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公开(公告)号：US11683875B2
公开(公告)日：2023-06-20
申请号：US17749132
申请日：2022-05-19
申请人： Focus Universal Inc.
发明人： Desheng Wang
IPC分类号： H05B47/185 , H05B47/105
CPC分类号： H05B47/185 , H05B47/105
摘要： Disclosed herein are systems and methods using power line communication to control light fixtures. The system operates in two phases. In the first phase, a control device generates commands which are encoded on a control signal. The control signal is generated by encoding data using two sinusoidal waves, the second sinusoidal wave being a phase-shifted copy of the first sinusoidal wave. The resulting control signal is sent on a power line. The control signal is received by light fixtures and/or sensors through an ultra-narrow band filter, decoded and converted to executable instructions for the light fixtures and data parameters for sensors. In the second phase, the light fixtures are jointly controlled by the control device and the sensors. The control in phase two is hybrid open loop/closed loop control.
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公开(公告)号：US20220383308A1
公开(公告)日：2022-12-01
申请号：US17748941
申请日：2022-05-19
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed is a system and method for more secure card transactions. The security is generated by the use of a dynamic transaction number which is valid for only a single predetermined time interval. The transaction number is generated through a two step process. In a first step, time is used as an input to a transaction number function. The transaction number function outputs a plurality of digits. The second step uses the plurality digits for input and uses a ruleset to strip at least one digit to determine the transaction number valid for the predetermined time interval.
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公开(公告)号：US20220376942A1
公开(公告)日：2022-11-24
申请号：US17747811
申请日：2022-05-18
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed is a smart home system for controlling peripheral devices. The smart home system allows a single computing device to control a plurality of peripheral devices. The system can include a crystal oscillator. The computing device connects to a universal device. The universal device connects to one or more system modules. The universal device and system modules communicate using a protocol stored, at least in part, on both the universal device and system modules. The use of the protocol and the system module to peripheral device interface allows for a universality of peripheral devices. That is, the smart home system allows for the extension of smart control to non-traditional smart devices.
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公开(公告)号：US20220374518A1
公开(公告)日：2022-11-24
申请号：US17748763
申请日：2022-05-19
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed is a system and method for increased security of files stored on local machines. The system and method include a number of checks to ensure that the file is being opened on the local machine where it was created. The checks may include a comparison to a CPUID of the machine on which the file is being opened to a CPUID stored in a script when the file was created. The checks may also include a review of a plurality of memory locations in search of artifacts indicating that the file is being opened on a virtual machine. A server may also check that any messages send from the local machine do not pass through an intermediate server.
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公开(公告)号：US11984942B2
公开(公告)日：2024-05-14
申请号：US18145756
申请日：2022-12-22
申请人： Focus Universal Inc.
发明人： Desheng Wang , Cailin Tian
IPC分类号： H04B3/54
CPC分类号： H04B3/54
摘要： Disclosed is a system and method for power line control of devices. The system operates in two modes. In mode one, the system operates on an open loop architecture with a controller generating a sinusoidal wave using a crystal oscillator. Control information is added to the sinusoidal wave by alternating the output of two phase shifted waves which have the same frequency and amplitude to form a control signal. The resulting control signal is sent on a power line. The control signal is received using a crystal filter, decoded and converted to executable instructions for the devices and data parameters for sensors. In mode two, the system operates on a hybrid open loop/closed loop architecture where devices are jointly controlled by the controller and the sensors.
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公开(公告)号：US20230067514A1
公开(公告)日：2023-03-02
申请号：US18046830
申请日：2022-10-14
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed is an air filter and a method of manufacture for an air filter which is much more cost effective and provides greater operational effectiveness than state-of-the-art air filters. The air filter includes an outer metallic shell which may be used to attach the filter in line to ducting of a heating, ventilation, and air conditioning (HVAC) system. The filter may further include a filter unit made of activated carbon material. The filter unit may have one or more sections and may have a honeycomb cross section.
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公开(公告)号：US20230018881A1
公开(公告)日：2023-01-19
申请号：US17750226
申请日：2022-05-20
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed here are systems and methods for controlling an irrigation system using a two-wire electrical path. The system includes a controller, decoders, and sensors all connected by a two-wire wired connection. The controller controls the decoders and provides parameters to the sensors in an open-loop operation mode. The sensors may control one or more of the decoders in a closed-loop operation mode. The system may further operate in a hybrid operation mode providing both open- and closed-loop operation. The various components of the system communicate using a power line communication protocol which places data on a frequency or bandwidth separate from the power signal.
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公开(公告)号：US20230007755A1
公开(公告)日：2023-01-05
申请号：US17749132
申请日：2022-05-19
申请人： Focus Universal Inc.
发明人： Desheng Wang
IPC分类号： H05B47/185 , H05B47/105
摘要： Disclosed herein are systems and methods using power line communication to control light fixtures. The system operates in two phases. In the first phase, a control device generates commands which are encoded on a control signal. The control signal is generated by encoding data using two sinusoidal waves, the second sinusoidal wave being a phase-shifted copy of the first sinusoidal wave. The resulting control signal is sent on a power line. The control signal is received by light fixtures and/or sensors through an ultra-narrow band filter, decoded and converted to executable instructions for the light fixtures and data parameters for sensors. In the second phase, the light fixtures are jointly controlled by the control device and the sensors. The control in phase two is hybrid open loop/closed loop control.
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公开(公告)号：US11546017B2
公开(公告)日：2023-01-03
申请号：US16760857
申请日：2019-11-29
申请人： Focus Universal Inc.
发明人： Desheng Wang , Cailin Tian
IPC分类号： H04B3/54
摘要： Disclosed is a system and method for power line control of devices. The system operates in two modes. In mode one, the system operates on an open loop architecture with a controller generating a sinusoidal wave using a crystal oscillator. Control information is added to the sinusoidal wave by alternating the output of two phase shifted waves which have the same frequency and amplitude to form a control signal. The resulting control signal is sent on a power line. The control signal is received using a crystal filter, decoded and converted to executable instructions for the devices and data parameters for sensors. In mode two, the system operates on a hybrid open loop/closed loop architecture where devices are jointly controlled by the controller and the sensors.
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公开(公告)号：US20220377842A1
公开(公告)日：2022-11-24
申请号：US17748917
申请日：2022-05-19
申请人： Focus Universal Inc.
发明人： Desheng Wang
摘要： Disclosed is an Internet of Things system for allowing hub to device and device to device communication on the system. The system is built on a backbone of physical power lines and primarily relies on a power line communication protocol for sending messages between the hub and the devices or between devices. Each of the devices on the system, regardless of function is built on foundational architecture which guarantees that the device will be able to communicate on the system. A smart device, operating in conjunction with a universal device acts as the hub of the system.
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