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    • 1. 发明授权
    • Partitioned bluetooth system
    • 分区蓝牙系统
    • US09195628B2
    • 2015-11-24
    • US12192160
    • 2008-08-15
    • Johan OestergrenMichael Lewis
    • Johan OestergrenMichael Lewis
    • H04W84/18G06F15/163
    • G06F15/163H04W84/18
    • A system includes a first memory, a second memory, a host processor, and a second processor. The first memory is configured to store first layers of a Bluetooth protocol stack including at least a portion of a link manager layer. The second memory is configured to store second layers of the Bluetooth protocol stack. The second layers have higher real-time requirements than the first layers. The host processor is coupled to the first memory. The host processor is configured to execute the first layers. The second processor is coupled to the second memory. The second processor is configured to execute the second layers.
    • 系统包括第一存储器,第二存储器,主处理器和第二处理器。 第一存储器被配置为存储包括链路管理器层的至少一部分的蓝牙协议栈的第一层。 第二存储器被配置为存储蓝牙协议栈的第二层。 第二层具有比第一层更高的实时要求。 主处理器耦合到第一存储器。 主机处理器被配置为执行第一层。 第二处理器耦合到第二存储器。 第二处理器被配置为执行第二层。
    • 5. 发明授权
    • Polar modulator with signed amplitude reducing phase transitions
    • 具有带振幅减小相变的极性调制器
    • US07945223B2
    • 2011-05-17
    • US11675002
    • 2007-02-14
    • Michael Lewis
    • Michael Lewis
    • H04B1/02
    • H04L27/361
    • A polar modulator including a signal converter configured to provide a phase signal and an amplitude signal based on at least one received signal is disclosed. A digital-to-analog converter is coupled to the signal converter, the digital-to-analog converter configured to receive an augmented signal, wherein a polarity of the augmented signal is selected to minimize an absolute phase change for sequential signals. A signal mixer is coupled to the digital-to-analog converter to receive an analog signal generated from the augmented signal.
    • 公开了一种极化调制器,其包括被配置为基于至少一个接收信号提供相位信号和振幅信号的信号转换器。 数模转换器耦合到信号转换器,数模转换器被配置为接收增强信号,其中增强信号的极性被选择以最小化顺序信号的绝对相位变化。 信号混频器耦合到数模转换器以接收从增强信号产生的模拟信号。
    • 6. 发明授权
    • Drop-out voltage monitoring method and apparatus
    • 掉电电压监测方法及装置
    • US07911191B2
    • 2011-03-22
    • US11464372
    • 2006-08-14
    • Michael Lewis
    • Michael Lewis
    • G05F1/44G05F1/56
    • G05F1/46
    • A voltage regulator has a device for regulating an output voltage, having an input to receive an input voltage and an output to deliver an output voltage of a constant level, and a device for correcting a drop-out voltage violation, coupled to the device for regulating, to determine an occurrence of a drop-out voltage violation and to cause the device for regulating to change the level of the output voltage upon detection of the drop-out voltage violation. A method for regulating an output voltage has the steps of receiving an input voltage, generating and outputting a regulated output voltage of a constant level, monitoring occurrence of a drop-out voltage violation, and causing a change of the level of the output voltage upon detection of the drop-out voltage violation.
    • 电压调节器具有用于调节输出电压的装置,具有用于接收输入电压的输入和用于输出恒定电平的输出电压的输出,以及用于校正退出电压违反的装置,耦合到该装置,用于 调节,以确定发生掉电电压违规,并且在检测到掉电电压冲突时使该装置调节以改变输出电压的电平。 一种用于调节输出电压的方法具有接收输入电压,产生并输出恒定电平的稳定输出电压的步骤,监测发生掉电电压的发生,并且使输出电压的电平变化 检测到掉电电压违规。
    • 7. 发明授权
    • Detection apparatus and method
    • 检测装置及方法
    • US07813414B2
    • 2010-10-12
    • US10875271
    • 2004-06-24
    • Michael Lewis
    • Michael Lewis
    • H04B1/38
    • H04W74/00H04W24/00H04W84/12
    • A transceiver apparatus and a method comprise detecting means for detecting messages, wherein the detecting means comprises a first detector arranged to operate over a first detection period and which output indicates the beginning of a message with a first detection probability, and a second detector arranged to operate over a second detection period and which output indicates the detection of the beginning of a message with a second detection probability. The second detection probability is higher than the first detection probability and the transceiver apparatus is arranged to receive the message if the second detector indicates detection of the beginning of a message.
    • 收发器装置和方法包括检测消息的检测装置,其中检测装置包括第一检测器,其布置成在第一检测周期上操作,并且哪个输出指示具有第一检测概率的消息的开始,以及第二检测器, 在第二检测周期内操作,并且哪个输出指示以第二检测概率检测到消息的开始。 第二检测概率高于第一检测概率,并且如果第二检测器指示检测到消息的开始,则收发器设备被布置为接收消息。
    • 9. 发明授权
    • System operable to transmit and receive messages
    • 用于发送和接收消息的系统
    • US07619980B2
    • 2009-11-17
    • US10890709
    • 2004-07-14
    • Michael Lewis
    • Michael Lewis
    • G01R31/08H04L12/413
    • H04W74/085H04W84/12
    • A system, minimising transmission delays and avoiding loss of synchronisation, using a contention based multiple access protocol comprises n transceivers each comprising a detector for detecting the condition of the medium and connected to a controller for switching the transceiver from receiving to transmitting or vice versa. Each transceiver also comprises a to the controller connected backoff counter operable to decrement its count at the end of each time slot when performing a backoff procedure. A transceiver which wishes to transmit and is performing the backoff procedure for which the detector detects that the medium is busy, the controller freezes the backoff counter and if this medium busy condition is subsequently determined to be a false alarm the controller resumes the backoff counter at the beginning of the next time slot after rejection of the false alarm, using the time slot timings in force prior to the false alarm event.
    • 使用基于竞争的多址协议来最小化传输延迟并避免同步丢失的系统包括n个收发机,每个收发机包括检测器,用于检测介质的状态并连接到控制器,用于将收发器从接收切换到发送,反之亦然。 每个收发机还包括到控制器连接的退避计数器,可操作以在执行退避过程时在每个时隙结束时递减其计数。 希望发送并正在执行检测器检测到该介质正在占用的退避过程的收发器,控制器冻结退避计数器,并且如果该中等繁忙状态随后被确定为假警报,则控制器恢复退避计数器 在拒绝假警报后的下一个时间段的开始,使用在虚假警报事件之前有效的时隙定时。