METHOD AND SYSTEM FOR RAPIDLY DETECTING THE PRESENCE OF INTERFERERS IN BLUETOOTH FREQUENCY HOPPING
    1.
    发明申请
    METHOD AND SYSTEM FOR RAPIDLY DETECTING THE PRESENCE OF INTERFERERS IN BLUETOOTH FREQUENCY HOPPING 审中-公开
    用于快速检测蓝牙频率干扰器中存在的方法和系统

    公开(公告)号:US20090022208A1

    公开(公告)日:2009-01-22

    申请号:US12017135

    申请日:2008-01-21

    IPC分类号: H04B1/00

    CPC分类号: H04B1/034

    摘要: Methods and systems for wireless communication are disclosed and may include sweeping a signal detection frequency one or more times across a plurality of steps in a frequency range. The measured signal strength at each step may be compared to a threshold, and a status may be stored, which may depend on the presence of a measured signal strength above threshold. The detection frequency may be swept utilizing a voltage controlled oscillator, which may be tuned via a control voltage and/or calibration capacitors. Steps may be skipped when a measured signal strength may be greater than the threshold, and may occur after multiple above threshold measurements. The steps may have variable frequency width, and the range may include the Bluetooth band from 2.40 GHz to 2.48 GHz. The frequency may be swept over a subset of the Bluetooth band, and may be swept on a periodic basis.

    摘要翻译: 公开了用于无线通信的方法和系统,并且可以包括在频率范围内的多个步骤中扫描信号检测频率一次或多次。 可以将每个步骤处的测量信号强度与阈值进行比较,并且可以存储状态,其可以取决于高于阈值的测量信号强度的存在。 可以利用压控振荡器来扫描检测频率,该压控振荡器可以经由控制电压和/或校准电容器进行调谐。 当测量的信号强度可能大于阈值时,可以跳过步骤,并且可以在多次超过阈值测量之后发生。 这些步骤可以具有可变的频率宽度,并且该范围可以包括从2.40GHz到2.48GHz的蓝牙频带。 频率可以扫过蓝牙频带的子集,并且可以周期性地扫描。

    METHOD AND SYSTEM FOR A CONTINUING SCAN IN A BLUETOOTH WIRELESS SYSTEM
    2.
    发明申请
    METHOD AND SYSTEM FOR A CONTINUING SCAN IN A BLUETOOTH WIRELESS SYSTEM 有权
    蓝牙无线系统连续扫描的方法与系统

    公开(公告)号:US20090124200A1

    公开(公告)日:2009-05-14

    申请号:US11939171

    申请日:2007-11-13

    IPC分类号: H04B7/00

    CPC分类号: H04W8/005 H04W16/14 H04W48/16

    摘要: Methods and systems for wireless communication are disclosed and may include controlling one or more scans of a received signal detection frequency across a frequency range and storing a magnitude of the received signal at each frequency where the magnitude exceeds a threshold level. A type of one or more signals in the received signal may be determined based on a bandwidth of the signals. A Bluetooth page/inquiry scan may be initiated if the determined type is a page/inquiry signal, and scans may be continued if the determined type may not be a page/inquiry signal. The scans may be repeated on a periodic basis and may be controlled utilizing a voltage controlled oscillator. Each of the scans may include a plurality of discrete frequency steps or a continuous frequency ramp. The controlling may include a start frequency, an end frequency and a frequency step size for the scans.

    摘要翻译: 公开了用于无线通信的方法和系统,并且可以包括控制跨越频率范围的接收信号检测频率的一次或多次扫描并且在幅度超过阈值水平的每个频率处存储接收信号的幅度。 可以基于信号的带宽来确定接收信号中的一种或多种信号的类型。 如果确定的类型是页面/查询信号,则可以启动蓝牙页面/查询扫描,并且如果所确定的类型可能不是页面/查询信号,则可以继续扫描。 可以周期性地重复扫描,并且可以利用压控振荡器来控制扫描。 每个扫描可以包括多个离散频率步长或连续频率斜坡。 控制可以包括扫描的起始频率,结束频率和频率步长。

    Method and system for a continuing scan in a bluetooth wireless system
    3.
    发明授权
    Method and system for a continuing scan in a bluetooth wireless system 有权
    在蓝牙无线系统中持续扫描的方法和系统

    公开(公告)号:US08457554B2

    公开(公告)日:2013-06-04

    申请号:US11939171

    申请日:2007-11-13

    IPC分类号: H04B7/00

    CPC分类号: H04W8/005 H04W16/14 H04W48/16

    摘要: Methods and systems for wireless communication are disclosed and may include controlling one or more scans of a received signal detection frequency across a frequency range and storing a magnitude of the received signal at each frequency where the magnitude exceeds a threshold level. A type of one or more signals in the received signal may be determined based on a bandwidth of the signals. A Bluetooth page/inquiry scan may be initiated if the determined type is a page/inquiry signal, and scans may be continued if the determined type may not be a page/inquiry signal. The scans may be repeated on a periodic basis and may be controlled utilizing a voltage controlled oscillator. Each of the scans may include a plurality of discrete frequency steps or a continuous frequency ramp. The controlling may include a start frequency, an end frequency and a frequency step size for the scans.

    摘要翻译: 公开了用于无线通信的方法和系统,并且可以包括控制跨越频率范围的接收信号检测频率的一次或多次扫描并且在幅度超过阈值水平的每个频率处存储接收信号的幅度。 可以基于信号的带宽来确定接收信号中的一种或多种信号的类型。 如果确定的类型是页面/查询信号,则可以启动蓝牙页面/查询扫描,并且如果所确定的类型可能不是页面/查询信号,则可以继续扫描。 可以周期性地重复扫描,并且可以利用压控振荡器来控制扫描。 每个扫描可以包括多个离散频率步长或连续频率斜坡。 控制可以包括扫描的起始频率,结束频率和频率步长。

    METHOD AND SYSTEM FOR A DUAL-MODE BLUETOOTH LOW ENERGY DEVICE
    4.
    发明申请
    METHOD AND SYSTEM FOR A DUAL-MODE BLUETOOTH LOW ENERGY DEVICE 有权
    双模蓝牙低能量器件的方法和系统

    公开(公告)号:US20110021142A1

    公开(公告)日:2011-01-27

    申请号:US12546621

    申请日:2009-08-24

    IPC分类号: H04B7/00

    摘要: A dual-mode BLE device identifies idle intervals within Bluetooth BR/EDR traffic communications. The identified idle intervals are used by the dual-mode BLE device to concurrently perform various BLE activities. For example, advertising packet transmissions, advertising packet scanning, connection setup, and/or data packet communication may be concurrently performed within identified idle intervals within the Bluetooth BR/EDR traffic communications. Packet transmission timing, advertising interval, scan window, and/or packet size are determined based on the identified idle intervals within the Bluetooth BR/EDR traffic communications. A scan window is adjusted based on timing of expected advertising transmissions and/or advertising interval(s) for saving power. BLE packets and Bluetooth BR/EDR packets may be detected in a single advertising channel. Maximal payload size is set based on the identified idle intervals within Bluetooth BR/EDR traffic communications. As a slave, the dual-mode BLE device updates connection parameters based on the identified idle intervals within Bluetooth BR/EDR traffic communications.

    摘要翻译: 双模式BLE设备识别蓝牙BR / EDR通信通信中的空闲间隔。 识别的空闲间隔由双模BLE设备用于同时执行各种BLE活动。 例如,广告分组传输,广告分组扫描,连接建立和/或数据分组通信可以在蓝牙BR / EDR业务通信内的标识的空闲间隔内同时执行。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来确定分组传输定时,广告间隔,扫描窗口和/或分组大小。 基于预期的广告发送的定时和/或用于节省功率的广告间隔来调整扫描窗口。 可以在单个广告信道中检测到BLE分组和蓝牙BR / EDR分组。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来设置最大有效载荷大小。 作为从设备,双模BLE设备基于蓝牙BR / EDR业务通信中识别的空闲间隔来更新连接参数。

    Method and system for a dual-mode bluetooth low energy device
    5.
    发明授权
    Method and system for a dual-mode bluetooth low energy device 有权
    双模蓝牙低能量器件的方法和系统

    公开(公告)号:US08737917B2

    公开(公告)日:2014-05-27

    申请号:US12546621

    申请日:2009-08-24

    IPC分类号: H04B7/00

    摘要: A dual-mode BLE device identifies idle intervals within Bluetooth BR/EDR traffic communications. The identified idle intervals are used by the dual-mode BLE device to concurrently perform various BLE activities. For example, advertising packet transmissions, advertising packet scanning, connection setup, and/or data packet communication may be concurrently performed within identified idle intervals within the Bluetooth BR/EDR traffic communications. Packet transmission timing, advertising interval, scan window, and/or packet size are determined based on the identified idle intervals within the Bluetooth BR/EDR traffic communications. A scan window is adjusted based on timing of expected advertising transmissions and/or advertising interval(s) for saving power. BLE packets and Bluetooth BR/EDR packets may be detected in a single advertising channel. Maximal payload size is set based on the identified idle intervals within Bluetooth BR/EDR traffic communications. As a slave, the dual-mode BLE device updates connection parameters based on the identified idle intervals within Bluetooth BR/EDR traffic communications.

    摘要翻译: 双模式BLE设备识别蓝牙BR / EDR通信通信中的空闲间隔。 识别的空闲间隔由双模BLE设备用于同时执行各种BLE活动。 例如,广告分组传输,广告分组扫描,连接建立和/或数据分组通信可以在蓝牙BR / EDR业务通信内的标识的空闲间隔内同时执行。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来确定分组传输定时,广告间隔,扫描窗口和/或分组大小。 基于预期的广告发送的定时和/或用于节省功率的广告间隔来调整扫描窗口。 可以在单个广告信道中检测到BLE分组和蓝牙BR / EDR分组。 基于蓝牙BR / EDR业务通信中识别的空闲间隔来设置最大有效载荷大小。 作为从设备,双模BLE设备基于蓝牙BR / EDR业务通信中识别的空闲间隔来更新连接参数。

    Frequency offset estimation scheme in scheduled based wireless system

    公开(公告)号:US08493907B2

    公开(公告)日:2013-07-23

    申请号:US13172075

    申请日:2011-06-29

    IPC分类号: H04B7/204

    摘要: A technique to provide frequency offset estimation for packets transmitted during a service period allocated strictly for designated source and destination devices. The destination device obtains coarse and fine frequency offset estimation from the short and long preambles. A residual frequency offset is tracked for the data blocks and combined with the coarse and fine frequency offset to obtain a total frequency offset to apply to the data blocks. The total frequency offset value at the end of the first packet is saved and, instead of again estimating the coarse and fine frequency offset values with the short and long preambles of the second packet, the saved total frequency offset value is used as the initialization value to add to the residual frequency offset in the second packet. The saved offset value at the end of each packet becomes the initialization value for the subsequent packet.

    METHOD AND SYSTEM FOR MULTI-STAGE DEVICE FILTERING IN A BLUETOOTH LOW ENERGY DEVICE
    9.
    发明申请
    METHOD AND SYSTEM FOR MULTI-STAGE DEVICE FILTERING IN A BLUETOOTH LOW ENERGY DEVICE 有权
    蓝牙低功耗器件中多级器件滤波的方法与系统

    公开(公告)号:US20110319020A1

    公开(公告)日:2011-12-29

    申请号:US12839957

    申请日:2010-07-20

    IPC分类号: H04B7/00

    摘要: A Bluetooth low energy (BLE) device receives advertising packets from an advertising BLE device. The BLE device filters the received advertising packets utilizing hardware to search for the advertiser. If the advertiser is not found by the hardware, the packet filtering continues utilizing firmware. Device identity information, comprising non-private and/or private device identities, of preferred BLE devices is partitioned to form a different white list for the hardware, firmware, and host, respectively, to concurrently support privacy and white listing. If the advertiser is found by the hardware, the hardware sends a response to the advertiser following a successful CRC check performed in the hardware. If the advertiser is found by the firmware, the device identity information of the advertiser is inserted in the white list for the hardware. The host may be awakened based on the device configuration and/or attribute type information of the received advertising packets.

    摘要翻译: 蓝牙低能量(BLE)设备从广告BLE设备接收广告分组。 BLE设备使用硬件来过滤所接收的广告包以搜索广告商。 如果硬件没有找到广告商,则包过滤继续利用固件。 将包含优选BLE设备的非私有和/或私有设备标识的设备身份信息分割成分别用于硬件,固件和主机的不同的白名单,以同时支持隐私和白名单。 如果通过硬件找到广告客户,则在硬件中执行成功的CRC校验后,硬件向广告商发送响应。 如果通过固件找到广告主,则广告商的设备身份信息被插入硬件的白名单中。 可以基于所接收的广告分组的设备配置和/或属性类型信息来唤醒主机。