iBiquity Digital wants to spread the news about digital radio. The company licenses in-band on-channel (IBOC) technology, branded as HD Radio, that allows AM or FM radio stations to transmit digital signals on the back of their normal analog signals. Customers include broadcast companies and more than 1,000 radio stations nationwide. The company also licenses HD Radio technology to home and car stereo receiver manufacuters including Boston Acoustics and Sanyo. iBiquity Digital has offices in Columbia, Maryland; Basking Ridge, New Jersey; and Pontiac, Michigan.