cambridge silicon radio limited

CSR plc

Public limited company
Traded as LSE: CSR
Industry Semiconductors
Communications
Fate Acquired by Qualcomm
Successor Qualcomm Inc.
Founded 1998 ; 21 years ago ( 1998 ) (as Cambridge Silicon Radio)
Defunct 14 August 2015 ( 2015-08-14 )
Headquarters Cambridge, England, U.K.
Ron Mackintosh (Chairman)
Joep van Beurden (CEO)
Will Gardiner (CFO)
Products Fabless semiconductor that included connectivity, audio, imaging and GPS chips
Revenue US$ 774.8 million (2014) [1]
US$ 97.0 million (2014) [1]
US$ 96.8 million (2014) [1]
Website csr.com

CSR plc (formerly Cambridge Silicon Radio) was a multinational fabless semiconductor company headquartered in Cambridge, United Kingdom. Its main products were connectivity, audio, imaging and location chips. CSR was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Qualcomm in August 2015. Under Qualcomm’s ownership, the company was renamed Qualcomm Technologies International, Ltd.

Contents

History [ edit ]

The company was founded in 1998 and split away from Cambr >[2] It was first listed on the London Stock Exchange in 2004. [3]

In 2005 the company acquired Clarity Technologies, a leading clear voice capture (CVC) business [4] and UbiNetics, a 3G wireless (WCDMA/UMTS/HSDPA) technology company. [5] In 2007, CSR acquired Nordnav, a Swedish-based GPS software company, and CPS, a Cambr >[6]

In February 2009, CSR announced it was merging with SiRF, the biggest global supplier of GPS chips, in a share deal worth $136 million; [7] in July 2010, CSR announced the acquisition of Belfast-based APT Licensing Ltd. (APT) and its aptX audio technology [8] and in February 2011, CSR announced it was merging with Zoran, a v >[9]

In May 2012, CSR acquired Direct Digital Feedback Amplifier (DDFA) technology, a proprietary, highly scalable digital >[10] in June 2012, CSR announced that it had acquired the MAPX (formerly MAP-X) audio product line from Tr >[11] and in July 2012, Samsung Electronics agreed to acquire CSR’s mobile phone connectivity (Bluetooth and Wi-Fi) and location (GPS/GNSS) businesses and associated IP for US$310 million (£198 million). [12] As part of the deal Samsung acquired a stake of 4.9% in CSR. [12]

In June 2014, CSR acquired the people and technology of Reciva, a networked audio streaming platform, for US$5 million [13] and in October 2014, the acquisition of CSR by Qualcomm for $2.5 billion was agreed. [14] The transaction was completed in August 2015. [15]

Products [ edit ]

CSR’s products included platform solutions for Bluetooth, GPS, FM broadcasting, Wi-Fi, audio, imaging, and ARM processors. [16] After the Zoran merger, CSR also made digital imaging products based on the MIPS architecture. [17] [18]

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