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    • 4. 发明授权
    • Memory organization allowing single cycle pointer addressing where the address of the pointer is also contained in one of the memory locations
    • 存储器组织允许单周期指针寻址,其中指针的地址也包含在其中一个存储单元中
    • US07305543B2
    • 2007-12-04
    • US10566514
    • 2004-07-27
    • Gregory GoodhueAta KhanZhimin Ding
    • Gregory GoodhueAta KhanZhimin Ding
    • G06F9/00
    • G06F9/321G06F9/3012G06F9/3013G06F9/3016G06F9/35
    • All pointer-based accesses require first that the value contained in a pointer register to be read and then that value be used as an address to the appropriate region in random access memory (RAM). As implemented today, this requires two memory read access cycles, each of which takes at least one clock cycle and therefore this implementation does not allow single cycle operation. In accordance with an embodiment of the invention, when an access is performed to pointer memory to read the contents of a pointer, it is the shadow memory that is actually read and that returns the pointer value. Since the shadow memory is made up of pointer registers, a read access involves multiplexing out of appropriate data for the pointer address from these pointer registers to form a target pointer address. This target pointer address is then used as an address to access RAM without the overhead of a clock, since the register access is purely combinatorial and does not require clock-phase related timing as does access to the RAM.
    • 所有基于指针的访问首先需要读取指针寄存器中包含的值,然后将该值用作随机存取存储器(RAM)中适当区域的地址。 如今所实现的,这需要两个存储器读取访问周期,每个存储器访问周期至少需要一个时钟周期,因此该实现不允许单周期操作。 根据本发明的实施例,当对指针存储器执行访问以读取指针的内容时,实际上是读取并且返回指针值的影子存储器。 由于阴影存储器由指针寄存器组成,所以读取访问涉及将来自这些指针寄存器的指针地址的适当数据进行复用以形成目标指针地址。 然后,该目标指针地址用作访问RAM的地址,而不需要时钟的开销,因为寄存器访问是纯组合的,并且不需要与访问RAM相关的时钟相关定时。
    • 6. 发明申请
    • Removable Card And A Mobile Wireless Communication Device
    • 可拆卸卡和移动无线通信设备
    • US20090075698A1
    • 2009-03-19
    • US11855846
    • 2007-09-14
    • Zhimin DingRichard M. MorleyStephen JohnstonBing YehJohn E. Berg
    • Zhimin DingRichard M. MorleyStephen JohnstonBing YehJohn E. Berg
    • H04B1/38
    • H04W8/245H04W48/08H04W48/18H04W88/06
    • A removable card for use with a mobile wireless communication device has a processor and a non-volatile memory, connected to the processor. The memory has programming code stored configured to be executed by the processor and is operable in one of two modes. In a first mode the card is connected to the device with the card storing information received wirelessly by the device from the Internet. In a second mode the card is connected to a network portal device, which is connected to the Internet, with the card storing information received through the network portal device from the Internet. In another embodiment, the removable card has electrical connections for connecting to a mobile wireless communicating device for use by a user to connect to the Internet. The memory has two portions: a first portion and a second portion with the partitioning being alterable. The processor restricts access to the first portion by the user, while grants access to the second portion to the user. Finally, the present invention relates to a mobile wireless communication device.
    • 用于移动无线通信设备的可拆卸卡具有连接到处理器的处理器和非易失性存储器。 存储器具有被配置为由处理器执行并且可以以两种模式之一操作的存储的编程代码。 在第一模式中,卡被连接到设备,其中卡存储由设备从因特网无线地接收到的信息。 在第二模式中,该卡连接到连接到互联网的网络入口设备,其中卡从存储通过网络入口设备从因特网接收的信息。 在另一个实施例中,可拆卸卡具有用于连接到移动无线通信设备的电连接,供用户使用以连接到因特网。 存储器具有两部分:第一部分和第二部分,其中分割是可改变的。 处理器限制用户对第一部分的访问,同时向用户授予对第二部分的访问。 最后,本发明涉及移动无线通信设备。
    • 8. 发明授权
    • Secure removable card having a plurality of integrated circuit dies
    • 具有多个集成电路管芯的可拆卸卡
    • US07979717B2
    • 2011-07-12
    • US12100400
    • 2008-04-09
    • Zhimin Ding
    • Zhimin Ding
    • G06F21/00H04M1/00
    • H04L9/0825H04L9/0894H04L2209/80
    • A secure removable card has electrical connections for communication therewith. The card comprises a first integrated circuit die, with the first die including a processor. The card has a second integrated circuit die, with the second die including a non-volatile memory for storing a secret key, and a controller for controlling the operation of the non-volatile memory. A bus connects the first die with the second die. The processor can generate a key pair, having a public key portion and a private key portion upon power up, and transfers the public key portion across the bus to the second die. The controller can receive the public key and encrypt the secret key with the public key to generate a first encrypted key, and can transfer the first encrypted key across the bus to the first die. The processor can receive the first encrypted key and can decrypt the first encrypted key to recover the secret key, and can encrypt data with the secret key for communicating along the electrical connections external to the card.
    • 安全的可拆卸卡具有用于与之通信的电连接。 该卡包括第一集成电路管芯,其中第一管芯包括处理器。 卡具有第二集成电路管芯,第二管芯包括用于存储秘密密钥的非易失性存储器,以及用于控制非易失性存储器的操作的控制器。 总线连接第一个模具和第二个模具。 处理器可以在上电时生成具有公钥部分和私钥部分的密钥对,并且将公共密钥部分跨越总线传送到第二管芯。 控制器可以接收公开密钥并用公开密钥加密秘密密钥,以产生第一个加密密钥,并且可以将总线上的第一加密密钥传输到第一个管芯。 处理器可以接收第一加密密钥并且可以解密第一加密密钥以恢复秘密密钥,并且可以使用秘密密钥加密数据,以沿着卡外部的电连接进行通信。
    • 9. 发明申请
    • SECURE REMOVABLE CARD HAVING A PLURALITY OF INTEGRATED CIRCUIT DIES
    • 安全可拆卸卡片,具有多种集成电路
    • US20090257590A1
    • 2009-10-15
    • US12100400
    • 2008-04-09
    • Zhimin Ding
    • Zhimin Ding
    • H04L9/30
    • H04L9/0825H04L9/0894H04L2209/80
    • A secure removable card has electrical connections for communication therewith. The card comprises a first integrated circuit die, with the first die including a processor. The card has a second integrated circuit die, with the second die including a non-volatile memory for storing a secret key, and a controller for controlling the operation of the non-volatile memory. A bus connects the first die with the second die. The processor can generate a key pair, having a public key portion and a private key portion upon power up, and transfers the public key portion across the bus to the second die. The controller can receive the public key and encrypt the secret key with the public key to generate a first encrypted key, and can transfer the first encrypted key across the bus to the first die. The processor can receive the first encrypted key and can decrypt the first encrypted key to recover the secret key, and can encrypt data with the secret key for communicating along the electrical connections external to the card.
    • 安全的可拆卸卡具有用于与之通信的电连接。 该卡包括第一集成电路管芯,其中第一管芯包括处理器。 卡具有第二集成电路管芯,第二管芯包括用于存储秘密密钥的非易失性存储器,以及用于控制非易失性存储器的操作的控制器。 总线连接第一个模具和第二个模具。 处理器可以在上电时生成具有公钥部分和私钥部分的密钥对,并且将公共密钥部分跨越总线传送到第二管芯。 控制器可以接收公开密钥并用公开密钥加密秘密密钥,以产生第一个加密密钥,并且可以将总线上的第一加密密钥传输到第一个管芯。 处理器可以接收第一加密密钥并且可以解密第一加密密钥以恢复秘密密钥,并且可以使用秘密密钥加密数据,以沿着卡外部的电连接进行通信。
    • 10. 发明申请
    • Integrated microcontroller and memory with secure interface between system program and user operating system and application
    • 集成微控制器和内存,具有系统程序与用户操作系统和应用之间的安全接口
    • US20060218425A1
    • 2006-09-28
    • US11345074
    • 2006-01-31
    • Zhimin DingShane HollmerPhilip Barnett
    • Zhimin DingShane HollmerPhilip Barnett
    • G06F1/00
    • G06F21/79G06F21/6218G06F21/74
    • An integrated circuit device has a processing unit, a memory management unit, and a memory. The memory management unit is interposed between the memory and the processing unit for controlling access to the memory by the processing unit in one of three modes. In a first mode, called the system mode, the processing unit can access a system program stored in the memory for controlling the resources of the integrated circuit device. In a second mode, called the kernel mode, the processing unit can access an operating system program stored in the memory for controlling the of the integrated circuit device, limited by the system program. Finally in a third mode, called the user mode, the processing unit can access an application program stored in the memory for controlling the resources of the integrated circuit device, limited by the operating system program. In another aspect of the invention, when the processing unit accesses either the operating system program or the application program (herein: “non-system program”), the execution of the non-system program can cause a system interrupt causing program execution to revert to the system mode, but to a specified entry address of the system program, wherein after processing the system interrupt, operation returns to the non-system program in either the kernel mode or the user mode.
    • 集成电路装置具有处理单元,存储器管理单元和存储器。 存储器管理单元插入在存储器和处理单元之间,用于以三种模式之一控制处理单元对存储器的访问。 在被称为系统模式的第一模式中,处理单元可以访问存储在存储器中的用于控制集成电路装置的资源的系统程序。 在称为内核模式的第二模式中,处理单元可以访问存储在存储器中的用于控制由系统程序限制的集成电路装置的操作系统程序。 最后,在称为用户模式的第三模式中,处理单元可以访问存储在存储器中的应用程序,用于控制由操作系统程序限制的集成电路设备的资源。 在本发明的另一方面,当处理单元访问操作系统程序或应用程序(这里为“非系统程序”)时,非系统程序的执行可能导致导致程序执行的系统中断恢复 到系统模式,但是指向系统程序的指定输入地址,其中在处理系统中断之后,操作以内核模式或用户模式返回到非系统程序。