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    • 8. 发明授权
    • Radio data communication method
    • 无线数据通信方式
    • US6078808A
    • 2000-06-20
    • US878977
    • 1997-06-19
    • Hiroshi FukutomiYu MatsumotoYusuke Miyata
    • Hiroshi FukutomiYu MatsumotoYusuke Miyata
    • H04Q7/14G08B5/22H04Q7/38H04Q7/20
    • G08B5/229
    • According to a conventional pager generally avalable, mere characters and symbols can be transmitted and received. In addition thereto, since code sets that can be transmitted and received are limited, data other than messages can not be transmitted and received. However, information management section of the present invention, when transmitting and receiving of data, such as schedule data, including codes other than the code sets, the data should be converted into data in a form of message before carrying out the tranmitting and receiving. Therefore, it is possible to transmit and receive a variety of data prepared in a form other than in a form of message. When transmitting of data, only the part that has been changed is transmitted while the information management section of the addressee changes only the part corresponding to the data that has been changed, i.e., the unchanged parts of the file are not changed. Therefore, it is possible to update data with remarkably little communication amount. The information management section of the addressee displays the changed part in a manner so as to be discriminated from other unchanged part. Accordingly, the user can identify the changed part.
    • 根据普通的寻呼机,可以传送和接收单个字符和符号。 此外,由于可以发送和接收的代码集被限制,所以不能发送和接收消息以外的数据。 然而,本发明的信息管理部在发送和接收诸如包括代码集以外的代码的调度数据的数据的发送和接收时,在进行发送和接收之前应将数据以消息的形式转换成数据。 因此,可以发送和接收以除消息形式之外的形式准备的各种数据。 当发送数据时,只有在收件人的信息管理部分仅改变对应于已被改变的数据的部分,即文件的未改变的部分没有改变的情况下,才发送已被改变的部分。 因此,可以以极少的通信量来更新数据。 收件人的信息管理部分以与其他不变部分相区别的方式显示变更的部分。 因此,用户可以识别改变的部分。