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    • 52. 发明授权
    • Radar device
    • 雷达设备
    • US07602477B2
    • 2009-10-13
    • US11076294
    • 2005-03-09
    • Mitsuo NakamuraKatsuhiro Morikawa
    • Mitsuo NakamuraKatsuhiro Morikawa
    • G01C3/08G01S13/00
    • G01S17/023G01S7/497G01S17/936G01S2007/4975
    • A laser radar sensor includes a light emitting circuit, a light receiving circuit, an object detection circuit, and a CPU. The object detection circuit has a summation block, a noise reference determination block, a noise reference storing block, and a differentiation block. The summation block sums up photoreception signals outputted from a photoreceptor also included in the radar sensor and produces a summation signal. The noise reference determination block determines the summation signal outputted in a condition that no object is present in a detection area as a noise reference signal. The noise reference storing block stores the noise reference signal. The differentiation block calculates a subtraction signal by subtracting the noise reference signal from the summation signal for removing a noise component from the summation signal. Object detection is performed based on the subtraction signal. With this configuration, an object is properly detected even when a protection cover of the radar sensor has a dirty spot on its surface.
    • 激光雷达传感器包括发光电路,光接收电路,物体检测电路和CPU。 物体检测电路具有求和块,噪声参考确定块,噪声参考存储块和微分块。 求和块总结从也包含在雷达传感器中的感光体输出的光接收信号,并产生求和信号。 噪声参考确定块确定在检测区域中没有物体作为噪声参考信号存在的条件下输出的求和信号。 噪声参考存储块存储噪声参考信号。 微分块通过从求和信号中减去来自求和信号的噪声分量的噪声参考信号来计算减法信号。 基于减法信号进行对象检测。 利用这种配置,即使当雷达传感器的保护盖在其表面上具有脏污点时,也能正确检测物体。
    • 53. 发明授权
    • Signal processing apparatus
    • 信号处理装置
    • US07460062B2
    • 2008-12-02
    • US11823821
    • 2007-06-28
    • Mitsuo Nakamura
    • Mitsuo Nakamura
    • G01S13/00G01S13/08
    • G01S17/936G01S7/486G01S7/487G01S7/4873
    • A first AD converter subjects an analog signal to AD conversion by a first AD clock, and a second AD converter subjects the same analog signal to AD conversion by a second AD clock that is shifted in phase from the first AD clock by half cycle. FF circuits store the AD conversion results of the first AD converter and the second AD converter by the first AD clock and the second AD clock, respectively. FF circuits store the data of the FF circuits by the first AD clock, separately. A DPRAM writes the respective data that are stored by the FF circuits by the first AD clock as a group of data, divides the group of written data into the respective data, and reads the respective data by a logic clock in twice to output the data to an integration circuit.
    • 第一AD转换器通过第一AD时钟对模拟信号进行AD转换,并且第二AD转换器通过从第一AD时钟相位偏移半个周期的第二AD时钟使相同的模拟信号进行AD转换。 FF电路分别将第一AD转换器和第二AD转换器的AD转换结果分别存储第一AD时钟和第二AD时钟。 FF电路分别存储第一个A​​D时钟的FF电路的数据。 DPRAM将由FF电路存储的第一AD时钟的各个数据作为一组数据写入,将写入的数据组划分成各自的数据,并通过两次的逻辑时钟读取相应的数据以输出数据 到集成电路。
    • 54. 发明申请
    • Radar apparatus
    • 雷达装置
    • US20070291249A1
    • 2007-12-20
    • US11818256
    • 2007-06-13
    • Mitsuo Nakamura
    • Mitsuo Nakamura
    • G01C3/08
    • G01S7/487G01S7/4817G01S7/486G01S17/42G01S17/936
    • The radar apparatus includes a laser light emitting section successively emitting laser lights, a reflection light detecting section receiving, as reflection lights, the laser lights reflected from an object, and generating light reception signals containing reflection signals respectively derived from the reflection lights and having signal levels depending on intensities of the reflection lights, an integrating section generating an integrated signal by integrating the light reception signals, the integrated signal containing the reflection signals being integrated, a phase shifted signal generating section generating a phase shifted signal by delaying the integrated signal by a predetermined time, a differential signal calculating section calculating, as a differential signal, a difference between the integrated signal and the phase-shifted signal, and a detector section detecting the object on the basis of a peak waveform of the differential signal caused by a rising edge of the reflection signals being integrated.
    • 该雷达装置包括依次发射激光的激光发射部分,反射光检测部分,其接收从物体反射的激光作为反射光,并产生包含反射信号的光接收信号,该反射信号分别从反射光导出并具有信号 取决于反射光的强度的积分部分,通过积分光接收信号产生积分信号的积分部分,包含被积分的反射信号的积分信号,相移信号产生部分,通过将积分信号延迟由 差分信号计算部分,计算积分信号和相移信号之间的差分作为差分信号;以及检测器部分,基于由该信号引起的差分信号的峰值波形检测对象 上升的边缘 反射信号被集成。
    • 57. 发明申请
    • Radar device
    • 雷达设备
    • US20050200833A1
    • 2005-09-15
    • US11076294
    • 2005-03-09
    • Mitsuo NakamuraKatsuhiro Morikawa
    • Mitsuo NakamuraKatsuhiro Morikawa
    • G01S7/292G01C3/02G01C3/08G01S7/40G01S7/497G01S13/00G01S13/93G01S17/93
    • G01S17/023G01S7/497G01S17/936G01S2007/4975
    • A laser radar sensor includes a light emitting circuit, a light receiving circuit, an object detection circuit, and a CPU. The object detection circuit has a summation block, a noise reference determination block, a noise reference storing block, and a differentiation block. The summation block sums up photoreception signals outputted from a photoreceptor also included in the radar sensor and produces a summation signal. The noise reference determination block determines the summation signal outputted in a condition that no object is present in a detection area as a noise reference signal. The noise reference storing block stores the noise reference signal. The differentiation block calculates a subtraction signal by subtracting the noise reference signal from the summation signal for removing a noise component from the summation signal. Object detection is performed based on the subtraction signal. With this configuration, an object is properly detected even when a protection cover of the radar sensor has a duty spot on its surface.
    • 激光雷达传感器包括发光电路,光接收电路,物体检测电路和CPU。 物体检测电路具有求和块,噪声参考确定块,噪声参考存储块和微分块。 求和块总结从也包含在雷达传感器中的感光体输出的光接收信号,并产生求和信号。 噪声参考确定块确定在检测区域中没有物体作为噪声参考信号存在的条件下输出的求和信号。 噪声参考存储块存储噪声参考信号。 微分块通过从求和信号中减去来自求和信号的噪声分量的噪声参考信号来计算减法信号。 基于减法信号进行对象检测。 利用这种配置,即使当雷达传感器的保护盖在其表面上具有占空比位置时,也能够正确检测物体。