公开(公告)号：US08942182B2

公开(公告)日：2015-01-27

申请号：US11562118

申请日：2006-11-21

Applicant: Dan Dumitru ,  Rakesh Arora ,  Eshwar Stalin

Inventor： Dan Dumitru ,  Rakesh Arora ,  Eshwar Stalin

IPC: H04M1/00 ,  H04L12/58 ,  H04L29/08 ,  H04L12/26 ,  H04M1/725

CPC classification number: H04L12/5895 ,  H04L43/0888 ,  H04L51/38 ,  H04L67/06 ,  H04M1/72547 ,  H04M2250/64

Abstract: A method for downloading data from a server to a portable electronic device operating on a wireless network includes determining a network speed of the wireless network, setting a chunk size based on the network speed, sending a request to the server including the chunk size and receiving data from the server in chunks having the chunk size.

Abstract translation: 一种将数据从服务器下载到在无线网络上运行的便携式电子设备的方法包括确定无线网络的网络速度，基于网络速度设置块大小，向服务器发送包括块大小和接收的请求 来自服务器的数据具有块大小的块。

公开(公告)号：US20090043865A1

公开(公告)日：2009-02-12

申请号：US11835595

申请日：2007-08-08

Applicant: Dan Dumitru ,  Rakesh Arora ,  Eshwar Stalin

Inventor： Dan Dumitru ,  Rakesh Arora ,  Eshwar Stalin

IPC: G06F15/16

CPC classification number: H04L51/38

Abstract: A method for downloading an attachment to an attachment viewer of a portable electronic device includes: sending an initial data request from said attachment viewer to a server in response to receipt of an email message including said attachment by said portable electronic device; accessing a graph structure representing a map of said attachment from said server, said graph structure having been previously built on said server; reconstructing said graph structure in response to said initial request and encapsulating said graph structure in data having an attachment viewer readable format, said data being stored on said server; and i) downloading successive chunks of said data from said server to said attachment viewer responsive to successive user requests; ii) storing each of said successive chunks of said data on said portable electronic device prior to display thereof; iii) displaying said successive chunks of said data on said portable electronic device and automatically downloading respective next chunks of said data from said server; and iv) while said data chunks of said data remain to be downloaded from said server performing steps i) to iii).

Abstract translation: 用于将附件下载到便携式电子设备的附件查看器的方法包括：响应于由所述便携式电子设备接收到包括所述附件的电子邮件消息，将来自所述附件查看器的初始数据请求发送到服务器; 从所述服务器访问表示所述附件的地图的图形结构，所述图形结构已经预先构建在所述服务器上; 根据所述初始请求重建所述图形结构，并将所述图形结构封装在具有附件查看器可读格式的数据中，所述数据被存储在所述服务器上; 以及i）响应于连续的用户请求，将所述数据的所述数据从所述服务器下载到所述附件查看器; ii）在显示之前将所述数据的所述连续块存储在所述便携式电子设备上; iii）在所述便携式电子设备上显示所述数据的所述连续块，并且从所述服务器自动下载相应的下一个所述数据块; 以及iv）当所述数据的所述数据块仍然从执行步骤i）至iii）的所述服务器下载时。

公开(公告)号：US5631367A

公开(公告)日：1997-05-20

申请号：US402095

申请日：1995-03-10

Applicant: Jag M. Khanna ,  Yatendra Kumar ,  Arun Malhotra ,  Rakesh Arora ,  Neera Tiwari

Inventor： Jag M. Khanna ,  Yatendra Kumar ,  Arun Malhotra ,  Rakesh Arora ,  Neera Tiwari

IPC: C07D501/00 ,  C07D501/04 ,  C07D501/59

CPC classification number: C07D501/00

Abstract: A process for the manufacture of 7-acylamino-3-hydroxy-cephem-4-carboxylate-1-oxide in E-rotamer form (Formula III), comprises reacting a 7-acylamino-3-exomethylenecepham-4-carboxylate-1-oxide with ozone in an inert organic solvent in the presence of a catalytic amount of an organic or inorganic base at a temperature ranging from about -80.degree. C. to about +20.degree. C. The E-rotamer (wherein the 3-hydroxy group is strongly hydrogen bonded to the carbonyl of the 4-ester group) exhibits different chemical and physical properties from and is more thermodynamically stable than, the Z-rotamer (wherein there is no hydrogen bonding between the 3-hydroxy group and the carbonyl of the 4-ester group).

Abstract translation: 用于制备E-旋转异构体形式的7-酰基氨基-3-羟基 - 头孢烯-4-羧酸酯-1-氧化物的方法（式III）包括使7-酰基氨基-3-异亚甲基头孢-4-羧酸酯-1-氧化物 氧化物与臭氧在惰性有机溶剂中，在约-80℃至约+20℃的温度范围内，在催化量的有机或无机碱存在下进行。该E-旋转异构体（其中3-羟基 与4-酯基团的羰基结合的强氢键）表现出与Z-旋转异构体（其中3-羟基和羰基之间没有氢键）的化学和物理性质不同，并且比热稳定性更强 4-酯基）。