Matsushita Electric, best known worldwide for its Panasonic brand of consumer electronics and digital communications products, has developed what it claims is the most power-efficient MPEG-4 video decoder chip to date.
The company expects to see applications for the device in mobile phone systems such as W-CDMA, PDC and PHS.
The new chip was formally announced at the International Solid-State Circuits Conference 2002, held in San Francisco this week.
Conventional MPEG-4 video decoder LSIs require a minimum power of 50 mW, which quickly drains batteries and limits operating time. Matsushita’s newly developed chip consumes only 11.1mW, greatly extending the operating time of devices based on it.
Power consumption has been minimised through the use of dedicated circuits (hardware engines) in the chip that handle both routine and large-scale computation processes; a digital signal processor (DSP) core handles non-routine processes.
Samples will be shipped in May 2002.