Abstract: A capacitive touch circuit includes a single comparator, a reference voltage control unit, a resistance adjusting unit, a delay unit, and a relaxation oscillation control unit. The comparator has a first input terminal, a second input terminal, and an output terminal. The reference voltage control unit is electrically connected to the second input terminal and includes a high level voltage source, a low level voltage source, and a voltage switching controller. The voltage switching controller electrically connects either the high level voltage source or the low level voltage source to the second input terminal of the single comparator according to an output signal of the single comparator. The relaxation oscillation control unit is electrically connected to the resistance adjusting unit, the delay unit, and the reference voltage control unit.

Abstract: An image surveillance system, an image capturing apparatus, and a multimedia apparatus are provided. The image surveillance system includes an image capturing module, a first digital modulating module, a second digital modulating module, and a multimedia module. The image capturing module produces an image signal. The first digital modulating module includes a first digital modulator and a first analog-to-digital/digital-to-analog (AD/DA) converter to receive the image signal and modulate the same into a digital stream. The second digital modulating module includes a second digital modulator and a second AD/DA converter and is connected to the first AD/DA converter through a coaxial cable. The second digital modulator receives the digital stream and modulates the digital stream into image data. The multimedia module is electrically connected to the second digital modulating module and receives the image data.

Abstract: An image processing method of noise reduction and an apparatus thereof are disclosed herein. In the image processing method, a current image having a plurality of image blocks is provided. A first block of the image blocks of the current image is substrate by the first block of at least one previous image for obtaining a difference block. Next, the difference block is performed on a motion detection process for determining whether the first block of the current image is in a static state. When the first block of the current image is in the static state, the first block of the current image is performed on a temporal filtering process for reducing the noise. By analyzing the static state, occurrence of motion blur can be prevented.

Abstract: The invention discloses a memory management system and a memory management method are disclosed. The memory management system includes a first memory, at least one secondary memory, and a memory management device. The first memory includes a normal access memory bank and at least one switching access memory bank. The secondary memory includes at least one secondary access memory bank corresponding to the switching access memory bank. The memory management device reads/writes the normal access memory bank or the secondary access memory bank.

Abstract: A method for transferring image data by using an interface with at least two transfer pipes to transfer from an image accessing unit to a computer is disclosed. The method includes: obtaining image data in response to a control command from the computer; converting the image data to sampled structure data and transferring the sampled structure data to the computer through at least one of the data transfer pipes; and providing information to the computer to recover the received sampled structure data.

Abstract: An optical touch module and a data loading method thereof are provided. The optical touch module includes a first system-on-chip (SoC), a second SoC and a storage element. The first and the second SoCs are electrically connected to each other and disposed around a touch region of a substrate. The first and the second SoCs each include an image sensor for sensing an image of the touch region. The storage element is electrically connected to the first SoC. The first SoC reads first data and second data stored in the storage element and transmits the second data to the second SoC. The first and the second SoCs respectively process the image of the touch region according to the first data and the second data.

Abstract: A tone detection device for detecting whether an input signal having a tone. The device includes a volume gain calculation unit performing a volume gain treatment on frame data and outputting the volume-gain-treated frame data and energy in time domain thereof, a threshold calculation unit calculating a threshold value on the basis of the energy of the volume-gain-treated frame data, a filter transforming the volume-gain-treated frame data by an algorithm and outputting a characteristic value in a first period, and a comparator comparing the first characteristic value and the threshold value to generate a result and determining the frame data of the input signal has the tone on the basis of the result.

Abstract: An optical touch-sensing display module including a liquid crystal display (LCD) module and at least two optical touch-sensing units is disclosed. The LCD module has a display surface and a side surface at periphery of the display surface. The LCD module includes a frame disposed at periphery of the display surface and the side surface. The frame has an opening for exposing the display surface. The optical touch-sensing units are disposed between the frame, the display surface and the side surface and define a sensing space upon the display surface. Each of the optical touch-sensing units has a sensing window facing to the sensing space, and senses an object in the sensing space through the sensing window.

Abstract: The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

Abstract: The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

Abstract: An optical touch-sensing display including a display device, at least three light guides, at least two optical touch-sensing devices and a transmission interface is provided. The display device has a display surface and a sensing space upon the display surface. Each of the light guides disposed at periphery of the display surface has two light incident surfaces and a light-emitting surface there between. Each of the optical touch-sensing devices disposed outside of the display surface includes a sensing module and a light source. When an object enters the sensing space, each sensing module senses a light variation induced by the object to generate a first signal, and then the first signals are transmitted to one sensing module and processed to a second signal, and then the second signal is output from the optical touch-sensing device through the transmission interface.

Abstract: The invention proposes a simple method suitable for automatically locking frequency during USB data communication. Based on the soft plug/unplug concept proposed in the contents and the error handling mechanism defined in the USB specification, we can calibrate the clock frequency of the digitally controlled oscillator (DCO), through the token packets, to be within the acceptable frequency when USB device is attached to the host controller.

Abstract: A touch screen including a display, at least two touch units and a control unit is provided. The display has a displaying surface. The touch units are disposed beside the displaying surface. Each of the touch units includes a light source and an image sensor. The light source is adapted to emit a light beam toward a sensible space in front of the displaying surface. The image sensor is adapted to capture the bright spot in the sensible space, and generate an image signal. The control unit is electrically connected to the light sources and the image sensors. The control unit is adapted to receive the image signals from the image sensors, and determine the position of the bright spot relative to the displaying surface according to the image signals. A touch module and a control method are also provided.

Abstract: A command generation method is suitable for a computer. First, a human body image is captured by an image capturing device in a two-dimensional image form. Then, the shape of the human body image is determined in two-dimensional image recognition for obtaining a determined result. A command is generated according to the determined result.

Abstract: A DMA system includes at lease one read bus, at least one write bus, at least one buffer memory bus, and a DMA controller. The DMA controller comprises a plurality of channels and a bus arbiter. The channels are electrically connected to the read bus, the write bus, and the buffer memory bus. A source address and a destination address of data for each channel are assigned by a control table. The bus arbiter performs bus arbitration and prioritizes data access among the read bus, the write bus, and the buffer memory bus.

Abstract: A graphical indicator provided on the surface of an object to represent index information includes a content part and a header part. The content part is spread with a plurality of micro-units and divided into a plurality of state zones. Each state zone is spread with one micro-unit and equally divided into multiple hypothetical sections. The micro-unit is placed in any of the hypothetical sections to form different candidate states. The header part is spread with a plurality of micro-units that are specifically arranged to provide header information used to recognize the graphical indicator.

Abstract: The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

Abstract: The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

Abstract: The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

Abstract: An image output/input system includes a phase comparator, an image synchronous signal generator, a sensor timing generator, a sensor, an image/color processing unit, and a video encoder. The phase comparator receives a digital signal and a vertical synchronous signal and compares their period and phase to generate a clock correction signal. The image synchronous signal generator receives the clock correction signal and adjusts a subsequent period of the vertical synchronous signal according to the clock correction signal. The sensor timing generator receives the vertical synchronous signal and generates the sensor control timing, and the sensor receives the sensor control timing and generates raw image data. The image/color processing unit receives the raw image data and deals with the image and color process of the raw image data to generate target image data. The video encoder receives the vertical synchronous signal and the target image data and encodes them to generate analog encoded image data.