Non-interlace television for multi color standards

Assignee: Sony Corp

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Filing: 1991-10-22

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Granted: —

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Expires: 2011-10-22

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Abstract

Abstract A video signal processing circuit used for such a non-interlace television comprises an interfield interpolation circuit for carrying out interfield interpolation by using a video signal before one field of an input video signal to output interpolated line video signals corresponding to respective interline positions in one field, an intrafield interpolation circuit for carrying out intrafield interpolation by using video signals of a plurality of lines of the input video signal to output interpolated line video signals corresponding to respective interline positions in one field, a motion detector for detecting motion of the input video signal, a weighting adder for implementing weighting to an output signal from the interfield interpolation circuit and an output signal from the intrafield interpolation circuit in accordance with a signal from the motion detector to add the weighted output signals, a sequential scan converter for carrying out conversion into a sequential scanning signal on the basis of the input video signal and an output signal from the weighting adder, and a controller for controlling at least the interfield interpolation means in accordance with a television standard system of the input video signal, thereby making it possible to lessen disturbance, e.g., deterioration in the picture quality, etc. occurring in the interlaced scanning.

Inventors

👤 Hiroyuki Kawashima
👤 Hiroyuki Kita
👤 Shuichi Obana
👤 Masaharu Tokuhara

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-09 19:10

CPC Classifications

H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/012; H04N9/00; H04N9/64; H04N9/642

Claims Analysis

Total Claims: 5

Claim 1

Independent Claim 78 words

A non-interlace television for multi-color standards comprising; a field memory (2) connected to an input terminal (1) for a video signal, a line memory (3) connected to said input terminal (1) for the video signal, a motion detector (4) connected to said input terminal (1) for the video signal, and for detecting motion of an image of said video signal inputted thereto, and memory control means (6) for controlling said field memory (2) and said line memory (3).

Claim 2

Dependent Claim 34 words

A non-interlace television for multi-color standards as claimed in claim 1, which further comprises a scan converter (14) for converting scanning frequency to a frequency greater than a frequency of said input video signal.

Claim 3

Dependent Claim 35 words

A non-interlace television for multi-color standards as claimed in claim 1 or 2, which further comprises a first adder (8) for adding said input video signal and an output signal from said line memory (3).

Claim 4

Dependent Claim 37 words

A non-interlace television for multi-color standards as claimed in claim 3, which further comprises a second adder (12) for adding an output signal from said field memory (2) and an output signal from said first adder (8).

Claim 5

Dependent Claim 55 words

A non-interlace television for multi-color standards as claimed in claim 4, which further comprises ratio control means (7,11) connected between said field/line memories (2,3) and said second adder (12), and for controlling both a ratio of said output signal from said field memory (2) and that of said output signal from said first adder (8).

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