Primax Electronics Ltd.

Destiny Technology Corporation

Che-Sheng Lin

Ching-Lung Mao

Ching Lung Mao

An interpolation system and method is applicable to image process of data size change. The characteristics of the interpolation system are that some simple operations in the system and method are operated by hardware (operator), while some complicated operations are processed by software. Though the demarcation, the hardware for performing interpolation is prevented from complicated composition so as to reduce the cost and the time needed.

Interpolation system and method

A method of photo/text separation using path frequency of pixel intensities is disclosed. It divides an original image into n*n pixel blocks and records the path conditions satisfied by the intensities of consecutive two pixels. From the statistical analysis of the path appearance frequency, the method determines the text/photo types in the pixel block, thereby determining the output type of the whole original image.

Method of photo/text separation using path frequency of pixel intensities

A method of compressing and decompressing images is disclosed for applications in compression and decompression chips with the JBIG standard. The pipeline of computing a pixel is divided into three parts: memory access, numerical operations, renormalization and byteout/bytein. Each steps takes a work cycle; therefore, three pixels are processed in parallel at the same time. In comparison, the work cycle of the prior art without pipeline improvement is longer. This method can effectively shorten the work cycle of each image data process, increasing the speed of compressing and decompressing image data.

Method of compressing and decompressing images

A circuit design method to control access pointers of different memory used to transfer the data buffer of printers. The proposed control signal circuit employs a read control signal circuit and a write control signal circuit to receive and send m+n-bit control signals, respectively, to control the access pointers of a memory with 2*2-register to perform buffer transfer in printers. The disclosed method is able to solve the problem that only one memory block is accessible in sequential mode before. In addition, the method is able to use all memory blocks in buffer transfer in sequential mode to increases the efficiency of data buffering when printing.

Growing community of inventors

Taipei, Taiwan

Che-Sheng Lin