(Reuters) - The company started by Andy Rubin, the architect of Google Inc's Android mobile business, to support and advice device-making tech startups has raised $48 million in equity financing, according to a regulatory filing. The company, Playground Global LLC, listed Rubin as a managing director, according to the filing. Rubin, who was also head of head of Google's nascent robotics effort, stepped down from the company in October after a nine-year stint during which he built Android into a free, open-source software platform. Playground Global's investors included Google, Hewlett-Packard Co, Hon Hai Precision Industry Co, and other technology companies, the Wall Street Journal reported, citing an interview with Rubin.

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