ParkerVision ( PRKR) shares last closed above $1 on July 26, although before that it last finished above the $1 mark on July 6. Company Profile: ParkerVision designs, develops and sells proprietary radio frequency technologies and products used in wireless communications products. The Jacksonville, Fla., company has 51 employees. Closing Price: 68 cents (Sept. 1) Three-Month Stock Performance: -60% Received Nasdaq Notice: Aug. 18 Management's Expected Action: ParkerVision has until Feb. 14, 2011, to regain compliance with the minimum bid price requirement. The company said it "intends to actively monitor the bid price" and "will consider all available options to regain compliance with the Nasdaq minimum bid price requirement."