依据屏幕的输入阻抗校正驱动电压的显示控制电路及方法

The display control circuit includes one conversion circuit to convert display data into display drive voltage. The conversion circuit contains one current mirror circuit for converting the display data into output current in certain ratio to the reference current, and the output current is fed to screen to produce corresponding display drive voltage. One voltage correcting circuit is used to regulate output current according to the display drive voltage and one certain display drive voltage correcting current ratio, so as to make the display drive voltage approach preset display drive voltage.

Single chip capable of being connected with outer bridge circuit to expand function

可外接桥接电路以扩充功能的单芯片

The single chip includes one processor, one high speed bridging circuit, and one expanding port. The expanding port is used in connecting one low speed bridging circuit optionally to expand the function of built-in low speed bridging circuit inside the chip.

Voice control apparatus and method

A voice control device and method is provided. The voice control device is logged-in an application software based on a voice signal of a user, and is connected to a cipher database storing a plurality of account cipher data. The voice control device comprises a voice processing module, a starting module, a first receiving module, an identity recognition module, a selecting module and a logging-in module. The voice processing module judges the meaning of the voice signal; the starting module starts an application software corresponding to the meaning; the first receiving module receives biological character data of the user; the identity recognition module judges whether the user is legal according to the biological character data; the selecting module selects the cipher data of a logging-in account from the account cipher data based on the biological character data and the meaning; the logging-in module logs-in the application software based on the logging-in account cipher data.

Deivce and method for processing covered picture to become transparent one

A device and method for processing the covered picture to make it transparent is disclosed, which can be used for a digital image processor whose memory contains the displayed pixed data of a pictureand the pixel data of several covered pictures, and a display. The said device is composed of a screen controller, several covered picture processing engines, a transparency processing engine and a D/A converter. The said method includes reading the displayed pixel data of the picture and the data about the first pixel point and the secnod group of pixel point of covered pictures, transparency processing to obtain the third pixel point data, and display it in the covered region of picture.

Method for selecting data processing path and graphics processing unit using method

Image data receiving and writing-in method

The image data receiving and writing in method is used in computer system. The computer system includes a kernel logic module, a drawing accelerator, a system memory and an image data output device. The method includes the following steps: the kernel logic module to receive the image data output by image data output device; to write the image data directly into a specific block in the system memory for the drawing accelerator to access directly.

Method for selecting data processing path and graphics processing unit using method

The system includes the central processing unit. The graphic processor includes the conversion and polishing engines and the path selection unit. The application program is executed in the system. The selection method includes the following steps. The path selection unit receives the several vertexes data generated by the said application program and detects the utilization rate of the central processing unit. Whether the vertexes data are sent to the central processing unit to the conversion and polishing engines to carry out the processing, based on the magnitude of the utilization rate of the central processing unit.