Abstract: A wireless earphone system includes a main device and two ear-hang devices. The main device having a digital signal processor, a server-end wireless transmitting module and a server-end wireless receiving module electrically connected with the digital signal processor respectively. Each ear-hang device has a microphone, a speaker, a client-end wireless transmitting module electrically connected to the microphone and a client-end wireless receiving module electrically connected to the speaker. The microphone collects an external sound wave and converts the external sound wave into an electronic signal for transmission to the digital signal processor by the client-end wireless transmitting module and the server-end wireless receiving module, and the processed electronic signal is transmitted by the server-end wireless transmitting module and the client-end wireless receiving module to the microphone for converting into a sound wave.

Abstract: An earphone set includes a main device having a digital signal processor, and an earplug has an external microphone and a speaker electrically connected with the digital signal processor respectively. The external microphone converts an external sound wave into an electronic signal and transmits the electronic signal to the digital signal processor for processing. The speaker converts the electronic signal processed by the digital signal processor into a sound wave for output.

Abstract: An earpiece device includes a housing having a sound output portion, a speaker and a microphone. The speaker disposed in the housing includes a diaphragm and a sound transmitting hole. The diaphragm is located between the sound output portion and the sound transmitting hole. The microphone is disposed in the housing and covers the sound transmitting hole. A sound wave generated within an ear canal would be received by the speaker and delivered through the sound transmitting hole to the microphone for pickup.

Abstract: The present invention provides a multi-band antenna to which the arrangement of Koch fractal antenna is applied. The multi-band antenna is designed in triangular shape whose area is smaller than the general antenna structure. By using the arrangement of Koch fractal antenna, the area of the inverted-F dual-band antenna can be reduced efficiently, so as to enhance more usability.

Abstract: The present invention provides a multi-band antenna to which the arrangement of Koch fractal antenna is applied. The multi-band antenna is designed in triangular shape whose area is smaller than the general antenna structure. By using the arrangement of Koch fractal antenna, the area of the inverted-F dual-band antenna can be reduced efficiently, so as to enhance more usability.

Abstract: The invention relates to an electronic apparatus with an antenna apparatus. The antenna apparatus comprises an active antenna for receiving a radio frequency signal, a low noise amplifier for receiving the radio frequency signal from the active antenna and outputting a first signal, and a connection part for connecting to the electronic apparatus. The electronic apparatus comprises an interface port for connecting to the connection part, a processing module for receiving the first signal, and a power unit for providing power to the antenna apparatus by the interface port.

Abstract: The present invention provides a multi-band antenna to which the arrangement of Koch fractal antenna is applied. The multi-band antenna is designed in triangular shape whose area is smaller than the general antenna structure. By using the arrangement of Koch fractal antenna, the area of the inverted-F dual-band antenna can be reduced efficiently, so as to enhance more usability.

Abstract: A woofer module is used for outputting alow-frequency audio signal, and can be inserted into and removed from anexpansion slot of a portable computer. The woofer module has a housing, a speaker unit positioned inside the housing for generating the audio signal, a predetermined space positioned inside the housing for resonating the audio signal, and a bass reflex duct positioned inside the housing which is connected to an output vent of the predetermined space and an output vent of the housing for transmitting the audio signal from the output vent of the housing to an ambientenvironment.

Abstract: A woofer module is used for outputting alow-frequency audio signal, and can be inserted into and removed from anexpansion slot of a portable computer. The woofer module has a housing, a speaker unit positioned inside the housing for generating the audio signal, a predetermined space positioned inside the housing for resonating the audio signal, and a bass reflex duct positioned inside the housing which is connected to an output vent of the predetermined space and an output vent of the housing for transmitting the audio signal from the output vent of the housing to an ambientenvironment.

Abstract: The present invention provides a shock absorber module used in a portable computer. The shock absorber module includes a bracket, at least one shock absorber, and a modular housing. The bracket accommodates an electronic device therein. The shock absorber connected to a bottom surface of said bracket provides the electronic device with shock absorbing capability. The modular housing provides a space to accommodate the bracket and the shock absorber. The modular housing is detachably installed in an accommodation slot of the portable computer. The present invention also provides a data processing system including a host system, a display device, an input device, a data storage device, and a shock absorber module as above-mentioned.