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    • 2. 发明授权
    • MP3 player with digital rights management
    • 具有数字版权管理的MP3播放器
    • US07861312B2
    • 2010-12-28
    • US11668316
    • 2007-01-29
    • Charles C. LeeI-Kang YuAbraham C. MaMing-Shiang Shen
    • Charles C. LeeI-Kang YuAbraham C. MaMing-Shiang Shen
    • G06F7/04G06F12/14G06F21/00H04L29/06H04L9/32H04L9/28H04N7/167H04K1/00
    • G06F21/32G06F21/10G06F2221/2129
    • A portable media player receives encrypted audio files and an encrypted content key from a central license server on the Internet. The media player supports digital rights management (DRM) by storing the encrypted audio file in its flash memory and disabling copying or playing of the audio file after a copy limit has been reached. The copy limit is a rule that is combined with the content key in a transfer key that can be encrypted together by the license server. The license server can detect cloning of the media player by reading a unique player ID from the player and detecting when too many accounts use the same unique player ID. The content key can be generated from polar coordinates of the unique player ID, player manufacturer, and song genre. A fingerprint sensor on the player can scan and compare the user's fingerprints to further detect cloning.
    • 便携式媒体播放器从互联网上的中央许可证服务器接收加密的音频文件和加密的内容密钥。 媒体播放器通过将加密的音频文件存储在其闪存中来支持数字版权管理(DRM),并且在达到复制限制之后禁用复制或播放音频文件。 复制限制是与许可证服务器可一起加密的传输密钥中的内容密钥相结合的规则。 许可证服务器可以通过从播放器中读取唯一的播放器ID来检测媒体播放器的克隆,并检测何时太多的帐户使用相同的唯一播放器ID。 内容密钥可以由唯一播放器ID,播放器制造商和歌曲类型的极坐标生成。 播放器上的指纹传感器可以扫描并比较用户的指纹,以进一步检测克隆。
    • 4. 发明授权
    • Managing bad blocks in flash memory for electronic data flash card
    • 管理电子数据闪存卡闪存中的坏块
    • US07690031B2
    • 2010-03-30
    • US11471000
    • 2006-09-07
    • Abraham C. MaCharles C. LeeI-Kang YuEdward W. LeeMing-Shiang Shen
    • Abraham C. MaCharles C. LeeI-Kang YuEdward W. LeeMing-Shiang Shen
    • G06F7/04
    • G06F11/1068G06F11/1076G06F12/1416G06F21/32G06F21/78G06K9/00087G06K19/07G06K19/07354G07C9/00087H03M13/153H03M13/1535H03M13/1545H03M13/6561
    • An electronic data flash card accessible by a host computer, includes a flash memory controller connected to a flash memory device, and an input-output interface circuit activated to establish a communication with the host. In an embodiment, the flash card uses a USB interface circuit for communication with the host. A flash memory controller includes an arbitrator for mapping logical addresses with physical block addresses, and for performing block management operations including: storing reassigned data to available blocks, relocating valid data in obsolete blocks to said available blocks and reassigning logical block addresses to physical block addresses of said available blocks, finding bad blocks of the flash memory device and replacing with reserve blocks, erasing obsolete blocks for recycling after relocating valid data to available blocks, and erase count wear leveling of blocks, etc. Furthermore, each flash memory device includes an internal buffer for accelerating the block management operations.
    • 由主机可访问的电子数据闪存卡包括连接到闪速存储器件的闪存控制器和被激活以建立与主机的通信的输入 - 输出接口电路。 在一个实施例中,闪存卡使用USB接口电路与主机进行通信。 闪速存储器控制器包括用于将逻辑地址与物理块地址对准的仲裁器,并且用于执行块管理操作,包括:将重新分配的数据存储到可用块,将过时块中的有效数据重定位到所述可用块并将逻辑块地址重新分配给物理块地址 的所述可用块,找到闪存设备的坏块并用备用块替换,在将有效数据重新定位到可用块之后擦除用于再循环的废弃块,以及擦除块的计数损耗均衡等。此外,每个闪存设备包括 内部缓冲区,用于加快块管理操作。
    • 6. 发明授权
    • Data security for electronic data flash card
    • 电子数据闪存卡的数据安全
    • US07873837B1
    • 2011-01-18
    • US11685143
    • 2007-03-12
    • Charles C. LeeI-Kang YuEdward W. LeeAbraham C. MaMing-Shiang Shen
    • Charles C. LeeI-Kang YuEdward W. LeeAbraham C. MaMing-Shiang Shen
    • G06F21/00H04L9/00H04K1/00
    • G06F12/1416G06F21/32G06F21/78G06K19/07G06K19/07354G07C9/00087
    • An electronic data flash card includes a random number generator that generates a random number stored in the card and a host system each time the card is accessed by the host system. The random number is used by the host system to encrypt a logical branch address, a user password, and user data that is written to and stored in a secure area of the card. The random number is encrypted using a key associated with the card, and the encrypted random number is stored by the card with the associated encrypted data. The random number is not stored in the host system. A new random number is generated each time the card is queried. In a read process the host system decrypts the encrypted random number using the key, then uses the random number to decrypt the associated encrypted data. Access to read/write processes are password protected.
    • 电子数据闪存卡包括随机数生成器,其生成存储在卡中的随机数,以及每次主机系统访问卡时的主机系统。 主机系统使用随机数来加密逻辑分支地址,用户密码和写入并存储在卡的安全区域中的用户数据。 使用与该卡相关联的密钥对该随机数进行加密,并且加密随机数由卡与相关联的加密数据一起存储。 随机数不存储在主机系统中。 每次查询卡片时都会产生一个新的随机数字。 在读取过程中,主机系统使用密钥解密加密的随机数,然后使用随机数来解密相关联的加密数据。 对读/写进程的访问受密码保护。
    • 7. 发明授权
    • High volume testing for USB electronic data flash cards
    • USB电子数据闪存卡的大容量测试
    • US07702984B1
    • 2010-04-20
    • US11626347
    • 2007-01-23
    • Charles C. LeeI-Kang YuEdward W. LeeAbraham C. MaMing-Shiang Shen
    • Charles C. LeeI-Kang YuEdward W. LeeAbraham C. MaMing-Shiang Shen
    • G06F11/00G11C29/00G11C16/04
    • G06F12/1416G06F21/32G06F21/78G07C9/00087G07C2009/00095H01R13/629
    • A high volume testing/formatting process is provided for Universal Serial Bus-based (USB-based) electronic data flash cards (USB devices) that meets the increasing demand for USB electronic data flash cards (USB devices). A test host is simultaneously coupled to the multiple USB devices (e.g., using a multi-port card reader or a probe fixture), a controller endpoint value is read from each of the USB devices and verified with a known good value, and then testing/formatting is performed on each of the USB devices by writing predetermined data into each USB device in a pipelined manner, then reading out and testing the predetermined data. In one embodiment, the test host implements a special a USB driver that blocks standard USB registration procedures upon detecting the plurality of USB devices. Control and/or boot code data are written onto the flash memory device (i.e., instead of being provided on a controller ROM).
    • 为通用串行总线(USB)电子数据闪存卡(USB设备)提供了大容量测试/格式化过程,可满足USB电子数据闪存卡(USB设备)日益增长的需求。 测试主机同时耦合到多个USB设备(例如,使用多端口读卡器或探头夹具),从每个USB设备读取控制器端点值,并用已知的良好值进行验证,然后测试 通过以流水线方式将预定数据写入每个USB设备,然后读出并测试预定数据,在每个USB设备上执行/格式化。 在一个实施例中,测试主机实现了一种特殊的USB驱动器,其在检测到多个USB设备时阻止标准USB注册过程。 控制和/或引导代码数据被写入快闪存储器件(即,不是设置在控制器ROM上)。
    • 8. 发明授权
    • Electronic data flash card with Reed Solomon error detection and correction capability
    • 电子数据闪存卡,具有Reed Solomon错误检测和校正功能
    • US07890846B2
    • 2011-02-15
    • US11739613
    • 2007-04-24
    • Charles C. LeeI-Kang YuAbraham C. MaMing-Shiang Shen
    • Charles C. LeeI-Kang YuAbraham C. MaMing-Shiang Shen
    • H03M13/00
    • H03M13/1545G06F11/1068G06F11/1076H03M13/153H03M13/1535H03M13/6561
    • One embodiment of the present includes a electronic data storage card having a Reed Solomon (RS) decoder having a syndrome calculator block responsive to a page of information, the page being organized into a plurality of data sections and the overhead being organized into a plurality of overhead sections. The syndrome calculator generates a syndrome for each of the data sections. The decoder further includes a root finder block responsive to the calculated syndrome and for generating at least two roots, a polynomial calculator block responsive to the at least two roots and operative to generate at least one error address, identifying a location in the data wherein the error lies, and an error symbol values calculator block coupled to the root finder and the polynomial calculator block and for generating a second error address, identifying a second location in the data wherein the error(s) lie.
    • 本发明的一个实施例包括具有Reed Solomon(RS)解码器的电子数据存储卡,该解码器具有响应于信息页的校正子计算器块,该页被组织成多个数据段,并且开销被组织成多个 架空部分。 综合征计算器为每个数据部分产生综合征。 解码器还包括响应于所计算的校正子并用于生成至少两个根的根取景器块,响应于至少两个根并且可操作地生成至少一个错误地址的多项式计算器块,识别数据中的位置,其中, 并且错误符号值计算器块耦合到根查找器和多项式计算器块,并用于产生第二错误地址,识别错误所在的数据中的第二位置。
    • 9. 发明授权
    • Flash memory controller for electronic data flash card
    • 闪存控制器,用于电子数据闪存卡
    • US07702831B2
    • 2010-04-20
    • US11466759
    • 2006-08-23
    • Abraham C. MaCharles C. LeeI-Kang YuEdward W. LeeMing-Shiang Shen
    • Abraham C. MaCharles C. LeeI-Kang YuEdward W. LeeMing-Shiang Shen
    • G06F13/12
    • G06F12/0246G06F12/1416G06F21/32G06F21/78G06F21/79G06K9/00087G06K19/07G06K19/07354G07C9/00087
    • An electronic data flash card is accessible by a host computer, and includes a processing unit connected to a flash memory device that stores a data file, and an input-output interface circuit activated so as to establish a communication with the host computer. In an embodiment, the electronic data flash card uses a USB input/output interface circuit for communication with the host computer. A flash memory controller includes an index for converting logical addresses sent by the host computer into physical addresses associated with sectors of the flash memory device. The index is controlled by arbitration logic referencing to values from various look up tables and valid data stored in the flash memory device. The flash memory controller further includes a first-in-first-out unit (FIFO) for recycling obsolete sectors of the flash memory device in the background process so that they are available for reprogramming.
    • 电子数据闪存卡可由主机访问,并且包括连接到存储数据文件的闪存设备的处理单元,以及被激活以便与主计算机建立通信的输入 - 输出接口电路。 在一个实施例中,电子数据闪存卡使用USB输入/输出接口电路与主计算机进行通信。 闪速存储器控制器包括用于将由主计算机发送的逻辑地址转换成与闪存器件的扇区相关联的物理地址的索引。 该索引由参考来自各种查找表中的值和存储在闪存设备中的有效数据的仲裁逻辑控制。 闪存控制器还包括先进先出单元(FIFO),用于在后台进程中回收闪速存储器件的过时扇区,使得它们可用于重新编程。