By Roberta Rampton and Alexei Oreskovic WASHINGTON/SAN FRANCISCO (Reuters) – The White House will lay out ideas this week for protecting U.S. consumers privacy in an era in which the ubiquitous use of computers and mobile phones provides a constant data feed on individuals. But after a 90-day review of big data, the White House is expected to suggest ways to encourage companies to protect privacy and identify areas for further study, rather than calling for a legislative overhaul. The Obama administration is treading carefully to avoid further antagonizing major technology companies and international allies angered by the governments data surveillance programs. The review was led by John Podesta, senior counselor to President Barack Obama, who previously worked on tech privacy issues as a Capitol Hill staffer and as an aide to President Bill Clinton.