"We think that by giving you money, you're either going to be a legitimate competitor again and give us a great return on our investment or else we're going to get our money back when we chop you up into pieces because we own you. You're on limited time to do either."
In other words, someone gave them a loan. How badly BB got shafted by that loan is determined by how desperate they were when they took it. BB either paid them in stock, which means voting power over the company's assets when / if it folds, or else they owe them money and their patent portfolio will be sold to them when BB goes bankrupt to pay the debts.