DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS
    1.
    发明申请
    DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS 审中-公开
    具有优化信号能量参数的数字语音编码器

    公开(公告)号:WO9106943A3

    公开(公告)日:1992-08-20

    申请号:PCT/US9005693

    申请日:1990-10-09

    Applicant: MOTOROLA INC

    CPC classification number: G10L19/083 G10L19/125

    Abstract: A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term energy value.

    DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS.
    2.
    发明公开
    DIGITAL SPEECH CODER HAVING OPTIMIZED SIGNAL ENERGY PARAMETERS. 失效
    DIGITALER SPRACHKODIERER MIT OPTIMIERTEN SIGNALENERGIEPARAMETERN。

    公开(公告)号:EP0570365A4

    公开(公告)日:1993-04-02

    申请号:EP90915602

    申请日:1990-10-09

    Applicant: MOTOROLA INC

    CPC classification number: G10L19/083 G10L19/125

    Abstract: A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term energy value.

    Abstract translation: 一种语音编码器和解码器方法,其中音调激励和码本激励源能量(100)由容易在最小传输容量要求下传输的参数表示。 参数是长期能量值,适用于长期能量值以匹配短期能量的短期修正因子,以及指定激励源相对于短期能量贡献的比例因子(s) 能量值(101)。

    4.
    发明专利
    未知

    公开(公告)号:AT136146T

    公开(公告)日:1996-04-15

    申请号:AT88909654

    申请日:1988-08-24

    Applicant: MOTOROLA INC

    Abstract: A user-interactive speech recognition control system is disclosed for recognizing a complete sequence of keywords (e.g., a telephone number such as 123-4567) via entering, verifying, and editing variable-length utterance strings (e.g., 1-2-3; 4-5; 6-7) separated by the user-defined placement of pauses. The device controller (120) utilizes timers (124) to monitor the pause time between partial-sequence digit strings recognized by the speech recognizer (110). When a string of digits is followed by a predetermined pause time interval, the recognized digits will be replied via the speech synthesizer (130). An additional string of digits can then be entered, and only the subsequent string will be replied after the next pause. Furthermore, the user has the flexibility to correct only the last digit string entered, or the entire sequence. Hence, if there is an error in only one digit, the erroneous digit string can be corrected without having to re-enter the entire digit sequence. The invention is well-suited to be used in a hands-free voice command dialing system for a mobile radiotelephone, wherein vehicular background noise may affect recognition accuracy.

    DIGITAL SPEECH CODER WITH OPTIMISED SIGNAL ENERGY PARAMETERS

    公开(公告)号:NZ235702A

    公开(公告)日:1992-12-23

    申请号:NZ23570290

    申请日:1990-10-16

    Applicant: MOTOROLA INC

    Abstract: A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term energy value.

    8.
    发明专利
    未知

    公开(公告)号:BR8807726A

    公开(公告)日:1990-08-07

    申请号:BR8807726

    申请日:1988-08-24

    Applicant: MOTOROLA INC

    Abstract: A reliable method for terminating a telephone call is disclosed using a specific sequence of steps performed by hands-free control system. The invention requires that the call terminating command sequence be recognized as: two separate speech utterances (e.g., TERMINATE (158) and CONVERSATION (158)); in proper sequence (e.g. TERMINATE first, then CONVERSATION) with a maximum pause time interval (124) between the end of the first utterance and the start of the second utterance (e.g., 300 milliseconds) and which meet predefined speech recognition matching criteria (110). Moreover, the present invention provides the user with a procedure to continue the telephone call in progress should the speech recognizer make a false recognition or if the user did not intend to speak the proper command. As a result, present invention enables a user to disconnect a telephone call by voice command with a high degree of reliability, even under high ambient noise conditions.

    METHOD FOR TERMINATING A TELEPHONE CALL BY VOICE COMMAND

    公开(公告)号:AU2382688A

    公开(公告)日:1989-04-18

    申请号:AU2382688

    申请日:1988-08-24

    Applicant: MOTOROLA INC

    Abstract: A reliable method for terminating a telephone call is disclosed using a specific sequence of steps performed by hands-free control system. The invention requires that the call terminating command sequence be recognized as: two separate speech utterances (e.g., TERMINATE (158) and CONVERSATION (158)); in proper sequence (e.g. TERMINATE first, then CONVERSATION) with a maximum pause time interval (124) between the end of the first utterance and the start of the second utterance (e.g., 300 milliseconds) and which meet predefined speech recognition matching criteria (110). Moreover, the present invention provides the user with a procedure to continue the telephone call in progress should the speech recognizer make a false recognition or if the user did not intend to speak the proper command. As a result, present invention enables a user to disconnect a telephone call by voice command with a high degree of reliability, even under high ambient noise conditions.

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