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    DATA AND VOICE COMMUNICATIONS APPARATUS
    4.
    发明专利
    DATA AND VOICE COMMUNICATIONS APPARATUS 未知

    公开(公告)号：GB2258368B

    公开(公告)日：1993-05-19

    申请号：GB9220896

    申请日：1992-10-05

    Applicant: MOTOROLA INC

    Inventor： ZDUNEK KENNETH J ,  KREBS JAY R

    IPC: H04B7/26 ,  H04W74/08 ,  H04W76/02 ,  H04W88/02 ,  H04W88/06

    Abstract: A shared data/voice communication system wherein data traffic may be guaranteed priority at a set, but programmable, level of system capacity and wherein interference between such data and voice traffic is effectively minimized. The system operates on standardized channel access rules in the data mode, as well as requesting permission to operate in the voice mode, which if granted, effects a specific protocol to condition the system for voice traffic and manage the same during such pendency. Long and short timers are selectively activated depending upon whether the system is in the voice or data mode to minimize collisions of the system radio data terminals requesting channel access.

    Shared data/voice communication system with programmable data priority
    5.
    发明专利
    Shared data/voice communication system with programmable data priority 未知

    公开(公告)号：HK149295A

    公开(公告)日：1995-09-29

    申请号：HK149295

    申请日：1995-09-21

    Applicant: MOTOROLA INC

    Inventor： ZDUNEK KENNETH J ,  KREBS JAY R

    IPC: H04B7/26 ,  H04W74/08 ,  H04W76/02 ,  H04W88/02 ,  H04W88/06 ,  H04Q7/00

    Abstract: A shared data/voice communication system wherein data traffic may be guaranteed priority at a set, but programmable, level of system capacity and wherein interference between such data and voice traffic is effectively minimized. The system operates on standardized channel access rules in the data mode, as well as requesting permission to operate in the voice mode, which if granted, effects a specific protocol to condition the system for voice traffic and manage the same during such pendency. Long and short timers are selectively activated depending upon whether the system is in the voice or data mode to minimize collisions of the system radio data terminals requesting channel access.

    Voice/data communication system
    6.
    发明专利
    Voice/data communication system 未知

    公开(公告)号：GB2217149A

    公开(公告)日：1989-10-18

    申请号：GB8902396

    申请日：1989-02-03

    Applicant: MOTOROLA INC

    Inventor： ZDUNEK KENNETH J ,  KREBS JAY R

    IPC: H04B7/26 ,  H04W74/08 ,  H04W76/02 ,  H04W88/02 ,  H04W88/06

    Abstract: A shared data/voice communication system wherein data traffic may be guaranteed priority at a set, but programmable, level of system capacity and wherein interference between such data and voice traffic is effectively minimized. The system operates on standardized channel access rules in the data mode, as well as requesting permission to operate in the voice mode, which if granted, effects a specific protocol to condition the system for voice traffic and manage the same during such pendency. Long and short timers are selectively activated depending upon whether the system is in the voice or data mode to minimize collisions of the system radio data terminals requesting channel access.

    Method and apparatus for supporting at least two communication services in a communication system
    7.
    发明专利
    Method and apparatus for supporting at least two communication services in a communication system 未知

    公开(公告)号：GB2299246B

    公开(公告)日：1998-02-11

    申请号：GB9608690

    申请日：1994-08-18

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY R ,  ERICKSON PAUL M

    IPC: H04W84/08 ,  H04M11/00

    Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

    A method of messaging in a communciation system
    8.
    发明专利
    A method of messaging in a communciation system 未知

    公开(公告)号：GB2296413A

    公开(公告)日：1996-06-26

    申请号：GB9604489

    申请日：1995-07-05

    Applicant: MOTOROLA INC

    Inventor： PIERCE JENNIFER ANN ,  FINKELSTEIN LOUIS DAVID ,  BROWN PETER B ,  KREBS JAY R

    IPC: G09C1/00 ,  H04L9/08 ,  H04L9/32 ,  H04Q7/34 ,  H04Q7/38 ,  H04L9/16 ,  H04L9/22

    Abstract: A communication system (100) employs a method of messaging between a subscriber unit (105) and an infrastructure communication center (101). A messaging key associated with a subscriber unit reference number is provided (203, 403) to the subscriber unit (105) and to the infrastructure communication center (101). An authentication key and/or an identifier for the subscriber unit (105) is then produced (300, 407) by either the subscriber unit (105) or the infrastructure communication center (101). The authentication key and/or the identifier is encrypted (207, 413) with the messaging key and is subsequently communicated (209, 415) between the subscriber unit (105) and the infrastructure communication center (101).

    SHARED DATA/VOICE COMMUNICATION SYSTEM WITH PROGRAMMABLE DATA PRIORITY
    9.
    发明专利
    SHARED DATA/VOICE COMMUNICATION SYSTEM WITH PROGRAMMABLE DATA PRIORITY 未知

    公开(公告)号：CA1306503C

    公开(公告)日：1992-08-18

    申请号：CA587017

    申请日：1988-12-23

    Applicant: MOTOROLA INC

    Inventor： ZDUNEK KENNETH J ,  KREBS JAY R

    IPC: H04B7/26 ,  H04W74/08 ,  H04W76/02 ,  H04W88/02 ,  H04W88/06

    Abstract: CM00421H A shared data/voice communication system wherein data traffic may be guaranteed priority at a set, but programmable, level of system capacity and wherein interference between such data and voice traffic is effectively minimized. The system operates on standardized channel access rules in the data mode, as well as requesting permission to operate in the voice mode, which if granted, effects a specific protocol to condition the system for voice traffic and manage the same during such pendency. Long and short timers are selectively activated depending upon whether the system is in the voice or data mode to minimize collisions of the system radio data terminals requesting channel access.

    DATA SIGNALLING SYSTEM
    10.
    发明专利
    DATA SIGNALLING SYSTEM 未知

    公开(公告)号：CA1217234A

    公开(公告)日：1987-01-27

    申请号：CA433332

    申请日：1983-07-27

    Applicant: MOTOROLA INC

    Inventor： BURKE TIMOTHY M ,  NOBLE SCOTT W ,  FREEBURG THOMAS A ,  KREBS JAY R

    IPC: H04B1/10 ,  H04B7/26 ,  H04M7/04 ,  H04W88/02 ,  H04B1/00 ,  H04Q7/00

    Abstract: A data signalling system for transmitting signals between at least one primary station (50,52) and a plurality of secondary stations (60,62,64). The system is well adapted for use in multiple unit radio communications systems capable of voice and data communications. A register model is utilized which permits a highly flexible signalling system compatable with a wide range of communications networks. Data transfer is accomplished using fixed length data packets 74 which are error correction encoded and transmitted utilizing PSK modulation.

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