The Blackhawks also assigned goaltender Alexander Salak to Rockford in the American Hockey League on Monday.
The 29-year-old Emery has played for Ottawa, Philadelphia and Anaheim in seven seasons in the NHL. He spent last season with the Ducks, going 7-2-0 during the regular season with a 2.28 goals against average in 10 games. He also appeared in six postseason games with Anaheim.
Chicago opens the season at Dallas on Friday.