Power-management techniques for multimedia mobile phones

摘要

Now that Asia and other markets race to deploy portable-media technology in the form of multimedia phones, designers must take a step back and consider power-management issues for these handheld devices (see sidebar "Asia looks to multimedia as the new 'new thing'"). Consumers have come to expect the small form factor and the long battery life on the 2G and 2.5G GSM (Global System for Mobile communication) or CDMA (code-division multiple-access) phones available today. The challenges to mobile-phone designers now are to include the new multimedia functions and still maintain the small, low-profile form factor of the handsets, as well as their long battery life. No one wants to deploy a handset that users would have to recharge after two hours of operation.