"The fundamental information that Matt provided was consistent with what we disciplined the Patriots for last fall," said Goodell, who didn't anticipate punishing the team any further.
The most scandalous part of the tapes shown before Goodell's news conference had nothing to do with stealing signals -- it was several minutes of close-ups of San Diego Chargers cheerleaders performing during a 2002 game.
Walsh did not comment after leaving the NFL offices to travel to Washington to meet with Sen. Arlen Specter. Specter, the senior Republican on the Senate Judiciary Committee, has been critical of the NFL's handling of the investigation.
Patriots spokesman Stacey James said the team was preparing a statement.
The Spygate investigation began after the NFL confiscated tapes from a Patriots employee who recorded the New York Jets' defensive signals from the sideline during the 2007 opener. New England coach Bill Belichick was fined $500,000, while the team was fined $250,000 and forced to forfeit its 2008 first-round draft choice.
Walsh had no knowledge of anybody with the Patriots taping the Rams' final walkthrough before the 2002 Super Bowl, Goodell said. The Boston Herald reported in February that an unidentified employee illegally taped the walkthrough before New England, a two-touchdown underdog, upset St. Louis 20-17.
Walsh was in the stadium in his Patriots gear setting up equipment during the walkthrough, Goodell said. What did happen, said NFL attorney Gregg Levy, was that then-New England assistant Brian Daboll later asked Walsh what he saw. Walsh said he told Daboll that running back Marshall Faulk was returning kicks and responded to the coach's question about the Rams' use of tight ends in their formations.
The NFL is looking into that allegation, said Levy, who attended Tuesday's meeting.
Goodell said Walsh had no information about any other spying by the Patriots.
"There was no bugging of locker rooms," Goodell said. "There was no manipulation of communication systems. There was no crowd noise violations anywhere that he was aware of. No miking of players to pick up opposing signals or audibles."
Walsh did share two potential violations of league rules unrelated to Spygate, Goodell said. A player on injured reserve practiced when he wasn't allowed to in 2001. Walsh also scalped eight to 12 Super Bowl tickets for Patriots players over two seasons. The NFL will investigate both claims.
Last week, Walsh sent the NFL eight videotapes of the Patriots recording playcalling signals. The tapes included signals by coaches of five opponents in six games from 2000-02.
Walsh worked for New England from 1997 to 2003. His name surfaced just before this year's Super Bowl, nearly five months after the Patriots were sanctioned.
After more than two months of negotiations, lawyers for the league and Walsh finally agreed April 23 to terms that would allow him to talk with Goodell. They include an agreement by the Patriots not to sue Walsh and to pay his legal expenses and his airfare to New York from Hawaii, where he is now a golf pro.
Specter, from Pennsylvania, met with Goodell in February after raising the possibility of congressional hearings if he wasn't satisfied with the commissioner's answers about the handling of the investigation.
Walsh stood stone-faced as his lawyer, Michael Levy, addressed a throng of about 50 media members outside the NFL offices after their meeting with Goodell.
"Out of respect for Sen. Specter, neither Mr. Walsh nor I will speak with the media prior to meeting with the Senator," Levy said.
They then climbed into a car to begin their trip to Washington.