Apple Inc. bought San Diego-based software writer Emotient, the Wall Street Journal reported on Jan. 7. Terms of the deal were not disclosed.

The business — which licenses core technology from the University of California, San Diego — makes an artificial intelligence product that can identify a person’s emotions using a video image of that person’s face.

Launched in 2012 by Ken Denman and Seth Neiman, Emotient has raised $8 million, closing its $6 million series B round in March 2014. Handbag LLC and Intel Capital were investors in the 2014 round. At the time the company said it was developing its products for use in the retail and health care markets. Customers have included Intel, Procter & Gamble Co., the U.S. Air Force and Yale University.

Emotient is located in the University Towne Center neighborhood. It had 20 employees in late 2013.

Officials with Emotient and Apple (Nasdaq: AAPL) did not immediately respond to media inquiries.