Abstract: A 3D printer including a machine platform, a container and an injection module is provided. The container and the injection module are disposed on the machine platform, and the injection module injects a liquid forming material into the container. The injection module includes a bottle body, a deformable opening member, a driving assembly and a flow guide member. The bottle body contains the liquid forming material. The driving assembly is adapted to deform the deformable opening member. The driving assembly drives the deformable opening member to an open state, and the liquid forming material in the bottle body flows to the flow guide member through the deformable opening member, and flows to the container through the flow guide member. The driving assembly drives the deformable opening member to a close state, and the liquid forming material stops flowing to the flow guide member from the deformable opening member.

Abstract: A method for forming a memory device is disclosed, including providing a substrate, forming an isolation structure and plural active regions in the substrate, forming a plurality of island features on the substrate respectively covering two of the terminal portions of the active regions, using the island features as an etching mask to etch the substrate to perform a first etching process to define a first recessed region and plural island structures on the substrate. The island structures respectively comprise the two terminal portions of the active regions and the first recessed region comprises the central portions of the active regions.

Abstract: A three-dimensional printing method for a three-dimensional printing system including a tank, a platform, an injection module, a warning module, a curing module, and a control module is provided. The control module is electrically connected to the curing module, the injection module, and the warning module. The method includes: analyzing a required amount of the liquid forming material corresponding to a three-dimensional object; obtaining a safe amount of the liquid forming material in the tank; and comparing the required amount and the safe amount, wherein the control module provides a response signal to the injection or warning module when the safe amount is less than the required amount. The injection module receives the response signal to inject the liquid forming material to the tank. The warning module receives the response signal to remind a user to provide the liquid forming material to the tank.

Abstract: A method for forming patterns is provided in the present invention. The process includes the steps of using a first mask to perform a first exposure process to a photoresist, using a second mask to perform a second exposure process to the photoresist, wherein the corners of the second opening patterns in the second mask and the corners of the first opening patterns in the first mask overlap each other, and performing a development process to remove the unexposed portions of the photoresist in the two exposure processes to form staggered hole patterns therein.

Abstract: A transmission device includes a plurality of guide pins, a first plate having multiple first guide slots, a second plate having multiple second guide slots, and a third plate having multiple third guide slots. A projection of each of the first guide slots on the third plate is deviated from a respective one of the third guide slots in a first rotational direction. A projection of each of the second guide slots is deviated from a respective one of the third guide slots in a second rotational direction which is opposite to the first rotational direction. The guide pins are respectively and slidably disposed in the second guide slots. When the first plate rotates, the guide pins slide synchronously and are equidistant from an axis.

Abstract: A 3D printing method adapted for a 3D printer is provided. The 3D printer includes a tank filled with a liquid-state forming material, a platform, a curing module and a control module. At least one of the tank and the platform as well as the curing module are electrically connected to the control module to be controlled by the same, and a 3D object is formed on the platform. The 3D printing method includes analyzing a model of the 3D object to obtain a layered information; the control module correspondingly distributes the layered information at a plurality of forming positions at the bottom of the tank. A forming layer is cured by the curing module and located at a forming position, and then the platform and the tank rotate relatively to move the forming layer to another forming position, and another forming layer is formed at the another forming position.

Abstract: A recirculating gradient power system includes a motion carrier, a counterweight, power cylinders and a control module. A central vertical axis of the motion carrier has a rotating shaft pivotally connected with the counterweight. The power cylinders connected with a pressure source are evenly arranged at diagonal corners around the periphery of the central vertical axis. The control module connected with the power cylinders controls operation of the power cylinders which are set in advance when the counterweight is rotationally displaced to a predetermined stroke. The pressure source sequentially provides compressed gas fluid to the power cylinders to make the motion carrier continuously change its tilt orientation and tilt angle, thus forming a virtual continuous gradient. The counterweight is rotationally displaced from a high point of the motion carrier toward a lower point of the motion carrier about the rotating shaft by gravity, and the rotating shaft rotates continuously.

Abstract: A laser module with removable structures of three-dimensional printer includes a platform, a carrying seat and a laser module. The platform has a working side and a movement mechanism; the movement mechanism at least has a displacement rod. The carrying seat is disposed on the displacement rod, and the movement mechanism drives the carrying seat to move on the working side along the displacement rod. The carrying seat has an assembly portion, and the laser module is disposed on the assembly portion of the carrying seat and detachably integrated with the assembly portion as a whole. Thereby the purposes of fast and convenient disassembly can be achieved through assembling the laser module on the carrying seat.

Abstract: A Reliable User Datagram Protocol (RUDP) apparatus and a dynamic adjustment method of a sliding window parameter of RUDP are provided. The dynamic adjustment method of the sliding window parameter of RUDP includes the following steps. In accordance with whether the acknowledgement from the receiver is overtime, and in accordance with the difference between the sliding window parameter and an estimated maximum value, the transmitter adjusts a step value. The transmitter adjusts the sliding window parameter according to the step value.

Abstract: Aspects of the technology relate to a cover (e.g., for a handheld electronic device). The cover may include a cover body configured for securement to a handheld electronic device and comprising an accessory attachment area, wherein the accessory attachment area includes a plurality of receivers, and wherein the accessory attachment area is configured for coupling with an accessory in at least one of a plurality of orientations. In some aspects, each receiver further includes a space recessed into the cover body that is bounded, at least partially, by a recess wall, wherein each receiver includes an engagement surface configured for abutting engagement with a projection associated with an accessory when the projection is disposed in a secured configuration within a respective space. An electrical device cover and various attachment devices are also provided.

Abstract: Aspects of the technology relate to a cover (e.g., for a handheld electronic device). The cover may include a cover body configured for securement to a handheld electronic device and comprising an accessory attachment area, wherein the accessory attachment area includes a plurality of receivers, and wherein the accessory attachment area is configured for coupling with an accessory in at least one of a plurality of orientations. In some aspects, each receiver further includes a space recessed into the cover body that is bounded, at least partially, by a recess wall, wherein each receiver includes an engagement surface configured for abutting engagement with a projection associated with an accessory when the projection is disposed in a secured configuration within a respective space. An electrical device cover and various attachment devices are also provided.

Abstract: Aspects of the technology relate to a cover (e.g., for a handheld electronic device). The cover may include a cover body configured for securement to a handheld electronic device and comprising an accessory attachment area, wherein the accessory attachment area includes a plurality of receivers, and wherein the accessory attachment area is configured for coupling with an accessory in at least one of a plurality of orientations. In some aspects, each receiver further includes a space recessed into the cover body that is bounded, at least partially, by a recess wall, wherein each receiver includes an engagement surface configured for abutting engagement with a projection associated with an accessory when the projection is disposed in a secured configuration within a respective space. An electrical device cover and various attachment devices are also provided.

Abstract: A 3-D printing apparatus includes a frame, a tank, an automatic-filling module and a control unit. The tank is disposed in the frame and contains a liquid-forming material. The automatic-filling module includes a sensing unit, a reservoir, a filling pipe and a pressuring unit. The sensing unit detects a liquid level of the tank. The reservoir stores the liquid-forming material. The filling pipe connects to the reservoir and includes an outlet. A maximum liquid level of the liquid-forming material in the reservoir is lower than or equal to a level of the outlet. A gap exists between the outlet and a top edge of the tank. The pressuring unit provides a positive pressure to the reservoir so that the liquid-forming material in the reservoir flows to the tank. The control unit determines whether the pressuring unit provides the positive pressure to the reservoir according to the liquid level.

Abstract: An inherent information generating device adapted to an integrated circuit includes a plurality of pairs of source memory cells and a comparison circuit. One of the pairs of source memory cells includes a first source memory cell with a first electrical parameter value and a second source memory cell with a second electrical parameter value. The comparison circuit, coupled to the pairs of source memory cells and configured to generate inherent information of the integrated circuit, includes a first comparator. The first comparator is coupled to the first and second source memory cells, and is configured to compare the first electrical parameter value with the second electrical parameter value, and generate the bit value of a first bit of the inherent information according to the comparison result.

Abstract: Aspects of the technology relate to a cover (e.g., for a handheld electronic device). The cover may include a cover body configured for securement to a handheld electronic device and comprising an accessory attachment area, wherein the accessory attachment area includes a plurality of receivers, and wherein the accessory attachment area is configured for coupling with an accessory in at least one of a plurality of orientations. In some aspects, each receiver further includes a space recessed into the cover body that is bounded, at least partially, by a recess wall, wherein each receiver includes an engagement surface configured for abutting engagement with a projection associated with an accessory when the projection is disposed in a secured configuration within a respective space. An electrical device cover and various attachment devices are also provided.

Abstract: A relay gateway device includes a processor and a storage, in which when a packet transmission is performed between a first mobile device and a second mobile device and the second mobile device switches from the relay gateway device to another, the IP address of the second mobile device changes from a former IP address to a current IP address. When the first mobile device transmits a first packet to the second mobile device in which the destination address of the first packet is the former IP address, the processor of the relay gateway device modifies the destination address of the first packet into the current IP address according to the former IP address and the current IP address of the second mobile device in a list of the storage and then transmits the first packet to the second mobile device, thereby achieving a seamless transmission during handover.