Blank made the announcement Thursday while speaking at the Georgia Technology Summit at Cobb Galleria in front of 1,500 people, according to the Atlanta Journal-Constitution. He received the Technology Association of Georgia's Captain of Innovation Award.
"He's doing great and is back to work," a Falcons spokeman said.
Blank is still going through post-operative procedures and will have regular check-ups.
Blank released a statement last month that he would be undergoing treatment for prostate cancer.
"In December, I was diagnosed with a treatable form of prostate cancer," Blank said Feb. 9. "Over the last several weeks, (fiancee) Angie and I have visited a number of expert doctors and hospitals across the country to identify the best treatment options for me. I have chosen an aggressive approach that will include surgery and the overall prognosis is good.
"I'm looking forward to getting this behind me and continuing a very active lifestyle, my upcoming wedding, as well as continued active involvement in our businesses and philanthropic efforts for years to come."
The 73-year-old Blank, the co-founder of Home Depot, has owned the Falcons since 2002. He also is the owner of Atlanta United FC, a Major League Soccer expansion franchise. The Falcons and Atlanta United FC will play in the new $1.4 billion stadium that is set to open in the summer of 2017. Blank hopes Atlanta can land the Super Bowl in 2019 or 2020.
Blank is expected to attend next week's NFL owners meetings in Boca Raton, Fla.