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CSR's BlueCore3-MM adds DSP to Advanced Jabra Bluetooth Headset.


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CSR PLC (LSE:CSR.L), world leader in Bluetooth wireless technology, today announced that Jabra, a leading headset maker, has selected CSR's BlueCore(TM)3-Multimedia single-chip for the latest BT800 Bluetooth headset. The Jabra BT800 is one of the most advanced Bluetooth headsets available today, offering a backlit display, call vibrate feature, variable ringtones, a jog wheel for volume control during calls and menu scrolling in standby mode. Most significantly, the Jabra BT800 employs the digital signal processing (DSP) technology in BlueCore3-MM for improved sound quality and for noise reduction. The Jabra BT800 is currently shipping in Europe, the Middle East and Africa at 149 Euros and is expected to roll out to the US and Asia Pacific markets in the coming months.

CSR's BlueCore3-MM complies with both the v1.1 and v1.2 Bluetooth standards allowing the Jabra BT800 to connect to any Bluetooth-enabled mobile phone on the market. BlueCore3-MM offers: eSCO (enhanced Synchronous Connection Oriented) voice channels to ensure that no part of the voice transmission is lost due to corruption of data packets; and adaptive frequency hopping (AFH) which further minimises potential interference from other radio devices.

The on-chip DSP, which is integrated into the CSR Bluetooth chipset, has given the Jabra engineers the opportunity to make great advancements in the reduction of background noise .The Jabra BT800 will change volume settings according to the surrounding conditions where the call is made. Therefore, when talking in a noisy street or on a train, the headset will automatically adjust the volume of the call to counteract any ambient noise.

"Jabra and CSR have worked together on a number of projects bringing feature-rich Bluetooth headsets to accommodate the rapidly evolving mobile phone market," commented Niels-Henrik Valentin Knudsen, senior product manager, Jabra. "CSR's BlueCore technology helps us to continually push the boundaries of Bluetooth headset design and offer our customers premium quality products with innovative design."

Luke D'Arcy, Product Manager, CSR added, "Sound quality and battery consumption remain the most important features of a Bluetooth headset. The integrated DSP of BlueCore3-MM combined with the standard features of v1.2 Bluetooth to ensure optimum sound quality without signal degradation, and very low power consumption. The Jabra BT800 offers an attractive package of quality and features to satisfy the changing design and functionality demands placed on the next generation of Bluetooth headsets."

About CSR

CSR plc (Cambridge Silicon Radio) is a leading provider of single-chip radio devices for short-range wireless communication. CSR offers developed hardware/software solutions for Bluetooth based around BlueCore, a fully integrated 2.4 GHz radio, baseband and microcontroller. BlueCore features in over 60 per cent of all qualified Bluetooth enabled products and modules listed on the Bluetooth website with industry leaders including Nokia, Dell, Panasonic, Sharp, Motorola, IBM, Apple, NEC, Toshiba, RIM and Sony using BlueCore devices in their range of Bluetooth products.

CSR is now producing its fourth generation BlueCore devices to support the recently released Enhanced Data Rate standard. In November 2004 CSR announced the first single chip IEEE802.11a, b, g embedded solution specifically targeting the mobile phone and consumer electronics markets.

CSR has its headquarters in Cambridge, UK, and offices in Richardson, Texas, USA; Tokyo, Japan; Seoul, Korea; Taipei, Taiwan; Aalborg, Denmark; and Lund, Sweden.

More information can be found at and the partner web site

More information about Bluetooth technology can be found on the SIG web site at
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Publication:Business Wire
Geographic Code:1USA
Date:Mar 16, 2005
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