Stack-memory-based writable instruction set computer having a single
data bus
    1.
    发明授权
    Stack-memory-based writable instruction set computer having a single data bus 失效
    具有单个数据总线的基于堆栈存储器的可写指令集计算机

    公开(公告)号:US5053952A

    公开(公告)日:1991-10-01

    申请号:US58737

    申请日:1987-06-05

    CPC classification number: G06F9/4426 G06F9/38

    Abstract: A computer is provided as an add-on processor for attachment to a host computer. Included are a single data bus, a 32-bit arithmetic logic unit, a data stack, a return stack, a main program memory, data registers, program memory addressing logic, micro-program memory, and a micro-instruction register. Each machine instruction contains an opcode as well as a next address field and subroutine call/return or unconditional branching information. The return address stack, memory addressing logic, program memory, and microcoded control logic are separated from the data bus to provide simultaneous data operations with program control flow processing and instruction fetching and decoding. Subroutine calls, subroutine returns, and unconditional branches are processed with a zero execution time cost. Program memory may be written as either bytes or full words without read/modify/write operations. The top of data stack ALU register may be exchanged with other registers in two clock cycles instead of the normal three cycles. MVP-FORTH is used for programming a microcode assembler, a cross-compiler, a set of diagnostic programs, and microcode.

    Abstract translation: 提供计算机作为用于连接到主计算机的附加处理器。 包括单个数据总线,32位算术逻辑单元,数据堆栈,返回堆栈,主程序存储器,数据寄存器,程序存储器寻址逻辑,微程序存储器和微指令寄存器。 每个机器指令包含操作码以及下一个地址字段和子程序调用/返回或无条件分支信息。 返回地址堆栈,存储器寻址逻辑,程序存储器和微编码控制逻辑与数据总线分离,以提供与程序控制流程处理和指令获取和解码的同时数据操作。 子程序调用,子程序返回和无条件分支以零执行时间成本进行处理。 程序存储器可以写入字节或全字,而无需读/写/写操作。 数据堆栈ALU寄存器的顶部可以在两个时钟周期内与其他寄存器交换,而不是正常的三个周期。 MVP-FORTH用于编程微代码汇编器,交叉编译器,一组诊断程序和微代码。

    Elevator level control system using elevator/landing gap as a reflection
duct
    2.
    发明授权
    Elevator level control system using elevator/landing gap as a reflection duct 失效
    电梯梯级控制系统采用电梯/着陆间隙作为反射管

    公开(公告)号:US5659159A

    公开(公告)日:1997-08-19

    申请号:US357690

    申请日:1994-12-16

    CPC classification number: B66B1/40 Y02B50/127

    Abstract: An emitter and a plurality of sensors and are used to detect the relative positions between an elevator platform and landing sill. The emitters radiate energy through a reflection duct formed between the elevator platform and the landing sill. The plurality of sensors monitor the reflection duct so that radiated energy is detected. The sensors provide level signals in response to the radiated energy. A means responsive to the level signals determines when the platform is level with respect to the landing sill.

    Abstract translation: 发射器和多个传感器,用于检测电梯平台和降落台槛之间的相对位置。 发射器通过形成在电梯平台和降落台槛之间的反射管辐射能量。 多个传感器监视反射管,从而检测辐射能。 传感器响应辐射能量提供电平信号。 响应于电平信号的装置确定平台何时相对于着陆台阶平坦。

    Pseudorandom composition-based cryptographic authentication process
    4.
    发明授权
    Pseudorandom composition-based cryptographic authentication process 失效
    基于伪随机组合的加密认证过程

    公开(公告)号:US5649014A

    公开(公告)日:1997-07-15

    申请号:US537487

    申请日:1995-10-02

    Abstract: The pseudorandom process iteratively applies a selected CRC encryption process on the information to be encrypted. The encryption process is selected by testing one of the digits comprising the number to be encrypted. A first encryption process is used if the tested digit is a 1; a second encryption process is used if the tested digit is a 0. The process is repeated a plurality of times, e.g. once for each digit in the number to be encrypted, resulting in a highly encrypted value that is not easily reverse engineered by chosen or known plaintext attack.

    Abstract translation: 伪随机过程对要加密的信息进行迭代应用选择的CRC加密处理。 通过测试包括要加密的号码的数字之一来选择加密过程。 如果测试数字为1,则使用第一个加密过程; 如果测试数字为0,则使用第二加密处理。该过程重复多次,例如, 一次对于要加密的号码中的每个数字,导致高度加密的值不容易被选择或已知的明文攻击逆向工程。

    Cryptographic authentication of transmitted messages using pseudorandom
numbers
    5.
    发明授权
    Cryptographic authentication of transmitted messages using pseudorandom numbers 失效
    使用伪随机数的传输消息的加密认证

    公开(公告)号:US5377270A

    公开(公告)日:1994-12-27

    申请号:US85423

    申请日:1993-06-30

    Abstract: An automobile door lock receiver module (30) and a plurality of keychain fob transmitter units (16) contain identification numbers, secret initial values, and secret feedback masks so as to authenticate encrypted messages from any of the assigned fobs, indicative of commands registered by closing switches on the fob. Each fob is synchronized with the receiving module by means of a truly random number concatenated with a secret initial value and encrypted, through a linear feedback shift register or other operations. A second secret initial value is encrypted and command bits are exclusive ORed into the low order bit positions; the two encrypted numbers are concatenated and encrypted to form a key word which is transmitted with the fob ID. Synchronization includes decrypting to recover the truly random number and the secret initial value concatenated therewith; the truly random number is compared with previously received random numbers in order to avoid copying of recently transmitted synchronization commands. Successive lock-related commands utilize the number encrypted from the truly random number and the second secret initial value as starting values, employing a pseudorandom number of encryption iterations. A half-second delay between responses mitigates gaining access through numerical trials. An authenticated panic alarm command operates the headlights and horn of the vehicle but does not alter the synchronization.

    Abstract translation: 汽车门锁接收器模块(30)和多个钥匙扣抽头发射器单元(16)包含识别号码,秘密初始值和秘密反馈掩码,以便从任何分配的信息点识别加密的消息,指示由 关闭开关。 每个FOB通过与秘密初始值连接并通过线性反馈移位寄存器或其他操作进行加密的真正随机数与接收模块同步。 第二秘密初始值被加密,并且命令位被异或进入低位位置; 两个加密号码被连接并加密,以形成一个用小号码ID发送的关键字。 同步包括解密以恢复与其连接的真实随机数和秘密初始值; 将真正的随机数与先前接收到的随机数进行比较,以避免最近发送的同步命令的复制。 连续锁相关命令利用从真正随机数加密的号码和第二秘密初始值作为起始值,采用伪随机数加密迭代。 响应之间的半秒延迟缓解了通过数值试验获得访问。 经认证的紧急报警指令用于操作车辆的前灯和喇叭,但不会改变同步。

    Cryptographic authentication of transmitted messages using pseudorandom
numbers
    6.
    再颁专利
    Cryptographic authentication of transmitted messages using pseudorandom numbers 失效
    使用伪随机数的传输消息的加密认证

    公开(公告)号:USRE36752E

    公开(公告)日:2000-06-27

    申请号:US771526

    申请日:1996-12-23

    Abstract: An automobile door receiver module (30) and a plurality of keychain fob transmitter units (16) contain identification numbers, secret initial values, and secret feedback masks so as to authenticate encrypted messages from any of the assigned fobs, indicative of commands registered by closing switches on the fob. Each fob is synchronized with the receiving module by means of a truly random number concatenated with a secret initial value and encrypted, through a linear feedback shift register or other operations. A second secret initial value is encrypted and command bits are exclusive ORed into the low order bit positions; the two encrypted numbers are concatenated and encrypted to form a key word which is transmitted with the fob ID. Synchronization includes decrypting to recover the truly random number and the secret initial value concatenated therewith; the truly random number is compared with previously received random numbers in order to avoid copying of recently transmitted synchronization commands. Successive lock-related commands utilize the number encrypted from the truly random number and the second secret initial value as starting values, employing a pseudorandom number of encryption iterations. A half-second delay between responses mitigates gaining access through numerical trials. An authenticated panic alarm command operates the headlights and horn of the vehicle but does not alter the synchronization.

    Abstract translation: 汽车门接收器模块(30)和多个钥匙扣抽头发射器单元(16)包含识别号码,秘密初始值和秘密反馈掩码,以便从任何分配的信息点识别加密的消息,指示通过关闭登记的命令 切换到FOB。 每个FOB通过与秘密初始值连接并通过线性反馈移位寄存器或其他操作进行加密的真正随机数与接收模块同步。 第二秘密初始值被加密,并且命令位被异或进入低位位置; 两个加密号码被连接并加密,以形成一个用小号码ID发送的关键字。 同步包括解密以恢复与其连接的真实随机数和秘密初始值; 将真正的随机数与先前接收到的随机数进行比较,以避免最近发送的同步命令的复制。 连续锁相关命令利用从真正随机数加密的号码和第二秘密初始值作为起始值,采用伪随机数加密迭代。 响应之间的半秒延迟缓解了通过数值试验获得访问。 经认证的紧急报警指令用于操作车辆的前灯和喇叭,但不会改变同步。

    Wireless automotive door
    7.
    发明授权
    Wireless automotive door 失效
    无线汽车门

    公开(公告)号:US5975622A

    公开(公告)日:1999-11-02

    申请号:US955014

    申请日:1997-10-20

    CPC classification number: B60J5/0416 B60R16/0207

    Abstract: A wireless vehicle door assembly includes a conductive layer sandwiched between two nonconductive layers. An input terminal provides a connection between the conductive layer and a plurality of wires from another portion of the vehicle. A plurality of connectors couple a plurality of loads to the conductive layer. Electrical power and signals are propagated along the conductive layer to control the various loads.

    Abstract translation: 无线车门组件包括夹在两个非导电层之间的导电层。 输入端子提供导电层与来自车辆的另一部分的多根电线之间的连接。 多个连接器将多个负载耦合到导电层。 电功率和信号沿导电层传播,以控制各种负载。

    Method of generating secret identification numbers
    8.
    发明授权
    Method of generating secret identification numbers 失效
    产生秘密识别号码的方法

    公开(公告)号:US5757923A

    公开(公告)日:1998-05-26

    申请号:US635145

    申请日:1996-04-19

    Abstract: The present invention teaches a method of generating a secret identification number from a random digital data stream. The method comprises the step of initially selecting a first and a second group of bytes from the random digital data stream, wherein the first and second groups of bytes have a first and second numerical value. Subsequently, a first maximal length LFSR feedback term is looked up from a list in response to said first numerical value, while a second maximal length LFSR feedback term is looked up from the list in response to said second numerical value. The method additionally comprises the step of generating a cyclic redundancy code feedback term in response to executing a cyclic redundancy code check on a third group of bytes selected from the random digital data stream. Moreover, the method comprises the step of forming the secret identification number from the first and second maximal length LFSR feedback terms, the cyclic redundancy code feedback term, and a fourth group of bytes from the random digital data stream.

    Abstract translation: 本发明教导了一种从随机数字数据流生成秘密识别号码的方法。 该方法包括从随机数字数据流中初始选择第一和第二组字节的步骤,其中第一和第二组字节具有第一和第二数值。 随后,响应于所述第一数值从列表中查找第一最大长度LFSR反馈项,而响应于所述第二数值从列表中查找第二最大长度LFSR反馈项。 该方法还包括响应于对从随机数字数据流中选择的第三组字节执行循环冗余码检查,产生循环冗余码反馈项的步骤。 此外,该方法包括从随机数字数据流中的第一和第二最大长度LFSR反馈项,循环冗余码反馈项和第四组字节形成秘密识别号的步骤。

    Method and apparatus for location-sensitive, subsidized cell phone billing
    9.
    发明授权
    Method and apparatus for location-sensitive, subsidized cell phone billing 有权
    用于位置敏感,补贴手机计费的方法和设备

    公开(公告)号:US07668765B2

    公开(公告)日:2010-02-23

    申请号:US09898497

    申请日:2001-07-05

    Abstract: A method and system for determining a billing rate of a telecommunications connection is disclosed. The method and system may be used in a location aware telecommunications system that can determine the location of a telecommunications unit (TU) being used within the system. The geographic location of a mobile unit (MU) is determined, and compared to a list a predetermined subsidized zones. When the MU initiates or receives a call from within a subsidized zone, and the MU is otherwise responsible for paying a predetermined billing rate associated with the call, the predetermined rate is subsidized for at least the portion of the call made while the MU is located within the subsidized zone.

    Abstract translation: 公开了一种用于确定电信连接的计费率的方法和系统。 该方法和系统可以用于可以确定系统内正在使用的电信单元(TU)的位置的位置感知电信系统中。 确定移动单元(MU)的地理位置,并将其与列表进行比较以预定的补贴区域。 当MU从补贴区域内启动或接收呼叫,并且MU负责支付与该呼叫相关联的预定计费率时,该预定费率被补贴至少部分在MU所在的呼叫 在补贴区内。

Patent Agency Ranking