Method for system scenario based design of dynamic embedded systems
    12.
    发明授权
    Method for system scenario based design of dynamic embedded systems 有权
    基于动态嵌入式系统的系统场景设计方法

    公开(公告)号:US09244701B2

    公开(公告)日:2016-01-26

    申请号:US13940247

    申请日:2013-07-11

    CPC classification number: G06F9/44505 G06F17/5045

    Abstract: Methods are disclosed for system scenario-based design for an embedded platform whereon a dynamic application is implemented. The application meets at least one guaranteed constraint. Temporal correlations are assumed in the behavior of internal data variables used in the application, with the internal data variables representing parameters used for executing a portion of the application. An example method includes determining a distribution over time of an N-dimensional cost function, with N an integer number N≧1, corresponding to the implementation on the platform for a set of combinations of the internal data variables. The method also includes partitioning an N-dimensional cost space in at least two bounded regions, each bounded region containing cost combinations corresponding to combinations of values of the internal data variables of the set that have similar cost and frequency of occurrence, whereby one bounded region is provided for rarely occurring cost combinations.

    Abstract translation: 对于实现动态应用的嵌入式平台,公开了基于系统场景的设计的方法。 应用程序满足至少一个保证约束。 在应用程序中使用的内部数据变量的行为假定时间相关性,内部数据变量表示用于执行应用程序的一部分的参数。 一个示例性方法包括确定N维成本函数的分布,N为整数N≥1,对应于平台上对于内部数据变量的组合的集合的实现。 该方法还包括在至少两个有界区域中分割N维成本空间,每个有界区域包含对应于具有类似成本和发生频率的集合的内部数据变量的值的组合的成本组合,由此一个有界区域 是为很少出现的成本组合提供的。

    Method for System Scenario Based Design of Dynamic Embedded Systems
    13.
    发明申请
    Method for System Scenario Based Design of Dynamic Embedded Systems 有权
    动态嵌入式系统的系统场景设计方法

    公开(公告)号:US20140019739A1

    公开(公告)日:2014-01-16

    申请号:US13940247

    申请日:2013-07-11

    CPC classification number: G06F9/44505 G06F17/5045

    Abstract: Methods are disclosed for system scenario-based design for an embedded platform whereon a dynamic application is implemented. The application meets at least one guaranteed constraint. Temporal correlations are assumed in the behaviour of internal data variables used in the application, with the internal data variables representing parameters used for executing a portion of the application. An example method includes determining a distribution over time of an N-dimensional cost function, with N an integer number N≧1, corresponding to the implementation on the platform for a set of combinations of the internal data variables. The method also includes partitioning an N-dimensional cost space in at least two bounded regions, each bounded region containing cost combinations corresponding to combinations of values of the internal data variables of the set that have similar cost and frequency of occurrence, whereby one bounded region is provided for rarely occurring cost combinations.

    Abstract translation: 对于实现动态应用的嵌入式平台,公开了基于系统场景的设计的方法。 应用程序满足至少一个保证约束。 在应用程序中使用的内部数据变量的行为假定时间相关性,内部数据变量表示用于执行应用程序的一部分的参数。 一个示例性方法包括确定N维成本函数的分布,其中N是整数N≥1,对应于平台上对于内部数据变量的组合的集合的实现。 该方法还包括在至少两个有界区域中分割N维成本空间,每个有界区域包含对应于具有类似成本和发生频率的集合的内部数据变量的值的组合的成本组合,由此一个有界区域 是为很少出现的成本组合提供的。

    Circuit for optoelectronic down-conversion of THz signals

    公开(公告)号:US11817632B2

    公开(公告)日:2023-11-14

    申请号:US17466908

    申请日:2021-09-03

    CPC classification number: H01Q23/00 H01Q9/285

    Abstract: A circuit for optoelectronic down-conversion of a terahertz, THz, signal comprises a first photodiode and a second photodiode configured to be excited by an optical beat signal. The photodiodes are coupled in series through a common antenna. The terminals of the antenna are coupled to form an output terminal and the antenna is configured to receive the terahertz, THz, signal. The photodiodes thereby, via the optical beat signal, respectively, down-convert the THz signal and generate a current comprising an intermediate frequency, IF, component and a direct current, DC, component. The respective generated currents are summed at the output terminal, thereby obtaining the IF components and cancelling the DC components.

    Device for read-out of a photoplethysmography signal and a wearable sensor

    公开(公告)号:US11369275B2

    公开(公告)日:2022-06-28

    申请号:US16709908

    申请日:2019-12-10

    Abstract: A device for read-out of a photoplethysmography (PPG) signal comprises: a photodiode, which is configured to detect a PPG signal, the photodiode comprising a first and a second terminal; and a read-out circuitry for reading out the PPG signal, wherein an input stage is connected to receive a first and a second input signal from the terminals and a DC bias voltage, and wherein the input stage is configured for current sensing to provide a fully differential amplification of the input signals to a first and a second current signal, and wherein an output stage is configured to receive the current signals, wherein the current signals comprise an AC and a DC component of the PPG signal, and wherein the output stage is configured to generate a differential output voltage through a gain component.

    Detector device with photoconductive body

    公开(公告)号:US10830696B2

    公开(公告)日:2020-11-10

    申请号:US16200352

    申请日:2018-11-26

    Abstract: A solid-state device for photo detection, in general, of terahertz radiation is disclosed. One aspect is a detector device comprising a body having a photoconductive material, a first antenna element connected to a first portion of the body, and a second antenna element connected to a second portion of the body. The first antenna element and the second antenna element are arranged to induce an electric field in the body in response to an incident signal. Further, the device has a waveguide arranged to couple light into the photoconductive material via a coupling interface between the waveguide and the body, where the coupling interface faces away from the first portion and the second portion of the body and is closer to the first portion than to the second portion.

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