Abstract: A method of performing automatic tuning on a deep learning model includes: utilizing an instruction-based learned cost model to estimate a first type of operational performance metrics based on a tuned configuration of layer fusion and tensor tiling; utilizing statistical data gathered during a compilation process of the deep learning model to determine a second type of operational performance metrics based on the tuned configuration of layer fusion and tensor tiling; performing an auto-tuning process to obtain a plurality of optimal configurations based on the first type of operational performance metrics and the second type of operational performance metrics; and configure the deep learning model according to one of the plurality of optimal configurations.

Abstract: A projection apparatus including a light source module, an eccentric-collimating lens, a prism lens group, a light valve and a projection lens is provided. The light source module is configured to provide an illumination light beam. The eccentric-collimating lens is disposed between the light sources and the light valve on a transmission path of the illumination light beam. The light valve is configured to convert the illumination light beam into an image light beam. The projection lens is configured to project the image light beam out of the projection apparatus. A first included angle between a first transmission direction of the illumination light beam incident on the eccentric-collimating lens and a central axis of the eccentric-collimating lens is greater than 0. The first transmission direction and a second transmission direction of the image beam exiting from the light valve are perpendicular to each other.

Abstract: An illumination system including two light source modules, two light guiding modules, a first reflector, and a light homogenization element is provided. The two light guiding modules are respectively disposed on transmission paths of light beams generated by the two light source modules to generate two guiding light beams. One of the guiding light beams is reflected to the light homogenization element by the first reflector. The other of the guiding light beams is directly transmitted to the light homogenization element. The guiding light beams are emitted from the light homogenization element and form an illumination light beam. A projection apparatus is also provided.

Abstract: A mobile hard disk drive includes an electrical module including a circuit board, a face panel and a holder box, and a hard disk tray detachably insertable through an insertion slot in the face panel into a receiving chamber in the holder box to force arched spring plates thereof into friction engagement with two opposite inner lateral walls in the receiving chamber of the holder box and lockable to the face panel by two hand screws that are mounted at an end plate of the hard disk tray for threading into respective locating screw holes at the face panel to lock the hard disk tray to the face panel of the electrical module.

Abstract: A USB connector positioning structure includes a protective casing affixed to a frame shell of a machine case around a USB connector insertion slot for guiding insertion of a male USB connector through the USB connector insertion slot into a plug hole in a female USB connector at a circuit board inside the machine case, and a positioning holder shell pivotally coupled to the protective casing and biasable between a close horizontal position and an opened vertical position and movable along two horizontal guide slots of the protective casing for holding an inserted male USB connector in connection with the female USB connector in the machine case and protecting the inserted male USB connector against external pressure, and holding screws for locking the protective casing and the inserted gale USB connector in position.

Abstract: A USB connector positioning structure includes a protective casing affixed to a frame shell of a machine case around a USB connector insertion slot for guiding insertion of a male USB connector through the USB connector insertion slot into a plug hole in a female USB connector at a circuit board inside the machine case, and a positioning holder shell pivotally coupled to the protective casing and biasable between a close horizontal position and an opened vertical position and movable along two horizontal guide slots of the protective casing for holding an inserted male USB connector in connection with the female USB connector in the machine case and protecting the inserted male USB connector against external pressure, and holding screws for locking the protective casing and the inserted gale USB connector in position.

Abstract: A USB flash drive positioning structure includes a circuit board carrying an electrical connector that defines therein an insertion slot for receiving a USB flash drive, and a USB flash drive positioning guide including a rectangular cage disposed above the electrical connector, an insertion passage defined in the rectangular cage in communication and alignment with the insertion slot of the electrical connector for the insertion of a USB flash drive into the insertion slot of the electrical connector and curved springy retaining arms suspending inside the rectangular cage around the insertion passage for retaining the inserted USB flash drive in the insertion passage.