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US 2012/0268651 A1Published application
Process for digitizing video over analog component video cables
AssigneeNintendo Co., Ltd.
InventorJ. Mateo BAKER
Life of this patent
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Abstract
A method for efficient digital capturing of analog video signals of computer game consoles is provided. The video format of the signal is changed from 480p to 720p, without any scaling artifacts. The number of active horizontal resolution lines and active vertical resolution lines is reduced in the higher definition space, so that the output picture is a pixel-for-pixel transformed replica of the 480p image.
Claims25
A method for efficiently digitally capturing an analog video signal being outputted by a video generation system, comprising:
- a) inputting said analog video signal having a first video resolution format, a first frame rate and a first scanning mode into a video scaler device;
- b) inputting a set of commands to said video scaler device so that the scaler device transforms said analog video signal to produce an output digital video signal having a second video resolution format, a second frame rate and a second scanning mode;
- c) mixing said output digital video signal with the audio portion of said analog video signal at a computer having a video capture card, resulting in a digital video stream;
- and
- d) further processing said digital video stream so that it comprises a desired format,
- wherein said set of commands further includes a command to reduce the number of active lines in the output digital video signal from a standard number of active lines for the output digital video signal to a non-standard number of active lines for the output digital video signal.
3 more elements
An apparatus for efficiently digitally capturing an analog video signal, comprising:
- a video generation system outputting an analog video signal having a first video resolution format, a first frame rate and a first scanning mode;
- a video scaler device that receives said analog video signal;
- a terminal that transmits a set of software commands into said video scaler device so that the video scaler device transforms said input video signal into an output digital video signal having a second video resolution format, a second frame rate and a second scanning mode;
- an audio mixer device that receives the audio portion of said analog video signal and produces an analog audio output signal having increased voltage level;
- a computer having a video capture card that combines said output digital video signal having said second video resolution format, said second frame rate and said second scanning mode with said analog audio output signal to produce a digital video stream;
- and
- a software video processing platform that processes said digital video stream so that it comprises a desired format,
- wherein said set of software commands further includes a command to reduce the number of active lines in the output digital video signal from a standard number of active lines for the output digital video signal to a non-standard number of active lines for the output digital video signal.
5 more elements
A video capture method comprising:
- (a) sampling a 480p60 video signal at a predetermined frame rate;
- (b) changing a number of lines of horizontal resolution active within a 1280×720 space to squeeze the output picture down into an active space that reflects substantially a same number of pixels as the original 480p60 image;
- (c) choosing a number of lines of vertical resolution to shrink the image into the active space;
- and
- (d) capturing the resulting video stream,
- wherein the number of lines in the active space are reduced from a standard number of lines in the active space to a non-standard number of lines in the active space, thereby preventing scaling artifacts in the resulting video stream.
3 more elements
Dependencies are inferred from the claim text.