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1. 发明申请

US20080112647A1 SYSTEMS AND METHODS FOR RESIZING MULTIMEDIA DATA 审中-公开
标题翻译：用于确定多媒体数据的系统和方法
公开(公告)号：US20080112647A1
公开(公告)日：2008-05-15
申请号：US11560230
申请日：2006-11-15
申请人： Ke-Chiang Chu
发明人： Ke-Chiang Chu
IPC分类号： G06K9/32
CPC分类号： G06T3/4007
摘要： Systems and methods for resizing data that provides higher quality results while using fewer resources than traditional methods. In one embodiment disclosed herein, a nearest neighborhood technique is used to compute data that can be used to generate target data. The resizing method is ideal for use in mobile devices, where video and audio data may need to be resized or resampled, but memory and processing power are scarce.
摘要翻译：调整数据大小的系统和方法可以提供更高质量的结果，同时使用比传统方法更少的资源。在本文公开的一个实施例中，使用最近邻近技术来计算可用于生成目标数据的数据。调整大小的方法非常适用于移动设备，其中视频和音频数据可能需要调整大小或重新采样，但是内存和处理能力很少。

2. 发明授权

US06798918B2 System and method using edge processing to remove blocking artifacts from decompressed images 有权
标题翻译：使用边缘处理从解压缩图像中去除块状伪影的系统和方法
公开(公告)号：US06798918B2
公开(公告)日：2004-09-28
申请号：US10124932
申请日：2002-04-17
申请人： Ke-Chiang Chu , Jian Lu , Yu Tina Tian , Hsi-Jung Wu
发明人： Ke-Chiang Chu , Jian Lu , Yu Tina Tian , Hsi-Jung Wu
IPC分类号： G06K940
CPC分类号： G06T9/00 , G06T5/002 , G06T7/12 , G06T2207/10016 , G06T2207/20021 , H04N19/86
摘要： A system and method using edge processing to remove blocking artifacts comprises an edge processor having an image converter for building an edge representation of a received image, a statistics analyzer for compiling a histogram containing edge intensities of the edge representation, a reference calculator for using the histogram to compute reference values corresponding to the blocking artifacts and an artifact remover for identifying and removing the blocking artifacts using the computed reference values.
摘要翻译：使用边缘处理去除块状伪影的系统和方法包括具有用于构建接收图像的边缘表示的图像转换器的边缘处理器，用于编译包含边缘表示的边缘强度的直方图的统计分析器，用于使用边缘表示的参考计算器直方图以计算对应于块伪像的参考值，以及伪像去除器，用于使用计算的参考值来识别和去除块伪像。

3. 发明授权

US06795740B1 Rectifying overflow and underflow in equalized audio waveforms 有权
标题翻译：在均衡的音频波形中整流溢出和下溢
公开(公告)号：US06795740B1
公开(公告)日：2004-09-21
申请号：US09516387
申请日：2000-03-01
申请人： Ke Chiang Chu , Hong Kaura , James Peter Hoddie
发明人： Ke Chiang Chu , Hong Kaura , James Peter Hoddie
IPC分类号： G06E1700
CPC分类号： H03G3/3089 , H03G7/007 , H03G11/008
摘要： The invention is a method, apparatus and computer readable program for eliminating overflow and underflow by re-adjusting or rectifying the audio levels of an audio signal in those portions where overflow/underflow occurs. In a first preferred embodiment a single stage scale down solution is provided in starting and end points of the overflow/underflow areas in the audio signal are detected, and a number of discrete sampling points along the audio signal curve between these two points are adjusted by a predetermined multiplier in order to reduce the positive level (in the case of overflow) or negative level (in the case of underflow) of each discrete sampling point. Using the single stage scale down solution of the present invention, a new audio signal is created having no overflow/underflow, yet maintaining the former generally smooth shape of the audio signal waveform and signal characteristics, without completely clipping the audio levels. In a second preferred embodiment a multi-stage scale down solution is provided in which the overflow/underflow is divided into sections, such that the discrete sampling points in one section may be adjusted by a first multiplier in order to reduce their audio levels; while discrete sampling points in another, section may be adjusted by a second multiplier (which is preferably different than the first multiplier) in order to reduce their audio levels. Accordingly, a new audio signal is constructed with reduced overflow/underflow, yet maintaining a generally smooth signal curve and characteristics, without completely clipping the audio levels.
摘要翻译：本发明是一种用于通过在发生溢出/下溢的部分中重新调整或整流音频信号的音频电平来消除上溢和下溢的方法，装置和计算机可读程序。在第一优选实施例中，单级缩小解决方案是检测在音频信号中的溢出/下溢区域的起点和终点中设置的，并且通过预定的乘数来调整沿着这两个点之间的音频信号曲线的多个离散采样点，以便减少正的水平（在溢出的情况）或每个离散采样点的负电平（在下溢的情况下）。使用本发明的单级缩小方案，创建了没有上溢/下溢的新的音频信号，并且保持了音频信号波形和信号特性的前者大致平滑的形状，而没有完全限制音频电平。在第二优选实施例提供了一种多级缩小的解决方案，其中溢出/下溢被分成多个部分，使得一个部分中的离散采样点可以被第一乘法器调整以便降低它们的音频电平; 而另一部分中的离散采样点可以由第二乘法器（其优选地与第一乘法器不同）来调整，以便降低它们的音频电平。因此，新的音频信号被构造为具有减少的溢出/下溢，但是在没有完全限制音频电平的情况下保持大致平滑的信号曲线和特性。

4. 发明授权

US5838691A Codebook-based lossy data compression encoding system 失效
标题翻译：基于码本的有损数据压缩编码系统
公开(公告)号：US5838691A
公开(公告)日：1998-11-17
申请号：US723695
申请日：1996-09-30
申请人： Ke-Chiang Chu , Dulce Ponceleon , James Normile
发明人： Ke-Chiang Chu , Dulce Ponceleon , James Normile
IPC分类号： G06T9/00 , H03M7/30 , H03M7/42 , G06F11/00
CPC分类号： G06T9/008 , H03M7/3082 , H03M7/42
摘要： A communication system encodes input data by comparing the data to records in a lossy codebook to determine the closest match. An index corresponding to the record that most closely matches the input data is retrieved from the codebook and transmitted to a receiver. For a predetermined sampling interval, the communication system collects statistics of the frequency of occurrence of each record matching the input data. The records are sorted in descending order by the frequency of occurrence. Using either a predetermined error rate or a predetermined subtable size, the communication system creates a subtable of the records having the greatest frequency of occurrence. To reduce the search time of finding a record matching the input data, the communication system searches only the subtable for records until the error of the match in the subtable exceeds a preselected threshold or until a preselected period of time has elapsed. The communication system again collects statistics of the frequency of occurrence.
摘要翻译：通信系统通过将数据与有损码本中的记录进行比较来确定最接近的匹配来对输入数据进行编码。对应于与输入数据最匹配的记录的索引从码本中检索并发送到接收器。对于预定的采样间隔，通信系统收集与输入数据匹配的每个记录的出现频率的统计。记录按发生频率按降序排列。使用预定错误率或预定的子尺寸，通信系统创建具有最大发生频率的记录的子表。为了减少找到与输入数据匹配的记录的搜索时间，通信系统仅搜索子表中的记录，直到子表中的匹配错误超过预选阈值或直到预选的时间段过去。通信系统再次收集发生频率的统计。

5. 发明授权

US5734892A Efficient method and apparatus for access and storage of compressed data 失效
标题翻译：用于访问和存储压缩数据的高效方法和装置
公开(公告)号：US5734892A
公开(公告)日：1998-03-31
申请号：US529375
申请日：1995-09-18
申请人： Ke-Chiang Chu
发明人： Ke-Chiang Chu
IPC分类号： G11B20/00 , G11B27/034 , G11B27/10 , G11B27/32 , G06F17/30
CPC分类号： G11B27/034 , G11B20/00007 , G11B27/105 , G11B27/329 , G11B2220/20 , Y10S707/99942
摘要： Storage and access of compressed data via separately compressed and stored variable size logical blocks. Portions of a data file are compressed until they reach a logical block size which matches a given sector size or block of storage space. The compressed logical block (portion of compressed data) is stored into a sector allocated to it and a table is built correlating the range of original data to the sector storing the compressed data. When it is desired to read a given portion of data within a stored compressed data file, it is first determined where within the original data file the desired portion resided. Then, the correlation table created as part of the compression and storage sequence is used to determine which sector contains the desired data. When writing data back to the storage medium which contained the originally compressed block of data, and the data has been modified before it was re-compressed and stored back to the storage medium, and if the modification resulted in the logical block compressing to a degree such that the originally allocated space is now insufficient to contain the modified and compressed data then an overflow condition would occur. In that case, contiguous sectors are allocated and the modified re-compressed data is stored therein. Furthermore, the sectors used by this overflow block will be added to the correlation table so that any references to that logical block will retrieve the newly used sectors.
摘要翻译：通过单独压缩和存储的可变大小的逻辑块来存储和访问压缩数据。数据文件的部分被压缩直到它们达到与给定扇区大小或存储空间块相匹配的逻辑块大小。将压缩的逻辑块（压缩数据的一部分）存储到分配给其的扇区中，并且建立将原始数据的范围与存储压缩数据的扇区相关联的表。当希望在存储的压缩数据文件中读取给定部分的数据时，首先确定原始数据文件中所需部分驻留在哪里。然后，使用作为压缩和存储序列的一部分而创建的相关表来确定哪个扇区包含期望的数据。当将数据写回到包含原始压缩数据块的存储介质时，并且数据在被重新压缩并被存储回存储介质之前被修改，并且如果修改导致逻辑块压缩到一定程度使得原始分配的空间现在不足以容纳修改和压缩的数据，则将发生溢出状况。在这种情况下，分配连续的扇区，并且将经修改的重新压缩的数据存储在其中。此外，该溢出块使用的扇区将被添加到相关表中，以便对该逻辑块的任何引用将检索新使用的扇区。

6. 发明授权

US5623262A Multi-word variable length encoding and decoding 失效
标题翻译：多字可变长度编码和解码
公开(公告)号：US5623262A
公开(公告)日：1997-04-22
申请号：US291655
申请日：1994-08-17
申请人： James O. Normile , Katherine Shu-wei Wang , Ke-Chiang Chu , Dulce B. Ponceleon , Hsi-Jung Wu
发明人： James O. Normile , Katherine Shu-wei Wang , Ke-Chiang Chu , Dulce B. Ponceleon , Hsi-Jung Wu
IPC分类号： H03M7/42 , H03M7/40
CPC分类号： H03M7/425
摘要： Decoding and encoding of variable length data words and data strings is accelerated by testing for and processing more than one word or string per encoding or decoding cycle. In an encoding scheme wherein fixed length data words are encoded into variable length data strings, decoding is carried out by first receiving a data stream having a plurality of encoded data strings contained therein, and then testing at least a portion of the data stream to determine whether the portion contains one of a number of selected sets of multiple data strings. If the portion of the data stream contains one of the selected sets of multiple data strings, the multiple data strings are decoded into a corresponding set of multiple data words. This decoding procedure allows a plurality of encoded data strings to be decoded in a single decoding cycle. The procedure may be implemented using either a single lookup table or a set of split-level lookup tables. The above procedure may also be applied to an encoding scheme wherein variable length data words are transformed into fixed length encoded data strings to encode the variable length data words. Furthermore, the above procedure may be applied to an encoding scheme wherein variable length data words are transformed into variable length data strings to both encode and decode the variable length data words and data strings.
摘要翻译：可变长度数据字和数据串的解码和编码通过对每个编码或解码周期进行测试和处理多个字或字符串来加速。在将固定长度数据字编码为可变长度数据串的编码方案中，通过首先接收其中包含多个编码数据串的数据流，然后测试数据流的至少一部分来确定该部分是否包含多个选定的多个数据串集合中的一个。如果数据流的部分包含所选择的多个数据串集合中的一个，则将多个数据串解码成相应的多个数据字集合。该解码过程允许在单个解码周期中解码多个编码数据串。该过程可以使用单个查找表或一组拆分级查找表来实现。上述过程也可以应用于其中可变长度数据字被变换成固定长度编码数据串以对可变长度数据字进行编码的编码方案。此外，上述过程可以应用于编码方案，其中可变长度数据字被变换成可变长度数据串，以对可变长度数据字和数据串进行编码和解码。

7. 发明授权

US5408234A Multi-codebook coding process 失效
标题翻译：多码本编码过程
公开(公告)号：US5408234A
公开(公告)日：1995-04-18
申请号：US56343
申请日：1993-04-30
申请人： Ke-Chiang Chu
发明人： Ke-Chiang Chu
IPC分类号： G06T9/00 , H03M7/30 , H03M7/42
CPC分类号： G06T9/005 , H03M7/3086 , H03M7/42
摘要： An improved multi-codebook phase-in coding process for coding electronic data wherein for each received electronic input data, the coding process detects whether that input data exceeds a current coding maximum, then selecting a codebook coding method from one or more codebook coding methods in response to detecting whether that input data exceeds the current coding maximum, and then encoding that input data in accordance to the selected codebook coding method to generate a coded output data. A corresponding codebook indicator is inserted into a generated coded output data stream to indicate which codebook method to use to decode the coded output data. During decoding, the decoding process detects for a decode method indicator associated with each encoded input data, and decodes in accordance to a decode method corresponding to the detected decode method indicator to generate a decoded output data.
摘要翻译：一种用于编码电子数据的改进的多码本相位编码处理，其中对于每个接收到的电子输入数据，编码处理检测该输入数据是否超过当前编码最大值，然后从一个或多个码本编码方法中选择码本编码方法响应于检测该输入数据是否超过当前编码最大值，然后根据所选择的码本编码方法对输入数据进行编码，以生成编码的输出数据。将相应的码本指示符插入到生成的编码输出数据流中，以指示用于对编码的输出数据进行解码的码本方法。在解码期间，解码处理检测与每个编码的输入数据相关联的解码方法指示符，并且根据与检测到的解码方法指示符相对应的解码方法进行解码，以生成解码的输出数据。

8. 发明授权

US07092580B2 System and method using edge processing to remove blocking artifacts from decompressed images 有权
公开(公告)号：US07092580B2
公开(公告)日：2006-08-15
申请号：US10847988
申请日：2004-05-17
申请人： Ke-Chiang Chu , Jian Lu , Yu Tina Tian , Hsi-Jung Wu
发明人： Ke-Chiang Chu , Jian Lu , Yu Tina Tian , Hsi-Jung Wu
IPC分类号： G06K9/40
CPC分类号： G06T9/00 , G06T5/002 , G06T7/12 , G06T2207/10016 , G06T2207/20021 , H04N19/86
摘要： A system and method using edge processing to remove blocking artifacts comprises an edge processor having an image converter for building an edge representation of a received image, a statistics analyzer for compiling a histogram containing edge intensities of the edge representation, a reference calculator for using the histogram to compute reference values corresponding to the blocking artifacts and an artifact remover for identifying and removing the blocking artifacts using the computed reference values.

9. 发明授权

US06618509B2 Digital image coding system having self-adjusting selection criteria for selecting a transform function 有权
公开(公告)号：US06618509B2
公开(公告)日：2003-09-09
申请号：US09829519
申请日：2001-04-09
申请人： Hsi-Jung Wu , Yu Tina Tian , Jian Lu , Ke-Chiang Chu
发明人： Hsi-Jung Wu , Yu Tina Tian , Jian Lu , Ke-Chiang Chu
IPC分类号： G06K900
CPC分类号： G06T9/007 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/14 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/198 , H04N19/61
摘要： In a digital signal processing system, a method for selecting a transform function to apply to an input signal based on characteristics of the signal, and for self-adjusting criteria which are used in selecting a transform function to apply to a subsequent signal. Characteristics are obtained from the signal. The characteristics are compared to adjustable criteria which are used in selecting a transform function. Differing criteria are maintained for the different selectable transform functions. A record is maintained of transform functions selected and the particular characteristics that caused the selection. Based on the ability of a transform function to minimally define the coded signal, an inverse transform function is selected to decode the signal. The criteria used in selecting a transform function to apply to a subsequent signal are adjusted based on a quality measure of the decoded signal and the record of selected transform functions.

10. 发明授权

US06531969B2 Resampling system and apparatus 有权
公开(公告)号：US06531969B2
公开(公告)日：2003-03-11
申请号：US09847920
申请日：2001-05-02
申请人： Ke-Chiang Chu
发明人： Ke-Chiang Chu
IPC分类号： H03M700
CPC分类号： H03H17/0275 , G11B20/10527 , H03H17/0621 , H03H17/0628
摘要： A filter system and method are provided that is particular applicable to the resampling of a signal, such as a digital audio signal. The filtering method in accordance with the invention may use a nearest neighbor strategy to reduce the complexity and cost of the filter without reducing the precision of the resampling.

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