Samsung buys Silicone Valley-based memory maker Grandis, beefing up its patent portfolio in the process. FULL STORY >

Search giant Google has bought facial recognition software firm PittPatt. FULL STORY >

Swiss peripheral maker Logitech has purchased premier mobile visual communications provider Mirial, to extend LifeSize video calling to mobile users. FULL STORY >

CPU maker Intel will be purchasing semiconductor company Fulcrum Microsystems, which specialises in Ethernet switch silicone. FULL STORY >

HTC is purchasing its own graphics chip maker in a move that will also greatly expand its patent portfolio. FULL STORY >

Popular social networking site Twitter snaps up TweetDeck in a multimillion dollar acquisition. FULL STORY >

GPU maker Nvidia plans to improve its position in the expanding mobile market by purchasing a baseband and RF technology company Icera. FULL STORY >

YouTube founders Chad Hurley and Steve Chen purchase two tech companies in as many weeks, with the latest purchase being Tap11.com. FULL STORY >

In the second part of this week's Tech News Round-up: Samsung reaches an app download milestone, whilst Motorola makes moves into the Smart TV segment. FULL STORY >

Google buys a video technology company to enhance YouTube videos with below par quality. FULL STORY >

Intel buys an Egyptian software design firm to boost its mobile communications portfolio, with a specific focus on 4G development. FULL STORY >

IP voice- and video calling operator Skype announce that it has completed the purchase of mobile video software company Qik. FULL STORY >

Canadian smartphone manufacturer Research In Motion has welcomed mobile user interface company The Astonishing Tribe to its BlackBerry team. FULL STORY >

NAVTEQ has bought PixelActive to help the company make the shift from 2D to 3D in its mapping technology. FULL STORY >

Shares of Sony rose this week following reports and speculation over a possible Apple takeover bid for the company. FULL STORY >