Abstract: A decoding algorithm for quadratic residue codes applicable to the decoding of all quadratic residue codes is provided. The decoding algorithm employs digital signals to obtain a plurality of known syndromes. These known syndromes are used to calculate a plurality of unknown syndromes. The inverse-free Berlekamp-Massey algorithm is then used to calculate the error polynomial, after which the Chien search algorithm is used to determine the error locations. Adjustments can then be made to the digital signal bits corresponding to the error locations to obtain the correct code.

Abstract: An Internet media broadcast system, method therefor and recording medium for executing the same are provided. The Internet media broadcast system includes a server unit, a client unit, and a media dongle. The server unit includes an Internet radio station database and an advertising database respectively with built-in accessible Internet station information and commercial advertisement information. To listen to online broadcast, user plugs the media dongle into the transmission interface of the client unit to enable the automatic execution of the Internet broadcasting software program in the dongle to obtain accessible Internet radio station information and commercial advertisement information via networking and link up to an Internet radio station to listen to the broadcast and the latest sales promotion or information on new products.

Abstract: A chirp optical waveguide includes a chirp grating formed in a ferroelectric substrate, and a waveguide part orthogonal to the chirp grating. The chirp grating has a plurality of grating segments and has a normalized grating period ?x/?0 that increases exponentially in each grating segment and decreases stepwise from each grating segment to a following one of the grating segments, where ?0 is an initial grating period at the wave propagation distance of zero, and ?x is a grating period at the wave propagation distance of x. The chirp grating provides high wave conversion efficiency for short pulse widths and effectively compensates for a reduction in conversion efficiency due to chromatic dispersion.

Abstract: A light emitting diode (LED) lamp tube includes a circuit board and a tubular enclosure. The circuit board is disposed in the enclosure such that the enclosure is divided into a non-illuminated portion and a light-receiving portion. The light-receiving portion has two light-condensing side sections corresponding respectively to two sides of the circuit board, and a light-diffusing middle section connected between the light-condensing side sections. An outer surface of the light-receiving portion has a smoothly varying curvature. The light-condensing side sections cooperate with the light-diffusing middle section to diffuse uniformly LED light transmitted from an outer surface of the enclosure.

Abstract: A light emitting diode (LED) lamp tube includes a tubular enclosure extending along an axial direction and having an inner peripheral surface. A lamp device is disposed in the enclosure, and includes a circuit board, and a plurality of LEDs electrically connected to the circuit board. Two connectors are disposed respectively at two ends of the enclosure and are electrically connected to the circuit board. The connectors are adapted to be electrically connected to a power source. An optical film unit is disposed on the inner peripheral surface of the enclosure. The optical film unit has a film body and a plurality of protrusions arranged along the axial direction and protruding from the film body toward the inner peripheral surface of the enclosure.

Abstract: A light emitting diode (LED) lamp tube includes a lamp device including a circuit board, and a plurality of LEDs mounted on the circuit board. The circuit board is disposed in a tubular enclosure such that an inner peripheral surface of the enclosure is divided into a non-illuminated portion and a light-receiving portion. The tubular enclosure has a plurality of tapered protrusions extending from the light-receiving portion toward the LEDs. Each of the tapered protrusions converges from the light-receiving portion toward the LEDs. Each of the tapered protrusions further has a maximum width at an outer end thereof, which increases gradually from a middle portion of the light-receiving portion toward junctions of the light-receiving portion and the non-illuminated portion.

Abstract: A camera with a built-in license plate recognition function includes a license plate information base, a general purpose input/output (GPIO) port, an image-capturing module, a license plate image processor, a communication module, an audio-capturing module, and a processor. In the camera, the image-capturing module captures a license plate image when determining a vehicle enters/exits from a vehicle access control site; next, the license plate image processor segments and recognizes the image with a conventional image processing technique and compares the image with that in the license plate information base; and then the GPIO port controls the entrance/exit of the vehicle through a collapsible door, a sensor, and an alarm. Furthermore, remote control software may be installed on an external equipment, and the external equipment is connected to the communication module in a wired/wireless manner for achieving remote monitoring.

Abstract: A blood sampler is adapted for penetrating epidermis of skin in order to collect blood, and includes a plate, a thin-film electrode unit, and a plurality of spaced apart penetrating members. The plate has an upper surface that is indented to form a recess adapted for containing the blood. The thin-film electrode unit is provided in the plate and has a reactive section that is exposed at a bottom of the recess. The penetrating members are provided on the reactive section of the thin-film electrode unit. Each of the penetrating members has a bottom end that is wire-bonded to the reactive section of the thin-film electrode unit, and a top end that is not higher than the upper surface of the plate.

Abstract: A beamformer includes a number (T) of consecutive combining stages. A Tth combining stage includes a converging unit. Each of first to (T?1)th combining stages includes a plurality of converging units. The number of the converging units in a preceding combining stage is greater than that of a succeeding combining stage. Each converging unit in the first combining stage combines three arrival signals from an antenna array in accordance with corresponding weights so as to form an output signal. Each converging unit in each of second to (T?1)th combining stages combines output signals of three corresponding converging units in an immediately preceding combining stage in accordance with corresponding weights so as to form an output signal. The converging unit of the Tth combining stage combines the output signals from the converging units in the (T?1)th combining stage in accordance with corresponding weights so as to form an output signal that serves as an array pattern.

Abstract: A method for determining an optimum sampling frequency to be performed by a power analyzer includes the following computer-implemented steps: sampling a time domain signal to obtain a sampling signal according to a predetermined sampling frequency; obtaining two reference sampling signals using higher and lower sampling frequencies compared to the predetermined sampling frequency; transforming the sampling signal and the reference sampling signals to frequency domain signals; computing a sum-of-amplitudes for each of the three frequency domain signals; estimating a minimum sum-of-amplitudes value and a corresponding re-sampling frequency; obtaining a new reference sampling signal using the re-sampling frequency; transforming the new reference sampling signal to a frequency domain signal, and computing a sum-of-amplitudes therefor; and re-estimating the minimum sum-of-amplitudes value and the corresponding re-sampling frequency.

Abstract: A lens device includes a control unit, an objective lens, an image sensor, a light source, a detecting unit, and a tube assembly. The tube assembly includes a guide barrel, an outer tube, and a lens holder. The guide barrel is disposed on the control unit and confines a barrel hole that extends along a barrel axis. The outer tube includes a tube body that is rotatably sleeved on the guide barrel, and a guiding portion. The lens holder includes a holder body having a set of projections driven by the guiding portion. The image sensor is electrically coupled to the control unit. The objective lens is optically aligned with the image sensor. The light source is coupled electrically to the control unit. The detecting unit generates a detector output indicating angular orientation of the outer tube. The control unit is responsive to the detector output to control intensity of light outputted by the light source.

Abstract: A decoding method of a cyclic code decoder includes the machine-implemented steps of: establishing a lookup table; receiving a codeword; computing a syndrome and a Hamming weight; if the Hamming weight is not equal to zero and not greater than an error correcting capability value, performing a first error correcting operation; if the Hamming weight is greater than the error correcting capability value, and if the syndrome has a matching syndrome pattern in the lookup table, performing a second error correcting operation; if a second Hamming weight corresponding to a syndrome difference is smaller than a check value, performing a third error correcting operation, otherwise performing a fourth error correcting operation; and if a counter value is greater than zero, performing a fifth error correcting operation before decoding a corrected codeword.

Abstract: A method for establishing a simulating signal suitable for estimating a complex exponential signal includes the following computer-implemented steps: sampling a time domain signal of a physical system to obtain a sampling signal; transforming the sampling signal to a frequency domain signal using Fast Fourier Transform; determining parameters of the frequency domain signal; establishing a simulating signal; establishing a target function which is a deviation of the simulating signal from the sampling signal; obtaining correcting factors; iterating the target function using a gradient method and the correcting factors to obtain three sets of iterated signal parameters; obtaining corrected parameters using quadratic interpolation; and using the corrected parameters to correct the simulating signal, and establishing an updated target function. The simulating signal can be used to estimate dynamic behavior of the physical system if the updated target function converges to a tolerable range.

Abstract: A glassy metal composite material includes: a Mg-based amorphous metal matrix; and a plurality of porous metal particles dispersed in the Mg-based amorphous metal matrix. The Mg-based amorphous metal matrix penetrates into pores in the porous metal particles. The porous metal particles have a hardness less than that of the Mg-based amorphous metal matrix.

Abstract: A method for optimization of a frequency spectrum includes the following steps: sampling a time domain signal to obtain an initial sampling signal based upon a first subset of sample points; transforming the initial sampling signal to a frequency domain signal; determining a frequency parameter and an amplitude parameter for each of harmonic components of the frequency domain signal; establishing a leakage energy equation and a graduation shifting quantity; determining an optimum number of sample points that will result in minimum leakage energy; obtaining an adjusted sampling signal based on a second subset of the sample points, wherein the number of the sample points in the second subset is equal to the optimum number; and transforming the adjusted sampling signal to an optimized frequency domain signal having harmonic components associated with graduations of an optimized frequency spectrum, wherein the graduations are calculated based upon the graduation shifting quantity.

Abstract: An Internet radio system and method therefor are provided. The Internet radio system includes a server unit, a client unit, and an Internet radio dongle. The server unit contains an Internet radio station list database with built-in accessible Internet radio station list. To listen to online broadcast, user plugs the Internet radio dongle into the transmission interface of the client unit to enable the automatic execution of the Internet radio software program in the dongle and links up to an Internet radio station to listen to the broadcast by accessing the Internet ratio station link list in the Internet radio station list database via the Internet.

Abstract: A network audio/video (AV) rescue system is provided, which includes more then one rescue terminals, and each rescue terminal transmits signals with a server through a same protocol. When a rescue terminal is activated by a local user, image and audio signals can be transmitted for calling a rescue. A server can immediately receive the image and audio signals and determine the network address of the rescue terminal sending the signals. Therefore, a remote user on the server end can communicate with the local user through the server, such that the remote user can know what is needed for the local user and to provide necessary help and assistance to the local user.

Abstract: A method for making a SAW device package includes the steps of: forming a pattern of a metal layer, that defines transmitting and receiving transducers of a SAW die, on a wafer; forming a pattern of a first photo sensitive layer, which defines a peripheral wall of a cap of the SAW die, on the metal layer and the wafer through lithography techniques; forming a pattern of a second photo sensitive layer, which defines a cover wall of the cap of the SAW die, on the first photo sensitive layer through lithography techniques; curing the first and second photo sensitive layers; dicing the wafer into SAW dies; and encapsulating the SAW dies with a molding compound.