He signed the first of two ten-day contracts with the Knicks on Feb. 27 and then signed for the remainder of the season in late March. He appeared in 19 games for New York, averaging 2.1 points per game in 7.8 minutes.
The veteran also played on the Knicks' summer league team.
With Brown off of the roster, the Knicks are down to eight guards (including free agent Toure' Murry).
Phil Jackson and Steve Mills both said earlier this month that the roster needs better balance, mentioning the abundance of guards on the roster.
Sources say that the Knicks discussed internally their options regarding potential trades of Iman Shumpert, J.R. Smith or Shane Larkin to clear space in the back court. The team had been considering this as recently as last week.