Abstract: A system for implementing an intelligent sleep mode in a TV includes an audio amplifier (20), a digital signal processor (DSP) (11), and a timer (12), a pulse width modulation (PWM) output port (13) and a low-voltage differential signaling (LVDS) output port (14) all of which are connected to the DSP. Each time the intelligent sleep mode is started, the timer times an elapsed time during which no button signal is received by the DSP. When the elapsed time reaches a preset sleep mode time, the DSP decreases the volume of the TV through the PWM output port, and decreases the brightness of the TV through the LVDS output port. If the brightness and volume of the TV have been decreased in all of preset phases, and still no button signal is received, the DSP automatically shuts off the TV. A related method is also provided.

Abstract: An apparatus for adjusting sound volume for an audio system includes a controller (101) connected to an amplifier (40) of the audio system, an audio processor (104), a circuit (102) for adjusting sound volume, and a communication port (103). The controller controls the amplification of the amplifier through the communication port. The circuit includes an adjustor (1022) connected to the audio processor, and a switch (1024) coupled to the audio processor. The controller controls the switch to switch an operating mode of the circuit between a normal mode and an attenuation mode. The adjustor is coupled to the switch. In the normal mode, the switch directly transmits unadjusted audio signals to the audio processor. In the attenuation mode, the audio processor controls the adjustor to output unadjusted audio signals or attenuated audio signals. A related method for adjusting sound volume for an audio system is also disclosed.

Abstract: A status indicator and status indicating method are provided to indicate multi-working statuses of an electronic device with a single status indicator. The status indicator includes an MCU (10, 10?), and an LED circuit. The MCU includes a CPU (101), a ROM (103), a RAM (105), a counter (107, 107?) and an output port (111, 111?). In a first embodiment, the MCU further includes a PWM register (109). The CPU detects a current working status, and controls the PWM output port to output corresponding PWM waves via the PWM register according to the first embodiment, and executes an interrupt service routine stored in the ROM, thereby outputs corresponding PWM waves via the output port according to a second embodiment. The PWM waves are delivered to the LED circuit to make the LED indicate the current working status.

Abstract: An apparatus (10) for adjusting sound volume for an audio system includes a controller (101) connected to an amplifier (40) of the audio system for controlling amplification of the amplifier, and a first circuit (102) for adjusting the sound volume. The controller includes a microprogrammed control unit (1010), a random-access memory (1012), and an electrically erasable programmable read-only memory (1014). The first circuit includes an attenuation circuit (1022) connected to a tuner (20) of the audio system for attenuating input audio signals, and a switch (1024). An input end of the switch is connected to the tuner, an output end of the attenuation circuit and the microprogrammed control unit; and an output end of the switch is connected to an audio processor (30). The apparatus enables a user to freely adjust an average level of sound produced by the audio system, and simultaneously avoid being bothered by loud transmissions.

Abstract: A system for avoiding eye and bodily injury from using a display device comprises: a storage unit for storing a first program and a second program; a timer for respectively measuring corresponding running time of the programs; a counter for counting a continuous running count of the first program; a control unit for running the programs stored in the storage unit and outputting a control signal; an OSD (On Screen Display) component for receiving the control signal, and outputting OSD data such as a series of dynamic icons for reminding users to blink, and pattern data for reminding users to take exercises; and a display unit for receiving the OSD data to display the dynamic icons, and the pattern data to show a comfort display. A corresponding method is also provided.

Abstract: A CCFL (cold-cathode fluorescent lamp) driving system for digitally driving at least one CCFL, according to embodiments of the present invention, generally includes a transformer, a sense circuit and a CCFL controller. Through the transformer, a DC voltage is supplied to the CCFL load. The sense circuit is provided to sense the current flowing through the CCFL load, and generate a corresponding feedback signal as an input to the CCFL controller. In accordance with embodiments, the CCFL controller is provided to receive a triangular waveform signal and a sinusoidal waveform signal, where the sinusoidal waveform signal has an amplitude regulated by the feedback signal and generate an output signal, corresponding to a comparison of said triangular waveform signal and the amplitude-regulated sinusoidal waveform signal, thus the output signal can be utilized to regulate the voltage delivered to the CCFL load.

Abstract: A system for controlling favorite television channels with a single knob includes a knob (10), a control apparatus (11) and a television tuner (12). The knob can be rotated and pressed, and generates rotation signals and press signals which can be received by the control apparatus. The control apparatus generates channel-tuning signals, and automatically selects and sets favorite channels according to the rotation signals and press signals. The channel-tuning signals include signals that control the television tuner to tune to favorite channels and to non-favorite channels. The television tuner is used for tuning television channels according to the channel-tuning signals. A related method for controlling favorite television channels with a single knob is also disclosed.

Abstract: An apparatus (10) for adjusting sound volume for an audio system includes a controller (101) connected to an amplifier (40) of the audio system for controlling amplification of the amplifier, and a first circuit (102) for adjusting the sound volume. The controller includes a microprogrammed control unit (1010), a random-access memory (1012), and an electrically erasable programmable read-only memory (1014). The first circuit includes an attenuation circuit (1022) connected to a tuner of the audio system for attenuating input audio signals, and a switch (1024). An input end of the switch is connected to the tuner and an output end of the attenuation circuit, and an output end of the switch is connected to an audio processor (30) of the audio system. The apparatus enables a user to freely adjust an average level of sound produced by the audio system, and simultaneously avoid being bothered by loud transmissions.

Abstract: An apparatus for displaying and controlling an OSD menu in an image display device includes a key input unit (10), a control unit (11), an OSD menu generation unit (12), a storage unit (13), an image signal output unit (14), a pre-amplifier (15), an image output unit (16), and a liquid crystal display (LCD) (17). The key input unit is for outputting a command signal for displaying and controlling function control targets in the OSD menu. The control unit is for determining whether to move and adjust the function control targets. The OSD menu generation unit is for outputting OSD image signals. The image signal output unit is for outputting image signals. The pre-amplifier is for converting the image signals and the OSD image signals. The image output unit is for amplifying and outputting the converted signals. The LCD is for displaying the converted signals from the image output unit.

Abstract: A multimedia presentation system includes: a display unit (120) for displaying multimedia information and an On Screen Display (OSD) menu; a control unit (110) including the multifunctional button for receiving a user operation, generating a control signal corresponding to the operation, and transmitting the control signal; and a processing unit for receiving the control signal, and performing corresponding one or more operations for the display unit according to the control signal. The operations include turning on or turning off the display unit, entering the OSD menu, and confirming one or more operations on the OSD menu. A related method implementing the system is also disclosed.

Abstract: A system for controlling volume with a single knob includes: a knob (10) for generating rotation signals; a controlling apparatus (11) for determining a rotational direction and speed of each rotation signal, and generating corresponding volume controlling signals for adjusting volume according to the rotation signals; and an audio amplifier (12) for adjusting volume according to the volume controlling signals. The knob includes a rotational operation part (100) and a rotation signal generating circuit (101). The controlling apparatus includes a number of input ports (110), a timer (111), a counter (112), a ROM (Read Only Memory) (113), a RAM (Random Access Memory) (114), a CPU (Central Processing Unit) (115), a PWM (Pulse Width Modulator) (116), and a number of output ports (117). A related method for controlling volume with a single knob is also disclosed.

Abstract: An apparatus for simultaneously adjusting brightness and contrast of a display includes: a key (1) for receiving a luminance instruction inputted by a user; an SCM (Single Chip Micyoco) (2) for obtaining a luminance value corresponding to the instruction, and for calculating a brightness value and a contrast value according to the obtained luminance value; an AID (Analog/Digital) converter (3) for converting the brightness value and the contrast value into respective voltage pulse signals; a signal amplifier (4) for adjusting the amplitude sizes of the voltage pulse signals, and outputting the voltage pulse signals as LVDS (Low Voltage Differential Signals); a back light controller (5) for receiving the LVDS, and controlling video output of the adjusted brightness and contrast; a display screen (6) for displaying luminance values and images according to the adjusted brightness and the contrast; and a power source (7). A related method is also disclosed.

Abstract: A method for preventing Computer Induced Repetitive Stress Injuries (CRSI) that records operation statistics of the computer and calculates computer user's weighted fatigue level; and will automatically remind user of necessary guiders when the fatigue level reaches predetermined threshold, therefore CRSI is effectively prevented.

Abstract: An astute system for detect to adapt to environment that can be applied to various detection assemblies. Based on the input detection value of different time, this astute system for detect to adapt to environment works out the reference value and several positive and negative standard deviations out of the reference value as upper limit valve and lower limit valve respectively to execute detection as well as automatically adjusts and updates reference value. This system will output a signal once input detection unit value exceeds the preset valve and its time of appearance exceeds the preset first control time. Meanwhile, when the input detection unit value exceeds the preset second control time and has no qualified relative alteration, this system will totally or partially update the reference value and standard derivation to set new valve to perform detection.

Abstract: A mechanism and method to connect to Internet automatically providing at least one card in which there is pre-stored corresponding data to automatically log on predefined target website and open the web page in Internet Explorer. There is also a card reader can hold inserted card and can automatically output the data read from the inserted card. A microcomputer-processing device that has a permanent program, which can display web page of Internet Explorer. When the card is inserted to card reader, it can automatically log on predefined target website and open the web page in Internet Explorer. The permanent program can automatically check at fixed intervals whether the card is still in the card reader. When the data of the card is still being output in a predefined time, the system will retain online mode. Otherwise, if the data of the card ceases to be output in a predefined time, the system will change to offline mode immediately.

Abstract: A unique card application system for the authorized cardholder logs in, no matter it is in transaction or in mere online mode, request signal can be sent and occupies the unique login address corresponding to the card in the card management center, and will refuse any other incoming request signal of other cards for logging in the same login address and dispose correspondingly; the card reader stacker can read and output data of inserted card to the network data processing center intermittently and check in the time login status check device to maintain validity of login, which can avoid refusal of legal re-login of the system in case the card reader stacker is broken down.

Abstract: At the back bottom half of the LCD display there extends a supporting means that has a shaft lever at its free end, an adjusting unit can pivot on the shaft lever via a shaft hole; the adjusting unit has multiple planes and the distance from the virtual center of shaft hole to the edge of each plane of the adjusting unit has at least two different lengths; revolving the adjusting unit to let its different plane osculate the desk or the platform, the included angle of the supporting means and the platform can be changed forwardly or backwardly.

Abstract: A system can be used to automatically judge and select latest activated and input signal that has been accepted by the system as the command of executing a certain operation and therefore be displayed on the sound and/or image display device instead of manual switching when multiple signal providing devices are coupled to share a common sound and/or image display device, when the selected executing signal providing device is interrupted, can automatically switch back to output signal from the former or other predefined signal source, and the system can be combined with manual mode so that user can also select one of the multiple signal providing devices as the executing signal manually.

Abstract: A digital-to-analog conversion method includes outputting one priority bit of a digital signal to a digital output port to produce a respective output signal. An output time for the output signal is obtained by multiplying a unit of time by a weight of coding representing the significance of the bit, to define a period of time of maintaining the signal level at the output port before shifting to a next bit, and repeating the aforesaid steps for the successive bits. The output signal produced can be used to directly drive a power switching means for linear control of a power element, or integrated and filtered to provide a level analog output.

Abstract: An intention identification method, i.e., a method of tracking movement of an object for the purpose of determining intention in order to operate a computer, includes the steps of processing a pattern of an object captured by a video camera and converting the pattern into a plurality of pixels, analyzing a variation trend of the pixels based on variation of the pixels in any direction relative to a preset geometric center, and comparing a quantity representing the direction and moving amount of the pixels to a characteristic curve, the characteristic curve being formed by a non-activate region set with respect to the center of the pixels, and an activate region also set with respect to the center of the pixels and which is larger than the non-activate region.