CSR plc is a United Kingdom-based holding company. The Company is a provider of silicon, software and services for the consumer electronics market. The Company designs and develops semiconductor integrated circuits, including platforms and software focused on the five areas of its business group: Automotive Infotainment, Imaging, Voice & Music and the markets of Bluetooth Smart and Indoor Location. It operates in three segments: Voice & Music, Automotive, Consumer and Legacy. Voice & Music segment represents mono and stereo audio products. Automotive segment includes automotive and Personal Navigation Device (PND) applications. Consumer segment includes cameras, gaming, document imaging, indoor location, Bluetooth smart and other consumer applications. Its Legacy segment includes legacy home entertainment, handset connectivity and handset location. The Company�s subsidiaries include Cambridge Silicon Radio Holdings Limited and NordNav Technologies Aktiebolag.