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5. 发明授权

US06861963B1 Encoding conversion fallback 失效
公开(公告)号：US06861963B1
公开(公告)日：2005-03-01
申请号：US10703813
申请日：2003-11-07
申请人： Shawn C. Steele , Yung-shin Lin , Julie D. Bennett , John I. McConnell
发明人： Shawn C. Steele , Yung-shin Lin , Julie D. Bennett , John I. McConnell
IPC分类号： H03M7/14 , H03M7/00
CPC分类号： H03M7/14
摘要： A system and method for converting a source data sequence to a target encoding is disclosed. A fallback technique, specifiable by a user program component, is applied to data in the source data sequence that cannot be mapped to the target encoding. A particular embodiment involves methods for encoding a Unicode string as a sequence of bytes in a target encoding, and decoded the encoded bytes back to Unicode.

6. 发明授权

US07468683B2 Encoding conversion fallback 有权
标题翻译：编码转换回退
公开(公告)号：US07468683B2
公开(公告)日：2008-12-23
申请号：US10969279
申请日：2004-10-19
申请人： Shawn C. Steele , Yung-Shin Lin , Julie D. Bennett , John I. McConnell
发明人： Shawn C. Steele , Yung-Shin Lin , Julie D. Bennett , John I. McConnell
IPC分类号： H03M7/00
CPC分类号： H03M7/14
摘要： A system and method for converting a source data sequence to a target encoding is disclosed. A fallback technique, specifiable by a user program component, is applied to data in the source data sequence that cannot be mapped to the target encoding. A particular embodiment involves methods for encoding a Unicode string as a sequence of bytes in a target encoding, and decoded the encoded bytes back to Unicode.
摘要翻译：公开了一种用于将源数据序列转换为目标编码的系统和方法。由用户程序组件指定的回退技术被应用于不能映射到目标编码的源数据序列中的数据。特定实施例涉及将Unicode字符串编码为目标编码中的字节序列的方法，并将编码字节解码为Unicode。

7. 发明授权

US5793381A Unicode converter 失效
标题翻译： Unicode转换器
公开(公告)号：US5793381A
公开(公告)日：1998-08-11
申请号：US527438
申请日：1995-09-13
申请人： Peter K. Edberg , John I. McConnell , Yung-Fong Frank Tang , Andrew M. Daniels
发明人： Peter K. Edberg , John I. McConnell , Yung-Fong Frank Tang , Andrew M. Daniels
IPC分类号： G06F17/22 , H03M7/30 , G06F7/00
CPC分类号： G06F17/227 , G06F17/2223 , H03M7/30
摘要： A character code conversion system that provides round trip fidelity, while ensuring that the resulting character codes are interchangeable with other platforms. The code conversion system is able to map a single source character or a sequence of characters to either a single target character or a sequence of target characters. With round trip fidelity, source text can be converted to target text and then back again to the original source text. The interchangability is ensured by maximizing the use of standard target characters, and by minimizing the use of private characters. The code conversion is particularly useful for converting to/from Unicode characters from/to other character sets.
摘要翻译：一种提供往返保真度的字符代码转换系统，同时确保所得到的字符代码与其他平台可互换。代码转换系统能够将单个源字符或一系列字符映射到单个目标字符或目标字符序列。具有往返保真度，源文本可以转换为目标文本，然后再次返回到原始的源文本。通过最大化标准目标字符的使用以及最小化私人字符的使用来确保互换性。代码转换对于从/转换为/从其他字符集的Unicode字符特别有用。

8. 发明授权

US5784069A Bidirectional code converter 失效
标题翻译：双向代码转换器
公开(公告)号：US5784069A
公开(公告)日：1998-07-21
申请号：US527827
申请日：1995-09-13
申请人： Andrew M. Daniels , Yung-Fong Frank Tang , Peter K. Edberg , John I. McConnell
发明人： Andrew M. Daniels , Yung-Fong Frank Tang , Peter K. Edberg , John I. McConnell
IPC分类号： G06F17/22 , G06F7/00
CPC分类号： G06K13/0825 , G06F17/2217 , G06F17/2223
摘要： A code conversion system that takes direction into consideration when converting characters from a source character encoding to a target character encoding is disclosed. The code conversion system is able to map a single source character or a sequence of characters to either a single target character or a sequence of target characters. By determining or resolving the direction of the characters being converted, the code conversion system can then utilize the determined or resolved direction of the characters to ensure that the correct mapping to the target character encoding is obtained.
摘要翻译：公开了一种在将字符从源字符编码转换为目标字符编码时将方向考虑在内的代码转换系统。代码转换系统能够将单个源字符或一系列字符映射到单个目标字符或目标字符序列。通过确定或解析正在转换的字符的方向，代码转换系统然后可以利用确定或解析的字符方向来确保获得与目标字符编码的正确映射。

9. 发明授权

US5526477A System and method for generating glyphs of unknown characters 失效
标题翻译：用于生成未知字符字形的系统和方法
公开(公告)号：US5526477A
公开(公告)日：1996-06-11
申请号：US177041
申请日：1994-01-04
申请人： John I. McConnell , Mordehai Huberman
发明人： John I. McConnell , Mordehai Huberman
IPC分类号： G09G5/06 , G06F17/21 , G06K19/06 , G06T11/20 , G09G5/22 , G06T11/00
CPC分类号： G06K7/143 , G06K19/06037 , G06T11/203
摘要： A method and apparatus for generating glyphs for text elements input to a computer having a memory with at least one look-up table storing glyphs corresponding to such text elements. Each text element is made up of at least one code point, and often of several code points. The system searches the table for a glyph representing an input text element, and if it is not found methodically generates subsets of the text element and searches the table for glyphs representing each of the subsets. Default characters are generated for code points not represented in the table. The system uses a classification for each code point, such as the Unicode classifications, and handles unknown code points in a manner dependent upon their classification. Where a text element includes two characters with an intermediate joining character, and the text element as a whole is not represented in the table, the two characters are output for rendering separately. Where a text element includes combining characters and the combined text element as whole is not represented in the table, the system generates the characters separately and then combines them for rendering as a single glyph. Unknown combining characters are replaced by a code point for a blank combining character, for allowing any surrounding combining characters to be rendered in a combined fashion.
摘要翻译：一种用于为输入到具有存储器的文本元素的文本元素生成字形的方法和装置，所述存储器具有存储与这样的文本元素对应的字形的至少一个查找表。每个文本元素由至少一个代码点组成，并且通常包含几个代码点。系统在表格中搜索表示输入文本元素的字形，并且如果没有找到方法地生成文本元素的子集，并在表中搜索表示每个子集的字形。为表中未表示的代码点生成默认字符。系统使用每个代码点的分类，例如Unicode分类，并以取决于其分类的方式处理未知代码点。其中文本元素包含两个具有中间连接字符的字符，并且文本元素作为一个整体未在表中表示，两个字符被输出用于单独进行渲染。在文本元素包括组合字符的情况下，组合的文本元素整体不在表中表示，系统会分别生成字符，然后将它们组合为渲染为单个字形。未知的组合字符被替换为空白组合字符的代码点，以允许以组合的方式呈现任何周围的组合字符。

10. 发明授权

US5682158A Code converter with truncation processing 失效
标题翻译：具有截断处理的代码转换器
公开(公告)号：US5682158A
公开(公告)日：1997-10-28
申请号：US527831
申请日：1995-09-13
申请人： Peter K. Edberg , John I. McConnell
发明人： Peter K. Edberg , John I. McConnell
IPC分类号： G06F3/00 , H03M7/30 , H03M7/00
CPC分类号： G06F3/00 , H03M7/30
摘要： A truncation technique for a character code conversion system is disclosed. The truncation technique ensures that a source string received for conversion is accurately converted into a different, target character encoding even when the source string exceeds the length of an input buffer which holds the source string for conversion. The truncation processing technique operates to truncate a portion of the source string held in the input buffer so that the truncated portion is able to be converted to the target character encoding without being affected by subsequent characters in the source string.
摘要翻译：公开了一种用于字符代码转换系统的截断技术。截断技术确保即使当源字符串超过保存用于转换的源字符串的输入缓冲区的长度时，也可以将接收到的用于转换的源字符串精确地转换为不同的目标字符编码。截断处理技术用于截断保持在输入缓冲器中的源字符串的一部分，使得截断部分能够被转换为目标字符编码，而不受源字符串中后续字符的影响。

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