公开(公告)号：US06911927B2

公开(公告)日：2005-06-28

申请号：US10310323

申请日：2002-12-05

Applicant: Wen-Chi Wang ,  Shih-Yu Ku ,  Jui-Cheng Huang ,  Yi-Shu Chang

Inventor： Wen-Chi Wang ,  Shih-Yu Ku ,  Jui-Cheng Huang ,  Yi-Shu Chang

IPC: H03M3/00

CPC classification number: H03M3/50

Abstract: The present invention offers an over-sampling digital-to-analog converter with variable sampling frequencies to process input signals of variable sampling frequencies. The over-sampling digital-to-analog converter comprises an expander, which expands said input signals with a fixed rate of M to produce over-sampling signals; a digital low-pass filter, which filters out high-frequency ingredients of over-sampling signals and then outputs data with a first rate; a data buffer, which receives the outputted data by said digital low-pass filter with the first rate and outputs the data with a second rate; a modulator, which reads data in said data buffer with the second rate and modulates the data; a digital-to-analog converter, which converts the modulated data to analog signals; and an analog low-pass filter, which filters out high-frequency ingredients of said analog signals for producing output signals. No matter how the sampling frequency of the input signals is, due to reading rates of the modulator are the same, the over-sampling digital-to-analog converter ensures that noise is mostly distributed in the high-frequency band.

Abstract translation: 本发明提供具有可变采样频率的过采样数模转换器来处理可变采样频率的输入信号。 过采样数模转换器包括扩展器，其以固定速率M扩展所述输入信号以产生过采样信号; 数字低通滤波器，滤除过采样信号的高频成分，然后以第一速率输出数据; 数据缓冲器，其以所述第一速率由所述数字低通滤波器接收输出的数据，并以第二速率输出数据; 调制器，以第二速率读取所述数据缓冲器中的数据并调制数据; 数模转换器，其将调制数据转换为模拟信号; 以及模拟低通滤波器，其滤除所述模拟信号的高频成分以产生输出信号。 无论输入信号的采样频率如何，由于调制器的读取速率相同，过采样数模转换器可确保噪声主要分布在高频段。

公开(公告)号：US20070208914A1

公开(公告)日：2007-09-06

申请号：US11682540

申请日：2007-03-06

Applicant: Sen-Huang Tang ,  Yi-Shu Chang ,  Yu-Zoung Chou ,  Chien-Hua Hsieh

Inventor： Sen-Huang Tang ,  Yi-Shu Chang ,  Yu-Zoung Chou ,  Chien-Hua Hsieh

IPC: G06F13/00

CPC classification number: G06F13/4022

Abstract: A memory access apparatus is disclosed. The apparatus comprising: a memory access module, having a first interface and a second interface; a first bus, coupled to the first interface; a first memory, coupled to the first bus, for storing a first data; a second bus, coupled to the second interface; and a second memory, coupled to the second bus, for storing a second data; wherein said memory access module accesses said first memory or said second memory or both according to the using statuses of said first bus and said second bus.

Abstract translation: 公开了一种存储器访问装置。 该装置包括：具有第一接口和第二接口的存储器访问模块; 第一个总线，耦合到第一个接口; 第一存储器，耦合到第一总线，用于存储第一数据; 第二总线，耦合到第二接口; 以及耦合到所述第二总线的用于存储第二数据的第二存储器; 其中所述存储器访问模块根据所述第一总线和所述第二总线的使用状态访问所述第一存储器或所述第二存储器或两者。

公开(公告)号：US07181028B2

公开(公告)日：2007-02-20

申请号：US10103303

申请日：2002-03-21

Applicant: Shih-Yu Ku ,  Wen-Chi Wang ,  Yi-Shu Chang ,  Chao-Cheng Lee

Inventor： Shih-Yu Ku ,  Wen-Chi Wang ,  Yi-Shu Chang ,  Chao-Cheng Lee

IPC: H03G7/00 ,  H04B15/00

CPC classification number: H03G3/00

Abstract: An audio converting device including a digital high-pass filter, an expander, a digital low-pass filter, a delta-sigma modulator, a digital-to-analog converter, an analog low-pass filter and a gain control unit is provided. The digital high-pass filter in this invention can filter out a direct-current component of digital audio data such that the production of noise is avoided when the volume is adjusted by users.

Abstract translation: 提供了包括数字高通滤波器，扩展器，数字低通滤波器，Δ-Σ调制器，数模转换器，模拟低通滤波器和增益控制单元的音频转换装置。 本发明的数字高通滤波器可以滤除数字音频数据的直流分量，使得当用户调节音量时避免产生噪声。

公开(公告)号：US20060098948A1

公开(公告)日：2006-05-11

申请号：US11164066

申请日：2005-11-09

Applicant: Cheng-Shun Liao ,  Chia-Pei Chang ,  Yi-Shu Chang ,  Ming-Chun Chang

Inventor： Cheng-Shun Liao ,  Chia-Pei Chang ,  Yi-Shu Chang ,  Ming-Chun Chang

IPC: H04N5/781

CPC classification number: H04N21/4884 ,  H04N5/44504 ,  H04N9/641 ,  H04N21/23614 ,  H04N21/4348

Abstract: A video processing apparatus includes: a line-based data encoder for performing line-based data encoding on an input signal to generate a line-based data encoded signal; and a video signal controller coupled to the line-based data encoder for receiving a first video signal and the line-based data encoded signal, decoding the line-based data encoded signal to generate a second video signal, and choosing one of the first and second video signals to generate an output signal.

Abstract translation: 视频处理装置包括：基于行的数据编码器，用于对输入信号执行基于行的数据编码，以生成基于行的数据编码信号; 以及视频信号控制器，其耦合到所述基于线路的数据编码器，用于接收第一视频信号和所述基于行的数据编码信号，对所述基于线的数据编码信号进行解码以产生第二视频信号，以及选择所述第一和 第二视频信号以产生输出信号。

公开(公告)号：US20060080564A1

公开(公告)日：2006-04-13

申请号：US10711442

申请日：2004-09-19

Applicant: Yi-Shu Chang ,  Seng-Huang Tang

Inventor： Yi-Shu Chang ,  Seng-Huang Tang

IPC: G06F1/12

CPC classification number: G11B20/10009 ,  G11B20/10481

Abstract: The present invention provides a method and apparatus for performing read phase auto-calibration of a storage device. The method includes writing the data with at least one predetermined pattern into the storage device, reading the data according to a read phase of a plurality of read phases, comparing the predetermined pattern with the data, and selecting a read phase from the plurality of read phases according to the comparing result.

Abstract translation: 本发明提供一种用于执行存储装置的读取相位自动校准的方法和装置。 该方法包括将至少一个预定模式的数据写入存储装置，根据多个读取相位的读取相位读取数据，将预定模式与数据进行比较，以及从多个读取中选择读取相位 根据比较结果进行相位分析。

公开(公告)号：US20060078227A1

公开(公告)日：2006-04-13

申请号：US11162575

申请日：2005-09-15

Applicant: Yi-Shu Chang ,  Zou-Ping Chen ,  Tsung-Chi Lin ,  Cheng-Shun Liao

Inventor： Yi-Shu Chang ,  Zou-Ping Chen ,  Tsung-Chi Lin ,  Cheng-Shun Liao

IPC: G06K9/32

CPC classification number: G06T3/4015

Abstract: An image scaling method for calculating a pixel value of a target pixel within a scaled image block is disclosed. The method includes selecting a plurality of reference pixels from the image block, wherein each reference pixel has a pixel value and corresponds to a transparency parameter; respectively setting a corresponding weight value for each reference pixel; adjusting the weight values according to the transparency parameters of the reference pixels; and blending the pixel values of the reference pixels to generate the pixel value of the target pixel according to the adjusted weight values of the reference pixels.

Abstract translation: 公开了一种用于计算缩放图像块内的目标像素的像素值的图像缩放方法。 该方法包括从图像块中选择多个参考像素，其中每个参考像素具有像素值并对应于透明度参数; 分别为每个参考像素设置相应的权重值; 根据参考像素的透明度参数调整权重值; 以及混合参考像素的像素值，以根据所调整的参考像素的权重值来生成目标像素的像素值。

公开(公告)号：US20050156650A1

公开(公告)日：2005-07-21

申请号：US11035088

申请日：2005-01-13

Applicant: Sen-Huang Tang ,  Yi-Shu Chang

Inventor： Sen-Huang Tang ,  Yi-Shu Chang

IPC: G06F1/04

CPC classification number: G06F1/04

Abstract: The invention is related to a method and an apparatus for generating an output clock. The method comprises: measuring a reference clock according to a free-run clock to produce a counter signal in a normal mode; suspending the reference clock; and generating the output clock according to the counter signal and the free-run clock in a power-saving mode.

Abstract translation: 本发明涉及一种用于产生输出时钟的方法和装置。 该方法包括：根据自由运行时钟测量参考时钟以产生正常模式的计数器信号; 暂停参考时钟; 以及在省电模式下根据计数器信号和自由运行时钟产生输出时钟。

公开(公告)号：US20050129131A1

公开(公告)日：2005-06-16

申请号：US10904777

申请日：2004-11-29

Applicant: Yi-Shu Chang ,  Chao-Chih Huang

Inventor： Yi-Shu Chang ,  Chao-Chih Huang

IPC: H04N5/91 ,  H04N7/12 ,  H04N7/26

CPC classification number: H04N19/423

Abstract: A memory storage method for improving efficiency of image processing. The method includes: storing a plurality of first blocks corresponding to a first picture region of a picture into a first storage region of a memory, storing a plurality of second blocks corresponding to a second picture region of the picture into a second storage region of the memory, and storing at least one second block corresponding to a part of the second picture region adjacent to the first picture region into the first storage region.

Abstract translation: 一种用于提高图像处理效率的存储器存储方法。 该方法包括：将与图像的第一图像区域对应的多个第一块存储到存储器的第一存储区域中，将与图像的第二图像区域相对应的多个第二块存储到存储器的第二存储区域中 存储器，并将与第一图像区域相邻的第二图像区域的一部分对应的至少一个第二块存储到第一存储区域中。

公开(公告)号：US20050017771A1

公开(公告)日：2005-01-27

申请号：US10896118

申请日：2004-07-22

Applicant: Wen-Shiung Weng ,  Ming-Chun Chang ,  Chi-Kung Kuan ,  Yi-Shu Chang ,  Kuo-Lin Tai

Inventor： Wen-Shiung Weng ,  Ming-Chun Chang ,  Chi-Kung Kuan ,  Yi-Shu Chang ,  Kuo-Lin Tai

IPC: G06F1/10 ,  H03L7/00

CPC classification number: G06F1/10 ,  H03L7/00

Abstract: A signal generator for generating a clock with lower jitter. The signal generator includes a multi-phase clock generator for generating a plurality of multi-phase reference clocks with same frequency, a multiplexer for selecting one reference clock as an output clock according to a phase selecting signal, a phase-swallow control unit having a comparator for comparing a swallow value with a reference value out of order and outputting the comparing result as a swallow control signal, and a clock selector for receiving the swallow control signal and generating the phase selecting signal. Because the reference value is provided by a counter in bit-reversed, the swallow control signal is dispersed smoothly and the jitter of the output clock is reduced.

Abstract translation: 用于产生具有较低抖动的时钟的信号发生器。 信号发生器包括用于产生具有相同频率的多个多相参考时钟的多相时钟发生器，用于根据相位选择信号选择一个参考时钟作为输出时钟的多路复用器，具有相位选择信号的相位控制单元 比较器，用于将吞咽值与参考值进行比较，并输出比较结果作为吞咽控制信号;以及时钟选择器，用于接收吞咽控制信号并产生相位选择信号。 由于参考值由位反转的计数器提供，所以吞咽控制信号平滑地分散，并且输出时钟的抖动减小。

公开(公告)号：US20120327078A1

公开(公告)日：2012-12-27

申请号：US13529527

申请日：2012-06-21

Applicant: Wen-Tsai LIAO ,  Yi-Shu Chang ,  Hsu-Jung Tung

Inventor： Wen-Tsai LIAO ,  Yi-Shu Chang ,  Hsu-Jung Tung

IPC: G06T15/00

CPC classification number: G06T7/593 ,  G06T7/579 ,  G06T2207/10021 ,  H04N13/128 ,  H04N2013/0081

Abstract: A 3D image rendering apparatus is disclosed including: an image motion detector for detecting temporal image motion of a target image object in a first left-eye image or a first right-eye image to generate a temporal motion vector, and for performing image motion detection on the first left-eye image and the first right-eye image to generate a spatial motion vector for the target image object; a depth generator for generating a depth value for the target image object based on the temporal motion vector and the spatial motion vector; an command receiving device for receiving a depth adjusting command; and an image rendering device for adjusting the image position of at least part of image objects in the first left-eye image and the first right-eye image to render a second left-eye image and a second right-eye image.

Abstract translation: 公开了一种3D图像渲染装置，包括：图像运动检测器，用于检测第一左眼图像或第一右眼图像中的目标图像对象的时间图像运动，以产生时间运动矢量，并用于执行图像运动检测 在所述第一左眼图像和所述第一右眼图像上生成所述目标图像对象的空间运动矢量; 深度发生器，用于基于时间运动矢量和空间运动矢量生成目标图像对象的深度值; 用于接收深度调整命令的命令接收装置; 以及图像渲染装置，用于调整第一左眼图像和第一右眼图像中的图像对象的至少一部分的图像位置，以呈现第二左眼图像和第二右眼图像。