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    • 1. 发明授权
    • Integrated circuit and method of detecting a data integrity error
    • 集成电路和检测数据完整性错误的方法
    • US09400708B2
    • 2016-07-26
    • US14483262
    • 2014-09-11
    • Dirk WendelMichael RohlederRolf Schlagenhaft
    • Dirk WendelMichael RohlederRolf Schlagenhaft
    • G06F11/00G06F11/07
    • G06F11/079G06F11/0736G06F11/0751G06F11/0772
    • An integrated circuit comprises a write bus coupled to a register for storing control data. A storage unit is arranged to store reference signature data encoding a reference collective state of the register. First logic circuitry generates actual signature data encoding the actual collective state of the register. Second logic circuitry is coupled to the storage unit, receives the actual signature data and compares the actual signature data with the reference signature data. The second logic circuitry comprises an alert output to provide an alert signal in response to the comparison identifying a difference between the actual signature data and the reference signature data, thereby ensuring detection of a data integrity error in respect of the register. An alert inhibitor comprises a control input and is responsive to the control input and arranged to inhibit selectively onward propagation of the alert signal from the alert output.
    • 集成电路包括耦合到用于存储控制数据的寄存器的写总线。 存储单元被布置为存储编码寄存器的参考集合状态的参考签名数据。 第一逻辑电路生成编码寄存器的实际集体状态的实际签名数据。 第二逻辑电路耦合到存储单元,接收实际签名数据并将实际签名数据与参考签名数据进行比较。 第二逻辑电路包括警报输出,以响应于比较识别实际签名数据和参考签名数据之间的差异来提供警报信号,从而确保检测关于该寄存器的数据完整性错误。 警报抑制器包括控制输入并且响应于控制输入并被布置成禁止警报信号从警报输出中选择性地向前传播。
    • 5. 发明授权
    • Synchronous circuit, method of designing a synchronous circuit, and method of validating a synchronous circuit
    • 同步电路,同步电路的设计方法以及同步电路的验证方法
    • US09244123B1
    • 2016-01-26
    • US14552543
    • 2014-11-25
    • Thomas KochIlhan HatirnazMichael Rohleder
    • Thomas KochIlhan HatirnazMichael Rohleder
    • G06F17/50G01R31/317G01R31/3177
    • G01R31/31726G01R31/31727G01R31/3177G06F17/505
    • A synchronous circuit comprises a functional circuitry and one or more validation circuits for validating synchronization of the functional circuitry. The functional and the validation circuits are clocked by a clock source. Each validation circuit comprises a clock distribution network, a test signal generator, a capture cell, a test signal path from the test signal generator to the capture cell, and a verification unit. The clock distribution network applies a launch clock signal at the test signal generator and a capture clock signal at the capture cell. The test signal generator produces a bi-level test signal. The test signal path transmits the test signal to the capture cell, which generates a proof sequence by sampling the test signal. The verification unit determines whether the proof sequence is identical to the test sequence.A method of designing a synchronous circuit and method of validating a synchronous circuit are also described.
    • 同步电路包括功能电路和用于验证功能电路的同步的一个或多个确认电路。 功能和验证电路由时钟源提供时钟。 每个验证电路包括时钟分配网络,测试信号发生器,捕获单元,从测试信号发生器到捕获单元的测试信号路径,以及验证单元。 时钟分配网络在测试信号发生器处应用发射时钟信号,并在捕捉单元处施加捕获时钟信号。 测试信号发生器产生双电平测试信号。 测试信号路径将测试信号发送到捕获单元,其通过对测试信号进行采样来产生校验序列。 验证单元确定验证序列是否与测试序列相同。 还描述了设计同步电路的方法和验证同步电路的方法。