Ihedigbo, 28, visited the Ravens on Saturday and agreed to terms Sunday morning, according to a league source with knowledge of the situation.
Later Sunday, Ihedigbo indicated via his Twitter account that he had joined the defending
"Fresh start," Ihedigbo wrote. "God is good, honored to be a Baltimore Raven!"
The Ravens have been seeking help at safety because of injuries to
No corresponding roster move has been announced.
Ihedigbo is a 6-foot-1, 214-pounder who started a dozen games last season for the Patriots and recorded 69 tackles and one pass deflection. He's also known as a physical special-teams contributor.
For his career, which includes three seasons with the
He was a Walter Camp All-American at Massachusetts and signed with the Jets in 2008 after going undrafted.
The Ravens have also added former
Brown recorded three fumble recoveries and one interception during the preseason for Baltimore before being cut Friday.
The Ravens filled out their eight-man practice squad with former
The other practice squad players include: inside linebacker