公开(公告)号：US08533154B2

公开(公告)日：2013-09-10

申请号：US11753290

申请日：2007-05-24

申请人： Xiao Fei Huang ,  Magnus Vejlstrup ,  David L. Rabbers ,  Pi-Yu Chung ,  Martin Susser ,  Aaron B. Hansen ,  Brian Scott ,  David J. George

发明人： Xiao Fei Huang ,  Magnus Vejlstrup ,  David L. Rabbers ,  Pi-Yu Chung ,  Martin Susser ,  Aaron B. Hansen ,  Brian Scott ,  David J. George

IPC分类号： G06F7/00 ,  G06F15/16

CPC分类号： G06F17/30578 ,  G06F17/30581 ,  Y10S707/99954

摘要： A method and system for synchronizing a main database of a server and a local database of a handheld device. A user can use an application residing in the handheld device to make transactions in the local database. During a synchronization operation, the handheld device and server are coupled. The system then determines whether the application should be updated and, if so, causes the server to provide an update. The system also causes the handheld device to provide to the server information related to the transactions made by the user to the local database. The system causes the server to perform transactions on the main database based on the transaction information. The system also causes the server to extract data from the main database. The server can then provide at least some of the extracted data to the handheld device to update the local database.

公开(公告)号：US07761535B2

公开(公告)日：2010-07-20

申请号：US10084257

申请日：2002-02-25

申请人： Xiao Fei Huang ,  Magnus Vejlstrup ,  David L. Rabbers ,  Pi-Yu Chung ,  Martin Susser ,  Aaron B. Hansen ,  Brian Scott ,  David J. George

发明人： Xiao Fei Huang ,  Magnus Vejlstrup ,  David L. Rabbers ,  Pi-Yu Chung ,  Martin Susser ,  Aaron B. Hansen ,  Brian Scott ,  David J. George

IPC分类号： G06F15/16 ,  G06F17/30

CPC分类号： G06F17/30578 ,  G06F17/30581 ,  Y10S707/99954

摘要： A method and system for synchronizing a main database of a server and a local database of a handheld device. A user can use an application residing in the handheld device to make transactions in the local database. During a synchronization operation, the handheld device and server are coupled. The system then determines whether the application should be updated and, if so, causes the server to provide an update. The system also causes the handheld device to provide to the server information related to the transactions made by the user to the local database. The system causes the server to perform transactions on the main database based on the transaction information. The system also causes the server to extract data from the main database. The server can then provide at least some of the extracted data to the handheld device to update the local database.

摘要翻译： 一种用于使服务器的主数据库和手持设备的本地数据库同步的方法和系统。 用户可以使用驻留在手持设备中的应用程序在本地数据库中进行交易。 在同步操作期间，手持设备和服务器被耦合。 然后，系统确定应用程序是否应该更新，如果是，则使服务器提供更新。 系统还使得手持设备向服务器提供与用户对本地数据库进行的交易相关的信息。 该系统使服务器根据交易信息在主数据库上执行交易。 该系统还使服务器从主数据库中提取数据。 然后，服务器可以将提取的数据中的至少一些提供给手持设备来更新本地数据库。

公开(公告)号：US07526575B2

公开(公告)日：2009-04-28

申请号：US09992511

申请日：2001-11-05

申请人： David L. Rabbers ,  Martin Susser ,  Pi-Yu Chung ,  David J. George ,  Aaron B. Hansen

发明人： David L. Rabbers ,  Martin Susser ,  Pi-Yu Chung ,  David J. George ,  Aaron B. Hansen

IPC分类号： G06F15/16 ,  G06F15/177 ,  G06F9/44 ,  G06F12/00

CPC分类号： G06F17/30581 ,  Y10S707/99952

摘要： A method and system for synchronizing a main database of a server and a local database of a handheld device. A user can use an application residing in the handheld device to make transactions in the local database. In a synchronization operation, a synchronization client is used to: establish a connection between a server and the synchronization client; receive an identifier for the main database's structure from the server; receive an identifier for the version of the handheld application from the server; send transaction information to the server; receive metadata to update the handheld application; and receive data extracted from the main database from the server. The synchronization client is also used to update filter information used by the server to reduce the size of the data downloaded to the handheld device.

摘要翻译： 一种用于使服务器的主数据库和手持设备的本地数据库同步的方法和系统。 用户可以使用驻留在手持设备中的应用程序在本地数据库中进行交易。 在同步操作中，使用同步客户端来建立服务器与同步客户端之间的连接; 从服务器接收主数据库结构的标识符; 从服务器接收手持应用程序版本的标识符; 将交易信息发送到服务器; 接收元数据以更新手持应用程序; 并从服务器接收从主数据库提取的数据。 同步客户端还用于更新服务器使用的过滤器信息，以减少下载到手持设备的数据的大小。

公开(公告)号：US07257649B2

公开(公告)日：2007-08-14

申请号：US09976400

申请日：2001-10-11

申请人： David L. Rabbers ,  Brian Scott ,  Martin Susser ,  David J. George

发明人： David L. Rabbers ,  Brian Scott ,  Martin Susser ,  David J. George

IPC分类号： G06F15/16 ,  G06F12/00

CPC分类号： G06F17/30575 ,  Y10S707/99953 ,  Y10S707/99954

摘要： A method and apparatus for transferring information in synchronizing a server and a handheld device are disclosed. The information is binary information that is then compressed using a suitable compression algorithm. The compressed binary data is then text encoded using a suitable text encoding algorithm. The text encoded information is then encoded according to a protocol associated with the connection between the server and the handheld device. For example, the server can perform the compression and encoding operations on database data to be downloaded to the handheld device to reduce the time needed to transfer the information between the server and the handheld device.

摘要翻译： 公开了一种用于在服务器和手持设备同步时传送信息的方法和装置。 信息是二进制信息，然后使用合适的压缩算法进行压缩。 然后使用合适的文本编码算法对压缩的二进制数据进行文本编码。 然后，文本编码信息根据与服务器和手持设备之间的连接相关联的协议进行编码。 例如，服务器可以对要下载到手持设备的数据库数据执行压缩和编码操作，以减少在服务器和手持设备之间传送信息所需的时间。

公开(公告)号：US4495623A

公开(公告)日：1985-01-22

申请号：US414094

申请日：1982-09-02

申请人： David J. George ,  Hue V. Nguyen ,  Raymond Yardy

发明人： David J. George ,  Hue V. Nguyen ,  Raymond Yardy

IPC分类号： G06F11/10 ,  G11B20/18 ,  H03M13/00 ,  H04N5/92

CPC分类号： G11B20/1809

摘要： A method and apparatus for encoding a plurality of bytes of digital data into a further plurality of bits suitable for storage in a storage medium, and for recovery therefrom, and for decoding the stored bits retrieved from the storage medium, for the recovery of the encoded bytes. The digital data bytes are arranged into a plurality of code blocks, each having a first predetermined number of columns and a second predetermined number of rows of bytes. A parity block of bytes of data is generated having a number of columns and a number of rows of bytes corresponding to the first predetermined number of columns and to the second predetermined number of rows of bytes, respectively, of the code blocks, the bits of data in the parity block corresponding to the computed parity of the combined corresponding bits in each of the code blocks. Secondly, a parity row of bytes of data are generated for each of the data blocks such that each bit in each byte in the parity row corresponds to the computed parity of the combined corresponding bits in each byte in the column of the associated data block of that parity row. Each such row of parity bytes is added to its associated block. Thirdly, a correction control word is generated for each 8 bit byte of data blocks, parity rows and parity blocks, and is added to its associated byte to form a composite word. The bits of data of all such composite words for all of the blocks are interleaved according to a matrix having a third predetermined number of rows and a fourth predetermined number of columns, and the interleaved data is provided in serial arrangement for storage.

摘要翻译： 一种用于将多个字节的数字数据编码为适用于存储在存储介质中并用于从存储介质中恢复的另外多个位的数据的方法和装置，以及用于对从存储介质检索的存储位进行解码，以便恢复编码的 字节。 数字数据字节被布置成多个代码块，每个代码块具有第一预定数量的列和第二预定数量的字节行。 产生数据字节的奇偶校验块，其具有分别对应于代码块的第一预定列数和第二预定数量的字节行的字节数和列数， 奇偶校验块中的数据与每个代码块中的组合对应位的计算奇偶校验相对应。 其次，为每个数据块生成奇偶数据字节行，使得奇偶校验行中的每个字节中的每个位对应于相关联的数据块的列中每个字节中组合的对应位的计算奇偶校验 那个奇偶校验行。 每个这样的奇偶校验字节行被添加到其相关联的块。 第三，为数据块，奇偶校验行和奇偶校验块的每个8位字节生成校正控制字，并将其添加到其相关联的字节以形成复合字。 根据具有第三预定行数和第四预定数量的列的矩阵来对所有块的所有这样的复合词的数据位进行交织，并且以串行方式提供交错数据用于存储。