JPS60201782A - Video disk player - Google Patents

Video disk player

Info

Publication number
JPS60201782A
JPS60201782A JP59059261A JP5926184A JPS60201782A JP S60201782 A JPS60201782 A JP S60201782A JP 59059261 A JP59059261 A JP 59059261A JP 5926184 A JP5926184 A JP 5926184A JP S60201782 A JPS60201782 A JP S60201782A
Authority
JP
Japan
Prior art keywords
frame
frame feeding
command
section
advance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59059261A
Other languages
Japanese (ja)
Inventor
Michiharu Nishihara
西原 通陽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP59059261A priority Critical patent/JPS60201782A/en
Publication of JPS60201782A publication Critical patent/JPS60201782A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/7605Television signal recording on discs or drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To enable a user to set frame feeding period freely by providing a frame feeding period setting device that can set frame feeding period freely in an automatic frame feeding commanding circuit provided in a frame feeding commanding section. CONSTITUTION:A still reproduction commanding section 17a that outputs still reproduction command, a frame feeding commanding section 17b that outputs frame feeding command, a normal reproduction commanding section 17c and a slow motion reproduction commanding section 17d are provided in the operating section 17 of a video disk player. An automatic frame feeding commanding circuit 17e that outputs frame feeding command at preset frame feeding period is provided in the frame feeding commanding section 17b to enable to set frame feeding period freely. Frame feeding command is outputted from the automatic frame feeding circuit 17e to the frame feeding commanding section 17b at desired period, and frame feeding is made automatically at desired period.

Description

【発明の詳細な説明】 (技術分野) 本発明は、スチル再生指令部から出力されるスチル再生
指令を受けて信号検出手段が任意に選定された一画面分
のビデオディスクの記録内容を読み出し、さらに、コマ
送り指令部から出力されたコマ送り指令を受けて信号検
出手段が前記一画面と異なる一画面のビデオディスクの
トラックを繰り返し読み出すように、該信号検出手段の
ビデオディスク径方向の位置を制御するトラッキングサ
ーボ機構を設けたビデオディスクプレーヤに関する。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention provides a method for reading recorded contents of a video disk for one arbitrarily selected screen by a signal detecting means in response to a still playback command output from a still playback command section. Further, the position of the signal detecting means in the radial direction of the video disc is adjusted so that the signal detecting means repeatedly reads tracks of the video disc of one screen different from the one screen in response to a frame feed command output from the frame feed command section. The present invention relates to a video disc player equipped with a tracking servo mechanism for controlling the video disc player.

(従来技術) この種のビデオディスクプレーヤでは、スチル再生指令
部から出力されるスチル再生指令を受けて信号検出手段
が任意に選定された一画面分のビデオディスクのトラッ
クを繰り返し読み出すことにより表示部に該−画面分の
映像を静止画像と同様に繰り返し再生表示する、いわゆ
るスチル再生が行なえ、さらに、コマ送り指令部を操作
してコマ送り指令を出力し、スチル再生される画面を切
リ替える、いわゆるコマ送りが行なえる。ところが、従
来のこの種のビデオディスクプレーヤでは、使用者がコ
マ送り指令部のコマ送り指令操作部を操作することによ
りコマ送り指令が1回出力され、画面が1回切り替えら
れるように構成されているので、使用者は画面を切り替
えるたびにコマ送り指令操作部を操作しなければならず
、煩わしい。
(Prior Art) In this type of video disc player, in response to a still playback command output from a still playback command section, the signal detection means repeatedly reads out tracks of the video disc for one arbitrarily selected screen. It is possible to perform so-called still playback, in which the video for the corresponding screen is repeatedly played back and displayed in the same way as a still image, and furthermore, the frame-by-frame feed command section is operated to output a frame-by-frame feed command to switch the still playback screen. , so-called frame-by-frame forwarding can be performed. However, conventional video disk players of this type are configured so that when the user operates the frame-advance command operation section of the frame-advance command section, the frame-advance command is output once and the screen is switched once. Therefore, the user has to operate the frame advance command operation section every time the screen is changed, which is cumbersome.

また、コマ送りを周期的に繰り返して、いわゆるスロー
モーション再生ができるように構成されたビデオディス
クプレーヤもあるが、コマ送りの周期が一定に設定され
ているために、内容によってはコマ送りの周期が速すぎ
る場合がある。
Additionally, there are video disc players that are configured to periodically repeat frame-by-frame playback for so-called slow-motion playback, but since the frame-by-frame rate is set to a constant, the frame-by-frame rate may vary depending on the content. may be too fast.

(目的) 本発明は、上述の点に鑑みてなされたものであって、使
用者が自由にスチル再生のコマ送り周期を設定できるよ
うにしたビデオディスクプレーヤを提供することを目的
とする。
(Objective) The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a video disc player that allows a user to freely set the frame advance period for still playback.

(実施例) 以下、図面によって本発明の実施例を詳細に説明する。(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

第1図は、本発明の一実施例のブロック図である。同図
において、1はターンテーブル、2はターンテーブル1
上に載置されたビデオディスク、3は信号検出用針ある
いは光ビームなどの信号検出手段、4はトラッキングサ
ーボ機構、5はターンテーブル1を定速回転駆動するメ
インモータ、6はメインモータ5を駆動するモータドラ
イブ回路、7はメインモータ5を制御するモータ制御回
路、8は信号検出手段3を介してビデオディスク2の記
録内容をFM信号として読み出すピックアップ回路、9
はビデオディスク2から得たFM信号を所定のレベルに
増幅するプリアンプ、10はFM信号からビデオ信号、
音声信号、トラック情報を分離し、ビデオ信号の復調そ
の他所要の信号処理を行なって映像信号出力端子22に
出力するビデオ信号処理回路である。このビデオ信号処
理回路10は、ビデオ信号の内のバースト信号によって
時間軸エラーを検出し、タイムベース用コイル25を介
して信号検出手段3をビデオディスク2のトラックの前
後方向に駆動し、時間軸エラーを補正している。11は
音声信号の復調その他所要の信号処理を行なってその信
号を音声信号出力端子23.24に出方する音声信号処
理回路、12はトラック情報を読み出すデータ読み出し
回路、13はトラッキングフィル14を駆動するトラッ
キングコイルドライブ回路、15はトラッキングコイル
ドライブ回路13にキックパルスを出力するキックパル
ス発生回路、16はキックパルス発生回路15を制御す
る制御回路、17は操作部である。
FIG. 1 is a block diagram of one embodiment of the present invention. In the same figure, 1 is a turntable, 2 is a turntable 1
3 is a signal detection means such as a signal detection needle or a light beam; 4 is a tracking servo mechanism; 5 is a main motor that drives the turntable 1 to rotate at a constant speed; 6 is a main motor that drives the turntable 1; 7 is a motor control circuit that controls the main motor 5; 8 is a pickup circuit that reads the recorded content of the video disc 2 as an FM signal via the signal detection means 3; 9;
10 is a preamplifier that amplifies the FM signal obtained from the video disc 2 to a predetermined level; 10 is a video signal from the FM signal;
This is a video signal processing circuit that separates the audio signal and track information, performs demodulation of the video signal and other necessary signal processing, and outputs the result to the video signal output terminal 22. This video signal processing circuit 10 detects a time axis error using a burst signal in the video signal, drives the signal detection means 3 in the front and back direction of the track of the video disk 2 via the time base coil 25, and Correcting errors. 11 is an audio signal processing circuit that demodulates the audio signal and performs other necessary signal processing and outputs the signal to audio signal output terminals 23 and 24; 12 is a data readout circuit that reads track information; and 13 drives the tracking filter 14. 15 is a kick pulse generation circuit that outputs a kick pulse to the tracking coil drive circuit 13; 16 is a control circuit that controls the kick pulse generation circuit 15; and 17 is an operating section.

前記トラッキングサーボ機構4は、信号検出手段3をビ
デオディスク2の径方向に変位駆動するトラッキングコ
イル14と、このトラッキングコイル14に電流を供給
するトラッキングコイルドライブ回路13と、信号検出
手段3がビデオディスク2の中央部をトレースするよう
に前記トラッキングコイルドライブ回路13を制御する
トラッキングサーボ回路18とからなる。スチル再生の
場合には信号検出手段3は、キックパルス発生回路15
がらのキックパルスによって1トラツクだけビデオディ
スクの径方向外方にキックされて元のトラックに戻り、
同一トラックを連続して再生する。
The tracking servo mechanism 4 includes a tracking coil 14 for displacing and driving the signal detection means 3 in the radial direction of the video disc 2, a tracking coil drive circuit 13 for supplying current to the tracking coil 14, and a tracking servo circuit 18 that controls the tracking coil drive circuit 13 so as to trace the center portion of the coil. In the case of still playback, the signal detection means 3 includes a kick pulse generation circuit 15
The kick pulse kicks the video disk one track radially outward and returns to the original track.
Play the same track continuously.

前記操作部17は、図示しない複数の操作キーを備えて
おり、これらの操作キーの操作に応じてスチル再生指令
を出力するスチル再生指令部17a、コマ送り指令を出
力するコマ送り指令部17b、ノーマル再生指令を出力
するノーマル再生指令部17c、スローモーション再生
指令を出力するスローモーシコン再生指令部17clな
どを備えている。
The operation section 17 includes a plurality of operation keys (not shown), and includes a still playback command section 17a that outputs a still playback command in response to the operation of these operation keys, a frame advance command section 17b that outputs a frame advance command, It includes a normal reproduction command unit 17c that outputs a normal reproduction command, a slow motion control reproduction command unit 17cl that outputs a slow motion reproduction command, and the like.

本発明のビデオディスクプレーヤの操作部17では、さ
らに、前記コマ送り指令部17bに、コマ送り指令を予
め設定されたコマ送り周期で出力する自動コマ送り指令
回路17eを設け、この自動コマ送り指令回路17eの
コマ送り周期を自在ニ設定できるコマ送り周期設定手段
としての図示しない数値キー等の操作キーを設けている
In the operation section 17 of the video disc player of the present invention, the frame advance command section 17b is further provided with an automatic frame advance command circuit 17e that outputs a frame advance command at a preset frame advance period. Operation keys such as numerical keys (not shown) are provided as frame feed cycle setting means for freely setting the frame feed cycle of the circuit 17e.

本発明では、前記コマ送り設定手段で所望のコマ送りの
周期を設定することによって、自動コマ送り回路17e
がらコマ送り指令部17bに前記所望の周期でコマ送り
指令が出力され、これによって自動的に所望の周期でコ
マ送りがなされる。
In the present invention, the automatic frame advance circuit 17e can be set by setting a desired frame advance cycle using the frame advance setting means.
A frame feed command is outputted to the frame feed command unit 17b at the desired period, thereby automatically feeding the frame at the desired period.

第2図は、第1図のビデオディスクプレーヤのコマ送り
周期の設定手順を説明するための図である。例えば今、
順方向に静止画像を10秒の周期でコマ送1)シたい場
合には次の手順でキー操作を行なう。まず、操作部17
の繰作キーのうち゛スチル前゛の操作キー19を操作す
る。これによってスチル再生指令部17aからスチル再
生指令が出力されるとともに、コマ送り周期設定受付状
態になる。次に、操作キーのうちの数値キーによって所
望のコマ送り周期を設定する。即ち10秒毎にコマ送り
を行ないたい場合には“1゛の数値キー20、“0゛の
数値キー21と順次操作する。そして最後に再び゛スチ
ル前“の操作キー19を操作し、これによって自動コマ
送りの設定が完了し、所望のコマ送り周期、即ち10秒
毎に静止画像の自動コマ送り再生が開始される。このよ
うにして本発明では、所望の周期で自動的にコマ送りが
できるので、従来のようにコマ送りのたび毎にコマ送り
指令操作部を操作する必要がなく、特にビデオディスク
の各トラックに静止画像が連続的に記録されているビデ
オディスクの再生に於いて有効である。
FIG. 2 is a diagram for explaining the procedure for setting the frame feed cycle of the video disc player of FIG. 1. For example, now,
If you want to move forward still images frame by frame at a cycle of 10 seconds 1), perform the following key operations. First, the operation section 17
Among the operation keys, operate the ``pre-still'' operation key 19. As a result, a still playback command is output from the still playback command unit 17a, and the frame feed cycle setting is accepted. Next, a desired frame feed cycle is set using the numerical keys of the operation keys. That is, if it is desired to advance frames every 10 seconds, the numeric key 20 for "1" and the numeric key 21 for "0" are operated in sequence. Finally, the "pre-still" operation key 19 is operated again, thereby completing the automatic frame-by-frame setting, and automatic frame-by-frame playback of still images is started at the desired frame-by-frame interval, that is, every 10 seconds. In this way, with the present invention, frames can be advanced automatically at a desired cycle, so there is no need to operate the frame advance command operation section every time a frame is advanced, as is the case with conventional methods. This is effective in playing back video discs on which still images are continuously recorded.

(効果) 以上のように本発明によれば、スチル再生指令部から出
力されるスチル再生指令を受けて信号検出手段が任意に
選定された一画面分のビデオディスクのトラックを繰り
返し読み出し、さらに、コマ送り指令部から出力された
コマ送り指令を受けて信号検出手段が前記一画面と異な
る一画面のビデオディスクのトラックを繰り返し読み出
すように、該信号検出手段のビデオディスク径方向の位
置を制御するトラッキングサーボ機構を設けたビデオデ
ィスクプレーヤにおいて、前記コマ送り指令部にコマ送
り指令を予め設定されたコマ送り周期で出力する自動コ
マ送り指令回路を設け、該自動コマ送り指令回路にコマ
送り周期を自在に設定できるコマ送り周期設定手段を設
けたので、使用者が自由にコマ送り周期を設定すること
が可能となる。 ・ ・ 普 φ、珈i箇!/−ti説明 第1図は本発明の一実施例のブロック図、第2図は11
図の実施例のコマ送り周期の設定手順を説明するだめの
図である。
(Effects) As described above, according to the present invention, in response to a still playback command output from a still playback command unit, the signal detection means repeatedly reads tracks of a video disk for one arbitrarily selected screen, and further, The position of the signal detecting means in the radial direction of the video disk is controlled so that the signal detecting means repeatedly reads tracks of the video disk of one screen different from the one screen in response to a frame feed command output from the frame feed command section. In a video disc player equipped with a tracking servo mechanism, an automatic frame feed command circuit for outputting a frame feed command at a preset frame feed cycle is provided in the frame feed command unit, and the frame feed cycle is set in the automatic frame feed command circuit. Since a frame feed cycle setting means that can be freely set is provided, the user can freely set the frame feed cycle.・ ・ Fuφ, coffee! /-ti Explanation FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 3 is a diagram for explaining the procedure for setting the frame advance period in the embodiment shown in the figure.

2はビデオディスク、3は信号検出手段、4はトランキ
ングサーボ機構、17は繰作部、17aはスチル再生指
令部、171+はコマ送り指令部、17eは自動コマ送
り指令回路。
2 is a video disk, 3 is a signal detection means, 4 is a trunking servo mechanism, 17 is a reproduction section, 17a is a still playback command section, 171+ is a frame advance command section, and 17e is an automatic frame advance command circuit.

出願人 シ ャ − プ株式会社 代理人 弁理士 岡田和秀Applicant Shape Co., Ltd. Agent: Patent Attorney Kazuhide Okada

Claims (1)

【特許請求の範囲】[Claims] (1)スチル再生指令部から出力されるスチル再生指令
を受けて信号検出手段が任意に選定された一画面分のビ
デオディスク同一トラックを繰り返し再生し、さらに、
コマ送り指令部から出力されたコマ送り指令を受けて信
号検出手段が前記一画面と異なる一画面のビデオディス
ク同一トラックを繰り返し再生するように、該信号検出
手段のビデオディスク径方向の位置を制御するトラッキ
ングサーボ機構を設けたビデオディスクプレーヤにおい
て、 前記コマ送り指令部に、コマ送り指令を予め設定
されたコマ送り周期で出力する自動コマ送り指令回路を
設け、該自動コマ送・り指令回路に、コマ送り周期を自
在に設定できるコマ送り周期設定手段を設けたことを特
徴とするビデオディスクプレーヤ。
(1) In response to a still playback command output from a still playback command section, the signal detection means repeatedly plays back the same track of the video disk for one arbitrarily selected screen, and further,
The position of the signal detecting means in the radial direction of the video disc is controlled so that the signal detecting means receives a frame advancing command output from the frame advancing command unit and repeatedly reproduces the same track of the video disc of one screen different from the one screen. In a video disc player equipped with a tracking servo mechanism, the frame-advance command section is provided with an automatic frame-advance command circuit that outputs a frame-advance command at a preset frame-advance cycle; A video disc player characterized in that it is provided with a frame advance cycle setting means that can freely set the frame advance cycle.
JP59059261A 1984-03-26 1984-03-26 Video disk player Pending JPS60201782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59059261A JPS60201782A (en) 1984-03-26 1984-03-26 Video disk player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59059261A JPS60201782A (en) 1984-03-26 1984-03-26 Video disk player

Publications (1)

Publication Number Publication Date
JPS60201782A true JPS60201782A (en) 1985-10-12

Family

ID=13108251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59059261A Pending JPS60201782A (en) 1984-03-26 1984-03-26 Video disk player

Country Status (1)

Country Link
JP (1) JPS60201782A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289959A2 (en) * 1987-04-30 1988-11-09 Nec Corporation Reproduction system capable of reproducing a still image by interrupting a sequence of recorded signals
KR100423772B1 (en) * 1996-03-29 2004-06-30 마츠시타 덴끼 산교 가부시키가이샤 Multimedia optical discs, playback devices, and playback methods that improve the performance of interactive playback

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289959A2 (en) * 1987-04-30 1988-11-09 Nec Corporation Reproduction system capable of reproducing a still image by interrupting a sequence of recorded signals
KR100423772B1 (en) * 1996-03-29 2004-06-30 마츠시타 덴끼 산교 가부시키가이샤 Multimedia optical discs, playback devices, and playback methods that improve the performance of interactive playback

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