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1. 发明授权

US07973607B1 RTC circuit with time value adjustment 有权
标题翻译： RTC电路具有时间值调整
公开(公告)号：US07973607B1
公开(公告)日：2011-07-05
申请号：US12107326
申请日：2008-04-22
申请人： Marco Ciaffi , Daniel Wilder
发明人： Marco Ciaffi , Daniel Wilder
IPC分类号： H03L7/00
CPC分类号： G06F21/725
摘要： A technique involves the use of an electronic device having a real-time clock (RTC) circuit. In particular, the technique involves obtaining an RTC value from the RTC circuit. The RTC value is based on a previous time value and being arranged to represent current time. The technique further involves generating an adjustment factor arranged to adjust for imperfection in an oscillator of the RTC circuit, and providing a new time value based on the RTC value and the adjustment factor. The new time value represents current time at least as accurately as the RTC value.
摘要翻译：一种技术涉及使用具有实时时钟（RTC）电路的电子设备。特别地，该技术涉及从RTC电路获得RTC值。 RTC值基于之前的时间值，并被排列成表示当前时间。该技术还包括产生一个调整因子，该调节因子被设置为调整RTC电路的振荡器的不完美性，并且基于RTC值和调节因子提供新的时间值。新的时间值表示当前时间至少与RTC值一样准确。

2. 发明申请

US20090089596A1 Method and Apparatus for Mitigating Current Drain in a Low-Power Hand-Held Device 有权
标题翻译：用于减轻低功率手持装置中的电流消耗的方法和装置
公开(公告)号：US20090089596A1
公开(公告)日：2009-04-02
申请号：US11862783
申请日：2007-09-27
申请人： Marco Ciaffi , Larnie Rabinowitz , Daniel Wilder
发明人： Marco Ciaffi , Larnie Rabinowitz , Daniel Wilder
IPC分类号： G05F3/02 , G06F1/00
CPC分类号： H03M11/02
摘要： An authentication device or other type of low-power hand-held device comprises a processor, an external button alternately configurable in an unpressed state and a pressed state, and current drain mitigation circuitry coupled to the external button and a corresponding input of the processor. The current drain mitigation circuitry is configured to connect the input of the processor to a first potential when the external button is in the unpressed state and to connect the input of the processor to a second potential different than the first potential when the external button is in the pressed state, thereby limiting current drain arising from the external button being stuck in the pressed state.
摘要翻译：认证设备或其他类型的低功率手持设备包括处理器，可交替配置为未处理状态和按压状态的外部按钮以及耦合到外部按钮和处理器的对应输入的电流消除电路。电流漏极减轻电路被配置为当外部按钮处于未处理状态时将处理器的输入连接到第一电位，并且当外部按钮处于未处理状态时将处理器的输入连接到不同于第一电位的第二电位按压状态，从而限制由外部按钮引起的电流消耗被卡在按压状态。

3. 发明授权

US07921311B2 Method and apparatus for mitigating current drain in a low-power hand-held device 有权
标题翻译：用于减轻低功率手持设备中的电流消耗的方法和装置
公开(公告)号：US07921311B2
公开(公告)日：2011-04-05
申请号：US11862783
申请日：2007-09-27
申请人： Marco Ciaffi , Larnie Rabinowitz , Daniel Wilder
发明人： Marco Ciaffi , Larnie Rabinowitz , Daniel Wilder
IPC分类号： G06F3/20 , G06F1/00
CPC分类号： H03M11/02
摘要： An authentication device or other type of low-power hand-held device comprises a processor, an external button alternately configurable in an unpressed state and a pressed state, and current drain mitigation circuitry coupled to the external button and a corresponding input of the processor. The current drain mitigation circuitry is configured to connect the input of the processor to a first potential when the external button is in the unpressed state and to connect the input of the processor to a second potential different than the first potential when the external button is in the pressed state, thereby limiting current drain arising from the external button being stuck in the pressed state.
摘要翻译：认证设备或其他类型的低功率手持设备包括处理器，可交替配置为未处理状态和按压状态的外部按钮以及耦合到外部按钮和处理器的对应输入的电流消除电路。电流漏极减轻电路被配置为当外部按钮处于未处理状态时将处理器的输入连接到第一电位，并且当外部按钮处于未处理状态时将处理器的输入连接到不同于第一电位的第二电位按压状态，从而限制由外部按钮引起的电流消耗被卡在按压状态。

4. 发明授权

US08060750B2 Secure seed provisioning 有权
标题翻译：安全种子配置
公开(公告)号：US08060750B2
公开(公告)日：2011-11-15
申请号：US11824434
申请日：2007-06-29
申请人： William M. Duane , Eric A. Silva , Marco Ciaffi
发明人： William M. Duane , Eric A. Silva , Marco Ciaffi
IPC分类号： G06F21/00
CPC分类号： H04L9/3234 , G06F21/34 , H04L9/0869 , H04L9/321
摘要： A technique is utilized in the configuration and seeding of security tokens at third party facilities, particularly at facilities of a configuration agent, such that a token can be configured without the configuration agent having security-defeating knowledge about the token. Such a technique allows a third party to provision a token with a seed, but in such a way that the third party will not know, or be able to construct, the seed after the seed provisioning process is complete. The seed may include, by way of example, a symmetric key or other secret shared by two or more entities. In some arrangements, a method is used for secure seed provisioning. Data is derived from inherent randomness in a token or other authentication device. Based on the data, the token or other authentication device is provisioned with a seed.
摘要翻译：在第三方设施，特别是在配置代理的设施处，配置和种子安全令牌的技术被使用，使得可以配置令牌，而没有配置代理具有关于令牌的安全性破坏的知识。这种技术允许第三方提供具有种子的令牌，但是使得第三方在种子提供处理完成之后将不知道或能够构建种子。作为示例，种子可以包括由两个或多个实体共享的对称密钥或其他秘密。在一些安排中，一种方法用于安全种子供应。数据来源于令牌或其他认证设备中的固有随机性。基于这些数据，令牌或其他认证设备被提供一个种子。

5. 发明申请

US20090006858A1 Secure seed provisioning 有权
标题翻译：安全种子配置
公开(公告)号：US20090006858A1
公开(公告)日：2009-01-01
申请号：US11824434
申请日：2007-06-29
申请人： William M. Duane , Eric A. Silva , Marco Ciaffi
发明人： William M. Duane , Eric A. Silva , Marco Ciaffi
IPC分类号： H04L9/00
CPC分类号： H04L9/3234 , G06F21/34 , H04L9/0869 , H04L9/321
摘要： A method is used for secure seed provisioning. Data is derived from inherent randomness in an authentication device. Based on the data, the authentication device is provisioned with a seed.
摘要翻译：一种方法用于安全种子供应。数据源自认证设备中的固有随机性。基于该数据，认证装置被提供种子。

6. 发明申请

US20080320555A1 RESET-TOLERANT AUTHENTICATION DEVICE 有权
标题翻译：复位认证设备
公开(公告)号：US20080320555A1
公开(公告)日：2008-12-25
申请号：US11766301
申请日：2007-06-21
申请人： Marco Ciaffi , Joseph Pirrotta , William M. Duane
发明人： Marco Ciaffi , Joseph Pirrotta , William M. Duane
IPC分类号： G06F7/04
CPC分类号： G06F21/34
摘要： An authentication device comprises a processor having a reset input, a trigger source coupled to the reset input of the processor, and interface circuitry for outputting codes generated by the processor. The trigger source may comprise, for example, a trigger button having an associated switch that when actuated supplies a reset to the reset input. The processor is configured to analyze a given reset applied to the reset input to determine if the reset is an inadvertent reset or a reset generated by the trigger source. The processor generates a code responsive to the reset if the reset is determined to be a reset generated by the trigger source. The code may be supplied to a host device which communicates the code to an authentication server for authentication.
摘要翻译：认证装置包括具有复位输入的处理器，耦合到处理器的复位输入的触发源，以及用于输出由处理器产生的代码的接口电路。触发源可以包括例如具有关联开关的触发按钮，当被致动时，触发源将复位提供给复位输入。处理器被配置为分析施加到复位输入的给定复位以确定复位是否是无意的复位或由触发源产生的复位。如果复位被确定为由触发源产生的复位，则处理器产生响应于复位的代码。该代码可以被提供给将代码传送给认证服务器进行认证的主机设备。

7. 发明授权

US09170602B1 Calibrating a high-speed clock signal generated using a processor internal to the electronic authentication device without using a crystal oscillator 有权
标题翻译：校准使用电子认证设备内部的处理器生成的高速时钟信号，而不使用晶体振荡器
公开(公告)号：US09170602B1
公开(公告)日：2015-10-27
申请号：US13536901
申请日：2012-06-28
申请人： Joseph M. Pirrotta , Marco Ciaffi
发明人： Joseph M. Pirrotta , Marco Ciaffi
IPC分类号： G06F1/04 , G06F1/24 , G06F11/00 , G06F1/12 , G06F1/10 , G06F1/08
CPC分类号： G06F1/12 , G06F1/04 , G06F1/08 , G06F1/10
摘要： A method is used in calibrating an internal clock generator. An electronic device is instructed to output a high-speed clock signal which is communicated to an external calibration system. The high-speed clock signal is measured using measurement equipment associated with the external calibration system. One or more calibration values based on the measured clock signal value are calculated. The calculated calibration values are communicated to the electronic device. The electronic device is instructed to generate a calibrated clock signal by applying the one or more calibration values to an internally generated clock signal.
摘要翻译：校准内部时钟发生器时使用的方法。指示电子装置输出与外部校准系统通信的高速时钟信号。使用与外部校准系统相关的测量设备测量高速时钟信号。计算基于所测量的时钟信号值的一个或多个校准值。计算的校准值被传送到电子设备。指示电子设备通过将一个或多个校准值应用于内部产生的时钟信号来产生校准时钟信号。

8. 发明授权

US08458483B1 Techniques for message-passing using shared memory of an RF tag 有权
标题翻译：使用RF标签的共享存储器进行消息传递的技术
公开(公告)号：US08458483B1
公开(公告)日：2013-06-04
申请号：US12495447
申请日：2009-06-30
申请人： Daniel Bailey , Marco Ciaffi , William Duane , Ari Juels , John O'Brien
发明人： Daniel Bailey , Marco Ciaffi , William Duane , Ari Juels , John O'Brien
IPC分类号： G06F21/00 , G06F12/14
CPC分类号： H04B5/0037 , G06F1/3287 , G06F21/35 , G06F21/74 , G06F21/81 , G06F2221/2105 , H04B5/0056 , H04L63/0838 , H04W4/80 , H04W12/06 , H04W52/0229 , Y02D10/171 , Y02D70/166 , Y02D70/42
摘要： A technique of message-passing using shared memory of an RF tag involves storing a message in the shared memory while a security processor of the RF tag is in a sleep mode, the security processor being constructed and arranged to access the shared memory when the security processor is in a wakened mode. The technique further involves transitioning the security processor from the sleep mode to the wakened mode, and processing the message from the shared memory using the security processor after the security processor has transitioned from the sleep mode to the wakened mode. If the security processor is awakened only as needed (rather than remain in the wakened mode), lifetime of a battery which powers the security processor can be maximized.
摘要翻译：使用RF标签的共享存储器的消息传递的技术涉及在RF标签的安全处理器处于睡眠模式的同时将消息存储在共享存储器中，所述安全处理器被构造和布置成在安全性时访问共享存储器处理器处于唤醒模式。该技术还包括将安全处理器从睡眠模式转换到唤醒模式，以及在安全处理器从睡眠模式转换到唤醒模式之后，使用安全处理器处理来自共享存储器的消息。如果仅根据需要唤醒安全处理器（而不是保持在唤醒模式），则可以最大化为安全处理器供电的电池的寿命。

9. 发明授权

US08046596B2 Reset-tolerant authentication device 有权
标题翻译：容错认证设备
公开(公告)号：US08046596B2
公开(公告)日：2011-10-25
申请号：US11766301
申请日：2007-06-21
申请人： Marco Ciaffi , Joseph Pirrotta , William M. Duane
发明人： Marco Ciaffi , Joseph Pirrotta , William M. Duane
IPC分类号： G06F1/32
CPC分类号： G06F21/34
摘要： An authentication device comprises a processor having a reset input, a trigger source coupled to the reset input of the processor, and interface circuitry for outputting codes generated by the processor. The trigger source may comprise, for example, a trigger button having an associated switch that when actuated supplies a reset to the reset input. The processor is configured to analyze a given reset applied to the reset input to determine if the reset is an inadvertent reset or a reset generated by the trigger source. The processor generates a code responsive to the reset if the reset is determined to be a reset generated by the trigger source. The code may be supplied to a host device which communicates the code to an authentication server for authentication.
摘要翻译：认证装置包括具有复位输入的处理器，耦合到处理器的复位输入的触发源，以及用于输出由处理器产生的代码的接口电路。触发源可以包括例如具有关联开关的触发按钮，当被致动时，触发源将复位提供给复位输入。处理器被配置为分析施加到复位输入的给定复位以确定复位是否是无意的复位或由触发源产生的复位。如果复位被确定为由触发源产生的复位，则处理器产生响应于复位的代码。该代码可以被提供给将代码传送给认证服务器进行认证的主机设备。

10. 发明授权

US5797023A Method and apparatus for fault tolerant BIOS addressing 失效
标题翻译：用于容错BIOS寻址的方法和装置
公开(公告)号：US5797023A
公开(公告)日：1998-08-18
申请号：US891249
申请日：1997-07-10
申请人： Rachael Berman , Stephen F. Shirron , Fidelma Hayes , Kevin Peterson , Marco Ciaffi
发明人： Rachael Berman , Stephen F. Shirron , Fidelma Hayes , Kevin Peterson , Marco Ciaffi
IPC分类号： G06F11/00 , G06F11/14 , G06F11/22 , G06F1/28
CPC分类号： G06F11/1666 , G06F11/1417 , G06F11/22
摘要： An apparatus is described to provide a fault tolerant power-on of a computer system, using a BIOS memory containing a primary power-on system level configuration program for a computer system and a separate memory which contains a subset of the primary power-on system level configuration program. The subset program is accessed automatically, without human intervention, responding to a checksum detector of the BIOS memory data.
摘要翻译：一种装置被描述为提供计算机系统的容错上电，使用包含用于计算机系统的主要上电系统级配置程序的BIOS存储器和包含主电源系统的子集的单独存储器级配置程序。子程序被自动访问，无需人为干预，响应BIOS存储器数据的校验和检测器。

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