Patents by Inventor Alex Dolgonos
Alex Dolgonos 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).
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Patent number: 11523866Abstract: A multicarrier ablation system comprising: an antenna for application to biological tissue; a multi-carrier signal generator configured to provide a forward radio frequency (RF) signal to the antenna, the forward RF signal comprising multiple subcarriers that occupy respective frequencies within a bandwidth of the RF signal; and a monitoring circuit configured to receive a reflected RF signal from the antenna and control the multi-carrier signal generator to adjust one or more parameters of the forward RF signal during an ablation procedure based on the reflected RF signal.Type: GrantFiled: February 13, 2019Date of Patent: December 13, 2022Assignee: UROCAM INC.Inventors: Alex Dolgonos, Karen Safaryan
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Publication number: 20200367845Abstract: According to an example aspect is an imaging system for tomographic imaging of a body portion of a patient after administration of a radiopharmaceutical, the system comprising: a surface for supporting the body portion of the patient. The system further comprises a detector assembly positioned proximate the body portion. The detector assembly comprises at least one solid-state detecting unit, which itself comprises a nuclear detector and a collimator defining a solid collection angle. The system further comprises a processor for receiving collected data from the detector assembly.Type: ApplicationFiled: February 7, 2018Publication date: November 26, 2020Inventors: Alex DOLGONOS, Karen SAFARYAN, Aaron FENSTER
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Publication number: 20190247118Abstract: A multicarrier ablation system comprising: an antenna for application to biological tissue; a multi-carrier signal generator configured to provide a forward radio frequency (RF) signal to the antenna, the forward RF signal comprising multiple subcarriers that occupy respective frequencies within a bandwidth of the RF signal; and a monitoring circuit configured to receive a reflected RF signal from the antenna and control the multi-carrier signal generator to adjust one or more parameters of the forward RF signal during an ablation procedure based on the reflected RF signal.Type: ApplicationFiled: February 13, 2019Publication date: August 15, 2019Applicant: Urocam Inc.Inventors: Alex DOLGONOS, Karen SAFARYAN
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Patent number: 8952774Abstract: A magnetic lock system for releasably securing a heat exchanger with a component. The system includes: an electromagnet on one of the heat exchanger or the component and a magnetic region on the other of the heat exchanger or the component; the electromagnet being energizable to attract the magnetic region to secure the component and the heat exchanger in a thermally coupled position; and the electromagnet being de-energizable to release the component and the heat exchanger from the thermally coupled position.Type: GrantFiled: October 30, 2012Date of Patent: February 10, 2015Assignee: 2064818 Ontario Inc.Inventor: Alex Dolgonos
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Publication number: 20080151857Abstract: An inserter is used to take data signals from an Internet access point and distribute the data signals over a local coaxial network. Wireless access points connected to the coaxial network receive the signals and broadcast them to wireless enabled devices. The wireless access points receive data signals from the wireless enabled device's and send them to the inserter over the local coaxial network.Type: ApplicationFiled: November 4, 2005Publication date: June 26, 2008Applicants: Unique Broadband Systems Ltd.Inventor: Alex Dolgonos
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Publication number: 20080107099Abstract: An ASI transport stream is processed in a way that allows the use of an RF wireless link to connect a distribution network to a transmitter in a single-frequency network. Null packets are disguised by changing the PID value of each null packet to a PID value that has been arranged to designate null packets. Each packet that contains a PCR stamp is amended to hide the presence of the PCR stamp. As a result, none of the packets in the transport stream are recognized, by elements of the RF link, as a null packet or as a packet containing a PCR stamp. Accordingly, such packets are considered, by elements of the RF link, to be packets carrying payload. Advantageously, then, packets that would normally be removed or modified by elements of the RF link pass through without being removed or modified.Type: ApplicationFiled: November 3, 2006Publication date: May 8, 2008Inventor: Alex Dolgonos
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Publication number: 20070183308Abstract: A transmitter for transmitting an OFDM signal in a communications channel, including: (a) a plurality of base-band OFDM modulators, each for modulating a respective baseband data signal onto a plurality of orthogonal sub-carriers and outputting a respective baseband sub-channel OFDM signal, and (b) a fast convolution filter and up-converter for applying fast convolution filtering and digital up-conversion to the sub-channel OFDM signals to output a combined OFDM signal that includes each of the sub-channel OFDM signals, the fast convolution and up-converter filtering each of the sub-channel OFDM signals and frequency shifting all of the sub-channel signals to respective designated frequencies within the combined OFDM signal.Type: ApplicationFiled: April 16, 2007Publication date: August 9, 2007Applicant: UNIQUE BROADBAND SYSTEMS, INC.Inventors: Dmitri Korobkov, Randy Howell, Alex Dolgonos
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Patent number: 7206350Abstract: A transmitter and corresponding method for transmitting an OFDM signal in a communications channel, including a plurality of base-band OFDM modulators, each for modulating a respective data signal onto a plurality of orthogonal sub-carriers and outputting a respective sub-channel OFDM signal; and a fast convolution filter and up-converter for applying fast convolution filtering and digital up-conversion to the sub-channel OFDM signals to output a combined OFDM signal that includes each of the sub-channel OFDM signals, the fast convolution and up-converter filtering each of the sub-channel OFDM signals and frequency shifting all of the sub-channel signals to respective designated frequencies within the combined OFDM signal. A corresponding receiver is also provided.Type: GrantFiled: June 11, 2002Date of Patent: April 17, 2007Assignee: Unique Broadband Systems, Inc.Inventors: Dmitri Korobkov, Randy Howell, Alex Dolgonos
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Publication number: 20060117361Abstract: A communications network for providing two-way data transfer, including a distribution hub, a plurality of subscriber locations for receiving downstream data signals from and transmitting upstream data signals to the distribution hub, a wired network connecting the distribution hubs to the plurality of subscriber networks, at least a portion of the wired network including a coaxial cable television plant, at least a portion of the coaxial cable television plant between the distribution hub and an intermediate location being enabled for transmitting downstream data signals, and a terminal portion of the cable television plant extending from the intermediate location to the plurality of subscriber locations being enabled for transmitting upstream and downstream data signals.Type: ApplicationFiled: November 4, 2005Publication date: June 1, 2006Inventor: Alex Dolgonos
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Patent number: 7002934Abstract: A communications system for transferring signals from a wireless transmitter to a hub station, comprising a wireless transmitter configured to transmit a data signal using multiple sub-carriers, a plurality of base stations each configured to receive the multiple sub-carrier data signal and relay the multiple sub-carrier data signal to a hub station; and a hub station configured to receive and combine the multiple sub-carrier data signals from the plurality of base stations. The wireless transmitter may use an orthogonal frequency division modulation (OFDM) scheme to transmit portions of the data signal in parallel on multiple sub-carriers.Type: GrantFiled: January 22, 2001Date of Patent: February 21, 2006Assignee: Unique Broadband Systems, Inc.Inventors: Alex Dolgonos, Deming Zhang
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Publication number: 20040153767Abstract: A method of broadcasting data files to selected mobile units, comprising steps of (a) receiving, through a bi-directional wireless network, a data request from a mobile unit, the data request including identification information for the mobile unit, (b) associating the data request with a digital data file; and (c) broadcasting the digital data file together with identification data for the mobile unit over a download channel on a broadcast network that has an overlapping coverage area with the bi-directional wireless network.Type: ApplicationFiled: September 16, 2003Publication date: August 5, 2004Inventor: Alex Dolgonos
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Publication number: 20030123383Abstract: A transmitter and corresponding method for transmitting an OFDM signal in a communications channel, including a plurality of base-band OFDM modulators, each for modulating a respective data signal onto a plurality of orthogonal sub-carriers and outputting a respective sub-channel OFDM signal; and a fast convolution filter and up-converter for applying fast convolution filtering and digital up-conversion to the sub-channel OFDM signals to output a combined OFDM signal that includes each of the sub-channel OFDM signals, the fast convolution and up-converter filtering each of the sub-channel OFDM signals and frequency shifting all of the sub-channel signals to respective designated frequencies within the combined OFDM signal. A corresponding receiver is also provided.Type: ApplicationFiled: June 11, 2002Publication date: July 3, 2003Inventors: Dmitri Korobkov, Randy Howell, Alex Dolgonos
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Publication number: 20020147978Abstract: A bi-directional point to multipoint communications system using a wired/wireless communications link for high speed mobile data transfer. A cable television plant is used in the wired portion of the communications link. Antenna nodes connected throughout the cable television plant convert downlink signals from the cable television plant into a format (such as COFDM signals) suitable for transmission over a wireless link to mobile subscriber units.Type: ApplicationFiled: April 4, 2001Publication date: October 10, 2002Inventors: Alex Dolgonos, Gregory Smith
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Publication number: 20020137464Abstract: A communications system for transferring signals from a wireless transmitter to a hub station, comprising a wireless transmitter configured to transmit a data signal using multiple sub-carriers, a plurality of base stations each configured to receive the multiple sub-carrier data signal and relay the multiple sub-carrier data signal to a hub station; and a hub station configured to receive and combine the multiple sub-carrier data signals from the plurality of base stations. The wireless transmitter may use an orthogonal frequency division modulation (OFDM) scheme to transmit portions of the data signal in parallel on multiple sub-carriers.Type: ApplicationFiled: January 22, 2001Publication date: September 26, 2002Inventors: Alex Dolgonos, Deming Zhang