利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

80 条记录 (耗时 0.024 秒)

    Combining Multiple Data Streams at a Receiver for QoS Balance in Asymmetric Communications
    51.
    发明申请
    Combining Multiple Data Streams at a Receiver for QoS Balance in Asymmetric Communications 审中-公开

    公开(公告)号：US20180287943A1

    公开(公告)日：2018-10-04

    申请号：US15476917

    申请日：2017-03-31

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan

    IPC分类号： H04L12/801 ,  G06F17/30 ,  G06F7/14 ,  G06F9/50 ,  G06F15/173 ,  H04N21/2383 ,  G06F9/38

    摘要： A receiver for combining multiple data streams at a destination device, where at least one of the multiple data streams may be a redundant data stream sent intermittently to a destination device. The redundant data stream may be sent intermittently depending on the availability of resources available to a source device. Based on monitoring of quality of service (QoS) parameters of an original data stream on the uplink, a base station functioning as an auxiliary receiver may be intermittently activated to intercept the data stream as a redundant data stream. The auxiliary receiver may then send the redundant data stream to the destination device to it QoS for the original data stream. The receiver may receive the data stream alone, or receive both of the redundant second data stream and the original data stream simultaneously, on an intermittent basis to improve QoS for the original data stream.

    Multiplexed unequal error protection for wireless networks
    52.
    发明授权
    Multiplexed unequal error protection for wireless networks 有权

    公开(公告)号：US10057910B2

    公开(公告)日：2018-08-21

    申请号：US15041491

    申请日：2016-02-11

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan ,  Aaron Cunningham

    IPC分类号： H04J1/00 ,  H04W72/10 ,  H04W72/04 ,  H04L5/00

    CPC分类号： H04W72/10 ,  H04L1/0033 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L2001/0098 ,  H04W72/0453

    摘要： Multiplexed unequal error protection for wireless networks is disclosed. A device may determine reliability associated with a first subcarrier of a channel including the first subcarrier and at least one second subcarrier. The reliability of the first subcarrier may be determined based on the position of the first subcarrier relative to each at least one second subcarrier. High priority data may be assigned to the first subcarrier for transmission if the first subcarrier is determined to have a higher reliability than the at least one second subcarrier. For example, the channel may be an orthogonal frequency division multiplexed (OFDM) channel and higher reliability may be associated with a first subcarrier that is in a middle position of the plurality of subcarriers within the OFDM channel. In another example, higher reliability may be associated with a first OFDM subcarrier that is adjacent to an unused OFDM channel bandwidth.

    USE OF ERROR INFORMATION TO GENERATE ENCRYPTION KEYS
    55.
    发明申请
    USE OF ERROR INFORMATION TO GENERATE ENCRYPTION KEYS 审中-公开

    公开(公告)号：US20180131510A1

    公开(公告)日：2018-05-10

    申请号：US15344017

    申请日：2016-11-04

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan

    IPC分类号： H04L9/08

    CPC分类号： H04L9/0861 ,  H04L9/0838 ,  H04L2209/34

    摘要： The embodiments provide cryptography keys for communicating devices that are based on information known only to the devices. Each device determines the information without communicating key information related to the key with the other. In an implementation, a first device sends a first signal to a second device, the second device loops back the first signal to the first device as a second signal, and the first device generates a first key based on error information from the second signal. Also, the second device sends a third signal to the first device, the first device loops back the third signal to the first device as a fourth signal, and the second device generates a second key based on error information from the fourth signal. The first device and second device then encrypt and decrypt communications between the first device and second device using the first key and second key.

    RANDOM PASSWORD FORCED FAILURE
    57.
    发明申请
    RANDOM PASSWORD FORCED FAILURE 有权

    公开(公告)号：US20180077570A1

    公开(公告)日：2018-03-15

    申请号：US15265187

    申请日：2016-09-14

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan

    IPC分类号： H04W12/06 ,  H04L29/06 ,  H04M1/725

    CPC分类号： H04W12/06 ,  G06F21/316 ,  H04L63/083 ,  H04M1/72577 ,  H04W12/12

    摘要： A forced failure mode may be activated if a predetermined number of incorrect passwords are received at an apparatus. In forced failure mode, the apparatus determines if a forced failure is to be performed in response to a received password. If a forced failure is to be performed, an access failure is forced. When subsequent passwords are received the determine operation is repeated. When it is determined that a forced failure is not to be performed in response to a password entry, access may be granted if the password is correct, or denied if the password is incorrect. The apparatus may then leave forced failure mode or repeat forced failure mode. The apparatus may be configured in a mobile device and the access attempted may be unlocking of the device. The apparatus may also be configured in a network server and the access attempted may be network access.

    SPECTRUM PRE-SHAPING IN VIDEO
    59.
    发明申请
    SPECTRUM PRE-SHAPING IN VIDEO 有权

    公开(公告)号：US20170280097A1

    公开(公告)日：2017-09-28

    申请号：US15083119

    申请日：2016-03-28

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan ,  Bill Verthein

    IPC分类号： H04N7/035

    CPC分类号： H04N7/035 ,  G06T1/0028 ,  G06T2201/0051

    摘要： Information bits may be superimposed onto a transmitted image while reducing or minimizing the effects of the superimposed information bits on the transmitted image signal's frequency spectrum or image quality. A placement of superimposed information bits onto pixels of an image signal to be transmitted may be determined by testing a placement functions to determine whether the spectrum and/or image quality of the image signal with the superimposed information bits placed according to a placement function meets system criteria. Successive placement functions may he tested until an acceptable placement function is found. The information bits may be superimposed onto complete pixels or the information bits may be superimposed onto one or more least significant bits (LSBs) of each of the selected pixels. A transmitter may transmit superimposition information associated with a transmitted image to a receiver. A receiver may use the superimposition information to extract the information bits.

    RESTRICTED FREQUENCY BAND INTERFERENCE CANCELLATION
    60.
    发明申请
    RESTRICTED FREQUENCY BAND INTERFERENCE CANCELLATION 审中-公开

    公开(公告)号：US20170245284A1

    公开(公告)日：2017-08-24

    申请号：US15050272

    申请日：2016-02-22

    申请人： Microsoft Technology Licensing, LLC

    发明人： Amer Hassan ,  Jeffrey Yan ,  Todd Haugen

    IPC分类号： H04W72/08

    摘要： A method and apparatus is disclosed by which a device in a wireless network may determine and reduce interference when using channels in restricted frequency bands and when other networks may be transmitting in the same restricted frequency. The wireless network may be a Wi-Fi system utilizing channels/frequencies in the television white space. Receivers, such as a client device and access point (AP), may determine information on one or more interfering signals and utilize the information to reduce or cancel the interference caused by the interfering signals generated by a second network. The information may be parameters or information on the structure of the interfering signal, and may be determined by retrieving stored cache information, receiving information on a beacon signal or sampling an interfering signal. The interference cancellation may be performed by joint demodulation or parallel interference cancellation.