Abstract: A keyboard device includes a substrate, a keycap, a first connection member, and a first elastic arm structure. The substrate has a top surface, and the top surface has an assembling region. The keycap is disposed above the assembling region, and the keycap has a bottom surface facing the assembling region. The first connection member is connected between the keycap and the assembling region, the first connection member includes a first assembly side and a second assembly side opposite to the first assembly side, the first assembly side is pivotally connected to the bottom surface of the keycap, and the second assembly side is pivotally connected to the substrate. The first elastic arm structure includes a connection end and a free end opposite to the connection end, the connection end is connected to the first assembly side, and the free end abuts against the bottom surface of the keycap.

Abstract: A device for measuring the complex dielectric permittivity of a material under test (MUT) includes an electromagnetic wave generating/receiving unit, a transmission line, a self-referencing waveguide section and a sensing waveguide section. The electromagnetic wave generating/receiving unit is configured to generate an electromagnetic wave signal. The transmission line has a first characteristic impedance and transmits the electromagnetic wave signal. The self-referencing waveguide section has a second characteristic impedance, and includes a front end and a back end, wherein a first reflection signal is sent from the front end. The sensing waveguide section is connected to the back end, and configured to cooperate with the back end to send out remaining subsequent reflection signals, wherein the electromagnetic wave generating/receiving unit receives the first reflection signal and the remaining subsequent reflection signals to measure the complex dielectric permittivity of the MUT.

Abstract: A device for measuring the complex dielectric permittivity of a material under test (MUT) includes an electromagnetic wave generating/receiving unit, a transmission line, a self-referencing waveguide section and a sensing waveguide section. The electromagnetic wave generating/receiving unit is configured to generate an electromagnetic wave signal. The transmission line has a first characteristic impedance and transmits the electromagnetic wave signal. The self-referencing waveguide section has a second characteristic impedance, and includes a front end and a back end, wherein a first reflection signal is sent from the front end. The sensing waveguide section is connected to the back end, and configured to cooperate with the back end to send out remaining subsequent reflection signals, wherein the electromagnetic wave generating/receiving unit receives the first reflection signal and the remaining subsequent reflection signals to measure the complex dielectric permittivity of the MUT.

Abstract: A key includes a substrate, a keycap, a connection component, and protruding structures. The connection component includes a first connection member and a second connection member, and the first connection member and the second connection member are between the substrate and the keycap. The protruding structures are disposed on the upper surface of the first connection member and disposed on the upper surface of the second connection member. When the keycap is pressed to a pressed position, the protruding structures on the first connection member and on the second connection member abut against the bottom surface of the keycap, so that a gap is formed between the keycap and the connection component. Therefore, the bottom surface of the keycap does not contact the upper surface of the first connection member and the upper surface of the second connection member so as to prevent from generating keystroke noises.

Abstract: A key includes a substrate, a keycap, a connection component, and protruding structures. The connection component includes a first connection member and a second connection member, and the first connection member and the second connection member are between the substrate and the keycap. The protruding structures are disposed on the upper surface of the first connection member and disposed on the upper surface of the second connection member. When the keycap is pressed to a pressed position, the protruding structures on the first connection member and on the second connection member abut against the bottom surface of the keycap, so that a gap is formed between the keycap and the connection component. Therefore, the bottom surface of the keycap does not contact the upper surface of the first connection member and the upper surface of the second connection member so as to prevent from generating keystroke noises.

Abstract: A keyboard includes a base plate, a keycap, and at least one balance assembly. The base plate has a plurality of connecting structures. The keycap is above the base plate. The balance assembly includes a balance bar and two silencing members. The balance bar is between the base plate and the keycap and is engaged with the keycap. The silencing members are connected to the balance bar and engaged with the connecting structures. The balance assembly is configured to guide the keycap to move relative to the base plate. Hardnesses of the base plate and the balance bar are greater than a hardness of the silencing members.

Abstract: An earpiece of a headset uses a first signal and a second signal received from an in-ear microphone and an outside microphone, respectively, to enhance microphone signals. The in-ear microphone is positioned at a proximal side of the earpiece with respect to an ear canal of a user, and the outside microphone is positioned at a distal side of the earpiece with respect to the ear canal. A processing unit includes a filter, which digitally filters out in-ear noise from the first signal using the second signal as a reference to produce a de-noised signal to thereby enhance the microphone signals.

Abstract: A portable device and a method for entering a power-saving mode are provided. Audio stream is generated by an audio player, and an audio signal is generated according to the audio stream and then transmitted to an earphone via a cable by a digital-analog converter. At least one electrical characteristic on the cable is sensed to generate at least one sensing signal. The at least one sensing signal is sampled to generate at least one data signal. Whether the earphone is inserted into an ear canal is determined according to the at least one data signal. For determining whether the earphone is inserted into the ear canal, an impedance frequency response related to the earphone is obtained according to the at least one data signal, and whether the earphone is inserted into the ear canal is determined according to a characteristic of peaks of the impedance frequency response.

Abstract: A timing control method for a user equipment (UE) in a wireless communications system, including: obtaining a starting time of a data transmission period from information of a data transmission timing received from a base station of a wireless network; obtaining a starting time of a current data processing period; and adjusting a data processing timing so that the adjusted starting time of the current data processing period is ahead of the starting time of the data transmission period by a predetermined time.

Abstract: A portable device and a method for entering a power-saving mode are provided. An audio signal is transmitted to an earphone via a cable. At least one electrical characteristic on the cable is sensed to generate at least one sensing signal. The at least one sensing signal is sampled to generate at least one data signal. Whether the earphone is in listening position is determined according to the at least one data signal. When it is determined that the earphone is not in listening position, the portable device enters a power-saving mode.

Abstract: A method for Cellular Text Telephone Modem (CTM) signal transmission includes: converting a CTM transmitter signal carried in a first sampling rate to generate a transmission signal carried in a second sampling rate, wherein the second sampling rate is different from the first sampling rate; and outputting the transmission signal carried in the second sampling rate to a CTM receiver.

Abstract: An earpiece of a headset uses a first signal and a second signal received from an in-ear microphone and an outside microphone, respectively, to enhance microphone signals. The in-ear microphone is positioned at a proximal side of the earpiece with respect to an ear canal of a user, and the outside microphone is positioned at a distal side of the earpiece with respect to the ear canal. A processing unit includes a filter, which digitally filters out in-ear noise from the first signal using the second signal as a reference to produce a de-noised signal to thereby enhance the microphone signals.

Abstract: A method for forming a semiconductor device structure is provided. The method includes: forming a plurality of trenches in the substrate; forming a gate dielectric layer lining the trenches; filling the trenches with a gate material; etching back the gate material to expose an upper portion of the trenches; forming a first dielectric layer to refill the upper portion of the trenches, and to cover a substrate surface between the trenches; performing a first chemical mechanical planarization process to partially remove the first dielectric layer until the substrate surface between the trenches is exposed. The method also includes using the first dielectric layer in the upper portion of the trenches as an etching mask, etching the substrate through the exposed substrate surface to form a self-aligned contact opening between the trenches.

Abstract: A portable device and a method for entering a power-saving mode are provided. An audio signal is transmitted to an earphone via a cable. At least one electrical characteristic on the cable is sensed to generate at least one sensing signal. The at least one sensing signal is sampled to generate at least one data signal. Whether the earphone is in listening position is determined according to the at least one data signal. When it is determined that the earphone is not in listening position, the portable device enters a power-saving mode.

Abstract: A camera tuning circuit has a first storage space, a second storage space and a controller. The first storage space stores a first reference camera correction setting for a reference camera module under a first color temperature. The second storage space stores a second reference camera correction setting for the reference camera module under a second color temperature, wherein the second color temperature is different from the first color temperature. The controller receives a default camera correction setting of a target camera module, the first reference camera correction setting, and the second reference camera correction setting, and generates a tuned camera correction setting for the target camera module according to the default camera correction setting, the first reference camera correction setting, and the second reference camera correction setting.

Abstract: An active noise control system and associated auto-selection method for modeling a secondary path for the active noise control system are provided. The method includes the steps of: receiving a reference signal; filtering the reference signal with a secondary-path estimation filter to obtain a filtered reference signal, wherein the secondary path estimation filter is determined from a plurality of candidate secondary-path estimation filters; filtering the reference signal with an adaptive filter to provide a compensation signal; sensing a residual noise signal at a listening position of the active noise control system; and adapting filter coefficients of the adaptive filter according to the residual noise signal and the filtered reference signal.

Abstract: An active noise control system and associated auto-selection method for modeling a secondary path for the active noise control system are provided. The method includes the steps of: receiving a reference signal; filtering the reference signal with a secondary-path estimation filter to obtain a filtered reference signal, wherein the secondary path estimation filter is determined from a plurality of candidate secondary-path estimation filters; filtering the reference signal with an adaptive filter to provide a compensation signal; sensing a residual noise signal at a listening position of the active noise control system; and adapting filter coefficients of the adaptive filter according to the residual noise signal and the filtered reference signal.

Abstract: A processing system has a keyword recognition sub-system and a direct memory access (DMA) controller. The keyword recognition sub-system has a processor and a local memory device. The processor performs at least keyword recognition. The local memory device is accessible to the processor and is arranged to buffer at least data needed by the keyword recognition. The DMA controller interfaces between the local memory device of the keyword recognition sub-system and an external memory device, and is arranged to perform DMA data transaction between the local memory device and the external memory device.

Abstract: A method for Cellular Text Telephone Modem (CTM) signal transmission includes: converting a CTM transmitter signal carried in a first sampling rate to generate a transmission signal carried in a second sampling rate, wherein the second sampling rate is different from the first sampling rate; and outputting the transmission signal carried in the second sampling rate to a CTM receiver.

Abstract: A timing control method for a user equipment (UE) in a wireless communications system, including: obtaining a starting time of a data transmission period from information of a data transmission timing received from a base station of a wireless network; obtaining a starting time of a current data processing period; and adjusting a data processing timing so that the adjusted starting time of the current data processing period is ahead of the starting time of the data transmission period by a predetermined time.