Sigmatel Licenses Parthus Mediastream Platform to Power Next Generation Mobile Internet Audio and Home Entertainment Applications

Dublin, Ireland - August 13, 2001 - Parthus Technologies plc
(Nasdaq: PRTH; LSE: PRH), a leading developer of platform-level
intellectual property (IP), today announced that SigmaTel, a provider of
system-level, mixed-signal integrated circuit solutions for the audio
codec, audio decoder and wireless infrared markets has licensed Parthus'
MediaStreamTM platform to power its next generation audio decoder
integrated circuit for portable audio and home entertainment applications,
including MP3-style players.

As part of the agreement, SigmaTel will deploy Parthus' MediaStream
platform, which incorporates DSP, associated peripherals and software on a
single chip, to deliver ultra-high quality 3D digital audio for the MP3,
WMA and AAC standards. SigmaTel will target its single chip audio
integrated circuit into the rapidly evolving portable audio (including MP3
players, cell phones, PDAs and digital cameras) and home entertainment

"High-quality audio is an essential component of tomorrow's mobile
device," said Ron Edgerton, CEO and president of SigmaTel. "By utilizing
Parthus' MediaStream DSP, we can provide our customers with a proven audio
technology and a retargetable, field-upgradeable solution that has been
designed specifically for the portable environment."

"SigmaTel is a proven leader in the deployment of audio chips to the PC
market as well as a variety of other applications markets," said Kevin
Fielding, president of Parthus. "Our agreement furthers underpins our
MediaStream multimedia franchise and Parthus' leadership position in MPEG
technologies as noted by the most recent Gartner Dataquest industry

About MediaStream

MediaStream is an IP Platform providing a complete media processing
solution for personal mobile devices. The platform is a fully synchronous,
synthesizable, scan testable, soft IP, DSP based solution. It offers a
complete IP solution for audio, video (graphics and still / moving image),
speech recognition and text to speech applications and with a key
advantage of reducing time-to-market and development cost for
semiconductor and OEM manufactures targeting the multimedia market.
Licensees of the MediaStream platform benefit from the culmination of over
20-person year's development already invested by Parthus. In addition, a
state-of-the-art tool and development board environment to significantly
reduction in customers design cycles.

About SigmaTel

SigmaTel, a provider of integrated circuit (IC) design, is converting
the real world into a digital experience with system-level, mixed-signal
solutions for the audio codec, audio decoder and wireless infrared
markets. Since its inception, SigmaTel has built a strong reputation as an
innovative developer of mixed-signal ICs, by being first to market with
several highly integrated designs. The privately held company is committed
to providing customers with high performance products along with superior
customer service and is based in Austin, Texas. For more information,
visit SigmaTel's Web site at

About ParthusCeva, Inc.

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