Abstract: A projection picture correction system, and an electronic equipment and a projector thereof are provided. The projection picture correction system includes a projector and a processing device. The projector is for providing keystone correction parameters. The processing device connects to the projector through a data transfer interface to receive the keystone correction parameters from the projector, performs a keystone correction on at least one picture according to the keystone correction parameters and generates a corrected picture, and connects to the projector through an image transmission interface to transmit the corrected picture to the projector for projection.

Abstract: The transmission device with external power includes a first USB type-C connector, a second USB type-C connector, a power transmission cable, a data transmission cable and a switching unit. The first USB type-C connector and the second USB type-C connector are connected to the first electronic device and the second electronic device. The power transmission cable is connected to the first USB type-C connector and the second USB type-C connector, so that the first electronic device supplies power to the second electronic device through the power transmission cable according to charging information of the second electronic device. The switching unit is connected to a power input end and the second USB type-C connector through the power transmission cable. When the first electronic device supplies power to the second electronic device, the switching unit is turned on and the power input end supplies power to the second electronic device.

Abstract: An electronic device is connected to a second electronic device with a second universal serial bus (USB) Type-C port and a second power delivery controller through a connecting device. In the electronic device, a first power delivery controller is connected to a first USB Type-C port, so that the first power delivery controller communicates with the second power delivery controller to generate transmission handshaking information through the first USB Type-C port, the connecting device, and the second USB Type-C port. An analysis module is electrically connected to the first power delivery controller, to determine at least one function type transmissible between the electronic device and the second electronic device according to the transmission handshaking information. A reminder device is electrically connected to the analysis module and used for indicating the at least one function type supportable between the electronic device and the second electronic device.

Abstract: The transmission device with external power includes a first USB type-C connector, a second USB type-C connector, a power transmission cable, a data transmission cable and a switching unit. The first USB type-C connector and the second USB type-C connector are connected to the first electronic device and the second electronic device. The power transmission cable is connected to the first USB type-C connector and the second USB type-C connector, so that the first electronic device supplies power to the second electronic device through the power transmission cable according to charging information of the second electronic device. The switching unit is connected to a power input end and the second USB type-C connector through the power transmission cable. When the first electronic device supplies power to the second electronic device, the switching unit is turned on and the power input end supplies power to the second electronic device.

Abstract: The disclosure provides a USB expanding device comprising a plurality of USB type-C connection units, a transmission controller, and a main controller. Each of a USB type-C connection unit includes a USB type-C port, a multiplexer, and a power transmission controller. The USB type-C port provides for connecting to an external device. The multiplexer connects to the USB type-C port and the power transmission controller. The transmission controller connects to the multiplexers of each of the USB type-C connection units for controlling the transmission of data, and the main controller connects to the power transmission controllers of each of the USB type-C connection units to distribute power according to the charging request information of the power transmission controllers.

Abstract: A projection picture correction system, and an electronic equipment and a projector thereof are provided. The projection picture correction system includes a projector and a processing device. The projector is for providing keystone correction parameters. The processing device connects to the projector through a data transfer interface to receive the keystone correction parameters from the projector, performs a keystone correction on at least one picture according to the keystone correction parameters and generates a corrected picture, and connects to the projector through an image transmission interface to transmit the corrected picture to the projector for projection.

Abstract: The disclosure provides a USB expanding device comprising a plurality of USB type-C connection units, a transmission controller, and a main controller. Each of a USB type-C connection unit includes a USB type-C port, a multiplexer, and a power transmission controller. The USB type-C port provides for connecting to an external device. The multiplexer connects to the USB type-C port and the power transmission controller. The transmission controller connects to the multiplexers of each of the USB type-C connection units for controlling the transmission of data, and the main controller connects to the power transmission controllers of each of the USB type-C connection units to distribute power according to the charging request information of the power transmission controllers.