公开(公告)号：US20180136330A1

公开(公告)日：2018-05-17

申请号：US15808968

申请日：2017-11-10

申请人： Yasuhiro Nihei ,  Toshishige Fujii ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Yoichi Ichikawa ,  Masahiro Itoh

发明人： Yasuhiro Nihei ,  Toshishige Fujii ,  Takeshi Ogawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Yoichi Ichikawa ,  Masahiro Itoh

IPC分类号： G01S17/10 ,  G01S7/48 ,  G01S7/486

摘要： An distance measurement apparatus includes a light source to emit irradiation light, circuitry to output, to the light source, a first current that changes in accordance of light-emission timing information defining at least turn-on timing of the light source, and a second current that does not change in accordance of the light-emission timing information, a sensor to detect reflection light reflected from an object irradiated with the irradiation light emitted from the light source. The circuitry calculates a distance to the object based on a detection amount of the reflection light detected by the sensor.

公开(公告)号：US20180128919A1

公开(公告)日：2018-05-10

申请号：US15808674

申请日：2017-11-09

申请人： Yoichi Ichikawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Masahiro Itoh ,  Yasuhiro Nihei ,  Takeshi Ogawa ,  Toshishige Fujii

发明人： Yoichi Ichikawa ,  Hiroaki Tanaka ,  Shu Takahashi ,  Masahiro Itoh ,  Yasuhiro Nihei ,  Takeshi Ogawa ,  Toshishige Fujii

IPC分类号： G01S17/10

CPC分类号： G01S17/10 ,  G01S7/4914 ,  G01S17/32 ,  G01S17/89

摘要： A distance-measuring apparatus, a mobile object, a robot, a three-dimensional measuring device, a surveillance camera, and a distance-measuring method. The distance-measuring apparatus, a mobile object includes a light source to emit light, an imaging element to receive and photoelectrically convert the light into a plurality of electrical signals, and to obtain the electrical signals upon being sorted into a plurality of phase signals, and a computing unit to calculate distance to the object based on the phase signals. In the distance-measuring apparatus, a period of time during which the imaging element obtains the phase signals is different from a light emitting period of the light source in length. The distance-measuring method includes determining whether or not aliasing is present based on a light emitting period of the light source, a period of time during which the plurality of phase signals are obtained, and a result of the calculating.

公开(公告)号：US4078154A

公开(公告)日：1978-03-07

申请号：US712993

申请日：1976-08-09

申请人： Matsumi Suzuki ,  Yoichi Ichikawa

发明人： Matsumi Suzuki ,  Yoichi Ichikawa

IPC分类号： G10L15/10 ,  G10L15/02 ,  G10L17/00 ,  G10L1/00

CPC分类号： G10L15/02

摘要： A voice recognition system is disclosed using the centroid of frequency spectra obtained by frequency analysis of a voice as the characteristic parameter of the voice. The locus of the centroid is obtained by periodically measuring, during the utterance of a selected phrase, the average frequency and the average amplitude. The locus constitutes a pattern of the centroid of frequency spectra and is stored in a memory. During recognition a person keys in a known address to extract the stored pattern of his voice from the memory and then reutters the key phrase. The centroid of freqency spectra is recalculated and the locus obtained is compared with the one in the memory. Humming distance is defined as the distance between a recorded locus of centroid of frequency and a newly inputted locus of centroid of frequency.

摘要翻译： 公开了使用通过语音的频率分析获得的频谱的质心作为语音的特征参数的语音识别系统。 通过在所选择的短语的发音期间周期性地测量平均频率和平均幅度来获得质心的轨迹。 该轨迹构成频谱的质心的图案，并存储在存储器中。 在识别期间，人们键入已知地址以从存储器中提取其存储的语音模式，然后重新输入密钥短语。 重新计算频率谱的质心，并将获得的轨迹与存储器中的轨迹进行比较。 哼唱距离被定义为记录的频率质心轨迹与新输入的频率质心轨迹之间的距离。