Voice privacy adapter
    1.
    发明授权
    Voice privacy adapter 失效
    语音隐私适配器

    公开(公告)号:US3651404A

    公开(公告)日:1972-03-21

    申请号:US3651404D

    申请日:1970-01-12

    Applicant: MOTOROLA INC

    Inventor: ROLLINS THOMAS J

    CPC classification number: H04K1/04

    Abstract: A voice privacy adapter inverts the order of frequencies in a band of frequencies transmitted by radio to prevent unauthorized reception. The adapter includes an input circuit for selecting signals from one of either a transmitter or receiver in a two-way radio. A balanced modulator-chopper heterodynes the modulation signal with signals from a bistable multivibrator which is driven by an oscillator to produce a double sideband, suppressed carrier signal. The upper sideband is attenuated and the lower sideband is coupled to either the transmitter or receiver. The inversion of the signal at the transmitter followed by a second inversion at the receiver restores the modulation signal. Use of the balanced modulator-chopper eliminates all of the frequency components of the modulation signal thereby insuring privacy. The balanced modulator-chopper may be easily disabled allowing use of the radio without frequency inversion.

    Abstract translation: 语音隐私适配器反转通过无线电发送的频带的频率顺序,以防止未经授权的接收。 适配器包括用于从双向无线电中的发射机或接收机之一选择信号的输入电路。 平衡调制器斩波器利用来自双振荡器驱动的双稳态多谐振荡器的信号来调制调制信号,产生双边带,抑制载波信号。 上边带衰减,下边带耦合到发射机或接收机。 在发射机处的信号的反转随后在接收机处的第二次反转恢复调制信号。 使用平衡调制器斩波器消除调制信号的所有频率分量,从而确保隐私。 平衡调制器斩波器可以容易地禁用,允许使用无线电而不频率反转。

    Asynchronous data decoder
    3.
    发明授权
    Asynchronous data decoder 失效
    异步数据解码器

    公开(公告)号:US3623075A

    公开(公告)日:1971-11-23

    申请号:US3623075D

    申请日:1969-10-16

    Applicant: MOTOROLA INC

    CPC classification number: H04L27/24 H04L27/14

    Abstract: Digital information to be decoded is transmitted over a voice band transmission medium as a sequence of half-cycles of tone of different frequencies, with different frequency tones being utilized for mark and space data bits. Only a half-cycle is required for each data bit with a phase reversal occurring at each data bit. The incoming signals are transformed into a sequence of zero crossings with the pulse interval time duration between these zero crossings being compared with a local frequency standard. At the end of each pulse interval, the decision of whether or not a mark or space has been received is determined in accordance with the count stored in a counter driven by the local frequency standard. The counter then is reset, storing a new count during the next half-cycle signal received.

    SHOCK ISOLATION FOR SELECTIVE CALL RECEIVERS

    公开(公告)号:CA2102293A1

    公开(公告)日:1992-11-14

    申请号:CA2102293

    申请日:1992-03-02

    Applicant: MOTOROLA INC

    Abstract: A shock isolator (30) is provided within the housing (38) of a selective call receiver to substantially increase the natural frequency of vibration of the housing (38) and the printed circuit boards (54, 56) within the housing. The shock isolator (30) is a body of elastomeric material, preferably butyl rubber, which has component receiving apertures (32) molded therein for receiving the components (46, 48, 50) on the printed circuit board while at the same time contacting the printed circuit board. Th? ??yl rubber has a damping of at least 25 % (preferably 50 %) and a Durometer of between 50 and 70 type A (prererably 60).

    DISPOSITIVO ELECTRONICO PORTATIL Y METODO PARA OPERAR EL MISMO.

    公开(公告)号:MX2007001158A

    公开(公告)日:2007-04-19

    申请号:MX2007001158

    申请日:2005-07-26

    Applicant: MOTOROLA INC

    Abstract: Un dispositivo electronico portatil (100) comprende un dispositivo anexo (190, 195), un vibrador (175), y un procesador (105) acoplado entre el dispositivo anexo (190, 195) y el vibrador (175); el procesador (105) esta adaptado para detectar el dispositivo anexo (190, 195), determinar una identificacion para el dispositivo anexo (190, 195), asociar un voltaje de accionamiento con la identificacion, y accionar el vibrador (175) utilizando el voltaje de accionamiento.

    Communication system
    7.
    发明专利

    公开(公告)号:EG23576A

    公开(公告)日:2006-07-02

    申请号:EGNA2004000135

    申请日:2004-11-30

    Applicant: MOTOROLA INC

    Abstract: A system (100) for communicating multimedia messages includes a multimedia message server (102) that is operable to transmit (1404, 1406, 1408) visual media, a vibration melody (1200), and an audio segment (1300) that is preferably filtered (1402) to exclude frequencies of the vibration melody (1200) through a network (104) to a client device (106), and is operable to, preferably at a later time, to transmit instructions (1410) to the client device (106) to output the vibration melody (1200), audio segment (1300) and visual media. At the client device, (106) the audio segment (1300) and the vibration melody (1200) and visual media are preferably stored (1504, 1508, 1512) in a memory (608) and in response to the instruction signal are read (1616, 1518, 1520) from the memory (608), decoded (1522, 1524, 1526) and output (1528, 1530, 1532) to a user. The vibration melody (1200) and the audio segment (1300) are preferably applied at least partially concurrently applied to an electromechanical transducer (212).

    Communication system
    8.
    发明专利

    公开(公告)号:ZA200409655B

    公开(公告)日:2006-06-28

    申请号:ZA200409655

    申请日:2004-11-29

    Applicant: MOTOROLA INC

    Abstract: A system (100) for communicating multimedia messages includes a multimedia message server (102) that is operable to transmit (1404, 1406, 1408) visual media, a vibration melody (1200), and an audio segment (1300) that is preferably filtered (1402) to exclude frequencies of the vibration melody (1200) through a network (104) to a client device (106), and is operable to, preferably at a later time, to transmit instructions (1410) to the client device (106) to output the vibration melody (1200), audio segment (1300) and visual media. At the client device, (106) the audio segment (1300) and the vibration melody (1200) and visual media are preferably stored (1504, 1508, 1512) in a memory (608) and in response to the instruction signal are read (1616, 1518, 1520) from the memory (608), decoded (1522, 1524, 1526) and output (1528, 1530, 1532) to a user. The vibration melody (1200) and the audio segment (1300) are preferably applied at least partially concurrently applied to an electromechanical transducer (212).

    PORTABLE ELECTRONIC DEVICE AND METHOD OF OPERATION THEREFORE
    10.
    发明申请
    PORTABLE ELECTRONIC DEVICE AND METHOD OF OPERATION THEREFORE 审中-公开
    便携式电子装置及其操作方法

    公开(公告)号:WO2006014922A3

    公开(公告)日:2006-05-26

    申请号:PCT/US2005026431

    申请日:2005-07-26

    CPC classification number: H02J7/0063

    Abstract: A portable electronic device (100) comprises an attached device (190,195), a vibrator (175), and a processor (105) coupled between the attached device (190, 195) and the vibrator (175). The processor (105) is adapted to detect the attached device (190, 195), determine an identification for the attached device (190,195), associate a drive voltage with the identification, and drive the vibrator (175) using the drive voltage.

    Abstract translation: 便携式电子装置(100)包括连接装置(190,195),振动器(175)和连接在连接装置(190,195)和振动器(175)之间的处理器(105)。 处理器(105)适于检测附接的装置(190,195),确定附接装置(190,195)的标识,将驱动电压与识别相关联,并使用驱动电压驱动振动器(175)。

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