公开(公告)号：US5831636A

公开(公告)日：1998-11-03

申请号：US756466

申请日：1996-11-26

申请人： Zaffer S. Merchant ,  Warren P. Glotzbach ,  Surendra J. Perera

发明人： Zaffer S. Merchant ,  Warren P. Glotzbach ,  Surendra J. Perera

IPC分类号： H03M7/40 ,  G06F3/00 ,  G06F3/01 ,  G06K15/00 ,  G06T9/00 ,  G09G5/24 ,  H03M7/30 ,  G06F3/14

CPC分类号： G06F3/018 ,  G06K15/00 ,  G06T9/001 ,  G09G5/246 ,  G06K2215/0008

摘要： A compression/decompression method useful in communicating ideographic characters to communication devices. An ideographic character is represented by a compressed character codeword including information defining a structure type or layout of the character, together with primitive types that represent combinations of simple graphical elements. A character generator read-only memory (CGROM) (20) includes a compressed character codeword database (22) and a primitive type database (24). Character codes corresponding to a compressed character codeword are transmitted to a communication device (600), such as a selective call receiver. The communication device (600) includes a microprocessor/controller (50) that decompresses the compressed character codewords corresponding to the character codes based on the data stored in the character database (22) and the primitive type database (24).

摘要翻译： 用于将表意字符传送到通信设备的压缩/解压缩方法。 表意字符由包括定义字符的结构类型或布局的信息的压缩字符码字以及表示简单图形元素的组合的原始类型表示。 字符发生器只读存储器（CGROM）（20）包括压缩字符代码字数据库（22）和原语类型数据库（24）。 对应于压缩字符代码字的字符代码被传送到诸如选呼接收机之类的通信设备（600）。 通信设备（600）包括微处理器/控制器（50），其根据存储在字符数据库（22）和原语类型数据库（24）中的数据对与字符代码相对应的压缩字符码字进行解压缩。

公开(公告)号：US07242923B2

公开(公告)日：2007-07-10

申请号：US10807549

申请日：2004-03-23

申请人： Surendra J. Perera ,  Deepak P. Ahya ,  Yanchen Qi

发明人： Surendra J. Perera ,  Deepak P. Ahya ,  Yanchen Qi

IPC分类号： H04M1/66

CPC分类号： H04W12/06 ,  H04M1/2535 ,  H04M1/66 ,  H04M1/7253

摘要： A method is provided for authenticating a wireless device with a fixed station. A first authentication request is received from the wireless device when the wireless device detects that the fixed station is in close proximity, and a second authentication request is received from the fixed station when the fixed station detects that the wireless device is in close proximity. The first authentication request includes a first unique identifier for identifying the wireless device and a second unique identifier for identifying the fixed station, and the second authentication request includes the second unique identifier. The wireless device is authenticated with the fixed station based on whether the second unique identifier received in the first authentication request matches the second unique identifier received in the second authentication request, and also based on whether the first unique identifier received in the first authentication request is associated in an authentication database with the second unique identifier received in the second authentication request. Also provided is an authentication server for authenticating a wireless device with a fixed station.

摘要翻译： 提供了一种用于对具有固定站的无线设备进行认证的方法。 当无线设备检测到固定站很近时，从无线设备接收到第一认证请求，并且当固定站检测到无线设备非常接近时，从固定站接收到第二认证请求。 第一认证请求包括用于识别无线设备的第一唯一标识符和用于标识固定站的第二唯一标识符，并且第二认证请求包括第二唯一标识符。 基于在第一认证请求中接收到的第二唯一标识符是否与第二认证请求中接收的第二唯一标识符匹配，并且还基于第一认证请求中接收的第一唯一标识符是否为 在认证数据库中与第二认证请求中接收的第二唯一标识符相关联。 还提供了用于使用固定站验证无线设备的认证服务器。