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    • 3. 发明申请
    • METHOD AND SYSTEM FOR IMPROVING VOICE QUALITY OF A VOCODER
    • 用于提高VOCODER语音质量的方法和系统
    • WO2006014924A2
    • 2006-02-09
    • PCT/US2005026433
    • 2005-07-26
    • MOTOROLA INCDESAI PRATIK VBOILLOT MARC ABEHBOODIAN ALI
    • BOILLOT MARC ABEHBOODIAN ALI
    • G10L25/90
    • G10L19/09
    • The invention concerns a method (300) and system (100) for improving voice quality of a vocoder (138, 158). The method includes the steps of monitoring (312) a pitch of a voice signal (400) at a transmitting unit (110); when the pitch of the voice signal reaches a predetermined threshold (840), shifting (326) the pitch of the voice signal to at least a portion of a predetermined range (810); transmitting (338) the pitch-shifted voice signal to a receiving unit (112); and at the receiving unit, reshifting (342) the pitch-shifted voice signal to a level that compensates the step of shifting the pitch of the voice signal at the transmitting unit.
    • 本发明涉及用于改善声码器(138,158)的语音质量的方法(300)和系统(100)。 该方法包括以下步骤:在发送单元(110)处监视(312)语音信号(400)的音调; 当语音信号的音调达到预定阈值(840)时,将语音信号的音调移位(326)至预定范围的至少一部分(810); 将音调移位的语音信号发送(338)到接收单元(112); 并且在接收单元处,将音调移位的语音信号转换(342)到补偿在发送单元处移动语音信号的音高的步骤的水平。
    • 4. 发明申请
    • CRYPTO-SYNCHRONIZATION FOR SECURE COMMUNICATION
    • 用于安全通信的同步同步
    • WO2006039001A3
    • 2009-04-09
    • PCT/US2005029688
    • 2005-08-23
    • MOTOROLA INCRAINBOLT BRADLEY JBOILLOT MARC A
    • RAINBOLT BRADLEY JBOILLOT MARC A
    • H04L1/00
    • H04L1/0061H04K1/00H04L1/0041H04L9/12
    • 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.
    • 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。
    • 7. 发明申请
    • SPEAKERPHONE HAVING IMPROVED OUTBOUND AUDIO QUALITY
    • SPEAKERPHONE具有改善的出站音频质量
    • WO2006026221A3
    • 2006-06-22
    • PCT/US2005029775
    • 2005-08-23
    • MOTOROLA INCBOILLOT MARC ABEHBOODIAN ALIDESAI PRATIK V
    • BOILLOT MARC ABEHBOODIAN ALIDESAI PRATIK V
    • H04B1/38
    • H04M1/6033H04M1/72558H04M19/04
    • A telephone (310) and a method for providing outbound audio when the telephone is operating in a speakerphone mode. A first data unit (350) including a first unit type identifier (360) can be received by the telephone. The first unit type identifier can be an indicator of a type of audio data contained in the first data unit. For instance, the first unit type identifier can indicate whether the audio data is music or non-music audio data. If the first unit type identifier has a first value, for example a value indicating that the audio data is music data, unmuted outbound audio reproduced from the first data unit can be provided and voice activity detection can be disabled. Additionally, inbound audio can be muted.
    • 一种电话(310)以及当电话在扬声器模式下工作时提供出站音频的方法。 包括第一单元类型标识符(360)的第一数据单元(350)可以由电话接收。 第一单元类型标识符可以是包含在第一数据单元中的音频数据的类型的指示符。 例如,第一单元类型标识符可以指示音频数据是音乐还是非音乐音频数据。 如果第一单元类型标识符具有第一值,例如表示音频数据是音乐数据的值,则可以提供从第一数据单元再现的未经调节的出站音频,并且可以禁止话音活动检测。 此外,入站音频可以静音。
    • 8. 发明申请
    • CRYPTO-SYNCHRONIZATION FOR SECURE COMMUNICATION
    • 用于安全通信的同步同步
    • WO2006039001A2
    • 2006-04-13
    • PCT/US2005/029688
    • 2005-08-23
    • MOTOROLA, INC.RAINBOLT, Bradley, J.BOILLOT, Marc, A.
    • RAINBOLT, Bradley, J.BOILLOT, Marc, A.
    • H04L1/00
    • H04L1/0061H04K1/00H04L1/0041H04L9/12
    • 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.
    • 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。
    • 9. 发明申请
    • METHOD AND SYSTEM FOR OPERATION OF A VOICE ACTIVITY DETECTOR
    • 用于操作语音活动检测器的方法和系统
    • WO2007018802A2
    • 2007-02-15
    • PCT/US2006/025118
    • 2006-06-28
    • MOTOROLA, INC.BOILLOT, Marc, A.MCINTOSH, Jason, D.YAGUNOV, Mikhail, U.
    • BOILLOT, Marc, A.MCINTOSH, Jason, D.YAGUNOV, Mikhail, U.
    • H04M9/08
    • H04M9/082
    • The invention concerns a system (100) and method (400) for operation of a voice activity detector (230). The system can include a speaker (105), a first microphone (110) and a second microphone (120) in which the first microphone and the second microphone can capture acoustic output from the speaker. The system can also include an adaptive module (220) in which the first microphone and the second microphone can provide signals to the adaptive module, and the adaptive module can provide an input to the voice activity detector. The adaptive module can receive a first input (242) from the first microphone and a second input (243) from the second microphone and can attempt to determine (430) a transformation between the first and second inputs for setting a configuration of the voice activity detector.
    • 本发明涉及用于话音活动检测器(230)的操作的系统(100)和方法(400)。 该系统可以包括扬声器(105),第一麦克风(110)和第二麦克风(120),其中第一麦克风和第二麦克风可以从扬声器捕获声音输出。 该系统还可以包括自适应模块(220),其中第一麦克风和第二麦克风可以向自适应模块提供信号,并且自适应模块可以向语音活动检测器提供输入。 自适应模块可以接收来自第一麦克风的第一输入(242)和来自第二麦克风的第二输入(243),并且可以尝试确定(430)第一和第二输入之间的转换以设置语音活动的配置 检测器。