Abstract: A semiconductor device includes a substrate having a logic region and a magnetoresistive random access memory (MRAM) region, a MTJ on the MRAM region, a metal interconnection on the MTJ, and a blocking layer on the metal interconnection. Preferably, the blocking layer includes a stripe pattern according to a top view and the blocking layer could include metal or a dielectric layer.

Abstract: An estimation device is provided. The distance estimation device includes a calibration circuit and a distance estimation circuit. The calibration circuit may receive channel state information (CSI), and obtain signal-path power and noise-path power according to the CSI, and perform calculation to divide the signal-path power by the noise-path power to obtain a signal-power calibration value. The distance estimation circuit is coupled to the calibration circuit. The distance estimation circuit receives a received signal strength indication (RSSI) and the signal-power calibration value, and obtains a path-loss exponent according to the RSSI and the signal-power calibration value, and obtains a distance-estimation value according to the signal-power calibration value and the path-loss exponent.

Abstract: An estimation device is provided. The distance estimation device includes a calibration circuit and a distance estimation circuit. The calibration circuit may receive channel state information (CSI), and obtain signal-path power and noise-path power according to the CSI, and perform calculation to divide the signal-path power by the noise-path power to obtain a signal-power calibration value. The distance estimation circuit is coupled to the calibration circuit. The distance estimation circuit receives a received signal strength indication (RSSI) and the signal-power calibration value, and obtains a path-loss exponent according to the RSSI and the signal-power calibration value, and obtains a distance-estimation value according to the signal-power calibration value and the path-loss exponent.

Abstract: A compliant mechanism includes a first unit, a second unit, at least one elastic member and a driver for driving the elastic member to rotate through a predetermined angle. The first and second units collectively define a passage about which the second unit is rotatable relative to the first unit. The elastic member has a plate and first and second shafts which are coaxially connected to two opposite ends of the plate respectively and rotatably connected with the first and second units respectively. The elastic member is rotatable about a co-axis of the first and second shafts and elastically deformable when the second unit rotates relative to the first unit. The elastic member can change its resistance to the rotation of the second unit by rotating; therefore the compliant mechanism has a great safety upon receiving load and is widely applicable in many fields.

Abstract: A key cup adjustment device for a wind instrument has a hinge rod and a key cup assembly. The key cup assembly is mounted on the hinge rod and has at least one solid arm, a key cup, at least one adjusting arm and at least one abutting unit. The at least one solid arm is mounted securely between the hinge rod and the key cup. The at least one adjusting arm is mounted securely on the at least one solid arm and corresponds to the key cup. The at least one abutting unit is connected to the at least one adjusting arm and can be adjusted to abut the key cup. Therefore, the key cup can close a corresponding tone hole tightly and pitches produced by wind instruments are accurate.

Abstract: A communication apparatus is provided. A processor receives a measurement control message carrying information about a filtering coefficient via a radio transceiver module, periodically measures signal quality of at least one cell to obtain a plurality of measurement results, periodically filters the measurement results according to a first measurement period to obtain a plurality of filtered results, and determines whether to transmit a measurement report to a system controller in the wireless communication network according to the filtered results. The filtering coefficient is assigned by the system controller to filter the measurement results according to a second measurement period.

Abstract: A mobile device capable of scaling input data and a method thereof. The mobile device comprises a data segmentation module, a quality measure module, and a scaling module. The data segmentation module divides the input data into a plurality of subdata. The quality measure module, coupled to the data segmentation module, calculates signal quality of each subdata. The scaling module, coupled to the quality measure module, scales each subdata according to corresponding signal quality.

Abstract: A dummy burst detection method. The method begins with generating a dummy burst nominal power ?DB2 of a received burst and a normal burst nominal power ?NB2 of the received burst, wherein the dummy burst nominal power ?DB2 is generated based on the hypotheses that the received burst is a dummy burst, and the normal burst nominal power ?NB2 is formed based on the hypotheses that the received burst is a normal burst. A likelihood of the received burst is determined according to the dummy burst nominal power ?DB2, the normal burst nominal power ?NB2, and the noise power of the received burst.

Abstract: A compliant mechanism includes a first unit, a second unit, at least one elastic member and a driver for driving the elastic member to rotate through a predetermined angle. The first and second units collectively define a passage about which the second unit is rotatable relative to the first unit. The elastic member has a plate and first and second shafts which are coaxially connected to two opposite ends of the plate respectively and rotatably connected with the first and second units respectively. The elastic member is rotatable about a co-axis of the first and second shafts and elastically deformable when the second unit rotates relative to the first unit. The elastic member can change its resistance to the rotation of the second unit by rotating; therefore the compliant mechanism has a great safety upon receiving load and is widely applicable in many fields.

Abstract: A key cup adjustment device for a wind instrument has a hinge rod and a key cup assembly. The key cup assembly is mounted on the hinge rod and has at least one solid arm, a key cup, at least one adjusting arm and at least one abutting unit. The at least one solid arm is mounted securely between the hinge rod and the key cup. The at least one adjusting arm is mounted securely on the at least one solid arm and corresponds to the key cup. The at least one abutting unit is connected to the at least one adjusting arm and can be adjusted to abut the key cup. Therefore, the key cup can close a corresponding tone hole tightly and pitches produced by wind instruments are accurate.

Abstract: A clarinet coupling structure comprises at least one first hollow tube and at least one second hollow tube that are fastenable by swiveling. The first hollow tube includes a first coupling portion and a plurality of first bumps located on the surface of the first coupling portion. The first bumps are spaced by a plurality of first gaps formed between them. The second hollow tube includes a second coupling portion and a plurality of second bumps located on the surface of the second coupling portion. The second bumps are spaced by a plurality of second gaps formed between them to receive the first bumps. The second gaps also have a plurality of lateral movement sections to allow the first bumps to slide in and latch inside. Through such a structure, various elements of wind instruments can be assembled and disassembled quickly and damage can also be prevented.

Abstract: A synchronization circuit includes a correlator, an energy calculator, a post-processing unit, and a decision device. The correlator correlates a received sequence r(t) with a local sequence c(i) to obtain a correlation result h(t). The energy calculator calculates an energy function of the correlation result h(t), and filters the energy function of the correlation result by a channel impulse response wc(l) to obtain a filtered energy function e(t), where l is the index of the channel impulse response. The post-processing unit applies weighting function wa(t) to the filtered energy e(t) to obtain a weighted energy function e?(t), wherein the weighting function wa(t) weights a central portion of the filtered energy function e(t). The decision device selects a maximum energy value from the weighted energy function e?(t), and the time index t with maximum energy value is the time shift of the received sequence and the local sequence.

Abstract: A mobile communication device and a data reception method implemented thereby are provided. An antenna receives a signal, and an inner receiver demodulates the received signal to generate an equalizer output. A channel decoder is coupled to the inner receiver, decoding the equalizer output to generate a data sequence. A quality estimator estimates signal quality of the received signal to generate a quality value. An error checker selectively performs cyclic redundancy code (CRC) check or CRC correction on the data sequence according to the quality value.

Abstract: A communication apparatus is provided. A processor receives a measurement control message carrying information about a filtering coefficient via a radio transceiver module, periodically measures signal quality of at least one cell to obtain a plurality of measurement results, periodically filters the measurement results according to a first measurement period to obtain a plurality of filtered results, and determines whether to transmit a measurement report to a system controller in the wireless communication network according to the filtered results. The filtering coefficient is assigned by the system controller to filter the measurement results according to a second measurement period.

Abstract: The present invention discloses an octave-key transfer-bar protection device, which is installed on a saxophone to protect an octave-key transfer-bar on the saxophone, and which comprises a structure body, and a collision-protection bar arranged on the structure body and encircling an accommodation space. The structure body is fixed to the external surface of the saxophone. The octave-key transfer-bar is arranged inside the accommodation space and encircled by the collision-protection bar. The collision-protection bar can protect the octave-key transfer-bar from being deformed by collision. Thus, the performer can correctly lower or raise the gamut via the octave-key transfer-bar.

Abstract: A method of frequency estimation includes (a) receiving frequency correction channel (FCCH) data samples; (b) calculating an estimated frequency offset based on the received data samples; (c) compensating the received data samples using the estimated frequency offset; (d) repeating steps (b)-(c) for a predetermined number of iterations by substituting the compensated data samples for the received data samples in step (b); and (e) summing the estimated frequency offset of each iteration to calculate an overall estimated frequency offset.

Abstract: A mobile device capable of scaling input data and a method thereof. The mobile device comprises a data segmentation module, a quality measure module, and a scaling module. The data segmentation module divides the input data into a plurality of subdata. The quality measure module, coupled to the data segmentation module, calculates signal quality of each subdata. The scaling module, coupled to the quality measure module, scales each subdata according to corresponding signal quality.

Abstract: An electric guitar string tension adjustment structure, which includes a bridge body mounted on a bottom block to hold a tremolo arm, a set of saddle blocks transversely adjustably fastened to the bridge body by screws, each saddle block having an elongated slot which guides a respective string, a plurality of tension screw studs respectively mounted in respective vertical locating holes at the saddle blocks to support respective strings being guided out of the saddle blocks to the head of the electric guitar, a plurality of adjustment nuts respectively mounted in respective horizontal slots at the saddle blocks and threaded onto the tension screw studs and rotated to change the elevation of the respective tension screw studs, enabling the tension of the respective strings to be adjusted, and a screwdriver for inserting into an insertion hole at each of the saddle blocks to mesh with the toothed peripheral wall of the respective adjustment nut for enabling the respective adjustment nut to be turned with the s

Abstract: A bridge and tremolo arm assembly for an electric guitar, including a bridge body mounted on a bottom block to hold a tremolo arm, a set of tension screw seats transversely adjustably mounted on the bridge body by screws, each tension screw seat having an elongated slot, which guides a respective string, a plurality of tension screw studs respectively mounted in respective vertical locating holes on the tension screw seats to support respective strings being guided out of the tension screw seats to the head of the electric guitar, and a plurality of adjustment nuts respectively mounted in respective horizontal slots at the tension screw seats and threaded onto the tension screw studs, the adjustment nuts being rotated to change the elevation of the respective tension screw studs in adjusting the tension of the respective strings.