MICROPHONE ARRAY WITH DAISY-CHAIN SUMMATION
    1.
    发明申请
    MICROPHONE ARRAY WITH DAISY-CHAIN SUMMATION 有权
    麦克风阵列与DAISY-CHAIN SUMMATION

    公开(公告)号:US20130121504A1

    公开(公告)日:2013-05-16

    申请号:US13428496

    申请日:2012-03-23

    CPC classification number: H04R3/005 H04R2499/13

    Abstract: Microphone stages in a microphone array may be coupled together in a daisy chain. Each stage may include a microphone, an analog to digital converter, a decimation unit, a receiver, an adder, and a transmitter. The converter may convert analog audio microphone signals into digital codes that may be decimated. The adder may add decimated digital codes in each stage to a cumulative sum of decimated digital codes from prior stages. This new sum may be transmitted to the next microphone stage, where the adder may add the decimated digital codes from that stage to the cumulative sum. A serial interface may be used to connect the transmitters and receivers of each of the stages. The serial interface may be used to transmit the cumulative sum of decimated digital codes between the stages. The serial interface may also be used to transmit configuration data between the stages.

    Abstract translation: 麦克风阵列中的麦克风级可以以菊花链耦合在一起。 每个阶段可以包括麦克风,模数转换器,抽取单元,接收器,加法器和发射器。 转换器可将模拟音频麦克风信号转换为可能被抽取的数字代码。 加法器可以将每个级中的抽取的数字代码添加到来自前一级的抽取的数字代码的累积和。 这个新的和可以传送到下一个麦克风阶段,其中加法器可以将从该阶段抽取的数字代码添加到累积和。 可以使用串行接口连接每个级的发射机和接收机。 串行接口可以用于在级之间传送抽取的数字代码的累加和。 串行接口也可用于在各个级之间传输配置数据。

    SEMICONDUCTOR CIRCUIT AND METHODOLOGY FOR IN-SYSTEM SCAN TESTING
    3.
    发明申请
    SEMICONDUCTOR CIRCUIT AND METHODOLOGY FOR IN-SYSTEM SCAN TESTING 有权
    用于系统扫描测试的半导体电路和方法

    公开(公告)号:US20140047293A1

    公开(公告)日:2014-02-13

    申请号:US13584630

    申请日:2012-08-13

    CPC classification number: G01R31/27 G01R31/318555

    Abstract: A semiconductor circuit comprising a digital circuit portion, which comprises a combinatorial logic block. The semiconductor circuit further comprises a scan chain for loading and applying a predefined digital test pattern to inputs of the combinatorial logic block. A bi-directional communication port is adapted for writing incoming data to an address space of the digital circuit portion. Scan control hardware comprises a plurality of individually addressable scan control registers which are mapped to the address space of the bi-directional communication port. A method of testing the digital circuit portion involves, using the scan chain, writing bit values to inputs of the individually addressable scan control registers, and reading bit values from at least one output of an individually addressable scan control register. The method and semiconductor circuit allow thorough testing and diagnosing of failing semiconductor devices, including core logic thereof, while mounted on a printed circuit board.

    Abstract translation: 一种包括数字电路部分的半导体电路,其包括组合逻辑块。 半导体电路还包括扫描链,用于将预定义的数字测试图案加载并应用于组合逻辑块的输入。 双向通信端口适于将输入数据写入数字电路部分的地址空间。 扫描控制硬件包括被映射到双向通信端口的地址空间的多个单独可寻址的扫描控制寄存器。 测试数字电路部分的方法涉及使用扫描链将位数值写入单独寻址的扫描控制寄存器的输入,以及从单独寻址的扫描控制寄存器的至少一个输出读取位值。 该方法和半导体电路允许对安装在印刷电路板上的故障半导体器件(包括其核心逻辑)进行彻底的测试和诊断。

    Semiconductor circuit and methodology for in-system scan testing
    4.
    发明授权
    Semiconductor circuit and methodology for in-system scan testing 有权
    用于系统内扫描测试的半导体电路和方法

    公开(公告)号:US09121892B2

    公开(公告)日:2015-09-01

    申请号:US13584630

    申请日:2012-08-13

    CPC classification number: G01R31/27 G01R31/318555

    Abstract: A semiconductor circuit comprises a digital circuit portion, which in turn comprises a combinatorial logic block. The semiconductor circuit comprises a scan chain for loading and applying a predefined digital test pattern to inputs of the combinatorial logic block. A bi-directional communication port is adapted for writing incoming data to an address space of the digital circuit portion such as register addresses and/or memory addresses. Scan control hardware comprises a plurality of individually addressable scan control registers which are mapped to the address space of the bi-directional communication port. A method of testing the digital circuit portion through the scan chain involves writing bit values to inputs of the individually addressable scan control registers and reading bit values from at least one output of an individually addressable scan control register.

    Abstract translation: 半导体电路包括数字电路部分,该数字电路部分又包括组合逻辑块。 半导体电路包括扫描链,用于将预定义的数字测试图案加载并应用于组合逻辑块的输入。 双向通信端口适于将输入数据写入数字电路部分的地址空间,例如寄存器地址和/或存储器地址。 扫描控制硬件包括被映射到双向通信端口的地址空间的多个单独可寻址的扫描控制寄存器。 通过扫描链测试数字电路部分的方法涉及将位值写入到可单独寻址的扫描控制寄存器的输入和从单独寻址扫描控制寄存器的至少一个输出读取位值。

    Microphone array with daisy-chain summation
    6.
    发明授权
    Microphone array with daisy-chain summation 有权
    带菊花链求和的麦克风阵列

    公开(公告)号:US09479866B2

    公开(公告)日:2016-10-25

    申请号:US13428496

    申请日:2012-03-23

    CPC classification number: H04R3/005 H04R2499/13

    Abstract: Microphone stages in a microphone array may be coupled together in a daisy chain. Each stage may include a microphone, an analog to digital converter, a decimation unit, a receiver, an adder, and a transmitter. The converter may convert analog audio microphone signals into digital codes that may be decimated. The adder may add decimated digital codes in each stage to a cumulative sum of decimated digital codes from prior stages. This new sum may be transmitted to the next microphone stage, where the adder may add the decimated digital codes from that stage to the cumulative sum. A serial interface may be used to connect the transmitters and receivers of each of the stages. The serial interface may be used to transmit the cumulative sum of decimated digital codes between the stages. The serial interface may also be used to transmit configuration data between the stages.

    Abstract translation: 麦克风阵列中的麦克风级可以以菊花链耦合在一起。 每个阶段可以包括麦克风,模数转换器,抽取单元,接收器,加法器和发射器。 转换器可将模拟音频麦克风信号转换为可能被抽取的数字代码。 加法器可以将每个级中的抽取的数字代码添加到来自前一级的抽取的数字代码的累积和。 这个新的和可以传送到下一个麦克风阶段,其中加法器可以将从该阶段抽取的数字代码添加到累积和。 可以使用串行接口连接每个级的发射机和接收机。 串行接口可以用于在级之间传送抽取的数字代码的累加和。 串行接口也可用于在各个级之间传输配置数据。

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