135 results about "Universal series" patented technology

The present invention is a combo-type male and female universal series bus (USB) connector which is characterized in that either the USB metallic shell or the electrically connecting terminal board is movable to expose or shield a plurality of electrically connecting terminals attached to the electrically connecting terminal board. When the electrically connecting terminals are completely exposed, the USB connector acts as a male USB connector, and when the electrically connecting terminals are shielded, the USB connector acts as a female USB connector.

A motherboard including a bus connector and a printed circuit board (PCB) is provided. The bus connector includes a plurality of pins, and each of the pins further includes a first end and a second end. The PCB includes a plurality of contact pads. The second ends of the pins are electrically connected to the contact pads of the PCB via a surface mounted technology (SMT), respectively.

A universal series bus (USB) power supply has a DC power source, a USB power interface and a voltage modulation module. The USB power interface is for connecting to an electronic device that stores a default D+ voltage and a default D− voltage. The voltage modulation module connects to and outputs signals to the D+ and D− terminals of the USB power interface. If voltage levels of the output signals are not respectively identical to the default D+ and D− voltages, the voltage modulation module changes the voltage levels of the signals output to the D+ and D− terminals of the USB power interface until the voltage levels of the output signals are respectively identical to the default D+ and D− voltages. Therefore, the USB power supply may be applied to any kind of electronic device that is charged over a USB interface.

The invention discloses a device which can automatically switch into a host or peripheral equipment with universal series bus (USB) and a relative method. In a device with USB interfaces, the inventive device can automatically switch into a USB host or USB device via checking USB handshake protocol. The inventive device comprises a host mode component, a peripheral mode component, a random automatic switcher and a check component, wherein the random automatic switcher uses random time to process switch connection between the host mode component and peripheral mode component, the check component detects if the handshake protocol between the D+ and D- pins of the USB interface and an external USB device meets host mode or device mode. When the inventive device checks that the external USB device is host device, the inventive device can switch into a peripheral device, and when checks that the external USB device is peripheral one, the inventive device switches into a host device.

A wireless transmission apparatus comprises a wired network port for exchanging data with a computer, a wireless network port including a radio frequency circuit module, a processing unit for converting the format of the data transmitted between the wired network port and the wireless network port, and a power port electrically connected to a universal series bus (USB) port of the computer by which the wireless transmission apparatus is powered. The wireless transmission apparatus can further comprise a power controller electrically connected to the power port, wherein the power controller comprises a voltage transformer adapted to convert a voltage of the power port into a voltage suitable for the operation of the wireless transmission apparatus and a power-saving controller adapted to suspend the power supply to the radio frequency circuit module according to a power control signal generated by the processing unit.

The invention discloses a method for alternating files between networks, which comprises a first gateway server and a second gateway server. The first gateway server is used to obtain new files and to store the files into a designated catalog of the first gateway server, and the second gateway server is used to duplicate the new files to a corresponding catalog in the second gateway server through universal series bus USB connection. The method uses a mode of USB mirror images to finish alternation between an inner network and an outer network on the file level, IP chain circuits are strictly prevented from the inner network on a physics chain circuit, network virus can not enter local area networks, and the network transmission safety degree is improved.

An automatic control system for vehicle off-line double-idling discharging detection is provided. The automatic control system improves production efficiency, meets requirements for tatk time, reduces labor strength, does not need a rotating speed sensor, and is accurate in detection. The automatic control system comprises an industrial personal computer, a scanning gun, a server end computer, a discharging analyzer and a vehicle communication transit system (VCI). The VCI comprises a main control module, a K interface circuit, a controller area network (CAN) interface circuit and a power module. The power module supplies power to the main control module connected with the industrial personal computer through a universal series bus (USB) interface, the main control module is connected with the K interface circuit and the CAN interface circuit through a serial communication interface (SCI) interface and a CAN interface, the K interface circuit and the CAN interface circuit are both connected with an in-vehicle network through diagnosis wires, the in-vehicle network is connected with an electric control module (ECU) of an engine through a communication bus, the engine is connected with the discharging analyzer connected with the industrial personal computer, the scanning gun is connected to the industrial personal computer, and the server end computer is connected with the industrial personal computer and a management end computer. The invention further provides a detecting method.

The invention relates to a file safe distribution method based on a universal series bus (USB) flash disk. Validity of a user identity is confirmed based on identity authentication based on a USB flash disk chip serial number, and the safe distribution and safe use of an Excel file is ensured by using methods of a custom specific code, message digest (MD) 5 validation, secondary encryption and the like. In the process of distribution and use of the Excel file, the file safe distribution method based on the USB flash disk enhances the protection to file contents and the authentication of the user identity, and enables the Excel file to be distributed and used safely and reliably. The USB flash disk chip serial number instead of a computer hard disk serial number is bound, and convenience is achieved as the USB flash disk is easy to carry and can be used in different computers by a user.

A Universal Series Bus USB port detection and testing circuit, configured to detect the voltage output of a USB port of an electronic device, includes a voltage comparing circuit and an indicating circuit. The indicating circuit is connected to an output terminal of the voltage comparing circuit. The voltage comparing circuit compares the voltage output from the USB port against a reference voltage and output a signal whereby the indicating circuit indicates whether the voltage is within, or above, or below, the standard range.

A universal series bus (USB) frequency synchronous apparatus using a start of frame (SOF) signal generated by a master device to mark a reference interval is disclosed. The frequency synchronizing apparatus includes a frequency divider, a counter unit with a default pulse number, an arithmetic unit, and an adjusting unit. The frequency divider divides a high frequency signal by a variable frequency factor to generate a lock frequency signal. The counter is used to detect a pulse number of the lock frequency signal at a reference interval and obtain a pulse difference between the default pulse number and the detected pulse number of the lock frequency signal.

The invention relates to a portable Beidou communication emergency terminal hardware structure with low power consumption. In the communication technical scheme, a universal series bus (USB) interface is connected with an intelligent terminal (such as an intelligent mobile phone, a tablet computer and the like) so that the intelligent terminal completes the man-machine interaction; and the emergency communication information can complete the Beidou communication task in a keying manner via the terminal. The invention further discloses a power supply design relevant to the portable terminal and an input and output (IO) sharing method for reducing the used singlechip pins; and the portable Beidou terminal realized by the way is combined with the application software customized on a special Beidou information service centre and the intelligent terminal, so that the emergency communication application under the environment without communication network signals can be effectively met.

The invention discloses a system management bus (SMBUS)-based keyboard video mouse (KVM) switch with local and remote functions, which belongs to the field of computers. The switch consists of a remote KVM switch management part and a local KVM switch management part, wherein the remote KVM switch management part performs the switch management on each signal of the KVM by a remote management central processing unit (CPU) through an SMBUS and or input/output signals extended from the SMBUS, and packages data and transmits the packaged data to a remote management machine through an Ethernet; and the local KVM switch part performs the switch management on each signal of the KVM by a switch management microcontroller unit (MCU) through the SMBUS and/or the input/output signals extended from the SMBUS, and provides output interfaces of a local video graphics array (VGA) interface, a universal series bus (USB) interface, a play station 2 (PS2) interface and a component object model (COM) interface. The switch has powerful functions of simultaneous local and remote switch and simultaneous show-on screen (OSD) display, supports other management functions of the SMBUS, and has rich output interfaces.

The invention relates to a method for determining an outside device connected to a portable terminal and a determining device, in particular to a method for determining an outside device connected to a portable terminal and a determining device differentiating the outside device connected to a connecting part into a universal series bus device group and a standard sharing pin connecting device group by using a port contained in a control part, so as to differentiate the device belonging to the corresponding device group into, such as universal series bus device for communication, universal series bus device for charging and special charger, and the like.

The invention relates to a rotary power head of a cosine tooth profile drilling machine. A cosine tooth profile transmission and speed change device is composed of an input gear shaft, a large gear and an output shaft, a cover plate is fixed on a machine seat, a flange is fixed on the cover plate, the input gear shaft is supported on the cover plate and the machine seat respectively together with a bearing A and a bearing B, a motor is fixed on the flange and connected with the input gear shaft, the output shaft is supported on the machine seat and the cover plate respectively together with a bearing C and a bearing D, a joint type forced filling oil cup penetrates a small end cover at the tail part of the input gear shaft and is connected with the input gear shaft, an air inlet hole is arranged on an air chamber, the air chamber is fixed on the machine seat, a seal A and a seal B are matched with the air chamber and the output shaft, a radial hole on the output shaft is communicated with the air chamber, and an internal thread hole is arranged on the output shaft. The invention has the advantages of overcoming the shortcomings of a traditional speed reducer and the rotary power head, providing a universal series for the speed reducer and providing a rock drilling mechanical rotary power head which is convenient to detach and mount, small in radial size, large in transfer torque and applicable to heavy load for the drilling machine.

The invention relates to an automatic detection device for a trunk lamp. A mounting seat is mounted in a test area, and an electric push rod for controlling a key switch of the trunk lamp is arranged at the upper part of the mounting seat; an illumination sensor is arranged on one side of the mounting seat and connected with a data acquisition card via an illumination measuring plate for performing AD (Analog-Digital) conversion on illumination, the data acquisition card and an isolating DIO (Digital Input Output) card are connected with an industrial control computer via a PCI (Peripheral Component Interconnection) slot, the industrial control computer acquires the current value of the illumination sensor via the data acquisition card, the industrial control computer is connected with a programmable power supply via a USB (Universal Series Bus) bus, the programmable power supply is connected with a relay control board, one end of a digital multimeter is connected with the industrial control computer via a USB data wire, while the other end is connected with the relay control board, the industrial control computer is connected with the relay control board and a micro switch control board via the isolating DIO card, and the industrial control computer is further in communication connection with a human-computer operating interface and a display. The automatic detection device can be used for automatically detecting various parameters of the trunk lamp.

A bridge module for updating basic input/output system (BIOS) includes a universal series bus (USB) port and a series peripheral interface bus (SPI) port which are used to connect to a communication device and an electrical device respectively. The communication device stores a BIOS updating data and includes USB port. The electrical device includes a motherboard, a SPI port and a BIOS chip. The SPI port is electrically connected to the motherboard. The BIOS chip is electrically connected to the SPI port and stores a BIOS old data. The method includes the steps of making the bridge module connect to the communication device and the electrical device; and triggering updating process to make the communication device transmit the BIOS updating data to the electrical device through the bridge module to update the electrical device.

The invention discloses a dual-screen notebook computer, belonging to the technical field of computer devices. The dual-screen notebook computer comprises a first push-pull type keyboard, a host body, a compact disk driver, a hinge shaft, a secondary machine body, a second push-pull type keyboard, a USB (Universal Series Bus) data port, a horizontal rotating shaft, a first display screen and a second display screen, wherein the first display screen is arranged on the host body; the first push-pull type keyboard is arranged on the side wall at one side of the host body; the compact disk drive and the USB data port are arranged on the side wall of the host body; the hinge shaft is arranged at the other side of the host body; the horizontal rotating shaft is arranged on the hinge shaft; the secondary machine body is arranged on the horizontal rotating shaft; the second display screen is arranged on the secondary machine body; the second push-pull type keyboard is arranged on the side wall at one side of the secondary machine body, which is away from the horizontal rotating shaft; and a power supply device is arranged on the host body. The dual-screen notebook computer disclosed by the invention has the benefits that two persons can use one notebook computer simultaneously; a plurality of people can communicate and view through one notebook computer; and the dual-screen notebook computer has a concise structure, small size, easiness for carrying and the like.

The invention relates to an automatic gearbox controller semi-physical simulation test system. The automatic gearbox controller semi-physical simulation test system comprises a real object part and a virtual simulation part. The real object part comprises an automatic gearbox controller and a data collection board which is used for collecting structural parameters and operating parameters of a to-be-tested automobile. The virtual simulation part comprises an upper computer and a test machine, the upper computer is used for setting up an automatic gear shifting algorithm model, and the test machine is used for setting up a semi-physical simulation model. The data collection board is used for being connected with the to-be-tested automobile through a sensor and respectively connected with the upper computer and the test machine through universal series bus (USB) interfaces, the upper computer is connected with the test machine through a serial interface, the automatic gearbox controller is respectively connected with the test machine and the upper computer through joint test action group (JTAG) interfaces, and the problems that a danger coefficient is high and cost is high when an automatic gearbox controller is installed on a real automobile for a test in a later stage of development of automatic gearbox electronic control system are solved.

An active delay device in a streaming media transmission system based on a universal series bus is provided and comprises a transmission delay determining unit, an actuating delay determining unit, an intrinsic delay determining unit, an intrinsic delay, a comparator, an active delaying arrangement unit, an active delay value, wherein the intrinsic delay is used for calculating each terminal device according to the transmission delay and the actuating delay, and the active delay value is used for determining each terminal device according to a maximum intrinsic delay value and the intrinsic delay of each terminal device. The terminal devices which need to perform control commands in the same frequency can accurately be synchronized, or each terminal device can perform each action according to strict time intervals, particularly in a sound mixing system, the fact that each terminal device strictly performs displaying of sound mixing signals at the same time is effectively ensured, and echo is prevented from being generated.

The invention discloses a mobile terminal which comprises a mainboard, a USB (universal series bus) connector, an elastic sealing sleeve, a front housing and a rear housing, wherein the front surface of the USB connector is fixed on the mainboard; the elastic sealing sleeve is sleeved on the USB connector to seal the USB connector; and the rear housing is connected with the front housing to limit an accommodating space, the mainboard is arranged in the accommodating space, an opening of the USB connector is exposed from the transverse outer side of the accommodating space, and the rear housing and the front housing compress the elastic sealing sleeve from the periphery of the elastic sealing sleeve. According to mobile terminal disclosed by the invention, as the elastic sealing sleeve is sleeved on the USB connector, the mobile terminal has the advantages of good waterproof performance, high reliability, long service life and simplicity in use.

The invention relates to a test device and method of a four-port sensor signal splitter with an LED. The device comprises a power circuit, a microcontroller, an optical coupling relay control circuit,a test point voltage acquisition circuit, a CAN interface circuit and a touch liquid crystal display screen, wherein the microcontroller, the optical coupling relay control circuit, the test point voltage acquisition circuit, the CAN interface circuit and the touch liquid crystal display screen are connected with the power circuit, the microcontroller is connected with the optical coupling relaycontrol circuit and the test point voltage acquisition circuit by a digital output port and an analog-digital conversion interface, is connected with the CAN interface circuit by a CAN interface and is connected with the touch liquid crystal display screen by a universal series interface, five test socket of the test point voltage acquisition circuit are respectively connected with a bus plug, a first port plug, a second port plug, a third port plug and a fourth port plug of the four-port sensor signal splitter with the LED. The device has the advantages of low test cost, high test efficiencyand the like and is convenient to use.