Hitachi Ltd., a major electrical machinery manufacturer, and Renesas Technology Corp., a microcontroller producer equally owned by Hitachi and Mitsubishi Electric Corp., have developed system-chip technology that can reduce the power consumption of cellular phones during standby time by 90%, the companies said Monday. The technology will enable mobile phone batteries to last 10 times longer with a single recharge, thereby extending their standby time to a maximum of about 30 days from the current two to three days, they said.
Their technological breakthrough concerns a CMOS transistor used in mobile phones and other small terminals for current control. The companies have also boosted the cellular phone’s data processing speed by 20%, making it easier for such terminals to offer video games with high-resolution images, the firms said. Continue >>