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公开(公告)号:CA1161500A
公开(公告)日:1984-01-31
申请号:CA388984
申请日:1981-10-29
Applicant: MOTOROLA INC
Inventor: DRAPAC GEORGE
Abstract: A radio signal receiving apparatus such as a pager with a security circuitry includes operator-controlled switches for providing a plurality of different command signals which are used to actuate the receiving apparatus in a different mode of operation, an interface circuitry with an optional feature circuitry coupled to the receiving circuitry of the apparatus for providing various optional functions such as automatic reset, single/dual function or battery saving functions to the receiving apparatus, and a security circuitry for preventing the receiving apparatus from receiving the incoming signal once tampering of the optional feature security is detected.
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公开(公告)号:CA2006501A1
公开(公告)日:1990-08-27
申请号:CA2006501
申请日:1989-12-22
Applicant: MOTOROLA INC
Inventor: DRAPAC GEORGE , WOLTZ STEPHEN H , OLIBONI MARK L
Abstract: A battery saving apparatus for supplying power to a selective call communication receiver for enabling the detection of a synchronization codeword in data received in a predetermined signaling format comprises circuits for supplying power to the receiver, and for detecting valid data received during a first portion of the first predetermined time interval. Power is maintained to the receiver for the remainder of the first predetermined time interval when valid data is detected in the first portion. A synchronization codeword detector is included for detecting a synchronization codeword. When valid data is subsequently detected following a second portion of the first predetermined time interval and the synchronization codeword is not detected in the first predetermined time interval, power is maintained to the receiver for a second predetermined time interval to further enable detection of the synchronization codeword.
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公开(公告)号:DE69026374D1
公开(公告)日:1996-05-09
申请号:DE69026374
申请日:1990-01-05
Applicant: MOTOROLA INC
Inventor: DAVIS WALTER , DRAPAC GEORGE , WOLTZ STEPHEN
Abstract: The pager receiver including a conventional address decoder, an alert envelope waveform generator, and an alert function mapper is disclosed. The pager is individually and uniquely characterized by programming the alert function mapper to govern the generation of assigned alert annunciation patterns by the waveform generator in response to selected decoded pager addresses and associated functions thereof, and to inhibit alert generation by the waveform generator in response to non-selected decoded pager addresses and associated functions thereof. In one embodiment, the alert signal waveform generator is enabled to respond to the alert function mapper only when the pager address is decoded by the decoder.
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公开(公告)号:HK1000757A1
公开(公告)日:1998-04-24
申请号:HK97102294
申请日:1997-12-01
Applicant: MOTOROLA INC
Inventor: DAVIS WALTER LEE , DRAPAC GEORGE , WOLTZ STEPHEN HENRY
Abstract: The pager receiver including a conventional address decoder, an alert envelope waveform generator, and an alert function mapper is disclosed. The pager is individually and uniquely characterized by programming the alert function mapper to govern the generation of assigned alert annunciation patterns by the waveform generator in response to selected decoded pager addresses and associated functions thereof, and to inhibit alert generation by the waveform generator in response to non-selected decoded pager addresses and associated functions thereof. In one embodiment, the alert signal waveform generator is enabled to respond to the alert function mapper only when the pager address is decoded by the decoder.
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公开(公告)号:DE69026374T2
公开(公告)日:1996-10-24
申请号:DE69026374
申请日:1990-01-05
Applicant: MOTOROLA INC
Inventor: DAVIS WALTER , DRAPAC GEORGE , WOLTZ STEPHEN
Abstract: The pager receiver including a conventional address decoder, an alert envelope waveform generator, and an alert function mapper is disclosed. The pager is individually and uniquely characterized by programming the alert function mapper to govern the generation of assigned alert annunciation patterns by the waveform generator in response to selected decoded pager addresses and associated functions thereof, and to inhibit alert generation by the waveform generator in response to non-selected decoded pager addresses and associated functions thereof. In one embodiment, the alert signal waveform generator is enabled to respond to the alert function mapper only when the pager address is decoded by the decoder.
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公开(公告)号:AT136416T
公开(公告)日:1996-04-15
申请号:AT90902960
申请日:1990-01-05
Applicant: MOTOROLA INC
Inventor: DAVIS WALTER LEE , DRAPAC GEORGE , WOLTZ STEPHEN HENRY
Abstract: The pager receiver including a conventional address decoder, an alert envelope waveform generator, and an alert function mapper is disclosed. The pager is individually and uniquely characterized by programming the alert function mapper to govern the generation of assigned alert annunciation patterns by the waveform generator in response to selected decoded pager addresses and associated functions thereof, and to inhibit alert generation by the waveform generator in response to non-selected decoded pager addresses and associated functions thereof. In one embodiment, the alert signal waveform generator is enabled to respond to the alert function mapper only when the pager address is decoded by the decoder.
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