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公开(公告)号：DE69228773D1
公开(公告)日：1999-04-29
申请号：DE69228773
申请日：1992-06-29
Applicant: MOTOROLA INC
Inventor： SIWIAK KAZIMIERZ , LEITCH CLIFFORD , SCHWENDEMAN ROBERT
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公开(公告)号：DE68928699T2
公开(公告)日：1999-01-07
申请号：DE68928699
申请日：1989-08-21
Applicant: MOTOROLA INC
Inventor： SCHWENDEMAN ROBERT , WILLARD DAVID FRANK
Abstract: A receiver (404) capable of receiving transmitted coded message signals during a predetermined one of a plurality of coded transmission slots transmitted on each of a plurality of channels (102-108) has an output (406) that detects channel identification information (208) and a memory (422) for storing predetermined channel identification information and active channel information indicating the active channels of the plurality of channels (102-108) capable of being received for at least one geographic area. Channel selecting means (426), further responsive to the active channel information, selects reception by the receiver (404) of only the active channels in the particular geographical area when the channel identification information (208) detected on the predetermined one of the plurality of channels (102-108) does not match predetermined channel identification information, whereby power consumption of the receiver is reduced, as exemplified in FIG. 6.
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公开(公告)号：DE69032430T2
公开(公告)日：1998-12-03
申请号：DE69032430
申请日：1990-11-23
Applicant: MOTOROLA INC
Inventor： SCHWENDEMAN ROBERT , KUZNICKI WILLIAM
Abstract: A satellite based simulcast paging communication system comprises a plurality of terrestrial stations capable of simulcasting the paging information with at least one satellite for reception by one or more of a plurality of terrestrial receivers (pagers). Also included is at least one control station for determining where and how to deliver the paging information to achieve simulcast transmission.
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公开(公告)号：DE69031687T2
公开(公告)日：1998-04-02
申请号：DE69031687
申请日：1990-11-09
Applicant: MOTOROLA INC
Inventor： SCHWENDEMAN ROBERT , KUZNICKI WILLIAM
Abstract: A satellite based paging communication system comprises at least one satellite capable of communicating the paging information to at least one terrestrial receiver some of which are capable of transmitting an acknowledge signal so that message reception may be verified and satellite traffic controlled.
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公开(公告)号：DE69031463T2
公开(公告)日：1998-03-26
申请号：DE69031463
申请日：1990-12-18
Applicant: MOTOROLA INC
Inventor： NELSON LEONARD , SCHWENDEMAN ROBERT , DELUCA MICHAEL , WILLARD DAVID , SANDVOS JERRY LEE , BRAUN WILLIAM
Abstract: A selective call receiver receives a signal having a baud rate and comprising a number of phases. The number of phases are time division multiplexed to form the signal. The selective call receiver has selective call address information assigned thereto and includes a receiver for receiving and demodulating the signal and a memory for storing predetermined information. A demultiplexer is coupled to the receiver and the memory for demultiplexing the signal to recover one of the number of phases in response to the predetermined information and the baud rate. The selective call receiver also includes a decoder coupled to the demultiplexing means for decoding said one of said number of phases of said signal to derive a selective call message therefrom.
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Patent Agency Ranking
公开(公告)号：ES2174145T3
公开(公告)日：2002-11-01
申请号：ES97107006
申请日：1992-06-29
Applicant: MOTOROLA INC
Inventor： SIWIAK KAZIMIERZ , LEITCH CLIFFORD DANA , SCHWENDEMAN ROBERT
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公开(公告)号：DE69232504T2
公开(公告)日：2002-09-26
申请号：DE69232504
申请日：1992-06-29
Applicant: MOTOROLA INC
Inventor： SIWIAK KAZIMIERZ , LEITCH CLIFFORD DANA , SCHWENDEMAN ROBERT
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公开(公告)号：DE68929097D1
公开(公告)日：1999-12-16
申请号：DE68929097
申请日：1989-08-21
Applicant: MOTOROLA INC
Inventor： SCHWENDEMAN ROBERT , WILLARD DAVID
Abstract: A receiver (404) capable of receiving transmitted coded message signals during a predetermined one of a plurality of coded transmission slots transmitted on each of a plurality of channels (102-108) has an output (406) that detects channel identification information (208) and a memory (422) for storing predetermined channel identification information and active channel information indicating the active channels of the plurality of channels (102-108) capable of being received for at least one geographic area. Channel selecting means (426), further responsive to the active channel information, selects reception by the receiver (404) of only the active channels in the particular geographical area when the channel identification information (208) detected on the predetermined one of the plurality of channels (102-108) does not match predetermined channel identification information, whereby power consumption of the receiver is reduced, as exemplified in FIG. 6.
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公开(公告)号：DE69032011T2
公开(公告)日：1998-07-09
申请号：DE69032011
申请日：1990-07-13
Applicant: MOTOROLA INC
Inventor： DELUCA MICHAEL , SNOWDEN GREGORY , SCHWENDEMAN ROBERT , JASINSKI LEON
Abstract: A paging system has a signal for transmitting a variable amount of messages to paging receivers. The signal has a synchronization signal (100), an address field (104), an information and a boundary signal indicative of the boundary between the address field and the information field. Each message has an address which is included within the address field and may have message information which is included in the information field. The information field includes two portions, a first portion (106) having a plurality of packets for holding a predetermined amount of information and a second portion (108) for holding a variable amount of information. If the message information is greater than the predetermined amount, it is stored in the second portion of information field and a vector signal indicating the location of the message information is stored in the first information field.
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公开(公告)号：DE68928699D1
公开(公告)日：1998-07-09
申请号：DE68928699
申请日：1989-08-21
Applicant: MOTOROLA INC
Inventor： SCHWENDEMAN ROBERT , WILLARD DAVID FRANK
Abstract: A receiver (404) capable of receiving transmitted coded message signals during a predetermined one of a plurality of coded transmission slots transmitted on each of a plurality of channels (102-108) has an output (406) that detects channel identification information (208) and a memory (422) for storing predetermined channel identification information and active channel information indicating the active channels of the plurality of channels (102-108) capable of being received for at least one geographic area. Channel selecting means (426), further responsive to the active channel information, selects reception by the receiver (404) of only the active channels in the particular geographical area when the channel identification information (208) detected on the predetermined one of the plurality of channels (102-108) does not match predetermined channel identification information, whereby power consumption of the receiver is reduced, as exemplified in FIG. 6.
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