US Patent 9609057 Technique for synchronized content sharing

Multiple media devices (101-104) at different locations can advantageously synchronize shared content by including chronology information with each piece of content. Each media device maps received content pieces (102, 104) from other devices, along with content pieces (108, 110) on the device itself to a common time line (106). The mapped content, when displayed, will depict the earliest content earliest on the time line and the latest content piece appears latest on the time line.