Abstract: A display device with switchable viewing angle includes a display panel, a backlight source, a timing controller, a source driver chip and an LED driver module. The backlight source includes a plurality of LEDs. The timing controller is connected to the source driver chip. The source driver chip is connected to the plurality of data lines. The LED driver module is connected to the plurality of LEDs. The display panel has a narrow viewing angle mode and a wide viewing angle mode. In the narrow viewing angle mode, the luminous brightness of the plurality of LEDs is adjusted to gradually decrease from the middle to both sides of the display panel. In the wide viewing angle mode, the luminous brightness of the plurality of LED is adjusted to gradually increase from the middle to both sides of the display panel.

Abstract: A method of determining an earthquake event for an earthquake detecting system includes retrieving at least one initial wave characteristic related to each earthquake data among a plurality of earthquake data; utilizing a support vector classification (SVC) method to establish an earthquake determination model according to the initial wave characteristic; and determining whether new earthquake data belong to an earthquake event or a non-earthquake event according to the earthquake determination model when the new earthquake data are received.

Abstract: A display device with switchable viewing angle includes a display panel, a backlight source, a timing controller, a source driver chip and an LED driver module. The backlight source includes a plurality of LEDs. The timing controller is connected to the source driver chip. The source driver chip is connected to the plurality of data lines. The LED driver module is connected to the plurality of LEDs. The display panel has a narrow viewing angle mode and a wide viewing angle mode. In the narrow viewing angle mode, the luminous brightness of the plurality of LEDs is adjusted to gradually decrease from the middle to both sides of the display panel. In the wide viewing angle mode, the luminous brightness of the plurality of LED is adjusted to gradually increase from the middle to both sides of the display panel.

Abstract: An earthquake detection system includes an earthquake data receiving module, for receiving a plurality of earthquake data and generating an earthquake parameter according to the plurality of earthquake data; a threshold value setting module, for setting an earthquake threshold according to the earthquake parameter; and an earthquake detector, for determining whether a new earthquake data belongs to an earthquake event according to the earthquake threshold when the new earthquake data is received, in order to generate a determination result; wherein the threshold value setting module further adjusts the earthquake threshold according to the determination result.

Abstract: An earthquake alarm broadcasting equipment for an earthquake detecting system includes a receiver for receiving a detection result from the earthquake detecting system, wherein the detection result at least indicates a level of earthquake intensity, a memory device for storing a trigger level, a use scenario set by a user and a contingency measure corresponding to the use scenario, a processor coupled to the receiver and the memory device for generating a control signal according to the detection result, the trigger level and the contingency measures, and a functional module coupled to the processor for broadcasting an earthquake alarm and the contingency measures to the user.

Abstract: A method of multi-triggering includes calculating a specific distance according to a plurality of parameters, deploying a plurality of earthquake detectors used for detecting a vertical acceleration of a surface vibration of the earth, and determining whether an earthquake happens or not according to the plurality of earthquake detectors.

Abstract: A system and method instantly on-site analyze seismic acceleration signals measured from a primary wave of an earthquake and at a detecting site. The system includes an embedded computing host and a signal preprocessing module. Hardware preprocessing is executed on the seismic acceleration signals; and whether the earthquake is a seismic event is able to be determined according to a seism determining logic. Seismic acceleration signals are converted into ground velocities and ground displacements to obtain a peak ground displacement. A seismic fracture time parameter is calculated through the ground velocities and ground displacements and then a seismic magnitude of the earthquake is obtained. According to the peak ground displacement and the seismic magnitude, an epicentral distance is further calculated. Then a peak ground acceleration of the earthquake's shear wave at the detection site is able to be obtained through the seismic magnitude and the epicentral distance.

Abstract: An earthquake alarm broadcasting equipment for an earthquake detecting system includes a receiver for receiving a detection result from the earthquake detecting system, wherein the detection result at least indicates a level of earthquake intensity, a memory device for storing a trigger level, a use scenario set by a user and a contingency measure corresponding to the use scenario, a processor coupled to the receiver and the memory device for generating a control signal according to the detection result, the trigger level and the contingency measures, and a functional module coupled to the processor for broadcasting an earthquake alarm and the contingency measures to the user.

Abstract: The present disclosure provides an earthquake warning method. The earthquake warning method includes deploying a set of seismic device in a zone according to a criterion to detect an earthquake, generating a first earthquake warning signal when the earthquake is detected, receiving the first earthquake warning signal and a second earthquake signal; executing an decision determination according to the first earthquake warning signal and the second earthquake signal; sending first earthquake warning signal or a second earthquake signal according to the decision determination and broadcasting an earthquake warning.

Abstract: A method of multi-triggering includes calculating a specific distance according to a plurality of parameters, deploying a plurality of earthquake detectors used for detecting a vertical acceleration of a surface vibration of the earth, and determining whether an earthquake happens or not according to the plurality of earthquake detectors.

Abstract: A method of determining an earthquake event for an earthquake detecting system includes retrieving at least one initial wave characteristic related to each earthquake data among a plurality of earthquake data; utilizing a support vector classification (SVC) method to establish an earthquake determination model according to the initial wave characteristic; and determining whether new earthquake data belong to an earthquake event or a non-earthquake event according to the earthquake determination model when the new earthquake data are received.

Abstract: An earthquake detection system includes an earthquake data receiving module, for receiving a plurality of earthquake data and generating an earthquake parameter according to the plurality of earthquake data; a threshold value setting module, for setting an earthquake threshold according to the earthquake parameter; and an earthquake detector, for determining whether a new earthquake data belongs to an earthquake event according to the earthquake threshold when the new earthquake data is received, in order to generate a determination result; wherein the threshold value setting module further adjusts the earthquake threshold according to the determination result.

Abstract: A portable electronic device is disclosed. The portable electronic device includes a housing, an input module, a near distance communication chip and a near distance communication module. The input module includes a near distance communication antenna. The near distance communication chip is electronically connected with the near distance communication antenna. The near distance communication module is disposed at the housing and communicates with the near distance communication chip via the near distance communication antenna. A communication method of a portable electronic is also provided thereof.

Abstract: A system and method instantly on-site analyze seismic acceleration signals measured from a primary wave of an earthquake and at a detecting site. The system includes an embedded computing host and a signal preprocessing module. Hardware preprocessing is executed on the seismic acceleration signals; and whether the earthquake is a seismic event is able to be determined according to a seism determining logic. Seismic acceleration signals are converted into ground velocities and ground displacements to obtain a peak ground displacement. A seismic fracture time parameter is calculated through the ground velocities and ground displacements and then a seismic magnitude of the earthquake is obtained. According to the peak ground displacement and the seismic magnitude, an epicentral distance is further calculated. Then a peak ground acceleration of the earthquake's shear wave at the detection site is able to be obtained through the seismic magnitude and the epicentral distance.

Abstract: A filter for filtering noise generated by a differential signal having a specific wavelength transmitted by a first transmission line and a second transmission line is disclosed. The filter includes a multi-layer substrate, a first microstrip line and a second microstrip line. The first and the second transmission lines and the first and the second microstrip lines are disposed at the multi-layer substrate. In addition, one end of the first microstrip line and one end of the second microstrip line are electrically connected to the first and the second transmission lines, respectively, by passing through the vias, and the other end is in a floating state. The impedances of the first and the second microstrip lines match the impedances of the first and the second transmission lines, respectively. Thus, the first and the second microstrip lines may filter the noise generated by the differential signal having the specific wavelength.

Abstract: An electronic apparatus includes a first casing, a shielding component, a waveguide component and an electronic component. The first casing includes a surface. The shielding component is disposed at the surface. The waveguide component is disposed at the surface and located above the shielding component. The waveguide component and the shielding component are integratedly formed. The electronic component is disposed at the surface and electrically connected to the waveguide component. The electronic apparatus can reduce manufacture cost, labor cost, and the thickness of the display screen.

Abstract: A filter for filtering noise generated by a differential signal having a specific wavelength transmitted by a first transmission line and a second transmission line is disclosed. The filter includes a multi-layer substrate, a first microstrip line and a second microstrip line. The first and the second transmission lines and the first and the second microstrip lines are disposed at the multi-layer substrate. In addition, one end of the first microstrip line and one end of the second microstrip line are electrically connected to the first and the second transmission lines, respectively, by passing through the vias, and the other end is in a floating state. The impedances of the first and the second microstrip lines match the impedances of the first and the second transmission lines, respectively. Thus, the first and the second microstrip lines may filter the noise generated by the differential signal having the specific wavelength.