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).

  • Publication number: 20160379474
    Abstract: 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: Application
    Filed: June 29, 2015
    Publication date: December 29, 2016
    Inventors: Rafi ZACK, Yossi Kofman
  • Patent number: 9520051
    Abstract: 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: Grant
    Filed: June 29, 2015
    Date of Patent: December 13, 2016
    Assignee: ECHOCARE TECHNOLOGIES LTD.
    Inventors: Rafi Zack, Yossi Kofman
  • Patent number: 9155052
    Abstract: 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: Grant
    Filed: February 28, 2013
    Date of Patent: October 6, 2015
    Assignee: ALVARION Ltd.
    Inventors: Vladimir Yanover, Tomer Goshen, Rafi Zack
  • Patent number: 9148822
    Abstract: 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: Grant
    Filed: February 28, 2013
    Date of Patent: September 29, 2015
    Assignee: ALVARION Ltd.
    Inventors: Rafi Zack, Tomer Goshen
  • Patent number: 9026119
    Abstract: 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: Grant
    Filed: February 28, 2013
    Date of Patent: May 5, 2015
    Assignee: Alvarion Ltd.
    Inventors: Tomer Goshen, Rafi Zack
  • Publication number: 20140241258
    Abstract: 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: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: Alvarion Ltd.
    Inventors: Rafi ZACK, Tomer Goshen
  • Publication number: 20140241185
    Abstract: 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: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: Alvarion Ltd.
    Inventors: Vladimir YANOVER, Tomer Goshen, Rafi Zack
  • Publication number: 20140242999
    Abstract: 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: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Inventors: Tomer GOSHEN, Rafi Zack
  • Patent number: 8121542
    Abstract: 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: Grant
    Filed: October 14, 2008
    Date of Patent: February 21, 2012
    Inventors: Rafi Zack, Doron Rainish
  • Publication number: 20090098826
    Abstract: 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: Application
    Filed: October 14, 2008
    Publication date: April 16, 2009
    Inventors: Rafi Zack, Doron Rainish
  • Patent number: 7474705
    Abstract: 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: Grant
    Filed: August 18, 2003
    Date of Patent: January 6, 2009
    Assignee: Wisair Ltd
    Inventors: Gadi Shor, David Yaish, Yaron Knobel, Sorin Goldenberg, Benny Blumer, Rafi Zack
  • Patent number: 7010016
    Abstract: 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: Grant
    Filed: December 19, 2001
    Date of Patent: March 7, 2006
    Assignee: Intel Corporation
    Inventors: Alex Margulis, Rafi Zack, Udi Ben-David, Dotan Sokolov
  • Publication number: 20050249183
    Abstract: 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: Application
    Filed: January 25, 2005
    Publication date: November 10, 2005
    Inventors: Tamar Danon, Rafi Zack, Yefim Kupershmidt
  • Publication number: 20040077306
    Abstract: 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: Application
    Filed: August 18, 2003
    Publication date: April 22, 2004
    Inventors: Gadi Shor, David Yaish, Yaron Knobel, Sorin Goldenberg, Benny Blumer, Rafi Zack
  • Publication number: 20030112855
    Abstract: 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: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Applicant: D.S.P.C. TECHNOLOGIES LTD
    Inventors: Alex Margulis, Rafi Zack, Udi Ben-David, Dotan Sokolov