Abstract: An electronic device includes a substrate, a first device, a second device, and a shielding wall. The first device and the second device are disposed on the substrate respectively. The shielding wall is disposed independently between the first device and the second device. The shielding wall is configured for suppressing the electromagnetic interference from the second device to the first device.

Abstract: A file classifying system and a file classifying method are disclosed herein, where the system includes a storing device storing at least one recognizing audio signal, a receiving device, and a processor. The receiving device receives an audio file or a video file. The processor compares a related audio signal and the at least one recognizing audio signal so as to generate a result of process, where the related audio signal is correlated to the audio file or the video file, and then automatically classifies the audio file or video file into a category.

Abstract: An electronic device includes a substrate, a first device, a second device, and a shielding wall. The first device and the second device are disposed on the substrate respectively. The shielding wall is disposed independently between the first device and the second device. The shielding wall is configured for suppressing the electromagnetic interference from the second device to the first device.

Abstract: A DTV receiving antenna device includes a case, a DTV receiving antenna. The case includes a top cover and a bottom cover. The antenna is situated in the case, including a metal conductor, a circuit board, a matching circuit and a conductive line. The metal conductor is disposed into the top cover. The circuit board is disposed into the bottom cover and includes a ground layer. The matching layer is formed on the circuit board, including a first metal part and a second metal part and a capacitance. The second metal part has a signal feeding point, and there is a gap formed between the first metal part and the second metal part. The capacitance is disposed on the gap and electrically connected to the first metal part and the second metal part. The conductive line is electrically connected to the first metal part and the metal conductor disposed into the top cover.

Abstract: The present invention discloses a DTV antenna apparatus build in a portable device. The portable device includes a system ground. The DTV antenna includes a ground plane with a short circuit point, an extending metal arm with a grounding point and a radiation element. The ground plane is the system ground. The radiation element and the ground plane are arranged in parallel to each other. The extending metal arm connects with the short circuit point. The antenna receives signals with frequencies in the range from 470 MHz to 870 MHz. The radiation element includes a radiation arm and a parasitic arm. The radiation arm has a feeding terminal. The parasitic arm connects with the short circuit point.

Abstract: A digital TV antenna includes a grounding plane, a first radiation conductor, a second radiation conductor and a third radiation conductor. The grounding plane and the first radiation conductor are located in the first surface of a substrate. The second radiation conductor and the third radiation conductor are located in the second surface opposite to the first surface. Partial second radiation conductor covers the first radiation conductor to form an overlapping region. Partial third radiation conductor covers the first radiation conductor to form an overlapping region.

Abstract: An antenna device for use with a wireless signal processing interface includes a main body; an antenna module received by the main body and having a first signal-receiving bar and a second signal-receiving bar pivotally protruding from a first surface and a second surface of the main body, respectively; and a securing member having a first portion coupled to the main body and a second portion to be detachably coupled to a supporting object. The securing member is made of an elastic material and distorted when coupled to the supporting object so as to provide a securing force to fix the antenna device onto the supporting object.

Abstract: A digital TV antenna includes a grounding plane, a first radiation conductor, a second radiation conductor and a third radiation conductor. The grounding plane and the first radiation conductor are located in the first surface of a substrate. The second radiation conductor and the third radiation conductor are located in the second surface opposite to the first surface. Partial second radiation conductor covers the first radiation conductor to form an overlapping region. Partial third radiation conductor covers the first radiation conductor to form an overlapping region.

Abstract: A high-voltage pulse protection device includes an input connector, a separating capacitor and an output connector. A video receiving terminal of the input connector receives a video signal from a RF cable. An input terminal of the separating capacitor is electrically connected to a video transferring terminal of the input connector to receive the video signal. An output terminal of the separating capacitor induces and outputs a sub-signal response to the video signal. A video receiving terminal of the output connector receives the sub-signal, and a video transferring terminal of the output connector transfers the sub-signal to a video processing module.

Abstract: The present invention discloses a DTV antenna apparatus build in a portable device. The portable device includes a system ground. The DTV antenna includes a ground plane with a short circuit point, an extending metal arm with a grounding point and a radiation element. The ground plane is the system ground. The radiation element and the ground plane are arranged in parallel to each other. The extending metal arm connects with the short circuit point. The antenna receives signals with frequencies in the range from 470 MHz to 870 MHz. The radiation element includes a radiation arm and a parasitic arm. The radiation arm has a feeding terminal. The parasitic arm connects with the short circuit point.

Abstract: An antenna device for use with a wireless signal processing interface includes a main body; an antenna module received by the main body and having a first signal-receiving bar and a second signal-receiving bar pivotally protruding from a first surface and a second surface of the main body, respectively; and a securing member having a first portion coupled to the main body and a second portion to be detachably coupled to a supporting object. The securing member is made of an elastic material and distorted when coupled to the supporting object so as to provide a securing force to fix the antenna device onto the supporting object.

Abstract: A high-voltage pulse protection device includes an input connector, a separating capacitor and an output connector. A video receiving terminal of the input connector receives a video signal from a RF cable. An input terminal of the separating capacitor is electrically connected to a video transferring terminal of the input connector to receive the video signal. An output terminal of the separating capacitor induces and outputs a sub-signal response to the video signal. A video receiving terminal of the output connector receives the sub-signal, and a video transferring terminal of the output connector transfers the sub-signal to a video processing module.