31.
    发明专利
    未知

    公开(公告)号:AT291295T

    公开(公告)日:2005-04-15

    申请号:AT96902592

    申请日:1996-01-11

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus adaptively selects a communication strategy for communicating a message in a selective call radio communication system including a fixed portion (100) and a portable portion (101). The fixed portion (100) transmits (402) an alert signal to the portable portion (101), and awaits (404) an acknowledgment signal including a signal quality estimate from the portable portion (101). The portable portion (101) receives (602) the alert signal, and computes (604, 606) the signal quality estimate therefrom. The portable portion (101) then sends (608) the acknowledgment signal to the fixed portion (100). In response to the acknowledgment signal, the fixed portion (100) selects (407) a transmission strategy in accordance with the signal quality estimate. For compatibility, the transmission strategy requires a matching reception strategy in the portable portion (101). After sending the acknowledgment signal, the portable portion (101) selects (609) the matching reception strategy in accordance with the signal quality estimate sent in the acknowledgment signal without requiring further communication with the fixed portion (100).

    GLOBAL SATELLITE COMMUNICATION SYSTEM WITH GEOGRAPHIC PROTOCOL CONVERSION

    公开(公告)号:CA2107660C

    公开(公告)日:1998-04-28

    申请号:CA2107660

    申请日:1992-02-26

    Applicant: MOTOROLA INC

    Abstract: A satellite communication system (1110) provides geographical protocol conversion for message deliverey between communication transceivers (1118, 1118') operating within at least two geographic areas (1116, 1116'). The satellite based communication system (1110) comprises a first communication transceiver (1118) operating within a first geographic area (1116), and providing message transmissions in a first predetermined message transmission protocol to a communication satellite (1120). The communication satellite (1120) comprises a satellite receiver (1312) for receiving the message transmissions delivered in the first predetermined message transmission protocol, a protocol converter (1318) for converting the message transmissions delivered in the first predetermined mesge transmission protocol into a message transmissions deliverable in a second predetermined message transmission protocol, and a satellite transmitter (1328) for transmitting the message transmissions deliverable in a second predetermined message transmission protocol to at least a second communication transceiver (1118'). The second communication transceiver operates within a second geographic area (1116'), for receiving the message transmissions delivered in the second predetermined message transmission protocol.

    Single turn ferrite rod antenna and method

    公开(公告)号:HK1000747A1

    公开(公告)日:1998-04-24

    申请号:HK97102298

    申请日:1997-12-01

    Applicant: MOTOROLA INC

    Abstract: An antenna (10) is described comprising a generally elongate, magnetically permeable core (12) having a major axis, an insulating substrate (20) being affixed to the core (12) along an axis parallel to the major axis, and having at least a pair of opposed spaced conductive runners (21) positioned along the substrate normal to said major axis. A plurality of charge storage devices (16) are secured between the pair of opposed spaced conductive runners (21). An electrically conductive split sleeve (14) is positioned surrounding the core (12), and has first and second edge portions in electrical connection with the pair of opposed spaced conductive runners (21) opposite said charge storage devices (16). Arrangements for mechanically mounting the antenna (10) are provided which are integral to the antenna (10). The mechanical mounting arrangements are separate from the arrangements provided for electrically connecting the antenna 10 to the receiver.

    METODO Y APARATO PARA SELECCIONAR ADAPTABLEMENTE UNA ESTRATEGIA DE COMUNICACION EN UN SISTEMA DE COMUNICACIONES DE RADIO DE LLAMADA SELECTIVA.

    公开(公告)号:MX9706533A

    公开(公告)日:1997-11-29

    申请号:MX9706533

    申请日:1996-01-11

    Applicant: MOTOROLA INC

    Abstract: Un método y aparato selecciona adaptablemente una estrategia de comunicacion para comunicar un mensaje en un sistema de comunicaciones de radio de llamada selectiva que incluye una parte fija (100) y una parte portátil (101). La parte fija (100) transmite (402) una señal de alarma a la parte portátil (101) y espera (404) una señal de acuse de recibo que incluye una estimacion de calidad de señal desde la parte portátil (101). La parte portátil (101) recibe (602) la señal de alarma y computa (604, 606) la estimacion de calidad de señal de aquélla. La parte portátil (101) envía luego (608) la señal de acuse de recibo a la parte fija (100). En respuesta a la señal de acuse de recibo, la parte fija (100) selecciona (407) una estrategia de transmision de acuerdo con la estimacion de calidad de señal. Para que haya compatibilidad, la estrategia de transmision necesita también una estrategia de recepcion coincidente en la parte portátil (101). Después de enviar la señal de acuse de recibo, la parte portátil (101) selecciona (609) la estrategia de recepcion coincidente de acuerdo con la estimacion de calidad de señal enviada en la señal de acuse de recibo sin que se necesite otra comunicacion con la parte fija (100).

    Portable communications receiver with improved battery saving function

    公开(公告)号:HK113497A

    公开(公告)日:1997-08-29

    申请号:HK113497

    申请日:1997-06-26

    Applicant: MOTOROLA INC

    Abstract: A personal communications device is described including a receiver (16), intended to be worn on the body, which receives, detects and stores messages transmitted on a first communication channel (14). The stored message is then transmitted over a second communications channel (20) to a second receiver (22) which is intended to be worn on the wrist. The second receiver (22) receives, detects and stores the message, and presents the message to the user in the form of a visual display. A system transmitting synchronization signals and coded message signals is also described. In particular, coded synchronization signals are used to indicate the transmission of coded message signals or the absence of transmission of coded message signals following the transmission of the coded synchronization signal, thereby providing a battery saving function for a personal communications receiver.

    Single turn ferrite rod antenna and method

    公开(公告)号:GB2255447B

    公开(公告)日:1996-02-07

    申请号:GB9204454

    申请日:1992-03-02

    Applicant: MOTOROLA INC

    Abstract: An antenna (10) is described comprising a generally elongate, magnetically permeable core (12) having a major axis, an insulating substrate (20) being affixed to the core (12) along an axis parallel to the major axis, and having at least a pair of opposed spaced conductive runners (21) positioned along the substrate normal to said major axis. A plurality of charge storage devices (16) are secured between the pair of opposed spaced conductive runners (21). An electrically conductive split sleeve (14) is positioned surrounding the core (12), and has first and second edge portions in electrical connection with the pair of opposed spaced conductive runners (21) opposite said charge storage devices (16). Arrangements for mechanically mounting the antenna (10) are provided which are integral to the antenna (10). The mechanical mounting arrangements are separate from the arrangements provided for electrically connecting the antenna 10 to the receiver.

    37.
    发明专利
    未知

    公开(公告)号:AT123911T

    公开(公告)日:1995-06-15

    申请号:AT88903114

    申请日:1988-03-24

    Applicant: MOTOROLA INC

    Abstract: A personal communications device is described including a receiver (16), intended to be worn on the body, which receives, detects and stores messages transmitted on a first communication channel (14). The stored message is then transmitted over a second communications channel (20) to a second receiver (22) which is intended to be worn on the wrist. The second receiver (22) receives, detects and stores the message, and presents the message to the user in the form of a visual display. A system transmitting synchronization signals and coded message signals is also described. In particular, coded synchronization signals are used to indicate the transmission of coded message signals or the absence of transmission of coded message signals following the transmission of the coded synchronization signal, thereby providing a battery saving function for a personal communications receiver.

    38.
    发明专利
    未知

    公开(公告)号:AT122188T

    公开(公告)日:1995-05-15

    申请号:AT90905867

    申请日:1990-02-27

    Applicant: MOTOROLA INC

    Abstract: A paging receiver having acknowledge back capability is provided with the capability to request a received message to be forwarded to an alternate paging receiver in a paging system after having received its address and associated message. The paging receiver includes an entry device for selecting the alternate paging receiver to which the message is further to be sent, and after the selection is made, the paging receiver generates the acknowledge back response requesting the message be further sent to the selected alternate paging receiver.

    40.
    发明专利
    未知

    公开(公告)号:AT88836T

    公开(公告)日:1993-05-15

    申请号:AT87901775

    申请日:1987-01-02

    Applicant: MOTOROLA INC

    Abstract: PCT No. PCT/US87/00001 Sec. 371 Date Mar. 13, 1987 Sec. 102(e) Date Mar. 13, 1987 PCT Filed Jan. 2, 1987 PCT Pub. No. WO88/05213 PCT Pub. Date Jul. 14, 1988.An antenna tuning arrangement is provided for a miniature personal communications device which is normally worn on the body. The device includes a wristband having an antenna and antenna tuning elements which are normally concealed, to allow the antenna to be tuned while the device is being worn. A receiver in the communications device is coupled to the antenna and to a tuning indicator circuit which provides a tuning indication when the tuning element is adjusted without requiring entry into the device. The tuning indicator operation is selectable and draws no power when not selected.

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