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US 7,626,638 B2Granted
Apparatus and method for processing video signal
AssigneeKabushiki Kaisha Toshiba
InventorsKota Mitsuya, Hideo Tsurufusa
Life of this patent
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Abstract
According to one embodiment, an input analog video signal is digitized, and an OSD signal to which a second scaling process is performed is added to the digital video signal to which a first scaling process is performed. At this point, display modes of the digital video signal and the OSD signal are changed by causing pieces of scaling data, supplied for the first and second scaling processes, to be variable based on a predetermined operation.
Claims9
A video signal processing apparatus comprising:
- a processing unit configured to perform a decoding process to an inputted digital video signal to add a digital OSD signal, the digital OSD signal being set for display on a panel having the particular number of pixels;
- a conversion unit configured to digitize an inputted analog video signal;
- a scaling unit configured to selectively perform a first scaling process to the digital video signals outputted from the processing unit and the conversion unit while performing a second scaling process to the OSD signal, the scaling unit adding the OSD signal to which the second scaling process is performed to the digital video signal to which the first scaling process is performed outputted from the conversion unit;
- and
- a scaling data change unit configured to change display modes of the digital video signal and the OSD signal by causing pieces of scaling data to be variable based on a predetermined operation, the pieces of scaling data being supplied for the first and second scaling processes.
2 more elements
A video signal processing method comprising:
- a first step of performing a decoding process to an inputted digital video signal when the digital video signal is inputted, adding a digital OSD signal set for display on a panel having the particular number of pixels to the digital video signal, and performing a first scaling process and outputting the digital video signal;
- a second step of digitizing an inputted analog video signal to perform the first scaling process when the analog video signal is inputted, and adding the OSD signal to which a second scaling process is performed;
- and
- a third step of changing display modes of the digital video signal and the OSD signal by causing pieces of scaling data to be variable based on a predetermined operation, the pieces of scaling data being supplied for the first and second scaling processes.
1 more element
A broadcasting receiver comprising:
- a receiving unit configured to receive a digital or analog broadcasting signal;
- a generation unit configured to generate a digital or analog video signal from the digital or analog broadcasting signal received by the receiving unit;
- a processing unit configured to perform a decoding process to the digital video signal, generated by the generation unit, to add a digital OSD signal to the digital video signal, the digital OSD signal being set for display on a panel having the particular number of pixels;
- a conversion unit configured to digitize an inputted analog video signal;
- a scaling unit configured to selectively perform a first scaling process to the digital video signals outputted from the processing unit and the conversion unit while performing a second scaling process to the OSD signal, the scaling unit adding the OSD signal to which the second scaling process is performed to the digital video signal to which the first scaling process is performed outputted from the conversion unit;
- and
- a scaling data change unit configured to change display modes of the digital video signal and the OSD signal by causing pieces of scaling data to be variable based on a predetermined operation, the pieces of scaling data being supplied for the first and second scaling processes.
4 more elements
Dependencies are inferred from the claim text.