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    SEALED ELECTRONIC PACKAGE PROVIDING IN-SITU METALLIZATION
    31.
    发明申请
    SEALED ELECTRONIC PACKAGE PROVIDING IN-SITU METALLIZATION 审中-公开
    密封电子包提供现场冶金

    公开(公告)号：WO1993016577A1

    公开(公告)日：1993-08-19

    申请号：PCT/US1992010366

    申请日：1992-11-27

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  KNECHT, Thomas, A. ,  MANCINI, Brian, M. ,  KRAUSE, Joseph, P.

    IPC: H05K05/06

    CPC classification number: H03H9/0504 ,  H01L2224/16225 ,  H01L2224/50 ,  H03H3/02 ,  H03H9/1014

    Abstract: In-situ adjustments to frequency characteristics of an electronic device such as a piezoelectric element (40) can be accomplished by names of a predetermined atmosphere (18) enclosed within a package comprised of a base (12) and a cover (14) and an included amount of sputterable electrode material (22). By attachment of appropriate electric potentials (2), electrode molecules can be sputtered onto the electrode surfaces adjusting the resonant frequency characteristics of a crystal filter.

    Abstract translation: 诸如压电元件（40）的电子设备的频率特性的现场调节可以通过封装在由基座（12）和盖（14）组成的封装内的预定气氛（18）来实现，并且 包含量的可溅射电极材料（22）。 通过附加适当的电位（2），可以将电极分子溅射到调节晶体滤波器的谐振频率特性的电极表面上。

    TEMPERATURE COMPENSATION OF A CRYSTAL REFERENCE USING DIRECT DIGITAL SYNTHESIS
    32.
    发明申请
    TEMPERATURE COMPENSATION OF A CRYSTAL REFERENCE USING DIRECT DIGITAL SYNTHESIS 审中-公开
    使用直接数字合成的晶体参考温度补偿

    公开(公告)号：WO1993015555A1

    公开(公告)日：1993-08-05

    申请号：PCT/US1993000751

    申请日：1993-01-27

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  CARRALERO, Cesar, W. ,  BORRAS, Jaime, A. ,  GONZALEZ, Armando, J.

    IPC: H03L01/02

    CPC classification number: H03L1/026 ,  G06F1/0328 ,  H03L7/1806

    Abstract: Certain operational characteristics of a crystal (104) are measured during a testing and grading process. Once determined, information representing these operational characteristics are stored in memory (120) and utilized by a controller (122) to increment a phase increment register (114) upon determining the crystals ambient temperature via a temperature sensing circuit (124). The value stored in the phase increment register (114) is then sent to a phase accumulator (116) where successive phase increments are summed together. This summed value is in turn sent to a sine lookup table (118) where the instantaneous phase value is converted into sine amplitude. Finally, a digital to analog converter (126) converts the amplitude bit stream into an analog signal for use as a reference oscillator frequency having extremely high frequency resolution. The above-mentioned process is repeated every clock cycle until a complete sine wave is produced at which point the phase accumulator is reset to zero and the process begins again.

    INCREASED SPEECH INTERLEAVE WITH REDUCED DELAY
    34.
    发明申请
    INCREASED SPEECH INTERLEAVE WITH REDUCED DELAY 审中-公开
    增加语音延迟与减少延迟

    公开(公告)号：WO1993014584A1

    公开(公告)日：1993-07-22

    申请号：PCT/US1993000242

    申请日：1993-01-12

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  SPEAR, Stephen, Lee

    IPC: H04L05/26

    CPC classification number: H04W88/181

    Abstract: A Time Division Multiple access radiotelephone system has a base transceiver that receives speech from, and sends speech to, the Public switched Telephone Network. The base transceiver encodes (CO, DEC) the speech in a 20 ms recurrent time slot for each associated mobile transceiver. The mobile transceivers transmit to the base transceiver on a paired full duplex radio link.

    PRIORITIZATION METHOD AND DEVICE FOR SPEECH FRAMES CODED BY A LINEAR PREDICTIVE CODER
    36.
    发明申请
    PRIORITIZATION METHOD AND DEVICE FOR SPEECH FRAMES CODED BY A LINEAR PREDICTIVE CODER 审中-公开
    用于线性预测编码器编码的语音框架的优先方法和装置

    公开(公告)号：WO1993011530A1

    公开(公告)日：1993-06-10

    申请号：PCT/US1992008053

    申请日：1992-09-21

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  YONG, Mei

    IPC: G10L09/00

    CPC classification number: G10L19/06

    Abstract: A priority assignment method (100) and device (300) are set forth for assigning a priority to a selected speech frame coded by a linear predictor coder based on at least two of: an energy of the speech frame, a log spectral distance between selected consecutive frames, and a pitch predictor coefficient for the selected speech frame. The invention protects against loss of perceptually important and hard-to-reconstruct speech frames.

    USER SELECTABLE NOISE CANCELING FOR PORTABLE MICROPHONES
    37.
    发明申请
    USER SELECTABLE NOISE CANCELING FOR PORTABLE MICROPHONES 审中-公开
    用户可选择的噪音取消便携式麦克风

    公开(公告)号：WO1993010645A1

    公开(公告)日：1993-05-27

    申请号：PCT/US1992009795

    申请日：1992-11-13

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  BADIE, Mehrdad ,  WILLIAMS, William, R.

    IPC: H04R03/00

    CPC classification number: H04R1/38

    Abstract: Briefly, according to the invention, a noise-canceling microphone apparatus (302) is disclosed. The microphone comprises a housing (510) and a sound transducer (502) mounted within the housing (510). The housing has first (514) and second sides (512) and the transducer (502) has first (304) and second sound ports (308) coupled to the first (514) and second sides (512) of the housing respectively. The microphone (302) also includes a mounting clip (310) coupled to one side of the housing (512) in the proximity of one of the sound ports (308). The mounting clip (310) is intended for mounting the microphone (302) to a user so as to substantially close the sound port (308) when microphone (302) is attached.

    Abstract translation: 简而言之，根据本发明，公开了一种降噪麦克风装置（302）。 麦克风包括安装在壳体（510）内的外壳（510）和声音传感器（502）。 壳体具有第一（514）和第二侧（512），并且换能器（502）具有分别联接到壳体的第一（514）和第二侧（512）的第一（304）和第二声音端口（308）。 麦克风（302）还包括在靠近其中一个声音端口（308）的外壳（512）的一侧耦合的安装夹（310）。 安装夹（310）用于将麦克风（302）安装到使用者，以便当安装麦克风（302）时基本上关闭声音端口（308）。

    DEVICE AND METHOD FOR LINEAR LISTENER ECHO CANCELLATION
    39.
    发明申请
    DEVICE AND METHOD FOR LINEAR LISTENER ECHO CANCELLATION 审中-公开
    线性收听者ECHO取消的设备和方法

    公开(公告)号：WO1993010607A1

    公开(公告)日：1993-05-27

    申请号：PCT/US1992008294

    申请日：1992-09-30

    Applicant: MOTOROLA, INC.

    Inventor： MOTOROLA, INC. ,  LONG, Guozhu ,  LING, Fuyun ,  EYUBOGLU, M., Vedat

    IPC: H04J01/00

    CPC classification number: H04B3/235 ,  H04B3/232

    Abstract: A device and method utilize a linear feedback/feedforward configuration to estimate and cancel a listener echo wherein equalizer (202) and listener echo cancellation (204 and 208) units are jointly updated, allowing determination of an error signal once (204 and 208), in place of the former method of separate error signal determination for each of an equalizer and a listener echo canceller. An improved phase-correction scheme is utlized to compensate the frequency offset in the listener echo. The relationship between the listener echo and talker far echo is utilized to facilitate the listener echo cancellation.

    Abstract translation: 一种设备和方法利用线性反馈/前馈配置来估计和消除收听者回声，其中均衡器（202）和收听者回声消除（204和208）单元被联合更新，允许确定一次错误信号（204和208） 代替均衡器和收听回波消除器中的每一个的单独的误差信号确定的前一种方法。 改进的相位校正方案被用来补偿收听者回波中的频率偏移。 听众回声和讲话者远端回声之间的关系被用来促进听众回声消除。

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