中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

80 records (took 0.027 seconds)

    Motion-based adaptive scanning
    61.
    发明授权
    Motion-based adaptive scanning 有权

    公开(公告)号：US10292105B2

    公开(公告)日：2019-05-14

    申请号：US13854813

    申请日：2013-04-01

    Applicant: Apple Inc.

    Inventor： Kapil Chhabra ,  Tito Thomas ,  Vinesh Pallen

    IPC: H04W52/02 ,  H04W48/16

    Abstract: In order to facilitate reduced power consumption of an electronic device (such as a smartphone) when communicating with another electronic device (such as an access point) in a wireless network, the electronic device may change a frequency of network scans performed by an interface circuit in the electronic device based on a motion profile of the electronic device. In particular, the electronic device may determine the motion profile based on spatial information, such as: acceleration data, orientation data, Global Positioning System data and/or data from the wireless network. Then, the electronic device may change the frequency of the network scans performed by the interface circuit based on the motion profile. In this way, the frequency of the network scans can be reduced when the electronic device is stationary or moving rapidly (such as when a user of the electronic device is driving in a car).

    Secure wireless ranging
    62.
    发明授权
    Secure wireless ranging 有权

    公开(公告)号：US10033760B2

    公开(公告)日：2018-07-24

    申请号：US15227391

    申请日：2016-08-03

    Applicant: Apple Inc.

    Inventor： Kapil Chhabra ,  Welly Kasten

    IPC: G06F11/00 ,  H04L29/06 ,  H04L29/08 ,  H04W12/12 ,  G01S5/02 ,  H04W4/02 ,  H04W64/00 ,  H04W4/80 ,  H04W84/12 ,  H04W88/02

    Abstract: Embodiments for securely determining a separation distance between wireless communication devices is provided. These embodiments include receiving a measurement request and a first random identifier from a first wireless communication device at a second wireless communication device. The embodiments also includes deriving a transient key using the first random identifier, a second random identifier (generated by the second device), and a pre-shared key. The first and second random identifiers, the pre-shared key, and the transient key derived therefrom are shared between the first and second devices, but are not known to any other devices. The embodiments further include encrypting measurement data exchanged between the two devices using the transient key, and using the encrypted measurement data to calculate and verify a separation distance between the devices. The embodiments thus prevent dishonest wireless communication devices from intercepting communications and spoofing a location of one of the two honest devices.

    Buffered indication of individually addressed traffic with reduced power consumption
    67.
    发明授权
    Buffered indication of individually addressed traffic with reduced power consumption 有权

    公开(公告)号：US09713088B2

    公开(公告)日：2017-07-18

    申请号：US14049149

    申请日：2013-10-08

    Applicant: Apple Inc.

    Inventor： Kapil Chhabra ,  Veerendra Boodannavar

    IPC: H04W52/02

    CPC classification number: H04W52/0225 ,  H04W52/0216 ,  Y02D70/142

    Abstract: Embodiments provide a technique for enabling a wireless device to operate in a power saving mode without completely cutting off the wireless device from receiving outside communications. The technique includes, at an access point (AP), generating traffic indication map (TIM) information that indicates whether downlink data directed to the wireless device is buffered at the AP. The AP precedes a beacon frame with at least one “lightweight” traffic indication map (TIM) frame that includes the TIM information, which is a subset of the information that is included in the beacon frame. The AP can be configured to transmit the TIM broadcast frame, the beacon frame, and any other frames that include the TIM information during a single transmit opportunity to reduce the number of instances where the wireless device is required to transition from an idle state to a listen state.

    Extending Use of a Cellular Communication Capabilities in a Wireless Device to Another Device
    68.
    发明申请
    Extending Use of a Cellular Communication Capabilities in a Wireless Device to Another Device 审中-公开

    公开(公告)号：US20170150542A1

    公开(公告)日：2017-05-25

    申请号：US15422664

    申请日：2017-02-02

    Applicant: Apple Inc.

    Inventor： Kapil Chhabra

    IPC: H04W76/02 ,  H04W4/16 ,  H04M3/54

    CPC classification number: H04W76/14 ,  H04M1/7253 ,  H04M3/54 ,  H04M15/7652 ,  H04M2250/06 ,  H04W4/16 ,  H04W8/005 ,  H04W84/12 ,  H04W88/04 ,  H04W88/08

    Abstract: Extending cellular telecommunication service from a first UE to another device. The first UE may register for cellular telecommunication service with a cellular network using a first cellular service account, using a cellular communication link via a cellular radio. A second device may be discovered and a communication link may be established between the first UE and the second device. The second device may be registered to use cellular telecommunication capability provided by the first UE. Communications between the second device and the cellular network may be conveyed via the communication link between the first UE and the second device and the cellular communication link. Conveying communications between the second device and the cellular network may provide use of the first cellular service account for cellular telecommunication service to the second device.

    Wireless link quality monitoring
    69.
    发明授权
    Wireless link quality monitoring 有权
    无线链路质量监控

    公开(公告)号：US09591497B2

    公开(公告)日：2017-03-07

    申请号：US14291765

    申请日：2014-05-30

    Applicant: Apple Inc.

    Inventor： Chaitanya Mannemala ,  Kapil Chhabra ,  Franco Travostino ,  Veerendra Boodnnavar

    IPC: H04W24/04 ,  H04W76/02 ,  H04W84/12

    CPC classification number: H04W24/04 ,  H04W76/18 ,  H04W84/12

    Abstract: Wi-Fi link health monitoring by a wireless device. Signal strength (e.g., RSSI) of a Wi-Fi link may be monitored. If the signal strength is low, further link quality metrics may be monitored. If it is determined that health of the Wi-Fi link is poor based on monitoring signal strength and other link quality metrics, roaming to a different Wi-Fi network may be performed, the Wi-Fi link may be disconnected, and/or an application processor of the wireless device may be woken.

    Abstract translation: Wi-Fi通过无线设备链接健康状况监控。 可以监视Wi-Fi链路的信号强度（例如，RSSI）。 如果信号强度较低，则可能会监控进一步的链路质量度量。 如果基于监视信号强度和其他链路质量度量确定Wi-Fi链路的健康状况不佳，则可以执行漫游到不同的Wi-Fi网络，Wi-Fi链路可能被断开，和/或 可以唤醒无线设备的应用处理器。

    Synchronization requests to reduce power consumption
    70.
    发明授权
    Synchronization requests to reduce power consumption 有权
    同步请求以降低功耗

    公开(公告)号：US09572120B2

    公开(公告)日：2017-02-14

    申请号：US13689494

    申请日：2012-11-29

    Applicant: Apple Inc.

    Inventor： Kapil Chhabra ,  Veerendra M. Boodannavar

    IPC: H04W56/00

    CPC classification number: H04W56/001 ,  H04W56/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

    Abstract: An electronic device is described. In order to facilitate the communication of synchronization information with another electronic device in a wireless network, the electronic device provides a request for the synchronization information to the other electronic device at a time other than a predefined synchronization transmission time of the other electronic device. Then, the electronic device receives the synchronization information from the other electronic device in response to the request. In this way, the probability that the synchronization information is successfully communicated is increased, and the amount of time the electronic device is in an active mode is reduced, thereby reducing power consumption.

    Abstract translation: 描述电子设备。 为了便于与无线网络中的其他电子设备的同步信息的通信，电子设备在其他电子设备的预定的同步发送时间以外的时间向其他电子设备提供对同步信息的请求。 然后，电子设备响应于该请求从其他电子设备接收同步信息。 以这种方式，同步信息成功通信的概率增加，并且电子设备处于活动模式的时间量减少，从而降低功耗。

Patent Agency Ranking