: Application
    Filed: December 27, 2006
    Publication date: November 29, 2007
    Inventor: Yigal Bitran
  • Patent number: 7274735
    Abstract: A method is provided to provide data to automatically estimate channel performance in a communication system if a different order constellation is used comprising the steps of: receiving an input signal from the channel; passing the input signal to a slicer having an output signal; determining signal noise by taking the difference between the input signal and output signal; identifying a beginning of a noise event when the signal noise is greater than a predefined first threshold; identifying an end of a noise event when the signal noise is less than a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 25, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Itay Lusky, Daniel Wajcer, Yosef Bendel, Yigal Bitran, Naftali Sommer, Ofir Shalvi, Zvi Reznic, Ariel Yagil, Eli Haim
  • Publication number: 20070184798
    Abstract: Apparatus for communication includes at least one RF receiver circuit, which is coupled to receive and downconvert first and second RF signals that are transmitted respectively over different, first and second wireless networks in accordance with different, first and second network protocols, so as to output first and second downconverted signals. A baseband processing circuit includes processing components that are coupled to receive and process the first and second downconverted signals so as to extract first and second data from the signals. The processing components have a first configuration for demodulating the first downconverted signals in accordance with the first network protocol and a second configuration for demodulating the second downconverted signals in accordance with the second network protocol.
    Type: Application
    Filed: December 12, 2006
    Publication date: August 9, 2007
    Applicant: ALTAIR SEMICONDUCTOR LTD.
    Inventors: Yigal Bitran, Eitan Solomon
  • Publication number: 20070183383
    Abstract: A method for communication includes establishing a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol that defines a sequence of time frames for transmission of data between the wireless terminal and the base station. A signal is sent from the wireless terminal to the base station identifying an interval including one or more of the time frames during which the wireless terminal will not receive data from the base station. During the interval, a second connection is established between the wireless terminal and an access point of a wireless local area network (WLAN) in accordance with a second protocol, different from the first protocol.
    Type: Application
    Filed: December 12, 2006
    Publication date: August 9, 2007
    Applicant: ALTAIR SEMICONDUCTOR LTD.
    Inventors: Yigal Bitran, Eitan Solomon
  • Publication number: 20070184835
    Abstract: A wireless communication terminal includes a radio frequency (RF) transceiver and a baseband processing circuit, which is arranged to detect an indication of a rate of movement of the terminal. The baseband processing circuit is coupled to cause the RF transceiver to scan periodically for access points that are available to communicate with the mobile terminal at a scan rate that is selected responsively to the indication, and upon detecting an available access point, to establish a wireless connection between the terminal and the available access point.
    Type: Application
    Filed: December 12, 2006
    Publication date: August 9, 2007
    Applicant: ALTAIR SEMICONDUCTOR LTD.
    Inventors: Yigal Bitran, Eitan Solomon
  • Patent number: 7197067
    Abstract: A method is provided for automatically optimizing parameter selection in a communication system having one or more channels for transmitting and receiving signals by the steps of: receiving a signal from a channel; characterizing impairments in the channel while gathering statistics using the received signal; analyzing the impairments to obtain recommendations for parameter modifications for improved performance; and modifying the parameters based on the recommendations. Other systems and methods are disclosed.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: March 27, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Itay Lusky, Daniel Wajcer, Yosef Bendel, Yigal Bitran, Naftali Sommer, Ofir Shalvi, Zvi Reznic, Ariel Yagil, Ran Senderovitz, Eli Haim