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

Jul 01, 2004

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

Helsinki and Geneva, July 1, 2004 - Nokia and STMicroelectronics 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 www.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 help 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 www.smia-forum.org.

The original press release can be found here.

Explore further: NSA winds down once-secret phone-records collection program

Related Stories

Filmmakers look to Twitter, Facebook for stars

7 hours ago

Looking for a tattooed demon to be killed by an undercover virgin in your sex club? Well, as any good horror film producer knows, the best place to look these days is on Facebook and Twitter.

Recommended for you

NSA winds down once-secret phone-records collection program

4 hours ago

The National Security Agency has begun winding down its collection and storage of American phone records after the Senate failed to agree on a path forward to change or extend the once-secret program ahead of its expiration ...

Uber drivers fined in Hungary

5 hours ago

The Hungarian tax authority fined Uber drivers in its first probe against the ride-sharing service which the economy ministry said Saturday "ignores passenger safety" and must be made to follow regulations.

Architects to hatch Ecocapsule as low-energy house

May 23, 2015

Where people call home depends on varied factors, from poverty level to personal philosophy to vanity to community pressure. Ecocapsule appears to be the result of special factors, a team of architects applying ...

Apple may deliver ways to rev up the iPad, report says

May 23, 2015

MacRumors last month said that the latest numbers from market research firm IDC's Worldwide Quarterly Tablet Tracker revealed Apple stayed on as the largest vendor in a declining tablet market. The iPad ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.