ISSC TECHNOLOGIES CORP. Patent applications |
Patent application number | Title | Published |
20160095047 | BLUETOOTH LOW ENERGY BEACON DEVICE AND ADVERTISING METHOD - A Bluetooth low energy (BLE) beacon device and a BLE advertising method are provided. The BLE advertising method includes: enabling a broadcast action with different advertising packets simultaneously, wherein the advertising packets include connectable and unconnectable advertising packets; setting advertising time information of the advertising packets; setting advertising data and an advertising packet address code; and executing the broadcast action for the advertising packets in sequence according to the advertising time information and the type of each of the advertising packets. | 03-31-2016 |
20150287419 | SPEAKER APPARATUS AND SPEAKER SYSTEM - The present disclosure illustrates a speaker apparatus and a speaker apparatus system, wherein the speaker apparatus includes a communication unit, an audio codec, a sound unit and a clock unit. The audio codec is coupled to the communication unit. The sound unit is coupled to the audio codec. The clock unit is coupled to the communication unit. The communication unit is configured for wirelessly receiving and broadcasting audio data. The audio codec is configured for decoding the audio data and generating an analog signal according to the decoded audio data. The sound unit is configured for transforming the analog signal into an acoustic wave. The clock unit synchronizes with at least one other speaker apparatuses by a synchronous signal. | 10-08-2015 |
20150108538 | CHIP, ELECTROSTATIC DISCHARGE PROTECTION DEVICE AND FABRICATION THEREOF - An electrostatic discharge protection device is disclosed. The electrostatic discharge protection device comprises a N+ well, a P doping region, a first N doping region, a plurality of N sub-doping regions, a first N+ doping region, a first P+ doping region, a second N+ doping region, and a second doping region. The P doping region is disposed in the N+ well. The first N doping region is disposed in the P doping region. The plurality of N sub-doping regions is disposed in parallel in the P doping region. The first N+ doping region is disposed in the first N doping region. The first P+ doping region is disposed in the first N doping region. The second N+ doping region is disposed in the P doping region. | 04-23-2015 |
20150056916 | BLUE-TOOTH COMMUNICATION SYSTEM AND BROADCASTING METHOD THEREOF - The present invention provides a blue-tooth communication system and broadcasting methods thereof. The broadcasting method includes: firstly, detecting N blue-tooth receivers in a blue-tooth range of a blue-tooth transmitter, wherein N is a positive integer; and broadcasting a data package by the blue-tooth transmitter in a first transmission timing window; then respectively receiving N acknowledgement packages from the blue-tooth receiver by the blue-tooth transmitter in a plurality of reception timing windows. | 02-26-2015 |
20150036725 | MULTI-SYSTEMS INTEGRATED MODULATION MODULE AND COMMUNICATION DEVICE - The present disclosure illustrates a multi-systems integrated modulation module. The modulation module includes a first modulation circuit and a second modulation circuit. The first modulation circuit includes a high frequency oscillator and high frequency mixers. The second modulation circuit includes a low frequency oscillator and low frequency mixers. The second modulation circuit couples to the first modulation circuit. The high frequency mixers couple to the high frequency oscillator and the low frequency mixers couple to the low frequency oscillator. The high frequency mixers and the low frequency mixers provide high frequency signals and low frequency signals separately. The frequency mixers mix radio frequency signals with the high frequency signals or low frequency signals. The modulation module forms a first signal path by the first modulation circuit, and forms a second signal path by the first modulation circuit and the second modulation circuit. | 02-05-2015 |
20140232480 | CLOCK APPARATUS - The invention provides a clock apparatus includes a clock source, a first resistor, a diode, an amplifier, and an oscillator. The current source provides a current, and the current has a first temperature coefficient. The first resistor has a first end, and the first end receives the current. The anode of the diode is coupled to a second end of the first resistor, the cathode of the diode is coupled to a reference ground. The diode has a second temperature coefficient. The amplifier receives a power source. The amplifier generates an output voltage according to the power source and a voltage on the first end of the first resistor. The oscillator receives the output voltage to be an operating power. Wherein, the first and second temperature coefficients are complementary. | 08-21-2014 |
20140167718 | VOLTAGE GENERATOR - A voltage generator is disclosed. The voltage generator includes an operational amplifier, an offset voltage tuner, and an output stage circuit. The operational amplifier receives an input voltage and adjusts an offset voltage of the operating amplifier according to a control signal. The offset voltage tuner provides the control signal. The output stage circuit generates an output voltage according to a voltage on an output terminal of the operational amplifier, and provides the output voltage to the operational amplifier. | 06-19-2014 |
20140140526 | HEADPHONE APPARATUS AND AUDIO DRIVING APPARATUS THEREOF - The present invention provides a headphone apparatus and a headphone driving apparatus thereof The headphone driving apparatus includes a first and second driving circuits, a signal transmitting circuit, a first and second reference signal generators. The first driving circuit receives a first audio signal pair and generates a first driving signal. The second driving circuit receives a second audio signal pair and generates a second driving signal. The signal transmitting circuit transmits the first audio signal pairs or the reference signal to the first output end pair. The signal transmitting circuit decides to transmit the second audio signal pairs to the second output end pair or not according to the mode selecting signal. The second reference signal generator receives signals and generates the second reference signal. Wherein, the first and second reference signal generators are turned off according to the mode selecting signal. | 05-22-2014 |
20140099904 | SWITCHABLE FILTERING CIRCUIT AND THE OPERATION METHOD USING THE SAME - The disclosure provides a switchable filtering circuit and the related operation method, in particular related to a filtering circuit which can be used for Bluetooth system and wireless local area network system. By using a first switch, a hybrid filtering circuit and a second switch, the received mode and transmitted mode between these two systems is realized. Moreover, the frequency responses and the bandwidth adjustments can be controlled according to the plurality of switchable resistors, the plurality of switchable capacitors and the shared and switchable resistors within the hybrid filter circuit. Moreover, the effects of high operated freedom of the circuit and the circuit size reduction can be achieved. | 04-10-2014 |
20140031122 | SYSTEM TO DELIVER PRIORITIZED GAME AUDIO WIRELESSLY WITH A MINIMAL LATENCY - The disclosure relates to a system to deliver prioritized game audio wirelessly with a minimal latency by processing a low-priority game audio (such as background music) and high-priority game audio (such as sound effects) in a wireless gaming system, resulting in a minimal high-priority audio latency. The disclosure can then be used to transmit high quality positional multichannel audio at a minimal wireless bandwidth. | 01-30-2014 |
20140015502 | LOW DROPOUT VOLTAGE REGULATOR AND ELECTRONIC DEVICE THEREOF - A low dropout voltage regulator is provided. The low dropout voltage regulator includes a comparison unit, a buck unit, a feedback unit and a current-drawing unit. The comparison unit is used for receiving a reference voltage and a feedback voltage, and comparing the reference voltage and the feedback voltage to output a first voltage. The buck unit is used for receiving an input voltage and the first voltage and transferring the input voltage to a output voltage. The feedback unit is used for receiving the output voltage, and converting the output voltage to a feedback voltage, and then transmitting the feedback voltage to the comparison unit. The current-drawing unit determines whether to draw a portion of a first current generated by the buck unit, so as to stabilize the output voltage. | 01-16-2014 |
20130336371 | FAST AND ROBUST AGC APPARATUS AND METHOD USING THE SAME - The present invention discloses apparatus and method for fast and robust automatic gain control (AGC). By using the power statistics and/or the amplitude statistics of multiple pairs of signed ADC outputs, the additional gain control can be determined and included in a statistics-aided AGC to successfully complete the AGC function for a received signal having a dynamic range up to 100 dB within a few micro-seconds. | 12-19-2013 |
20130287071 | WIRELESS SIGNAL TRANSCEIVING APPARATUS - A wireless signal transceiving apparatus is provided. The wireless signal transceiving apparatus includes a signal transceiving-end circuit, a transceiving amplify module, an output amplify module, a mixer, a frequency selecting filter, switch modules a first base-band signal transceiver and a second base-band signal transceiver. The transceiving amplify module receives and amplifies a signal from an antenna or the mixer. The output amplify module amplifies the signal from the mixer. The frequency selecting filter filters the signal from the mixer, the first base-band signal transceiver or the second base-band signal transceiver according to the mode selecting signal. The first base-band signal transceiver and the second base-band signal transceiver receive the signal generated by the frequency selecting filter and/or respectively transmit the first and the second base-band output signal. The switch modules turn on or turn off transmission paths for the signal according to the mode selecting signal. | 10-31-2013 |
20130259267 | AUDIO AMPLIFIER APPARATUS - An audio amplifier apparatus for driving a loudspeaker is provided. The audio amplifier apparatus includes a soft charge unit, a first amplification module, and a second amplification module. The soft charge unit is coupled to the loudspeaker through an output terminal and supplies a driving current according to a first control signal to soft charge the loudspeaker, so as to gradually increase a voltage level on the output terminal. The first amplification module receives an audio signal according to the first control signal and amplifies the audio signal to output a first amplified signal for driving the loudspeaker. The second amplification module receives the audio signal according to a second control signal and amplifies the audio signal to output a second amplified signal for driving the loudspeaker. The soft charge unit generates the second control signal by comparing the voltage level on the output terminal with a predetermined voltage level. | 10-03-2013 |
20130154749 | OSCILLATOR FOR GENERATING OUTPUT SIGNAL WITH ADJUSTABLE FREQUENCY - An oscillator is provided and includes a resistance unit, a capacitance unit, a first inverter and a second inverter. The resistance unit is serially connected between a first reference point and a second reference point. The capacitance unit is coupled between the first reference point and an output point, and includes capacitors. One terminal of each of the capacitors is coupled to the output point, and the other terminal of each of the capacitors is coupled to the first reference point or a reference ground according to a control signal. The input terminal of the first inverter is coupled to the first reference point, and the output terminal of the first inverter is coupled to the second reference point. The input terminal of the second inverter is coupled to the output terminal of the first inverter, and the output terminal of the second inverter is coupled to the output point. | 06-20-2013 |
20130154696 | CHARGE PUMP CIRCUIT AND PHASE LOCK LOOP CIRCUIT - A charge pump circuit is provided. The charge pump circuit includes a current driving unit, a current draining unit, a switch, and a voltage splitting circuit. The current driving circuit receives a first control signal to transmit a driving current to the first end or the second end according to the first control signal. The current draining unit receives a second control signal to drain a draining current from the first end or the second end according to the second control signal. The switch is coupled between the first end and the second end, and the switch is turned on or turned off according to a power down control signal. The voltage splitting circuit receives a reference power voltage, and is coupled to the first end. The voltage splitting circuit provides a splitting power to the first end by splitting the voltage of the reference power voltage. | 06-20-2013 |
20110281531 | RADIO COMMUNICATION TRANSCEIVER - A radio communication transceiver includes a transformer, a switch, a power amplifier (AP), and a low noise amplifier (LNA). The transformer has a primary winding and a center-tap secondary winding, the primary winding has a first endpoint and a second endpoint, and the center-tap secondary winding has a first endpoint, a second endpoint, and a third endpoint. The switch has a gate, a drain, and a source, in which the gate receives a control signal (CS), the drain is connected to the second endpoint of the primary winding of the transformer through a coupling capacitor, and the source is grounded. The PA has at least one output terminal connected to the first endpoint and the second endpoint of the center-tap secondary winding of the transformer. The LNA has an input terminal connected to the second endpoint of the primary winding of the transformer. | 11-17-2011 |
20110281527 | RADIO COMMUNICATION TRANSCEIVER - A radio communication transceiver achieving impedance matching when the transceiver operates in an output state and an input state respectively in a manner of switching a switch includes a transformer, a switch, a power amplifier (PA), and a low noise amplifier (LNA). The transformer has a primary winding including a first endpoint and a second endpoint and a secondary winding including a first endpoint and a second endpoint. The switch has a gate, a drain, and a source, wherein the gate receives a control signal, the drain is connected to the second endpoint of the primary winding, and the source is connected to the second endpoint of the secondary winding. The PA has an output terminal connected to the first endpoint of the primary winding of the transformer. The LNA has an input terminal connected to the second endpoint of the primary winding of the transformer. | 11-17-2011 |
20110231186 | SPEECH DETECTION METHOD - A speech detection method is presented, which includes the following steps. A first voice captured device samples a first signal and a second voice captured device samples a second signal. The first voice captured device is closer to a speech signal source than the second voice captured device. A first energy corresponding to the first signal within an interval is calculated, a second energy corresponding to the second signal within the interval is calculated, and a first ratio is calculated according to the first energy and the second energy. The first ratio is transformed into a second ratio. A threshold value is set. It is determined whether the speech signal source is detected by comparing the second ratio and the threshold value. | 09-22-2011 |
20110074343 | WIRELESS COMMUNICATION MODULE - A wireless communication module includes a radiation unit, a battery, and a communication unit. The radiation unit has an antenna and a rectifier, in which the antenna is used to receive a radio frequency (RF) signal, and the rectifier converts the RF signal and outputs a voltage signal. The battery receives the voltage signal, and accordingly stores an electrical energy. The communication unit is electrically connected to the battery, and is powered by the electrical energy. When the wireless communication module is applied to a communication device, the RF signal is used as a source of an electrical power, and as the radiation unit and the communication unit are integrated into a system on chip (SOC), an overall volume of the communication device is effectively reduced. | 03-31-2011 |
20110074335 | WIRELESS COMMUNICATION MODULE - A wireless communication module includes a photoelectric conversion unit, a battery, and a communication unit. The photoelectric conversion unit is used to receive a light source, convert the light source into an electrical energy, and output the electrical energy. The battery is electrically connected to the photoelectric conversion unit, and is used to store the electrical energy. The communication unit is electrically connected to the battery, and is powered by the electrical energy. When the wireless communication module is applied to a communication device, a solar energy source is used as a source of an electrical power, and as the photoelectric conversion unit and the communication unit are integrated into a system on chip (SOC), an overall volume of the communication device is effectively reduced. | 03-31-2011 |