Abstract:
A direction detecting apparatus is adapted for installation on a vehicle, and includes a first sound collecting unit, a second sound collecting unit, an identifying unit, a direction estimating unit, and a notifying unit. The first and second sound collecting units collect sounds from roads. The identifying unit identifies the types of the sounds collected by the first and second sound collecting units. The direction estimating unit determines whether a warning sound comes from the front when the sound type identified by the identifying unit is a warning sound. The direction estimating unit estimates the direction of the warning sound when the warning sound comes from the front, and estimates a lane in which the warning sound is located when the warning sound comes from behind. The notifying unit is for providing notification of the estimation result of the direction estimating unit.
Abstract:
In a method and system for identifying speech sound and non-speech sound in an environment, a speech signal and other non-speech signals are identified from a mixed sound source having a plurality of channels. The method includes the following steps: (a) using a blind source separation (BSS) unit to separate the mixed sound source into a plurality of sound signals; (b) storing spectrum of each of the sound signals; (c) calculating spectrum fluctuation of each of the sound signals in accordance with stored past spectrum information and current spectrum information sent from the blind source separation unit; and (d) identifying one of the sound signals that has a largest spectrum fluctuation as the speech signal.
Abstract:
An apparatus and a method for measuring gap width, displacement shift or relative position between two subjects using surface plasmon resonance (SPR) are disclosed. First, a TM mode light beam is provided, so as to generate SPR on a surface of one of the two subjects. Then, the signal of the reflective light or penetrative light on the surface is measured. Because SPR is sensitive to the changes of the gap, displacement shift or relative position when the width of the gap is equal to or smaller than twice the penetration length of the surface plasmon wave, the gap, displacement shift and relative position can be acquired by sensing changes of the signal. Accordingly, the width of the gap, displacement shift, relative position and surface roughness smaller than twice the penetration length or even less than 10 nm can be measured.
Abstract:
An intelligent power socket system is disclosed. The system is composed of a control module, a switched electricity receptacle module, a switched USB module and a dimming receptacle module. Each module has a power plug and a power socket. The control module can receive control commands from a smartphone by a user. The other three functional modules can be controlled by the control module through power line communication (PLC). The modules may be located at different places within an electricity supply division so that they can communicate through the power lines.
Abstract:
The showerhead includes a main body; a power generator disposed in the main body; a power monitor module, disposed in the main body, electrically connected to the power generator, and configured for monitoring quality of power from the power generator and switching on/off power supply of the power generator; and a control module, disposed in the main body, electrically connected to the power monitor module, and configured for controlling functions.
Abstract:
The ignition system includes a mini hydroelectric generator module connecting an inlet pipe for generating electricity by water flow passing through the inlet pipe and it; a power quality monitoring module electrically connecting the mini hydroelectric generator module for monitoring output electricity quality of the mini hydroelectric generator module and switching on/off the electricity; an ignitor electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to ignite; and an electronic valve electrically connecting the power quality monitoring module for receiving electricity from the power quality monitoring module to switch on/off a gas pipe.
Abstract:
A miniature sieve apparatus is described and includes a first sieve, a separator and a second sieve from top to bottom. The first and second sieves are formed with at least one first mesh and a plurality of second meshes, respectively. The first and second meshes are misaligned with each other in a vertical direction of the first and second sieves. The miniature sieve apparatus is provided to separate or screen microparticles with different sizes, such as target cells, bio-medical particles, organic or inorganic microparticles. Additionally, the invention also provides a manufacturing method of the miniature sieve apparatus, and the same material is applied to manufacture the sieves and the separators. Thus, the problem caused by the residual thermal stress due to different material can be solved. Therefore, the cost of the miniature sieve apparatus can be lowered as the yield rate thereof is improved.
Abstract:
This disclosure discloses a light-emitting device. The light-emitting device comprises a substrate; a first photovoltaic cell disposed over the substrate comprising a base layer having a first conductivity type; an emitter layer having a second conductivity type; a window layer having the second conductivity type; an intermediate structure between the emitter layer and the window layer having the second conductivity type, and comprising a first portion adjacent to the emitter layer and a second portion on the first portion. The first portion comprises a bandgap energy higher than that of the emitter layer and the intermediate structure is substantially lattice matched with the emitter layer.
Abstract:
A method for arranging memories of a low-complexity low-density parity-check (LDPC) decoder and a low-complexity LDPC decoder using the same method are provided. The main idea of the method for arranging memories of a low-complexity LDPC decoder is to merge at least one or two small-capacity memory blocks into one memory group, so that the memory area can be reduced and the power consumption in reading or writing data is lowered. Besides, as the merged memory group shares the same address line in reading or writing data, at least one delay unit is used to adjust the reading or writing order and thereby ensure data validity. A low-complexity LDPC decoder using the disclosed method can meet the demands of high processing rate and low power consumption.
Abstract:
A method and an apparatus for automatic noise compensation used with audio reproduction equipment are provided. The method comprises: (a) collecting a plurality of mixed audio signals, each mixed audio signal including equipment sound output by the audio reproduction equipment, and background noise; (b) removing the equipment sound from the mixed audio signals to obtain the background noise therein; (c) determining whether or not a plurality of mixed audio signals under inspection include a significant sound; and (d) adjusting the volume of the audio reproduction equipment according to whether or not a significant sound has been generated in the surrounding area and the magnitude of the background noise in the mixed audio signals under inspection to satisfy a plurality of predetermined compensation conditions.