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公开(公告)号：US09772231B2
公开(公告)日：2017-09-26
申请号：US14286482
申请日：2014-05-23
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Yoon Hwee Leow , Tue Fatt David Wee
Abstract: In one example, a method includes determining, by a device, a plurality of voltage values that each correspond to a respective voltage drop across a remote p-n junction while the remote p-n junction is biased at different respective current levels, wherein each of the plurality of voltage values is a function of at least: one of the different respective current levels, a temperature of the remote p-n junction, and a series resistance between the device and the remote p-n junction. In this example, the method also includes, determining, by the device, an intermediate value based on a difference between at least three voltage values of the plurality of voltage values, wherein the intermediate value is not a function of the series resistance, and determining the temperature of the remote p-n junction based on the intermediate value such that the temperature is not a function of the series resistance.
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公开(公告)号：US20150301552A1
公开(公告)日：2015-10-22
申请号：US14258953
申请日：2014-04-22
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim
CPC classification number: G05F5/00 , G01K3/10 , G01K7/16 , G01K2217/00 , G06F1/26 , H02J7/0052 , H02J2007/0062
Abstract: In one embodiment, a method includes receiving power at a power consumer device coupled to a power provider device by a cable. The received power is supplied at a first current at an input of the power consumer device and is supplied to a load in the power consumer device. The method includes measuring a rate of change of the voltage at the input of the power consumer device, and determining whether the rate of change of the voltage at the input of the power consumer device is less than a first target rate of change of voltage. The current received at the input of the power consumer device is reduced to a second current lower than the first current if the rate of change of the voltage at the input of the power consumer device is greater than the first target rate of change of voltage.
Abstract translation: 在一个实施例中，一种方法包括在通过电缆耦合到电力供应商设备的电力消费者设备处接收电力。 所接收的功率以第一电流在功率消耗装置的输入端提供，并被提供给电力消耗装置中的负载。 该方法包括测量电力用户设备的输入处的电压变化率，以及确定电力用户设备的输入处的电压的变化率是否小于第一目标电压变化率。 如果消耗电力设备的输入端的电压的变化率大于第一目标电压变化率，则在消耗电力设备的输入处接收的电流被降低到低于第一电流的第二电流。
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公开(公告)号：US20170063853A1
公开(公告)日：2017-03-02
申请号：US14796892
申请日：2015-07-10
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim
IPC: H04L29/06
CPC classification number: H04L63/0876 , H04L9/0861 , H04L9/3242 , H04L63/0457 , H04L63/123
Abstract: A device is described that determines a session key for generating a message authentication code (MAC) tag associated with a communication session between the device and a second device. The device determines, based at least in part on the session key, a crypto key for encoding or decoding a message associated with the second device. The device then encodes or decodes the message based on the crypto key.
Abstract translation: 描述了一种设备，其确定用于生成与设备和第二设备之间的通信会话相关联的消息认证码（MAC）标签的会话密钥。 该设备至少部分地基于会话密钥确定用于对与第二设备相关联的消息进行编码或解码的加密密钥。 然后，设备基于密钥对消息进行编码或解码。
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公开(公告)号：US09557756B2
公开(公告)日：2017-01-31
申请号：US14618216
申请日：2015-02-10
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Yong Siang Teo
CPC classification number: G05F1/468 , G01R19/10 , H03M1/1023 , H03M1/34
Abstract: Representative implementations of devices and techniques provide detection of a voltage drift of an electrical component or system. A detection circuit detects the voltage drift based on a comparison of a received signal from a test circuit and a reference voltage. A compensation voltage may be generated and applied at one or more locations within the test circuit to compensate for the voltage drift.
Abstract translation: 设备和技术的代表性实现提供对电气部件或系统的电压漂移的检测。 检测电路基于来自测试电路的接收信号与参考电压的比较来检测电压漂移。 可以产生补偿电压并施加在测试电路内的一个或多个位置以补偿电压漂移。
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公开(公告)号：US20160301532A1
公开(公告)日：2016-10-13
申请号：US14684964
申请日：2015-04-13
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Robert Rozario
CPC classification number: H04L9/3263 , G06F12/1408 , G06F2212/1052
Abstract: Methods for securing and activating chips and/or devices that can utilize a hardware security module (HSM). One or more of the methods can include generating one or more digital certificates based on an identification (ID) associated with a device, generating one or more activation certificates and one or more modified activation certificate based on one or more encryption keys, and generating one or more chip data certificates and/or one or more modified chip data certificates.
Abstract translation: 用于保护和激活可以利用硬件安全模块（HSM）的芯片和/或设备的方法。 一种或多种方法可以包括基于与设备相关联的标识（ID）生成一个或多个数字证书，基于一个或多个加密密钥生成一个或多个激活证书和一个或多个修改的激活证书，并生成一个 或更多的芯片数据证书和/或一个或多个修改的芯片数据证书。
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Patent Agency Ranking
公开(公告)号：US20140129840A1
公开(公告)日：2014-05-08
申请号：US14152298
申请日：2014-01-10
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Stephan Schaecher , Wieland Fischer , Bernd Meyer
IPC: H04L29/06
CPC classification number: H04L63/08 , H04L9/3066 , H04L9/3231 , H04L9/3242 , H04L9/3271 , H04L63/0428 , H04L2209/88
Abstract: Embodiments relate to systems and methods for authenticating devices and securing data. In embodiments, a session key for securing data between two devices can be derived as a byproduct of a challenge-response protocol for authenticating one or both of the devices.
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公开(公告)号：US09903766B2
公开(公告)日：2018-02-27
申请号：US14954647
申请日：2015-11-30
Applicant: Infineon Technologies AG
Inventor： Yoon Hwee Leow , Kwan Siong Choong , Cheow Guan Lim , Chin Yeong Koh
Abstract: An example method includes outputting, by a device, a first current through a temperature sensor that is that is external to the device; determining, by the device and based on a voltage drop across the temperature sensor while the first current is flowing through the temperature sensor, a current level; outputting, by the device, a second current at the determined current level through the temperature sensor; determining, by an analog-to-digital converter (ADC) of the device, a value that corresponds to a voltage drop across the temperature sensor while the second current is flowing through the temperature sensor; outputting, by the device, a third current through a reference resistor that is external to the device; and determining, based on the value and a voltage drop across the reference resistor while the third current is flowing through the reference resistor, a temperature of the temperature sensor.
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公开(公告)号：US09590810B2
公开(公告)日：2017-03-07
申请号：US14684964
申请日：2015-04-13
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Robert Rozario
CPC classification number: H04L9/3263 , G06F12/1408 , G06F2212/1052
Abstract: Methods for securing and activating chips and/or devices that can utilize a hardware security module (HSM). One or more of the methods can include generating one or more digital certificates based on an identification (ID) associated with a device, generating one or more activation certificates and one or more modified activation certificate based on one or more encryption keys, and generating one or more chip data certificates and/or one or more modified chip data certificates.
Abstract translation: 用于保护和激活可利用硬件安全模块（HSM）的芯片和/或设备的方法。 一种或多种方法可以包括基于与设备相关联的标识（ID）生成一个或多个数字证书，基于一个或多个加密密钥生成一个或多个激活证书和一个或多个修改的激活证书，并生成一个 或更多的芯片数据证书和/或一个或多个修改的芯片数据证书。
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公开(公告)号：US20140129837A1
公开(公告)日：2014-05-08
申请号：US14152227
申请日：2014-01-10
Applicant: Infineon Technologies AG
Inventor： Cheow Guan Lim , Stephan Schaecher , Wieland Fischer , Bernd Meyer
IPC: H04L29/06
CPC classification number: H04L63/08 , H04L9/3066 , H04L9/3231 , H04L9/3242 , H04L9/3271 , H04L63/0428 , H04L2209/88
Abstract: Embodiments relate to systems and methods for authenticating devices and securing data. In embodiments, a session key for securing data between two devices can be derived as a byproduct of a challenge-response protocol for authenticating one or both of the devices.
Abstract translation: 实施例涉及用于认证设备和保护数据的系统和方法。 在实施例中，用于保护两个设备之间的数据的会话密钥可以被导出为询问 - 响应协议的副产品，用于认证一个或两个设备。
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公开(公告)号：US20170153149A1
公开(公告)日：2017-06-01
申请号：US14954647
申请日：2015-11-30
Applicant: Infineon Technologies AG
Inventor： Yoon Hwee Leow , Kwan Siong Choong , Cheow Guan Lim , Chin Yeong Koh
IPC: G01K7/16
Abstract: An example method includes outputting, by a device, a first current through a temperature sensor that is that is external to the device; determining, by the device and based on a voltage drop across the temperature sensor while the first current is flowing through the temperature sensor, a current level; outputting, by the device, a second current at the determined current level through the temperature sensor; determining, by an analog-to-digital converter (ADC) of the device, a value that corresponds to a voltage drop across the temperature sensor while the second current is flowing through the temperature sensor; outputting, by the device, a third current through a reference resistor that is external to the device; and determining, based on the value and a voltage drop across the reference resistor while the third current is flowing through the reference resistor, a temperature of the temperature sensor.
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