TWS earphone that charges and reset in area

The utility model relates to a TWS earphone that charges and reset in area, when being put into the box that charges and charge when main earphone or from the earphone, the pin that charges of bluetooth chip begins to go up the electricity, and the information that will charge was known to the bluetooth chip this moment, and nevertheless owing to just send reset signal after postponing reset circuit delay time T, so the bluetooth chip can not restore to the throne immediately, and the bluetooth chip is just put on record to another earphone if having time like this, put the back on record, thereset pin of bluetooth chip received the reset signal who postpones to send and then resetd, so both having remain the function of charging and reseing, and having put on record to another earphone before reseing again, and replaced current signal conversion circuit with postponing reset circuit, and owing to only do the adjustment slightly on the circuit board, need not do the change of exteriorstructure ...

Universal serial bus (USB) connector

The invention relates to a universal serial bus (USB) connector. The USB connector is applicable to a USB socket in accordance with a first USB specification. The USB connector comprises a first USB plug and a second USB plug, wherein the first USB plug accords with the first USB specification; the second USB plug combined with the first USB plug accords with a second USB specification different from the first USB specification; and the second USB plug is separably adjacent to the first USB plug.

Memory device and protection method

The invention discloses a memory device and a protection method thereof. The memory device comprises a memory unit, a memory control unit, a switch and a control circuit, wherein, the memory control unit is used for reading and writing the memory unit and internally provided with a protection unit; the switch is provided with a keyed end and a normal end; the control circuit is coupled between the switch and the memory control unit and used for detecting the position of the switch. When the memory device receives the working voltage and the switch is positioned at the keyed end, the control circuit can automatically cause the protection unit to forbid the memory control unit to read or write in the memory unit.

Multi-scale linkage flood risk early warning method for plain area

The invention discloses a surface, block and point scale linkage flood early warning method based on a plain area inland river forecast water level, flood surface scale early warning is carried out according to a plain representative site, and for a surface scale early warning area, a GIS technology and the spatial autocorrelation of the plain area water level in the flood forecast process are utilized to calculate a submerging grid and depth, so that a flood early warning result is obtained. And block and point scale early warning is carried out. The method is a simple and rapid method. The method comprises the following steps: collecting basic data of a plain area; the invention discloses a surface, block and point multi-scale linkage early warning mechanism. Comparing the predicted water level, the characteristic water level and the dike elevation of the representative site of the region, and carrying out surface scale flood risk early warning; taking the surface scale early warning ...

Portable device with reciprocating type detection terminal and detection and control method thereof

The invention discloses a portable device with a reciprocating type detection terminal and a detection and control method thereof. A detection terminal is arranged at the position of a connector; when the portable device is inserted into a host system, the detection terminal is pushed to generate signal changes, so that a controller in the portable device executes a device instruction according to the signal, or when the portable device is removed from the host system, the detection terminal is pushed to change the signal until the portable device is separated from the host system completely,and the controller executes a device instruction which is set additionally by utilizing the time of several milliseconds, so that the portable device has diversified computer control and provides a power-off protection mechanism of data transmission.

Active noise reduction earphone filter research and development debugging system and method thereof

The invention discloses an active noise reduction earphone filter research and development debugging system which comprises a hardware system and a software system, a PC terminal is connected with a Bluetooth adapter and a sound card, and the invention further provides an active noise reduction earphone filter research and development debugging method which comprises the following steps: S1, a computer drives the Bluetooth adapter to be connected with an earphone, S2, a target transfer function is calculated, the method comprises the steps of S1, inputting a noise reduction filter, S2, inputting the noise reduction filter, S3, inputting filter parameters, S4, manually fine-tuning and modifying the imported filter parameters, S5, clicking a current interface filter characteristic button, S6, writing the adjusted IIR filter parameters into an earphone chip, and S7, displaying an optimal noise reduction performance curve on a system interface. The method has the advantages that the development ...

Memory device and protection method

Portable device with reciprocating type detection terminal and detection and control method thereof

The invention discloses a portable device with a reciprocating type detection terminal and a detection and control method thereof. A detection terminal is arranged at the position of a connector; when the portable device is inserted into a host system, the detection terminal is pushed to generate signal changes, so that a controller in the portable device executes a device instruction according to the signal, or when the portable device is removed from the host system, the detection terminal is pushed to change the signal until the portable device is separated from the host system completely, and the controller executes a device instruction which is set additionally by utilizing the time of several milliseconds, so that the portable device has diversified computer control and provides a power-off protection mechanism of data transmission.

Cardiotachometer step earphone

The utility model belongs to the technical field of the technique of earphone and specifically relates to indicate a cardiotachometer step earphone. The utility model provides a pair of cardiotachometer step earphone, including the earphone shell, be provided with cardiotachometer step module in the earphone shell, cardiotachometer step module including MCU, be used for measuring the first sensorof rhythm of the heart and be used for the second sensor of meter step, realization data transmission is connected through the hardware interface module with MCU respectively to first sensor and second sensor. The utility model provides a pair of cardiotachometer step earphone, through real -time collection light sensor and triaxial acceleration sensor's data, rapid calculation user's rhythm of the heart and motion stride frequency, convenience of customers uses, real time monitoring user's rhythm of the heart value and stride frequency value.

Type of digifax mixed type C plug earphone

The utility model belongs to the technical field of the earphone technique and specifically relates to indicate a type of digifax mixed type C plug earphone. It includes be provided with type on the earphone cord the c plug, type be it used for discerning type to be provided with in the c plug the type of c plug the compatible management circuit of c agreement, host system and type be provided with between the compatible management circuit of c agreement and be used for turning into digital data signal the analog data signal, being used for turning into the analog data signal digital data signal's digital analog conversion module, host system is connected with the digital analog conversion module, digital analog conversion module and type the compatible management circuit connection of c agreement. The utility model discloses automatic switch -over to analog channel when can realize originating node to realize the intercommunication with the cell -phone, in addition still including the ...