Abstract: An acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes a first anchor structure and a first flap. The first flap includes a first end and a second end. The first end is anchored by the first anchor structure, and the second end is configured to perform a first up-and-down movement to form a vent temporarily. The first flap partitions a space into a first volume to be connected to an ear canal and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are connected via the vent temporarily opened.

Abstract: An acoustic transducer is configured to perform an acoustic transformation. The acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes at least one anchor structure, a film structure and an actuator. The film structure is disposed within a first layer and anchored by the anchor structure disposed within a second layer. The actuator is disposed on the film structure, and the actuator is configured to actuate the film structure to form a vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal of a wearable sound device user and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are to be connected via the vent temporarily opened when the film structure is actuated.

Abstract: A crossover circuit, disposed within a sound producing device including a first sound producing cell driven by a first driving signal and a second sound producing cell driven by a second driving signal, includes a first filter receiving an input signal at an input terminal of the first filter, a first subtraction circuit, and a second filter coupled between the output terminal of the first filter and the second input terminal of the first subtraction circuit. A first input terminal of the first subtraction circuit is coupled to the input terminal of the first filter; a second input terminal of the first subtraction circuit is coupled to an output terminal of the first filter. The crossover circuit produces the first driving signal and the second driving signal according to a first output signal of the first subtraction circuit and a second output signal of the first filter respectively.

Abstract: A sound producing device includes a first sound producing cell, driven by a first driving signal and configured to produce a first acoustic sound on a first audio band, and a second sound producing cell, driven by a second driving signal and configured to produce a second acoustic sound on a second audio band different from the first audio band. A first membrane of the first sound producing cell and a second membrane of the second sound producing cell are Micro Electro Mechanical System fabricated membranes. The first audio band is upper bounded by a first maximum frequency; the second audio band is upper bounded by a second maximum frequency. A first resonance frequency of the first membrane is higher than the first maximum frequency of the first driving signal. A second resonance frequency of the second membrane is higher than the second maximum frequency of the second driving signal.

Abstract: A package structure includes a housing and a sound producing chip. The sound producing chip is disposed within the housing. The sound producing chip includes a membrane and an actuator. The membrane includes a coupling plate and a spring structure connected to the coupling plate. The actuator is configured to receive a driving signal to actuate the membrane. The spring structure is situated between the coupling plate and the actuator. The coupling plate is actuated to move by the actuator via the spring structure.

Abstract: A sound producing device includes a first sound producing cell, driven by a first driving signal and configured to produce a first acoustic sound on a first audio band, and a second sound producing cell, driven by a second driving signal and configured to produce a second acoustic sound on a second audio band different from the first audio band. A first membrane of the first sound producing cell and a second membrane of the second sound producing cell are Micro Electro Mechanical System fabricated membranes. The first audio band is upper bounded by a first maximum frequency; the second audio band is upper bounded by a second maximum frequency. A first resonance frequency of the first membrane is higher than the first maximum frequency of the first driving signal. A second resonance frequency of the second membrane is higher than the second maximum frequency of the second driving signal.

Abstract: A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.

Abstract: A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.

Abstract: A method of manufacturing a semiconductor structure includes providing a first substrate, disposing and patterning a plate over the first substrate, disposing a first sacrificial oxide layer over the plate, forming a plurality of recesses over a surface of the first sacrificial oxide layer, disposing and patterning a membrane over the first sacrificial oxide layer, disposing a second sacrificial oxide layer to surround the membrane and cover the first sacrificial oxide layer; and forming a plurality of conductive plugs passing through the plate or the membrane, wherein the plate includes a semiconductive member and a tensile member, and the semiconductive member is disposed within the tensile member.

Abstract: A sound producing apparatus is provided. The sound producing apparatus includes a driving circuit, configured to generate a driving signal according to an input audio signal; and a sound producing device; wherein the sound producing device is driven by the driving signal, such that the sound producing device produces a plurality of air pulses at an air pulse rate, the air pulse rate is higher than a maximum human audible frequency; wherein the plurality of air pulses produces a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a zero sound pressure level; wherein the driving signal driving the sound producing device to produce the plurality of air pulses, is unipolar with respect to a first voltage.

Abstract: A semiconductor structure includes a first device and a second device. The first device includes a plate including a plurality of apertures; a membrane disposed opposite to the plate and including a plurality of corrugations, and a conductive plug extending through the plate and the membrane. The second device includes a substrate and a bond pad disposed over the substrate, wherein the conductive plug is bonded with the bond pad to integrate the first device with the second device, and the plate includes a semiconductive member and a tensile member, and the semiconductive member is disposed within the tensile member.

Abstract: An air pulse generating element is disclosed. The air pulse generating element includes a front faceplate; a back faceplate; a front supporting element; a back supporting element; a folded membrane, configured to form a front chamber and a back chamber, and comprising a plurality of membrane units; wherein the plurality of membrane units are parallel and sequentially connected and an end of the folded membrane is connected to the back faceplate via the back supporting element and another end of the folded membrane is connected to the front faceplate via the front supporting element; and a plurality of valves controlling a plurality of air flow channels between the front chamber toward either a front space or a back space; wherein the plurality of membrane units are configured to perform horizontal deformation to squeeze air in and out of the front or back chamber with operations of the plurality of valves.

Abstract: One or more embodiments of the disclosure include a digital multi-group messaging system that manages digital messages across a plurality of social networking groups. In particular, in one or more embodiments, the digital multi-group messaging system detects a digital message and selects a set of social networking groups to suggest to the user. Upon user selection of suggested social networking groups, the digital multi-group messaging system can post the digital message to the selected social networking groups. Moreover, the digital multi-group messaging system can monitor user interaction with the posted digital message in relation to the selected social networking groups and present member interest information to a user, enabling the user to review and manage the digital message across social networking groups.

Abstract: An air pulse generating element is disclosed. The air pulse generating element includes a front faceplate; a back faceplate; a front supporting element; a back supporting element; a folded membrane, configured to form a front chamber and a back chamber, and comprising a plurality of membrane units; wherein the plurality of membrane units are parallel and sequentially connected and an end of the folded membrane is connected to the back faceplate via the back supporting element and another end of the folded membrane is connected to the front faceplate via the front supporting element; and a plurality of valves controlling a plurality of air flow channels between the front chamber toward either a front space or a back space; wherein the plurality of membrane units are configured to perform horizontal deformation to squeeze air in and out of the front or back chamber with operations of the plurality of valves.

Abstract: One or more embodiments of the disclosure include a digital multi-group messaging system that manages digital messages across a plurality of social networking groups. In particular, in one or more embodiments, the digital multi-group messaging system detects a digital message and selects a set of social networking groups to suggest to the user. Upon user selection of suggested social networking groups, the digital multi-group messaging system can post the digital message to the selected social networking groups. Moreover, the digital multi-group messaging system can monitor user interaction with the posted digital message in relation to the selected social networking groups and present member interest information to a user, enabling the user to review and manage the digital message across social networking groups.

Abstract: A lamp tube and a lamp fixture with sensing capability are disclosed. The lamp tube with sensing capability includes a lamp tube body, and the lamp tube body includes a power converting unit, an LED strip and a sensing unit. The power converting unit is for receiving AC power and outputting DC power for driving the LED strip and the sensing unit. The sensing unit will timely output a fire alarm signal to notify the firemen and the people nearby when a fire occurs. The shape of the lamp tube with sensing capability is the same as a normal lamp tube, so both of them can be installed in the same lamp fixture. One normal lamp tube is replaced by the lamp tube with sensing capability to include a fire sensing function. The safety is enhanced and the installation is convenient.

Abstract: A semiconductor structure includes a first device and a second device. The first device includes a plate including a plurality of apertures; a membrane disposed opposite to the plate and including a plurality of corrugations, and a conductive plug extending through the plate and the membrane. The second device includes a substrate and a bond pad disposed over the substrate, wherein the conductive plug is bonded with the bond pad to integrate the first device with the second device, and the plate includes a semiconductive member and a tensile member, and the semiconductive member is disposed within the tensile member.

Abstract: A lamp tube and a lamp fixture with sensing capability are disclosed. The lamp tube with sensing capability includes a lamp tube body, and the lamp tube body includes a power converting unit, an LED strip and a sensing unit. The power converting unit is for receiving AC power and outputting DC power for driving the LED strip and the sensing unit. The sensing unit will timely output a fire alarm signal to notify the firemen and the people nearby when a fire occurs. The shape of the lamp tube with sensing capability is the same as a normal lamp tube, so both of them can be installed in the same lamp fixture. One normal lamp tube is replaced by the lamp tube with sensing capability to include a fire sensing function. The safety is enhanced and the installation is convenient.

Abstract: A power switch control system with area-based switch grouping utilizes original compartments in a building as groups to be controlled, and includes multiple intelligent switches respectively installed in multiple switch wiring boxes originally and selectively located in the compartments. Each intelligent switch is electrically connected to multiple pieces of power-consuming equipment through a corresponding switch wiring box, and receives switch control commands transmitted from an electronic device to turn on or off the multiple pieces of power-consuming equipment connected to the switch wiring box, so as to group and remotely control power-consuming equipment in the compartments. As no rewiring is needed, the power switch control system can effectively reduce the cost for operation.

Abstract: A power restriction management system includes a network switching device with a preinstalled power restriction sequence value and a managing server. The network switching device is connected to a power source to acquire power and at least one electronic device to perform power restriction in the electronic device. The managing server is connected to the network switching device via Internet and controls the network switch device to perform power restriction in the corresponding electronic device or not according to the power restriction sequence value of the network switching device. The managing server controls the network switching device with the specific power restriction sequence value to perform power restriction in the corresponding electronic device. It is not to perform power restriction in all electronic devices without differentiation and the goal of the power restriction is achieved and impact and loss to the users can be reduced.