Patents by Inventor Eli Litvak

Eli Litvak 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).

  • Patent number: 11619738
    Abstract: A wireless dual technology displacement sensor (“displacement sensor system”) and method are disclosed. The displacement sensor system includes an analyzing sensor for determining a range to a measuring point and a trigger sensor for activating the analyzing sensor. The trigger sensor is an accelerometer or an optical proximity sensor (OPS), in examples. The analyzing sensor is preferably a time of flight range sensor. When installed as part of a door system having a door and door frame, for example, the trigger sensor detects movement of the door, and activates the analyzing sensor in response. The analyzing sensor then determines the range to the measuring point, such as the door frame. This two sensor system can be thus used to prevent the high current consumption of existing displacement sensor systems.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 4, 2023
    Assignee: Tyco Fire & Security GMBH
    Inventors: Eli Litvak, Boris Zhevelev, Shlomo Gabrilovich
  • Publication number: 20200241135
    Abstract: A wireless dual technology displacement sensor (“displacement sensor system”) and method are disclosed. The displacement sensor system includes an analyzing sensor for determining a range to a measuring point and a trigger sensor for activating the analyzing sensor. The trigger sensor is an accelerometer or an optical proximity sensor (OPS), in examples. The analyzing sensor is preferably a time of flight range sensor. When installed as part of a door system having a door and door frame, for example, the trigger sensor detects movement of the door, and activates the analyzing sensor in response. The analyzing sensor then determines the range to the measuring point, such as the door frame. This two sensor system can be thus used to prevent the high current consumption of existing displacement sensor systems.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 30, 2020
    Inventors: Eli LITVAK, Boris ZHEVELEV, Shlomo GABRILOVICH
  • Patent number: 10718147
    Abstract: A system and method for an optical displacement detector system with adjustable pattern direction are disclosed. In an embodiment, the detector system includes a mounting bracket and a sensor assembly. The sensor assembly includes a housing, and a sensor module in the housing. The sensor assembly can be rotated with respect to the mounting bracket to adjust an optical axis of the sensor module. In another embodiment, the detector system includes a turntable that enables additional adjustment of the optical axis. Such a system significantly improves installation of these detector systems as compared to existing optical displacement detector systems, which have fixed optical axes. In one application, the detector system is installed in a door system having a door and door frame, and detects displacement of the door.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: July 21, 2020
    Assignee: TYCO FIRE & SECURITY GMBH
    Inventors: Boris Zhevelev, Eli Litvak
  • Publication number: 20190309557
    Abstract: A system and method for an optical displacement detector system with adjustable pattern direction are disclosed. In an embodiment, the detector system includes a mounting bracket and a sensor assembly. The sensor assembly includes a housing, and a sensor module in the housing. The sensor assembly can be rotated with respect to the mounting bracket to adjust an optical axis of the sensor module. In another embodiment, the detector system includes a turntable that enables additional adjustment of the optical axis. Such a system significantly improves installation of these detector systems as compared to existing optical displacement detector systems, which have fixed optical axes. In one application, the detector system is installed in a door system having a door and door frame, and detects displacement of the door.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 10, 2019
    Inventors: Boris Zhevelev, Eli Litvak
  • Patent number: 9691268
    Abstract: A system for automatically controlling intrusion thresholds of intrusion detectors deployed in a premises, the system including intrusion detector output receiving functionality operative to receive at least one output from at least a first intrusion detector deployed in the premises, intrusion detector output comparison functionality operative to compare the at least one output from the at least a first intrusion detector with at least one of a multiplicity of premises intrusion detection patterns, and intrusion detector threshold controlling functionality operative, in response to ascertaining that the at least one output from the at least a first intrusion detector matches at least one of the multiplicity of premises intrusion detection patterns, to automatically tune a threshold of at least a second intrusion detector deployed in the premises.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: June 27, 2017
    Assignee: Tyco Fire & Security GmbH
    Inventors: Boris Zhevelev, Eli Litvak, Yehuda Shviki
  • Publication number: 20160148500
    Abstract: A system for automatically controlling intrusion thresholds of intrusion detectors deployed in a premises, the system including intrusion detector output receiving functionally operative to receive at least one output from at least it first intrusion detector deployed in the premises, intrusion detector output comparison functionality operative to compare the at least one output from the at least a first intrusion detector with at least one of a multiplicity of premises intrusion detection patterns, and intrusion detector threshold controlling functionality operative, in respond to ascertaining that the at least one output from the at least a first intrusion detector matches at least one of the multiplicity of premises intrusion detection patterns, to automatically tune a threshold of at least a second intrusion detector deployed in the premises.
    Type: Application
    Filed: February 1, 2016
    Publication date: May 26, 2016
    Inventors: Boris Zhevelev, Eli Litvak, Yehuda Shviki
  • Patent number: 9280891
    Abstract: A system for automatically controlling intrusion thresholds of intrusion detectors deployed in a premises, the system including intrusion detector output receiving functionality operative to receive at least one output from at least a first intrusion detector deployed in the premises, intrusion detector output comparison functionality operative to compare the at least one output from the at least a first intrusion detector with at least one of a multiplicity of premises intrusion detection patterns, and intrusion detector threshold controlling functionality operative, in response to ascertaining that the at least one output from the at least a first intrusion detector matches at least one of the multiplicity of premises intrusion detection patterns, to automatically tune a threshold of at least a second intrusion detector deployed in the premises.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 8, 2016
    Assignee: Tyco Fire & Security GmbH
    Inventors: Boris Zhevelev, Eli Litvak, Yehuda Shviki
  • Publication number: 20140167952
    Abstract: A system for automatically controlling intrusion thresholds of intrusion detectors deployed in a premises, the system including intrusion detector output receiving functionality operative to receive at least one output from at least a first intrusion detector deployed in the premises, intrusion detector output comparison functionality operative to compare the at least one output from the at least a first intrusion detector with at least one of a multiplicity of premises intrusion detection patterns, and intrusion detector threshold controlling functionality operative, in response to ascertaining that the at least one output from the at least a first intrusion detector matches at least one of the multiplicity of premises intrusion detection patterns, to automatically tune a threshold of at least a second intrusion detector deployed in the premises.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Applicant: Tyco Fire & Security GmbH
    Inventors: Boris Zhevelev, Eli Litvak, Yehuda Shviki