Patents by Inventor Alexander Tykulsky

Alexander Tykulsky 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).

  • Ultrasound imaging device
    Patent number: 6497660
    Abstract: An ultrasound imaging device having a bipolar transmitter to generate a bipolar voltage signal, a transducer to emit an ultrasound wave in response to the bipolar voltage signal, and a bias generator to bias the bipolar voltage signal prior to being received by the transducer so that the biased bipolar voltage signal maintains a same polarity as a poling polarity of the transducer throughout a transmit cycle of the ultrasound imaging device. By biasing the bipolar voltage signal to maintain a same polarity as the poling polarity of the transducer throughout the transmit cycle, the ultrasound imaging device prevents depoling of the transducer which could otherwise occur if the transducer is driven by a bipolar voltage signal which repeatedly has a polarity opposite to the poling polarity of the transducer.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: December 24, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Richard F Dillman, David G Miller, Alexander Tykulsky
  • Extending sample volume in pulsed Doppler systems
    Patent number: 4640292
    Abstract: The sampling volume of a pulsed Doppler system is increased to a length greater than that corresponding to one pulse by sampling the reflections of each launched pulse a plurality of successive times and accumulating the samples.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: February 3, 1987
    Assignee: Hewlett-Packard Company
    Inventors: Alexander Tykulsky, Karl E. Thiele, Leslie I. Halberg
  • Pressure dome
    Patent number: 4185641
    Abstract: A pressure dome is provided with resilient tongues that engage projections on a transducer in such manner as to draw the dome and transducer together when one is rotated with respect to the other. Detent notches for the projection ensure that the force between a dome and the transducer is always the same.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: January 29, 1980
    Assignee: Hewlett-Packard Company
    Inventors: Thaddeus G. Minior, Alexander Tykulsky
  • High fidelity pressure transducer
    Patent number: 4129242
    Abstract: The capacitive fluid pressure transducers described herein comprise quartz bodies and diaphragms having suitable electrodes deposited thereon to form both sensing and reference capacitors in appropriate configurations for high fidelity measurement of relative blood pressure, said transducers being substantially unaffected by temperature and other environment factors.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: December 12, 1978
    Assignee: Hewlett-Packard Company
    Inventors: J. Fleming Dias, Henry E. Karrer, Alexander Tykulsky
  • High fidelity pressure transducer
    Patent number: 4064550
    Abstract: The capacitive fluid pressure transducers described herein comprise quartz bodies and diaphragms having suitable electrodes deposited thereon to form both sensing and reference capacitors in appropriate configurations for high fidelity measurement of relative blood pressure, said transducers being substantially unaffected by temperature and other environment factors.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: December 20, 1977
    Assignee: Hewlett-Packard Company
    Inventors: J. Fleming Dias, Henry E. Karrer, Alexander Tykulsky