Monday, February 27, 2012

No. 449: Accelerating technological innovation to reduce charging frequency of smartphone (February 28, 2012)

With the rapidly growing popularity of smartphones, demand for reducing charging frequency is growing among consumers. A research team led by Keio University professor Hirotada Kuroda developed a technology data processing technology that can reduce the power consumption of a smartphone by up to 10%. The new technology is for wireless connection between the CPU and the memory. Data are traded between them using the electric field and the magnetic field created when an electric signal is transmitted, making it possible to reduce voltage to operate the memory. The research team confirmed that the wireless data processing can decrease the power consumption by 90% as compared with the existing wired data processing. In addition to the ability to reduce power consumption, the new technology has more than three times faster data processing speed than the existing technology.

Fujitsu developed a small amplifier to be incorporated in a smartphone. Using the technology that allows for the management of optimal voltage depending on usage, the company successfully reduced the power consumption by 30%. An amplifier is vital to intensify the output of electric waves that contain voice and data and deliver them to the base station, and consumes about 10% of power consumed by a smartphone. MM Research Institute, a research firm on the IT market, reported that more than 50% of smartphone users were dissatisfied with the waiting time before his or her smartphone finishes charging. A smartphone trades 10-20 times more data than a mobile phone. The race to launch the technology to reduce charging frequency will supposedly heat up.

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