Abstract: A Bluetooth data/control message transmission module, an interaction device and a method thereof are provided in the present invention. The Bluetooth data/control message transmission module connects to a mobile device with Bluetooth. The Bluetooth data/control message transmission module includes a process unit, a modulation module and a Bluetooth module. The process unit is for providing a digital data. The modulation module receives the digital data and modulates the digital data with a analog carrier signal to generate a modulation signal whose frequency is lower than 8 KHz. The Bluetooth module uses a headset profile to link with the mobile device, wherein the mobile device serves the Bluetooth module as a headset. The Bluetooth module samples the modulation signal, to serve the sampled modulation signal as a voice signal to send to the mobile device through the Bluetooth protocol.

Abstract: The present invention relates to an apparatus and a method for interacting amusement. The apparatus includes an acoustic receiver, a decoder and an interaction generating apparatus. The acoustic receiver receives an external acoustic wave signal and transfers the external acoustic wave signal into an acoustic signal. The decoder receives the acoustic signal. When the external acoustic wave signal has a high-frequency modulation signal, the decoder decodes the high-frequency modulation signal into a complete packet message according to a specific decoding procedure. The interaction generating apparatus receives the complete packet message, and generates an interaction according to the message.

Abstract: A circuit for signal decoding in RFID or wireless power charging is provided in the present invention. The implement of the present invention is to add a current sense resistor connected to an upper switch or a lower switch the up arm switch or low arm switch to decode the signal on the current sense resistor. Since the error would occur in the original voltage decoder of the wireless power or RFID when the load is heavy and voltage signal swing is large, such that the charge status and then the off-line status cyclically occur and then the charge status . . . occurs in cycle when the mobile device is charging under charge. Since the present invention uses the voltage and current for decoding at the same time, the decoding would be succeed whenever the load is light or heavy.

Abstract: A code generating system includes a code converting module and a linker. The code converting module is configured to generate a plurality of candidate instructions, in response to a source code. The candidate instructions are then saved in an object file. The linker comprises a selecting unit which is configured to select at least one instruction, in response to a sub-hardware condition of a hardware condition, from the plurality of candidate instructions. Moreover, the linker is configured to link the selected at least one instruction to generate a final code.

Abstract: On a two-dimensional optical identification device with same gray level, a plurality of two-dimensional optical identification codes are arranged, each having a plurality of data blocks and an outer positioning block. Each data block has a plurality of defined patterns, and each defined pattern is located in one of virtual areas produced by equally dividing the data block. The outer positioning block has a plurality of first positioning points and a first direction identification point, and is placed at two adjacent boundaries of the plurality of data blocks for defining the positions of the plurality of data blocks. A fixed position data block is selected as a data block coding indication block for indicating the coding of the other data blocks.

Abstract: A capacitance touch sensor includes a square wave generator for generating a square wave clock, a sensor panel for receiving the square wave clock and then generating a panel signal, a peak detector for receiving the panel signal and then generating an analog peak signal, an analog-to-digital converter for receiving the analog peak signal and then generating a digital peak signal, and a control unit for receiving the digital peak signal and generating a detection signal according to a level of the digital peak signal to indicate whether the sensor panel is touched or not.

Abstract: The present invention relates to a position identification system and a method for gesture identification thereof. The method for gesture identification does not use the conventional digital image capture method, instead, the method uses IR detection. In order to accurately detect the movement track of the external object, in the present invention, at least two IR LED are provided. When the first IR LED emits the IR ray signal, the second IR LED is used for receiving IR ray signal. Moreover, the present invention determines the distance between the external object and the IR LEDs by detecting the emitting IRs with different energy. Further, the present invention adopts TDM (Time Division Multiplexing) such that the present invention can grasp the distance between the first IR LED and the external object and the distance between the second IR LED and the external object. Thus, the relative position of the external object can be captured.

Abstract: The invention relates to methods for adaptive clock reconstruction and decoding in audio frequency. The method includes the steps of: receiving a modulated signal, wherein the modulated signal is modulated by RC-FSK (Return to Carrier Frequency Shifting Keying); performing a spectrum analysis to the modulated signal to obtain a plurality of frequency envelopes; storing the frequency envelopes; searching the peak values of the frequency envelopes and the time points corresponding to the peak values to modify an estimated period; and generating a clock period for the RC-FSK demodulation and a clock phase for the RC-FSK demodulation according to the estimated period.

Abstract: An ultra-low power wakeup circuit device includes a keyboard, a key scan circuit, a storage unit, and a comparator unit. The key scan circuit sequentially outputs scanning signals from the first scan line to N-th scan line for acquiring N key scan data. The key scan circuit performs an XOR operation on the N key scan data to generate a current key scan data. The storage unit is connected to the key scan circuit for receiving the current key scan data and storing the current key scan data as a previous key scan data. The comparator unit is connected to the key scan circuit and the storage unit for comparing the current key scan data with the previous key scan data. When the current key scan data is different from the previous key scan data, the comparator unit generates a wakeup signal.

Abstract: An optical identification module device has a light pipe integrally formed with transparent material, a lens holder, a lens, a sensing circuit board and a light emitting diode. A light source container and a guiding recess are arranged on one side of the light pipe. A first light channel is defined in the light pipe. An engaging bump and a separating bump aligned with the engaging bump are arranged on one side of the lens holder. The engaging bump engages with the guiding recess. A second light channel corresponding to the first light channel is defined in the lens holder, and the lens is arranged in the second light channel. The sensing circuit board with a receiver soldered at a position corresponding to the second light channel is arranged at the bottom of the lens holder. The light emitting diode is placed in the light source container.

Abstract: A two-dimensional optical identification device for a quick decoding operation in a same gray level and decoding method applied to the same. The two-dimensional optical identification device has at least one two-dimensional optical identification with the same gray level. The two-dimensional optical identification has a first positioning block, a plurality of data blocks, and a second positioning block. The first positioning block has a plurality of first positioning points. The data blocks are placed around the first positioning block. The second positioning block has a plurality of second positioning points and a second direction identification point for providing the direction of the two-dimensional optical identification, and the second positioning block is placed at each boundary of the plurality of data blocks for defining the positions of the plurality of data blocks. The second direction identification point indicates an identification direction of the two-dimensional optical identification.

Abstract: An audible post-it system includes a post-it note printed with an index and an optical reading and recording device having an optical module, a switch, a storage device, an audio recording device, an audio playing device and a processor. The optical reading and recording device reads an image of the index. When the optical reading and recording device is at a recoding state, the processor receives the image of the index and obtains the index, then receives a digital audio outputted by the audio recording device to match the index with the digital audio, and stores the digital audio based on the index. When the optical reading and recording device is at a playing state, the processor receives the image of an index and retrieves the index, then reads a digital audio based on the index, and sends the digital audio to the audio playing device for playing.

Abstract: The present invention relates to audio amplifier and a method for protecting the audio amplifier. The audio amplifier includes a pre-amp circuit, an output stage power amplifier, a temperature detector and a gain adjusting circuit. The pre-amp circuit receives an audio signal for amplifying the audio signal to generate an amplified audio signal. The output stage power amplifier receives the amplified audio signal to drive a load. The temperature detector is used for detecting a temperature of the output stage power amplifier to output a temperature signal. The gain adjusting circuit adjusts amplitude of the amplified audio signal of the pre-amp circuit according to the temperature signal.

Abstract: The invention relates to a power saving method in a sleep mode and a keyboard controller using the same. The method is adapted for a triangular-type scan keyboard controller including a plurality of input/output (I/O) pins. The method includes the steps of: providing a first clock source and a second clock source, wherein the frequency of the second clock source is much lower than the frequency of the first clock source. In a normal mode, a scan pulse is sequentially outputted from the I/O pins according to the frequency of the first clock source. In a sleep mode, the scan pulse is sequentially outputted from the I/O pins according to the frequency of the second clock source. When a specific one of the I/O pins outputs the scan pulse, the other I/O pins are used for detecting.

Abstract: The invention relates to an electronic candle and an electronic night lamp. The electronic candle includes a light-emitting diode (LED), a capacitor and a control circuit. The capacitor has a first terminal coupled to a first terminal of the LED, and a second terminal coupled to a common voltage. The control circuit has a first control terminal coupled to the first terminal of the LED, and a second control terminal coupled to a second terminal of the LED. In a detecting period, the control circuit provides a preset voltage across the first and second terminals of the LED so that the LED is reversely biased for a preset time. Then, the first control terminal of the control circuit is set to high impedance. Next, the control circuit detects a variation of a voltage of the first terminal of the capacitor with respect to time to determine whether to light up the LED.

Abstract: The present invention relates to an information input panel using the light emitted diode (LED) matrix. The panel includes the LED matrix and a control circuit. The LED matrix includes N×M LEDs. The control circuit includes N first terminals and M second terminals, wherein the ith first terminal thereof is coupled to first terminals of the LEDs in the ith row and the jth second terminal thereof is coupled to second terminals of the LEDs in the jth column. In the kth detecting period, the control circuit detects the reverse photoelectric currents of each LED from the second terminals through the kth first terminal to determine whether LED in the kth row is lighted up or not, wherein “M”, “N”, “i”, “j”, “k” are nature numbers and 0<i<=M; 0<j<=N; 0<k<=M.

Abstract: A two-dimensional optical identification device for a quick decoding operation in a same gray level and decoding method applied to the same. The two-dimensional optical identification device has at least one two-dimensional optical identification with the same gray level. The two-dimensional optical identification has a first positioning block, a plurality of data blocks, and a second positioning block. The first positioning block has a plurality of first positioning points. The data blocks are placed around the first positioning block. The second positioning block has a plurality of second positioning points and a second direction identification point for providing the direction of the two-dimensional optical identification, and the second positioning block is placed at each boundary of the plurality of data blocks for defining the positions of the plurality of data blocks. The second direction identification point indicates an identification direction of the two-dimensional optical identification.

Abstract: On a two-dimensional optical identification device with same gray level, a plurality of two-dimensional optical identification codes are arranged, each having a plurality of data blocks and an outer positioning block. Each data block has a plurality of defined patterns, and each defined pattern is located in one of virtual areas produced by equally dividing the data block. The outer positioning block has a plurality of first positioning points and a first direction identification point, and is placed at two adjacent boundaries of the plurality of data blocks for defining the positions of the plurality of data blocks. A fixed position data block is selected as a data block coding indication block for indicating the coding of the other data blocks.

Abstract: An optical identification module device has a light pipe integrally formed with transparent material, a lens holder, a lens, a sensing circuit board and a light emitting diode. A light source container and a guiding recess are arranged on one side of the light pipe. A first light channel is defined in the light pipe. An engaging bump and a separating bump aligned with the engaging bump are arranged on one side of the lens holder. The engaging bump engages with the guiding recess. A second light channel corresponding to the first light channel is defined in the lens holder, and the lens is arranged in the second light channel. The sensing circuit board with a receiver soldered at a position corresponding to the second light channel is arranged at the bottom of the lens holder. The light emitting diode is placed in the light source container.

Abstract: An infrared positioning apparatus comprises a plurality of infrared diodes, a plurality of amplifying units, a plurality of converting units and a positioning unit. The plurality of infrared diodes is configured to detect at least one infrared signal. The plurality of amplifying units are configured to amplify the at least one infrared signal for obtaining at least one amplified signal. The plurality of converting units are configured to convert the at least one amplified signal for obtaining at least one strength value of the at least one amplified signal. The positioning unit is configured to obtain the emitting direction of the at least one infrared signal in accordance with the at least one strength value of the at least one amplified signal.