VIDEO SIGNAL RECORDING/REPRODUCING APPARATUS

• US 20090034941A1
• Filed: 07/30/2008
• Published: 02/05/2009
• Est. Priority Date: 07/30/2007
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Moro, Eiji, KAGEYAMA, Masahiro
• Application Number:
  US12/182,596
• Publication Number:
  US 20090034941A1
• Time in Patent Office: Days
• US Class Current: 386/354
• CPC Class Codes: G06T 3/4084 in the transform domain, e.g. fast Fourier transform [FFT] domain scaling
• CPC Class Codes: H04N 19/112 according to a given display mode, e.g. for interlaced or progressive display mode
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 19/51 Motion estimation or motion compensation
• CPC Class Codes: H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
• CPC Class Codes: H04N 19/80 Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation H04N19/635, H04N19/86 take precedence
• CPC Class Codes: H04N 5/14 Picture signal circuitry for video frequency region cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 7/0135 involving interpolation processes interpolation-based image scaling G06T3/4007; interpolation for video coding H04N19/587, H04N19/59
• CPC Class Codes: H04N 9/7921 for more than one processing mode
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8047 using transform coding

Abstract

A recording/reproducing apparatus for outputting a video achieving high resolution thereupon, while suppressing an amount of data to be recorded onto a recording medium, comprises an input unit for inputting a video signal therein, a recording medium for recording the video signal inputted, a recording/reproducing processor unit for conducting signal processing for reproducing the video signal from the recording medium and an operation control of that recording medium, an exchanger for providing an output with switching between the video signal from the input unit and the signal from the recording/reproducing processor unit, and a resolution conversion unit for producing the video signal with increasing the pixel number of the video from the exchanger.

Claims

1. A video signal recording/reproducing apparatus, comprising:

an input unit, to which a video signal is inputted;

a recording medium, which is configured to record the video signal inputted;

a recording/reproducing processor unit, which is configured to conduct signal processing, so as to record the video signal onto said recording medium, and to reproduce the video signal from said recording medium, and also an operation control of said recording medium;

an exchanger, which is configured to provide an output by exchanging between the video signal from said input unit and the signal from said recording/reproducing processor unit; and

a resolution conversion unit, which is configured to produce a video signal, increasing a number of pixels of the video signal from said exchanger.

2. The video signal recording/reproducing apparatus, as described in the claim 1, wherein said exchanger:

inputs the video signal from said input unit into said resolution conversion unit, when said recording/reproducing processor unit records the video signal from said input unit; and

inputs the video signal from said recording/reproducing processor unit into said resolution conversion unit, when said recording/reproducing processor unit reproduces the video signal recorded.

3. The video signal recording/reproducing apparatus, as described in the claim 1, wherein said resolution conversion unit produces a video signal, with increasing a number of pixels building up said video frame and also removing aliasing component therefrom, by inputting a plural number of video frames therein, and composing said plural number of video frames inputted.

4. The video signal recording/reproducing apparatus, as described in the claim 3, further comprising a display unit, which is configured to display the video signal produced within said resolution c inversion unit thereon.

5. The video signal recording/reproducing apparatus, as described in the claim 4, wherein said display unit is able to display the video signal produced by said resolution conversion unit thereon, when said recording/reproducing processor unit records the video signal from said input unit.

6. The video signal recording/reproducing apparatus, as described in the claim 1, further comprising a display unit, which is configured to display the video signal produced within said resolution c inversion unit thereon.

7. The video signal recording/reproducing apparatus, as described in the claim 1, wherein said input unit comprises an image pickup unit, and a signal processor unit, which is configured to convert the signal from said image pickup unit into a signal suitable for recording/reproducing thereof.

8. The video signal recording/reproducing apparatus, as described in the claim 1, wherein said recording medium is any one of a magnetic disk, an optical disc, and a semiconductor recording device.