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1. 发明授权

US5280621A Personal computer having dedicated processors for peripheral devices interconnected to the CPU by way of a system control processor 失效
标题翻译：具有通过系统控制处理器与CPU互连的外围设备的专用处理器的个人计算机
公开(公告)号：US5280621A
公开(公告)日：1994-01-18
申请号：US19997
申请日：1993-02-17
申请人： Brian C. Barnes , Mark J. Foster , Lloyd W. Gauthier , Saifee Fakhruddin , David J. DeLisle , David R. Veit
发明人： Brian C. Barnes , Mark J. Foster , Lloyd W. Gauthier , Saifee Fakhruddin , David J. DeLisle , David R. Veit
IPC分类号： G06F13/12
CPC分类号： G06F13/124
摘要： A plurality of processors form a network used to communicate with one or more peripheral devices and the system control processor. One processor is dedicated to at least one peripheral device. Since the system control processor is not burdened with the relatively slow communications protocol with the peripheral devices, it is free to do other tasks which improves the overall system performance. Communication protocol between the dedicated processors allows for local and global communication.
摘要翻译：多个处理器形成用于与一个或多个外围设备和系统控制处理器进行通信的网络。一个处理器专用于至少一个外围设备。由于系统控制处理器不会与外围设备相对较慢的通信协议负担，因此可以自由地执行其他任务，从而提高整个系统的性能。专用处理器之间的通信协议允许本地和全球通信。

2. 发明授权

US5136694A Method and apparatus facilitating communication between two keyboards and a single processor 失效
标题翻译：促进两个键盘和单个处理器之间的通信的方法和装置
公开(公告)号：US5136694A
公开(公告)日：1992-08-04
申请号：US334841
申请日：1989-04-07
申请人： Steven L. Belt , Mark A. Ruthenbeck , Mark J. Foster , Brian C. Barnes , Randy J. VanderHeyden
发明人： Steven L. Belt , Mark A. Ruthenbeck , Mark J. Foster , Brian C. Barnes , Randy J. VanderHeyden
IPC分类号： G06F3/02
CPC分类号： G06F3/0227 , G06F3/021
摘要： A computing device includes a system control processor, a built-in keyboard having a plurality of keys, a connector which facilitates connection of an external keyboard or keypad to the device, an electronic switch which is controlled by the internal keyboard processor and can electrically couple the connector to the system control processor. The internal keyboard processor monitors signals from the system control processor, connector and internal keyboard keys in order to open and close the analog switch so as to facilitate transfers between the system control processor and the internal keyboard through itself, and transfers between the system control processor and an external keyboard through the electronic switch.
摘要翻译：计算设备包括系统控制处理器，具有多个键的内置键盘，便于将外部键盘或小键盘连接到设备的连接器，由内部键盘处理器控制并可以电耦合的电子开关连接到系统控制处理器。内部键盘处理器监视来自系统控制处理器，连接器和内部键盘键的信号，以便打开和关闭模拟开关，以便于自身在系统控制处理器和内部键盘之间传输，并在系统控制处理器和通过电子开关的外部键盘。

3. 发明授权

US08135962B2 System and method providing region-granular, hardware-controlled memory encryption 有权
标题翻译：系统和方法提供区域细粒度的硬件控制的存储器加密
公开(公告)号：US08135962B2
公开(公告)日：2012-03-13
申请号：US10108253
申请日：2002-03-27
申请人： Geoffrey S. Strongin , Brian C. Barnes , Rodney Schmidt
发明人： Geoffrey S. Strongin , Brian C. Barnes , Rodney Schmidt
IPC分类号： G06F11/30
CPC分类号： G06F21/6218 , G06F12/1009 , G06F12/1408 , G06F12/1441 , G06F2221/2143
摘要： A memory, system, and method for providing security for data stored within a memory and arranged within a plurality of memory regions. The method includes receiving an address within a selected memory region and using the address to access an encryption indicator. The encryption indicator indicates whether data stored in the selected memory page are encrypted. The method also includes receiving a block of data from the selected memory region and the encryption indicator and decrypting the block of data dependent upon the encryption indicator.
摘要翻译：一种用于为存储在存储器中并被布置在多个存储器区域内的数据提供安全性的存储器，系统和方法。该方法包括在所选择的存储器区域内接收地址并使用地址来访问加密指示符。加密指示符指示存储在所选择的存储器页面中的数据是否被加密。该方法还包括从所选择的存储器区域和加密指示符接收数据块，并依赖于加密指示符解密数据块。

4. 发明授权

US07383432B1 Software modem with hidden authentication commands 有权
标题翻译：带有隐藏认证命令
公开(公告)号：US07383432B1
公开(公告)日：2008-06-03
申请号：US09901531
申请日：2001-07-09
申请人： Brian C. Barnes , David W. Smith , Terry L. Cole , Rodney Schmidt , Geoffrey S. Strongin , Michael Barclay
发明人： Brian C. Barnes , David W. Smith , Terry L. Cole , Rodney Schmidt , Geoffrey S. Strongin , Michael Barclay
IPC分类号： H04L9/00 , G06F7/04
CPC分类号： H04L63/0428 , G06F21/55 , H04L63/08
摘要： A communications system includes a physical layer hardware unit and a processing unit. The physical layer hardware unit is adapted to communicate data over a communications channel in accordance with assigned transmission parameters. The physical layer hardware unit is adapted to receive an incoming signal over the communications channel and sample the incoming signal to generate a digital received signal. The processing unit is adapted to execute a software driver including program instructions adapted to extract control codes from the digital received signal, generate an authentication code, and transfer the control codes and the authentication code to the physical layer hardware unit. The physical layer hardware unit is adapted to signal a security violation in response to the control codes being inconsistent with the authentication code. A method for identifying security violations in a transceiver includes receiving digital data over a communications channel; extracting control codes from the digital received signal; generating an authentication code; transferring the control codes and the authentication code to a physical layer hardware unit of the transceiver; configuring assigned transmission parameters of the physical layer hardware unit based on the control codes; and signaling a security violation in response to the control codes being inconsistent with the authentication code.
摘要翻译：通信系统包括物理层硬件单元和处理单元。物理层硬件单元适于根据分配的传输参数在通信信道上传送数据。物理层硬件单元适于通过通信信道接收输入信号并对输入信号进行采样以产生数字接收信号。所述处理单元适于执行软件驱动器，所述软件驱动器包括适于从所述数字接收信号中提取控制代码的程序指令，生成认证代码，以及将所述控制代码和认证代码传送到所述物理层硬件单元。物理层硬件单元适于响应于与认证码不一致的控制码来发出安全违规信号。用于识别收发器中的安全违规的方法包括通过通信信道接收数字数据; 从数字接收信号中提取控制码; 生成认证码; 将所述控制代码和所述认证码传送到所述收发器的物理层硬件单元; 基于控制码配置物理层硬件单元的分配传输参数; 并且响应于与认证码不一致的控制代码发出安全冲突。

5. 发明授权

US07197768B2 Software modem for communicating data using encrypted data and unencrypted control codes 有权
标题翻译：用于使用加密数据和未加密的控制代码传送数据的软件调制解调器
公开(公告)号：US07197768B2
公开(公告)日：2007-03-27
申请号：US09901329
申请日：2001-07-09
申请人： Terry L. Cole , David W. Smith , Rodney Schmidt , Geoffrey S. Strongin , Brian C. Barnes , Michael Barclay
发明人： Terry L. Cole , David W. Smith , Rodney Schmidt , Geoffrey S. Strongin , Brian C. Barnes , Michael Barclay
IPC分类号： G06F7/04 , H04L9/00 , H04L9/32
CPC分类号： H04L63/04 , H04L63/08
摘要： A communications system includes a physical layer hardware unit and a processing unit. The physical layer hardware unit is adapted to communicate data over a communications channel. The physical layer hardware unit is adapted to receive unencrypted control codes and encrypted user data over the communications channel and transmit an upstream data signal over the communications channel based on the control codes. The processing unit is adapted to execute a software driver for interfacing with the physical layer hardware unit. The software driver includes program instructions for implementing a protocol layer to decrypt the user data and provide the upstream data to the physical layer hardware unit. A method for configuring a transceiver includes receiving unencrypted control codes over a communications channel; receiving encrypted user data over the communications channel; and transmitting an upstream signal over the communications channel based on transmission assignments defined by the control codes.
摘要翻译：通信系统包括物理层硬件单元和处理单元。物理层硬件单元适于通过通信信道传送数据。物理层硬件单元适于通过通信信道接收未加密的控制代码和加密的用户数据，并且基于控制代码通过通信信道发送上行数据信号。处理单元适于执行用于与物理层硬件单元接口的软件驱动器。软件驱动器包括用于实现协议层以解密用户数据并将上行数据提供给物理层硬件单元的程序指令。一种用于配置收发器的方法包括：在通信信道上接收未加密的控制码; 通过通信信道接收加密的用户数据; 以及基于由所述控制码定义的传输分配，通过所述通信信道发送上行信号。

6. 发明授权

US06842803B2 Computer system with privileged-mode modem driver 失效
标题翻译：具有特权模式调制解调器驱动程序的计算机系统
公开(公告)号：US06842803B2
公开(公告)日：2005-01-11
申请号：US09901503
申请日：2001-07-09
申请人： Rodney Schmidt , Geoffrey S. Strongin , David W. Smith , Brian C. Barnes , Terry L. Cole , Michael Barclay
发明人： Rodney Schmidt , Geoffrey S. Strongin , David W. Smith , Brian C. Barnes , Terry L. Cole , Michael Barclay
IPC分类号： H04L29/10 , G06F12/14 , H04L29/06 , G06F13/12
CPC分类号： H04L63/104 , G06F12/1491
摘要： A communications system includes physical layer hardware and a processing unit. The physical layer hardware is adapted to communicate data over a communications channel in accordance with a plurality of control codes. The physical layer hardware is adapted to demodulate an incoming analog signal to generate a digital receive signal and modulate a digital transmit signal to generate an analog transmit signal. The processing unit is adapted to execute a privileged driver for interfacing with the physical layer hardware. The privileged driver includes program instructions for implementing a protocol layer to decode the digital receive signal, encode the digital transmit signal, and configure the physical layer hardware for receipt of the digital receive signal and transmission of the digital transmit signal based on the plurality of control codes. A method for configuring a transceiver includes demodulating an incoming analog signal to generate a digital receive signal based on a plurality of control codes; modulating a digital transmit signal to generate an analog transmit signal based on the control codes; and executing a privileged driver for configuring the plurality of control codes.
摘要翻译：通信系统包括物理层硬件和处理单元。物理层硬件适于根据多个控制码在通信信道上传送数据。物理层硬件适于解调输入模拟信号以产生数字接收信号，并且调制数字发射信号以产生模拟发射信号。处理单元适于执行用于与物理层硬件进行接口的特权驱动程序。特权驱动器包括用于实现解码数字接收信号的协议层，编码数字发射信号以及配置用于接收数字接收信号的物理层硬件和基于多个控制的数字发射信号的传输的程序指令代码。一种用于配置收发器的方法，包括：解调输入的模拟信号以产生基于多个控制码的数字接收信号; 调制数字发射信号以根据所述控制码产生模拟发射信号; 以及执行用于配置所述多个控制代码的特权驱动器。

7. 发明授权

US07865948B1 Method and apparatus for restricted execution of security sensitive instructions 有权
标题翻译：用于限制执行安全敏感指令的方法和装置
公开(公告)号：US07865948B1
公开(公告)日：2011-01-04
申请号：US10005248
申请日：2001-12-03
申请人： Brian C. Barnes , Rodney W. Schmidt , Geoffrey S. Strongin
发明人： Brian C. Barnes , Rodney W. Schmidt , Geoffrey S. Strongin
IPC分类号： H04L29/06 , G06F21/00
CPC分类号： G06F9/30145 , G06F9/30181 , G06F21/52 , G06F21/53 , G06F21/54 , G06F2221/2105 , G06F2221/2141 , G06F2221/2149
摘要： A method and apparatus for restricting the execution of security sensitive instructions. A first security identification (ID) is associated with each of a plurality of instructions or a set of instructions that are to be executed by a processor. Software code running on the processor requests to execute at least one of the plurality of instructions or set of instructions. The processor obtains a second security ID associated with the software code running thereon and compares the second security ID with the first security ID. The processor executes the requested instruction or set of instructions providing that the second security ID matches the first security ID.
摘要翻译：一种限制安全敏感指令执行的方法和装置。第一安全标识（ID）与要由处理器执行的多个指令或一组指令中的每一个相关联。在处理器上运行的软件代码请求执行多个指令或指令集中的至少一个。处理器获得与其上运行的软件代码相关联的第二安全ID，并将第二安全ID与第一安全ID进行比较。处理器执行请求的指令或指令集，条件是第二安全ID与第一安全ID相匹配。

8. 发明授权

US07451324B2 Secure execution mode exceptions 有权
标题翻译：安全执行模式例外
公开(公告)号：US07451324B2
公开(公告)日：2008-11-11
申请号：US10161500
申请日：2002-05-31
申请人： Rodney W. Schmidt , Brian C. Barnes , Geoffrey S. Strongin , David S. Christie
发明人： Rodney W. Schmidt , Brian C. Barnes , Geoffrey S. Strongin , David S. Christie
IPC分类号： G06F21/22
CPC分类号： G06F21/53 , G06F21/71 , G06F2221/2153
摘要： A method and system for handling a security exception. The method includes creating a security exception stack frame in secure memory at a base address. The method also includes writing a faulting code sequence address and one or more register values into the security exception stack frame, and executing a plurality of security exception instructions.
摘要翻译：一种处理安全异常的方法和系统。该方法包括在基地址的安全存储器中创建安全异常堆栈帧。该方法还包括将故障代码序列地址和一个或多个寄存器值写入到安全异常堆栈帧中，以及执行多个安全异常指令。

9. 发明授权

US06854039B1 Memory management system and method providing increased memory access security 失效
标题翻译：内存管理系统和方法提供更高的内存访问安全性
公开(公告)号：US06854039B1
公开(公告)日：2005-02-08
申请号：US10005271
申请日：2001-12-05
申请人： Geoffrey S. Strongin , Brian C. Barnes , Rodney W. Schmidt
发明人： Geoffrey S. Strongin , Brian C. Barnes , Rodney W. Schmidt
IPC分类号： G06F12/14 , G06F12/00
CPC分类号： G06F12/145 , G06F12/1491
摘要： A memory management unit (MMU) is disclosed for managing a memory storing data arranged within a multiple memory pages. The memory management unit includes a security check receiving a physical address within a selected memory page, and security attributes of the selected memory page. The security check unit uses the physical address to access one or more security attribute data structures located in the memory to obtain an additional security attribute of the selected memory page. The security check unit generates a fault signal dependent upon the security attributes of selected memory page and the additional security attribute of the selected memory page. The security attributes of the selected memory page may include a user/supervisor (U/S) bit and a read/write (R/W) bit as defined by the ×86 processor architecture. The one or more security attribute data structures may include a security attribute table directory and one or more security attribute tables. The security attribute table directory may include multiple entries, and each entry of the security attribute table directory may include a present bit and a security attribute table base address field. A central processing unit (CPU) is described including the memory management unit (MMU), and a computer system is disclosed including the CPU. A method is described for providing access security for a memory used to store data arranged within multiple memory pages.
摘要翻译：公开了一种用于管理存储多个存储器页中布置的数据的存储器管理单元（MMU）。存储器管理单元包括接收所选存储器页面内的物理地址的安全检查以及所选存储器页的安全属性。安全检查单元使用物理地址来访问位于存储器中的一个或多个安全属性数据结构，以获得所选存储器页的附加安全属性。安全检查单元根据所选择的存储器页面的安全属性和所选择的存储器页面的附加安全属性生成故障信号。所选存储器页面的安全属性可以包括由x86处理器架构定义的用户/管理器（U / S）位和读/写（R / W）位。一个或多个安全属性数据结构可以包括安全属性表目录和一个或多个安全属性表。安全属性表目录可以包括多个条目，并且安全属性表目录的每个条目可以包括当前位和安全属性表基地址字段。描述了包括存储器管理单元（MMU）的中央处理单元（CPU），并且公开了包括CPU的计算机系统。描述了一种用于提供用于存储布置在多个存储器页内的数据的存储器的访问安全性的方法。

10. 发明授权

US06205467B1 Microprocessor having a context save unit for saving context independent from interrupt requests 失效
标题翻译：微处理器具有上下文保存单元，用于独立于中断请求来保存上下文
公开(公告)号：US06205467B1
公开(公告)日：2001-03-20
申请号：US08557312
申请日：1995-11-14
申请人： J. Andrew Lambrecht , Brian C. Barnes
发明人： J. Andrew Lambrecht , Brian C. Barnes
IPC分类号： G06F900
CPC分类号： G06F9/3863 , G06F9/461
摘要： A microprocessor including a context save unit is provided. The context save unit is configured to periodically perform context saves. When the microprocessor receives an interrupt signal, the microprocessor enters the interrupt service routine without performing a context save. After completing execution of the interrupt service routine, the microprocessor restores the most recently saved context and begins executing the task at that saved context. The interrupt service routine is entered rapidly but the interrupt service routine does not include instructions for saving the registers which it utilizes to perform its function. The context save unit is configured to perform a context save at the occurrence of a variety of events. A fixed or variable time interval may be selected, and each interval includes several options.
摘要翻译：提供了包括上下文保存单元的微处理器。上下文保存单元配置为定期执行上下文保存。当微处理器接收到中断信号时，微处理器进入中断服务程序，而不执行上下文保存。完成中断服务程序的执行后，微处理器恢复最近保存的上下文，并开始在保存的上下文中执行任务。快速进入中断服务程序，但中断服务程序不包含用于保存用于执行其功能的寄存器的指令。上下文保存单元被配置为在发生各种事件时执行上下文保存。可以选择固定或可变时间间隔，并且每个间隔包括若干选项。

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