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    System and method for facsimile data transmission
    2.
    发明专利
    System and method for facsimile data transmission 未知

    公开(公告)号：HK1025858A1

    公开(公告)日：2000-11-24

    申请号：HK00103283

    申请日：1998-08-21

    Applicant: QUALCOMM INC

    Inventor： PROPACH DAVID S ,  GROB MATTHEW S ,  JACOBS PAUL E ,  GADI KARMI

    IPC: H04M11/00 ,  H04N20060101 ,  H04N1/00 ,  H04N1/32 ,  H04N1/327 ,  H04N1/333 ,  H04N1/41 ,  H04N1/411 ,  H04N

    Abstract: In a method for minimizing a data bottleneck in a Low Data Rate Network (LDRN) (34), i.e. a facsimile network having a transmission rate less than the data rate of the facsimile machines serviced by the network, the LDRN (34) has a one-dimensional image data format and a two-dimensional image data format. The method comprises processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible, thereby minimizing any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate. In the method, a first facsimile (FAX) machine (12) is set to the one-dimensional image data format; a data stream encoded in the one-dimensional image data format is sent (32) from the first FAX machine (12) to a first side of the LDRN (34); the data stream sent is uncompressed, and the uncompressed data stream is re-encoded into the two-dimensional image data format; the re-encoded data stream is transmitted from the first side of the LDRN (34) to a second side of the LDRN (34); the transmitted data stream is second uncompressed; the second uncompressed data stream is second re-encoded into the one-dimensional image data format; and the re-encoded data stream is second sent (36) from the second side of the LDRN (34) to a second FAX machine (16).

    METHOD TO START AND STOP SERVICING USING VOICE SIGNALS OR DATA SIGNALS FROM MOBILE SET
    3.
    发明专利
    METHOD TO START AND STOP SERVICING USING VOICE SIGNALS OR DATA SIGNALS FROM MOBILE SET 未知

    公开(公告)号：RU2107402C1

    公开(公告)日：1998-03-20

    申请号：RU96111813

    申请日：1994-11-14

    Applicant: QUALCOMM INC

    Inventor： GVEJN BEJLI ,  MEHTT JU S GROB ,  GADI KARMI ,  ROBERT KH KIMBEHLL ,  DEHVID S PROPEHCH

    IPC: H04M11/00 ,  H04W76/04

    Abstract: FIELD: communication. SUBSTANCE: method involves use of custom telephone system with identical connection for transmission of voice signals and data, introduction of additional digital radio communication channel with different connection types for transmission of voice and data signals using new call commands which enter corresponding connection type. New commands may be used for calling from mobile set which has possibility to transmit voice and data signals but lacks possibility to transmit them simultaneously. In addition they may be used for starting simultaneous servicing using voice and data signals. EFFECT: increased functional capabilities. 14 cl, 4 dwgi

    Method and apparatus for hard handoff in a cdma system
    8.
    发明专利
    Method and apparatus for hard handoff in a cdma system 未知

    公开(公告)号：HK1023676A1

    公开(公告)日：2000-09-15

    申请号：HK00102368

    申请日：2000-04-19

    Applicant: QUALCOMM INC

    Inventor： LINDSAY WEAVER ,  DAVID MUNSINGER ,  ROBERTO PADOVANI ,  NOAM ZIV ,  GADI KARMI ,  KLEIN GILHOUSEN

    IPC: H04W36/14 ,  H04W24/02

    Abstract: The cellular communication system includes a number of base stations through which a mobile unit communicates. The mobile unit maintains a list of active base stations with which it can communicate. One of the active stations is in communication with the mobile and uses this communication to measure the round-trip-delay between mobile and station. This delay is compared with a threshold and if this is exceeded, and the base station is a boundary station, then a hard hand-off is executed. The mobile can also monitor candidate base stations and if a triggering pilot signal is detected a hand-off can be triggered. Preferably the handoff can be between base stations controlled by different mobile switching centres.

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