Abstract: An active electronic tag for a memory card is disclosed herein. The active electronic tag includes an antenna, a first amplifier, an automatic gain control circuit, a phase synchronization locking circuit, a decoding and TX/RX control unit and a second amplifier. The antenna receives a detecting signal transmitted from a card reader, in which the detecting signal is carried on a first carrier. The phase synchronization locking circuit generates a positive carrier and a negative carrier with a phase difference of 180 degree. The decoding and TX/RX control unit generates a response signal, which is carried on the negative carrier. By utilizing the phase difference of the first carrier and the negative carrier, the response signal cancels the first carrier on the card reader, so as to transmit the information saved inside the active electronic tag.

Abstract: An active electronic tag for a memory card is disclosed herein. The active electronic tag includes an antenna, a first amplifier, an automatic gain control circuit, a phase synchronization locking circuit, a decoding and TX/RX control unit and a second amplifier. The antenna receives a detecting signal transmitted from a card reader, in which the detecting signal is carried on a first carrier. The phase synchronization locking circuit generates a positive carrier and a negative carrier with a phase difference of 180 degree. The decoding and TX/RX control unit generates a response signal, which is carried on the negative carrier. By utilizing the phase difference of the first carrier and the negative carrier, the response signal cancels the first carrier on the card reader, so as to transmit the information saved inside the active electronic tag.

Abstract: A motor apparatus includes a motor, a speaker for generating a denoise sound wave according to a speaker driving signal to offset a noise generated by the motor, and a driving device including a memory for storing a noise characteristic information of the motor, a control circuit for determining a rotation speed and a rotation angle of the motor to generate a rotation information and generating a noise simulation information according to the rotation information and the noise characteristic information, a motor driver for driving the motor according to the rotation information, and an active denoise circuit including a synthesizer for generating an inverted noise simulation signal according to the noise simulation information, and a speaker driver for generating the speaker driving signal according to the inverted noise simulation signal.

Abstract: A multi-channel output device for a multimedia device includes a plurality of reception ends, an amplifier having an input end and an output end, a plurality of sound output devices for outputting sound, a first switching unit coupled between the plurality of reception ends and the input end of the amplifier for coupling a reception end of the plurality of reception ends to the input end of the amplifier according to a control signal, a second switching unit coupled between the output end of the amplifier and the plurality of sound output devices for coupling the output end of the amplifier to a sound output device of the plurality of sound output devices according to the control signal, and a control unit coupled to the first switching unit and the second switching unit for outputting the control signal.

Abstract: In a driving arrangement for an OLED panel, by using different voltage levels for a gate driver and a source driver, a driving voltage higher than a wafer process voltage is produced for the OLED panel and therefore improves the picture quality.

Abstract: A multi-channel output device for a multimedia device includes a plurality of reception ends, an amplifier having an input end and an output end, a plurality of sound output devices for outputting sound, a first switching unit coupled between the plurality of reception ends and the input end of the amplifier for coupling a reception end of the plurality of reception ends to the input end of the amplifier according to a control signal, a second switching unit coupled between the output end of the amplifier and the plurality of sound output devices for coupling the output end of the amplifier to a sound output device of the plurality of sound output devices according to the control signal, and a control unit coupled to the first switching unit and the second switching unit for outputting the control signal.

Abstract: A driving apparatus for an OLED panel comprises a common timing controller with a multi-line addressing algorithm and a segment controller with the multi-line addressing algorithm, to control a common driver and a segment driver, respectively, to drive the OLED panel. The common driver and the segment driver are connected to common lines and segment lines of the OLED panel, respectively. According to the multi-line addressing algorithm, the common driver can select at least two of the common lines at a same time.

Abstract: A dual OLED panel module uses a common package for linking two display panels. The common package has wires for a controller chip to deliver driving signals to drive the two panels simultaneously or either one. The dual OLED panel module needs fewer components, has smaller mechanical dimension, and requires lower cost.

Abstract: In a driving arrangement for an OLED panel, by using different voltage levels for a gate driver and a source driver, a driving voltage higher than a wafer process voltage is produced for the OLED panel and therefore improves the picture quality.

Abstract: An apparatus for eliminating noise is disclosed. The present invention includes a counter, which counts in a first direction when an input signal is active, and in a second direction otherwise. A determining device is used to determine a predetermined first threshold value, and assert an output signal while such value is reached. The present invention also includes a limiting device, which prevents the counter from counting beyond or below a predetermined limit value.