Patents by Inventor Tzahi Oren

Tzahi Oren 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).

  • Carried recovery in re-modulation communication systems
    Patent number: 9172407
    Abstract: A communication apparatus includes transmission circuitry and a frequency conversion unit. The transmission circuitry is configured to down-convert an input Intermediate Frequency (IF) signal using a transmit (TX) Local Oscillator (LO) signal so as to produce a TX baseband signal, to up-convert the TX baseband signal to produce an output Radio Frequency (RF) signal, and to send the output RF signal to an antenna. The frequency correction unit is configured to estimate a frequency of the TX baseband signal or of the input IF signal, and to adjust the TX LO signal based on the estimated frequency so as to cause the transmission circuitry to down-convert the input IF signal to a predefined target frequency.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 27, 2015
    Assignee: Broadcom Semiconductors Israel Ltd.
    Inventors: Igal Yehuda Kushnir, Jonathan Friedmann, Ronen Shaked, Tzahi Oren
  • Carrier recovery in re-modulation communication systems
    Patent number: 8406709
    Abstract: A communication apparatus includes transmission circuitry and a frequency conversion unit. The transmission circuitry is configured to down-convert an input Intermediate Frequency (IF) signal using a transmit (TX) Local Oscillator (LO) signal so as to produce a TX baseband signal, to up-convert the TX baseband signal to produce an output Radio Frequency (RF) signal, and to send the output RF signal to an antenna. The frequency correction unit is configured to estimate a frequency of the TX baseband signal or of the input IF signal, and to adjust the TX LO signal based on the estimated frequency so as to cause the transmission circuitry to down-convert the input IF signal to a predefined target frequency.
    Type: Grant
    Filed: February 27, 2011
    Date of Patent: March 26, 2013
    Assignee: Provigent Ltd.
    Inventors: Igal (Yehuda) Kushnir, Jonathan Friedmann, Ronen Shaked, Tzahi Oren
  • CARRIER RECOVERY IN RE-MODULATION COMMUNICATION SYSTEMS
    Publication number: 20120220246
    Abstract: A communication apparatus includes transmission circuitry and a frequency conversion unit. The transmission circuitry is configured to down-convert an input Intermediate Frequency (IF) signal using a transmit (TX) Local Oscillator (LO) signal so as to produce a TX baseband signal, to up-convert the TX baseband signal to produce an output Radio Frequency (RF) signal, and to send the output RF signal to an antenna. The frequency correction unit is configured to estimate a frequency of the TX baseband signal or of the input IF signal, and to adjust the TX LO signal based on the estimated frequency so as to cause the transmission circuitry to down-convert the input IF signal to a predefined target frequency.
    Type: Application
    Filed: February 27, 2011
    Publication date: August 30, 2012
    Applicant: PROVIGENT LTD.
    Inventors: Igal Yehuda Kushnir, Jonathan Friedmann, Ronen Shaked, Tzahi Oren
  • Video channel estimation
    Publication number: 20080192843
    Abstract: There is provided herein a method of estimating a channel impulse response, the method includes using an incomplete set of orthogonal frequency division multiplexing (OFDM) symbols to estimate said impulse response. There is further provided a devise and a system which includes a device for digital video channel estimation, the devise includes a channel estimation circuitry adapted to estimate a channel impulse response using an incomplete set of orthogonal frequency division multiplexing (OFDM) symbols to estimate said impulse response.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Inventors: Roy Tenny, Roy Oren, Tzahi Oren