专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

CN113692750A 使用声音场景分析和波束形成的声传递函数个性化失效
公开(公告)号：CN113692750A
公开(公告)日：2021-11-23
申请号：CN202080027556.3
申请日：2020-03-31
申请人：脸谱科技有限责任公司
发明人：弗拉迪米尔·图尔巴宾 , 雅各布·瑞恩·唐利 , 安东尼奥·约翰·米勒 , 拉维什·迈赫拉
IPC分类号： H04S7/00 , G01S3/807
摘要：可穿戴设备的音频系统动态地更新声传递函数。音频系统被配置为估计由麦克风阵列检测到的每个声源相对于在局部区域内的可穿戴设备的位置的到达方向(DoA)。音频系统可以跟踪每个声源的移动。音频系统可以在每个声源的方向上形成波束。音频系统可以基于声源属性来识别每个声源和将每个声源分类。基于DoA估计、移动跟踪和波束形成，音频系统生成或更新声源的声传递函数。

2. 发明专利

IL112485A Image-based detection and tracking system and processing method employing clutter measurements and signal-to-clutter ratios 未知
公开(公告)号：IL112485A
公开(公告)日：1999-04-11
申请号：IL11248595
申请日：1995-01-30
申请人： HUGHES AIRCRAFT CO
IPC分类号： H04N7/18 , G01S3/782 , G01S3/786 , G01S3/807 , G01S7/292 , G01S7/32 , G01S13/72 , G06K9/32 , G06T1/00 , G06T5/00 , G01S13/66
摘要： A method (30) for measuring and quantifying clutter, and target detection and tracking systems (10) that employs wavelet-based clutter quantification to generate a clutter number and a signal-to-clutter ratio derived therefrom to achieve improved target detection performance. The method (30) processes video signals representative of an image scene (14) containing a target (15) and background clutter (16) to provide for more accurate tracking of the target (15) by a tracker(s) (21). The method (30) comprises processing (31) the video signals to compute a wavelet clutter number, processing (32) the video signals to compute a signal-to clutter ratio using the wavelet clutter number, and generating (33) a pointer to a lookup table that sets parameters and selects the tracker (21) that is to be used to track the target (15) based upon the computed signal-to clutter ratio. The target detection and tracking system (10) tracks a target (15) located in an image scene (14) containing clutter (16). The system (10) comprises a sensor (11) for generating video signals representative of the image scene (14) that contains the target (15) and the background clutter (16). A tracking computer (12) is coupled to the sensor (11) that comprises a tracker(s) (21) that implement predetermined tracking algorithms that are designed to track different types of targets (15). A wavelet-based signal-to-clutter processor (20) is coupled between the sensor (11) and each of the tracker(s) (21) for processing the video signals to compute the wavelet clutter number and the signal-to clutter ratio using the wavelet clutter number, and for generating a pointer to a lookup table that sets parameters and selects a particular tracker (21) or tracking algorithm that is to be used to track the target (15) based upon the computed signal-to clutter ratio. A display monitor (13) may be coupled to the tracker(s) (21) for viewing the tracked target (15) and the image scene (14). The computed signal-to clutter ratio corresponds to target contrast divided by the clutter number, where the contrast is defined as the difference between a peak gray level (Pt) of the target (15) and a local background gray level ( mu b).

3. 发明专利

SE9402088D0 未知
公开(公告)号：SE9402088D0
公开(公告)日：1994-06-14
申请号：SE9402088
申请日：1994-06-14
申请人： VOLVO AB
发明人： NORDEBO SVEN , NORDHOLM SVEN , CLAESSON INGVAR
IPC分类号： G10L15/20 , G01S3/807 , G10K11/34 , G10L21/0208 , G10L21/0216 , H01Q3/26 , H03H21/00 , H04B7/26 , H04M1/60 , H04R3/00

4. 发明授权

US4283767A Multiple correlator reference processor 失效
标题翻译：多个相关器参考处理器
公开(公告)号：US4283767A
公开(公告)日：1981-08-11
申请号：US35750
申请日：1979-05-03
申请人： Hoyt S. Rountree
发明人： Hoyt S. Rountree
IPC分类号： G01S3/80 , G01S3/807 , G01S3/808 , G01S3/86 , G06F15/20 , G06G7/19
CPC分类号： G01S3/86 , G01S3/8006 , G01S3/807 , G01S3/8083 , Y10S367/901
摘要： A signal processor for use with an array of antenna elements comprises a plurality of pairs of receiver channels which receive signals from respective halves of the array. The component of the signals resulting from noise, such as the noise generated within the ocean, is substantially decorrelated between the respective halves of the array, while a component of the signal obtained from a source of a desired signal is coherent between the two halves of the array. The signals in each pair of channels are translated to intermediate frequencies by mixing the signals with reference signals of differing frequencies in each of the respective pairs of channels. The translated signals in each pair of channels are then multiplied together to produce a signal of substantially constant amplitude which is suitable for detection, or for a bearing deviation indication. Output signals of the respective multipliers are summed together and passed through a low pass filter having a pass band approximately equal to the reciprocal of the anticipated dwell time of the signal source within the beam width of the array of antenna elements. The uncorrelated noise results in an alternating component in the products of the respective multipliers which are substantially cancelled in the summing and filtering to produce a higher signal-to-noise ratio.
摘要翻译：与天线元件阵列一起使用的信号处理器包括从阵列的相应半部接收信号的多对接收器通道。由诸如在海洋中产生的噪声的噪声产生的信号的分量在阵列的相应的一半之间基本上解相关，而从期望信号的源获得的信号的分量在两阵列。通过将信号与相应频道对中的每一对中的不同频率的参考信号进行混合，将每对信道中的信号转换为中频。然后将每对通道对中的转换信号相乘，以产生适用于检测或轴承偏差指示的幅度基本恒定的信号。相应乘法器的输出信号被相加在一起并通过低通滤波器，该低通滤波器的通带近似等于天线元件阵列的波束宽度内的信号源的预期驻留时间的倒数。不相关的噪声导致相乘乘法器的乘积中的交替分量，它们在求和和滤波中基本上消除以产生更高的信噪比。

5. 发明授权

US3763465A Bearing deviation indicator 失效
标题翻译：轴承偏差指示器
公开(公告)号：US3763465A
公开(公告)日：1973-10-02
申请号：US3763465D
申请日：1971-03-09
申请人： US ARMY
发明人： TATGE R , WELLS R
IPC分类号： G01S3/807 , G01S3/80
CPC分类号： G01S3/807
摘要： The disclosure describes an improved bearing deviation indicator for detecting and tracking noise sources such as, for example, those produced by vehicles. The device comprises a rotatable acoustic array which generates electrical analogs of the noise waves which are coupled to novel signal processing means which produce signals indicative of alignment of the acoustic array with the noise source or deviation of the acoustic array from the noise source. The signals are coupled to servo means which in response thereto rotates the array to align it with the noise source.
摘要翻译：本公开描述了用于检测和跟踪噪声源（例如由车辆产生的）的改进的轴承偏差指示器。该装置包括可旋转的声阵列，其产生噪声波的电模拟，耦合到新颖的信号处理装置，该信号处理装置产生指示声阵列与噪声源对准的信号或声阵列与噪声源的偏离。信号耦合到伺服装置，伺服装置响应于此，使阵列旋转以将其与噪声源对准。

6. 发明专利

CA2426502A1 METHOD TO OPERATE A HEARING DEVICE AND ARRANGEMENT WITH A HEARING DEVICE 未知
公开(公告)号：CA2426502A1
公开(公告)日：2003-12-14
申请号：CA2426502
申请日：2003-04-24
申请人： PHONAK AG
发明人： DRTINA PETER
IPC分类号： G01S3/807 , G01S5/18 , H04R25/00 , A61F11/00 , G10K15/00
摘要： For the operation of a hearing device having an adjustable transfer function being adjusted by changing a parameter set, a reference person direction is determined in orde r to ensure that communication between a hearing device user and at least one reference perso n can take place properly. The reference person direction is defined by the position of the reference person and the hearing device user viewed from the hearing device user. On the basis of the determined reference person direction the transfer function of the hearing device is adjusted by changing the parameter set in such a way that the direction characteristics of the hearing device is aligned with the reference person. By processing of information regarding direction of a reference person in relation to the hearing device user in the hearing device, the possibility is provided to substantially improve the communication in every day life, in particular in the living area, more particularly between a hearing device user and his fellow occupants. By the present invention, the opportunity is given for a reference person to start and to lead a communication at any time and from any position with the hearing device user, and the reference person is not obliged to change his or her position in such a way that a conversation can be started at all. In particular, reference people having a close relationship to the hearing device user, whi ch reference people have mostly initiated the use of a hearing device, are now confronted with the problem of starting a conversation. With the help of the present invention these circumstances could have been considerably improved.

7. 发明专利

CA2141068A1 Image-Based Detection and Tracking System and Processing Method Employing Clutter Measurements and Signal-to-Clutter Ratios 未知
公开(公告)号：CA2141068A1
公开(公告)日：1995-08-03
申请号：CA2141068
申请日：1995-01-25
申请人： HUGHES AIRCRAFT CO
发明人： GROVES GILLIAN K , CHACON KIM M , PRAGER KENNETH E
IPC分类号： H04N7/18 , G01S3/782 , G01S3/786 , G01S3/807 , G01S7/292 , G01S7/32 , G01S13/72 , G06K9/32 , G06T1/00 , G06T5/00 , G01S17/66 , G01S17/89 , G01S7/491
摘要： A method (30) for measuring and quantifying clutter, and target detection and tracking systems (10) that employs wavelet-based clutter quantification to generate a clutter number and a signal-to-clutter ratio derived therefrom to achieve improved target detection performance. The method (30) processes video signals representative of an image scene (14) containing a target (15) and background clutter (16) to provide for more accurate tracking of the target (15) by a tracker(s) (21). The method (30) comprises processing (31) the video signals to compute a wavelet clutter number, processing (32) the video signals to compute a signal-to clutter ratio using the wavelet clutter number, and generating (33) a pointer to a lookup table that sets parameters and selects the tracker (21) that is to be used to track the target (15) based upon the computed signal-to clutter ratio. The target detection and tracking system (10) tracks a target (15) located in an image scene (14) containing clutter (16). The system (10) comprises a sensor (11) for generating video signals representative of the image scene (14) that contains the target (15) and the background clutter (16). A tracking computer (12) is coupled to the sensor (11) that comprises a tracker(s) (21) that implement predetermined tracking algorithms that are designed to track different types of targets (15). A wavelet-based signal-to-clutter processor (20) is coupled between the sensor (11) and each of the tracker(s) (21) for processing the video signals to compute the wavelet clutter number and the signal-to clutter ratio using the wavelet clutter number, and for generating a pointer to a lookup table that sets parameters and selects a particular tracker (21) or tracking algorithm that is to be used to track the target (15) based upon the computed signal-to clutter ratio. A display monitor (13) may be coupled to the tracker(s) (21) for viewing the tracked target (15) and the image scene (14). The computed signal-to clutter ratio corresponds to target contrast divided by the clutter number, where the contrast is defined as the difference between a peak gray level (Pt) of the target (15) and a local background gray level ( mu b).

8. 发明专利

IL112485D0 Image-based detection and tracking system and processing method employing clutter measurements and signal-to-clutter ratios 未知
公开(公告)号：IL112485D0
公开(公告)日：1995-06-29
申请号：IL11248595
申请日：1995-01-30
申请人： HUGHES AIRCRAFT CO
IPC分类号： H04N7/18 , G01S3/782 , G01S3/786 , G01S3/807 , G01S7/292 , G01S7/32 , G01S13/72 , G06K9/32 , G06T1/00 , G06T5/00 , G01S
摘要： A method (30) for measuring and quantifying clutter, and target detection and tracking systems (10) that employs wavelet-based clutter quantification to generate a clutter number and a signal-to-clutter ratio derived therefrom to achieve improved target detection performance. The method (30) processes video signals representative of an image scene (14) containing a target (15) and background clutter (16) to provide for more accurate tracking of the target (15) by a tracker(s) (21). The method (30) comprises processing (31) the video signals to compute a wavelet clutter number, processing (32) the video signals to compute a signal-to clutter ratio using the wavelet clutter number, and generating (33) a pointer to a lookup table that sets parameters and selects the tracker (21) that is to be used to track the target (15) based upon the computed signal-to clutter ratio. The target detection and tracking system (10) tracks a target (15) located in an image scene (14) containing clutter (16). The system (10) comprises a sensor (11) for generating video signals representative of the image scene (14) that contains the target (15) and the background clutter (16). A tracking computer (12) is coupled to the sensor (11) that comprises a tracker(s) (21) that implement predetermined tracking algorithms that are designed to track different types of targets (15). A wavelet-based signal-to-clutter processor (20) is coupled between the sensor (11) and each of the tracker(s) (21) for processing the video signals to compute the wavelet clutter number and the signal-to clutter ratio using the wavelet clutter number, and for generating a pointer to a lookup table that sets parameters and selects a particular tracker (21) or tracking algorithm that is to be used to track the target (15) based upon the computed signal-to clutter ratio. A display monitor (13) may be coupled to the tracker(s) (21) for viewing the tracked target (15) and the image scene (14). The computed signal-to clutter ratio corresponds to target contrast divided by the clutter number, where the contrast is defined as the difference between a peak gray level (Pt) of the target (15) and a local background gray level ( mu b).

9. 发明专利

AU8853391A SMART TRACKING SYSTEM 未知
公开(公告)号：AU8853391A
公开(公告)日：1992-03-30
申请号：AU8853391
申请日：1991-09-04
申请人： VISIONARY PRODUCTS INC
发明人： SIEBER JONATHAN D , SIEBER JOSEPH S , STEWART WILLIAM K
IPC分类号： G01S3/808 , G01S3/807 , H04N5/232 , H04N7/18

10. 发明专利

NL7514417A 未知
公开(公告)号：NL7514417A
公开(公告)日：1976-06-14
申请号：NL7514417
申请日：1975-12-10
申请人： CIT ALCATEL
IPC分类号： G01S3/807 , G01S3/808 , G10K11/34 , G01S7/54

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式