Two years ago, Woods didn't play for nine weeks while coping with the death of his father. He returned to competition in the U.S. Open at Winged Foot and missed the cut in a major for the only time in his career.
"That was a totally different mental situation than I am now," Woods said Monday. "Even when I came back for the Open, I probably wasn't ready to play yet.
"This time around, it's totally different," he added. "Everything in my life is doing great. I'm just trying to get the leg organized enough to where I can play, and hopefully, I can play before. If not -- if I can't play before -- then hopefully, at the Open."
Woods had surgery on his left knee April 15 for the second time in five years, this time to clean out some cartilage. He has not played since finishing second at the Masters Tournament, three shots behind Trevor Immelman.
Doctors said the recovery would be four to six weeks, and three weeks in Woods said his rehabilitation was going well.
"I'll tell you what, I'm getting sick and tired of riding the bike," he said.
Woods spoke on a video conference to promote the BMW Championship, which he won last year on his way to capturing the FedEx Cup.
The tournament will be held Sept. 4-7 at Bellerive Country Club, where Woods has played only a practice round.
He has been able to chip and putt, and Woods said he hopes to work his way through the bag to hit fuller shots as he regains strength. But he is in no shape to play now, except for a short game contest.
"I couldn't compete against those guys, unless we were playing a putt-putt course," he said.