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    FREQUENCY CONTROL SYSTEM
    1.
    发明专利
    FREQUENCY CONTROL SYSTEM 未知

    公开(公告)号：GB2258961A

    公开(公告)日：1993-02-24

    申请号：GB9218094

    申请日：1992-08-24

    Applicant: MOTOROLA INC

    Inventor： SANECKI THEODORE T ,  SMALLWOOD RALPH D

    IPC: H03J7/02 ,  H03J1/00 ,  H04B1/26 ,  H04Q7/32 ,  H04Q7/38

    Abstract: A frequency control system for maintaining a receiver oscillation frequency of a variable frequency oscillator (580) of a receiver unit in a desired frequency relationship with oscillation frequency of a signal transmitted thereto. The frequency control system is operative only during those times in which the receiver unit receives an information-containing signal of desired characteristics such as a data signal or a voice signal.

    2.
    发明专利
    未知

    公开(公告)号：FR2722048B1

    公开(公告)日：1999-07-16

    申请号：FR9507220

    申请日：1995-06-16

    Applicant: MOTOROLA INC

    Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

    IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04M11/00

    Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

    3.
    发明专利
    未知

    公开(公告)号：DE19523180A1

    公开(公告)日：1996-01-11

    申请号：DE19523180

    申请日：1995-06-26

    Applicant: MOTOROLA INC

    Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

    IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04M3/42 ,  H04Q7/26

    Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

    Personal Phone Expansion System
    4.
    发明专利
    Personal Phone Expansion System 未知

    公开(公告)号：CA2151115A1

    公开(公告)日：1996-01-02

    申请号：CA2151115

    申请日：1995-06-06

    Applicant: MOTOROLA INC

    Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

    IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/24 ,  H04M1/72

    Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

    5.
    发明专利
    未知

    公开(公告)号：DE19523180C2

    公开(公告)日：2000-06-08

    申请号：DE19523180

    申请日：1995-06-26

    Applicant: MOTOROLA INC

    Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

    IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/26

    Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching between the phone line (16), the portable units (18), a full duplex speaker phone (24), and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12) provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

    FREQUENCY CONTROL SYSTEM
    7.
    发明专利
    FREQUENCY CONTROL SYSTEM 未知

    公开(公告)号：CA2073341C

    公开(公告)日：1996-06-25

    申请号：CA2073341

    申请日：1991-12-26

    Applicant: MOTOROLA INC

    Inventor： SANECKI THEODORE T ,  SMALLWOOD RALPH D

    IPC: H03J7/02 ,  H03J1/00 ,  H04B1/26 ,  H04Q7/32 ,  H04Q7/38

    Abstract: A frequency control system for maintaining a receiver oscillation frequency of a variable frequency oscillator of a receiver unit in a desired frequency relationship with oscillation frequency of a signal transmitted thereto. The frequency control system is operative only during those times in which the receiver unit receives an information-containing signal of desired characteristics such as a data signal or a voice signal.

    PERSONAL PHONE EXPANSION SYSTEM
    9.
    发明专利
    PERSONAL PHONE EXPANSION SYSTEM 未知

    公开(公告)号：CA2151115C

    公开(公告)日：1999-02-23

    申请号：CA2151115

    申请日：1995-06-06

    Applicant: MOTOROLA INC

    Inventor： WEIGAND DAVID L ,  SMALLWOOD RALPH D ,  TAYLOR MATTHEW W

    IPC: H04Q7/38 ,  H04M1/725 ,  H04M3/533 ,  H04M9/08 ,  H04Q7/24 ,  H04M1/72

    Abstract: A personal phone expansion system (10) includes a personal base station (12) and a plurality of portable units (18). The personal base (12) is connected to a phone line (16) and provides routing and switching (24) between the phone line (16), the portable units (18), a full duplex speaker phone (24) and a voice messaging system (26). The voice messaging system (26), which is contained within the personal base station (12), provides full voice mail functions. The personal base station (12) communicates with the portable units (18) by radio signals through a wireless interface (32). The portable units (18) can be used as standard cellular telephones when outside the range of the personal base station (12).

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