Patent ID: 7483626
Filing Date: 2009-01-27
Classification: H04N

Abstract:
1. A portable DVD player comprising: a reading unit reading data related to a video and voice recorded on a DVD set in a main unit; a reproduced signal generation unit generating a reproduced signal that is based on the data read by the reading unit; an output selector unit toggling an output signal output to an output terminal to the reproduced signal generated by the reproduced signal generation unit or an external input signal input from a unit connected to the external input terminal depending on the state of a lock switch provided on the main unit; a display unit extracting the output signal output to the output terminal and displaying video; an image storage unit storing a specific image data; and a control unit instructing the output selector unit to output the reproduced signal to the output terminal when an operating power is fed to the main unit while the lock switch is in an exterior selection state where the external input signal is selected as an output signal to be output to the output terminal, the control unit instructing the reproduced signal generation unit to generate a reproduced signal corresponding to an OSD image indicating the exterior selection state overlaid on the specific image stored in the image storage unit, and the control unit instructing the output selector unit to output the external input signal to the output terminal once a first time period has elapsed, wherein, in case the lock switch is toggled from the interior selection state where the reproduced signal is selected as an output signal to be output to the output terminal to the exterior selection state where the external input signal is selected while an optical disc is under playback, the control unit instructs the reproduced signal generation unit to generate a reproduced signal corresponding to the OSD image indicating the exterior selection state overlaid on an image reproduced from the optical disc, wherein, in case the lock switch is toggled from the interior selection state where the reproduced signal is selected as an output signal to be output to the output terminal to the exterior selection state where the external input signal is selected while an optical disc is not under playback, the control unit instructs the reproduced signal generation unit to generate a reproduced signal corresponding to the OSD image indicating the exterior selection state overlaid on the specific image stored in the image storage unit, and wherein the control unit instructs the output selector unit to select to output the exterior input signal to the output terminal when a second period has elapsed.