公开(公告)号：US20250023675A1

公开(公告)日：2025-01-16

申请号：US18904852

申请日：2024-10-02

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H04L5/00

Abstract: Disclosed is a system and method for transmitting more data on the same bandwidth as current wireless and wired schemes use. A method for transmitting data can use orthogonal frequency domain multiplexing by identifying a lowest frequency subcarrier in an orthogonal frequency division multiplexing bandwidth that includes 64 subcarriers. The method can include receiving the second, fourth, eighth, sixteenth, thirty-second, and sixty-fourth subcarriers using a bandpass filter and decoding the set of orthogonal functions for each of the second, fourth, eighth, sixteenth, thirty-second, and sixty-fourth subcarriers. The method can further include combining the decoded data to recover the transmitted data.

公开(公告)号：US11683875B2

公开(公告)日：2023-06-20

申请号：US17749132

申请日：2022-05-19

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H05B47/185 ,  H05B47/105

CPC classification number: H05B47/185 ,  H05B47/105

Abstract: 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.

公开(公告)号：US20220383308A1

公开(公告)日：2022-12-01

申请号：US17748941

申请日：2022-05-19

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: G06Q20/38 ,  G06Q20/40

Abstract: 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.

公开(公告)号：US20220376942A1

公开(公告)日：2022-11-24

申请号：US17747811

申请日：2022-05-18

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H04L12/28 ,  G05B15/02

Abstract: 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.

公开(公告)号：US20220374518A1

公开(公告)日：2022-11-24

申请号：US17748763

申请日：2022-05-19

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: G06F21/56 ,  G06F21/54 ,  G06F21/55 ,  G06F21/57

Abstract: 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.

公开(公告)号：US12192028B2

公开(公告)日：2025-01-07

申请号：US17747811

申请日：2022-05-18

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H04L12/28 ,  G05B15/02

Abstract: 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.

公开(公告)号：US20240155755A1

公开(公告)日：2024-05-09

申请号：US18211462

申请日：2023-06-19

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H05B47/185 ,  H05B47/105

CPC classification number: H05B47/185 ,  H05B47/105

Abstract: 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.

公开(公告)号：US20230412110A1

公开(公告)日：2023-12-21

申请号：US18459928

申请日：2023-09-01

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: H02P29/00 ,  F24F11/00 ,  H03K5/01

CPC classification number: H02P29/00 ,  F24F11/0001 ,  H03K5/01 ,  H03B5/32

Abstract: Disclosed is a system and method for power line control of electrical fans. The system generates a sinusoidal wave using a crystal oscillator. Control information is added to the sinusoidal wave by routing the wave through a phase inversion circuit a predetermined intervals according to a protocol. 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 controlling a fan motor.

公开(公告)号：US11806654B2

公开(公告)日：2023-11-07

申请号：US18046830

申请日：2022-10-14

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: B01D46/24 ,  B01D46/00 ,  B01D46/10 ,  B01D50/20

CPC classification number: B01D46/2422 ,  B01D46/106 ,  B01D46/2478 ,  B01D46/2486 ,  B01D50/20 ,  B01D46/0001 ,  B01D46/0036 ,  B01D46/2455 ,  B01D46/2496 ,  B01D2201/62 ,  B01D2253/102 ,  B01D2258/06 ,  B01D2271/02

Abstract: 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.

公开(公告)号：US20230186322A1

公开(公告)日：2023-06-15

申请号：US18167456

申请日：2023-02-10

Applicant: Focus Universal Inc.

Inventor： Desheng Wang

IPC: G06Q30/018

CPC classification number: G06Q30/018

Abstract: Disclosed is a system and method for verifying the authenticity of goods for sale. The system includes an authenticity device on the product which determines a code using a two step authenticity algorithm which inputs time as a variable and outputs the code. The code may be displayed on the authenticity device. The smart device contacts the manufacturer via an application and a wide area network and provides identification information regarding the product. Based on the identification information, the manufacturer finds the copy of the authenticity algorithm stored at the manufacturer, runs the algorithm, and returns the code to the smart device.