Patents by Inventor Rafi Zack
Rafi Zack 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: 20160379474Abstract: A non-wearable Personal Emergency Response System (PERS) architecture is provided, having a synthetic aperture antenna based RF interferometer followed by two-stage human state classifier and abnormal states pattern recognition. In addition, it contains a communication sub-system to communicate with the remote operator and centralized system for multiple users' data analysis. The system is trained to learn the person's body features as well as the home environment. The decision process is carried out based on the instantaneous human state (Local Decision) followed by abnormal states patterns recognition (Global decision). The system global decision (emergency alert) is communicated to the operator through the communication system and two-ways communication is enabled between the monitored person and the remote operator. In some embodiments, a centralized system (cloud) receives data from distributed PERS systems to perform further analysis and upgrading the systems with updated database (codebooks).Type: ApplicationFiled: June 29, 2015Publication date: December 29, 2016Inventors: Rafi ZACK, Yossi Kofman
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Patent number: 9520051Abstract: A non-wearable Personal Emergency Response System (PERS) architecture is provided, having a synthetic aperture antenna based RF interferometer followed by two-stage human state classifier and abnormal states pattern recognition. In addition, it contains a communication sub-system to communicate with the remote operator and centralized system for multiple users' data analysis. The system is trained to learn the person's body features as well as the home environment. The decision process is carried out based on the instantaneous human state (Local Decision) followed by abnormal states patterns recognition (Global decision). The system global decision (emergency alert) is communicated to the operator through the communication system and two-ways communication is enabled between the monitored person and the remote operator. In some embodiments, a centralized system (cloud) receives data from distributed PERS systems to perform further analysis and upgrading the systems with updated database (codebooks).Type: GrantFiled: June 29, 2015Date of Patent: December 13, 2016Assignee: ECHOCARE TECHNOLOGIES LTD.Inventors: Rafi Zack, Yossi Kofman
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Patent number: 9155052Abstract: A way of optimizing communication by minimizing the momentary overall radiated energy under constraints in respect to coverage and maintenance of communication with the users, is provided herein. Channel parameters are estimated from downlink and/or uplink communications or from user equipment messages and desirable gain factors are derived from the minimization. The optimization is reiterated continuously to dynamically adapt the communication system to varying conditions.Type: GrantFiled: February 28, 2013Date of Patent: October 6, 2015Assignee: ALVARION Ltd.Inventors: Vladimir Yanover, Tomer Goshen, Rafi Zack
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Patent number: 9148822Abstract: A communication system architecture is provided, having an aggregator, arranged to centralize the access units and coordinate the radio signals of access units of different types digitally, and remote radio units configured to be modularly connectable to different types of radio elements that correspond to the access units and arranged to communicate with the aggregator digitally. Radio signals are scheduled and delivered with respect to the types of the access units and of the radio elements, and the aggregator is further arranged to handle distribution and combining of the radio signals digitally. The aggregator further comprises a controller arranged to continuously optimize communication with respect to the access units and user mobile communication devices by applying a decision process to cost functions that depends on communication parameters to derive specified dynamically changing parameters, and to manage the aggregator dynamically with respect thereto.Type: GrantFiled: February 28, 2013Date of Patent: September 29, 2015Assignee: ALVARION Ltd.Inventors: Rafi Zack, Tomer Goshen
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Patent number: 9026119Abstract: Provided herein is a dynamically coordination of a distribution of radio signals via distributed remote radio units, with respect to changing numbers and locations of user equipment. A distributing and combining unit combines uplink radio signals from the remote radio units and distributes downlink radio signals from the access unit according to dynamically changing specified criteria. A measurement unit measures performance indicators of the communication between the remote radio units and the mobile communication devices into a matrix of performance indicator values, calculates cost functions therefrom and generates output execution parameters by applying a decision process based on the calculated cost function. Communication criteria are dynamically updated according to the generated output execution parameters and the process is continuously iterative. The invention allows incorporating “smart” capabilities into legacy networks without any major physical changes of the network.Type: GrantFiled: February 28, 2013Date of Patent: May 5, 2015Assignee: Alvarion Ltd.Inventors: Tomer Goshen, Rafi Zack
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Publication number: 20140241258Abstract: A communication system architecture is provided, having an aggregator, arranged to centralize the access units and coordinate the radio signals of access units of different types digitally, and remote radio units configured to be modularly connectable to different types of radio elements that correspond to the access units and arranged to communicate with the aggregator digitally. Radio signals are scheduled and delivered with respect to the types of the access units and of the radio elements, and the aggregator is further arranged to handle distribution and combining of the radio signals digitally. The aggregator further comprises a controller arranged to continuously optimize communication with respect to the access units and user mobile communication devices by applying a decision process to cost functions that depends on communication parameters to derive specified dynamically changing parameters, and to manage the aggregator dynamically with respect thereto.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: Alvarion Ltd.Inventors: Rafi ZACK, Tomer Goshen
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Publication number: 20140241185Abstract: A way of optimizing communication by minimizing the momentary overall radiated energy under constraints in respect to coverage and maintenance of communication with the users, is provided herein. Channel parameters are estimated from downlink and/or uplink communications or from user equipment messages and desirable gain factors are derived from the minimization. The optimization is reiterated continuously to dynamically adapt the communication system to varying conditions.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: Alvarion Ltd.Inventors: Vladimir YANOVER, Tomer Goshen, Rafi Zack
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Publication number: 20140242999Abstract: Provided herein is a dynamically coordination of a distribution of radio signals via distributed remote radio units, with respect to changing numbers and locations of user equipment. A distributing and combining unit combines uplink radio signals from the remote radio units and distributes downlink radio signals from the access unit according to dynamically changing specified criteria. A measurement unit measures performance indicators of the communication between the remote radio units and the mobile communication devices into a matrix of performance indicator values, calculates cost functions therefrom and generates output execution parameters by applying a decision process based on the calculated cost function. Communication criteria are dynamically updated according to the generated output execution parameters and the process is continuously iterative. The invention allows incorporating “smart” capabilities into legacy networks without any major physical changes of the network.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Inventors: Tomer GOSHEN, Rafi Zack
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Patent number: 8121542Abstract: The today's mobile handheld and portable devices become slim and thin while need to communicate with other devices and accessories that are attached or at very short range. The interface (contact based physical connector) becomes a real challenge and unreliable to the consumer that needs to attached and detach its device several times a day. It is an object of the present invention to provide system and method of replacing a contact based physical interface (connector) with very short range wireless (contactless) interface. This technique is called “contactless virtual connector” or CVC. The method of the present invention is based on a transmission of a very low power and wideband RF signal. The new innovating mechanism replaces the traditional physical connector with new radiated signal technique that consumes very low power and may be cost competitive with the today's physical connectors.Type: GrantFiled: October 14, 2008Date of Patent: February 21, 2012Inventors: Rafi Zack, Doron Rainish
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Publication number: 20090098826Abstract: The today's mobile handheld and portable devices become slim and thin while need to communicate with other devices and accessories that are attached or at very short range. The interface (contact based physical connector) becomes a real challenge and unreliable to the consumer that needs to attached and detach its device several times a day. It is an object of the present invention to provide system and method of replacing a contact based physical interface (connector) with very short range wireless (contactless) interface. This technique is called “contactless virtual connector” or CVC. The method of the present invention is based on a transmission of a very low power and wideband RF signal. The new innovating mechanism replaces the traditional physical connector with new radiated signal technique that consumes very low power and may be cost competitive with the today's physical connectors.Type: ApplicationFiled: October 14, 2008Publication date: April 16, 2009Inventors: Rafi Zack, Doron Rainish
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Patent number: 7474705Abstract: The present invention provides multi-band ultra-wide band (UWB) communication methods and systems capable of adaptively and scalably supporting different applications with different requirements, as well as different desired or ideal properties relating to the communications. A method is provided for transmitting information using multi-band ultra-wide band transmission, including transmitting a signal over each of multiple frequency sub-bands, and allowing variation of at least one transmission parameter to facilitate trade-off between at least two of power consumption, energy collection, bit rate, performance, range, resistance to multiple access interference, and resistance to multipath interference and spectral flatness.Type: GrantFiled: August 18, 2003Date of Patent: January 6, 2009Assignee: Wisair LtdInventors: Gadi Shor, David Yaish, Yaron Knobel, Sorin Goldenberg, Benny Blumer, Rafi Zack
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Patent number: 7010016Abstract: A spread-spectrum receiver has a high-rate path to receive multi-rate channels and a low-rate path to receive fixed-rate channels. In a wideband code division multiple access (WCDMA) embodiment, the high-rate path despreads multi-rate physical channels having a variable spreading factor and the low-rate path despreads physical channels having a fixed spreading factor. The high-rate path may have high-rate rake fingers to despread multipath components of the multi-rate channels. Each multi-rate channel may have a different spreading code allowing for multicode reception. The high-rate path may also include a high-rate rake with finger engines implemented in hardware to multiply symbols with a channel estimation, and a combiner to combine the multipath components. The low-rate path may include low-rate fingers to despread multipath components of the fixed-rate channels and a processor to generate a channel estimation and coherently combine symbols from the low-rate fingers with the channel estimation.Type: GrantFiled: December 19, 2001Date of Patent: March 7, 2006Assignee: Intel CorporationInventors: Alex Margulis, Rafi Zack, Udi Ben-David, Dotan Sokolov
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Publication number: 20050249183Abstract: A method and device for reception and transmission using a distributed media access control scheme. The device includes an interface for receiving a payload including multiple information signals; and circuitry adapted to process the payload to provide an information frame that includes a PHY layer header, multiple payload fragments, multiple fragmentation control fields and multiple payload fragment check sequence fields; and further adapted to transmit the information frame using a distributed media access control scheme; whereas the multiple payload fragments are associated with the multiple fragmentation control fields and with the multiple payload fragment check sequence fields.Type: ApplicationFiled: January 25, 2005Publication date: November 10, 2005Inventors: Tamar Danon, Rafi Zack, Yefim Kupershmidt
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Publication number: 20040077306Abstract: The present invention provides multi-band ultra-wide band (UWB) communication methods and systems capable of adaptively and scalably supporting different applications with different requirements, as well as different desired or ideal properties relating to the communications. A method is provided for transmitting information using multi-band ultra-wide band transmission, including transmitting a signal over each of multiple frequency sub-bands, and allowing variation of at least one transmission parameter to facilitate trade-off between at least two of power consumption, energy collection, bit rate, performance, range, resistance to multiple access interference, and resistance to multipath interference and spectral flatness.Type: ApplicationFiled: August 18, 2003Publication date: April 22, 2004Inventors: Gadi Shor, David Yaish, Yaron Knobel, Sorin Goldenberg, Benny Blumer, Rafi Zack
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Publication number: 20030112855Abstract: A spread-spectrum receiver has a high-rate path to receive multi-rate channels and a low-rate path to receive fixed-rate channels. In a wideband code division multiple access (WCDMA) embodiment, the high-rate path despreads multi-rate physical channels having a variable spreading factor and the low-rate path despreads physical channels having a fixed spreading factor. The high-rate path may have high-rate rake fingers to despread multipath components of the multi-rate channels. Each multi-rate channel may have a different spreading code allowing for multicode reception. The high-rate path may also include a high-rate rake with finger engines implemented in hardware to multiply symbols with a channel estimation, and a combiner to combine the multipath components. The low-rate path may include low-rate fingers to despread multipath components of the fixed-rate channels and a processor to generate a channel estimation and coherently combine symbols from the low-rate fingers with the channel estimation.Type: ApplicationFiled: December 19, 2001Publication date: June 19, 2003Applicant: D.S.P.C. TECHNOLOGIES LTDInventors: Alex Margulis, Rafi Zack, Udi Ben-David, Dotan Sokolov