Patents by Inventor Charles Abraham
Charles Abraham 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: 12573814Abstract: Aspects of the present disclosure may address the problem of coupling a radio-frequency (RF) input signal to a light-frequency emitting diode, where the output impedance of the device providing the input signal and the diode input impedance differ. A coupler according to aspects of the present disclosure may be a capacitive coupler that may take the form of parallel concentric coils, which may be comprised of wire or metal plate coils, or parallel plates, connected in series with a variable capacitive element. According to a further aspect of the present disclosure, parallel concentric coils and parallel plates may be arranged in parallel, and the input signal to the coupler may be switched to one or the other. The switching may be automated, based on frequency content or amplitude of the input signal.Type: GrantFiled: August 5, 2022Date of Patent: March 10, 2026Assignee: SATIUS HOLDING, LLCInventor: Charles Abraham
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Publication number: 20250055247Abstract: Aspects of the present disclosure may address the problem of coupling an input signal to a high-power laser device, where the output impedance of the device providing the input signal and the laser device input impedance differ. A coupler according to aspects of the present disclosure may be a capacitive coupler that may include parallel concentric coils, which may be comprised of wire or metal plate coils, or parallel plates, which may, in turn, be connected in series with a variable capacitive element. According to a further aspect of the present disclosure, parallel concentric coils and/or parallel plates may be arranged in parallel, and the input signal to the capacitive coupler may be switched to one or the other. The switching may be automated, based on frequency content or amplitude of the input signal.Type: ApplicationFiled: March 4, 2024Publication date: February 13, 2025Inventor: Charles ABRAHAM
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Publication number: 20240047938Abstract: Aspects of the present disclosure may address the problem of coupling a radio-frequency (RF) input signal to a light-frequency emitting diode, where the output impedance of the device providing the input signal and the diode input impedance differ. A coupler according to aspects of the present disclosure may be a capacitive coupler that may take the form of parallel concentric coils, which may be comprised of wire or metal plate coils, or parallel plates, connected in series with a variable capacitive element. According to a further aspect of the present disclosure, parallel concentric coils and parallel plates may be arranged in parallel, and the input signal to the coupler may be switched to one or the other. The switching may be automated, based on frequency content or amplitude of the input signal.Type: ApplicationFiled: August 5, 2022Publication date: February 8, 2024Inventor: Charles ABRAHAM
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Patent number: 11152971Abstract: The present invention provides an FM Orthogonal Frequency Division Multiplexing (OFDM) modulation process that enable high-speed data communications over any transmission media and networks. The process is implemented with a modem device modulator and demodulator that provides communication with several other modem devices along any communication media that uses an FM OFDM modulation technique, a physical transmission medium such as power lines, or wireless (air), or cable, or twisted pairs communication media.Type: GrantFiled: February 2, 2004Date of Patent: October 19, 2021Inventors: Charles Abraham, Hongbo Yan, James Fisch, John Jarels, Alexander M. Sutton
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Patent number: 10897283Abstract: The present invention provides an FM Orthogonal Frequency Division Multiplexing (OFDM) modulation process that enable high-speed data communications over any transmission media and networks. The process is implemented with a modem device modulator and demodulator that provides communication with several other modem devices along any communication media that uses an FM OFDM modulation technique, a physical transmission medium such as power lines, or wireless (air), or cable, or twisted pairs communication media.Type: GrantFiled: July 9, 2019Date of Patent: January 19, 2021Inventors: Charles Abraham, Hongbo Yan, James Fisch, Alexander M. Sutton
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Patent number: 10520606Abstract: Method and apparatus for receiving an estimate of time in a satellite signal receiver receives an estimate of time from a server and compensates for error of a clock in the satellite signal receiver using the estimate of time. The output of the compensated clock is used when computing a position of the satellite signal receiver. The estimate of time is received using a network time protocol (NTP), a simple network time protocol (SNTP), or by one-way broadcast from the server.Type: GrantFiled: June 8, 2009Date of Patent: December 31, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Charles Abraham, Sergei Podshivalov, Frank van Diggelen
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Publication number: 20190334580Abstract: The present invention provides an FM Orthogonal Frequency Division Multiplexing (OFDM) modulation process that enable high-speed data communications over any transmission media and networks. The process is implemented with a modem device modulator and demodulator that provides communication with several other modem devices along any communication media that uses an FM OFDM modulation technique, a physical transmission medium such as power lines, or wireless (air), or cable, or twisted pairs communication media.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Inventors: Charles Abraham, Hongbo Yan, James Fisch, Alexander M. Sutton
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Patent number: 9961618Abstract: A geo-fence capable device is disclosed that is capable of performing an accurate geo-fence operation while minimizing power consumption. The device includes sensors, Wi-Fi connectability and GNSS. Sensors intermittently detect whether the device is in motion. When determined to be in motion, Wi-Fi is used to acquire a wireless access point list and to compare the access point list to previously-stored access points in order to determine whether the device is still within a particular region. GNSS is used to confirm exit from a region and to intermittently monitor whether the device has entered a new region. GNSS and application processor use can be minimized by utilizing sensor and Wi-Fi functionality as preliminary region monitors.Type: GrantFiled: March 6, 2015Date of Patent: May 1, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Charles Abraham, Frank van Diggelen
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Patent number: 9651675Abstract: A GNSS enabled device that is communicatively coupled to a network, receives time stamps via the network. The time stamps are generated based on reference clock signals within the network. GNSS receiver clock signal frequency may be adjusted based on the time stamps. When GNSS satellite signals and/or SRN signals are not available, the time stamps enable synchronization with GNSS satellites. Network clock signals and/or time stamps may be generated by an access point, a DSL modem, a cable modem and/or a primary reference clock within the network. A series of time stamps may be utilized for adjusting frequencies. Clock signals may be generated for adjusting frequencies based on a comparison between time stamps and oscillator or mixer output. Clock signals are generated for baseband, intermediate and/or RF frequency signal processing. GNSS satellite signals may be demodulated, correlated with a pseudonoise code sequence and/or synchronized based on the time stamps.Type: GrantFiled: March 26, 2010Date of Patent: May 16, 2017Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Jeyhan Karaoguz, Charles Abraham, Mark Buer, David Garrett, David Albert Lundgren, David Murray
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Patent number: 9473939Abstract: Aspects of a method and system for service mobility via a femtocell infrastructure are provided. In this regard, a mobile cellular enabled communication device may detect a femtocell operable to deliver content for one or more services to the mobile cellular enabled communication device, where the one or more services may be provided via a set-top-box communicatively coupled to the femtocell. The mobile cellular enabled communication device may communicate a user profile to the femtocell, wherein information in the profile may be utilized by the set-top-box to authenticate and/or authorize access to the services by the mobile cellular enabled communication device and thus the mobile cellular enabled communication device may receive the content from the set-top-box based on the authentication and/or authorization. The content may comprise voice, video, data, text and/or still images.Type: GrantFiled: January 23, 2015Date of Patent: October 18, 2016Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Charles Abraham, Xuemin Sherman Chen, Wael William Diab, Vinko Erceg, Victor T. Hou, Mark Kent
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Patent number: 9449345Abstract: Aspects of a method and system for authorizing network transactions based on radio frequency (RF) characterization of a device's location are provided. In this regard, whether to approve a communication device to perform a network transaction may be determined based on results of a comparison between a radio frequency (RE) characterization of a location of the communication device and one or more approved RF characterizations. The RF characterization may be based on information from a plurality of receivers within the communication device. The one or more approved characterizations may be stored in the network device. The RF characterization may indicate a quantity of RF sources detected and identified by the communication device at the location. The RF characterization may indicate signal strength of signals received from RF sources detected and indentified by the communication device at the location.Type: GrantFiled: March 26, 2010Date of Patent: September 20, 2016Assignee: Broadcom CorporationInventors: David Lundgren, Mark Buer, Charles Abraham, David Garrett, Jeyhan Karaoguz, David Murray
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Patent number: 9405013Abstract: A multi-standard GNSS receiver, handle different global navigation satellite systems (GNSSs), determines with respect to a current time instant, the earliest broadcast timing based on corresponding satellite broadcast cycles for satellites in the different GNSSs. The multi-standard GNSS receiver acquires broadcast ephemeris at the determined earliest broadcast timing to determine its own first position. A search order is determined based on the corresponding satellite broadcast cycles and the current time instant. The multi-standard GNSS receiver may selectively utilize appropriate satellite receivers such as the GPS receiver and the GLONASS receiver to search for satellite signals based on the determined search order. Channels for different GNSSs are scanned to identify transmitting satellites based on the corresponding satellite broadcast cycles for ephemeris downloading. The satellite search is prioritized by comparing the current time instant with the corresponding satellite broadcast cycles.Type: GrantFiled: August 6, 2013Date of Patent: August 2, 2016Assignee: Broadcom CorporationInventors: Frank van Diggelen, Charles Abraham
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Publication number: 20160154114Abstract: An integrated global navigation satellite system (GNSS) receiver may be operable to decompose GNSS IF signals associated with GPS satellites and/or GLONASS satellites into a constituent narrowband GPS data stream and/or a plurality of constituent narrowband GLONASS data streams utilizing, for example, a GPS IF tuner and/or one or more GLONASS IF tuners. The narrowband GLONASS data streams and/or the narrowband GPS data stream may be processed at reduced sampling rates utilizing a shared sample memory in the integrated GNSS receiver. The narrowband GLONASS data streams and/or the narrowband GPS data stream may be stored in allocated sections of the shared sample memory. The stored narrowband GLONASS data streams and/or the stored narrowband GPS data stream may be processed using a correlation such as a fast Fourier transform (FFT) correlation.Type: ApplicationFiled: June 5, 2013Publication date: June 2, 2016Inventors: Andreas WARLOE, Charles Norman, Charles Abraham
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Patent number: 9351273Abstract: A transmitting communication device may iteratively adjust its transmit power, and may estimate, based on iterative transmit power adjustment, relative location of a receiving communication device. The transmit power may be initialized to a maximum value, and the transmit power may be iteratively reduced until connectivity with the receiving communication device is lost. The loss of connectivity may be determined based on reception of responses to ping messages transmitted by the transmitting communication device. The transmitting communication device may authenticate the receiving communication device and/or a user of the receiving communication device. The authentication may comprises utilizing transmit power adjustment and/or relative location estimation therefrom to ensure that a separation between the devices does not exceed a maximum value.Type: GrantFiled: January 5, 2015Date of Patent: May 24, 2016Assignee: BROADCOM CORPORATIONInventors: Mark Buer, Charles Abraham, David Garrett, Jeyhan Karaoguz, David Lundgren, David Murray
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Patent number: 9344902Abstract: Aspects of a method and system for evaluating deployment of femtocells as part of a cellular network are provided. In this regard, a communication device may be operable to communicate information to a femtocell management entity that may be utilized to determine whether a specified location is suitable for installation of a femtocell. The communication device may be operable to receive from the femtocell management entity, data that indicates whether the specified location is suitable for the installation of the femtocell. The femtocell management entity may utilize the communicated information and/or additional information associated with one or installed femtocells, and/or one or more other communication devices that are within a vicinity of the specified location to determine whether the specified location is suitable for installation of the femtocell.Type: GrantFiled: May 29, 2009Date of Patent: May 17, 2016Assignee: Broadcom CorporationInventors: Charles Abraham, Xuemin Chen, Wael William Diab, Vinko Erceg, Victor Hou, Jeyhan Karaoguz, Mark Kent
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Patent number: 9322924Abstract: A frequency synthesizer in a GNSS receiver chip enables duty cycling operation of the frequency synthesizer. The frequency synthesizer is cycled on to generate required clock signals for the GNSS receiver chip, and cycled off during a measurement duty cycle comprising measurement available intervals and measurement unavailable intervals. A reference clock inputted to the frequency synthesizer is on during the measurement duty-cycle. During the measurement available intervals, the frequency synthesizer is cycled on to generate the required clock based on the reference clock. During the measurement unavailable intervals, the frequency synthesizer is cycled off and clock timing is maintained based on the reference clock. A number of elapsed clock cycles of the reference clock is captured for a measurement unavailable interval and transferred to a clock offset. The GNSS receiver chip processes signals received using the required clock and the clock offset in a following measurement available interval.Type: GrantFiled: January 12, 2009Date of Patent: April 26, 2016Assignee: Broadcom CorporationInventor: Charles Abraham
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Publication number: 20160109580Abstract: A combined GPS and GLONASS receiver receives GPS signals and GLONASS signals. A calibration signal is generated utilizing the received GPS signals and/or the received GLONASS signals to offset group delay errors in the received GLONASS signals. The generated calibration signal is filtered through Kalman filters to estimate group delay variations in the received GLONASS signals. The estimated group error delay variations are combined with the received GLONASS signals to calibrate the received GLONASS signals by offsetting the estimated group error delay variations. When GPS signals are not available for use, the combined GPS and GLONASS receiver obtains group delay errors stored or in the received GLONASS signals to estimate calibration coefficients. The estimate calibration coefficients are updated utilizing received GPS and/or GLONASS signals.Type: ApplicationFiled: December 30, 2015Publication date: April 21, 2016Applicant: Broadcom CorporationInventor: Charles Abraham
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Patent number: 9300813Abstract: Aspects of a method and system for controlling access and utilization of femtocells via a network based service are provided. In this regard, a femtocell management entity communicatively coupled to a network and operable to manage one or more femtocells may be accessed via an end-user communication device. In this manner, the femtocell(s) may be managed via the end-user device such as one of the cellular enabled communication devices. The femtocell management entity may enable establishing one or more SLAs between the femtocell(s) and the cellular enabled communication device(s). The SLA(s) may enable the cellular enabled communication device(s) to establish one or more cellular communication channels with the femtocell(s). The SLA(s) may determine when the cellular communication channels may be established. The SLA(s) may determine how a femtocell owner/operator may be compensated for providing cellular service. The femtocell(s) may be accessed utilizing Internet Protocol.Type: GrantFiled: May 13, 2015Date of Patent: March 29, 2016Assignee: Broadcom CorporationInventors: Charles Abraham, Xuemin Sherman Chen, Wael William Diab, Vinko Erceg, Victor T. Hou, Jeyhan Karaoguz, Mark Kent
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Patent number: 9274225Abstract: A method and apparatus for generating and distributing satellite tracking data to a remote receiver is disclosed. The method for includes extracting from satellite-tracking data initial model parameters representing a current orbit of at least one satellite-positioning-system satellite, computing an orbit model using the initial model parameters, wherein a duration of the orbit model is longer than a duration of the satellite-tracking data, comparing, for an overlapping period of time, the orbit model to the satellite-tracking data; and adjusting the orbit model to match the satellite tracking data for the overlapping period of time so as to form an adjusted orbit model. The adjusted orbit model comprises the long-term-satellite-tracking data.Type: GrantFiled: October 27, 2008Date of Patent: March 1, 2016Assignee: Broadcom CorporationInventors: Charles Abraham, Frank van Diggelen, Matthew Riben
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Patent number: RE48176Abstract: A method and apparatus for creating and distributing satellite tracking data in a compact format to a remote receiver. At least a portion of the satellite tracking data is extracted from memory and is formatted into a compact format. The compact formatted data is transmitted to the remote receiver via a distribution network.Type: GrantFiled: September 20, 2011Date of Patent: August 25, 2020Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Frank van Diggelen, Charles Abraham, James W. LaMance