Abstract: An IoT water purification system includes a water purification device and a cloud management device. The water purification device includes a filter element, a water tank, a water quantity sensing circuit, a filter element sensing circuit, and a water purification side wireless transmission circuit. The water quantity sensing circuit measures a current storage quantity of the drinking water to generate respective water quantity information. The filter element sensing circuit measures a water quality of the tap water to generate water quality information. The cloud management device includes a cloud wireless transmission circuit and a cloud processing circuit.

Abstract: An end fitting for an exhaust pipe includes a cylindrical body having an upper opening and a lower opening. An inclined upper board is mounted in the cylindrical body. An upper passage is defined between a side of the upper board and an inner periphery of the cylindrical body. A first set of drain holes is defined in the lowest portion of the upper board. An inclined lower board is mounted in the cylindrical body and is located below the upper board. A lower passage is defined between a side of the lower board and the inner periphery of the cylindrical body. The lowest portion of the lower board is connected to the cylindrical body. The cylindrical body includes a cylindrical wall having a second set of drain holes. A ledge extends from the inner periphery of the cylindrical body and is located below the lower board.

Abstract: An IoT water purification system includes a water purification device and a cloud management device. The water purification device includes a filter element, a water tank, a water quantity sensing circuit, a filter element sensing circuit, and a water purification side wireless transmission circuit. The water quantity sensing circuit measures a current storage quantity of the drinking water to generate respective water quantity information. The filter element sensing circuit measures a water quality of the tap water to generate water quality information. The cloud management device includes a cloud wireless transmission circuit and a cloud processing circuit.

Abstract: A connecting device for a chainring of a bicycle is disclosed, including a connecting disc, a shaft, and a crank. The connecting disc is adapted to be engaged with a chainring, and has an axial bore, a bulging portion bulging from a central portion of the connecting disc, and a surrounding portion, which is flat, and surrounds an outer periphery of the bulging portion. The shaft passes through the axial bore to be fixedly engaged with the connecting disc. The shaft has a connecting end. The crank has a connecting end engaged with the connecting end of the shaft, and a bearing end adapted to bear an external force to make the crank rotate around the shaft. Whereby, the amount of materials used to make the connecting device is decreased. At the same time, the manufacturing cost, the size, and the weight of the connecting device are all reduced.

Abstract: A building heat dissipation hood structure includes a ventilation through-hole (11) disposed in a top portion (1) of a building. A heat dissipation hood (2) is mounted on the top portion (1) of the building and is located corresponding to the ventilation through-hole (11). A fan (3) is mounted in the heat dissipation hood (2). In a method for producing the building heat dissipation hood structure, a periphery of the fan (3) is firstly superimposed on a top side of a hole edge of the ventilation through-hole (11) from the top portion (1) of the building. A leakage preventing mechanism (4) is disposed in an intersection area between the fan (3) and the hole edge of the ventilation through-hole (11). The heat dissipation hood (2) is then installed in the top portion (1) of the building.

Abstract: Methods for forming a group III-V device structure are provided. A method includes forming a first through via structure penetrating through group III-V compound layers over a front surface of a semiconductor substrate. The method also includes thinning the semiconductor substrate from a back surface of the semiconductor substrate. The method further includes etching the semiconductor substrate from the back surface to form a via hole substantially aligned with the first through via structure. In addition, the method includes etching the semiconductor substrate from the back surface to form a recess extending from a bottom surface of the recess towards the first through via structure. The first through via structure is exposed by the via hole and the recess. The method also includes forming a conductive layer in the via hole and the recess to form a second through via structure connected to the first through via structure.

Abstract: A semiconductor device includes a substrate, overlaid by a III-V compound semiconductor layer. The substrate includes a circuit region and a seal ring region, wherein the seal ring region surrounds the circuit region. A seal ring structure is disposed in the seal ring region, wherein the seal ring structure includes a first via structure, extending through part of the substrate and the III-V compound semiconductor layer, that surrounds the circuit region.

Abstract: Methods for forming a group III-V device structure are provided. A method includes forming a first through via structure penetrating through group III-V compound layers over a front surface of a semiconductor substrate. The method also includes thinning the semiconductor substrate from a back surface of the semiconductor substrate. The method further includes etching the semiconductor substrate from the back surface to form a via hole substantially aligned with the first through via structure. In addition, the method includes etching the semiconductor substrate from the back surface to form a recess extending from a bottom surface of the recess towards the first through via structure. The first through via structure is exposed by the via hole and the recess. The method also includes forming a conductive layer in the via hole and the recess to form a second through via structure connected to the first through via structure.

Abstract: A group III-V device structure is provided. The group III-V device structure includes a channel layer formed over a substrate and an active layer formed over the channel layer. The group III-V device structure also includes a gate structure formed over the active layer and a source electrode and a drain electrode formed over the active layer. The source electrode and the drain electrode are formed on opposite sides of the gate structure. The group III-V device structure further includes a through via structure formed through the channel layer, the active layer and a portion of the substrate, and the through via structure is electrically connected to the source electrode or the drain electrode.

Abstract: A hydraulic disc brake device to be mounted on a bicycle is disclosed, wherein the device includes a caliper main body, two brake linings, two membranes, and two rings. The caliper main body has a channel and two oil chambers respectively formed on two sides of the channel. Each of the oil chambers has an opening facing the channel. A part of a brake disc of the bicycle is located in the channel. The brake linings are provided in the channel, and are on two sides of the brake disc. The membranes are assembled to the caliper main body to seal the openings. By injecting hydraulic oil into the oil chambers, the membranes are pushed by the hydraulic oil to push against the brake linings, making the brake linings approach each other to clamp the brake disc, to thereby stop the bicycle.

Abstract: A connecting device for a chainring of a bicycle is disclosed, including a connecting disc, a shaft, and a crank. The connecting disc is adapted to be engaged with a chainring, and has an axial bore, a bulging portion bulging from a central portion of the connecting disc, and a surrounding portion, which is flat, and surrounds an outer periphery of the bulging portion. The shaft passes through the axial bore to be fixedly engaged with the connecting disc. The shaft has a connecting end. The crank has a connecting end engaged with the connecting end of the shaft, and a bearing end adapted to bear an external force to make the crank rotate around the shaft. Whereby, the amount of materials used to make the connecting device is decreased. At the same time, the manufacturing cost, the size, and the weight of the connecting device are all reduced.

Abstract: A power source equipment for Power over Ethernet system provides an adjustment mechanism for the maximum allowable power of communication port connected to the power source, whereby when a device requests to join as a powered device but a maximum allowable power of a corresponding class is greater than the difference of the total supplied power and the sum of maximum allowable power designated to the then connected powered devices, the maximum allowable power of the respective powered devices may be adjusted, to generate sufficient allowable power for the requesting device. A power supplying method using the adjustment mechanism is also disclosed.

Abstract: A power source equipment for Power over Ethernet system provides an adjustment mechanism for the maximum allowable power of communication port connected to the power source, whereby when a device requests to join as a powered device but a maximum allowable power of a corresponding class is greater than the difference of the total supplied power and the sum of maximum allowable power designated to the then connected powered devices, the maximum allowable power of the respective powered devices may be adjusted, to generate sufficient allowable power for the requesting device. A power supplying method using the adjustment mechanism is also disclosed.

Abstract: A dual-structure brake disk assembly includes a first disk, a second disk and a hollow area located between the first and second disks. The brake disk has high strength, high efficiency for dissipating heat and lightweight. The brake disk is manufactured quickly and has high production efficiency.

Abstract: The present invention provides a single-tap search method for a mobile phone or portable device having an ambiguity keyboard for searching a remote sever. Via a database on the remote sever, the present invention can provide more keywords for a given ambiguity string. Additionally, when the keywords are found on the database on the remote sever the present invention further searches the database for information related to the keywords.

Abstract: A dual-structure brake disk assembly includes a first disk, a second disk and a hollow area located between the first and second disks. The brake disk has high strength, high efficiency for dissipating heat and lightweight. The brake disk is manufactured quickly and has high production efficiency.

Abstract: A method for searching a remote server using a portable device including an ambiguity keyboard, the ambiguity keyboard having a plurality of keys where at least one key corresponds to more than one symbol, includes: according to a single-tap input of at least one key of the ambiguity keyboard, generating an ambiguity string including at least a symbol corresponding to the key; sending the ambiguity string to the remote server; utilizing a database in the remote server to match the ambiguity string to an existing keyword in the database; and sending the existing keyword back to the portable device.

Abstract: An operation method of a user interface suitable for performing an input operation on an input panel displayed on a display is provided. The input panel comprises a plurality of keys. The operation method includes deciding an input command through one of the keys of the input panel. Then, a vision feedback represented by an image is displayed within a display area of a display.

Abstract: Switch methods and systems for input interfaces for use in an electronic device are provided. First, a direction of the electronic device is detected. Then, a first input interface is determined among a plurality of input interfaces according to the direction of the electronic device, and the first input interface is displayed in a display unit of the electronic device.

Abstract: The present invention discloses a method for processing a data stream by utilizing plural processors, including the central processing unit and the compression processor of at least one MPEG card. With the similar concept of the distributed system, the present invention could make best use of each processor in the computer and therefore greatly reduce the rendering time. The steps of the method comprises: dividing the data stream into plural segments; checking states of a central processing unit and at least one compressing processor; dispatching the segments to either the central processing unit or the compressing processor according to the statuses, wherein the central processing unit or the compressing processor would process the segments to generate compressed segments; and cascading the compressed segments to generate a compressed data stream.