Method for adjusting mobile communication activity based on voicing quality
    3.
    发明申请
    Method for adjusting mobile communication activity based on voicing quality 审中-公开
    基于发声质量调整移动通信活动的方法

    公开(公告)号:US20070129022A1

    公开(公告)日:2007-06-07

    申请号:US11292867

    申请日:2005-12-02

    IPC分类号: H04B1/38

    CPC分类号: G10L25/69

    摘要: A mobile communication device (100) includes a vocoder (104) for vocoding speech (500) received at the mobile communication device. The parameters output by the vocoder are used to generate a voicing quality metric (208). The voicing quality metric is used to provide feedback to the user of the mobile communication device by various feedback modalities including visual (114), audible (108), and tactile modalities (118) to indicate when the user should speak louder to overcome ambient noise. The voicing quality metric is also used by other communications equipment (304, 312) to decide if communication activity is needed.

    摘要翻译: 移动通信设备(100)包括用于在移动通信设备处接收的用于声音语音(500)的声码器(104)。 由声码器输出的参数用于产生声音质量度量(208)。 发音质量度量用于通过包括视觉(114),可听(108)和触觉模式(118)的各种反馈模式向移动通信设备的用户提供反馈,以指示用户何时更大声地克服环境噪声 。 其他通信设备(304,312)还使用发声质量度量来决定是否需要通信活动。

    Crypto-synchronization for secure communication
    4.
    发明申请
    Crypto-synchronization for secure communication 有权
    用于安全通信的加密同步

    公开(公告)号:US20060045136A1

    公开(公告)日:2006-03-02

    申请号:US10926830

    申请日:2004-08-26

    IPC分类号: H04L1/00

    摘要: An apparatus (213) and corresponding methods (FIG. 7) to facilitate maintaining crypto synchronization while processing communication signals in a communication unit includes a vocoder (215) configured to convert input audio band signals to vocoder output frames; a crypto processor (217) configured to encrypt the vocoder output frames to provide encrypted output frames; and a synchronizer (219) configured to substitute in a predetermined manner synchronization information corresponding to an encryption state of the crypto processor for a portion of the encrypted data in a portion of the encrypted output frames to provide resultant output synchronization frames suitable for synchronizing a decryption process at a target communication unit.

    摘要翻译: 在通信单元处理通信信号的同时,有助于保持加密同步的装置(213)和相应的方法(图7)包括配置成将输入音频信号转换为声码器输出帧的声码器(215) 密码处理器,被配置为加密所述声码器输出帧以提供加密的输出帧; 以及同步器(219),被配置为以预定方式替换与所述加密处理器的加密状态相对应的加密数据的一部分的加密输出帧的一部分的同步信息,以提供适合于同步解密的合成输出同步帧 在目标通信单元处理。

    Interference estimation and scaling for efficient metric storage and interference immunity
    5.
    发明申请
    Interference estimation and scaling for efficient metric storage and interference immunity 有权
    用于有效度量存储和抗干扰的干扰估计和缩放

    公开(公告)号:US20050037712A1

    公开(公告)日:2005-02-17

    申请号:US10640110

    申请日:2003-08-13

    IPC分类号: H04B17/00 H04B7/00

    CPC分类号: H04B17/345 H04B17/26

    摘要: A system, wireless device (402) and method receive a set of soft metrics (614) associated with a block of symbols during a predetermined time interval, use the set of soft metrics (614) to form an initial interference power estimate, form a moving-average estimate of interference power (616) corresponding to each predetermined time interval, and scale the set of soft metrics (614) according to the corresponding interference power estimate resulting in a set of scaled metrics (618). Then they limit the dynamic range of the set of scaled metrics (618), linearly quantize the limited metrics, and output the linearly quantized limited metrics (628) to a memory buffer. The size of the memory buffer containing the linearly quantized limited metrics (628) is smaller than the size of a memory buffer required to store the received soft metrics (614). The linearly quantized limited metrics (628) are then used as input to a decoder.

    摘要翻译: 系统,无线设备(402)和方法在预定时间间隔期间接收与符号块相关联的一组软度量(614),使用所述一组软度量(614)来形成初始干扰功率估计,形成 对每个预定时间间隔对应的干扰功率(616)的移动平均估计,以及根据导致一组缩放度量的对应的干扰功率估计(618)缩放软度量集合(614)。 然后,它们限制一组缩放度量(618)的动态范围,线性量化有限度量,并将线性量化的有限量度(628)输出到存储器缓冲器。 包含线性量化有限度量(628)的存储器缓冲器的大小小于存储所接收的软度量(614)所需的存储器缓冲器的大小。 线性量化的限制度量(628)然后被用作解码器的输入。

    Acknowledgment for a time division channel
    6.
    发明申请
    Acknowledgment for a time division channel 审中-公开
    确认时分频道

    公开(公告)号:US20060104333A1

    公开(公告)日:2006-05-18

    申请号:US10992156

    申请日:2004-11-18

    IPC分类号: H04B1/713

    CPC分类号: H04B1/713 H04W76/14

    摘要: A communication unit (101) and corresponding methods are arranged and constructed to detect acknowledgment messages as an Originator or respond with an acknowledgment message as a Target on a time division channel. The communication unit includes a transceiver (201) configured to support air interfaces (113, 115) with other communication (103, 105) units according to frequency hopping patterns and a controller (203) cooperatively controlling the transceiver to, for example, send a call setup message identifying a target communication unit and a pseudo-random frequency hopping pattern; and to determine whether an acknowledgment message from the target communication unit is present in a signal received according to the pseudo-random frequency hopping pattern.

    摘要翻译: 通信单元(101)和相应的方法被布置和构造为检测作为发起者的确认消息或者在时分信道上以确认消息作为目标进行响应。 通信单元包括:收发器(201),被配置为根据跳频图案与其他通信(103,105)单元支持空中接口(113,115);以及控制器(203),协作地控制收发器以例如发送 识别目标通信单元和伪随机跳频模式的呼叫建立消息; 并且根据伪随机跳频图案确定从目标通信单元确认的确认消息是否存在于接收的信号中。

    Method and system of reducing collisions in an asynchronous communication system
    7.
    发明申请
    Method and system of reducing collisions in an asynchronous communication system 有权
    减少异步通信系统中的冲突的方法和系统

    公开(公告)号:US20050207383A1

    公开(公告)日:2005-09-22

    申请号:US10803325

    申请日:2004-03-18

    CPC分类号: H04L12/56 H04W52/0229

    摘要: A method (60 or 70) and system of reducing collisions in an asynchronous communication system can include the steps at a transmitter (200) of generating (61) a set of known preamble waveforms and transmitting (64) at least one distinguishable preamble waveform based on an association with a call type and a receiver identifier. The method (70) can also include the steps at a receiver (300) of receiving (71) at least one preamble waveform among a set of different preamble waveforms which toggle between two symbol frequencies, the different preamble waveforms being distinguishable by at least having one among a different symbol frequency spacing and a different symbol toggling duty cycle. The method further includes the step of selecting (73) to decode a preamble waveform based on at least one among the different symbol frequency spacing and the different symbol toggling duty cycle.

    摘要翻译: 一种减少异步通信系统中的冲突的方法(60或70)和减少冲突的系统可以包括在发射机(200)处产生(61)一组已知前同步码波形的步骤,并发送(64)至少一个可区分前导波形 与呼叫类型和接收者标识符的关联。 方法(70)还可以包括在接收机(300)处的步骤,接收(71)在两个符号频率之间切换的不同前同步码波形的集合中的至少一个前导码波形,不同的前导波形可通过至少具有 一个在不同的符号频率间隔和不同的符号切换占空比。 该方法还包括以下步骤:基于不同符号频率间隔和不同符号切换占空比中的至少一个来选择(73)解码前导波形。