CELLULAR TELEPHONE INTERFACE SYSTEM FOR AMPS AND CDMA DATA SERVICES

    公开(公告)号:CA2267333A1

    公开(公告)日:1998-04-09

    申请号:CA2267333

    申请日:1997-09-24

    Applicant: QUALCOMM INC

    Abstract: The cellular telephone interface system has the capability to automatically choose between AMPS and CDMA cellular transmission protocols for data transmissions. The cellular telephone interface system includes a PC-modem card, such as a PCMCIA card (8), for interconnecting the cellular telephone (4) to a data source, such as a laptop computer, portable facsimile machine, or the like. The cellular telephone (4) is capable of transmission in accordance with either AMPS or CDMA transmission protocols. For AMPS, the PCmodem card (8) converts data signals received from the data source into PCM signals for forwarding to the cellular telephone (4). The cellular telephone converts the PCM signals into AMPS formatted signals for transmission to a local cellular base station. For CDMA transmission, the PC-modem card (8) converts the data signals received from the data source into RS-232E signals for transmission to the cellular telephone.

    18.
    发明专利
    未知

    公开(公告)号:AT300842T

    公开(公告)日:2005-08-15

    申请号:AT00965449

    申请日:2000-09-27

    Applicant: QUALCOMM INC

    Inventor: PHILLIPS MARC S

    Abstract: A system and method for selecting from a plurality of data service options in a wireless communication system having mobile data service support. The system comprises a terminal device includes a terminal device for originating a call and transmitting and receiving data in accordance with a selected data service option. The terminal device includes a communications interface for inputting a sequence of one or more alpha-numeric characters representing an AT dial command string in order to originate the call and for including information that indicates the selected data service option. The system also includes a communication device, coupled to the terminal device, for interfacing with the wireless communication system and for sending signaling messages to the terminal device. The communication device receives the AT dial command string from the terminal device and examines the contents of the received AT dial command string. The communication device compares the contents of said AT dial command string with stored predetermined alpha-numeric character sequences. These character sequences include standard telephone numbers and reserved telephone numbers representing different data service options. The communication device determines whether a match exists between the inputted sequence and the stored reserved telephone numbers. If a match does exist, the communication device signals the terminal device to transmit data in accordance with the selected data service option indicated by the reserved telephone number.

    Determination of mobile service option via phone number.

    公开(公告)号:HK1047847A1

    公开(公告)日:2003-03-07

    申请号:HK02109441

    申请日:2002-12-31

    Applicant: QUALCOMM INC

    Inventor: PHILLIPS MARC S

    Abstract: A system and method for selecting from a plurality of data service options in a wireless communication system having mobile data service support. The system comprises a terminal device includes a terminal device for originating a call and transmitting and receiving data in accordance with a selected data service option. The terminal device includes a communications interface for inputting a sequence of one or more alpha-numeric characters representing an AT dial command string in order to originate the call and for including information that indicates the selected data service option. The system also includes a communication device, coupled to the terminal device, for interfacing with the wireless communication system and for sending signaling messages to the terminal device. The communication device receives the AT dial command string from the terminal device and examines the contents of the received AT dial command string. The communication device compares the contents of said AT dial command string with stored predetermined alpha-numeric character sequences. These character sequences include standard telephone numbers and reserved telephone numbers representing different data service options. The communication device determines whether a match exists between the inputted sequence and the stored reserved telephone numbers. If a match does exist, the communication device signals the terminal device to transmit data in accordance with the selected data service option indicated by the reserved telephone number.

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