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Description: 一个结构化存储的文件通常也称之为OLE复合文档。 复合文档具有很多特性，比如： （1）可以加载和保存局部文档，这可以避免为了读取一小段数据而载入整个文件。 （2）Windows本身在内部就提供了对复合文档的支持。举个例子，即便系统中没有安装Word，我们在资源管理器中察看Word文档的属性时，也可以显示它的大量信息，比如摘要、统计、作者、字数等。因为这些信息就是从Word的复合文档中读取的。 微软公司声称结构化存储将是未来Windows的缺省文件格式。MS-Office就已经大量的使用了结构化存储。-a structured storage files are also known as OLE compound documents. Compound document has many features, such as : (a) can be loaded and preserving local documents, it can be avoided in order to read a small portion of the entire data contained in documents. (2) within Windows itself on the right compound document support. For example, even if the system had not been installed Word, in which resources management for Word documents look at the properties, it can also show that the vast amount of information, such as summary statistics, the author and not so. Because this information is from the compound Word document read. Microsoft claims that the structure of storage will be a future Windows is the default file format. MS-Office on the use of a large number of the storage structure.
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Size: 21284 |
Author: yhb |
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Description: 一个结构化存储的文件通常也称之为OLE复合文档。 复合文档具有很多特性，比如： （1）可以加载和保存局部文档，这可以避免为了读取一小段数据而载入整个文件。 （2）Windows本身在内部就提供了对复合文档的支持。举个例子，即便系统中没有安装Word，我们在资源管理器中察看Word文档的属性时，也可以显示它的大量信息，比如摘要、统计、作者、字数等。因为这些信息就是从Word的复合文档中读取的。 微软公司声称结构化存储将是未来Windows的缺省文件格式。MS-Office就已经大量的使用了结构化存储。-a structured storage files are also known as OLE compound documents. Compound document has many features, such as : (a) can be loaded and preserving local documents, it can be avoided in order to read a small portion of the entire data contained in documents. (2) within Windows itself on the right compound document support. For example, even if the system had not been installed Word, in which resources management for Word documents look at the properties, it can also show that the vast amount of information, such as summary statistics, the author and not so. Because this information is from the compound Word document read. Microsoft claims that the structure of storage will be a future Windows is the default file format. MS-Office on the use of a large number of the storage structure.
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Size: 21504 |
Author: yhb |
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Description: 1 解码的关键是如何识别0 和 1 从位的定义我们可以发现0 1 均以 0.56ms
的低电平开始不同的是高电平的宽度不同0 为 0.56ms, 1 为 1.68ms,所以
必须根据高电平的宽度区别0 和 1 如果从 0.56ms 低电平过后开始延时
0.56ms 以后 若读到的电平为低说明该位为0 反之则为1 为了可靠起
见 延时必须比0.56ms 长些 但又不能超过1.12ms,否则如果该位为0 读到的
已是下一位的高电平因此取1.12ms+0.56ms /2=0.84ms 最为可靠一般取0.84ms
左右均可
2 根据码的格式应该等待9ms 的起始码和4.5ms 的结果码完成后才能读码
3 从上述两点我们可得到解码程序的流程图-A decoder, the key is how to identify 0 and 1 from the definition of bits we can find 01 are 0.56ms
The difference is that the beginning of the low-level high the width of the different 0 for 0.56ms, 1 is 1.68ms, so
Must be based on the width of the high difference between 0 and 1, if, after starting from the low latency 0.56ms
0.56ms later read that if a lower level shows that the bit is 0 the other hand, compared with one in order to reliably from
See Delay must be longer than 0.56ms but no more than 1.12ms, otherwise if the bit is 0 read
Is next to high so he 1.12ms+0.56 ms/2 = 0.84ms the most reliable in general take 0.84ms
So can
2 According to the format code should wait until the beginning of 9ms code and 4.5ms after the completion of the result code before reading
3 from the above two points that we receive decoding process flow chart
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Size: 2048 |
Author: AC |
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Description: Sony Memory Stick pro Spec 1.00-01
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Size: 1705984 |
Author: curliph |
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Description: 系统功能简介
1.支持CTR-2000II 和 ID-AS2000两种电脑考勤仪，且卡号为5位
2.工号最在长度为10位,实际使用长度可由用户自已决定
3.系统的基本资料用户可以设定, 如：班组、班次、加班类型、请假类型、国定假期等
4.班次设定可以跨天数
5.日期采用长日期格式, 如2013-05-10,可以跨年度作业；
6.系统采用MS SQL Server数据库,有利于提高数据存储量，提高数据处理、查询、统计速度和安全性及稳定性
7.系统可作为单机版或网络版使用,系统管理员可控制用户的权限,如：查询、增加、修改、删除、统计、打印等权限.-System Features
1 supports CTR-2000II and ID-AS2000 two computer attendance instrument, and the card number is five
(2) the length of job number 10, the length of the actual use by the user their own decisions
3 basic information users can configure the system, such as: team, shift, overtime types, the type of leave, national holidays, etc.
4 frequency settings across several days
5 date using the long date format, such as 2013-05-10, you can multi-year job
6 system uses MS SQL Server database, will help improve data storage, improved data processing, query, statistics speed and security and stability
7 system can be used as stand-alone or network version to use, the system administrator can control user privileges, such as: query, add, modify, delete, authority statistics, printing and so on.
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Size: 2598912 |
Author: billow |
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