-
公开(公告)号：US10890653B2
公开(公告)日：2021-01-12
申请号：US16108815
申请日：2018-08-22
申请人： Google LLC
摘要： This document describes techniques and systems that enable radar-based gesture enhancement for voice interfaces. The techniques and systems use a radar field to accurately determine three-dimensional (3D) gestures that can be used instead of, or in combination with, a voice interface to enhance interactions with voice-controllable electronic devices. These techniques allow the user to make 3D gestures from a distance to provide a voice input trigger (e.g., a “listen” gesture), interrupt and correct inaccurate actions by the voice interface, and make natural and precise adjustments to functions controlled by voice commands.
-
公开(公告)号：US10817070B2
公开(公告)日：2020-10-27
申请号：US16252477
申请日：2019-01-18
发明人： Jaime Lien , Erik M. Olson , Patrick M. Amihood , Ivan Poupyrev
摘要： This document describes techniques for radio frequency (RF) based micro-motion tracking. These techniques enable even millimeter-scale hand motions to be tracked. To do so, radar signals are used from radar systems that, with conventional techniques, would only permit resolutions of a centimeter or more.
-
83.发明授权公开(公告)号：US10794997B2
公开(公告)日：2020-10-06
申请号：US16106315
申请日：2018-08-21
申请人： Google LLC
摘要： Techniques and apparatuses are described that implement smartphone-based power-efficient radar processing and memory provisioning for detecting gestures. The described techniques map different situations that occur with a user to different memory states. A radar processing system's memory management module allocates at least one memory pool according to an active memory state. As the radar system detects different situations that occur with the user, the memory management module reallocates the memory pool for the appropriate memory state, which can adjust a power mode of the radar system. In some cases, physically separate memories may be allocated for different memory states, which respectively include one or more sequences that are executed by different processors. The memory management module enables efficient use of available power and available memory for radar processing such that a total amount of power and a total size of memory used may be significantly reduced for detecting gestures.
-
84.发明授权公开(公告)号：US10770035B2
公开(公告)日：2020-09-08
申请号：US16109534
申请日：2018-08-22
申请人： Google LLC
摘要： This document describes techniques and systems that enable a smartphone-based radar system for facilitating awareness of user presence and orientation. The techniques and systems use a radar field to accurately determine a user's location and physical orientation with respect to an electronic device, such as a smartphone. The radar field also enables the device to receive 3D gestures from the user to interact with the device. The techniques allow the device to provide functionality based on the user's presence and orientation, and to appropriately adjust the timing, content, and format of the device's interactions with the user.
-
85.发明授权公开(公告)号：US10579154B1
公开(公告)日：2020-03-03
申请号：US16105958
申请日：2018-08-20
申请人： Google LLC
摘要： Techniques and apparatuses are described that implement a smartphone-based radar system capable of detecting user gestures using coherent multi-look radar processing. Different approaches use a multi-look interferometer or a multi-look beamformer to coherently average multiple looks of a distributed target across two or more receive channels according to a window that spans one or more dimensions in time, range, or Doppler frequency. By coherently averaging the multiple looks, a radar system generates radar data with higher gain and less noise. This enables the radar system to achieve higher accuracies and be implemented within a variety of different devices. With these accuracies, the radar system can support a variety of different applications, including gesture recognition or presence detection.
-
86.发明申请公开(公告)号：US20200066236A1
公开(公告)日：2020-02-27
申请号：US16109534
申请日：2018-08-22
申请人： Google LLC
摘要： This document describes techniques and systems that enable a smartphone-based radar system for facilitating awareness of user presence and orientation. The techniques and systems use a radar field to accurately determine a user's location and physical orientation with respect to an electronic device, such as a smartphone. The radar field also enables the device to receive 3D gestures from the user to interact with the device. The techniques allow the device to provide functionality based on the user's presence and orientation, and to appropriately adjust the timing, content, and format of the device's interactions with the user.
-
公开(公告)号：US20190243464A1
公开(公告)日：2019-08-08
申请号：US16389402
申请日：2019-04-19
发明人： Jaime Lien , Patrick M. Amihood , Ivan Poupyrev
CPC分类号： G06F3/017 , G01S7/292 , G01S7/354 , G01S7/415 , G01S13/08 , G01S13/58 , G01S13/88 , G06F3/011
摘要： This document describes techniques and devices for type-agnostic radio frequency (RF) signal representations. These techniques and devices enable use of multiple different types of radar systems and fields through type-agnostic RF signal representations. By so doing, recognition and application-layer analysis can be independent of various radar parameters that differ between different radar systems and fields.
-
公开(公告)号：US20190187268A1
公开(公告)日：2019-06-20
申请号：US15844460
申请日：2017-12-15
申请人： Google LLC
IPC分类号： G01S13/42
CPC分类号： G01S13/426 , G01S7/412 , G01S13/422 , G01S2013/0254
摘要： Techniques and apparatuses are described for radar angular ambiguity resolution. These techniques enable a target's angular position to be determined from a spatial response that has multiple amplitude peaks. Instead of solely considering which peak has a highest amplitude, the techniques for radar angular ambiguity resolution select a frequency sub-spectrum, or multiple frequency sub-spectrums, that emphasize amplitude or phase differences in the spatial response and analyze an irregular shape of the spatial response across a wide field of view to determine the target's angular position. In this way, each angular position of the target has a unique signature, which the radar system can determine and use to resolve the angular ambiguities. Using these techniques, the radar can have an antenna array element spacing that is greater than half a center wavelength of a reflected radar signal that is used to detect the target.
-
公开(公告)号：US20190155396A1
公开(公告)日：2019-05-23
申请号：US16252477
申请日：2019-01-18
发明人： Jaime Lien , Erik M. Olson , Patrick M. Amihood , Ivan Poupyrev
摘要： This document describes techniques for radio frequency (RF) based micro-motion tracking. These techniques enable even millimeter-scale hand motions to be tracked. To do so, radar signals are used from radar systems that, with conventional techniques, would only permit resolutions of a centimeter or more.
-
-
-
-
-
-
-
-
搜索结果
89 条记录 (耗时 0.02 秒)
