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Zoomed Replay of Recorded High Definition Television

IP.com Disclosure Number: IPCOM000022188D
Publication Date: 2004-Mar-01
Document File: 2 page(s) / 28K

Publishing Venue

The IP.com Prior Art Database

Related People

Robert L. Hardacker: INVENTOR [+3]

Abstract

Replaying recorded high definition television from a standard VCR with DRC like digital zoom of the playback to show a full screen image.

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         Sony Corporation

         Sony Electronics Inc.

         IPD #50R4810

Title:

Zoomed Replay of Recorded High Definition Television

Abstract:

Replaying recorded high definition television from a standard VCR with DRC like digital zoom of the playback to show a full screen image.

Inventors:

Thomas P. Dawson

Robert L. Hardacker

Chris Read

Description of the Invention:

1.      Many High Definition Television (HDTV) systems allow recording to a standard VCR for later replay. The recorded image is made in standard definition mode utilizing a "letter box" format. This "letter box" format fits the 16 by 9 HDTV aspect ratio to a standard 4 by 3 television display by placing black bars at the top and bottom of the screen. Only the center portion of the screen shows the recorded material (see figure 1).

When a standard definition signal is shown on an HDTV system it corrects for the aspect ratio difference by placing black bars on the left and right of the screen where only the center of the screen shows the displayed material (see figure 2).

Recording of HDTV to a standard VCR results in a "letter boxed" standard definition recording. When that is then replayed on the HDTV display it is then shown with black bars on all sides resulting in a "miniature" version of the original HDTV program being shown (see figure 3).

Consumers will not appreciate having their recorded HDTV material played back as a miniature "letter box" on their HDTV display.

2.      This invention may use one or a combination of several existing resolution enhancement technologies to perform a digital zoom on the material being played back from the VCR in order to watch the ma...