JP2000036939A5

JP2000036939A5 -

Info

Publication number: JP2000036939A5
Application number: JP1998204157A
Authority: JP
Filing date: 1998-07-21
Publication date: 2005-10-20

Description

【００１０】
【課題を解決するための手段】
本発明に係る画像記録装置は、入力画像信号をインターレース方式の画像データとして取り込み、所定の圧縮率で圧縮し、所定の搬送速度で記録媒体を搬送して記録する第１の記録モードと、前記第１の記録モードの少なくとも圧縮率を変更して、前記第１の記録モードより長時間の記録時間を得る第２の記録モードと、前記入力画像信号をプログレッシブ方式の画像データとして取り込み前記第２の記録モードと同等の圧縮率で圧縮し、記録媒体に記録する第３の記録モードとに対応可能な画像記録装置であって、記録モードを設定する記録モード設定手段と、前記入力画像信号をサンプリングするサンプリング手段と、前記サンプリング手段によりサンプリングされた画像データを圧縮する画像圧縮手段と、前記記録モード設定手段により設定された記録モードに応じて前記サンプリング手段におけるサンプリング周波数を設定するサンプリング周波数制御手段と、前記記録モード設定手段により設定された記録モードに応じて前記画像圧縮手段における圧縮率を設定する圧縮率制御手段と、前記画像圧縮手段により圧縮された画像データを記録する記録手段とを有することを特徴とする。 0010
[Means for solving problems]
The image recording apparatus according to the present invention has a first recording mode in which an input image signal is taken in as interlaced image data , compressed at a predetermined compression rate, and a recording medium is conveyed and recorded at a predetermined transfer speed. A second recording mode in which at least the compression rate of the first recording mode is changed to obtain a longer recording time than the first recording mode, and the second recording mode in which the input image signal is captured as progressive image data . compressed in the recording mode and the compression ratio of the same or the like, an image recording apparatus capable of coping with the third recording mode that records on a recording medium, a recording mode setting means for setting the record mode, the input Sampling means for sampling an image signal, image compression means for compressing image data sampled by the sampling means, and sampling for setting a sampling frequency in the sampling means according to a recording mode set by the recording mode setting means. A frequency control means, a compression rate control means for setting a compression rate in the image compression means according to a recording mode set by the recording mode setting means, and a recording means for recording image data compressed by the image compression means. It is characterized by having and.

本発明に係る画像記録装置はまた、入力画像信号をインターレース方式の画像データとして取り込み、所定の圧縮率で圧縮し、所定の搬送速度で記録媒体を搬送して記録する第１の記録モードと、前記第１の記録モードの少なくとも圧縮率を変更して、前記第１の記録モードより長時間の記録時間を得る第２の記録モードと、前記入力画像信号をプログレッシブ方式の画像データとして取り込み前記第２の記録モードと同等の圧縮率で圧縮し、記録媒体に記録する第３の記録モードとに対応可能な画像記録装置であって、前記記録媒体を搬送する搬送手段と、前記搬送手段により搬送される前記記録媒体上に多数のトラックを形成し情報を記録する記録手段と、設定された記録モードに応じて前記記録媒体の搬送動作を異ならせるよう制御する搬送制御手段とを有することを特徴とする。 The image recording apparatus according to the present invention also has a first recording mode in which an input image signal is taken in as interlaced image data , compressed at a predetermined compression rate, and a recording medium is conveyed and recorded at a predetermined transfer speed. A second recording mode in which at least the compression ratio of the first recording mode is changed to obtain a recording time longer than that of the first recording mode, and the input image signal is captured as progressive image data . compressed in second recording mode and the compression ratio of the same, etc., an image recording apparatus capable of coping with the third recording mode that records on a recording medium, and conveying means for conveying said recording medium, said conveying means It has a recording means for forming a large number of tracks on the recording medium to be conveyed and recording information, and a transfer control means for controlling the transfer operation of the recording medium to be different according to a set recording mode. It is characterized by.

Claims

A first recording mode in which an input image signal is captured as interlaced image data , compressed at a predetermined compression rate, and recorded by conveying a recording medium at a predetermined conveyance speed; and at least the compression rate of the first recording mode change, said first and second recording modes for achieving the long-time recording time from the recording mode, the compression ratio of the same, such as the incorporation the second recording mode as the progressive image data of the input image signal in compressed, an image recording apparatus capable of coping with the third recording mode that records on a recording medium,
And the recording mode setting means for setting the record mode,
Sampling means for sampling the input image signal;
Image compression means for compressing the image data sampled by the sampling means;
Sampling frequency control means for setting a sampling frequency in the sampling means according to the recording mode set by the recording mode setting means ;
A compression rate control means for setting a compression rate in the image compression means in accordance with the recording mode set by the recording mode setting means ;
An image recording apparatus comprising: recording means for recording image data compressed by the image compression means.

The image recording apparatus according to claim 1, wherein the first recording mode uses an HD format, and the second recording mode uses an SD format.

Said second recording mode and the third recording modes, the number of samples per screen of said sampling means, according to claim 1 or 2, wherein the first reasonable 6/16 times that of the recording mode Image recording device.

The image compression means has quantization means, and the quantization coefficient of the quantization means in the second recording mode and the third recording mode is equivalent to 3/4 times that of the first recording mode. The image recording apparatus according to claim 1, 2 or 3 .

A first recording mode in which an input image signal is captured as interlaced image data , compressed at a predetermined compression rate, and recorded by conveying a recording medium at a predetermined conveyance speed; and at least the compression rate of the first recording mode change, said first and second recording modes for achieving the long-time recording time from the recording mode, the compression ratio of the same, such as the incorporation the second recording mode as the progressive image data of the input image signal in compressed, an image recording apparatus capable of coping with the third recording mode that records on a recording medium,
Conveying means for conveying the recording medium;
Recording means for forming a plurality of tracks on the recording medium conveyed by the conveying means and recording information;
An image recording apparatus comprising: a conveyance control unit configured to control the conveyance operation of the recording medium in accordance with a set recording mode.

Said recording means, wherein in the second recording mode and the third recording modes, claim 5, characterized in that recording information on half substantial number of tracks in the case of the first recording mode The image recording apparatus described in 1.