The Cambridge Phenomenon: 50 years of innovation and enterprise. ^ "Philip O'Donovan - Royal Academy of Engineering".Archived from the original (PDF) on 2 April 2015. Prestige Technology Park II, Bangalore, India.Burlington, Massachusetts, United States.Legacy Building, Catalyst Inc, Belfast, Northern Ireland, UK.Bristol and Bath Science Park, Bristol, England, UK.Unit 400, Cambridge Science Park, Cambridge, UK.Selwyn House, Cambridge Business Park, Cambridge, UK.Trinity House, Cambridge Business Park, Cambridge, UK.Churchill House, Cambridge Business Park, Cambridge, UK.Products Ĭhurchill House, part of CSR's corporate campus at the Cambridge Business Park The transaction was completed in August 2015. In June 2014, CSR acquired the people and technology of Reciva, a networked audio streaming platform, for US$5 million and in October 2014, the acquisition of CSR by Qualcomm for $2.5 billion was agreed. As part of the deal Samsung acquired a stake of 4.9% in CSR. In May 2012, CSR acquired Direct Digital Feedback Amplifier (DDFA) technology, a proprietary, highly scalable digital Class-D audio amplifier technology in June 2012, CSR announced that it had acquired the MAPX (formerly MAP-X) audio product line from Trident Microsystems, Inc 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). (APT) and its aptX audio technology and in February 2011, CSR announced it was merging with Zoran, a video and imaging technology company. In February 2009, CSR announced it was merging with SiRF, the biggest global supplier of GPS chips, in a share deal worth $136 million in July 2010, CSR announced the acquisition of Belfast-based APT Licensing Ltd. In 2007, CSR acquired Nordnav, a Swedish-based GPS software company, and CPS, a Cambridge-based GPS software company producing Enhanced GPS in partnership with Motorola. In 2005 the company acquired Clarity Technologies, a leading clear voice capture (CVC) business and UbiNetics, a 3G wireless ( WCDMA/ UMTS/ HSDPA) technology company. It was first listed on the London Stock Exchange in 2004. The founding directors, who were all at Cambridge Consultants at the time were Phil O'Donovan, James Collier and Glenn Collinson.
The company was founded in 1998 and split away from Cambridge Consultants as Cambridge Silicon Radio or CSR in 1999.
Under Qualcomm's ownership, the company was renamed Qualcomm Technologies International, Ltd. 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. Its main products were connectivity, audio, imaging and location chips. CSR plc (formerly Cambridge Silicon Radio) was a multinational fabless semiconductor company headquartered in Cambridge, United Kingdom.
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