Abstract: An amplifier has a self-bias circuit to generate the bias voltage for the input of the amplifying circuit in the amplifier, thereby simplifying the circuit complexity to reduce the size and cost of the amplifier.

Abstract: A method for delineation of characteristic points in an electrocardiogram signal includes the steps of: (a) processing the electrocardiogram signal to obtain at least one multiscale differential operator wavelet transform thereof; and (b) locating at least one characteristic point in at least one wave segment of the electrocardiogram signal based on the at least one multiscale differential operator wavelet transform.

Abstract: An amplifier has a self-bias circuit to generate the bias voltage for the input of the amplifying circuit in the amplifier, thereby simplifying the circuit complexity to reduce the size and cost of the amplifier.

Abstract: A USB interface provided with USB host/device function and its control method is disclosed. The USB interface includes a control unit, a USB host, a USB device, a memory, a port router and a plurality of connection ports. The control unit is used to define the connection ports to be either an upstream port or downstream port. It also controls signal flows within the USB control interface. The signal flows are provided for the USB host and the USB device. The memory is used to store data during the operation of the USB control interface. The USB host is coupled to an external device via the port router, and the USB device is coupled to an external host via the port router.

Abstract: A color filter substrate includes a substrate, a black matrix, a color filter layer and a common electrode. The black matrix is formed on the substrate and partially distributed on the substrate, wherein the black matrix further includes a resin layer and a light shield layer for lowering the reflectance, and improving the light shielding capability. The color filter layer is formed on the substrate where it is not covered by the black matrix. The common electrode is formed on top of the color filter layer, and the black matrix.

Abstract: A color filter substrate includes a substrate, a black matrix, a color filter layer and a common electrode. The black matrix is formed on the substrate and partially distributed on the substrate, wherein the black matrix further includes a resin layer and a light shield layer for lowering the reflectance, and improving the light shielding capability. The color filter layer is formed on the substrate where it is not covered by the black matrix. The common electrode is formed on top of the color filter layer, and the black matrix.