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公开(公告)号：US5241305A
公开(公告)日：1993-08-31
申请号：US737812
申请日：1991-07-09
CPC分类号： H04W8/245 , G08B3/1091 , G08B5/223 , G08B5/224 , G09B5/08 , H04W88/022
摘要： A pager based information system (2) is used to transmit both conventional individual and group messages (using pager capcodes (76) for pager identification) and three types of unconventional multi-recipient (M-R) messages (using database ID's (68), multi-level group (MLG) ID's (78) and M-R group ID's (46)), all using the conventional POCSAG pager transmission format. Operation of the pager (6) is software controlled through the use of a microprocessor (8) and RAM (16); auxiliary chips are not needed because of the relatively slow transmission speeds. Authority to receive the M-R messages is provided at the time of manufacture (electronic serial number (ESN) (74)) or via broadcast (database ID's, MLG ID's and group IDs). Database messages are stored in pager RAM in a hierarchical or tree structure. The software controlled pagers permit the over-the-air modification of the operation of selected pagers, such as the addition or deletion of group IDs and the change in the tree structure of the database area of RAM (typically through the transmission of database messages). The pager includes a real time pager clock ( 106) which is updated by pairs of broadcast time messages, the second having a time correction for the first.
摘要翻译： 基于寻呼机的信息系统（2）用于传送传统的个人和组消息（使用寻呼机标识码（76）进行寻呼机识别）和三种类型的非常规多接收者（MR）消息（使用数据库ID（68），多 级组（MLG）ID（78）和MR组ID（46）），都使用传统的POCSAG寻呼机传输格式。 寻呼机（6）的操作通过使用微处理器（8）和RAM（16）进行软件控制; 由于传输速度相对较慢，不需要辅助芯片。 在制造时（电子序列号（ESN）（74））或通过广播（数据库ID，MLG ID和组ID）提供接收M-R消息的授权。 数据库消息以分层或树结构存储在寻呼机RAM中。 软件控制的寻呼机允许选择的寻呼机的操作的空中修改，例如添加或删除组ID以及RAM的数据库区域的树结构的改变（通常通过传输数据库消息） 。 寻呼机包括通过成对的广播时间消息更新的实时寻呼机时钟（106），第二个具有用于第一个的时间校正。
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公开(公告)号：US5345227A
公开(公告)日：1994-09-06
申请号：US76303
申请日：1993-06-11
CPC分类号： G08B3/1091 , G08B3/1016 , G08B5/22 , G08B5/223 , G08B5/224 , G09B5/08 , H04W8/245 , H04W88/022
摘要： A pager system in which individual pagers have a database is disclosed. The database can be updated by transmitting a mask code and update data. The mask code indicates a mask stored in the individual pager itself which receives the data. Using the mask code, the mask is identified and used to indicate positions in the database where data is to be written.
摘要翻译： 公开了一种寻呼机系统，其中各个寻呼机具有数据库。 可以通过发送掩码代码和更新数据来更新数据库。 掩码码表示存储在单个寻呼机本身中的接收数据的掩码。 使用掩码代码，掩码被识别并用于指示要写入数据的数据库中的位置。
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3.发明授权System for identifying and displaying data transmitted by way of unique identifying frequencies from multiple vehicles 失效用于识别和显示通过来自多个车辆的唯一识别频率发送的数据的系统
公开(公告)号：US4449114A
公开(公告)日：1984-05-15
申请号：US362481
申请日：1982-03-26
CPC分类号： A63H18/005 , G07C1/24 , G07C9/00111 , G08G1/127
摘要： A system for detecting the location and identification of a number of vehicles at multiple points on a given track against a time gauge which includes an on-board transmitter on each vehicle of a unique identifying frequency, spaced receiving circuit elements along the track at multiple points connected to individual transmitters to receive and modify the identifying signal and transmit the signal to a programmed computer for translating the multiple signals of the different unique identifying frequencies into signals ascertainable on a portable hand apparatus selectively to indicate the speed of any selected vehicles as in a race, and to keep track of position standings and lap times.
摘要翻译： 一种用于根据时间计检测在给定轨道上的多个点处的多个车辆的位置和识别的系统，该时间计包括每个车辆上的车载发射机，其具有唯一的识别频率，在多个点处沿着轨道间隔开的接收电路元件 连接到各个发射机以接收和修改识别信号，并将信号发送到编程的计算机，用于将不同的唯一识别频率的多个信号转换成便携式手持设备上可识别的信号，以指示任何所选车辆的速度，如 比赛，并跟踪位置排名和圈数。
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公开(公告)号：US4845491A
公开(公告)日：1989-07-04
申请号：US50826
申请日：1987-05-15
CPC分类号： H04W8/245 , G08B3/1016 , G08B3/1091 , G08B5/22 , G08B5/223 , G08B5/224 , G09B5/08 , H04W88/022
摘要： A pager based information system is used to transmit both conventional private messages (using unique pager IDs) and two types of unconventional multi-recipient (M-R) messages (using database IDs and group IDs), all using the conventional POCSAG pager transmission format. Operation of the pager is software controlled through the use of a microprocessor and a RAM; auxiliary chips are not needed because of the relatively slow transmission speeds. Authority to receive the M-R messages is provided at the time of manufacture (database IDs) or via broadcasts (group IDs). Database type M-R messages are stored in the pager RAM in a hierarchial or tree structure. The software controlled pagers permit the over-the-air modification of the operation of selected pagers, such as the addition or deletion of group IDs and the change in the tree structure of the storage area for the database messages. The pager includes a real time pager clock which is update by pairs of broadcast time messages, the second having a time correction for the first.
摘要翻译： 基于寻呼机的信息系统用于传输传统的私人消息（使用独特的寻呼机ID）和两种类型的非常规多收件人（M-R）消息（使用数据库ID和组ID），全部使用传统的POCSAG寻呼机传输格式。 寻呼机的操作是通过使用微处理器和RAM进行软件控制的; 由于传输速度相对较慢，不需要辅助芯片。 在制造时（数据库ID）或通过广播（组ID）提供接收M-R消息的权限。 数据库类型M-R消息以分层或树结构存储在寻呼机RAM中。 软件控制的寻呼机允许选择的寻呼机的操作的空中修改，例如添加或删除组ID以及数据库消息的存储区域的树结构的改变。 寻呼机包括通过成对的广播时间消息更新的实时寻呼机时钟，第二个具有第一个时间校正。
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