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31. 发明授权

US07092448B2 Method and system for estimating no-reference objective quality of video data 有权
公开(公告)号：US07092448B2
公开(公告)日：2006-08-15
申请号：US10155211
申请日：2002-05-24
申请人： Deepak S. Turaga , Yingwei Chen , Jorge Caviedes
发明人： Deepak S. Turaga , Yingwei Chen , Jorge Caviedes
IPC分类号： H04N7/12
CPC分类号： H04N17/004
摘要： The present invention relates to a method and system for estimating the quality of encoded video data without gaining access to the source data. The system is configured to decode compressed video data using an MPEG/H.263 decoder to produce decompressed video data. The decoded data is subject to a discrete cosine transform (DCT) to produce a set of DCT coefficients of the decompressed video data is determined to be intra-coded. Meanwhile, the quantization matrix including a quantizier step size for each block of the decompressed video data are extracted. Following this, statistical properties of the DCT coefficients are extracted from the decoded video. Then, an average quantization error for both AC and DC coefficients is determined using information regarding the quantization and the statistical properties. Finally, this estimated quantization error is used for in computing a peak signal to noise ratio (PSNR).

32. 发明授权

US07020672B2 Reduced complexity IDCT decoding with graceful degradation 失效
公开(公告)号：US07020672B2
公开(公告)日：2006-03-28
申请号：US09823363
申请日：2001-03-30
申请人： Tse-Hua Lan , Zhun Zhong , Yingwei Chen
发明人： Tse-Hua Lan , Zhun Zhong , Yingwei Chen
IPC分类号： G06F17/14
CPC分类号： H04N19/625 , H04N19/122 , H04N19/126 , H04N19/132 , H04N19/137 , H04N19/156 , H04N19/176 , H04N19/18 , H04N19/44 , H04N19/59 , H04N19/61 , H04N19/90
摘要： Data compressed according to a lossy DCT-based algorithm, such as the MPEG or MPEG2 algorithms, is decompressed according to a dynamically-selected set of DCT coefficients, with unused coefficients masked out. A macroblock of the data exhibiting little motion is decompressed with a small subset of DCT coefficients, while a macroblock exhibiting more motion is decompressed using a larger subset of DCT coefficients up the full set of DCT coefficients. Average computational complexity is thus kept low, enabling the use of inexpensive equipment, while degradation is minimized.

33. 发明授权

US07016414B2 Method and system for skipping decoding of overlaid areas of video 失效
公开(公告)号：US07016414B2
公开(公告)日：2006-03-21
申请号：US10082859
申请日：2001-10-19
申请人： Yingwei Chen , Shaomin Peng , Tse-Hua Lan , Zhun Zhong
发明人： Yingwei Chen , Shaomin Peng , Tse-Hua Lan , Zhun Zhong
IPC分类号： H04N7/18
CPC分类号： H04N19/577 , H04N19/132 , H04N19/139 , H04N19/157 , H04N19/159 , H04N19/17 , H04N19/172 , H04N19/23 , H04N19/46 , H04N19/587
摘要： A system and method that reduces computational complexity of a decoder by identifying a skippable region in an overlaid area. The invention provides a system for processing encoded video data, comprising: an analysis system that determines if a current video frame having an overlaid area acts as a reference for future video frames; and a system for identifying a skippable region in the overlaid area. The invention may also include a system for identifying a portion of the overlaid area as the skippable based on analysis of motion vectors or motion vector ranges.

34. 发明授权

US06985635B2 System and method for providing a single-layer video encoded bitstreams suitable for reduced-complexity decoding 有权
标题翻译：用于提供适合于复杂度降低的解码的单层视频编码比特流的系统和方法
公开(公告)号：US06985635B2
公开(公告)日：2006-01-10
申请号：US10127528
申请日：2002-04-22
申请人： Yingwei Chen , Zhun Zhong
发明人： Yingwei Chen , Zhun Zhong
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/18 , H04N19/126 , H04N19/132 , H04N19/156 , H04N19/61
摘要： A method and system of reducing the computation load of an MPEG decoder by changing the encoding algorithms in a video-processing system are provided. During an encoding mode, a stream of data blocks is received and at least one motion vector and one motion compensation prediction value for each macro-block are generated. The prediction value is transformed into a set of DCT coefficients. Prior to the quantizing step, the set of DCT coefficients are modified according to predetermined criteria. To this end, the total energy level of the DCT coefficients excluding the lowest 2×2 DCT coefficients is computed, and last column and last row of the DCT coefficients is discarded alternatively until the total energy level of the DCT coefficients reaches a predetermined energy level. Therafter, the discarded column or row is assigned to a predetermined value. The modified DCT coefficients are then quantized and encoded, thereby generating a bit stream of encoded macro-blocks, which are subsequently decoded according to a conventional decoding process.
摘要翻译：提供了通过改变视频处理系统中的编码算法来减少MPEG解码器的计算负荷的方法和系统。在编码模式期间，接收数据块流，并生成每个宏块的至少一个运动矢量和一个运动补偿预测值。将该预测值变换为一组DCT系数。在量化步骤之前，根据预定标准修改DCT系数集合。为此，计算除最低2×2 DCT系数之外的DCT系数的总能级，并且DCT系数的最后一行和最后一行被替换地丢弃，直到DCT系数的总能级达到预定的能级。 Therafter将丢弃的列或行分配给预定值。然后对经修改的DCT系数进行量化和编码，从而生成经编码的宏块的比特流，其随后根据常规解码过程进行解码。

35. 发明授权

US06917713B2 System and method for enhancing videos from drift-free scalable bitstream 失效
公开(公告)号：US06917713B2
公开(公告)日：2005-07-12
申请号：US10157666
申请日：2002-05-29
申请人： Jong Chul Ye , Yingwei Chen
发明人： Jong Chul Ye , Yingwei Chen
IPC分类号： G06T9/00 , H03M7/30 , H04N19/895 , G06K9/46
CPC分类号： H04N19/34 , H04N19/126 , H04N19/61 , H04N19/895
摘要： A scalable decoder system having a decoder reconstruction system, wherein the decoder reconstruction system comprises: an estimation algorithm x ~ i , n e = a i , n + E Z ⁢ { d i , n ⁡ ( ρ ; x ~ i , n - 1 e + Z ) } for estimating a lost discrete cosine transform (DCT) coefficient, which incorporates the quantization noise of previous enhancement layer data into the expectation, wherein the estimation algorithm includes a density distribution dependent on at least one unknown parameter {circumflex over (α)}l; and a parameter estimation algorithm for estimating {circumflex over (α)}l according to the equation: α ^ l = - log ⁡ ( 1 - P ^ l ) b l , wherein bl denotes each of a set of quantizer decision levels l, and {circumflex over (P)}l is the sum of a set of a normalized frequency of occurrences of data quantized to each quantizer decision level 1,2, . . . , l.

36. 发明授权

US08869254B2 User verification using voice based password 有权
标题翻译：用户验证使用基于语音的密码
公开(公告)号：US08869254B2
公开(公告)日：2014-10-21
申请号：US12806601
申请日：2010-08-16
申请人： Yingwei Chen , Zheng Yang
发明人： Yingwei Chen , Zheng Yang
IPC分类号： H04L29/06 , H04L9/32 , G06F21/31 , G06F21/43
CPC分类号： H04L63/0838 , G06F21/31 , G06F21/43 , H04L9/32 , H04L63/08 , H04L63/083 , H04L63/0861
摘要： Verifying a user includes: receiving a service request; generating a text based first dynamic password upon receiving the service request; converting the first dynamic password into sound information; transmitting the sound information to a user terminal over a communication network; receiving over the Internet a second dynamic password entered by the user based on the sound information, the second dynamic password being a text based password; comparing the first and second dynamic passwords for consistency; and indicating that verification is successful if the first and the second dynamic passwords are consistent.
摘要翻译：验证用户包括：接收服务请求; 在接收到服务请求时生成基于文本的第一动态密码; 将第一个动态密码转换成声音信息; 通过通信网络将声音信息发送到用户终端; 通过互联网接收基于所述声音信息由用户输入的第二动态密码，所述第二动态密码是基于文本的密码; 比较第一和第二动态密码的一致性; 并且指示如果第一和第二动态密码一致，验证是成功的。

37. 发明申请

US20130225579A1 CYANOQUINOLINE DERIVATIVES 有权
标题翻译：氰基喹啉衍生物
公开(公告)号：US20130225579A1
公开(公告)日：2013-08-29
申请号：US13702987
申请日：2011-06-08
申请人： Hesheng Zhang , Yingwei Chen , Qingchao He
发明人： Hesheng Zhang , Yingwei Chen , Qingchao He
IPC分类号： C07D405/12 , C07D409/14 , C07D401/14 , C07D405/14
CPC分类号： C07D217/26 , C07D401/12 , C07D401/14 , C07D405/12 , C07D405/14 , C07D409/14
摘要： Disclosed is a compound of formula I, a stereoisomer thereof, a cis-trans-isomer thereof, a tautomer thereof, or a mixture thereof, or a pharmaceutically acceptable salt thereof, a solvate thereof or a prodrug thereof, wherein R1, R2, R3 and R4 are each as defined in the present application.
摘要翻译：公开了式I化合物，其立体异构体，其顺反异构体，其互变异构体或其混合物，或其药学上可接受的盐，其溶剂合物或其前药，其中R1，R2，R3 和R4各自如本申请中所定义。

38. 发明授权

US08320540B2 Verifying user identity using a reverse caller ID process 有权
标题翻译：使用反向来电显示过程验证用户身份
公开(公告)号：US08320540B2
公开(公告)日：2012-11-27
申请号：US12599037
申请日：2008-11-24
申请人： Yingwei Chen
发明人： Yingwei Chen
IPC分类号： H04M1/56
CPC分类号： H04M3/42059 , G06F21/42 , H04L63/18 , H04M2201/18 , H04M2203/6045 , H04M2207/18
摘要： The present disclosure provides a method and a system for verifying identity of a user and a system for generating and maintaining verification codes. The method and the system use system-generated caller numbers as verification codes. When an application system needs to verify the identity of a user, the verification system generates a caller phone number and uses a communication switching system to place a call originating from the caller phone number to the user's phone. The user's phone has a caller ID display function to automatically display the caller number, which serves as a user identity verification code. The user provides the received caller number to the application system for user identity verification. No text messaging or other ways of communication is required. The method and the system can achieve reliable user identity verification. A centralized system may support multiple application systems for user identity verification.
摘要翻译：本公开提供了一种用于验证用户身份和用于生成和维护验证码的系统的方法和系统。方法和系统使用系统生成的呼叫者号码作为验证码。当应用系统需要验证用户的身份时，验证系统产生呼叫者电话号码，并使用通信交换系统将来自呼叫者电话号码的呼叫发送到用户的电话。用户手机具有来电显示功能，可以自动显示主叫号码，作为用户身份验证码。用户将所接收的呼叫者号码提供给应用系统以进行用户身份验证。不需要短信或其他通信方式。该方法和系统可以实现可靠的用户身份验证。集中式系统可以支持用于用户身份验证的多个应用系统。

39. 发明授权

US07992068B2 Digital television transmission with error correction 失效
标题翻译：数字电视传输带纠错
公开(公告)号：US07992068B2
公开(公告)日：2011-08-02
申请号：US10574608
申请日：2004-09-30
申请人： Yingwei Chen , Dagnachew Birru , James Wallace Wendorf
发明人： Yingwei Chen , Dagnachew Birru , James Wallace Wendorf
IPC分类号： H03M13/29 , H03M13/35 , H04N7/66
CPC分类号： H03M13/356 , H03M13/29 , H04N19/67 , H04N19/89
摘要： In a transmitter, a standard stream of encoded multi-media data and uniform error correction data is transmitted through a first channel. The uniform error correction data provides substantially the same error correction for all portions of the encoded multimedia data. Simultaneously, additional unequal error correction data is generated for critical portions of the standard stream and not for other portions of the standard stream, and the additional error correct data is transmitted through a second channel. In a receiver, the additional error correct data is used to error correct just the critical portions of the standard stream, and then the uniform error correction data is used to error correct all the portions of the encoded multimedia data of the standard stream.
摘要翻译：在发射机中，编码的多媒体数据的标准流和均匀纠错数据通过第一信道传输。均匀纠错数据为编码的多媒体数据的所有部分提供基本相同的纠错。同时，为标准流的关键部分而不是标准流的其他部分生成附加的不相等的纠错数据，并且通过第二通道发送附加的错误正确数据。在接收机中，使用附加的错误校正数据来错误地校正标准流的关键部分，然后使用均匀纠错数据来错误校正标准流的编码多媒体数据的所有部分。

40. 发明申请

US20100138347A1 Account Transaction Management Using Dynamic Account Numbers 审中-公开
标题翻译：使用动态帐号进行账户交易管理
公开(公告)号：US20100138347A1
公开(公告)日：2010-06-03
申请号：US12598617
申请日：2008-10-28
申请人： Yingwei Chen
发明人： Yingwei Chen
IPC分类号： G06Q40/00 , H04L9/32
CPC分类号： G06Q20/385 , G06Q20/10 , G06Q20/40
摘要： A method and a system for managing account transactions aim to effectively prevent account information from being compromised. The system generates a dynamic account number corresponding to a true account number of an account of a user and sends the dynamic account number to the user. The system stores the corresponding relationship between the true account number and the dynamic account number. The system conducts an account transaction requested by the user according to the dynamic account number supplied by the user and the corresponding relationship. The account can be a bank account, and the dynamic account number may be valid for a one-time use or set to expire after a certain period of time or a certain number of uses. The method and the system can make account transactions more reliable and safer, and effectively prevent user account information from malicious access.
摘要翻译：用于管理账户交易的方法和系统旨在有效地防止帐户信息的泄露。该系统生成对应于用户帐户的真实帐号的动态帐号，并将该动态帐号发送给用户。系统存储真实帐号与动态帐号之间的对应关系。系统根据用户提供的动态账号和相应的关系进行用户请求的账户交易。帐户可以是银行帐户，动态帐号可能有效一次性使用或设置为在一段时间或一定数量的使用后到期。该方法和系统可以使帐户交易更可靠，更安全，有效防止用户帐号信息的恶意访问。

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