US Patent 7424626 Laptop computer recharging using Ethernet connection

One embodiment disclosed relates to a laptop computer system including a display casing, having display circuitry and a display screen, and a main computer casing coupled to the display casing. The main computer casing includes a battery power source, a charging regulator, and an Ethernet-type connector. The battery power source is coupled to a motherboard switching regulator. The charging regulator is coupled to the battery power source and configured to recharge the battery power source. The Ethernet-type connector coupled to the charging regulator and configured to provide power thereto.