PHILADELPHIA (AP) — Bill Cosby’s lawyers have asked a Pennsylvania court to overturn the actor’s conviction and three- to 10-year prison sentence because of what they call a string of errors in his sex assault case. The defense motion argued that trial Judge Steven O’Neill erred in declaring Cosby a sexually violent predator who must be imprisoned to protect the community. Lawyers called the sentence more punitive than necessary, given the standard two- to three-year guideline range for the crime and the fact Cosby is 81 and blind.