ｃａｄｅｎｃｅ的ｌｏｇｏ中ａ上面的一横有什么说法么？

我来猜一下吧：有点类似拼音标调，一声。`keid?ns

我猜是因为英文单词不能做为商标，所以加上一横。

out of box?
原来的logo有个框的，后来去掉了，但保留了这个“横”。

还真没注意呢  看来果真有一番说法
The Cadence Bar
The Cadence Bar is the defining feature of our signature and has a heritage
going back to our corporation’s first logo. It is also used as a graphic and
color element throughout our materials.
http://www.cadence.com/cadence/media_gallery/documents/CDNGuide_signature.pdf