JPH1198455A - Intermittent recording device - Google Patents

Intermittent recording device

Info

Publication number
JPH1198455A
JPH1198455A JP9237375A JP23737597A JPH1198455A JP H1198455 A JPH1198455 A JP H1198455A JP 9237375 A JP9237375 A JP 9237375A JP 23737597 A JP23737597 A JP 23737597A JP H1198455 A JPH1198455 A JP H1198455A
Authority
JP
Japan
Prior art keywords
recording
video signal
motion
detection circuit
recording device
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.)
Granted
Application number
JP9237375A
Other languages
Japanese (ja)
Other versions
JP4115558B2 (en
Inventor
Yasuyuki Nagano
靖幸 永野
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to JP23737597A priority Critical patent/JP4115558B2/en
Priority to KR1019970078872A priority patent/KR100255244B1/en
Publication of JPH1198455A publication Critical patent/JPH1198455A/en
Application granted granted Critical
Publication of JP4115558B2 publication Critical patent/JP4115558B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • G11B31/006—Arrangements for the associated working of recording or reproducing apparatus with related apparatus with video camera or receiver
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Abstract

PROBLEM TO BE SOLVED: To reduce consumption of a recording tape by detecting an amount of movement of a monitored video signal and changing the recording mode based on the movement amount. SOLUTION: The intermittent recording device is made up of a motion detection circuit 5 that detects a motion of a monitored video signal, a moving amount detection circuit 6 that detects a moving amount of a motion detected by the motion detection circuit 6, a video signal recording device 3 that records the monitored video signal, and a control circuit 4 that controls the video signal recording device 3 based on an output signal of the motion detection circuit 6. The video signal recording device 3 changes a recording interval of intermittent recording by the output signal from the motion detection circuit 6. Thus, only the video image required for monitoring is recorded and the consumed amount of the tape is reduced.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、映像信号を間欠的
に記録する磁気記録装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording apparatus for recording video signals intermittently.

【０００２】[0002]

【従来の技術】近時、銀行や店舗、あるいは車庫などの
において、その内部の状態を記録するため、間欠的に長
時間記録する監視用ＶＴＲが設置されるようになってき
ている。従来の間欠記録方式を採用したＶＴＲ、所謂タ
イムラプスＶＴＲの記録動作は、入力された映像信号を
磁気テープに記録し、一定時間待機する。そして、再び
記録を開始し、また停止して一定時間待機し、記録を中
止するまでこの動作を繰り返す。このようなタイムラプ
スＶＴＲでは、入力信号をただ記録するため、必要とし
ない映像まで延々と記録を行っていた。このため、記録
テープを無意味に消費し、ヘッドやテープの走行系の摩
擦により寿命が著しく低下していた。この欠点を解決す
るものとして、例えば、特開平４−２４７７８３号公報
に示される間欠型磁気記録装置がある。この間欠型磁気
記録装置は、記録媒体に記録を行ったのと同一の映像信
号を保存格納しておく記憶装置と、記録を行う条件とし
て、取り込んだ映像信号と記録した映像信号とを比較す
る比較器と、一定時間毎に比較器の出力信号を調べ、変
化があった場合のみ、入力された映像信号を磁気記録媒
体に記録するように制御を行い、映像信号に変化が検出
された映像信号のみ順次記録媒体へ記録するようにして
いる。このように制御することにより、ＶＴＲの耐久性
の向上と、磁気テープの交換磁気の延長を図ることがで
きる。2. Description of the Related Art Recently, in banks, stores, garages, and the like, monitoring VTRs for intermittently recording for a long time have been installed in order to record the internal state. In a recording operation of a VTR employing a conventional intermittent recording method, that is, a so-called time lapse VTR, an input video signal is recorded on a magnetic tape, and a predetermined period of time is waited. Then, the recording is started again, stopped and waited for a certain time, and this operation is repeated until the recording is stopped. In such a time-lapse VTR, an input signal is simply recorded, so that an unnecessary video is recorded endlessly. For this reason, the recording tape is consumed in a meaningless manner, and the life is remarkably reduced due to friction of the head and the running system of the tape. In order to solve this drawback, there is, for example, an intermittent magnetic recording apparatus disclosed in Japanese Patent Application Laid-Open No. Hei 4-247773. This intermittent magnetic recording device compares a captured video signal with a recorded video signal as a condition for recording, with a storage device storing and storing the same video signal as recorded on a recording medium. The comparator and the output signal of the comparator are checked at regular intervals, and only when there is a change, control is performed so that the input video signal is recorded on the magnetic recording medium. Only signals are sequentially recorded on a recording medium. By performing such control, it is possible to improve the durability of the VTR and extend the exchange magnetism of the magnetic tape.

【０００３】また、他の例として特開昭６３−５９２８
２号公報には間欠記録ＶＴＲがある。これは、ＶＴＲに
動き検出回路を設け、入力された映像信号に”動き”が
検出されたら、間欠モードから連続記録モードに切り換
えるようにしたものである。図４は上記特開平４−２４
７７８３号公報に示された間欠記録装置を示し、映像信
号を記録する記憶装置１と、記憶装置１の出力と記録装
置に入力される映像信号とを比較する比較器２と、入力
される映像信号を記録する磁気記録装置３と、比較器２
の信号を一定間隔でサンプリングした信号をトリガーと
して記憶装置１に映像信号を記憶させると共に、この映
像信号を記録するように磁気記録装置に指令する制御装
置４とから構成されている。この構成において、比較器
２の出力信号を一定間隔で調べ変化を検出し、間欠記録
動作を開始させることで、ＶＴＲの耐久性の向上と、磁
気テープの交換時期の延長を図ることができる。Another example is disclosed in Japanese Patent Application Laid-Open No. 63-5928.
No. 2 discloses an intermittent recording VTR. In this method, a motion detection circuit is provided in a VTR, and when "motion" is detected in an input video signal, the mode is switched from an intermittent mode to a continuous recording mode. FIG.
No. 7783 discloses an intermittent recording device, which stores a video signal, a storage device 1, a comparator 2 for comparing an output of the storage device 1 with a video signal input to the recording device, and an input video signal. A magnetic recording device 3 for recording signals and a comparator 2
And a control device 4 for instructing the magnetic recording device to record the video signal in the storage device 1 by using a signal obtained by sampling the above signal at regular intervals as a trigger. In this configuration, by examining the output signal of the comparator 2 at regular intervals to detect a change and start the intermittent recording operation, it is possible to improve the durability of the VTR and extend the time for replacing the magnetic tape.

【０００４】ここで、図５は図４の従来例におけるタイ
ミングチャートを示す。波形ａは比較器２の出力を制御
回路４でサンプリングするパルスであり、波形ｂは、比
較器２の出力信号を、また、波形ｃは制御回路４が映像
信号記録装置を制御するパルスを表している。即ち、図
４の装置においては、波形ａが波形ｂトリガーして波形
ｃを作成するものである。したがって、図５に示す、動
きが検出された区間ｄにおいては情報が記録されないこ
ととなる。FIG. 5 shows a timing chart in the conventional example of FIG. A waveform a is a pulse for sampling the output of the comparator 2 by the control circuit 4, a waveform b is an output signal of the comparator 2, and a waveform c is a pulse for the control circuit 4 to control the video signal recording device. ing. That is, in the apparatus of FIG. 4, the waveform a triggers the waveform b to generate the waveform c. Therefore, no information is recorded in the section d where the motion is detected, as shown in FIG.

【０００５】また、図４において、記憶装置１と比較器
２から構成されるブロックを考えた場合、このブロック
は、動き検出回路とみることができる。したがって、前
記特開昭６３−５９２８２号公報の間欠記録ＶＴＲが示
す構成は、図４の構成と実質的同一とみることができ
る。In FIG. 4, when a block composed of the storage device 1 and the comparator 2 is considered, this block can be regarded as a motion detecting circuit. Therefore, the configuration of the intermittent recording VTR disclosed in JP-A-63-59282 can be regarded as substantially the same as the configuration shown in FIG.

【０００６】[0006]

【発明が解決しようとする課題】ところで、上述の特開
平４−２４７７８３号公報の間欠型磁気記録装置による
と、映像情報の変化を一定間隔で比較器により検出して
記録するタイミングを決めているため、検出結果をみる
間に変化が発生しても記録されない。間欠記録状態で、
監視している映像に”動き”が検出されなかったら、新
しい情報が磁気テープに記録されないので、正常に動作
しているかどうか確認することができない。また、特開
昭６３−５９２８２号公報の間欠記録ＶＴＲによると、
間欠記録状態から監視している映像に”動き”を検出し
たら無条件で、連続記録に移行することになるので、テ
ープの消費量が増大する。According to the above-mentioned intermittent magnetic recording apparatus disclosed in Japanese Patent Application Laid-Open No. Hei 4-247773, the timing at which a change in video information is detected and recorded at regular intervals by a comparator is determined. Therefore, even if a change occurs while checking the detection result, it is not recorded. In the intermittent recording state,
If "movement" is not detected in the video being monitored, no new information is recorded on the magnetic tape, so that it cannot be confirmed whether or not it is operating normally. According to the intermittent recording VTR disclosed in JP-A-63-59282,
If "movement" is detected in the video being monitored from the intermittent recording state, the recording is unconditionally shifted to the continuous recording, so that the tape consumption increases.

【０００７】本発明は、上記問題点に鑑みなされたの
で、監視する映像信号の”動き”の量を検出し、この動
き量に基づいて記録モードを設定するようにして記録テ
ープの消費量の低減を図るとともに、ヘッドとテープの
走行系の摩耗を最小限に減らしても、必要な録画を確保
することができる間欠記録装置を提供することを目的と
する。In view of the above problems, the present invention detects the amount of "movement" of a video signal to be monitored, and sets a recording mode based on the amount of movement to reduce the consumption of the recording tape. It is an object of the present invention to provide an intermittent recording apparatus capable of securing necessary recording even while reducing the wear and minimizing wear of a running system of a head and a tape.

【０００８】[0008]

【課題を解決するための手段】上記課題は本願発明の以
下の構成により解決される。請求項１の発明の間欠記録
装置は、監視している映像信号の動きを検出する動き検
出回路と、前記動き検出回路が検出する動きのの動き量
を検出する動き量検出回路と、前記監視している映像信
号を記録する映像信号記録装置と、前記動き量検出回路
の情報により前記映像信号記録装置を制御する制御回路
とから構成され、前記動き量検出回路の出力信号により
前記映像信号記録装置が間欠記録する記録間隔を変化さ
せるようにした構成とした。The above object is achieved by the following constitutions of the present invention. 2. The intermittent recording device according to claim 1, wherein the motion detection circuit detects a motion of the monitored video signal, a motion amount detection circuit detects a motion amount of the motion detected by the motion detection circuit, A video signal recording device for recording the video signal being recorded, and a control circuit for controlling the video signal recording device based on information of the motion amount detection circuit. The video signal recording is performed by an output signal of the motion amount detection circuit. The recording interval at which the apparatus performs intermittent recording is changed.

【０００９】請求項２の発明は、請求項１記載の間欠記
録装置において、前記映像記録装置間欠記録する時間間
隔を変化させるタイミングは、予め設定された間隔、又
は前記動き検出回路からの出力信号に基づき行われる構
成とした。請求項３の発明は、請求項１記載の間欠記録
装置において、前記映像記録装置における磁気テープが
収容される筐体内に情報を記録することができる記憶素
子を設け、監視している映像に動きがないとき、映像に
動きがないことを示す情報を、設定した一定の時間間隔
で前記記憶素子に記憶させる構成とした。According to a second aspect of the present invention, in the intermittent recording apparatus according to the first aspect, the timing at which the time interval for the intermittent recording of the video recording device is changed is a preset interval or an output signal from the motion detecting circuit. The configuration is based on the following. According to a third aspect of the present invention, in the intermittent recording apparatus according to the first aspect, a storage element capable of recording information is provided in a housing of the video recording apparatus in which a magnetic tape is accommodated, and a motion of the video being monitored is controlled. When there is no image, information indicating that there is no motion in the video is stored in the storage element at a set fixed time interval.

【００１０】[0010]

【発明の実施の形態】以下、図面を参照して本発明の実
施例を説明する。図１は本発明の実施例に係る間欠記録
装置のブロック構成図を示す。間欠記録装置は、動き検
出回路５、動き量検出回路６、映像信号記録装置３、制
御回路４及び記憶装置１を主要構成要素としている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of an intermittent recording apparatus according to an embodiment of the present invention. The intermittent recording device includes a motion detection circuit 5, a motion amount detection circuit 6, a video signal recording device 3, a control circuit 4, and a storage device 1 as main components.

【００１１】動き検出回路５は、監視カメラ等の撮像装
置より出力され、デジタル信号に変換された映像信号が
入力され、例えば、メモリを用いて、一定時間遅延され
た映像信号と現在の映像信号とを比較して画像に動きが
あった場合にこれを検出する。動き検出回路５で検出さ
れた出力信号は、動き量検出回路６に入力され、監視し
ている映像の動き量が検出される。検出された動き量の
情報は、制御回路４に入力され、映像信号記録装置（Ｖ
ＴＲ）の間欠記録モードの制御を行う。The motion detection circuit 5 receives a video signal output from an imaging device such as a surveillance camera and converted into a digital signal, and, for example, uses a memory to delay the video signal for a predetermined time and the current video signal. If there is a motion in the image, this is detected. The output signal detected by the motion detection circuit 5 is input to a motion amount detection circuit 6, and the motion amount of the monitored video is detected. Information on the detected amount of motion is input to the control circuit 4, and is input to the video signal recording device (V
TR) to control the intermittent recording mode.

【００１２】また、監視カメラからの映像信号は、記憶
装置１に入力され、一定時間遅延されて映像信号記録装
置に入力されて記録される。記憶装置１の容量は、制御
回路４が映像信号記録装置３を最適に記録できる状態に
するための判断に要するだけの時間があればよく、ここ
では、１フィールド分、又は１フレーム分に設定する。The video signal from the surveillance camera is input to the storage device 1 and is input to the video signal recording device after being delayed for a predetermined time and is recorded. The capacity of the storage device 1 only needs to be long enough for the control circuit 4 to make a determination for setting the video signal recording device 3 in a state in which it can be optimally recorded. Here, the capacity is set to one field or one frame. I do.

【００１３】図２に図１に示した本発明の実施例にの間
欠記録装置のタイミングチャートを示す。図２におい
て、波形ｅは動き検出回路５の出力信号、波形ｆは動き
量検出回路６の出力信号、波形ｇは制御回路４が映像信
号記録装置３を制御する制御信号を示している。制御回
路４より波形ｇが出力されている間、映像信号記録装置
３に映像を記録させるようにする。FIG. 2 is a timing chart of the intermittent recording apparatus according to the embodiment of the present invention shown in FIG. 2, a waveform e indicates an output signal of the motion detection circuit 5, a waveform f indicates an output signal of the motion amount detection circuit 6, and a waveform g indicates a control signal for controlling the video signal recording device 3 by the control circuit 4. While the control circuit 4 is outputting the waveform g, the video signal recording device 3 is caused to record video.

【００１４】動き検出回路５で検出された信号ｅは、動
き量検出回路６により、検出された信号の幅や数に基づ
いて監視している映像信号の動きの量として表す。波形
ｆの振幅が高ければ動きが激しい物体を監視しているこ
とになる。制御回路４は。動き量検出回路６の出力ｆを
入力して、映像信号記録装置３の間欠記録モードを設定
する。ここで、間欠記録モードの設定例について述べ
る。The signal e detected by the motion detecting circuit 5 is represented by the motion amount detecting circuit 6 as the amount of motion of the video signal monitored based on the width and number of the signals detected. If the amplitude of the waveform f is high, it means that a rapidly moving object is being monitored. The control circuit 4 is. The output f of the motion amount detection circuit 6 is input, and the intermittent recording mode of the video signal recording device 3 is set. Here, a setting example of the intermittent recording mode will be described.

【００１５】例えば、動き量検出回路６の出力波形ｆ
が、振幅ｈであるとき、即ち、監視カメラが物体の動き
を検出しているが、その動き量が比較的小さいとき、制
御回路４は、例えば、４秒間隔で間欠記録を行わせる制
御信号ｇを出力するように設定する。また、波形ｆが高
い振幅である振幅ｉを示すときは、連続記録するように
制御信号ｇを出力する。また、波形ｆがｊ程度の高さの
振幅のときは、２秒間隔で間欠記録する制御信号ｇを出
力する。なお、間欠記録する記録時間ｔ0 は、予め適宜
設定する。また、間欠記録する時間間隔を変えるタイミ
ングは、予め設定することもできるが、動き検出回路が
動きを検出するタイミングで行うようにすることによ
り、記録すべき映像信号をもれなく的確に記録するこが
できる。For example, the output waveform f of the motion amount detection circuit 6
Is the amplitude h, that is, when the surveillance camera detects the movement of the object, but when the amount of movement is relatively small, the control circuit 4 controls the control signal to perform intermittent recording at intervals of, for example, 4 seconds. Set to output g. When the waveform f indicates the high amplitude i, the control signal g is output so as to perform continuous recording. When the waveform f has an amplitude of a height of about j, the control signal g for intermittent recording is output at an interval of 2 seconds. Note that the recording time t 0 for intermittent recording is appropriately set in advance. Also, the timing of changing the time interval for intermittent recording can be set in advance, but by performing the timing at the timing when the motion detection circuit detects the motion, the video signal to be recorded can be accurately recorded without fail. it can.

【００１６】また、動き量検出回路６の出力がない区間
では、記録動作を停止するように制御する。このよう
に、制御回路４は、監視カメラが捉えている物体の動き
とその動き量の程度により、映像信号記録装置３に記録
させる間隔を制御するようにすることにより、必要な情
報を的確に記録し、また、余分な映像を記録しないよう
にすることができる。In a section where there is no output from the motion amount detection circuit 6, control is performed so as to stop the recording operation. As described above, the control circuit 4 controls the interval at which the video signal recording device 3 records the information based on the movement of the object captured by the monitoring camera and the degree of the movement amount, so that the necessary information can be accurately obtained. It is possible to record and not to record extra video.

【００１７】ところで、上記のような間欠記録モードに
おいて、監視している映像信号に動きがない場合であっ
ても、間欠装置が正常に作動しているかどうか確認する
必要がある。そこで、本発明においては、更に、、磁気
テープを収容する筐体内に記憶手段を配置し、この記憶
手段に監視している映像信号に動きがないことを記憶さ
せるようにしている。In the above-described intermittent recording mode, it is necessary to check whether the intermittent device is operating normally even if the monitored video signal does not move. Therefore, in the present invention, a storage unit is further arranged in a housing for accommodating the magnetic tape, and the storage unit stores the fact that there is no movement in the monitored video signal.

【００１８】図３は、本発明における映像信号記録装置
３の構成図を示すものである。入力された映像信号は、
信号処理回路７で所定の信号処理が施される。処理され
た信号は、記録増幅回路８に入力されて増幅されてヘッ
ド９に供給され、磁気テープ１０に記録される。本発明
においては、磁気テープを収容する筐体１２内に記憶素
子を備える情報記憶回路１１を設けている。そして、制
御装置４は、この情報記憶回路１１に、監視している映
像信号に動きがないとき、図２に示す波形ｋを情報記憶
回路１１に出力し、監視している映像に動きがないこと
を記憶させる。ここでは、磁気テープ１０に映像信号が
記録されないとき、情報記憶回路に予め定められた間隔
ｔ1 で情報を記憶するようにしている。なお、この場合
に記憶される情報は、計時手段（図示せず）からの時刻
情報と共に記憶するようにする。また、情報記憶回路１
１の記憶容量としては、例えば、２４時間の間の情報に
ついて記憶できるだけのものを設けておく。このよう
に、磁気テープに映像信号が記録されないとき、映像信
号に動きがないことを示す情報を、別途設けた情報記憶
回路１１に記憶させておくとにより、磁気テープに映像
信号が記録されていない期間についても、映像信号記憶
装置３が正常に作動していることの確認ができ、また、
監視している映像信号に動きがない期間を把握すること
が容易である。FIG. 3 shows a configuration diagram of the video signal recording device 3 according to the present invention. The input video signal is
The signal processing circuit 7 performs predetermined signal processing. The processed signal is input to the recording amplification circuit 8, amplified, supplied to the head 9, and recorded on the magnetic tape 10. In the present invention, an information storage circuit 11 including a storage element is provided in a housing 12 that houses a magnetic tape. Then, when there is no motion in the monitored video signal in the information storage circuit 11, the control device 4 outputs the waveform k shown in FIG. 2 to the information storage circuit 11, and the monitored video has no motion. Remember that. Here, when the video signal on the magnetic tape 10 is not recorded, so that to store the information at intervals t 1 predetermined in the information storage circuit. It should be noted that the information stored in this case is stored together with the time information from a clock means (not shown). The information storage circuit 1
For example, a storage capacity that can store information for 24 hours is provided as one storage capacity. As described above, when the video signal is not recorded on the magnetic tape, the information indicating that there is no motion in the video signal is stored in the separately provided information storage circuit 11, so that the video signal is recorded on the magnetic tape. It is possible to confirm that the video signal storage device 3 is operating normally even during the absence period,
It is easy to grasp the period during which there is no movement in the monitored video signal.

【００１９】[0019]

【発明の効果】請求項１の発明によれば、監視している
映像信号に動きがある時のみ、映像信号を記録すると共
に、動きの程度により、記録する間隔を変更するように
しているため、監視を確実に行うとと共に、記録する磁
気テープの消費量を大幅に減らすことができる。したが
って、映像記録装置の走行系の摩耗を最小限にし、装置
の耐久性も向上する。また、監視している映像信号の動
きの度合いにより間欠記録する間隔を任意に設定するこ
とができ、監視する対象に合わせて最適の条件を設定す
ることができる。According to the first aspect of the present invention, the video signal is recorded only when the monitored video signal has a motion, and the recording interval is changed according to the degree of the motion. In addition, the monitoring can be reliably performed, and the consumption of the magnetic tape to be recorded can be greatly reduced. Therefore, the wear of the running system of the video recording device is minimized, and the durability of the device is improved. Also, the interval for intermittent recording can be set arbitrarily according to the degree of movement of the video signal being monitored, and optimal conditions can be set according to the monitoring target.

【００２０】請求項２の発明によれば、監視している映
像信号に動きを検出すると予め設定された間隔以内であ
っても、直ちに記録動作に移行することができ、より多
くの情報を情報量が得られ、監視すべき情報のもれを少
なくすることができる。請求項３の発明によれば、監視
している映像信号に動きがなく、磁気テープに記録され
ていなくても、動きがなかったことを示す情報が磁気テ
ープの筐体内に設けた記憶素子に記憶されているため、
これをの後に確認することにより、映像信号記録装置が
正常に作動していることの確認が可能となり、監視して
いる映像信号に動きがない期間を把握することが容易と
なる。According to the second aspect of the present invention, when a motion is detected in the monitored video signal, it is possible to immediately shift to the recording operation even within a preset interval, and more information can be stored in the information signal. The amount is obtained, and the leakage of information to be monitored can be reduced. According to the invention of claim 3, even if the monitored video signal has no motion and is not recorded on the magnetic tape, information indicating that there is no motion is stored in the storage element provided in the housing of the magnetic tape. Because it is remembered,
By confirming this later, it is possible to confirm that the video signal recording apparatus is operating normally, and it is easy to grasp a period during which the monitored video signal does not move.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施例に係る間欠記録装置のブロック
構成図である。FIG. 1 is a block diagram of an intermittent recording apparatus according to an embodiment of the present invention.

【図２】本発明の実施例におけるタイミングチャートで
ある。FIG. 2 is a timing chart in the embodiment of the present invention.

【図３】映像信号記録記録装置の構成を示す図である。FIG. 3 is a diagram showing a configuration of a video signal recording / recording device.

【図４】従来のメモリ回路を用いた間欠記録装置を示す
ブロック図である。FIG. 4 is a block diagram showing a conventional intermittent recording device using a memory circuit.

【図５】従来例におけるタイミングチャートを示す図で
ある。FIG. 5 is a diagram showing a timing chart in a conventional example.

【符号の説明】[Explanation of symbols]

１ 記憶装置 ２ 比較回路 ３ 映像信号記録装置 ４ 制御回路 ５ 動き検出回路 ６ 動き量検出回路 ７ 信号処理回路 ８ 記録増幅回路 ９ ヘッド １０ 磁気テープ １１ 情報記憶回路 REFERENCE SIGNS LIST 1 storage device 2 comparison circuit 3 video signal recording device 4 control circuit 5 motion detection circuit 6 motion amount detection circuit 7 signal processing circuit 8 recording amplification circuit 9 head 10 magnetic tape 11 information storage circuit

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 監視している映像信号の動きを検出する
動き検出回路と、前記動き検出回路が検出する動きの動
き量を検出する動き量検出回路と、前記監視している映
像信号を記録する映像信号記録装置と、前記動き量検出
回路の情報により前記映像信号記録装置を制御する制御
回路とから構成され、前記動き量検出回路の出力信号に
より前記映像信号記録装置が間欠記録する記録間隔を変
化させるようにしたとを特徴とする間記記録装置。1. A motion detection circuit for detecting a motion of a monitored video signal, a motion amount detection circuit for detecting a motion amount of a motion detected by the motion detection circuit, and recording the monitored video signal. A video signal recording device, and a control circuit for controlling the video signal recording device based on the information of the motion amount detection circuit, and a recording interval at which the video signal recording device intermittently records the output signal of the motion amount detection circuit. Is changed. 【請求項２】 請求項１記載の間欠記録装置において、
前記映像記録装置間欠記録する時間間隔を変化させるタ
イミングは、予め設定された間隔、又は前記動き検出回
路からの出力信号に基づき行われることを特徴とする間
欠記録装置。2. The intermittent recording device according to claim 1, wherein
The intermittent recording apparatus is characterized in that the timing of changing the time interval for the intermittent recording of the video recording apparatus is determined based on a preset interval or an output signal from the motion detection circuit. 【請求項３】 請求項１記載の間欠記録装置において、
前記映像記録装置における磁気テープが収容される筐体
内に情報を記録することができる記憶素子を設け、監視
している映像に動きがないとき、映像に動きがないこと
を示す情報を、設定した一定の時間間隔で前記記憶素子
に記憶させることを特徴とした間欠記録装置。3. The intermittent recording device according to claim 1, wherein
A storage element capable of recording information is provided in a housing in which the magnetic tape is housed in the video recording apparatus, and when the monitored video has no motion, information indicating that the video has no motion is set. An intermittent recording device, wherein the data is stored in the storage element at regular time intervals.
JP23737597A 1997-09-02 1997-09-02 Intermittent recording device Expired - Fee Related JP4115558B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP23737597A JP4115558B2 (en) 1997-09-02 1997-09-02 Intermittent recording device
KR1019970078872A KR100255244B1 (en) 1997-09-02 1997-12-30 Intermittent recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23737597A JP4115558B2 (en) 1997-09-02 1997-09-02 Intermittent recording device

Publications (2)

Publication Number Publication Date
JPH1198455A true JPH1198455A (en) 1999-04-09
JP4115558B2 JP4115558B2 (en) 2008-07-09

Family

ID=17014463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23737597A Expired - Fee Related JP4115558B2 (en) 1997-09-02 1997-09-02 Intermittent recording device

Country Status (2)

Country Link
JP (1) JP4115558B2 (en)
KR (1) KR100255244B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008131572A (en) * 2006-11-24 2008-06-05 Toshiba Corp Monitoring camera apparatus and photographing method of same
JP2010161651A (en) * 2009-01-08 2010-07-22 Hitachi Ltd Monitoring recorder, monitoring system, and monitoring recording method
CN102045505A (en) * 2009-10-13 2011-05-04 株式会社尼康 Imaging device and image processing apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6336686A (en) * 1986-07-31 1988-02-17 Canon Inc Image information recorder
JPH01177195A (en) * 1988-01-06 1989-07-13 Oki Electric Ind Co Ltd Supervising device
JPH0799605A (en) * 1993-08-04 1995-04-11 Matsushita Electric Ind Co Ltd Video camera system
JPH07177462A (en) * 1993-12-21 1995-07-14 Toshiba Corp Video recording and reproducing device
JPH07212700A (en) * 1994-01-14 1995-08-11 Toshiba Corp Video tape recorder with variable video recording speed
JPH0951527A (en) * 1995-08-08 1997-02-18 Canon Inc Monitor system
JPH0981233A (en) * 1995-09-18 1997-03-28 Mitsubishi Electric Corp Monitor and control supporting device
JPH09214926A (en) * 1996-02-06 1997-08-15 Ricoh Co Ltd Information recording and reproducing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6336686A (en) * 1986-07-31 1988-02-17 Canon Inc Image information recorder
JPH01177195A (en) * 1988-01-06 1989-07-13 Oki Electric Ind Co Ltd Supervising device
JPH0799605A (en) * 1993-08-04 1995-04-11 Matsushita Electric Ind Co Ltd Video camera system
JPH07177462A (en) * 1993-12-21 1995-07-14 Toshiba Corp Video recording and reproducing device
JPH07212700A (en) * 1994-01-14 1995-08-11 Toshiba Corp Video tape recorder with variable video recording speed
JPH0951527A (en) * 1995-08-08 1997-02-18 Canon Inc Monitor system
JPH0981233A (en) * 1995-09-18 1997-03-28 Mitsubishi Electric Corp Monitor and control supporting device
JPH09214926A (en) * 1996-02-06 1997-08-15 Ricoh Co Ltd Information recording and reproducing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008131572A (en) * 2006-11-24 2008-06-05 Toshiba Corp Monitoring camera apparatus and photographing method of same
JP2010161651A (en) * 2009-01-08 2010-07-22 Hitachi Ltd Monitoring recorder, monitoring system, and monitoring recording method
CN102045505A (en) * 2009-10-13 2011-05-04 株式会社尼康 Imaging device and image processing apparatus
JP2011103642A (en) * 2009-10-13 2011-05-26 Nikon Corp Imaging device and image processing apparatus
US8515237B2 (en) 2009-10-13 2013-08-20 Nikon Corporation Imaging device and image processing apparatus

Also Published As

Publication number Publication date
JP4115558B2 (en) 2008-07-09
KR19990028193A (en) 1999-04-15
KR100255244B1 (en) 2000-06-01

Similar Documents

Publication Publication Date Title
US6167186A (en) Video recording device for retroactively reproducing a video image of an event, while also recording images in real time
KR100213055B1 (en) Recording media saving type recording method of a supervisory system
JP4115558B2 (en) Intermittent recording device
WO2001089218A1 (en) Recorder
JPH1118076A (en) Video recorder for monitor camera or the like
KR100255245B1 (en) Magnetic intermittent recording device
JPH08242423A (en) Disk recording and reproducing device
US5644447A (en) Recording or reproducing apparatus having function of searching for unrecorded part
JP2582353B2 (en) Image information processing device
JPS62173863A (en) Image pickup device
US6516133B1 (en) Method for backward reproduction in a time-lapse video recorder
US6272280B1 (en) Apparatus for reproducing image data from a tape-shaped recording medium
JPH06325333A (en) Magnetic recording and reproducing device for monitoring
US6411769B1 (en) Method for determining the switching time of intermittent recording state
JP3365561B2 (en) Imaging device
US6327104B1 (en) Magnetic recording and reproducing apparatus comprising a magnetic head clogging detecting unit
US20030059204A1 (en) Video recording apparatus and video recording method
JP2679198B2 (en) Magnetic recording / reproducing device
KR19990028184A (en) Video recorder
KR19990054062A (en) Time-lapse recording device and recording method of digital VSI
JP3029130B2 (en) Rotating head type playback device
JPH07121842A (en) Video tape recorder
JP2002185898A (en) Electronic camera
JPS63271748A (en) Magnetic recording and reproducing device
KR20020078651A (en) Time lapse record/play apparatus and recording control method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040830

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070130

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070418

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070619

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070810

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20071030

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080121

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080212

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080219

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080318

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080416

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110425

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110425

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120425

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130425

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140425

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees