Standard Mobile Imaging Architecture

Nokia and STMicroelectronics Introduce New Camera-Module Standard For Mobile Devices

1.07.2004

SMIA Specification Targets Multiple Sourcing and Lower Camera-Phone Costs in Booming Market

Helsinki and Geneva - Nokia (NYSE: NOK) and STMicroelectronics (NYSE: STM) today announced that they are releasing a comprehensive specification for camera modules, aimed at standardizing this increasingly important component in mobile devices.

The specification, dubbed Standard Mobile Imaging Architecture, or SMIA, will cover all aspects of the modules, including their electrical, mechanical, and functional interfaces, and also address other key areas such as characterization, optical performance, and reliability. The SMIA specification is offered for free to the mobile imaging industry and is available at smia-forum.org.

The mobile-phone camera-module industry has developed rapidly in terms of technology, with dramatic increases in image quality and higher resolution. SMIA is a standardization effort to fulfill the emerging new requirements and enable mobile handset vendors to work with multiple suppliers. SMIA's target is to address the task of specifying functional and optical behavior of camera modules and therefore truly enable cost-efficient multiple sourcing of the module at the phone level.

"The camera phone market will increase rapidly with cameras entering into key product segments of mobile devices. Nokia recently estimated that the camera phone market would exceed 200 million units this year. SMIA's target is to streamline and accelerate the camera module development, ultimately contributing to creation of the state-of art imaging mobile devices, independent of vendors," said Janne Haavisto, Director, Camera Entity, Nokia Technology Platforms.

"ST and Nokia have worked on this specification for more than two years and both companies are contributing significant intellectual property into SMIA," said Marc Vasseur, General Manager of ST's Imaging Division. "ST has been immensely successful in this market due to best-in-class pixel performance, sensor and module development capabilities, and full ownership of the manufacturing flow. Now, the standardization of interfaces and system partitioning, via SMIA, will enable us to address significantly more opportunities in the mobile phone industry."

The demand for higher image resolution to mega pixel and beyond has prompted the need for increasing bandwidth on the interface, while keeping the pin count low and EMI consistent with mobile phone design constraints. In addition, significant cost reductions are made possible by optimizing the architecture of the camera phone as a whole, as opposed to viewing the camera as a peripheral subsystem. SMIA proposes a framework for defining the related metrics.

SMIA specifies imaging sub-element partitioning that will enable independent technology evolution and optimal design development. Based on a partitioned architecture approach, the optics and sensor will be implemented on the SMIA camera module and imaging processing will be executed, for example, by the mobile phone's main application processor engine.

From electrical interface to optical performance:

SMIA has six chapters that cover all key aspects of a camera module.

  • The electrical interface specifies the physical layer (voltage levels, pin-count, timing), data rate (up to 650Mb/sec), EMI (electro-magnetic interference) performance, and output image format.
  • The functional specification specifies frame and field formats, register maps for set-up and control and has three profiles that helps easy video usability with high resolution sensors
  • The mechanical interface proposes a family of set of modules that provide mechanical outlines specifically designed for volume manufacturing.
  • The characterization chapter provides for optical-performance metrics and sensor noise standards.
  • The reliability chapter includes environmental-test and drop-test standards
  • Finally, a software model is also provided in the SMIA specification, including reference device drivers and software architecture.
Royalty-free license

While Nokia and ST hold key patents and other intellectual property in the SMIA specification, both companies have decided to open these up to any third party and will not assert those rights against anyone implementing a fully compliant SMIA module. No fee, nor royalty, will be levied. A simple license form can be found on smia-forum.org.

Availability and other information

The full set of specification documents will be released on July 1st on the SMIA web site smia-forum.org, along with additional information.

About Nokia

Nokia is the world leader in mobile communications, driving the growth and sustainability of the broader mobility industry. Nokia is dedicated to enhancing people's lives and productivity by providing easy-to-use and secure products like mobile phones, and solutions for imaging, games, media, mobile network operators and businesses. Nokia is a broadly held company with listings on five major exchanges.

About STMicroelectronics

STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2003, the Company's net revenues were $7.24 billion and net earnings were 53 million. Further information on ST can be found at www.st.com.

For further information, please contact:

STMicroelectronics

Maria Grazia Prestini
Director, Corporate Media Relations
Tel: +41.2.29.29.69.45
Email: [email protected]

Michael Markowitz
Director, U.S. Media Relations
Tel: +1.212.821.8959
Email: [email protected]

Nokia Technology Communications
Tel. +358 7180 28244

Nokia Communications
Tel. +358 7180 34900
E-mail: [email protected]
 
www.nokia.com

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