Abstract: A head mounted device for a helmet includes a connection module, a flexible bracket, a power supply seat and a function module. While the flexible bracket is moved relative to the connection module, a position of the power supply seat relative to the helmet is adjusted. While the function module is moved relative to the power supply seat, an orientation of the function unit is adjusted.

Abstract: A head mounted device for a helmet includes a connection module, a flexible bracket, a power supply seat and a function module. While the flexible bracket is moved relative to the connection module, a position of the power supply seat relative to the helmet is adjusted. While the function module is moved relative to the power supply seat, an orientation of the function unit is adjusted.

Abstract: An electronic continuously variable transmission (ECVT) system applicable to a motorcycle includes a first speed sensor, second speed sensor, continuously variable transmission (CVT) and control unit. The control unit receives a user control signal and accordingly controls a speed-changing state of the CVT. While the motorcycle is operating in a manual-operation mode, the control unit predicts, according to the user control signal, a first speed signal sent from the first speed sensor, and a second speed signal sent from the second speed sensor, whether the next gear indicated by the shift request signal will cause the motorcycle to move unsteadily. If so, the control unit ignores the shift request signal and refuses to perform gear shifting. If not, the control unit sends at least a shift control signal to the CVT so that the CVT performs gear shifting.

Abstract: A carrier frequency offset (CFO) estimation device includes an echo cancelling unit, performing echo cancellation on an input signal to generate an echo-cancelled signal; and a CFO estimating unit, performing CFO estimation on the echo-cancelled signal to generate an estimated CFO.

Abstract: A roll-off parameter determining module disposed at a receiving terminal is provided. The receiving terminal receives first roll-off information of a first frame and second roll-off information of a second frame. The first frame is adjacent to the second frame. The module for determining a roll-off parameter includes: a register unit; a first determining unit, determining whether one of the first roll-off information and the second roll-off information includes a first data type, and generating a first roll-off parameter indicator; a second determining unit, determining whether one of the first roll-off information and the second roll-off information includes a second data type and outputting a second roll-off parameter indicator; and a look-up table (LUT) unit, looking up an LUT according to the first roll-off parameter indicator and a second roll-off parameter indicator to output a roll-off parameter.

Abstract: A phase recovery device includes a phase recovery module and a residual phase recovery module. The phase recovery module performs a first-stage phase recovery on a received signal to generate a first phase recovered signal. The residual phase recovery module performs a second-stage phase recovery on the first phase-recovered signal to generate a second phase recovered signal.

Abstract: A decoding circuit applied to a multimedia apparatus is provided. The decoding circuit is for decoding encoded data to generate system information, and includes multiple processing circuits and a determination circuit. The multiple processing circuits individually process the encoded data to generate multiple processed signals, and respectively correspond to multiple bit combinations of a part of the system information. The determination circuit determines the system information according to the multiple processed signals.

Abstract: A signal processing apparatus includes an oscillation circuit, an interpolation circuit, a matching filter, a high-pass filter and a timing recovery circuit. The oscillation circuit generates a clock signal. The interpolation circuit performs interpolation on an input signal according to the clock signal to generate an interpolation sample result. The matching filter demodulates the interpolation sample result to generate an output signal. The high-pass filter performs high-pass filtering on the interpolation sample result to generate a filtered result. The timing recovery circuit receives the filtered result, and performs timing recovery according to the filtered result.

Abstract: A method of fabricating a semiconductor device includes providing a first substrate comprising a first conductive element exposed at a surface of the first substrate; forming a patterned photoresist layer atop the first conductive element, whereby the patterned photoresist layer provides openings exposing the first conductive element; forming a first metal layer in the openings and directly atop the first conductive element; forming a first insulator layer over the first metal layer and the first substrate; and polishing the first metal layer and the first insulator layer, resulting in a first interface surface over the first substrate wherein the first interface surface includes part of the first metal layer and the first insulator layer.

Abstract: A signal receiving apparatus includes a phase recovery look, a phase estimation circuit, a phase noise detection circuit, and a bandwidth setting circuit. The phase recovery loop performs a phase recovery process on an input signal according to a bandwidth setting. The phase estimation circuit generates an estimated phase associated with the input signal. The phase noise detection circuit determines a phase noise amount according to the estimated phase. The bandwidth setting circuit calculates an average and a variance of the phase noise amounts, and adjusts the bandwidth setting of the phase recovery loop according to the average and the variance.

Abstract: A symbol rate estimation device includes: a power spectrum density (PSD) generating unit, estimating a power of an input signal to generate a PSD; a cut-off frequency index outputting unit, outputting a cut-off frequency index according to the power; and a symbol rate calculating unit, calculating a symbol rate of the input signal according to the cut-off frequency index.

Abstract: A packet output device includes: a first extracting unit, extracting a plurality of first packets and a plurality of first null packet values corresponding to a first channel; a first buffer, storing the first packets and the first null packet values; a second extracting unit, extracting a plurality of second packets and a plurality of second null packet values corresponding to a second channel; a second buffer, storing the second packets and the second null packet values; and a packet outputting unit, selecting, according to the first null packet values and the second null packet values, one of the first packets and the second packets as an output packet.

Abstract: A signal processing device for a receiver includes: a descrambler, descrambling an input signal to generate a descrambled signal; a phase recovery circuit, performing phase recovery according to the descrambled signal to generate a phase recovered signal; an equalization module, performing equalization according to the phase recovered signal to generate an equalized signal; and a decoder, decoding the equalized signal to obtain data included in the input signal.

Abstract: A symbol rate estimating device includes: a power spectrum density (PSD) estimating unit, estimating a PSD of an input signal; an index searching unit, searching for a cut-off frequency index in the PSD; an adjacent channel interference (ACI) detecting unit, detecting whether the input signal has ACI to generate a detection signal; a threshold adjusting unit, generating an adjusted index number threshold according to the detection signal; an index output unit, outputting the cut-off frequency index according to the adjusted index number threshold; and a symbol calculating unit, calculating a symbol rate of the input signal according to the cut-off frequency index.

Abstract: A symbol rate estimating device includes: a power spectrum density (PSD) estimating unit, estimating a PSD of an input signal; an index searching unit, searching for a cut-off frequency index in the PSD; an adjacent channel interference (ACI) detecting unit, detecting whether the input signal has ACI to generate a detection signal; a threshold adjusting unit, generating an adjusted index number threshold according to the detection signal; an index output unit, outputting the cut-off frequency index according to the adjusted index number threshold; and a symbol calculating unit, calculating a symbol rate of the input signal according to the cut-off frequency index.

Abstract: A phase error detection module includes: a constellation point selector, generating a constellation point selection signal according to a position and a radius of data of an input signal in a constellation diagram; a symbol estimator, selecting a part of all of a plurality of constellation points in the constellation diagram according to the constellation point selection signal, as a plurality of reference constellation points for calculating an estimated symbol corresponding to the data of the input signal, and a quantity of the reference constellation points is smaller than a quantity of all of the constellation points of the constellation diagram; and a phase estimator, calculating an estimated phase error of the input signal according to the data of the input signal and the estimated symbol.

Abstract: A roll-off parameter determining module disposed at a receiving terminal is provided. The receiving terminal receives first roll-off information of a first frame and second roll-off information of a second frame. The first frame is adjacent to the second frame. The module for determining a roll-off parameter includes: a register unit; a first determining unit, determining whether one of the first roll-off information and the second roll-off information includes a first data type, and generating a first roll-off parameter indicator; a second determining unit, determining whether one of the first roll-off information and the second roll-off information includes a second data type and outputting a second roll-off parameter indicator; and a look-up table (LUT) unit, looking up an LUT according to the first roll-off parameter indicator and a second roll-off parameter indicator to output a roll-off parameter.

Abstract: A signal processing device for a receiver includes: a descrambler, descrambling an input signal to generate a descrambled signal; a phase recovery circuit, performing phase recovery according to the descrambled signal to generate a phase recovered signal; an equalization module, performing equalization according to the phase recovered signal to generate an equalized signal; and a decoder, decoding the equalized signal to obtain data included in the input signal.

Abstract: An electronic variable suspension system applicable to a motorcycle includes a plurality of sensors, a suspension unit, an actuation unit, and a control unit. The sensors are disposed in a front portion and/or rear portion of the motorcycle to sense acceleration, displacement, or frequency so as to generate a plurality of sensing signals. The suspension unit includes front and rear suspension devices disposed in the motorcycle. The actuation unit includes front and rear actuation devices coupled to the front suspension device and the rear suspension device, respectively. The control unit generates at least a control signal according to the sensing signals. The actuation unit changes a damping value and/or a preload value of the front suspension device and/or the rear suspension device according to the at least a control signal.