公开(公告)号：US06285796B1

公开(公告)日：2001-09-04

申请号：US08963335

申请日：1997-11-03

申请人： Tinku Acharya ,  Judith A. Goldstein ,  Michael Keith ,  Po Yuan

发明人： Tinku Acharya ,  Judith A. Goldstein ,  Michael Keith ,  Po Yuan

IPC分类号： H04N141

CPC分类号： H04N19/50

摘要： A method and apparatus for efficient image encoding in a predictive coding or other error image based image compression scheme, a pseudo-fixed length code is employed to convert certain calculated error values into codewords. The code is pseudo-fixed length since the length of codewords is fixed for a particular range of values and then increased for the next range. The length of codewords is not needed in decoding by choosing prefixes that uniquely distinguish codewords when packed together. As a result, efficient and quick image encoding/decoding is made possible.

摘要翻译： 一种用于在预测编码或其他基于误差图像的图像压缩方案中有效图像编码的方法和装置，采用伪固定长度码将某些计算的误差值转换为码字。 代码是伪固定长度，因为码字的长度对于特定值的范围是固定的，然后在下一个范围内增加。 通过选择在打包在一起时唯一区分码字的前缀，解码中不需要码字的长度。 结果，有效和快速的图像编码/解码成为可能。

公开(公告)号：US08621601B2

公开(公告)日：2013-12-31

申请号：US12124456

申请日：2008-05-21

申请人： Mei Yan ,  Chieh-Hao Yang ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

发明人： Mei Yan ,  Chieh-Hao Yang ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

IPC分类号： G06F21/00

CPC分类号： G06F21/6218 ,  G06F21/12 ,  G06F21/51 ,  G06F21/6272

摘要： A set of code for a peripheral device is installed on a host device. The set of code is used to control access to the peripheral device from the host device. The set of code also contains one or more subsets of code that can be used by software entities on the host device for access to the peripheral device. A software entity on a host device must be successfully authenticated with the set of code installed on the host device. Once the software entity is successfully authenticated, the set of code will provide access to the one or more subsets of code specific to the software entity. The one or more subsets of code can be used by the software entity to access the peripheral device.

摘要翻译： 在主机设备上安装了一组外围设备的代码。 这组代码用于控制从主机设备对外围设备的访问。 该代码集还包含一个或多个可由主机设备上的软件实体用于访问外围设备的代码子集。 必须使用主机设备上安装的一组代码成功验证主机设备上的软件实体。 一旦软件实体被成功认证，该组代码将提供对软件实体特有的一个或多个代码子集的访问。 软件实体可以使用一个或多个代码子集来访问外围设备。

公开(公告)号：US08171310B2

公开(公告)日：2012-05-01

申请号：US11963960

申请日：2007-12-24

申请人： Mei Yan ,  Chieh-Hao Yang ,  Junzhi Wang ,  Paul McAvoy ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

发明人： Mei Yan ,  Chieh-Hao Yang ,  Junzhi Wang ,  Paul McAvoy ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

IPC分类号： G06F21/00

CPC分类号： H04L9/3271 ,  H04L2209/603

摘要： A software entity on a host device attempting to access protected content in a secure memory device must be authenticated using a challenge/response authentication mechanism before the secure file system can be accessed. A file system filter determines whether requested content is protected. If the content is protected, the file system filter provides a challenge to the software entity and generates a file system filter response using the same challenge. The software entity must then send a software entity response using the challenge to the file system filter. If the file system filter determines that the software entity response matches the file system filter response, the software entity is allowed to access the protected content through a secure file system installed on the host device for the memory device.

摘要翻译： 在安全文件系统可访问之前，尝试访问安全存储设备中受保护内容的主机设备上的软件实体必须使用挑战/响应认证机制进行身份验证。 文件系统过滤器确定所请求的内容是否被保护。 如果内容受到保护，则文件系统过滤器会向软件实体提供挑战，并使用相同的挑战生成文件系统过滤器响应。 然后，软件实体必须使用挑战向文件系统过滤器发送软件实体响应。 如果文件系统过滤器确定软件实体响应与文件系统过滤器响应匹配，则允许软件实体通过安装在存储设备的主机设备上的安全文件系统来访问受保护的内容。

公开(公告)号：US08146153B2

公开(公告)日：2012-03-27

申请号：US11967641

申请日：2007-12-31

申请人： Po Yuan ,  Javier Cañis Robles ,  Mei Yan ,  Fabrice Jogand-Coulomb ,  Ahmet Altay ,  Bahman Qawami ,  Patricia Dwyer ,  Robert Chin-Tse Chang ,  Oktay Rasizade ,  Farshid Sabet-Sharghi

发明人： Po Yuan ,  Javier Cañis Robles ,  Mei Yan ,  Fabrice Jogand-Coulomb ,  Ahmet Altay ,  Bahman Qawami ,  Patricia Dwyer ,  Robert Chin-Tse Chang ,  Oktay Rasizade ,  Farshid Sabet-Sharghi

IPC分类号： G06F21/00 ,  H04M1/66

CPC分类号： G06Q20/3574 ,  G06F21/77 ,  G06F21/79 ,  G06F2221/2113 ,  G06F2221/2153 ,  G06Q20/35765 ,  G07F7/1008 ,  H04W12/08

摘要： In order to create and access a secure storage account in a non-volatile memory device, an account identification value is calculated. A memory identification value is read from a first non-volatile memory device. The memory identification value and the account identification value are transmitted to a second non-volatile memory device, and a calculated credential is received. A command is transmitted to create a secure storage account in the first non-volatile memory device, where the command contains the credential and the account identification value. To access the account, a sequence is transmitted, containing the account identification value and a value based on the credential. A secure storage system contains a first non-volatile memory device that stores a memory identification value and contains a secure partition accessible using a credential, a second non-volatile memory device that can compute the credential, and a host adapted to create and access the secure partition.

摘要翻译： 为了在非易失性存储设备中创建和访问安全存储帐户，计算帐户识别值。 从第一非易失性存储器件读取存储器识别值。 存储器识别值和帐户识别值被发送到第二非易失性存储器件，并且接收计算的凭​​证。 发送命令以在第一非易失性存储器设备中创建安全存储帐户，其中命令包含凭证和帐户标识值。 要访问帐户，将传输一个序列，其中包含帐户标识值和基于凭证的值。 安全存储系统包含第一非易失性存储器设备，其存储存储器标识值并且包含使用凭证可访问的安全分区，可以计算证书的第二非易失性存储器设备，以及适于创建和访问的主机 安全分区。

公开(公告)号：US20100306152A1

公开(公告)日：2010-12-02

申请号：US12472929

申请日：2009-05-27

申请人： Ahmet Altay ,  Po Yuan ,  Junzhi Wang ,  Haluk Kent Tanik

发明人： Ahmet Altay ,  Po Yuan ,  Junzhi Wang ,  Haluk Kent Tanik

IPC分类号： G06F17/00

CPC分类号： G11B27/105 ,  G11B27/3027 ,  G11B27/36 ,  G11B2220/17 ,  G11B2220/61 ,  H04N21/2541 ,  H04N21/8166 ,  H04N21/835 ,  H04N21/8355

摘要： The embodiments described herein generally relate to a method and host device for enforcing a rule associated with a media file. In one embodiment, an observer module determines that a media player is attempting to play a media file. Before allowing the media player to play the media file, the observer module determines if the media file is associated with a rule that specifies an action to be taken if a playback event is detected. If it is determined that the media file is associated with a rule, the observer module observes playback of the media file to detect if the playback event specified in the rule occurred and takes the action specified in the rule if the playback event is detected.

摘要翻译： 本文描述的实施例通常涉及用于实施与媒体文件相关联的规则的方法和主机设备。 在一个实施例中，观察者模块确定媒体播放器正尝试播放媒体文件。 在允许媒体播放器播放媒体文件之前，观察者模块确定媒体文件是否与指定如果检测到重放事件时要采取的动作的规则相关联。 如果确定媒体文件与规则相关联，则观察器模块观察媒体文件的回放，以检测规则中指定的播放事件是否发生，并且如果检测到重放事件，则采取规则中指定的动作。

公开(公告)号：US20090293117A1

公开(公告)日：2009-11-26

申请号：US12124450

申请日：2008-05-21

申请人： Mei Yan ,  Chieh-Hao Yang ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

发明人： Mei Yan ,  Chieh-Hao Yang ,  Bahman Quwami ,  Farshid Sabet-Sharghi ,  Patricia Dwyer ,  Po Yuan

IPC分类号： H04L9/32 ,  G06F21/00

CPC分类号： G06F21/6272 ,  G06F21/121 ,  G06F21/51 ,  G06F21/6218 ,  H04L9/3263 ,  H04L9/3271 ,  H04L2209/603

摘要： A set of code for a peripheral device is installed on a host device. The set of code is used to control access to the peripheral device from the host device. The set of code also contains one or more subsets of code that can be used by software entities on the host device for access to the peripheral device. A software entity on a host device must be successfully authenticated with the set of code installed on the host device. Once the software entity is successfully authenticated, the set of code will provide access to the one or more subsets of code specific to the software entity. The one or more subsets of code can be used by the software entity to access the peripheral device.

摘要翻译： 在主机设备上安装了一组外围设备的代码。 这组代码用于控制从主机设备对外围设备的访问。 该代码集还包含一个或多个可由主机设备上的软件实体用于访问外围设备的代码子集。 必须使用主机设备上安装的一组代码成功验证主机设备上的软件实体。 一旦软件实体被成功认证，该组代码将提供对该软件实体特有的一个或多个代码子集的访问。 软件实体可以使用一个或多个代码子集来访问外围设备。

公开(公告)号：US20090182919A1

公开(公告)日：2009-07-16

申请号：US12267100

申请日：2008-11-07

申请人： Robert Chin-Tse Chang ,  Henry Ricardo Hutton ,  Farshid Sabet-Sharghi ,  Haluk Kent Tanik ,  Ron Barzilai ,  Meytal Soffer ,  Mei Yan ,  Patricia Dwyer ,  Po Yuan ,  Bahman Qawami

发明人： Robert Chin-Tse Chang ,  Henry Ricardo Hutton ,  Farshid Sabet-Sharghi ,  Haluk Kent Tanik ,  Ron Barzilai ,  Meytal Soffer ,  Mei Yan ,  Patricia Dwyer ,  Po Yuan ,  Bahman Qawami

IPC分类号： G06F13/42

CPC分类号： G06F13/4291

摘要： Methods for transmitting application specific or extended commands between a host and a memory card are disclosed. Commands for an extended card protocol are embedded in messages, along with a marker, in the data or command portion of a base card transmission protocol that is used to communicate between the host and the memory card. This allows for the transmission of application specific commands that lack a corresponding command in the base card protocol. The method can be implemented on the host side at the device driver level or the file level. In order to implement a read command in the extended card protocol, a write command in the base card protocol with an encapsulated read command in the extended protocol is first sent to a logical address, followed by a read command to the same logical address. Message set identifiers associate embedded commands and data received in separate transmissions.

摘要翻译： 公开了在主机和存储卡之间传送特定应用或扩展命令的方法。 用于扩展卡协议的命令与用于在主机和存储卡之间通信的基卡传输协议的数据或命令部分中的消息以及标记一起嵌入。 这允许在基卡协议中传输缺少相应命令的应用特定命令。 该方法可以在设备驱动程序级别或文件级别的主机端实现。 为了在扩展卡协议中实现读取命令，首先将扩展协议中具有封装读取命令的基卡协议中的写入命令发送到逻辑地址，然后发送到相同逻辑地址的读取命令。 消息集标识符将嵌入式命令和在单独传输中接收的数据相关联。

公开(公告)号：US20090172393A1

公开(公告)日：2009-07-02

申请号：US11967622

申请日：2007-12-31

申请人： Haluk Kent Tanik ,  Robert Chin-Tse Chang ,  Po Yuan ,  Bahman Qawami ,  Farshid Sabet-Sharghi

发明人： Haluk Kent Tanik ,  Robert Chin-Tse Chang ,  Po Yuan ,  Bahman Qawami ,  Farshid Sabet-Sharghi

IPC分类号： H04L9/28

CPC分类号： G06F21/6218 ,  G06F21/79

摘要： A method for encrypting data may generate an encryption instruction and combine it with a payload of data to form a packet. The packet is associated with a command and passed to a host file system process. The packet, now associated with a second command, is received from the host file system process. The encryption instruction and the payload of data are extracted from the packet. At least a portion of the payload of data is encrypted based on the encryption instruction. A method for decrypting data may receive a packet and generate a decryption instruction. At least a portion of the packet is decrypted using at least the decryption instruction. The second packet comprising the decrypted packet is passed to a host file system process. A third packet comprising the decrypted packet is received from the host file system process. The decrypted packet is extracted from the third packet.

摘要翻译： 用于加密数据的方法可以生成加密指令并将其与数据的有效载荷组合以形成分组。 数据包与命令相关联，并传递给主机文件系统进程。 从主机文件系统进程接收现在与第二命令相关联的分组。 从数据包中提取数据的加密指令和有效载荷。 基于加密指令对数据的有效载荷的至少一部分进行加密。 解密数据的方法可以接收分组并产生解密指令。 使用至少解密指令对分组的至少一部分进行解密。 包括解密的分组的第二分组被传递到主机文件系统进程。 从主机文件系统处理接收包括解密的分组的第三分组。 从第三个数据包中提取解密的数据包。

公开(公告)号：US07508993B2

公开(公告)日：2009-03-24

申请号：US10796880

申请日：2004-03-09

申请人： Po Yuan ,  Zhengyou Zhang

发明人： Po Yuan ,  Zhengyou Zhang

IPC分类号： G06K9/40

CPC分类号： H04N1/6027 ,  H04N1/4072

摘要： A system and process for improving the appearance of improperly colored and/or improperly exposed images is presented. This involves the use of two novel techniques—namely an automatic color correction technique and an automatic exposure correction technique. The automatic color correction technique takes information from within an image to determine true color characteristics, and improves the color in improperly colored pixels. The automatic exposure correction technique measures the average intensity of all of the pixels and adjusts the entire image pixel by pixel to compensate for over or under exposure. These techniques are stand alone in that each can be applied to an image exclusive of the other, or they can both be applied in any order desired.

摘要翻译： 提出了一种用于改善不正确着色和/或曝光不正确的图像外观的系统和过程。 这涉及使用两种新颖的技术 - 即自动色彩校正技术和自动曝光校正技术。 自动色彩校正技术从图像中获取信息以确定真实的颜色特性，并改善不正确的彩色像素中的颜色。 自动曝光校正技术测量所有像素的平均强度，并逐像素地调整整个图像以补偿曝光或曝光过度。 这些技术是独立的，因为每个可以应用于不同于另一个的图像，或者它们都可以以任何所需的顺序应用。

公开(公告)号：US07359572B2

公开(公告)日：2008-04-15

申请号：US10400593

申请日：2003-03-26

申请人： Min Liu ,  Po Yuan ,  Richard S. Turner, Jr.

发明人： Min Liu ,  Po Yuan ,  Richard S. Turner, Jr.

IPC分类号： G06K9/40 ,  G06K9/00 ,  G09G5/02

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T2207/20008

摘要： Techniques and tools for analyzing and adjusting the exposure of digital images are described. For example, a computer processes a digital image by analyzing exposure data, assigning an image classification (e.g., StretchNeeded, UnderExposed, OverExposed, or Normal) based on the analysis, and selecting an exposure compensation technique (e.g., histogram stretch, positive gamma curve, negative gamma curve, or no adjustment) based on the image classification. The exposure data can be luminance values for pixels in the digital image represented in a histogram. The computer can produce transform data comprising a transformation of the exposure data according to the selected exposure compensation technique. The computer can store transform data in a look-up table and can store the look-up table in the digital image file. The described techniques and tools can be implemented as a feature of an operating system environment and can be activated responsive to user action via a user interface.

摘要翻译： 描述了分析和调整数字图像曝光的技术和工具。 例如，计算机通过分析曝光数据，基于分析分配图像分类（例如，StretchNeeded，UnderExposed，OverExposed或Normal）来处理数字图像，并且选择曝光补偿技术（例如，直方图拉伸，正伽玛曲线 ，负伽马曲线或无调整）。 曝光数据可以是在直方图中表示的数字图像中的像素的亮度值。 计算机可以产生包括根据所选择的曝光补偿技术的曝光数据变换的变换数据。 计算机可以将变换数据存储在查找表中，并且可以将查找表存储在数字图像文件中。 所描述的技术和工具可以被实现为操作系统环境的特征，并且可以通过用户界面响应于用户动作来激活。