Boca Raton-based tech firm LinguaSys is seeking up to $1.5 million in new crowdfunding through Miami-based EarlyShares. LinguaSys develops software for language processing – understanding, analyzing and translating digital content in multiple languages. The company, headed by CEO Brian Garr, previously raised $1 million in early funding from a group that included well-known entrepreneur Mark Cuban, owner of the Dallas Mavericks. RELATED CONTENT: LinguaSys adds Korean, Nordic languages The company…