公开(公告)号：US09871466B2

公开(公告)日：2018-01-16

申请号：US14747744

申请日：2015-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibin Guo ,  Kai Xin ,  Li Lu

IPC: H02M7/537 ,  H02M7/5387 ,  H02M7/5395 ,  H02M1/00

CPC classification number: H02M7/537 ,  H02M7/53871 ,  H02M7/5395 ,  H02M2001/0032 ,  H02M2001/0054 ,  Y02B70/1491 ,  Y02B70/16

Abstract: An inverter control method, apparatus, and system are provided. The method in the embodiments of the present invention includes obtaining power distribution line graph of an inverter switch according to an output power and an input voltage that are of an inverter; when an area to which the inverter belongs is a first area and the inverter switch works at a second frequency, switching the inverter switch to a first frequency; and when the area to which the inverter belongs is a second area and the inverter switch works at the first frequency, switching the inverter switch to the second frequency. In the embodiments of the present invention, whether a working frequency of an inverter switch needs to be changed is determined according to an output power and an input voltage, which improves control efficiency, thereby effectively improving conversion efficiency of an inverter.

公开(公告)号：US09142210B2

公开(公告)日：2015-09-22

申请号：US14145318

申请日：2013-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Zhang ,  Hualin Wan ,  Jun Zhang ,  Li Lu

IPC: G10L17/00 ,  G10L17/02 ,  G10L17/06 ,  G10L15/14 ,  G10L17/10 ,  G10L17/04 ,  G10L17/08

CPC classification number: G10L15/14 ,  G10L17/00 ,  G10L17/04 ,  G10L17/06 ,  G10L17/08 ,  G10L17/10

Abstract: A method and device for speaker recognition are provided. In the present invention, identifiability re-estimation is performed on a first vector (namely, a weight vector) in a score function by adopting a support vector machine (SVM), so that a recognition result of a characteristic parameter of a test voice is more accurate, thereby improving identifiability of speaker recognition.

Abstract translation: 提供了用于说话者识别的方法和装置。 在本发明中，通过采用支持向量机（SVM）对得分函数中的第一向量（即权重向量）进行可识别性再估计，使得测试语音的特征参数的识别结果为 更准确，从而提高说话人识别的识别能力。

公开(公告)号：US20150381073A1

公开(公告)日：2015-12-31

申请号：US14747744

申请日：2015-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haibin Guo ,  Kai Xin ,  Li Lu

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02M7/53871 ,  H02M7/5395 ,  H02M2001/0032 ,  H02M2001/0054 ,  Y02B70/1491 ,  Y02B70/16

Abstract: An inverter control method, apparatus, and system are provided. The method in the embodiments of the present invention includes obtaining power distribution line graph of an inverter switch according to an output power and an input voltage that are of an inverter; when an area to which the inverter belongs is a first area and the inverter switch works at a second frequency, switching the inverter switch to a first frequency; and when the area to which the inverter belongs is a second area and the inverter switch works at the first frequency, switching the inverter switch to the second frequency. In the embodiments of the present invention, whether a working frequency of an inverter switch needs to be changed is determined according to an output power and an input voltage, which improves control efficiency, thereby effectively improving conversion efficiency of an inverter.

Abstract translation: 提供了一种逆变器控制方法，装置和系统。 本发明实施例中的方法包括：根据反相器的输出功率和输入电压获得逆变器开关的配电线图; 当逆变器所属的区域是第一区域并且逆变器开关以第二频率工作时，将逆变器开关切换到第一频率; 并且当变频器所属的区域是第二区域并且逆变器开关以第一频率工作时，将逆变器开关切换到第二频率。 在本发明的实施例中，根据输出功率和输入电压来确定逆变器开关的工作频率是否需要改变，这提高了控制效率，从而有效地提高了逆变器的转换效率。