An information input device includes: a communication interface configured to communicate with each of a first external apparatus that operates using a first operating system and a second external apparatus that operates using a second operating system; and a controller configured to operate in a first mode corresponding to a first driver used by the first external apparatus when transferring data to the first external apparatus, and operate in a second mode corresponding to a second driver different from the first driver and used by the second external apparatus when transferring data to the second external apparatus.

Various embodiments provide methods for Internet Protocol (IP) packet handling. Various embodiments may enable downlink (DL) data prioritization of IP packets for time-sensitive applications, for example by using differentiated services code point (DSCP) indications or type-of-service (TOS) indications in headers of the IP packets to distinguish prioritized IP packets from non-prioritized IP packets. In various embodiments, IP packets that are prioritized IP packets may be sent to another processor of a wireless device using a prioritized traffic handling configuration that has a lower latency than a default traffic handling configuration used for sending non-prioritized IP packets. Various embodiments may further enable uplink (UL) data prioritization of IP packets.

The present disclosure relates to a USB 2.0 photoelectric transmission system, which includes a first USB 2.0 connector, a second USB 2.0 connector, a first signal directional interpreting circuit, a second signal directional interpreting circuit, a first laser, a second laser, a first photodetector and a second photodetector, wherein a first end and a second end of the first signal directional interpreting circuit are respectively connected with a D+ pin and a D− pin of the first USB 2.0 connector; a third end and a fourth end of the first signal directional interpreting circuit are respectively connected with the first laser and the second photodetector.

A method for configuring a peripheral bus of an information handling system performs, as part of a boot sequence, an initial configuration of a chipset setting pertaining to the bus based on a descriptor stored in a nonvolatile storage resource. After an operating system is loaded, a controller detects a peripheral device connecting to the bus and responds by performing a runtime configuration of the chipset setting based on capability information obtained from the peripheral device. The peripheral bus may comprise a USB pipe and a USB-C type connector, wherein the peripheral device is detected by a USB power delivery (PD) controller based on configuration channel (CC) pins of the USB-C connector. The PD controller may signal the chipset and send the device's capability information to the chipset. The PD controller may assert a PMCALERT# signal of the chipset's and send the capability information via a system management link (SMLink1) .

The present invention provides a DP-out adapter including a decoder, a clock signal generating circuit, a DP signal generating circuit and a symbol counter value comparator. The decoder is configured to decode a USB signal to generate a plurality of packets. The clock signal generating circuit is configured to generate a clock signal. The DP signal generating circuit is configured to generate a DP signal according to the packets, and output the DP signal according to the clock signal. The symbol counter value comparator is configured to generate a first counter value according to a number of symbols corresponding to the plurality of packets, and use the clock signal to count to obtain a second counter value, and compare the first counter value and the second counter value to generate a control signal to the clock signal generating circuit to adjust a frequency of the clock signal.

An audience measurement computing system for monitoring a media presentation device in a monitored environment is described and includes a network interface, at least one processor, and a non-transitory computer-readable medium comprising instructions executable by the processor(s). The computing system is configured to obtain, via a cable connected to an input port of the media presentation device, a voltage signal generated by the media presentation device based on an operational state of the media presentation device; compare voltage indicated by the voltage signal to a threshold; based on the comparing, generate timestamped operational state data comprising a record indicative of when the media presentation device is in an on-state; obtain audience measurement data representing one or more media signals communicated to the media presentation device; and transmit, via the network interface over a network and to a central facility, the timestamped operational state data and the audience measurement data.

An electronic device according to various embodiments of the present invention may comprise: a connector comprising at least one power terminal for receiving power supplied from an external electronic device, and at least one data terminal for transmitting/receiving data to/from the external electronic device; and a processor comprising at least one sensing terminal connected to the at least one data terminal through at least one resistor, wherein the processor is configured to: when the external electronic device is connected to the electronic device through the connector, check a value corresponding to the voltage at the at least one data terminal, by using the at least one sensing terminal; and transmit, to the external electronic device, a control signal for controlling power supply from the external electronic device, on the basis of the value checked by means of the at least one sensing terminal. The various embodiments of the present invention may also include other embodiments.

The present disclosure aims to enable a total of 127 or more USB devices to be connected on the same network regardless of connection sites.

A USB connection control system of the present disclosure is a USB connection control system including a plurality of USB-network conversion devices and a management device being connected to each other via a network, in which the management device holds, per user, connection information defining a connection destination of a USB device connected to the USB-network conversion device, and at least one of the plurality of USB-network conversion devices receives, from the management device, the connection information corresponding to identification information unique to the at least one of the plurality of USB-network conversion devices and communicates with a to-be-connected USB-network conversion device based on the received connection information, and to establish connection with a USB device that is connected to the to-be-connected USB-network conversion device.

An electronic apparatus and a USB interface switching method. The electronic apparatus includes: a first control component corresponding to a first operating system, a second control component corresponding to a second operating system, a USB interface, and a USB interface switching circuit. The first control component is used to detect the data transmission state between the USB interface and the first control component. The second control component is used to detect the data transmission state between the USB interface and the second control component.

A USB chip includes positive and negative data pins, first and second transceiver circuits, a switching circuit, and a control circuit. During a high-speed handshake stage, the control circuit controls the switching circuit to be in a second state to disconnect the positive and negative data pins from a first terminal impedance circuit and actuates the second transceiver circuit to transmit a second voltage signal via the positive and negative data pins alternately. During a high-speed transmission stage, the control circuit controls the switching circuit to be in a first state to connect the positive and negative data pins with the first terminal impedance circuit and actuates the first transceiver circuit to transmit a first voltage signal, which has a first voltage level lower than a voltage level of the second voltage signal, via the positive and negative data pins alternately.