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公开(公告)号:AT100231T
公开(公告)日:1994-01-15
申请号:AT89900974
申请日:1989-07-05
Applicant: MOTOROLA INC
IPC: G08B5/22
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公开(公告)号:AU2902189A
公开(公告)日:1989-07-19
申请号:AU2902189
申请日:1989-11-14
Applicant: MOTOROLA INC
Abstract: Apparatus and method is disclosed for automatically, or by selective response, call forwarding a message to one or more system pagers which have an acknowledge back capability. In one embodiment, disclosed apparatus automatically forwards a message to another system pager upon the initially called pager failing to acknowledge back within a predetermined time period. Such other pager is determined from a set paging hierarchy included within the paging terminal apparatus itself. In another embodiment, wherein the system pagers have multiple acknowledge back response capability, a called pager can request the received message be additionally call forwarded to one or more other system pagers in accordance with the particular acknowledge back response chosen by the called pager user.
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公开(公告)号:AU6963794A
公开(公告)日:1995-01-24
申请号:AU6963794
申请日:1994-06-06
Applicant: MOTOROLA INC
Inventor: GRANDFIELD WALTER JOSEPH
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公开(公告)号:AU619796B2
公开(公告)日:1992-02-06
申请号:AU2902188
申请日:1988-11-14
Applicant: MOTOROLA INC
IPC: H04B5/04
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公开(公告)号:AT153199T
公开(公告)日:1997-05-15
申请号:AT90902718
申请日:1990-01-05
Applicant: MOTOROLA INC
Inventor: GRANDFIELD WALTER JOSEPH , MITTEL JAMES GREGORY , DAVIS WALTER LEE
IPC: H03L7/00 , H03B5/04 , H03B5/12 , H03B5/36 , H03D7/00 , H03D7/12 , H04B1/16 , H04B1/26 , H04B1/10 , H04B15/06 , H03L5/00
Abstract: A heterodyne stage of a receiver which includes a conventional mixer circuit and local oscillator circuit further includes a differential amplifier circuit which measures the amplitude of the injection signal generated by the local oscillator circuit and controls it precisely to a desired reference level by adjusting the current bias supply to the local oscillator circuit within a banded range to ensure start-up of the local oscillator upon energization and to protect against loss of injection signal under all operating conditions. The differential amplifier circuit provides for a precise amplitude reference setting and sufficient closed-loop gain for controlling the amplitude of the injection signal with a minimum of error between the measured and reference values.
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公开(公告)号:HK9097A
公开(公告)日:1997-01-31
申请号:HK9097
申请日:1997-01-23
Applicant: MOTOROLA INC
Abstract: Apparatus and method is disclosed for automatically, or by selective response, call forwarding a message to one or more system pagers which have an acknowledge back capability. In one embodiment, disclosed apparatus automatically forwards a message to another system pager upon the initially called pager failing to acknowledge back within a predetermined time period. Such other pager is determined from a set paging hierarchy included within the paging terminal apparatus itself. In another embodiment, wherein the system pagers have multiple acknowledge back response capability, a called pager can request the received message be additionally call forwarded to one or more other system pagers in accordance with the particular acknowledge back response chosen by the called pager user.
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公开(公告)号:IN176442B
公开(公告)日:1996-05-25
申请号:IN1140DE1989
申请日:1989-12-01
Applicant: MOTOROLA INC
Inventor: GRANDFIELD WALTER JOSEPH , MITTEL JAMES GREGORY , DAVIS WALTER LEE
IPC: H04B1/00
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