公开(公告)号：US5212797A

公开(公告)日：1993-05-18

申请号：US827228

申请日：1992-01-28

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

IPC分类号： G02B7/28 ,  G03B7/20 ,  H04N1/21 ,  H04N5/232

CPC分类号： H04N1/2129 ,  G02B7/282 ,  G03B7/20 ,  H04N1/2112 ,  H04N5/23209 ,  H04N2101/00

摘要： A multiple-CPU system including a main CPU and at least one subordinate CPU connected thereto. Both the main and subordinate CPU are provided with a respective voltage detector circuit for detecting when a main or primary power supply voltage for the CPU's has dropped below a predetermined threshold level. When the respective detector circuit outputs a signal indicating detection of the drop in main power supply voltage, the respective CPU is placed in a standby state. However, the threshold level of the detector circuit of the main CPU is set to a voltage lower than the threshold level of the detector circuit of the subordinate CPU. As a result, the subordinate CPU is placed in a standby state before the main CPU. The main CPU is equipped with an auxiliary power supply so that when the subordinate CPU is placed in a standby state, automatic recovery is thereafter carried out by the main CPU.

摘要翻译： 包括主CPU和连接到其的至少一个从属CPU的多CPU系统。 主CPU和下位CPU均设置有相应的电压检测器电路，用于检测CPU的主电源电压或主电源电压何时降低到预定阈值电平以下。 当各检测器电路输出表示检测到主电源电压下降的信号时，各CPU处于待机状态。 然而，主CPU的检测器电路的阈值电平被设置为低于下级CPU的检测器电路的阈值电平的电压。 因此，下级CPU在主CPU之前处于待机状态。 主CPU配有辅助电源，当下级CPU处于待机状态时，主CPU自动恢复。

公开(公告)号：US5189570A

公开(公告)日：1993-02-23

申请号：US746186

申请日：1991-08-15

申请人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

发明人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： A magnetic head advancing apparatus which advances a magnetic head to be brought into contact with a magnetic recording medium (head loading) in response to a latch-type solenoid when a power supply switch is closed. The magnetic head is separated from the magnetic recording medium (head unloading) in response to a latch-type solenoid when the power supply switch is opened, when the power supply voltage drops below a predetermined level, or when the power supply (a battery) is ejected from the apparatus. This makes it possible to prevent local permanent deformation of a magnetic disk caused by prolonged abutting contact between the magnetic head and the magnetic disk.

摘要翻译： 一种磁头前进装置，当电源开关闭合时，磁头前进装置使磁头与磁记录介质接触（磁头加载），以响应闩锁型螺线管。 当电源开关打开时，当电源电压下降到预定水平以下时，或者当电源（电池）电压低于预定值时，磁头与磁记录介质（磁头卸载）分离， 从设备中弹出。 这使得可以防止由于磁头和磁盘之间的较长的接触而导致的磁盘的局部永久变形。

公开(公告)号：US5091806A

公开(公告)日：1992-02-25

申请号：US327132

申请日：1989-03-22

申请人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

发明人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

IPC分类号： G11B21/08 ,  G11B5/012 ,  G11B5/09 ,  G11B5/55 ,  G11B19/02 ,  G11B20/10 ,  G11B21/10 ,  G11B27/10

CPC分类号： G11B19/02 ,  G11B20/10009 ,  G11B27/105 ,  G11B5/012 ,  G11B5/09 ,  G11B5/553

摘要： The gain of an envelope detector circuit for detecting the envelope of a signal read from a magnetic head is capable of being changed over between two, namely high and low, stages. The gain of the envelope detector circuit is raised when track search processing is performed. When peak position detection processing is executed for detecting the peak position of the envelope of a recorded signal with regard to a designated track, first the gain of the envelope detector circuit is raised. The gain is lowered when the envelope saturates. This makes it comparatively easy to perform envelope detection, shortens the time required and makes it possible to use even a relatively low-precision A/D converter in the envelope detector circuit.

摘要翻译： 用于检测从磁头读取的信号的包络的包络检测器电路的增益能够在两个（即高和低）级之间改变。 当执行轨道搜索处理时，增加包络检测器电路的增益。 当执行峰值位置检测处理以检测关于指定轨道的记录信号的包络的峰值位置时，首先提高包络检测器电路的增益。 当信封饱和时，增益降低。 这使得相对容易地执行包络检测，缩短所需的时间，并且使得即使在包络检测器电路中使用相对低精度的A / D转换器也是可能的。

公开(公告)号：US5121218A

公开(公告)日：1992-06-09

申请号：US315441

申请日：1989-02-24

申请人： Izumi Miyake ,  Kiyotaka Kaneko ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

发明人： Izumi Miyake ,  Kiyotaka Kaneko ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

IPC分类号： G02B7/28 ,  G03B7/20 ,  H04N1/21 ,  H04N5/232

CPC分类号： H04N1/2129 ,  G02B7/282 ,  G03B7/20 ,  H04N1/2112 ,  H04N5/23209 ,  H04N2101/00 ,  Y10S358/906

摘要： A recording/playback apparatus is provided with a plurality of controllers (inclusive of CPU's) which, by communicating with one another, share control of each of the components of the recording/playback apparatus or of the entire apparatus. Communication among the controllers is performed in the second half of one period of a signal related to the rotational reference phase of a rotating recording medium. This makes it possible for control requiring high precision to be performed in the first half of the aforementional period without being affected by high-priority interrupts which accompany communication control. Further, in order that the aforementioned communication may be carried out in the second half of the above mentioned period, message editing is performed in the first half of the same period. This enables prompt communication processing during the short time in the second half of the period without an unnecessary waste of time.

摘要翻译： 记录/重放装置设置有多个控制器（包括CPU），通过彼此通信，共享对记录/重放装置的每个部件或整个装置的控制。 在与旋转记录介质的旋转基准相位相关的信号的一个周期的后半段中进行控制器之间的通信。 这使得可以在不受高优先级中断伴随通信控制的影响的情况下在上一个时期的前半部分中执行需要高精度的控制。 此外，为了在上述期间的后半部分进行上述通信，在同一时期的前半部分进行消息编辑。 这使得能够在下半期的短时间内进行迅速的通信处理，而不会浪费时间。

公开(公告)号：US5086345A

公开(公告)日：1992-02-04

申请号：US334564

申请日：1989-04-07

申请人： Yoshio Nakane ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yutaka Maeda ,  Hiroshi Shimaya

发明人： Yoshio Nakane ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yutaka Maeda ,  Hiroshi Shimaya

IPC分类号： G11B5/012 ,  G11B19/02 ,  G11B27/10 ,  G11B27/11 ,  G11B27/36 ,  G11B33/10 ,  H04N1/21

CPC分类号： H04N1/2112 ,  G11B19/02 ,  G11B27/105 ,  G11B27/11 ,  G11B27/36 ,  G11B33/10 ,  G11B5/012 ,  H04N1/2129 ,  H04N2101/00 ,  H04N2201/212 ,  H04N2201/3243 ,  H04N2201/3277 ,  Y10S358/906

摘要： In a system including a still video camera and a playback device capable of being connected thereto, the playback device stored track information (such as data representing the field/frame recording and the envelope peak position) detected in a playback operation in a memory thereof corresponding to a track number. When the power of the playback device or the like is turned off, the track information is transferred from the playback device to the camera side and is stored in a memory of the camera side. When the playback device achieves thereafter a playback operation, the track information is again transferred to the playback device so as to be used for the playback operation. The track information can also be used in an erase operation on the camera side or in the playback device. In addition, track information used in a recording operation of the camera is stored in a memory thereof corresponding to a track member. When the playback device is connected to the camera and a mode thereof is changed over to a playback mode, the track information is transferred from the camera to the playback device, thereby storing the track information in a memory of the playback device. The track information is used when the playback device conducts a playback operation.

摘要翻译： 在包括能够连接到其上的静止摄像机和播放装置的系统中，重放装置存储在其存储器中的重放操作中检测到​​的轨道信息（诸如表示场/帧记录的数据和包络峰值位置），​​对应于 到一个轨道号。 当播放装置等的电源关闭时，轨道信息从重放装置传送到相机侧，并被存储在相机侧的存储器中。 当再现装置此后实现重放操作时，轨道信息被再次传送到回放装置，以便用于重放操作。 轨道信息也可以用于相机侧或回放装置中的擦除操作。 此外，在相机的记录操作中使用的轨道信息被存储在与轨道构件对应的存储器中。 当播放设备连接到相机并且其模式被切换到重放模式时，轨道信息从相机传送到播放设备，从而将音轨信息存储在播放设备的存储器中。 当播放设备进行播放操作时，使用轨道信息。

公开(公告)号：US5050014A

公开(公告)日：1991-09-17

申请号：US326685

申请日：1989-03-21

申请人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

发明人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

IPC分类号： G11B21/10 ,  G11B5/596

CPC分类号： G11B5/59611 ,  Y10S358/906

摘要： Positioning of a magnetic head for recording a signal on a magnetic recording medium is performed in accordance with an absolute track address system. However, due to mechanical errors, expansion or contraction of the magnetic recording medium caused by changes in temperature or humidity, or small variations between recording apparatuses, a deviation can occur between a position recorded on in the past and a absolute track position thereof. Accordingly, with regard to at least one track that has already been recorded on, the amount of deviation between the peak position of the envelope of a signal on this track and an absolute track position is measured. Then, based upon the measured amount of deviation, the position at which the magnetic head is stopped on the track to be recorded on next is corrected.

摘要翻译： 根据绝对轨道地址系统执行用于在磁记录介质上记录信号的磁头的定位。 然而，由于温度或湿度变化引起的机械误差，磁记录介质的膨胀或收缩，或记录装置之间的小变化，可能会在记录在过去的位置与其绝对轨道位置之间产生偏差。 因此，对于已经记录的至少一个轨道，测量该轨道上的信号的包络的峰值位置与绝对轨道位置之间的偏差量。 然后，基于所测量的偏差量，校正磁头停止在下一记录轨道上的位置。

公开(公告)号：US4972267A

公开(公告)日：1990-11-20

申请号：US363865

申请日：1989-06-09

申请人： Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya ,  Kazuya Oda

发明人： Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya ,  Kazuya Oda

IPC分类号： H04N5/345 ,  H04N5/359 ,  H04N5/361 ,  H04N5/372

CPC分类号： H04N5/361 ,  H04N5/3595 ,  H04N5/372 ,  H04N2101/00 ,  H04N5/3452

摘要： In an electronic still-video camera capable of frame recording using a shutter, read-out is controlled in such a manner that dark currents generated in an imaging device will be equal in both first and second fields. Thereby, the recording of a still-video signal that will provide an excellent and easy-to-view reproduced image that is free of flicker is made possible.

摘要翻译： 在能够使用快门进行帧记录的电子静态摄像机中，以使得成像装置中产生的暗电流在第一场和第二场中都相等的方式控制读出。 因此，能够提供无闪烁的优良且易于观看的再现图像的静止图像信号的记录成为可能。

公开(公告)号：US5101303A

公开(公告)日：1992-03-31

申请号：US327138

申请日：1989-03-22

申请人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

发明人： Yutaka Maeda ,  Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Hiroshi Shimaya

IPC分类号： G11B5/596

CPC分类号： G11B5/59611

摘要： A search range for detecting the peak position of an envelope on a rotating magnetic recording medium is limited to a predetermined range on either side of an absolute track position of each track on the recording medium. A limitation is also placed upon the number of times a magnetic head is fed within this predetermined range. If a peak cannot be decided even when the magnetic head is fed the limited number of times, the final position of the magnetic head is adopted compulsorily as the peak position. As a result it is possible to reduce the time needed for peak position detection processing. When an envelope cannot be detected with the predetermined range, the absolute track position is adopted as the peak position.

摘要翻译： 用于检测旋转磁记录介质上的信封的峰值位置的搜索范围被限制在记录介质上每个磁道的绝对磁道位置的任一侧的预定范围。 磁头在该预定范围内进给的次数也受到限制。 如果即使在磁头供给有限次数时也不能决定峰值，则磁头的最终位置被强制地用作峰值位置。 结果，可以减少峰值位置检测处理所需的时间。 当在预定范围内不能检测到信封时，采用绝对轨道位置作为峰值位置。

公开(公告)号：US4972223A

公开(公告)日：1990-11-20

申请号：US363711

申请日：1989-06-09

申请人： Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

发明人： Kiyotaka Kaneko ,  Izumi Miyake ,  Yoshio Nakane ,  Yutaka Maeda ,  Hiroshi Shimaya

IPC分类号： G03B7/097 ,  H04N5/225 ,  H04N5/235 ,  H04N5/238

CPC分类号： H04N5/2352 ,  G03B7/097

摘要： A camera having an ordinary automatic exposure function which automatically decides a proper shutter speed and f-stop based on the results of photometry is additionally provided with a slow-photography mode. When the camera is set to the slow-photography mode, a predetermined shutter speed and f-stop outside a range of shutter speeds and f-stops capable of being set by ordinary automatic exposure control is set. This makes it possible to photograph night scenes, fireworks displays and the like. Photography is possible even in a light-value region in which the camera shutter would be locked against release in ordinary automatic exposure control owing to too little light.

摘要翻译： 具有普通自动曝光功能的照相机还具有慢拍摄模式，该照相机根据测光结果自动决定适当的快门速度和f-stop。 当相机设置为慢拍摄模式时，设置能够通过普通自动曝光控制设定的快门速度范围和f档位之外的预定快门速度和f-stop。 这使得可以拍摄夜景，烟花表演等。 即使在光线不足的地方也可以进行拍摄，即使在普通的自动曝光控制中，由于光线太少，相机快门将被锁定而不能释放。

公开(公告)号：US4899212A

公开(公告)日：1990-02-06

申请号：US366210

申请日：1989-06-15

申请人： Kiyotaka Kaneko ,  Izumi Miyake ,  Kazuya Oda ,  Yoshio Nakane ,  Hiroshi Shimaya

发明人： Kiyotaka Kaneko ,  Izumi Miyake ,  Kazuya Oda ,  Yoshio Nakane ,  Hiroshi Shimaya

IPC分类号： F02B75/02 ,  H04N9/73

CPC分类号： H04N9/735 ,  F02B2075/025

摘要： A white balance adjusting device for use in a camera which photographs a field and forms a video signal representing the field. In the white balance adjusting device, while a sequential photographing is under way, updating of the color temperature data to be used for adjusting a white balance is prohibited. Therefore, the hues of main objects in the respective frames of still images photographed by the sequential photographic operation remain unchanged, thereby maintaining the homogeneity of the main objects. Also, in the white balance adjusting device, control a device is used to provide a short response time for a quick response property in a still mode and to provide a longer response time in a movie mode when compared with the still mode. As a result, the white balance can be adjusted according to the photographic modes of the camera.

摘要翻译： 一种用于相机中的白平衡调节装置，其对场进行拍摄并形成表示场的视频信号。 在白平衡调整装置中，当进行顺序拍摄时，禁止更新用于调整白平衡的色温数据。 因此，通过顺序拍摄操作拍摄的静止图像的各个帧中的主要对象的色调保持不变，从而保持主要对象的均匀性。 此外，在白平衡调整装置中，控制装置用于为静止模式下的快速响应特性提供短的响应时间，并且与静止模式相比在电影模式中提供较长的响应时间。 因此，可以根据相机的拍摄模式来调节白平衡。