| GENERALPLUS TECHNOLOGY INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120086508 | CIRCUIT FOR THERMAL PROTECTION IN AUDIO POWER AMPLIFIER AND METHOD THEREOF - 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. | 04-12-2012 |
| 20120004917 | Audible post-it system - 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. | 01-05-2012 |
| 20120001739 | Custom code setting system of a remote control chip - In a custom code setting system of a remote control chip, M keyboard input/output pins are connected to an external keyboard to receive the input of the external keyboard. A first pin is connected to one terminal of an external resistor, while the other terminal of the external resistor is connected to ground, wherein there are N resistance values selectable for the external resistor. A resistance detecting unit is connected to the first resistor to detect the resistance of the first resistor. A second pin is connected to one of the M keyboard input/output pins for setting a custom code. When power on reset occurs, a control logic receives the resistance from the resistance detecting unit, and one of the N×M custom codes is determined according to connection between the second pin and one of the M keyboard input/output pins. | 01-05-2012 |
| 20110079717 | INFRARED POSITIONING APPARATUS AND SYSTEM THEREOF - 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. | 04-07-2011 |
| 20100310012 | METHODS AND APPARATUSES FOR ADAPTIVE CLOCK RECONSTRUCTION AND DECODING IN AUDIO FREQUENCY COMMUNICATION - 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. | 12-09-2010 |
| 20080204122 | Circuit for eliminating pop sounds at power on and off by a moderate waveform - A circuit for eliminating pop sounds at power on and off by a moderate waveform, which includes a switch, a feedback network, an operational amplifier and an output network. When power-on, a first input terminal of the switch is connected to a low voltage, and an output terminal of the output network provides an operating DC bias which is gradually increased. When power-off, the first input terminal of the switch is connected to a reference voltage, and the output terminal of the output network provides an operating DC bias which is gradually reduced. | 08-28-2008 |
