Method and system for analog and digital RF receiver interface
    1.
    发明授权
    Method and system for analog and digital RF receiver interface 有权
    模拟和数字射频接收机接口的方法和系统

    公开(公告)号:US08060050B2

    公开(公告)日:2011-11-15

    申请号:US10926763

    申请日:2004-08-26

    IPC分类号: H04B1/16

    CPC分类号: H04L27/38

    摘要: In a wireless device, a method and system for a baseband receiver interface including analog and digital components are provided. An analog or a digital interface may be selected for a I/Q data signal received from a front-end receiver. The analog interface may be a conventional RF or a VLIF interface. The I/Q data signal may be digitized when received from the analog interface and saturation detection may be used during digitization of the I/Q data signal. When the analog interface is the VLIF interface, a derotator may be used to remove the VLIF frequency. The derotator may be based on a CORDIC algorithm. The I/Q data signal may be converted from serial to parallel format when received from the digital interface. The received I/Q data signal may be decimated before transferred to a baseband processor.

    摘要翻译: 在无线设备中,提供了包括模拟和数字组件的用于基带接收器接口的方法和系统。 可以为从前端接收机接收的I / Q数据信号选择模拟或数字接口。 模拟接口可以是传统的RF或VLIF接口。 当从模拟接口接收时,I / Q数据信号可以被数字化,并且在数字化I / Q数据信号期间可以使用饱和检测。 当模拟接口是VLIF接口时,可以使用解旋器去除VLIF频率。 解旋器可以基于CORDIC算法。 当从数字接口接收时,I / Q数据信号可以从串行转换为并行格式。 接收的I / Q数据信号可以在传送到基带处理器之前被抽取。

    Method and system for codec with polyringer
    2.
    发明授权
    Method and system for codec with polyringer 有权
    多音节编解码器的方法和系统

    公开(公告)号:US07653204B2

    公开(公告)日:2010-01-26

    申请号:US10926762

    申请日:2004-08-26

    IPC分类号: H04B1/00

    摘要: In an audio processing device, a method and system for improved CODEC with polyringer are provided. An audio CODEC may comprise an audio ADC, an audio DAC, and a sidetone generator. Data from an external microphone may be processed by an audio ADC and may be sent to a processor that may be adapted to perform digital signal processing operations. The audio DAC may receive from the processor digital audio and polyphonic ringer data and may process the digital audio and polyphonic ringer data through separate digital filters and digital interpolators. The audio DAC may add the processed digital audio and polyphonic ringer data before analog conversion. The audio DAC may perform analog conversion by utilizing a delta-sigma modulator, a current-based DAC, and a switched-capacitor filter. The converted data may be filtered with an RC filter and may be utilized to drive an external speaker or earpiece.

    摘要翻译: 在一种音频处理装置中,提供了一种用于改进具有多声道的CODER的方法和系统。 音频CODEC可以包括音频ADC,音频DAC和侧音发生器。 来自外部麦克风的数据可以由音频ADC处理,并且可以被发送到可适于执行数字信号处理操作的处理器。 音频DAC可以从处理器接收数字音频和复音振铃器数据,并且可以通过单独的数字滤波器和数字内插器处理数字音频和复音振铃器数据。 音频DAC可以在模拟转换之前添加经处理的数字音频和复音振铃器数据。 音频DAC可以通过利用Δ-Σ调制器,基于电流的DAC和开关电容滤波器来执行模拟转换。 转换的数据可以用RC滤波器滤波,并且可以用于驱动外部扬声器或听筒。

    Equalizer training method using re-encoded bits and known training sequences

    公开(公告)号:US20060198434A1

    公开(公告)日:2006-09-07

    申请号:US11271692

    申请日:2005-11-10

    IPC分类号: H03K5/159 H03H7/30 H04B1/10

    CPC分类号: H04L25/03171 H04L25/03133

    摘要: The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a second equalizer processing branch. The first equalizer processing branch is operable to be trained based upon known training sequences and equalize the received RF burst. This results in soft samples or decisions which in turn may be converted to data bits. The soft samples are processed with a de-interleaver and channel decoder, where the combination is operable to produce a decoded frame of data bits from the soft samples. A re-encoder may re-encode the decoded frame to produce re-encoded or at least partially re-encoded data bits. An interleaver then processes the at least partially re-encoded data bits to produce and at least partially re-encoded burst. The second equalizer processing branch uses the at least partially re-encoded data bits to train linear equalizer(s) within-the second equalizer processing branch. A buffer may initially store the received RF burst(s), which are retrieved and equalized by the second equalizer processing branch once the linear equalizer(s) are trained. This results in alternate soft samples or decisions which in turn may be converted to alternate data bits. The alternate soft samples are processed with the de-interleaver and channel decoder, where the combination is operable to produce an alternate decoded frame of data bits from the alternate soft samples. This allows interfering signals to be cancelled and more accurate processing of the received RF bursts to occur.

    Two-step searcher for cell discovery
    6.
    发明授权
    Two-step searcher for cell discovery 有权
    用于细胞发现的两步搜索器

    公开(公告)号:US09198149B2

    公开(公告)日:2015-11-24

    申请号:US13432320

    申请日:2012-03-28

    摘要: Disclosed are various embodiments involving a two-step searcher for cell discovery. Multiple scrambling codes associated with multiple neighboring cells are obtained. Slot timing is obtained for a received signal based at least in part on a detection of primary synchronization peak energy in the received signal. One of the scrambling codes for decoding the received signal is identified based at least in part on testing multiple scrambling code hypotheses in parallel during an accumulation time period of the received signal in response to obtaining the slot timing.

    摘要翻译: 公开了涉及用于细胞发现的两步搜索器的各种实施例。 获得与多个相邻小区相关联的多个扰码。 至少部分地基于对接收信号中的主同步峰值能量的检测,对于接收信号获得时隙定时。 至少部分地基于在接收到的信号的累积时间段期间响应于获得时隙定时来并行测试多个扰码假设来识别用于解码接收信号的扰码之一。

    Method and system for decoding control data in GSM-based systems using inherent redundancy
    8.
    发明授权
    Method and system for decoding control data in GSM-based systems using inherent redundancy 有权
    用于使用固有冗余来解码基于GSM的系统中的控制数据的方法和系统

    公开(公告)号:US08924830B2

    公开(公告)日:2014-12-30

    申请号:US13277017

    申请日:2011-10-19

    摘要: A method and system for decoding control data in GSM-based systems using inherent redundancy and physical constraints are presented. At least one estimated GSM-based bit sequence may be selected by performing searches that start from trellis junctions determined by the decoding algorithm. The estimated bit sequences may be selected based on corresponding redundancy verification parameters. At least one physical constraint test may be performed on the selected estimated GSM-based bit sequences to select a decoded output GSM-based bit sequence. A multilayer decoding process may comprise a burst process and a frame process. Results from a first burst process may be utilized to generate a decoded GSM bit sequence in the frame process. The frame process may utilize redundancy information and physical constraints to improve the performance of a decoding algorithm.

    摘要翻译: 提出了一种使用固有冗余和物理约束对基于GSM的系统中的控制数据进行解码的方法和系统。 可以通过执行从由解码算法确定的网格结开始的搜索来选择至少一个估计的基于GSM的比特序列。 可以基于相应的冗余验证参数来选择估计的比特序列。 可以对所选择的估计的基于GSM的比特序列执行至少一个物理约束测试,以选择解码的输出基于GSM的比特序列。 多层解码过程可以包括突发过程和帧过程。 来自第一突发处理的结果可以用于在帧处理中生成解码的GSM比特序列。 帧处理可以利用冗余信息和物理约束来提高解码算法的性能。

    Method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process
    9.
    发明授权
    Method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process 有权
    使用突发过程解码单天线干扰消除(SAIC)和冗余处理适配的方法和系统

    公开(公告)号:US08582697B2

    公开(公告)日:2013-11-12

    申请号:US13614338

    申请日:2012-09-13

    IPC分类号: H04L27/06

    摘要: Aspects of a method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process are provided. A wireless receiver may decode bit sequences based on a first decoding algorithm that may utilize redundancy in the data and that may impose physical constraints. The receiver may also decode a received bit sequence based on a second decoding algorithm that utilizes SAIC. Received data may be processed in a burst process portion in either decoding algorithm. Burst processed data from one of the decoding algorithms may be selected based on signal-to-noise ratio and/or received signal level measurements. The selected burst processed data may be communicated to a frame processing portion of the corresponding decoding algorithm.

    摘要翻译: 提供了使用突发过程解码单天线干扰消除(SAIC)和冗余处理适配的方法和系统的方面。 无线接收机可以基于可以利用数据中的冗余并且可能施加物理约束的第一解码算法对比特序列进行解码。 接收机还可以基于利用SAIC的第二解码算法对接收到的比特序列进行解码。 可以在解码算法中的突发处理部分中处理接收的数据。 可以基于信噪比和/或接收信号电平测量来选择来自解码算法之一的突发处理数据。 所选择的突发处理数据可以被传送到对应的解码算法的帧处理部分。

    Method and System for Decoding Single Antenna Interference Cancellation (SAIC) and Redundancy Processing Adaptation Using Burst Process
    10.
    发明申请
    Method and System for Decoding Single Antenna Interference Cancellation (SAIC) and Redundancy Processing Adaptation Using Burst Process 有权
    使用突发过程解码单天线干扰消除(SAIC)和冗余处理适配的方法和系统

    公开(公告)号:US20130010901A1

    公开(公告)日:2013-01-10

    申请号:US13614338

    申请日:2012-09-13

    IPC分类号: H04L27/06

    摘要: Aspects of a method and system for decoding single antenna interference cancellation (SAIC) and redundancy processing adaptation using burst process are provided. A wireless receiver may decode bit sequences based on a first decoding algorithm that may utilize redundancy in the data and that may impose physical constraints. The receiver may also decode a received bit sequence based on a second decoding algorithm that utilizes SAIC. Received data may be processed in a burst process portion in either decoding algorithm. Burst processed data from one of the decoding algorithms may be selected based on signal-to-noise ratio and/or received signal level measurements. The selected burst processed data may be communicated to a frame processing portion of the corresponding decoding algorithm.

    摘要翻译: 提供了使用突发过程解码单天线干扰消除(SAIC)和冗余处理适配的方法和系统的方面。 无线接收机可以基于可以利用数据中的冗余并且可能施加物理约束的第一解码算法对比特序列进行解码。 接收机还可以基于利用SAIC的第二解码算法对接收到的比特序列进行解码。 可以在解码算法中的突发处理部分中处理接收的数据。 可以基于信噪比和/或接收信号电平测量来选择来自解码算法之一的突发处理数据。 所选择的突发处理数据可以被传送到对应的解码算法的帧处理部分。