JPH04304783A - Camcorder - Google Patents
CamcorderInfo
- Publication number
- JPH04304783A JPH04304783A JP3068475A JP6847591A JPH04304783A JP H04304783 A JPH04304783 A JP H04304783A JP 3068475 A JP3068475 A JP 3068475A JP 6847591 A JP6847591 A JP 6847591A JP H04304783 A JPH04304783 A JP H04304783A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- noise
- camera
- noise data
- microphone
- 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
Links
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000004044 response Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、レンズ交換可能なカメ
ラ一体型記録装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera-integrated recording device with interchangeable lenses.
【0002】0002
【従来の技術】一体型カムコーダにおいても銀塩カメラ
同様にレンズ交換が可能な交換レンズシステムが考えら
れている。2. Description of the Related Art Interchangeable lens systems have been proposed for integrated camcorders as well, in which lenses can be replaced in the same way as in silver halide cameras.
【0003】図2は従来のレンズ交換型カムコーダを示
す。レンズ光学系1を介して入射された光は、絞り(ア
イリス)2により光量が制限され、撮像素子3の撮像面
上に結像される。撮像素子3に入射された光は、撮像素
子3により光電変換され、撮像信号として出力される。
撮像信号はカメラ信号処理回路4にてγ(ガンマ)変換
等が施され、色信号Cおよび輝度信号Yが映像信号とし
て取り出され、NTSC等のエンコーダ5を経てコンポ
ジット映像信号等の形態でカメラ部より出力される。FIG. 2 shows a conventional lens-interchangeable camcorder. The amount of light incident on the lens optical system 1 is limited by an iris 2, and an image is formed on the imaging surface of the image sensor 3. The light incident on the image sensor 3 is photoelectrically converted by the image sensor 3 and output as an image signal. The image signal is subjected to gamma (gamma) conversion, etc. in the camera signal processing circuit 4, and the color signal C and luminance signal Y are extracted as video signals, which are sent to the camera unit in the form of a composite video signal or the like via an encoder 5 such as NTSC. It is output from
【0004】また、カメラ信号処理回路4から出力され
る輝度信号Yの周波数情報などにより、合焦状態が得ら
れるように合焦制御回路6により所定のアクチュエータ
駆動信号が発生され、レンズ側にカメラ側通信回路8、
レンズ側通信回路12を通じて電気信号が出力される。Further, based on the frequency information of the luminance signal Y outputted from the camera signal processing circuit 4, a predetermined actuator drive signal is generated by the focus control circuit 6 so as to obtain a focused state, and the camera is directed to the lens side. side communication circuit 8,
An electrical signal is output through the lens side communication circuit 12.
【0005】同様に、自動露出を行うために、露出制御
回路7により輝度信号Yが例えば積分等により検波され
、同様にレンズ側に出力される。Similarly, in order to perform automatic exposure, the brightness signal Y is detected by the exposure control circuit 7, for example, by integration, and similarly outputted to the lens side.
【0006】レンズ側では、入力された駆動データに基
づき、光学系1および絞り2がドライバ13,15、ア
クチュエータ14,16によりそれぞれ所定量動かされ
る。On the lens side, the optical system 1 and the aperture 2 are moved by predetermined amounts by drivers 13 and 15 and actuators 14 and 16, respectively, based on input drive data.
【0007】また、カメラ側では、マイク9より入力さ
れた音声信号が、マイクアンプ11により所定量増幅さ
れた後、前記映像信号と共に記録装置17に記録される
。On the camera side, the audio signal inputted from the microphone 9 is amplified by a predetermined amount by the microphone amplifier 11, and then recorded on the recording device 17 together with the video signal.
【0008】[0008]
【発明が解決しようとする課題】しかしながら、上記従
来例では、交換レンズのフォーカス,ズーム,アイリス
等のアクチュエータの駆動音が問題となる。例えば、同
じ駆動音量であってもカメラ側のマイク9の位置により
アクチュエータの駆動音が記録され、従って、これらの
騒音が再生されることがある。However, in the above-mentioned conventional example, driving noise of actuators for focus, zoom, iris, etc. of the interchangeable lens poses a problem. For example, even if the drive volume is the same, the drive sound of the actuator may be recorded depending on the position of the microphone 9 on the camera side, and therefore, these noises may be reproduced.
【0009】本発明の目的は、上記のような問題点を解
決し、再生音のノイズを軽減させることができる記録装
置を提供することにある。An object of the present invention is to provide a recording device that can solve the above-mentioned problems and reduce noise in reproduced sound.
【0010】0010
【課題を解決するための手段】このような目的を達成す
るため、本発明は、着脱可能なレンズ系と、該レンズ系
および絞りを駆動する駆動手段と、装置本体に取り付け
たマイクロホンと、該マイクロホンを介して入力された
音声を記録する音声記録手段とを有するカメラ一体型記
録装置において、予め定めた条件に基づき前記マイクロ
ホンにより集音した前記駆動手段による騒音のデータを
格納した格納手段と、該格納手段からの騒音データに応
じて前記音声記録手段による音声記録周波数帯域を制限
する制限手段とを備えたことを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the present invention comprises a detachable lens system, a driving means for driving the lens system and the diaphragm, a microphone attached to the main body of the device, and a removable lens system. A camera-integrated recording device having an audio recording means for recording audio input through a microphone, a storage means storing data of noise generated by the driving means collected by the microphone based on predetermined conditions; The apparatus is characterized by comprising a limiting means for limiting an audio recording frequency band by the audio recording means in accordance with the noise data from the storage means.
【0011】[0011]
【作用】本発明では、格納手段からの駆動手段騒音デー
タに応じて音声記録手段による音声記録周波数帯域を制
限手段により制限する。In the present invention, the audio recording frequency band by the audio recording means is limited by the limiting means in accordance with the drive means noise data from the storage means.
【0012】0012
【実施例】以下、図面を参照して本発明の実施例を詳細
に説明する。Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
【0013】図1は本発明の一実施例を示す。FIG. 1 shows an embodiment of the present invention.
【0014】自動合焦制御および自動露出制御について
は、従来例と同様であるので説明は省略する。図におい
て、1〜7,9,11、13〜17は図2と同一部分を
示す。22はメモリで、予め定めた条件(例えば、マイ
クロホンの位置)で測定されたアクチュエータ14,1
6の騒音データが格納されている。20はレンズ側通信
回路で、図2図示レンズ側通信回路12と同一の機能を
有する他に、メモリ22から騒音データを読み出すもの
である。21はカメラ側通信回路で、レンズ側通信回路
20からの騒音データに応じてフィルタ10の周波数帯
域を制御するものである。[0014] Automatic focus control and automatic exposure control are the same as those in the conventional example, so their explanation will be omitted. In the figure, 1 to 7, 9, 11, and 13 to 17 indicate the same parts as in FIG. 22 is a memory in which the actuators 14, 1 measured under predetermined conditions (for example, the position of the microphone) are stored.
6 noise data are stored. Reference numeral 20 denotes a lens-side communication circuit which has the same functions as the lens-side communication circuit 12 shown in FIG. Reference numeral 21 denotes a camera-side communication circuit, which controls the frequency band of the filter 10 in accordance with noise data from the lens-side communication circuit 20.
【0015】本実施例では、上記のように構成したので
、カメラ本体にレンズがマウントされると、レンズ側通
信回路20によりメモリ22に格納されている騒音デー
タが読み出され、読み出された騒音データに基づきカメ
ラ側通信回路21によりフィルタ10の周波数帯域が制
御され、マイクロホン9から入力された信号が騒音デー
タに基づき周波数制限される。従って、記録される騒音
レベルが小さくなり、よって、再生された信号に含まれ
る騒音を小さくすることができる。In this embodiment, the configuration is as described above, so that when the lens is mounted on the camera body, the noise data stored in the memory 22 is read out by the lens side communication circuit 20. The frequency band of the filter 10 is controlled by the camera-side communication circuit 21 based on the noise data, and the frequency of the signal input from the microphone 9 is limited based on the noise data. Therefore, the recorded noise level is reduced, and therefore the noise contained in the reproduced signal can be reduced.
【0016】本実施例では、周波数帯域制限をカメラ本
体にレンズがマウントされた場合に行う例を説明したが
、周波数帯域制限をアクチュエータ14,16を駆動す
る時にのみ行うようにしても良い。In this embodiment, an example has been described in which the frequency band limitation is performed when a lens is mounted on the camera body, but the frequency band limitation may be performed only when the actuators 14 and 16 are driven.
【0017】[0017]
【発明の効果】以上説明したように、本発明によれば、
レンズ、絞り駆動手段の騒音データに基づいて、マイク
入力信号の周波数帯域を制限するようにしたので、記録
されるレンズ、絞り駆動手段の騒音を所定レベル以下に
でき、再生時におけるわずらわしいノイズを軽減するこ
とができるという効果がある。[Effects of the Invention] As explained above, according to the present invention,
Since the frequency band of the microphone input signal is limited based on the noise data of the lens and aperture drive means, the recorded noise of the lens and aperture drive means can be kept below a predetermined level, reducing bothersome noise during playback. The effect is that it can be done.
【図1】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【図2】従来のカメラ一体型記録装置を示すブロック図
である。FIG. 2 is a block diagram showing a conventional camera-integrated recording device.
1 レンズ光学系 2 絞り 3 光電変換素子 4 信号処理回路 5 エンコーダ 6 合焦制御回路 7 露出制御回路 9 マイク 10 フィルタ 11 アンプ 13,15 ドライバ 14,16 アクチュエータ 17 記録装置 20 レンズ側通信回路 21 カメラ側通信回路 22 メモリ 1 Lens optical system 2 Aperture 3 Photoelectric conversion element 4 Signal processing circuit 5 Encoder 6 Focus control circuit 7 Exposure control circuit 9. Microphone 10 Filter 11 Amplifier 13,15 Driver 14, 16 Actuator 17 Recording device 20 Lens side communication circuit 21 Camera side communication circuit 22 Memory
Claims (3)
よび絞りを駆動する駆動手段と、装置本体に取り付けた
マイクロホンと、該マイクロホンを介して入力された音
声を記録する音声記録手段とを有するカメラ一体型記録
装置において、予め定めた条件に基づき前記マイクロホ
ンにより集音した前記駆動手段による騒音のデータを格
納した格納手段と、該格納手段からの騒音データに応じ
て前記音声記録手段による音声記録周波数帯域を制限す
る制限手段とを備えたことを特徴とするカメラ一体型記
録装置。1. A device comprising: a removable lens system, a driving means for driving the lens system and an aperture, a microphone attached to the main body of the device, and an audio recording means for recording audio input through the microphone. In the camera-integrated recording device, a storage means stores data on noise generated by the driving means collected by the microphone based on predetermined conditions, and audio recording by the audio recording means according to the noise data from the storage means. A camera-integrated recording device characterized by comprising: a limiting means for limiting a frequency band.
動手段によりレンズ系および絞りが駆動されるときにの
み音声記録周波数帯域を制限することを特徴とするカメ
ラ一体型記録装置。2. The camera-integrated recording device according to claim 1, wherein the limiting means limits the audio recording frequency band only when the lens system and the aperture are driven by the driving means.
ンズ内に備えたことを特徴とするカメラ一体型記録装置
。3. The camera-integrated recording device according to claim 1, further comprising storage means within said lens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3068475A JPH04304783A (en) | 1991-04-01 | 1991-04-01 | Camcorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3068475A JPH04304783A (en) | 1991-04-01 | 1991-04-01 | Camcorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04304783A true JPH04304783A (en) | 1992-10-28 |
Family
ID=13374750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3068475A Pending JPH04304783A (en) | 1991-04-01 | 1991-04-01 | Camcorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04304783A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8253823B2 (en) | 2008-04-28 | 2012-08-28 | Panasonic Corporation | Camera body, interchangeable lens, and imaging apparatus |
-
1991
- 1991-04-01 JP JP3068475A patent/JPH04304783A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8253823B2 (en) | 2008-04-28 | 2012-08-28 | Panasonic Corporation | Camera body, interchangeable lens, and imaging apparatus |
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