Random multiple-access communication system
    11.
    发明授权
    Random multiple-access communication system 失效
    随机多址通信系统

    公开(公告)号:US4766591A

    公开(公告)日:1988-08-23

    申请号:US25234

    申请日:1987-03-12

    申请人: Jian-Cheng Huang

    发明人: Jian-Cheng Huang

    CPC分类号: H04L12/40163 H04L12/413

    摘要: A random multiple-access communication system operates both a feedback-ignored (e.g. ETHERNET) and a feedback-utilized (e.g. STACK) protocol simultaneously. The system is useful for communicating two types of information such as voice and data wherein one of the information types (e.g. voice) is subject to delay constraints. The feedback-utilized protocol has the effect of taking priority over the feedback-ignored protocol in the communication system to provide a priority transmission system.

    摘要翻译: 随机多址通信系统同时操作反馈忽略(例如ETHERNET)和反馈利用(例如STACK)协议。 该系统对于传送诸如语音和数据的两种类型的信息是有用的,其中信息类型(例如,语音)之一受到延迟约束。 反馈利用协议具有优先于通信系统中的反馈忽略协议的优点,以提供优先级传输系统。

    Method and System for Reducing Power Consumption in a Wireless Transmitter
    12.
    发明申请
    Method and System for Reducing Power Consumption in a Wireless Transmitter 审中-公开
    无线发射机降低功耗的方法和系统

    公开(公告)号:US20100246459A1

    公开(公告)日:2010-09-30

    申请号:US12301942

    申请日:2007-05-10

    IPC分类号: H04W52/02

    摘要: A system and method for reducing power consumption in a wireless transmitter is useful for conserving battery power in wireless communication devices. The method includes storing a voice data packet in a buffer operatively coupled to the wireless transmitter (step 310). A power supply of the wireless transmitter is then cycled between a high power level and a low power level (step 315). The voice data packet is then transmitted from the buffer to the wireless transmitter when the power supply of the wireless transmitter is at the high power level (step 320).

    摘要翻译: 用于降低无线发射机功耗的系统和方法对于节省无线通信设备中的电池电量是有用的。 该方法包括将语音数据分组存储在可操作地耦合到无线发射机的缓冲器中(步骤310)。 然后,无线发射机的电源在高功率电平和低功率电平之间循环(步骤315)。 当无线发射机的电源处于高功率电平时,语音数据分组然后从缓冲器发送到无线发射机(步骤320)。

    Subband normalization, transformation, and voiceness to recognize
phonemes for text messaging in a radio communication system
    13.
    发明授权
    Subband normalization, transformation, and voiceness to recognize phonemes for text messaging in a radio communication system 失效
    子带规范化,转换和语音识别无线电通信系统中文本消息的音素

    公开(公告)号:US6163765A

    公开(公告)日:2000-12-19

    申请号:US50184

    申请日:1998-03-30

    IPC分类号: G10L15/02 G10L25/93 H04W88/18

    摘要: A radio communication system includes a voice recognition system (221) for converting (400) a caller's voice message to a textual speech message. The textual speech message is then transmitted to an intended selective call radio (122). To perform these functions, the radio communication system includes a caller interface circuit (218), a transmitter (116), and a processor (222). To perform voice-to-text conversion, the processor is adapted to cause the caller interface circuit to sample a voice signal generated by the caller during a plurality of frame intervals, and to apply a Fourier transform thereto, thereby generating spectral data. The spectral data is subdivided into a plurality of bands. The spectral envelope of the spectral data is then filtered out to generate filtered spectral data. A Fourier transform is applied thereto to generate an autocorrelation function for each band. From the autocorrelation function of each band, a magnitude is determined, which is representative of the degree of voiceness of each band. The degree of voiceness for each band is then applied to a corresponding plurality of phoneme models, which are used to derive a textual equivalent of speech from the voice signal. The textual equivalent of speech is then transmitted to the selective call radio by way of the transmitter.

    摘要翻译: 无线电通信系统包括用于将呼叫者的语音消息转换(400)到文本语音消息的语音识别系统(221)。 然后将文本语音消息发送到预期的选择呼叫无线电(122)。 为了执行这些功能,无线电通信系统包括呼叫者接口电路(218),发射器(116)和处理器(222)。 为了执行语音到文本转换,处理器适于使呼叫者接口电路在多个帧间隔期间采样由呼叫者产生的语音信号,并对其进行傅里叶变换,由此产生频谱数据。 光谱数据被细分成多个频带。 然后滤出光谱数据的光谱包络以产生滤波的光谱数据。 对其进行傅立叶变换以产生每个频带的自相关函数。 根据每个频带的自相关函数,确定一个幅度,其代表每个频带的声音程度。 然后将每个频带的声音程度应用于相应的多个音素模型,这些音素模型用于从语音信号中导出语音的文本等价物。 然后通过发射机将语音的文本等价物发送到选呼通话。

    Alphanumeric message composing method using telephone keypad

    公开(公告)号:US5974121A

    公开(公告)日:1999-10-26

    申请号:US108828

    申请日:1998-07-01

    IPC分类号: H04M11/00

    CPC分类号: H04M11/022

    摘要: An interactive method for composing an alphanumeric message by a caller using a telephone keypad includes storing (215) a lexical database (135) from which unigram probabilities, forward conditional probabilities, and backward conditional probabilities for a plurality of words can be recovered; storing a received sequence of key codes (405) representing a sequence in which keys on a telephone style keypad are keyed; generating a word trellis including candidate words (415) derived from the sequence and the lexical database; determining a most likely phrase (420) from the candidate words, the unigram probabilities, forward conditional probabilities, and backward conditional probabilities; generating a most likely message (425) from the most likely phrase and presenting the most likely message to the caller; and confirming that the most likely message is the alphanumeric message (430).

    Method for monitoring communication talkgroups
    15.
    发明授权
    Method for monitoring communication talkgroups 失效
    监控通信对话组的方法

    公开(公告)号:US5434856A

    公开(公告)日:1995-07-18

    申请号:US151631

    申请日:1993-11-15

    申请人: Jian-Cheng Huang

    发明人: Jian-Cheng Huang

    IPC分类号: H04W84/08 H04L12/18

    CPC分类号: H04W84/08

    摘要: A voice packet, containing coded voice information for a communication talkgroup that is currently being monitored, is received and stored in a buffer (200-202) dedicated to the communication talkgroup. When a decoder (203-205) is available, the voice packet is decoded and the resulting decoded voice information is combined with other decoded voice information, pertaining to other monitored communication talkgroups, such that the combined decoded voice information can be rendered audible.

    摘要翻译: 包含用于当前被监视的通信对话组的编码语音信息的语音分组被接收并存储在专用于通信对话组的缓冲器(200-202)中。 当解码器(203-205)可用时,语音分组被解码,并且所得到的解码语音信息与其他被监控的通信对话组相关的其他解码语音信息组合,使得组合的解码语音信息可以被听到。

    Method for more efficient service request processing
    16.
    发明授权
    Method for more efficient service request processing 失效
    更有效的服务请求处理方法

    公开(公告)号:US5287552A

    公开(公告)日:1994-02-15

    申请号:US828327

    申请日:1992-01-30

    CPC分类号: H04W72/10 H04W84/08 H04W28/14

    摘要: A communication resource allocator of a trunking communication system may more efficiently handle service requests during extremely busy times in the following manner. While receiving service requests from communication units, the communication resource allocator determines whether it can process the service request within a predetermined period of time. If the communication resource allocator cannot process the service request within a predetermined period it generates a global system busy which indicates that the communication resource allocator cannot individually process or acknowledge additional service requests. Having generated the global system busy signal, the communication resource allocator transmits it to the plurality of communication units. The communication units process the global system busy signal such that they will not transmit nonpriority service requests during the duration of the global system busy signal. While the global system busy signal is active, the communication resource allocator processes received service requests and any service request having a priority service level until the processing time of the non priority service request is at least a portion of the predetermined period of time.

    摘要翻译: 集群通信系统的通信资源分配器可以在以下方式的非常繁忙的时间内更有效地处理业务请求。 在从通信单元接收服务请求的同时,通信资源分配器在预定的时间段内确定是否可以处理服务请求。 如果通信资源分配器在预定时间段内不能处理服务请求,则生成全局系统忙,其指示通信资源分配器不能单独处理或确认附加服务请求。 在生成全局系统忙信号之后,通信资源分配器将其发送到多个通信单元。 通信单元处理全局系统忙信号,使得它们在全局系统忙信号的持续时间期间不会发送非优先级服务请求。 当全局系统忙信号处于活动状态时,通信资源分配器处理所接收的服务请求和具有优先级服务级别的任何服务请求,直到非优先级服务请求的处理时间至少为预定时间段的一部分。

    Method for Animating an Image Using Speech Data
    17.
    发明申请
    Method for Animating an Image Using Speech Data 审中-公开
    使用语音数据来动画化图像的方法

    公开(公告)号:US20080259085A1

    公开(公告)日:2008-10-23

    申请号:US12147840

    申请日:2008-06-27

    IPC分类号: G06T15/70

    摘要: A method for animating an image is useful for animating avatars using real-time speech data. According to one aspect, the method includes identifying an upper facial part and a lower facial part of the image (step 705); animating the lower facial part based on speech data that are classified according to a reduced vowel set (step 710); tilting both the upper facial part and the lower facial part using a coordinate transformation model (step 715); and rotating both the upper facial part and the lower facial part using an image warping model (step 720).

    摘要翻译: 用于使图像动画化的方法对于使用实时语音数据来动画化头像是有用的。 根据一个方面,该方法包括识别图像的上脸部和下脸部(步骤705)。 基于根据减少的元音组分类的语音数据来对下面部部分进行动画化(步骤710); 使用坐标变换模型倾斜上脸部和下面部部分(步骤715); 并使用图像扭曲模型旋转上脸部和下面部部分(步骤720)。

    Speech dialog method and device
    18.
    发明申请
    Speech dialog method and device 审中-公开
    语音对话方法和设备

    公开(公告)号:US20070055524A1

    公开(公告)日:2007-03-08

    申请号:US11222215

    申请日:2005-09-08

    IPC分类号: G10L15/18

    CPC分类号: G10L15/22 G10L13/04

    摘要: An electronic device (200) for speech dialog includes functions that receive (205, 105) an utterance that includes an instantiated variable (215), perform voice recognition (210, 115, 120) of the instantiated variable to determine a most likely set of acoustic states (220) and a corresponding sequence of phonemes with stress information (215), determine prosodic characteristics (272, 274, 276, 130) for a synthesized value of the instantiated variable (236) from the sequence of phonemes with stress information and a set of stored prosody models. The electronic device generates (335, 140) a synthesized value of the instantiated variable using the most likely set of acoustic states and the prosodic characteristics of the instantiated variable.

    摘要翻译: 用于语音对话的电子设备(200)包括接收(205,105)包括实例变量(215)的话语的功能,执行所述实例化变量的语音识别(210,115,120)以确定最可能的一组 声学状态(220)和具有应力信息(215)的相应的音素序列确定来自具有应力信息的音素序列的实例化变量(236)的合成值的韵律特征(272,274,276,130),以及 一组存储的韵律模型。 电子设备使用最可能的声学状态集合和实例化变量的韵律特征来生成(335,140)所述实例化变量的合成值。

    Method and apparatus for non-speech activity reduction of a low bit rate digital voice message
    19.
    发明授权
    Method and apparatus for non-speech activity reduction of a low bit rate digital voice message 失效
    用于低比特率数字语音消息的非语音活动减少的方法和装置

    公开(公告)号:US06370500B1

    公开(公告)日:2002-04-09

    申请号:US09409187

    申请日:1999-09-30

    IPC分类号: G10L1900

    CPC分类号: G10L19/012 G10L25/78

    摘要: A technique is used in a speech encoder (107) that reduces non-speech activity of a low bit rate digital voice message. Speech model parameters that include quantized speech spectral parameter vectors are generated in a sequence of frames. A determination is made as to which frames of the sequence of frames are voiced frames and which frames are unvoiced frames. A consecutive sequence of frames of unvoiced frames is identified (2330) as an unvoiced burst when a length, NUV, of the consecutive sequence of frames exceeds a predetermined length, Ns. A non-speech activity portion of the unvoiced burst is identified (2335-2365) and removed.

    摘要翻译: 在语音编码器(107)中使用技术来减少低比特率数字语音消息的非语音活动。 包括量化语音频谱参数矢量的语音模型参数在帧序列中生成。 确定帧序列的哪些帧是浊音帧,哪些帧是清音帧。 当连续帧序列的长度NUV超过预定长度Ns时,确定无声帧的连续序列(2330)为无声突发。 确定清音突发的非语音活动部分(2335-2365)并移除。

    Alphanumeric message composing method using telephone keypad

    公开(公告)号:US6137867A

    公开(公告)日:2000-10-24

    申请号:US78733

    申请日:1998-05-14

    IPC分类号: H04M11/00

    摘要: An interactive method for composing an alphanumeric message by a caller using a telephone keypad includes storing (215) a lexical database (135) from which unigram probabilities, forward conditional probabilities, and backward conditional probabilities for a plurality of words can be recovered; storing a received sequence of key codes (405) representing a sequence in which keys on a telephone style keypad are keyed; generating a word trellis including candidate words (415) derived from the sequence and the lexical database; determining a most likely phrase (420) from the candidate words, the unigram probabilities, forward conditional probabilities, and backward conditional probabilities; generating a most likely message (425) from the most likely phrase and presenting the most likely message to the caller; and confirming that the most likely message is the alphanumeric message (430).