Patents by Inventor Danny Elad

Danny Elad 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: 20130187714
    Abstract: A frequency quadrupler comprises a balanced topology which increases broadband odd harmonic suppression. The frequency quadrupler is constructed in a cascode configuration which is a two-stage amplifier composed of a transconductance amplifier followed by a current buffer. The cascode is constructed with common emitter (CE) and common base (CB) stages which further improves the multiplier frequency response. The cascode configuration enables a notch filter to be placed between the common emitter and common base stages to reduce 2nd harmonic generation and thereby increase 4th harmonic output power, generation efficiency and conversion gain. To cancel 4th harmonic components at the input that may destructively interfere with the output signal, capacitors are placed at the input of the common emitter stage, which in conjunction with the parasitic base wire inductance, form a notch filter to short the 4th harmonic.
    Type: Application
    Filed: January 22, 2012
    Publication date: July 25, 2013
    Applicant: International Business Machines Corporation
    Inventors: Roee Ben-Yishay, Roi Carmon, Danny Elad, Oded Katz, Benny Sheinman
  • Patent number: 8476945
    Abstract: Phase profile generator systems and methods are disclosed. A system includes a signal generator, a target phase trajectory module, an error detector and a control loop filter. The signal generator is configured to generate an output signal. In addition, the target phase trajectory module is configured to track a target phase trajectory and determine a next adjustment of the output signal to conform the output signal to a portion of the target phase trajectory. Further, the error detector is configured to determine an error between the output signal and a current target phase trajectory value that precedes the portion of the target phase trajectory, where the determination of the error is independent of the next adjustment of the output signal. Moreover, the control loop filter is configured to control the signal generator in accordance with both the next adjustment and the error to generate a phase profile.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 2, 2013
    Assignee: International Business Machines Corporation
    Inventors: Danny Elad, Daniel J. Friedman, Alexander V. Rylyakov, Jose A. Tierno
  • Publication number: 20130082181
    Abstract: A THz radiation detector comprising a vertical antenna separated from a suspended platform by an isolating thermal air gap for concentrating THz radiation energy into a smaller suspended MEMS platform upon which a thermal sensor element is located. THz photon energy is converted into electrical energy via a thermally isolated air gap between plates of a coupling capacitor separated by a plurality of nano-tip spacers that determine the gap distance. The capacitor couples energy from the antenna to the thermal sensor.
    Type: Application
    Filed: June 18, 2012
    Publication date: April 4, 2013
    Applicant: International Business Machines Corporation
    Inventors: Dan Corcos, Michel Despont, Danny Elad, Bernd Gotsmann, Lukas Kull, Thomas E. Morf
  • Publication number: 20130082802
    Abstract: A novel and useful fabricated variable transmission line that is tuned digitally is presented. Digital tuning of the variable transmission line enables the compensation of process variation in both the active and passive devices of the RF design. Along with several embodiments of the variable transmission line, the present invention also provides a method of compact modeling of the variable transmission line. The variable transmission line structure and compact modeling enables circuit level simulation using a parametric device that in one embodiment can be included as an integral part of a silicon foundry design kit.
    Type: Application
    Filed: October 2, 2011
    Publication date: April 4, 2013
    Applicant: International Business Machines Corporation
    Inventors: Danny Elad, David Goren, Shlomo Shlafman
  • Publication number: 20130082345
    Abstract: A THz radiation detector comprising a vertical antenna separated from a suspended platform by an isolating thermal air gap for concentrating THz radiation energy into a smaller suspended MEMS platform upon which a thermal sensor element is located. THz photon energy is converted into electrical energy via a thermally isolated air gap between plates of a coupling capacitor that couples energy from the antenna to the thermal sensor. The capacitor plates used for capacitive coupling of the received signal realize an electro-static actuator whereby the application of a DC bias varies the coupling capacitor gap. The DC bias causes the actuator to pull the suspended platform close to the antenna to reduce the capacitive gap, increasing the coupling capacitance, to touch the antenna array thus quickly discharging the heat induced in the sensor platform or to perform advanced readout operations, such as amplitude modulation and correlated double sampling.
    Type: Application
    Filed: October 2, 2011
    Publication date: April 4, 2013
    Applicant: International Business Machines Corporation
    Inventors: Dan Corcos, Michel Despont, Danny Elad, Lukas Kull, Thomas Morf, Benny Sheinman
  • Patent number: 8354642
    Abstract: A THz radiation detector comprising a plurality of antenna arms separated from a suspended platform by an isolating thermal air gap. The detector functions to concentrate THz radiation energy into the smaller suspended MEMS platform (e.g., membrane) upon which a thermal sensor element is located. The THz photon energy is converted into electrical energy by means of a pixilated antenna using capacitive coupling in order to couple this focused energy across the thermally isolated air gap and onto the suspended membrane on which the thermal sensor is located.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: January 15, 2013
    Assignee: International Business Machines Corporation
    Inventors: Israel Berger, Danny Elad, David Goren, Thomas Erwin Morf
  • Publication number: 20120306681
    Abstract: A hybrid mm-wave imaging system which increases the probability of detection and reduces false alarm rate. The system includes a large array of passive sensors (pixels) to provide an initial coarse picture of the environment and a small array of active sensors in the center of the large array, which is activated only when the initial passive scan detection is positive. The active array, without any mechanical scanning, illuminates the area to detect edges to provide clarity to the detected image, thereby increasing the probability of detection and reducing the false alarm rate.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: International Business Machines Corporation
    Inventors: Danny Elad, Evgeny Shumaker
  • Publication number: 20120091342
    Abstract: A THz radiation detector comprising a plurality of antenna arms separated from a suspended platform by an isolating thermal air gap. The detector functions to concentrate THz radiation energy into the smaller suspended MEMS platform (e.g., membrane) upon which a thermal sensor element is located. The THz photon energy is converted into electrical energy by means of a pixilated antenna using capacitive coupling in order to couple this focused energy across the thermally isolated air gap and onto the suspended membrane on which the thermal sensor is located.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 19, 2012
    Applicant: International Business Machines Corporation
    Inventors: Israel Berger, Danny Elad, David Goren, Thomas E. Morf
  • Publication number: 20110267113
    Abstract: A multiplier circuit, including: a transistor with gate, source and drain connections adapted to accept an input signal by the transistor gate; a reference voltage source providing a DC reference voltage to the transistor drain; an inductor connected between the drain and the reference voltage source; a resistor connected in parallel to the inductor between the transistor drain and the reference voltage source; a current source providing a DC current to the transistor source; two capacitors forming a voltage divider, with the first capacitor connecting between the gate and the source and the second capacitor connecting between the source and the ground in parallel to the current source; and wherein the multiplier circuit is adapted to accept an input signal and provide as output an amplified current signal with a frequency that is double that of the input signal.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: International Business Machines Corporation
    Inventors: Roi Carmon, Danny Elad, Benny Sheinman