New Nucleus USB Class Drivers Support Streaming Audio/Video Applications

7/28/2005 - Accelerated Technology, a Mentor Graphics division (Nasdaq: MENT), announced two new class drivers for the Nucleus(r) USB software, which provides Universal Serial Bus (USB) support for the Nucleus Real-Time Operating System (RTOS). The Nucleus USB Audio class driver and the Nucleus USB Video class driver are designed so that developers can quickly and easily build USB-compliant devices that incorporate streaming audio and/or video functionalities.

Multimedia presents a variety of new problems for developers of embedded devices including streaming large amounts of real-time, higher quality audio and video data over connected devices. Because USB offers a plug-and-play standard interface, higher data transfer rate and greater flexibility in terms of hot swapping, it is rapidly being adopted by embedded device manufacturers to develop today's multimedia devices. The introduction of USB audio and video class specifications, which standardized transport and synchronization mechanisms, allows many audio and video devices to become fully interoperable via USB. As a result, embedded device manufacturers no longer need to tackle the complex and time-consuming task of developing and installing custom device drivers.

The Nucleus USB Audio class driver and the Nucleus USB Video class driver enable developers to create a wide range of complex, multimedia-based devices. By using USB for audio or video streaming , a developer needs to implement only a single Nucleus USB class driver instead of a separate driver for each device. Typical applications in which developers use the Nucleus USB Audio class driver include voice telephony, audio playback and recording. Applications that use the Nucleus USB Video class driver include simple webcams, digital camcorders, digital video cameras and TV tuners.

Availability and Pricing
The Nucleus embedded software is licensed with source code and without royalty fees. Available now, licenses for the Nucleus USB software start at U.S. $14,995 and licenses for the class drivers begin at U.S. $2,995. The new Nucleus USB Audio class driver and the Nucleus USB Video class driver have been released for use with the Nucleus USB host stack, which is USB 1.1 and USB 2.0 compliant, and support the isochronous data transfer type for media streaming. The Nucleus USB Audio class driver and the Nucleus USB Video class driver both adhere to the USB audio and video class specifications.

For more information, please contact Accelerated Technology at 800-468-6853 or

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $700 million and employs approximately 3,850 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site:

Accelerated Technology, a division of Mentor Graphics Corporation, is located in Mobile, Alabama and has engineering sites, sales offices and distributors worldwide. As a leading provider of royalty-free, embedded real-time operating system (RTOS) software, Accelerated Technology helps developers accelerate product time-to-market in a wide range of embedded device applications. Its comprehensive Nucleus RTOS includes a high-level design UML suite, graphical prototyping tools, kernels, middleware and Eclipse-based development tools. For more information, please visit or e-mail us at

Mentor Graphics, Accelerated Technology and Nucleus are registered trademarks of Mentor Graphics Corporation.

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