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35results about How to "Realize button function" patented technology

Intelligent elevator safety key input device and method for preventing and controlling virus infection

The invention discloses an intelligent elevator safety key input device and method for preventing and controlling virus infection. The intelligent elevator safety key input device includes an elevatorsafety key, a control circuit is arranged inside the elevator safety key, the control circuit is composed of a microcontroller and peripheral sub-circuits, and a light intensity detection circuit isarranged inside the elevator safety key; the light intensity detection circuit memorizes current ambient light intensity under the control of the microcontroller and converts the current ambient lightintensity into a voltage signal to be stored in a memory capacitor; a reflective photoelectric sensor receiver is used to convert total light intensity reflected into the interior of the safety key into a voltage signal and input the voltage signal into a voltage comparator through an in-phase buffer and transmit a signal to the microcontroller after the voltage of the voltage signal is comparedwith a memory voltage; and after the microcontroller detects the key to be used by a user, the microcontroller outputs a signal to control a safety key drive circuit, through the driving of a photoelectric coupler and a transistor Q4, a normally open contact of a relay is controlled to be closed, and the automatic pressing of the elevator safety key is realized. According to the intelligent elevator safety key input device and method, virus can be effectively prevented from spreading through the car-type elevator key.
Owner:SHAANXI UNIV OF SCI & TECH

Method and system for remote control based on electromagnetic induction

The invention discloses a method for remote control based on electromagnetic induction, which comprises the steps that a remote controller forms induction capacitance with a human body when the human body approaches, and oscillation signals are generated when a capacitance value of the induction capacitance reaches a preset value; a remote control code value is generated according to the oscillation signals and sent to a terminal device; the terminal device receives the remote control code value sent by the remote controller, and a frequency value in the remote control code value is decoded, wherein the frequency value is oscillation frequency of the oscillation signals; the frequency value is compared with preset frequency intervals, wherein each preset frequency interval corresponds to an action of the terminal device; and when the frequency value is located at a certain preset frequency interval in a preset length of time, an action corresponding to the preset frequency interval is executed. The invention further discloses a system for remote control based on electromagnetic induction, which is used for executing the method for remote control based on electromagnetic induction. The method and the system disclosed by the invention can realize that key functions of the remote controller can be completed without contacting the remote controller, thereby improving the reliability of the remote controller and the terminal device, and improving intelligentization of the terminal device.
Owner:SHENZHEN TCL DIGITAL TECH CO LTD

Fingerprint module with key function, battery cover assembly and mobile terminal

The invention discloses a fingerprint module with a key function, a battery cover assembly and a mobile terminal. The mobile terminal comprises the battery cover assembly; the battery cover assembly comprises a cover plate and the fingerprint module; the fingerprint module comprises a circuit board assembly; a fingerprint chip and a touch switch; the fingerprint chip and the touch switch are arranged at two opposite sides of the circuit board assembly and are arranged oppositely to each other; the fingerprint chip is used for collecting fingerprint information; the touch switch is used for controlling corresponding operations of the mobile terminal; the circuit board assembly is used for realizing electric connection between the fingerprint chip and the touch switch and a circuit main-board of the mobile terminal; the cover plate is provided with a touch region which corresponds to the fingerprint module; the thickness of the touch region is smaller than that of the other positions ofthe cover plate; and the fingerprint chip of the fingerprint module is connected with one side, close to the mobile terminal, of the touch region. Through the way above, dust and moisture can be prevented from entering the fingerprint module of the mobile terminal, and the key function of the fingerprint module can be realized.
Owner:河源市美晨联合智能硬件电子研究院 +2

Structure of notebook computer keyboard

The invention discloses a structure of a notebook computer keyboard, comprising a substrate, a flexible circuit board with key functions, silicone rubber keys, shear pins and key caps; the silicone rubber keys are directly adhered on the substrate; the key caps are connected with the substrate through the shear pins; the flexible circuit board is arranged below the substrate; and avoidance holes for assembling a computer are arranged on the flexible circuit board. According to the structure of the notebook computer keyboard, because the flexible circuit board which plays the roles of the keys is arranged at the bottom of the substrate, mechanism holes which are matched with key position mechanisms do not need to be arranged on the flexible circuit board, so that the number of the mechanical holes is greatly reduced, and the manufacturing of the circuit board is simpler. According to the structure of the notebook computer keyboard, a light guiding plate can be integrated with the circuit board, a conductive line which realizes the key functions is arranged on the light guiding plate, and a light-emitting diode (LED) lamp which provides a light source is adhered, so that a backlight plate, a power supply line, a shade chip and other materials in an original keyboard design are reduced, and simultaneously elements and devices of a computer main board for providing power supplies are reduced.
Owner:JIANGSU TRANSIMAGE TECH CO LTD

One-key multifunctional photoelectric mechanical keyboard

The invention discloses a one-key multifunctional photoelectric mechanical keyboard and belongs to the technical field of keyboards. The one-key multifunctional photoelectric mechanical keyboard comprises an upper cover and a lower cover, wherein ten protruding keys are arranged on the upper cover, a pressure sensor is pasted onto each key, an insulation film is pasted onto an upper surface of thepressure sensor, an upper PCBA is arranged below the upper cover, the pressure sensor and the upper PCBA are connected by a pressure sensor connection wire, an infrared ray receiving tube is arrangedabove the upper PCBA, a shading cover is arranged above the infrared ray receiving tube, and a lower PCBA is arranged above the upper PCBA. The thin film pressure sensor and the infrared tube are combined, the one-key multifunctional photoelectric mechanical keyboard is stable and reliable in performance, rapid in frequency response, long in service lifetime and high in interference resistant capability, multiple functions are achieved by one key, a finger position is not needed to move during key pressing, only gesture is made, the one-key multifunctional photoelectric mechanical keyboard isconvenient, a few keys are used, the one-key multifunctional photoelectric mechanical keyboard is small in size and low in cost, mass production is facilitated.
Owner:SHENZHEN DOKING TECH CO LTD

Control circuit, method and system applied to potentiometer and electronic equipment

The invention discloses a control circuit, method and system applied to a potentiometer and electronic equipment, and the circuit comprises a single-chip microcomputer and the potentiometer, the first end of a first resistor R1 on the potentiometer is connected with a power supply end, the second end of the first resistor R1 is connected with the first end of a second resistor R2, the second end of the second resistor R2 is connected with the first fixed end of a variable resistor Rv, and the first fixed end of the variable resistor Rv is connected with the single-chip microcomputer. A second fixed end of the variable resistor Rv is connected with a first end of a third resistor R3, and a second end of the third resistor R3 is grounded; a first contact of the key is connected with a first end of the second resistor R2, and a second contact of the key is connected with a second end of the second resistor R2; a center tap of the variable resistor Rv is connected with the input pin; and the single-chip microcomputer is used for collecting the voltage at the input pin and determining the key state. According to the application, through one input pin on the single-chip microcomputer, the potentiometer function can be realized, and the key function can also be realized, so that the number of occupied pins on the single-chip microcomputer is reduced.
Owner:北京允芯微电子有限公司

Remote control method and system based on electromagnetic induction

The present invention discloses a remote control method based on electromagnetic induction. The method comprises: forming an induced capacitor between a remote controller and a human body upon approaching of the human body, and generating an oscillation signal if a capacitance value of the induced capacitor reaches a predetermined value; generating, according to the oscillation signal, a remote control code value, and sending the same to a terminal device; receiving, by the terminal device, the remote control code value sent by the remote controller, and decoding the remote control code value to obtain a frequency value, wherein the frequency value is a oscillation frequency of the oscillation signal; comparing the frequency value to predetermined frequency intervals, wherein the predetermined frequency intervals respectively correspond to an action of the terminal device; and if the frequency value is within one of the predetermined frequency intervals for a predetermined duration, executing an action corresponding to said predetermined frequency interval. The present invention further discloses a remote control system based on electromagnetic induction, and the system is configured to execute the remote control method based on electromagnetic induction. The present invention achieves the function of a remote controller button without a contact with a remote controller, thus improving the reliability of a remote controller and terminal device, and making the terminal device more intelligent.
Owner:SHENZHEN TCL DIGITAL TECH CO LTD
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