摘要:
An audio system utilizes a method for detecting and adjusting a sound field effect thereof. The audio system includes a first speaker and a second speaker. The first speaker is used to emit a first sound signal, and the second speaker is used to emit a second sound signal. The method for adjusting the sound field effect includes the steps of detecting a specific position and adjusting the first speaker or the second speaker based on the specific position to focus the first sound signal and the second sound signal on the specific position.
摘要:
An acoustic calibration sound system includes a coordinate position detecting device and a host. The coordinate position detecting device is used for detecting a position of a listener in a space plane and issuing a corresponding position signal. The host outputs an audio signal. The host has an acoustic characteristic parameter matrix containing multiple acoustic characteristic parameters related to multiple positions in the space plane. The host selects a corresponding acoustic characteristic parameter in response to the position signal. According to the selected acoustic characteristic parameter, the host adjusts the audio signal.
摘要:
The present invention relates to a digital television receiving device and a method for adjusting digital television signals thereof. The method comprises: receiving a GPS signal; obtaining a moving velocity of the digital television receiving device according to the GPS signal; looking up a parameter table to obtain one frequency adjusting value of the digital television signal corresponding to the moving velocity; and adjusting the frequency of the received digital television signal according to the frequency adjusting value of the moving velocity.
摘要:
A wireless communication device using a single spiral inductor antenna and a signal receiving/transmitting method thereof operated on multi-band are provided. The single spiral inductor antenna is designed to have a plurality of different inductance paths. Different inductance values are inducted with signal paths switched by a plurality of switches so as to meet the requirements of multi-band operation. As the circuit structure of the single spiral inductor antenna is used, the circuit area is reduced effectively.
摘要:
An extendable heat dissipation apparatus includes a base, an extendable heat dissipation member and a connecting element. A normal fin is formed on the base, and the connecting element integrates the extendable heat dissipation member in the apparatus with the base. The extendable heat dissipation member can be extendable to an extending location and can also be stored in a storing location with respect to the base.
摘要:
The present invention provides a power supply and computer using the same. The power supply includes a housing having a first surface and second surface. An audio input connector is arranged on the first surface for receiving audio signal. An audio output connector is arranged on the second surface. An AC to DC power conversion module is arranged in the housing for converting AC power into DC power. An audio power amplification module is arranged in the housing for amplifying the audio signal and outputting the amplified audio signal via the audio output connector. A DC to DC power conversion module is arranged in the housing and connected to the AC to DC power conversion module for converting the DC power supplied by the AC to DC power conversion module.
摘要:
A circuit board having heat dissipation through holes, wherein a plurality of through holes are provided in the perimeter of the chip on the circuit board, and heat conduction elements are utilized to connect the heat dissipater and auxiliary heat dissipater provided on two sides of the circuit board. The heat conduction element may be the heat conduction column or heat pipe made of copper or aluminum, and is used to connect the heat dissipater and auxiliary heat dissipater with the shortest distance, thus achieving the speedy transfer of heat generated by the chips and raising the heat dissipation efficiency significantly.
摘要:
A dongle for coupling a signal source device and a signal sink device is disclosed. The dongle includes an interface receptacle, a display port interface plug, a repeater, a low-dropout regulator and an impedance unit. The interface receptacle is a DVI receptacle or a HDMI receptacle. The repeater is electrically connected between the interface receptacle and the display port interface plug to enhance signals. The low-dropout regulator includes a power input end and a power output end. The power input end is electrically connected to the interface receptacle, and the power output end is electrically connected to the display port interface plug. The impedance unit is electrically connected between the power output end of the low-dropout regulator and the interface receptacle. The signal source device may output the display port signal needed by the signal sink device according to the function of the dongle.
摘要:
A multimedia playing system includes an audio outputting device and a multimedia player. The audio outputting device includes a connecting plug and a distance detector. The distance detector generates a distance detecting signal if the distance detector detects the presence of a nearby object. The multimedia player is communicated with the audio outputting device through the connecting plug so as to transmit an output audio signal to the audio outputting device. The distance detecting signal is transmitted to the multimedia player through the connecting plug. The multimedia player generates a prompt event to the audio outputting device if the time duration of continuously receiving the distance detecting signal exceeds a time threshold.
摘要:
A three dimensional (3D) transformer includes a first coil and a second coil. Each coil includes a first port, a second port, a top layer metal line, inter-layer inner metal lines, inter-layer outer metal lines and a bottom layer metal line. Each metal line of the first coil and that of the second coil are correspondingly arranged to the opposite side of each other. Each of the first port is electrically connected to each of the top metal line. Each coil is arranged clockwise from the top metal line, the inter layer inner metal line down to the bottom layer metal line and arranged clockwise from the bottom layer metal line, the inter layer outer metal line up to the upper metal line of the inter layer outer metal line. Each upper metal line of the inter layer outer metal line is electrically connected to each second port.