WASHINGTON (AP) – Congress is getting close to approving legislation that would provide more time to seal a deal on Internet radio. The proposal will keep the emerging market from a crippling increase in copyright royalty rates. Over the weekend, the House unanimously passed a bill that would approve an agreement between Webcasters and SoundExchange, a nonprofit that collects royalties for recording copyright owners and artists from Internet radio stations. The two sides have been negotiating new royalty rates for more than a year. The talks came after the federal Copyright Royalty Board in March of 2007 dramatically increased the rates that Internet radio stations must pay artists and record labels. Internet radio stations say the new rates threaten to put them out of business.