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    EXTENSION-TYPE ANTENNA FOR BATTERY SUPPLIED PORTABLE RADIO TRANSMITTER-RECEIVERS
    41.
    发明专利
    EXTENSION-TYPE ANTENNA FOR BATTERY SUPPLIED PORTABLE RADIO TRANSMITTER-RECEIVERS 未知

    公开(公告)号：HU895721D0

    公开(公告)日：1990-09-28

    申请号：HU572189

    申请日：1989-09-22

    Applicant: MOTOROLA INC

    Inventor： JOHNSON ROBERT M

    IPC: H01Q20060101 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/30 ,  H01Q21/28 ,  H04B1/18

    Abstract: An antenna for a portable cellular telephone (100) includes a quarter-wavelength ground radiator (106) and a helical coil (104) capacitively coupled to an extendable half-wavelength radiator (102). The extendable half-wavelength radiator (102) includes a metallic coil (209) molded in plastic. The ground radiator (106) includes a serpentined transmission line (302) on a flexible circuit board (310). The helical coil (104) and ground radiator (106) are coupled by a transmission line (110) to a duplexer (112). The duplexer couples transmitter signals from a radio transmitter (114) to the antenna and receiver signals from the antenna to a radio receiver (116). The antenna may be advantageously utilized in any portable radio applications where small size and immunity to hand induced radiation losses are desired.

    42.
    发明专利
    未知

    公开(公告)号：DK149590A

    公开(公告)日：1990-06-19

    申请号：DK149590

    申请日：1990-06-19

    Applicant: MOTOROLA INC

    Inventor： JOHNSON ROBERT M

    IPC: H01Q20060101 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/30 ,  H01Q21/28 ,  H04B1/18 ,  H01Q1/10

    Abstract: An antenna for a portable cellular telephone (100) includes a quarter-wavelength ground radiator (106) and a helical coil (104) capacitively coupled to an extendable half-wavelength radiator (102). The extendable half-wavelength radiator (102) includes a metallic coil (209) molded in plastic. The ground radiator (106) includes a serpentined transmission line (302) on a flexible circuit board (310). The helical coil (104) and ground radiator (106) are coupled by a transmission line (110) to a duplexer (112). The duplexer couples transmitter signals from a radio transmitter (114) to the antenna and receiver signals from the antenna to a radio receiver (116). The antenna may be advantageously utilized in any portable radio applications where small size and immunity to hand induced radiation losses are desired.

    43.
    发明专利
    未知

    公开(公告)号：FI902561A0

    公开(公告)日：1990-05-23

    申请号：FI902561

    申请日：1990-05-23

    Applicant: MOTOROLA INC

    Inventor： JOHNSON ROBERT M

    IPC: H01Q20060101 ,  H01Q1/22 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q9/30 ,  H01Q21/28 ,  H04B1/18 ,  H01Q

    Abstract: An antenna for a portable cellular telephone (100) includes a quarter-wavelength ground radiator (106) and a helical coil (104) capacitively coupled to an extendable half-wavelength radiator (102). The extendable half-wavelength radiator (102) includes a metallic coil (209) molded in plastic. The ground radiator (106) includes a serpentined transmission line (302) on a flexible circuit board (310). The helical coil (104) and ground radiator (106) are coupled by a transmission line (110) to a duplexer (112). The duplexer couples transmitter signals from a radio transmitter (114) to the antenna and receiver signals from the antenna to a radio receiver (116). The antenna may be advantageously utilized in any portable radio applications where small size and immunity to hand induced radiation losses are desired.

    44.
    发明专利
    未知

    公开(公告)号：BR0317906A

    公开(公告)日：2005-11-29

    申请号：BR0317906

    申请日：2003-11-24

    Applicant: MOTOROLA INC

    Inventor： SMALLWOD RALPH D ,  JOHNSON ROBERT M

    IPC: H02J7/00

    Abstract: A method and apparatus for charging a rechargeable battery ( 110 ) that takes into account the use patterns of the particular battery. A user may only discharge the battery a little and recharge it frequently which is a low capacity high life cycle use pattern, or discharge the battery almost completely and place the battery on charge less frequently indicating a high capacity low life cycle use pattern. Herein, a battery is installed in an electronic device wherein a battery discharge determination circuit and a discharge determination algorithm determine the discharge level of the battery when a charging circuit is placed on the battery. The measurement algorithm determines from the rechargeable battery discharge level measurement how to recharge the rechargeable battery. The measurement algorithm may also determine how to recharge the rechargeable battery based on a plurality of previous measurements stored either in the electronic device or the battery.

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