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    • 2. 发明授权
    • Method and system for trusted/untrusted digital signal processor debugging operations
    • 信任/不信任数字信号处理器调试操作的方法和系统
    • US08533530B2
    • 2013-09-10
    • US11560332
    • 2006-11-15
    • Lucian CodrescuWilliam C. AndersonSuresh VenkumahantiLouis Achille GianniniManojkumar PylaXufeng Chen
    • Lucian CodrescuWilliam C. AndersonSuresh VenkumahantiLouis Achille GianniniManojkumar PylaXufeng Chen
    • G06F11/00
    • G06F11/3656
    • Techniques for the design and use of a digital signal processor, including (but not limited to) for processing transmissions in a communications (e.g., CDMA) system. Trusted and untrusted debugging operational control occurs in operating a core processor associated with the digital signal processor. A debugging process within a debugging mechanism associates with the core processor. The core processor process determines the origin of debugging control as trusted debugging control or untrusted debugging control. In the event of trusted debugging control, the core processor process provides to the trusted debugging control a first set of features and privileges. Alternatively, in the event that debugging control is untrusted debugging control, the core processor process provides the untrusted debugging control a second restricted set of features and privileges, all for maintaining security and proper operation of the core processor process.
    • 用于设计和使用数字信号处理器的技术,包括(但不限于)用于处理通信(例如,CDMA)系统中的传输。 在操作与数字信号处理器相关联的核心处理器时,发生信任和不信任的调试操作控制。 调试机制中的调试过程与核心处理器相关联。 核心处理器过程将调试控制的起源确定为可信的调试控制或不可信的调试控制。 在受信任的调试控制的情况下,核心处理器进程向受信任的调试控制提供了第一组功能和特权。 或者,如果调试控制是不可信任的调试控制,则核心处理器进程将不可信任的调试控制提供第二个受限制的特征和特权集,以保持核心处理器进程的安全性和正常运行。
    • 3. 发明申请
    • Large Ram Cache
    • 大Ram缓存
    • US20120297256A1
    • 2012-11-22
    • US13112132
    • 2011-05-20
    • Erich James PlondkeLucian CodrescuWilliam C. Anderson
    • Erich James PlondkeLucian CodrescuWilliam C. Anderson
    • G06F12/00G06F11/16G06F12/08
    • G06F12/0893G06F11/1064G06F12/0646Y02D10/13
    • Systems and method for configuring a page-based memory device without pre-existing dedicated metadata. The method includes reading metadata from a metadata portion of a page of the memory device, and determining a characteristic of the page based on the metadata. The memory device may be configured as a cache. The metadata may include address tags, such that determining the characteristic may include determining if desired information is present in the page, and reading the desired information if it is determined to be present in the page. The metadata may also include error-correcting code (ECC), such that determining the characteristic may include detecting errors present in data stored in the page. The metadata may further include directory information, memory coherency information, or dirty/valid/lock information.
    • 用于配置基于页面的存储设备而不具有预先存在的专用元数据的系统和方法。 该方法包括从存储设备的页面的元数据部分读取元数据,以及基于元数据确定页面的特性。 存储器件可以被配置为高速缓存。 元数据可以包括地址标签,使得确定特征可以包括确定页面中是否存在所需信息,并且如果确定存在于页面中则读取所需信息。 元数据还可以包括纠错码(ECC),使得确定特性可以包括检测存在于页面中的数据中存在的错误。 元数据还可以包括目录信息,存储器一致性信息或脏/有效/锁定信息。
    • 5. 发明授权
    • Method and system for encoding variable length packets with variable instruction sizes
    • 用可变指令大小编码可变长度数据包的方法和系统
    • US07526633B2
    • 2009-04-28
    • US11088607
    • 2005-03-23
    • Lucian CodrescuErich PlondkeMuhammad AhmedWilliam C. Anderson
    • Lucian CodrescuErich PlondkeMuhammad AhmedWilliam C. Anderson
    • G06F9/30G06F15/00
    • G06F9/30149G06F9/3853
    • Techniques for processing transmissions in a communications (e.g., CDMA) system. The method and system encode and process instructions of mixed lengths (e.g., 16 bits and 32 bits) and instruction packets including instructions of mixed lengths. This includes encoding a plurality of instructions of a first length and a plurality of instructions of a second length. The method and system encode a header having at least one instruction length bit. The instruction bit distinguishes between instructions of the first length and instructions of the second length for an associated DSP to process in a mixed stream. The method and system distinguish between the instructions of the first length and the instructions of the second length according to the contents of the instruction length bits. The header further includes bits for distinguishing between instructions of varying lengths in an instruction packet.
    • 用于在通信(例如,CDMA)系统中处理传输的技术。 该方法和系统编码和处理混合长度(例如,16位和32位)的指令以及包括混合长度指令的指令包。 这包括编码第一长度的多个指令和第二长度的多个指令。 该方法和系统对具有至少一个指令长度位的报头进行编码。 指令位区分第一长度的指令和第二长度的指令,以使相关的DSP在混合流中进行处理。 方法和系统根据指令长度位的内容区分第一长度的指令和第二长度的指令。 标题还包括用于区分指令包中不同长度的指令的位。
    • 8. 发明授权
    • Method and data processing system for arbitrary precision on numbers
    • 数字任意精度的方法和数据处理系统
    • US5619711A
    • 1997-04-08
    • US267740
    • 1994-06-29
    • William C. Anderson
    • William C. Anderson
    • G06F7/57G06F9/30G06F15/00
    • G06F7/483G06F9/30025G06F2207/382
    • A data processing system 10 comprises an arbitrary precision number C++ class program code 18, which incorporates arbitrary precision arithmetic. The arbitrary precision number program code 18 resides in a client program 14 and never lose bits of precision by maintaining an internal data structure 16, which holds the data, and by manipulating that data by operators and methods which the program code 18 defines. The program code 18, which is embedded in a client program 14, comprises a method that uses "lazy" storage allocation for transparent data management for the arbitrary precision number in the internal data array 22, a "lazy" arithmetic evaluation for avoiding more costly arithmetic operations, a width method for an optimized significant bit calculation, and a method for efficient determining the number of trailing zeros method for more efficient IEEE floating point math emulation operations.
    • 数据处理系统10包括任意精度数C ++类程序代码18,其包含任意精度算术。 任意精度数程序代码18驻留在客户端程序14中,并且通过维护保存数据的内部数据结构16以及通过程序代码18定义的操作符和方法操纵数据,而不会丢失精度位。 嵌入在客户机程序14中的程序代码18包括使用“惰性”存储分配用于内部数据阵列22中的任意精度数字的透明数据管理的方法,用于避免更昂贵的“懒惰”算术评估 算术运算,用于优化的有效位计算的宽度方法,以及用于有效确定用于更有效的IEEE浮点数学仿真操作的尾随零方法的数量的方法。