谁知道Centrality这个公司

richardliu

这家公司是专门做GPS导航方案的，有自己的芯片解决方案。不知道他们的芯片是否稳定
有朋友说他们的芯片不稳定，产品的一致性不好，所以虽然有些日本公司采用了他们的方案我们还是不放心。
欢迎对其有了解的朋友点评一下，最好能有可信的数据说话。

mythoron

<P>掌微电子吧？</P><P>据说做navigation是老大</P>

zm_hailuo

<P>是上海掌微电子，主要是做GPS主芯片，目前已经上市的有俩代芯片，ATLAS I 、ATLAS II。ATLAS III正在开发中。</P><P>ATLAS I是掌微一代芯片，芯片内部带收星算法，但效果不佳，系统稳定性较差，不能做精确导航，可与SIRF II / III 等结合一起开发使用；</P><P>ATLAS II 是掌微二代产品，内部带收星算法，目前测试，收星效果不错，其只要接GPS RF前端，然后把GPS信号传送到主芯片，实际测试效果跟SIRF III 效果差不多（某些性能上稍差，有一些性能优于SIRF III），系统比较稳定。目前韩国、日本台湾（神达MIO）及我国有几家较大的公司正在开发设计，今年三季度就有不错的产品上市。</P><P>ATLAS III 在收星性能上会有不错的收星定位效果，相关器会增加不少。</P><P>目前市场上导航产品的老大是SIRF，Centrality估计在今年四季度后市场份额会快速提示，但两家公司的产品侧重点有所不同。</P>

yvonnezhang

<P>大家好,我们专门在为上海掌微找人的,目前有的位置是软件和硬件工程师,有兴趣的人直接联系我吧~~</P><P>2 年经验的懂wince的软件工程师</P><H1 0cm 0cm 0pt"><EM><U><FONT face="Times New Roman" size=3>QUALIFICATION:</FONT></U></EM></H1><P 0cm 0cm 0pt"><FONT face="Times New Roman"> <p></p></FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">BS Degree, Computer Science or EE</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Minimum 5 year experience in developing software in c/c++</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Minimum 2-year experience in Windows CE device driver development</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Familiar with Windows CE Platform Builder, eve</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Understanding of low level I/O operations and interrupt handling is necessary</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Understanding of RISC architecture, MMU, Cache is a big plus</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Knowledge with ARM assembly programming is a big plus</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Good English skills and Team Spirit</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman"> <p></p></FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman"> <p></p></FONT></P><H1 0cm 0cm 0pt"><EM><U><FONT face="Times New Roman" size=3>JOB TASKS</FONT></U></EM></H1><P 0cm 0cm 0pt"><FONT face="Times New Roman"> <p></p></FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Work in the windows CE software group t</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Developing board-supporting package based on SOC chip. Software</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Components need to be developed include boot loader, device driver </FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">For display, audio, touch panel, flash, atapi, CF, USB, serial, etc.</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Profiling and optimizing system and driver performance.</FONT></P><P 0cm 0cm 0pt; TEXT-INDENT: 21.75pt"><FONT face="Times New Roman">Writing documents for developed software components.</FONT></P><P>Writing testing applications to test system performance and quality!</P><P>２年经验的硬件工程师</P><P 0cm 0cm 0pt"><FONT face="Times New Roman">Title: Hardware engineer </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> Department: System Hardware Group </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> Responsibility: </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 1. HandHeld reference design, including schematics, PCB layout, and debug;</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 2. Cooperate with manufacture department for board manufacture;</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 3. Maintain design file and document;</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 4. Support software development, QA's verification and release design to AE</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> Requirement:</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 1. Education: Bachellor or higher degrees in electronics or electical engineering; </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 2. Experience: at least 2 years hardware design working experience; </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 3. Embeded system concept; </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 4. Experience of handheld and GPS product system design; </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 5. EDA tools(Orcad and PowerPCB);</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 6. Responsible, Working in agrassive schedule</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 7. CPLD design and implementation; </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> 8. Experience of High-speed circuit design, EMC</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> </FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> **Optional: One of following experience will be prefered</FONT></P><P 0cm 0cm 0pt"><FONT face="Times New Roman"> **RF design experinece</FONT></P><P> **Familiar with C and ARM assemble language coding</P><P>msn:yvonnezhang1019@hotmail.com</P><P>13916638210     张小姐</P>