2.
    发明专利
    未知

    公开(公告)号:MX155466A

    公开(公告)日:1988-03-16

    申请号:MX20192984

    申请日:1984-07-06

    Applicant: MOTOROLA INC

    Abstract: An adaptable homotropic antenna system for use with a portable communication transceiver is described. The antenna system can be used for reception or transmission and can be completely enclosed within the portable transceiver housing. The homotropic antenna system evaluates the quality of a received signal and if the signal is below a predetermined threshold level, an alternate antenna will be selected. The antenna system will continue to sample the available antennas until an antenna produces a signal of acceptable quality.

    3.
    发明专利
    未知

    公开(公告)号:DK508986D0

    公开(公告)日:1986-10-24

    申请号:DK508986

    申请日:1986-10-24

    Applicant: MOTOROLA INC

    Abstract: A circuit and technique for directing an adaptable antenna system is described. The invention is coupled to the output of an RF receiver configured to provide a data signal output, and evaluates the quality of the receiver data signal. The invention switches antennas when the signal quality deteriorates below a predetermined level.

    4.
    发明专利
    未知

    公开(公告)号:IT1179389B

    公开(公告)日:1987-09-16

    申请号:IT4852284

    申请日:1984-07-06

    Applicant: MOTOROLA INC

    Abstract: An adaptable homotropic antenna system for use with a portable communication transceiver is described. The antenna system can be used for reception or transmission and can be completely enclosed within the portable transceiver housing. The homotropic antenna system evaluates the quality of a received signal and if the signal is below a predetermined threshold level, an alternate antenna will be selected. The antenna system will continue to sample the available antennas until an antenna produces a signal of acceptable quality.

    5.
    发明专利
    未知

    公开(公告)号:DK508986A

    公开(公告)日:1986-10-24

    申请号:DK508986

    申请日:1986-10-24

    Applicant: MOTOROLA INC

    Abstract: A circuit and technique for directing an adaptable antenna system is described. The invention is coupled to the output of an RF receiver configured to provide a data signal output, and evaluates the quality of the receiver data signal. The invention switches antennas when the signal quality deteriorates below a predetermined level.

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