Patents by Inventor Kambiz Shoarinejad
Kambiz Shoarinejad 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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Publication number: 20140301379Abstract: Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodiment, the wireless RFID reader network may be used to improve positioning of readers and tags, and may include a GPS system or position assisted GPS system at the reader and/or tag level.Type: ApplicationFiled: April 4, 2014Publication date: October 9, 2014Applicant: Radiofy LLCInventor: Kambiz Shoarinejad
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Patent number: 8754752Abstract: A system for locating RFID tags includes several RFID readers. A first RFID reader transmits a single RF signal at a particular time to a tag to be located. Each of the RFID readers receives a signal backscattered off the tag from the single RF signal that is transmitted by the first RFID reader. Each of the RFID readers extracts at least one measured position parameter from the signal backscattered off the tag. At least one RFID reader determines the location of the tag by using the measured position parameters extracted from the signal backscattered off the tag from the single RF signal transmitted at the particular time from the first RFID reader. All measured position parameters used in determining the location of the tag are extracted from the signal backscattered off the tag from the single transmission at the particular time from the first RFID reader.Type: GrantFiled: October 8, 2012Date of Patent: June 17, 2014Assignee: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan, Mehran Moshfeghi
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Patent number: 8736424Abstract: An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security.Type: GrantFiled: December 3, 2012Date of Patent: May 27, 2014Assignee: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan
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Patent number: 8693455Abstract: Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodiment, the wireless RFID reader network may be used to improve positioning of readers and tags, and may include a GPS system or position assisted GPS system at the reader and/or tag level.Type: GrantFiled: December 28, 2012Date of Patent: April 8, 2014Assignee: Radiofy LLCInventor: Kambiz Shoarinejad
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Publication number: 20130316648Abstract: A wireless communication device is provided with separate processing modules for a transceiver and a near field communication (NFC) device. The NFC processing module is configured to generate outbound NFC data and to process inbound NFC data, while the transceiver processing module is configured to generate outbound transceiver data and to process inbound transceiver data. A shared radio frequency (RF) front end transmits and receives combined radio frequency (RF) signals including both NFC data and transceiver data.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: BROADCOM CORPORATIONInventors: Ahmadreza (Reza) Rofougaran, Kambiz Shoarinejad
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Publication number: 20130016008Abstract: A multi-standard single chip integrated within a multi-standard mobile device concurrently receives multi-standard radio frequency signals by corresponding two or more integrated radios. The multi-standard single chip generates full GNSS measurement comprising pseudo-range information using the received radio frequency signals. The multi-standard single chip comprises a GNSS radio and multiple non-GNSS radios such as Bluetooth. The full GNSS measurement is generated using GNSS radio frequency signals received by the integrated GNSS radio and communicated over, for example, Bluetooth radio. GNSS satellite reference information embedded in radio frequency signals received by the integrated non-GNSS radios is extracted to assist the full GNSS measurement. A full GNSS navigation solution for the multi-standard mobile device is generated internally to and/or externally to the multi-standard single chip depending on the location of a navigation engine.Type: ApplicationFiled: September 14, 2012Publication date: January 17, 2013Applicant: Broadcom CorporationInventors: John WALLEY, Charles ABRAHAM, Evan MCCARTHY, Kambiz SHOARINEJAD
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Patent number: 8345653Abstract: Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodiment, the wireless RFID reader network may be used to improve positioning of readers and tags, and may include a GPS system or position assisted GPS system at the reader and/or tag level.Type: GrantFiled: January 19, 2012Date of Patent: January 1, 2013Assignee: Radiofy LLCInventor: Kambiz Shoarinejad
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Patent number: 8339311Abstract: A multi-standard single chip integrated within a multi-standard mobile device concurrently receives multi-standard radio frequency signals by corresponding two or more integrated radios. The multi-standard single chip generates full GNSS measurement comprising pseudo-range information using the received radio frequency signals. The multi-standard single chip comprises a GNSS radio and multiple non-GNSS radios such as Bluetooth. The full GNSS measurement is generated using GNSS radio frequency signals received by the integrated GNSS radio and communicated over, for example, Bluetooth radio. GNSS satellite reference information embedded in radio frequency signals received by the integrated non-GNSS radios is extracted to assist the full GNSS measurement. A full GNSS navigation solution for the multi-standard mobile device is generated internally to and/or externally to the multi-standard single chip depending on the location of a navigation engine.Type: GrantFiled: July 24, 2009Date of Patent: December 25, 2012Assignee: Broadcom CorporationInventors: John Walley, Charles Abraham, Evan McCarthy, Kambiz Shoarinejad
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Patent number: 8325043Abstract: An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security.Type: GrantFiled: December 21, 2011Date of Patent: December 4, 2012Assignee: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan
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Patent number: 8294612Abstract: A global navigation satellite system (GNSS) enabled mobile device may be operable to assert one of autoblank signals when RF interference is detected in received GNSS signals for one of consecutive first time windows. The asserted autoblank signals are monitored by the GNSS enabled mobile device over time intervals corresponding to consecutive second time windows and a rate at which the autoblank signals are asserted for each of the consecutive second time windows is determined by the GNSS enabled mobile device based on the monitoring. The GNSS enabled mobile device may be operable to determine whether to blank processing of the received GNSS signals based on the determined rate. The autoblank signals may be asserted by the GNSS enabled mobile device based on a number of the received GNSS signals whose absolute signal levels exceed a signal level threshold for the first time window.Type: GrantFiled: August 9, 2011Date of Patent: October 23, 2012Assignee: Broadcom CorporationInventors: Charles Abraham, Kambiz Shoarinejad, Jared Welz
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Patent number: 8294554Abstract: Embodiments of the present invention include radio frequency identification location systems and methods. In one embodiment, RF signals are transmitted from one or more RFID readers, and in accordance therewith, backscattered signals are received from a tag to be located. A plurality of measured position parameters are used to determine a location of the tag. In one embodiment, one reader may transmit and three readers may receive signals to determine the position of a tag. In other embodiments, multiple readers may transmit and receive. In another embodiment, one reader may transmit from different positions to locate a tag. Embodiments of the invention may be used to track a moving tag. A reader's position may be determined using GPS, reference tags, or the reader may be positioned in a known location. A map may be provided to a user to display the location or movement of a tag or a corresponding item.Type: GrantFiled: December 18, 2006Date of Patent: October 23, 2012Assignee: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan, Mehran Moshfeghi
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Patent number: 8270539Abstract: A method for decoding bi-phase encoded data begins by interpreting a first bit boundary of a bit of the bi-phase encoded data to produce a first boundary value. The method continues by interpreting a second bit boundary of the bit of the bi-phase encoded data to produce a second boundary value. The method continues by comparing the first boundary value to the second boundary value to produce a decoded bit.Type: GrantFiled: May 13, 2009Date of Patent: September 18, 2012Assignee: Broadcom CorporationInventors: Kambiz Shoarinejad, Ahmadreza (Reza) Rofougaran
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Publication number: 20120113902Abstract: Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodiment, the wireless RFID reader network may be used to improve positioning of readers and tags, and may include a GPS system or position assisted GPS system at the reader and/or tag level.Type: ApplicationFiled: January 19, 2012Publication date: May 10, 2012Applicant: Radiofy LLCInventor: Kambiz Shoarinejad
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Patent number: 8169365Abstract: A communication system includes a reference station and a mobile station. The reference station is operable to: receive GPS signals; generate GPS assisting data from the received GPS signals; receive SBAS signals; obtain SBAS data from the received SBAS signals; combine the GPS assisting data and the SBAS data to produce combined GPS data; and transmit the combined GPS data via a terrestrial wireless communication. The mobile station is operable to: receive the GPS signals; receive the combined GPS data via the terrestrial wireless communication; and generate positioning data from the mobile received GPS signals and the combined GPS data.Type: GrantFiled: December 22, 2008Date of Patent: May 1, 2012Assignee: Broadcom CorporationInventor: Kambiz Shoarinejad
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Publication number: 20120087501Abstract: An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security.Type: ApplicationFiled: December 21, 2011Publication date: April 12, 2012Applicant: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan
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Patent number: 8107446Abstract: Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodiment, the wireless RFID reader network may be used to improve positioning of readers and tags, and may include a GPS system or position assisted GPS system at the reader and/or tag level.Type: GrantFiled: November 7, 2005Date of Patent: January 31, 2012Assignee: Radiofy LLCInventor: Kambiz Shoarinejad
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Patent number: 8085149Abstract: An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security.Type: GrantFiled: May 27, 2011Date of Patent: December 27, 2011Assignee: Radiofy LLCInventors: Kambiz Shoarinejad, Maryam Soltan
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Patent number: 8081929Abstract: Methods and systems for optimal frequency planning for an integrated communication system with multiple receivers may include adjusting a center frequency of a low IF signal to reduce interference by a second order interference signal. The center frequency may be adjusted to avoid high power portions of the second order interference signal. The interference level corresponding to a center frequency may be determined by, for example, a SNR of the low IF signal, or by determining a BER for the low IF signal. The center frequency of the low IF signal may be dynamically adjusted to keep second order interference level at an acceptable level. Adjusting the center frequency of the low IF signal may also comprise keeping the low IF signal from being blocked by a DC component of the second order interference signal.Type: GrantFiled: June 5, 2008Date of Patent: December 20, 2011Assignee: Broadcom CorporationInventors: Brima Ibrahim, Alireza Zolfaghari, Steven Hall, Kambiz Shoarinejad, Bojko Marholev
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Publication number: 20110291888Abstract: A global navigation satellite system (GNSS) enabled mobile device may be operable to assert one of autoblank signals when RF interference is detected in received GNSS signals for one of consecutive first time windows. The asserted autoblank signals are monitored by the GNSS enabled mobile device over time intervals corresponding to consecutive second time windows and a rate at which the autoblank signals are asserted for each of the consecutive second time windows is determined by the GNSS enabled mobile device based on the monitoring. The GNSS enabled mobile device may be operable to determine whether to blank processing of the received GNSS signals based on the determined rate. The autoblank signals may be asserted by the GNSS enabled mobile device based on a number of the received GNSS signals whose absolute signal levels exceed a signal level threshold for the first time window.Type: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Inventors: Charles Abraham, Kambiz Shoarinejad, Jared Welz
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Publication number: 20110228941Abstract: An RFID system includes an RFID tag, an RFID reader, and a server. The RFID tag communicates to the server via encrypted information. The information may be encrypted with synchronized encryption keys. In this manner, the reader need not decrypt the information from the RFID tag. The effectiveness of malicious readers is thereby reduced, resulting in improved RFID tag security.Type: ApplicationFiled: May 27, 2011Publication date: September 22, 2011Applicant: Radiofy LLC.Inventors: Kambiz Shoarinejad, Maryam Soltan