Patent ID: 7640442
Filing Date: 2009-12-29
Classification: H04N

Abstract:
1. A multi-function terminal having multiple operation modes, comprising: a power source in a main body for supplying electric power to said multi-function terminal, said power source in said main body being provided at said multi-function terminal; interface means for receiving electric power supplied from outside of said multi-function terminal; terminal external power supply detecting means for detecting the electric power supplied via said interface means; electric power switching means for switching between electric power supplied from said power source in said main body and electric power supplied via said interface means from outside of said multi-function terminal; origination control means for originating a call to the public line; and control means for controlling said electric power switching means to supply electric power via said interface means from outside of said multi-function terminal to said origination control means for originating a call to the public line, if said terminal external power supply detecting means detects electric power supplied via said interface means from outside of said multi-function terminal and detects no electric power supplied from said power source in said main body.