Hawkfan68: No it means just what it says the player is waived but is recognized by the team as being injured; and if the player is not claimed from waivers the player reverts to Injured Reserve status. This then results in leaving the team with the responsibility for the injured player until the player becomes healthy and is released, or signs an injury settlement and is released, or is re-signed. Technically the player then stays in a fashion on the team roster on Injured Reserve after the player is not claimed on waivers. In that situation the player is no longer part of the 90 man roster.
In the case of RB- Person he was released with an injury settlement recognizing his injury giving him compensation and allowing him to immediately be a FA to sign elsewhere.