Abstract: An audio system including an audio playback device that is configured to operatively connect to a plurality of digital audio sources for playback of content from the digital audio sources and each of the audio playback devices including a set of preset indicators. Each preset indicator in the set of preset indicators is configured to have assigned to it an entity associated with one of the plurality of digital audio sources. A first control device is wirelessly coupled to the audio playback device via a first wireless communication interface and includes a first level of control functionality while a second control device is wirelessly coupled to the audio playback device via a second wireless communication interface and includes a second level of control functionality that is greater than the first level of control functionality.

Abstract: A method for managing presets in an audio system is provided. The method includes syncing preset assignments on a plurality of audio playback devices such that preset assignments on any one of the audio playback devices correspond to respective preset assignments on each of the other audio playback devices, and, such that, if one of the preset assignments is changed on one of the audio playback devices, each of the other audio playback devices is automatically updated such that a corresponding change is made to a corresponding preset assignment on each of the other audio playback devices. Each of the preset assignments is an assignment of an entity associated with one of a plurality of digital audio sources to one of a plurality of preset indicators on the corresponding one of the audio playback devices.

Abstract: A method for managing presets in an audio system is provided. The method includes syncing preset assignments on a plurality of audio playback devices such that preset assignments on any one of the audio playback devices correspond to respective preset assignments on each of the other audio playback devices, and, such that, if one of the preset assignments is changed on one of the audio playback devices, each of the other audio playback devices is automatically updated such that a corresponding change is made to a corresponding preset assignment on each of the other audio playback devices. Each of the preset assignments is an assignment of an entity associated with one of a plurality of digital audio sources to one of a plurality of preset indicators on the corresponding one of the audio playback devices.

Abstract: A power supply switch apparatus includes a voltage decreasing circuit, a rectification circuit, a comparison circuit, and a control circuit. The voltage decreasing circuit receives a first alternating voltage output from a power supply and converts the first alternating voltage to a second alternating voltage. The rectification circuit receives the second alternating voltage and converts the second alternating voltage to a first direct voltage. The voltage regulating circuit receives the first direct voltage and converts the first direct voltage to a second direct voltage. The comparison circuit receives the second direct voltage, compares the second direct voltage with a reference voltage, and outputs a control signal. The control circuit receives the control signal and connects the power supply to different circuits according to the control signal.

Abstract: A dispensing device includes a cabinet, a door, a catching assembly, and a driving assembly. The cabinet includes a plurality of product boxes for receiving products. The door is pivotably mounted to the cabinet. The catching assembly includes a catch portion, a shipping portion, and a connecting portion connected between the catch portion and the shipping portion; and the connecting portion defining a goods channel communicating with the catch portion, the shipping portion, and the receiving opening. The connecting portion is scalable in a vertical direction. The catch portion is slidable relative to the cabinet. The driving assembly is capable of driving the catch portion to slide to a selected product box of the plurality of product boxes to catch a corresponding product.

Abstract: An automatic vending machine includes a cabinet, a supporting tray secured to the cabinet, a number of transporting devices, and a number of driving devices. Each transporting device comprises a securing member secured to the supporting tray and a transporting belt secured to the securing member. A number of separating panels is located on the transporting belt. An accommodating space is defined between every two adjacent separating panels. Each driving device comprises an engaging post engaged with the transporting belt. The transporting belt is moveable by the engaging post to dispense a product received in the accommodating space.

Abstract: An automatic vending machine includes a cabinet, a transporting device secured to the cabinet, a driving device, and a buffering device moveable received in the transporting device. The cabinet comprises a bottom panel and a first passageway located above the bottom panel. The bottom panel defines an opening. The buffering device is engaged with the driving device and comprises a hollow box. The hollow box comprises an entrance and an exit opposite to the entrance and located on the bottom panel. The entrance is aligned with the first passageway. The buffering device is moveable relative to the bottom panel by the driving device in a direction that is substantially parallel to the bottom panel, so that the hollow box is removed from the first passage to align with the opening, for the first product to move out of the bottom panel.

Abstract: Embodiments of the present invention disclose a touch bar and a mobile terminal apparatus. An interface module of the touch bar is connected to a touch panel; the interface module is connected in a matching manner to an interface on the mobile terminal; the touch panel is configured to sense a touch operation, generate a corresponding sensing signal, and transmit it to a processor in the mobile terminal by using the interface module, so that the processor controls the mobile terminal according to the sensing signal and content currently displayed on a display interface of the mobile terminal. Functions such as flicking a browser page up and down, turning pages of an ebook, and adjusting volume are implemented effectively; the operability is enhanced, and the user experience is prevented from being affected because the screen is blocked due to a tap operation or flick operation, improving the user experience effectively.

Abstract: A connector assembly includes a first connector and a second connector. The first connector includes a receiving case. A contacting piece and a movable contacting point are received in the first connector. The contacting piece includes a stationary contacting point. The second connector includes a contacting strip. The second connector matches the first connector, so the contacting strip contacts the contacting piece and moves the movable contacting point to electrically connect to the stationary contacting point.

Abstract: A goods transmission system in a vending machine includes a vending cabinet and a goods output mechanism. A supporting plate with a cutout blocks goods from falling in the cabinet. The supporting plate bears against an upwardly-inclined bottom plate which, with separating plates, carries a plurality of goods. A plurality of first resisting brackets and a plurality of second resisting brackets on an endless toothed belt extend from the drive member and the drive member drives the plurality of first resisting brackets and the second resisting brackets around. The action of the first resisting brackets and the second resisting brackets push the plurality of goods to move on the supporting plate until one of the plurality of goods is pushed to being above the cutout and the item drops from the cutout for the customer.

Abstract: An automatic vending machine includes a cabinet and a dispensing mechanism. The cabinet includes a top plate, two side plates, and a blocking plate. The two side plates are located on the top plate, and the blocking plate is located between the two side plates and parallel to the top plate and defines an opening. The dispensing mechanism is hanging on the top plate and comprises placing passages configured to receive products. One of the placing passages is staggered with the opening, and is rotatable relative to the blocking plate to align the opening, for the product to drop out of corresponding placing passage through the opening by gravity.

Abstract: A vending machine proofed against the pinching of a customer's fingers and with a security feature includes a cabinet, a receiving tray, a shielding board, and gear wheels. The cabinet includes a cabinet body and a door rotatably attached to the cabinet body. A number of merchandise shelves are located in the cabinet body. A through opening is defined in the door. The receiving tray is attached to an inside of the receiving tray and aligned with the through opening. The shielding board covers the through opening and is toothed to allow lowering for access by the customer to the bought merchandise when the internal drop of an item of merchandise is sensed and raising after the sensed removal of the item.

Abstract: A vending machine which dispenses goods without risk of damage to the goods or the customer includes a cabinet, a receiving tray and a merchandise catch basket moveably received in the receiving tray. The cabinet includes a cabinet body and a door rotatably attached to the cabinet body. A number of merchandise shelves are located in the cabinet body and bought goods slide rather than drop into the catch basket. A first opening is defined in the door, and the receiving tray is attached to an inside of the door and the customer is prevented from interfering with or taking the bought goods until they are at rest in the merchandise catch basket which is moved out to be accessible to the customer.

Abstract: Composition and method for surface-functionalized SPION-based agents. Such agents can provide highly pH-sensitive MRI contrast in tissue.

Abstract: A method for setting a mode of a server includes setting the mode of the server to the negative mode when the sever boots, monitoring the network to detect a DHCP offer packet provided by another DHCP server in the network, setting the mode of the server to the positive mode when no DHCP offer packet is provided by the another DHCP server in the network and analyzing the DHCP offer packet to determine the mode of the another DHCP server when the DHCP offer packet is provided by the another DHCP server in the network. The modes of the server can be set automatically according to a state of a network in which the server works.

Abstract: A test apparatus for welded thermocouple joints includes a signal selection circuit, a first comparison circuit, a second comparison circuit, a switch circuit, and an indication circuit. The signal selection circuit outputs either a first direct current (DC) voltage or a second DC voltage according to selection. The first comparison circuit compares the first DC voltage with a first reference voltage if a first DC voltage is received, to output a first control signal. The second comparison circuit compares the second DC voltage with a second reference voltage if a second DC voltage is received, to output a second control signal. The switch circuit receives either a first or a second control signal and outputs an indication accordingly. The indication circuit receives the indication, and warns the user that the joint has full integrity, that the joint has a short circuit, or that the joint is open circuit.

Abstract: An exemplary direct current (DC) voltage generating apparatus for generating stable DC voltages includes a voltage conversion circuit, a voltage control circuit, and a voltage regulating circuit. The voltage conversion circuit receives an alternating current (AC) voltage, and converts the AC voltage to a first DC voltage. The voltage control circuit receives the first DC voltage, and converts the first DC voltage to a second DC voltage and a control signal. The voltage regulating circuit receives the control signal, and regulates the second DC voltage to a stable second DC voltage at the voltage control circuit according to the control signal.

Abstract: An exemplary fan rotation speed control system for adjusting rotation speed of a fan includes a switch input module, a rotation speed control module, a signal collecting module, a decoding module, and a display module. The switch input module inputs a rotation speed signal in the rotation speed control module. The rotation speed control module outputs a first direct current (DC) voltage to provide power supply for the fan according to the rotation speed signal. The rotation speed control module adjusts values and directions of the first DC voltage according to the rotation speed signal. The signal collecting module collects rotation information of the fan. The rotation speed control module receives the rotation information and decodes the rotation information to rotation speed values by the decoding module which are displayed on the display module.

Abstract: A noise alarm system includes a sound gathering circuit, a amplifying circuit, a wave filtering circuit, a comparing circuit, and a alarm circuit. The sound gathering circuit gathers a sound signal. The sound signal includes a noise signal and other signals. The amplifying circuit amplifies the sound signal. The wave filtering circuit filters the other signals and output the noise signal. The comparing circuit has a reference voltage and outputs the noise signal to the alarm circuit after comparing the noise signal with the reference voltage. The alarm circuit switches on when the noise signal greater than the reference voltage.

Abstract: A fuel cell with multiple independent reaction regions comprises multiple fuel cell units. Each fuel cell unit comprises bipolar plates and a membrane electrode assembly located between the bipolar plates. The membrane electrode assembly comprises a proton exchange membrane and catalyst layers located at both sides of the proton exchange membrane, and the catalyst layers at least at one side of the proton exchange membrane are formed with multiple mutually independent catalyst sublayers. Different from the prior design concepts of striving to distribute reactants as uniformly as possible in the whole reaction area, the whole cell in this invention is divided into multiple independent reaction regions, and relevance of the reaction regions is eliminated. Therefore, by partitioning and reducing the amplitude of possible voltage difference, this invention is able to reduce electrochemical corrosion and maximize performance of each independent region and the whole fuel cell.