MIXED MODULATION LEVEL COMMUNICATION SYSTEM
    1.
    发明申请
    MIXED MODULATION LEVEL COMMUNICATION SYSTEM 审中-公开
    混合调制电平通信系统

    公开(公告)号:WO9011675A3

    公开(公告)日:1991-04-18

    申请号:PCT/US9001467

    申请日:1990-03-19

    Applicant: MOTOROLA INC

    CPC classification number: H04L5/04 H04J15/00

    Abstract: A communication system has an information signal having a plurality of data streams (72, 77, 92). The data streams are simultaneously modulated on a multi-level symbol transmission (110). The data streams may have either independent or dependent signalling protocols. A transmitting means (105) generates the information in one of several embodiments. A first receiver (200) receives the information signal and processes only a first data stream for messages. A second receiver (300) receives the information signal and processes only the second data stream for messages. A third receiver (400) is capable of selectively receiving and processing a plurality of data streams. The third receiver is shown in several embodiments for selecting the data streams.

    SCAN LINE COMPRESSED FACSIMILE COMMUNICATION SYSTEM
    3.
    发明公开
    SCAN LINE COMPRESSED FACSIMILE COMMUNICATION SYSTEM 失效
    与扫描线的压缩传真通信系统

    公开(公告)号:EP0876727A4

    公开(公告)日:2002-06-19

    申请号:EP96942953

    申请日:1996-12-09

    Applicant: MOTOROLA INC

    CPC classification number: H04N1/41 H04N1/00281

    Abstract: A selective call receiver includes a receiver (103), a controller (105), and a display (113) for presenting a recovered source document. The receiver (103) provides a received paging message that was generated from the facsimile message of the original source document (208). The received paging message is interpreted and decoded by the controller (105). Using the display (113), a decoded scan line compressed document (1101) is presented in a format tht substantially resembles the facsimile message of the original source document (1100).

    RELIABLE MESSAGE DELIVERY SYSTEM
    4.
    发明公开
    RELIABLE MESSAGE DELIVERY SYSTEM 失效
    可靠的新闻输送系统

    公开(公告)号:EP0749657A4

    公开(公告)日:2000-03-15

    申请号:EP93921455

    申请日:1993-09-13

    Applicant: MOTOROLA INC

    CPC classification number: H04W88/185 H04M11/022

    Abstract: A method and apparatus for reliably delivering messages (200) from a central terminal (102) to a communication receiver (130) in a communication system (100), such as an electronic mail system. The central terminal (102) transmits messages (1300) to the communication receiver (130) and the communication receiver (130) receives transmitted messages (1300) over a first communication medium (122). The communication receiver (130) reconciles messages that it failed to receive over the first communication medium (122) with the central terminal (102) over a second communication medium (152). The reconciliation process between the communication receiver (130) and the central terminal (102) utilizes message identifiers (1308) transmitted with the messages (1300) to identify the messages (1300) being reconciled.

    APPARATUS AND METHOD FOR DISTINGUISHING IDENTIFIERS RECEIVED FROM TRANSMITTERS
    6.
    发明公开
    APPARATUS AND METHOD FOR DISTINGUISHING IDENTIFIERS RECEIVED FROM TRANSMITTERS 失效
    装置和方法杰出RADIO标识

    公开(公告)号:EP0746956A4

    公开(公告)日:1998-06-10

    申请号:EP95911798

    申请日:1995-02-17

    Applicant: MOTOROLA INC

    CPC classification number: G08B3/1083

    Abstract: An apparatus and a method in a radio communication system repeatedly transmit and receive identifiers (204, 208) including a nearby identifier received by a radio receiver (110, 112) from a nearby transmitter (104), and distant identifiers (204, 208) received from more distant transmitters (104). The method and the apparatus distinguish (720) in a probabilistic manner the nearby identifier (204, 208) from the distant identifiers (204, 208) by determining (712) the identifier (204, 208) received most dependably over a predetermined period.

    DATA COMMUNICATION RECEIVER HAVING VARIABLE LENGTH MESSAGE CARRY-ON.
    7.
    发明公开
    DATA COMMUNICATION RECEIVER HAVING VARIABLE LENGTH MESSAGE CARRY-ON. 失效
    具有可变长度信息的数据通信接收器。

    公开(公告)号:EP0597064A4

    公开(公告)日:1997-06-11

    申请号:EP93911166

    申请日:1993-05-06

    Applicant: MOTOROLA INC

    CPC classification number: H04W88/023 G08B5/227

    Abstract: A data communication receiver (106) is assigned for receiving message signals within one or more message transmission frames (Fig. 3) transmitted in a predetermined sequence. The message signals include address (1604) and message (1608) information, and information (1710) designating one or more additional message transmission frames to which the data communication receiver (106) is responsive for receiving the message signals.

    8.
    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).

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