Directly acquiring precision code GPS signals
    1.
    发明授权
    Directly acquiring precision code GPS signals 有权
    直接采集精密码GPS信号

    公开(公告)号:US06856282B2

    公开(公告)日:2005-02-15

    申请号:US10283677

    申请日:2002-10-29

    摘要: In general, the invention is directed to techniques for directly acquiring P-codes without first acquiring C/A-codes. For example, in one embodiment, a system comprises an assist server to track a P-code signal from a Global Positioning System (GPS) satellite and generate acquisition assistance information from the signal. The system further comprises a mobile unit to receive the acquisition assistance data from the assist server, and to acquire the P-code signal from the satellite based on the acquisition assistance data. The acquisition assistance data may include time-of-week data indicating an initial time offset into a P-code pseudorandom code sequence for the satellite. The mobile unit may include a reference generator to locally generate a reference pseudorandom code sequence based on the time-of-week data.

    摘要翻译: 一般来说,本发明涉及直接获取P代码而不首先获取C / A码的技术。 例如,在一个实施例中,系统包括辅助服务器以跟踪来自全球定位系统(GPS)卫星的P码信号,并从该信号产生采集辅助信息。 该系统还包括移动单元,用于从辅助服务器接收获取辅助数据,并且基于获取辅助数据从卫星获取P代码信号。 采集辅助数据可以包括指示针对卫星的P码伪随机码序列的初始时间偏移的周时数据。 移动单元可以包括参考生成器,以基于周时间数据本地生成参考伪随机码序列。

    Generating a masking signal on an electronic device
    2.
    发明授权
    Generating a masking signal on an electronic device 有权
    在电子设备上产生屏蔽信号

    公开(公告)号:US08972251B2

    公开(公告)日:2015-03-03

    申请号:US13155187

    申请日:2011-06-07

    IPC分类号: G10L21/02

    摘要: An electronic device for generating a masking signal is described. The electronic device includes a plurality of microphones and a speaker. The electronic device also includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a plurality of audio signals from the plurality of microphones. The electronic device also obtains an ambience signal based on the plurality of audio signals. The electronic device further determines an ambience feature based on the ambience signal. Additionally, the electronic device obtains a voice signal based on the plurality of audio signals. The electronic device also determines a voice feature based on the voice signal. The electronic device additionally generates a masking signal based on the voice feature and the ambience feature. The electronic device further outputs the masking signal using the speaker.

    摘要翻译: 描述用于产生掩蔽信号的电子设备。 电子设备包括多个麦克风和扬声器。 电子设备还包括存储在与处理器电子通信的存储器中的处理器和可执行指令。 电子设备从多个麦克风获得多个音频信号。 电子设备还基于多个音频信号获得环境信号。 电子设备还基于环境信号进一步确定环境特征。 此外,电子设备基于多个音频信号获得语音信号。 电子设备还基于语音信号确定语音特征。 电子设备还基于语音特征和氛围特征产生掩蔽信号。 电子设备还使用扬声器输出屏蔽信号。

    GENERATING A MASKING SIGNAL ON AN ELECTRONIC DEVICE
    3.
    发明申请
    GENERATING A MASKING SIGNAL ON AN ELECTRONIC DEVICE 有权
    在电子设备上产生屏蔽信号

    公开(公告)号:US20120316869A1

    公开(公告)日:2012-12-13

    申请号:US13155187

    申请日:2011-06-07

    IPC分类号: G10L21/02

    摘要: An electronic device for generating a masking signal is described. The electronic device includes a plurality of microphones and a speaker. The electronic device also includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The electronic device obtains a plurality of audio signals from the plurality of microphones. The electronic device also obtains an ambience signal based on the plurality of audio signals. The electronic device further determines an ambience feature based on the ambience signal. Additionally, the electronic device obtains a voice signal based on the plurality of audio signals. The electronic device also determines a voice feature based on the voice signal. The electronic device additionally generates a masking signal based on the voice feature and the ambience feature. The electronic device further outputs the masking signal using the speaker.

    摘要翻译: 描述用于产生掩蔽信号的电子设备。 电子设备包括多个麦克风和扬声器。 电子设备还包括存储在与处理器电子通信的存储器中的处理器和可执行指令。 电子设备从多个麦克风获得多个音频信号。 电子设备还基于多个音频信号获得环境信号。 电子设备还基于环境信号进一步确定环境特征。 此外,电子设备基于多个音频信号获得语音信号。 电子设备还基于语音信号确定语音特征。 电子设备还基于语音特征和氛围特征产生掩蔽信号。 电子设备还使用扬声器输出屏蔽信号。

    Management of signing privileges for a cryptographic signing service
    4.
    发明申请
    Management of signing privileges for a cryptographic signing service 有权
    管理加密签名服务的签名特权

    公开(公告)号:US20050246523A1

    公开(公告)日:2005-11-03

    申请号:US10837161

    申请日:2004-04-30

    摘要: A Management System (MS) manages signing privileges for entities desiring cryptographic signatures, and a Certificate Authority (CA) provides a cryptographic signing service. MS registers entities for the cryptographic signing service, determines signing privileges for each entity, and processes requests from entities for signatures. For registration, MS obtains registration information for the entity and invokes CA to generate an identity certificate for the entity. This identity certificate contains cryptographic information used to uniquely identify the entity. For signature generation, MS receives a request for a signature from the entity, authenticates the entity, authorizes or denies the request based on the signing privileges stored for the entity, and invokes CA to generate the signature if the signature is authorized. CA provides the cryptographic signing service and generates signatures and certificates as directed by MS.

    摘要翻译: 管理系统(MS)管理希望加密签名的实体的签名特权,证书颁发机构(CA)提供加密签名服务。 MS为加密签名服务注册实体,确定每个实体的签名特权,并处理来自实体签名的请求。 对于注册,MS获取实体的注册信息,并调用CA为该实体生成身份证书。 该身份证书包含用于唯一标识实体的加密信息。 对于签名生成,MS从实体接收到签名请求,根据为该实体存储的签名特权来认证实体,授权或拒绝请求,并且如果签名被授权,则调用CA生成签名。 CA提供加密签名服务,并按照MS的指示生成签名和证书。

    Discontinuous transmission (DTX) controller system and method

    公开(公告)号:US07505594B2

    公开(公告)日:2009-03-17

    申请号:US09742039

    申请日:2000-12-19

    申请人: Anthony Mauro

    发明人: Anthony Mauro

    CPC分类号: H04K1/00

    摘要: A method and apparatus for controlling a discontinuous transmission process. Audio information is digitized and provided to a vocoder. A voice activity level is determined from the digitized audio signal, and if voice activity is present, active vocoder frames are generated at a predetermined output rate. If voice activity is not detected, inactive vocoder frames are generated. During transitions between periods of speech activity and speech inactivity, transition frames are generated, the transition frames comprising background noise information.

    Associating software with hardware using cryptography
    8.
    发明申请
    Associating software with hardware using cryptography 有权
    将软件与使用密码学的硬件相关联

    公开(公告)号:US20050005098A1

    公开(公告)日:2005-01-06

    申请号:US10815256

    申请日:2004-03-31

    CPC分类号: G06F21/121 G06F21/51

    摘要: Techniques for associating software with hardware using cryptography are described. The software is identified by a software identifier (ID), and the hardware is identified by a hardware ID. The software is hashed to obtain a code digest. A code signature is generated for the code digest, software ID, and hardware ID. A code image is formed with the software, software ID, code signature, and a certificate. The certificate contains cryptographic information used to authenticate the certificate and validate the code signature. The code image is loaded onto a device. The device validates the software to hardware association prior to executing the software. For the validation, the device authenticates the certificate with a certificate authority public key embedded within the device. The device also validates the code signature using the cryptographic information contained in the certificate, information in the code image, and the hardware ID embedded within the device.

    摘要翻译: 描述了使用密码学将软件与硬件相关联的技术。 该软件由软件标识符(ID)标识,硬件由硬件ID标识。 该软件被散列以获得代码摘要。 为代码摘要,软件ID和硬件ID生成代码签名。 代码图像由软件,软件ID,代码签名和证书组成。 证书包含用于验证证书并验证代码签名的加密信息。 代码图像被加载到设备上。 在执行软件之前,设备会将软件验证为硬件关联。 对于验证,设备使用嵌入设备中的证书颁发机构公钥来验证证书。 设备还使用证书中包含的加密信息,代码映像中的信息和嵌入在设备内的硬件ID来验证代码签名。

    Mobile security system and method
    9.
    发明申请
    Mobile security system and method 有权
    移动安全系统和方法

    公开(公告)号:US20070118880A1

    公开(公告)日:2007-05-24

    申请号:US11283360

    申请日:2005-11-18

    申请人: Anthony Mauro

    发明人: Anthony Mauro

    IPC分类号: H04L9/32

    CPC分类号: G06F21/79 G06F2221/2105

    摘要: A system and method for providing a secure environment for mobile telephones and other devices are disclosed. The system and method may utilize trust zoning, layered memory, and a secure matrix model having, for example, a memory protection module for protecting memory; a secure debug module for ensuring security of the debug module; a secure file system module for protecting the secure file system; and a trusted time source module for protecting components. Embodiments of the present invention may protect against security attacks on a variety of hardware and software components while permitting suitable levels of accessibility for developmental and maintenance purposes.

    摘要翻译: 公开了一种用于为移动电话和其他设备提供安全环境的系统和方法。 系统和方法可以利用信任分区,分层存储器和具有例如用于保护存储器的存储器保护模块的安全矩阵模型; 一个用于确保调试模块安全性的安全调试模块; 用于保护安全文件系统的安全文件系统模块; 以及用于保护组件的可信时间源模块。 本发明的实施例可以防止对各种硬件和软件组件的安全攻击,同时允许用于开发和维护目的的适当级别的可访问性。

    Video encoding techniques
    10.
    发明申请
    Video encoding techniques 失效
    视频编码技术

    公开(公告)号:US20060140493A1

    公开(公告)日:2006-06-29

    申请号:US11364297

    申请日:2006-02-28

    IPC分类号: G06K9/36

    摘要: This disclosure is directed to encoding techniques that can be used to improve encoding of digital video data. The techniques can be implemented by an encoder of a digital video device in order to reduce the number of computations and possibly reduce power consumption during video encoding. More specifically, video encoding techniques are described which utilize one or more programmable thresholds in order to terminate the execution of various computations when the computations would be unlikely to improve the encoding. By terminating computations prematurely, the amount of processing required for video encoding can be reduced, and power can be conserved.

    摘要翻译: 本公开涉及可用于改进数字视频数据的编码的编码技术。 这些技术可以由数字视频设备的编码器来实现,以减少计算次数并且可能降低视频编码期间的功耗。 更具体地,描述了当计算不太可能改进编码时,利用一个或多个可编程阈值来终止各种计算的执行的视频编码技术。 通过过早地终止计算,可以减少视频编码所需的处理量,并且可以节省功率。