mma766ofc加速度傳感器的手機(jī)

　　加速度計(jì)在手機(jī)市場(chǎng)上迅速擴(kuò)散，使得智能創(chuàng)新能夠繼續(xù)幫助開(kāi)發(fā)者區(qū)分產(chǎn)品和競(jìng)爭(zhēng)對(duì)手。

　　根據(jù)iSuppli，加速度計(jì)，迅速滲透手機(jī)市場(chǎng)，而且似乎在不久的將來(lái)不會(huì)。正如他們預(yù)測(cè)的，大約2010的移動(dòng)電話中有三分之一是MEMS加速度計(jì)。這一比例從2008的五上升到2009的11。加速度計(jì)允許用戶使用手指敲擊和三維運(yùn)動(dòng)來(lái)執(zhí)行特定命令，通常取代了多擊鍵的需要。

　　例如，手機(jī)用戶要求復(fù)雜的用戶界面，允許快速、精確的通信，而不需要復(fù)雜的數(shù)據(jù)輸入。他們還希望這些功能在預(yù)算價(jià)格的手機(jī)以及高端機(jī)型。飛思卡爾MMA7660FC低g，三軸數(shù)字加速度計(jì)是該公司的第一個(gè)是專為移動(dòng)電話和其他小的手持設(shè)備。低成本，低功耗智能感應(yīng)在一個(gè)緊湊的包可以添加巨大的功能，以便攜式電池供電的設(shè)備，沒(méi)有空余的余地。

　　Essentially， MEMS combine silicon-based microelectronics with micromachining technology. A three-axis accelerometer can detect motion on three different planes， or axes. This allows developers to implement a single accelerometer to incorporate tap， shake， and orientation detection in a mobile device. For instance， a back-and-forth shake and an up-and-down shake can be used to execute two different commands. Although accelerometers can be used in a number of hand-held applications， mobile phones have dominated the market. Accelerometers not only enable developers to incorporate clever innovations that differentiate their products from the competition， but also to extend revenue opportunities to ISVs （independent software vendors）， interface providers， and wireless service carriers.

　　The MMA7660FC accelerometer can be employed to detect natural user interactions， including：

　　Orientation detection that goes beyond automatically adjusting to a portrait or landscape configuration

　　Single-tap detection， which can be configured at user-selectable thresholds and time duration on the X， Y， and Z-axes

　　Shake， which can be used to represent specific keystrokes or a series of keystrokes

　　Gesturing and gaming moves， such as three-dimensional tilt， turn， and twist

　　However， portable devices such as mobile phones demand more than improved functionality alone if they want to carve out a profitable piece of the market. The inherent limitations of size and battery life， among others， must also be addressed.