San Diego-based TriTech Software Systems, a developer of public safety and other software for law enforcement, fire and emergency management services agencies, said Thursday that it has entered into an agreement to acquire Ortivus North America, from Ortivus AB, including both its U.S. and Canadian subsidiaries. Ortivus is a developer of electronic patient care reporting, billing, dispatch, personnel and vehicle tracking, and other products for the public safety market. TriTech said the acquisition will help it address pre-hospital care operations and administration, capabilities it previously did not offer. Financial details of the acquisition were not announced.