Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: A detecting method adapted to detect a detecting cassette is provided. A detecting cassette is placed into a device main body to be located at a detecting region inside the device main body. At least one image of the detecting region is captured by an image capturing unit. Whether a function of the image capturing unit is normal is determined by a determining unit according to a grayscale value of the at least one image. If the function of the image capturing unit is normal, a detection result is determined by the determining unit according to a portion of the at least one image corresponding to the detecting cassette.

Abstract: A detecting method adapted to detect a detecting cassette is provided. A detecting cassette is placed into a device main body to be located at a detecting region inside the device main body. At least one image of the detecting region is captured by an image capturing unit. Whether a function of the image capturing unit is normal is determined by a determining unit according to a grayscale value of the at least one image. If the function of the image capturing unit is normal, a detection result is determined by the determining unit according to a portion of the at least one image corresponding to the detecting cassette.

Abstract: The present invention discloses an interface switching system including an electronic device, wherein the electronic device includes an audio socket, a first set of interface lines, a set of audio interface lines, a first switching device, an interface socket and a processor. The audio socket is arranged to be coupled to an audio plug. The first switching device is arranged to couple the audio socket to the first set of interface lines or the set of audio interface lines. The interface socket is arranged to be coupled to a first interface plug or a second interface plug. The processor is arranged to enable the first switching device to couple the audio socket to the first set of interface lines when the interface socket is coupled to the second interface plug.

Abstract: The present invention discloses an interface switching system including an electronic device, wherein the electronic device includes an audio socket, a first set of interface lines, a set of audio interface lines, a first switching device, an interface socket and a processor. The audio socket is arranged to be coupled to an audio plug. The first switching device is arranged to couple the audio socket to the first set of interface lines or the set of audio interface lines. The interface socket is arranged to be coupled to a first interface plug or a second interface plug. The processor is arranged to enable the first switching device to couple the audio socket to the first set of interface lines when the interface socket is coupled to the second interface plug.