Siri Co-Founder Adam Cheyer Left Apple in June

Another former Siri executive has left Apple. Adam Cheyer, who co-founded the voice recognition software company prior to its acquisition by Apple in 2008, has left the iPhone maker. Sources in position to know tell AllThingsD that Cheyer resigned back in June to pursue other projects. Cheyer is the second Siri executive to leave Apple in the past year, following CEO Dag Kittlaus, who left in October of 2011. News of Cheyer’s departure was first reported by Bloomberg. Apple declined comment.