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    • 1. 发明授权
    • Saturation detector for an ADC
    • ADC的饱和度检测器
    • US07675443B1
    • 2010-03-09
    • US12145978
    • 2008-06-25
    • Soner Ozgur
    • Soner Ozgur
    • H03M1/00
    • H03M3/362H03M3/418H03M3/454H03M3/456
    • A method for detecting saturation in a cascaded ΔΣ ADC can include receiving an output of the cascaded ΔΣ ADC, determining a magnitude of the output, and squaring the magnitude. The squared magnitude can be added to a feedback signal, wherein the sum represents a saturation signal. The saturation signal can be filtered and then amplified, wherein the amplified, filtered saturation signal is the feedback signal. The saturation signal can then be compared to a threshold to determine whether the cascaded ΔΣ ADC is in saturation.
    • 用于检测级联&Dgr;&Sgr中的饱和度的方法 ADC可以包括接收级联&Dgr& Sgr的输出; ADC,确定输出的幅度和平方的幅度。 可以将平方幅度加到反馈信号中,其中和表示饱和信号。 饱和信号可以被滤波然后被放大,其中放大的滤波饱和信号是反馈信号。 然后将饱和信号与阈值进行比较,以确定是否级联&Dgr;&Sgr; ADC处于饱和状态。
    • 2. 发明授权
    • Timing tracker for DPSK receiver
    • DPSK接收机定时跟踪器
    • US08295404B1
    • 2012-10-23
    • US12122013
    • 2008-05-16
    • Paul J. HustedSoner Ozgur
    • Paul J. HustedSoner Ozgur
    • H03D3/22
    • H04L27/2071H04L27/2334H04L27/2335H04L27/2338H04L2027/0069
    • One embodiment of a DPSK receiver includes an ADC, a down-sampler, and a timing tracker. The ADC samples a received DPSK signal providing sub-samples of a digital signal. The timing tracker examines differences between amplitudes of currently selected sub-samples and sub-samples before and after the currently selected sub-samples. The differences may indicate a timing adjustment may be made to the digital signal. The timing tracker may change the timing of the digital signal by modifying the configuration of the down-sampler. Additionally, the timing tracker may also correct phase errors introduced by configuration changes of the down-sampler.
    • DPSK接收机的一个实施例包括ADC,下采样器和定时跟踪器。 ADC对接收的DPSK信号进行采样,提供数字信号的子样本。 定时跟踪器检查当前选择的子样本之前和之后当前选择的子样本和子样本的幅度之间的差异。 差异可以指示可以对数字信号进行定时调整。 定时跟踪器可以通过修改下采样器的配置来改变数字信号的定时。 此外,定时跟踪器还可以校正由下采样器的配置变化引入的相位误差。
    • 3. 发明授权
    • Wireless device using a shared gain stage for simultaneous reception of multiple protocols
    • 使用共享增益级的无线设备同时接收多个协议
    • US08155612B1
    • 2012-04-10
    • US12323338
    • 2008-11-25
    • Paul J. HustedSrenik MehtaSoner Ozgur
    • Paul J. HustedSrenik MehtaSoner Ozgur
    • H04B1/06
    • H04B1/406
    • A wireless device that can process signals according to multiple wireless protocols simultaneously and without signal loss. The wireless device may comprise an antenna and first and second wireless protocol circuitry. The first wireless protocol circuitry comprises a shared gain element that amplifies signals that are processed by each of the first and second wireless protocol circuitry. Since the third signals are amplified by the shared gain element prior to being split out to the respective protocol circuitry, the first and second portions of the amplified third signals do not have significant signal loss relative to the third signals provided by the antenna. Thus the wireless device can receive and process wireless signals according to both the first and second protocols simultaneously without any significant signal losses due to splitting of the receive signal.
    • 一种无线设备,可以同时处理多个无线协议信号,无信号丢失。 无线设备可以包括天线和第一和第二无线协议电路。 第一无线协议电路包括共享增益元件,其放大由第一和第二无线协议电路中的每一个处理的信号。 由于第三信号在被分配到相应协议电路之前被共享增益元件放大,所以放大的第三信号的第一和第二部分相对于由天线提供的第三信号不具有显着的信号损耗。 因此,无线设备可以同时接收和处理根据第一和第二协议的无线信号,而不会由于接收信号的分离而导致任何显着的信号损失。
    • 4. 发明申请
    • SYNTHESIZER AND MODULATOR FOR A WIRELESS TRANSCEIVER
    • 无线收发器的合成器和调制器
    • US20090311972A1
    • 2009-12-17
    • US12172374
    • 2008-07-14
    • Paul J. HustedSoner OzgurXiaoru Zhang
    • Paul J. HustedSoner OzgurXiaoru Zhang
    • H04B1/40H03C5/00
    • H03C5/00H04B2001/0491
    • A transceiver including a transmit modulator and a receiver. The modulator may accept a channel selection input, a first modulation input, a second modulation input, and an amplitude input. During transmit time slots, the modulator may generate a modulated output having a carrier frequency selected by the channel selection input. The carrier frequency may be frequency modulated by the first modulation inputs, phase modulated by the second modulation input, and amplitude modulated by the amplitude input. During receive time slots, the modulator may generate a carrier frequency selected by the channel selection input and offset by the first modulation input. The modulator may alternate between providing modulated transmit signals during transmit time slots and providing a local oscillator for the receiver during receive time slots.
    • 包括发射调制器和接收机的收发器。 调制器可以接受信道选择输入,第一调制输入,第二调制输入和幅度输入。 在发送时隙期间,调制器可以生成具有由频道选择输入选择的载波频率的调制输出。 载波频率可以由第一调制输入进行频率调制,由第二调制输入进行相位调制,并由振幅输入进行幅度调制。 在接收时隙期间,调制器可以产生由信道选择输入选择的载波频率,并由第一调制输入偏移。 调制器可以在发送时隙期间在提供调制的发送信号之间交替,并且在接收时隙期间为接收机提供本地振荡器。
    • 5. 发明授权
    • Wireless communication sharing in a common communication medium based on voice traffic prediction
    • 基于语音流量预测的公共通信媒体中的无线通信共享
    • US08520624B2
    • 2013-08-27
    • US13269778
    • 2011-10-10
    • Paul J. HustedSoner Ozgur
    • Paul J. HustedSoner Ozgur
    • H04W4/00
    • H04W4/18
    • Performing wireless communication using first and second wireless communication protocols. The first and second wireless communication protocols may operate in a common communication medium. The wireless communication may be performed using the protocols over the common communication medium, e.g., in a time sharing fashion. Properties of voice traffic on current frames of the second wireless communication protocol may be measured. The method may further include predicting whether one or more subsequent frames of the second wireless communication protocol will have voice traffic. If the prediction indicates that the one or more subsequent frames of the second wireless communication protocol will not have voice traffic data may be transmitted using the first wireless communication protocol on the common communication medium during a subsequent second wireless communication protocol time slot.
    • 使用第一和第二无线通信协议执行无线通信。 第一和第二无线通信协议可以在公共通信介质中操作。 无线通信可以使用公共通信介质上的协议来执行,例如以分时的方式。 可以测量第二无线通信协议的当前帧上的语音流量的属性。 该方法还可以包括预测第二无线通信协议中的一个或多个后续帧是否具有话音业务。 如果预测指示第二无线通信协议的一个或多个后续帧不具有语音业务数据,则可以在随后的第二无线通信协议时隙期间使用公共通信介质上的第一无线通信协议来发送。
    • 6. 发明授权
    • Symbol error detection for bluetooth basic data rate packets
    • 蓝牙基本数据速率数据包的符号错误检测
    • US08401121B1
    • 2013-03-19
    • US12779208
    • 2010-05-13
    • Soner Ozgur
    • Soner Ozgur
    • H03D3/00
    • H04L27/144H04L25/067
    • A symbol error detector can be configured to detect symbol errors of GFSK modulated portions of a Bluetooth packet without relying solely on a CRC error detection mechanism. The symbol error detector can operate on frequency error signals that are a difference between a frequency associated with a current symbol and predetermined frequency outputs from a bank of filters matched to a frequency response of the Bluetooth receiver for predefined combinations of three consecutive symbols (i.e., an estimated previously decoded symbol, an estimated current symbol, and an estimated subsequent symbol). The frequency error signals can be compared against a threshold and against each other to determine a potential unreliability in decoding the current symbol and to determine whether to generate a symbol error notification. The frequency error signals being within a threshold of each other can indicate potential unreliability in decoding the current symbol.
    • 符号误差检测器可被配置为检测蓝牙分组的GFSK调制部分的符号错误,而不依赖于CRC错误检测机制。 符号误差检测器可以对频率误差信号进行操作,频率误差信号是与当前符号相关联的频率与来自与蓝牙接收机的频率响应匹配的滤波器组的预定频率输出之间的差值,用于三个连续符号的预定义组合(即, 估计的先前解码的符号,估计的当前符号和估计的后续符号)。 可以将频率误差信号与阈值进行比较并且相互对照以确定解码当前符号的潜在不可靠性并确定是否生成符号错误通知。 频率误差信号在彼此的阈值之内可以指示在解码当前符号时的潜在的不可靠性。
    • 7. 发明授权
    • Dynamic power reduction in a wireless receiver
    • 无线接收机中的动态功率降低
    • US08279974B1
    • 2012-10-02
    • US12264842
    • 2008-11-04
    • Paul J. HustedSoner Ozgur
    • Paul J. HustedSoner Ozgur
    • H03K9/00
    • H04L27/38H04L25/06H04L27/0008H04L27/0012
    • Various techniques for dynamically reducing power usage in a wireless receiver are disclosed. A receiver unit receives a wireless signal over a channel and processes the wireless signal, including dynamically changing one or more of the settings of the receiver unit to control its power usage. These setting are changed in response to one or more power setting values that are generated based on a first set of information that includes state information for the channel. The receiver unit may dynamically change a first setting that causes the bias current applied to an analog-to-digital converter to be changed. The channel state information may include information indicative of a received signal strength indication (RSSI), information indicative of a packet error rate (PER) for packets encoded on the wireless signal, and header error check (HEC) and/or cyclical redundancy check (CRC) errors for data packets encoded on the wireless signal.
    • 公开了用于动态地减少无线接收机中的功率使用的各种技术。 接收机单元通过信道接收无线信号并处理无线信号,包括动态地改变接收器单元的一个或多个设置以控制其功率使用。 响应于基于包括用于信道的状态信息的第一组信息生成的一个或多个功率设置值来改变这些设置。 接收器单元可以动态地改变导致施加到模数转换器的偏置电流被改变的第一设置。 信道状态信息可以包括指示接收信号强度指示(RSSI)的信息,指示在无线信号上编码的分组的分组差错率(PER)的信息,以及报头错误检查(HEC)和/或循环冗余校验 CRC)对无线信号编码的数据包的错误。
    • 8. 发明授权
    • Synthesizer and modulator for a wireless transceiver
    • 无线收发器的合成器和调制器
    • US08170494B2
    • 2012-05-01
    • US12172374
    • 2008-07-14
    • Paul J. HustedSoner OzgurXiaoru Zhang
    • Paul J. HustedSoner OzgurXiaoru Zhang
    • H04B1/38
    • H03C5/00H04B2001/0491
    • A transceiver including a transmit modulator and a receiver. The modulator may accept a channel selection input, a first modulation input, a second modulation input, and an amplitude input. During transmit time slots, the modulator may generate a modulated output having a carrier frequency selected by the channel selection input. The carrier frequency may be frequency modulated by the first modulation inputs, phase modulated by the second modulation input, and amplitude modulated by the amplitude input. During receive time slots, the modulator may generate a carrier frequency selected by the channel selection input and offset by the first modulation input. The modulator may alternate between providing modulated transmit signals during transmit time slots and providing a local oscillator for the receiver during receive time slots.
    • 包括发射调制器和接收机的收发器。 调制器可以接受信道选择输入,第一调制输入,第二调制输入和幅度输入。 在发送时隙期间,调制器可以生成具有由频道选择输入选择的载波频率的调制输出。 载波频率可以由第一调制输入进行频率调制,由第二调制输入进行相位调制,并由振幅输入进行幅度调制。 在接收时隙期间,调制器可以产生由信道选择输入选择的载波频率,并由第一调制输入偏移。 调制器可以在发送时隙期间在提供调制的发送信号之间交替,并且在接收时隙期间为接收机提供本地振荡器。
    • 9. 发明授权
    • Hybrid zero-IF receiver
    • 混合零中频接收机
    • US08144811B2
    • 2012-03-27
    • US12016955
    • 2008-01-18
    • Paul J. HustedShahram Abdollahi-AlibeikDavid J. WeberSoner Ozgur
    • Paul J. HustedShahram Abdollahi-AlibeikDavid J. WeberSoner Ozgur
    • H03K9/00
    • H04B1/30
    • An apparatus for processing a Bluetooth signal advantageously mixes down a received RF signal to an IF signal wherein one band-edge of the spectrum of the IF signal may be approximately 0 Hz. In one embodiment, the IF signal may be digitized, decimated and filtered before being processed into a baseband signal. The baseband signal may be processed by a cordic (COordinate Rotation DIgital Computer) processor to transform the baseband signal from rectangular to polar coordinates. A phase signal from the cordic processor may be used to determine transmitted Bluetooth data symbols. The apparatus may advantageously use less area than traditional Bluetooth receivers.
    • 用于处理蓝牙信号的装置有利地将所接收的RF信号与IF信号相混合,其中IF信号的频谱的一个带边可以为大约0Hz。 在一个实施例中,IF信号可以在被处理成基带信号之前被数字化,抽取和滤波。 基带信号可以由Cordic(Coordinate Rotation DIgital Computer)处理器处理,以将基带信号从矩形变换为极坐标。 可以使用来自Cordic处理器的相位信号来确定所发送的蓝牙数据符号。 该装置可以有利地使用比传统蓝牙接收机更少的面积。
    • 10. 发明授权
    • Wireless communication sharing in a common communication medium
    • 无线通信共享在通用媒体中
    • US08107427B1
    • 2012-01-31
    • US12193300
    • 2008-08-18
    • Paul J. HustedSoner Ozgur
    • Paul J. HustedSoner Ozgur
    • H04W4/00
    • H04W4/18
    • Performing wireless communication using first and second wireless communication protocols. The first and second wireless communication protocols may operate in a common communication medium. The wireless communication may be performed using the protocols over the common communication medium, e.g., in a time sharing fashion. Properties of voice traffic on current frames of the second wireless communication protocol may be measured. The method may further include predicting whether one or more subsequent frames of the second wireless communication protocol will have voice traffic. If the prediction indicates that the one or more subsequent frames of the second wireless communication protocol will not have voice traffic data may be transmitted using the first wireless communication protocol on the common communication medium during a subsequent second wireless communication protocol time slot.
    • 使用第一和第二无线通信协议执行无线通信。 第一和第二无线通信协议可以在公共通信介质中操作。 无线通信可以使用公共通信介质上的协议来执行,例如以分时方式。 可以测量第二无线通信协议的当前帧上的语音流量的属性。 该方法还可以包括预测第二无线通信协议中的一个或多个后续帧是否具有话音业务。 如果预测指示第二无线通信协议的一个或多个后续帧不具有语音业务数据,则可以在随后的第二无线通信协议时隙期间使用公共通信介质上的第一无线通信协议来发送。