公开(公告)号：US4404605A

公开(公告)日：1983-09-13

申请号：US259959

申请日：1981-05-04

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: H04N5/783 ,  G11B5/58 ,  G11B5/588 ,  G11B5/52 ,  G11B21/10 ,  G11B21/18

CPC classification number: G11B5/588

Abstract: A video tape recording/reproducing apparatus for reproducing video signals recorded in successive parallel tracks on a magnetic tape includes a magnetic head for scanning the tracks to reproduce the signals recorded therein; a bi-morph leaf for deflecting the head in a direction transverse to the direction along the tracks; a controllable oscillator for supplying a wobbling signal to the bi-morph leaf so as to cause the latter to deflect the head to oscillate in a transverse direction with respect to the tracks, whereby the signals reproduced by the head are amplitude modulated at the frequency of the wobbling signal; a tracking error detecting loop for supplying a tracking error signal, corresponding to deviation of the head from the respective track being scanned, to the bi-morph leaf so as to control the latter to correct the deviation; and a signal detecting loop for detecting the fundamental and second harmonic components of the amplitude modulated signals reproduced by the head and for controlling the amplitude of the wobbling signal from the controllable oscillator in response to a ratio of the levels of the second and fundamental harmonic components so as to reduce the amplitude of the wobbling signal for small tracking errors and to increase the amplitude of the wobbling signal for large tracking errors.

Abstract translation: 用于再现记录在磁带上的连续平行轨道中的视频信号的录像带记录/再现装置包括用于扫描轨道以再现记录在其中的信号的磁头; 一个双变形叶片，用于在横向于沿着轨道的方向的方向上偏转头部; 一个可控振荡器，用于向双变形叶提供摆动信号，以便使该偏振信号相对于轨道在横向方向上偏转头部，由头部再现的信号以 摆动信号; 跟踪误差检测回路，用于将对应于被扫描的相应轨迹的偏差对应于跟踪误差信号提供给双变形叶，以便控制误差信号来纠正偏差; 以及信号检测回路，用于检测头部再现的调幅信号的基波和二次谐波分量，并响应于第二和基本谐波分量的电平比率控制来自可控振荡器的摆动信号的振幅 以减小用于小的跟踪误差的摆动信号的幅度，并且为了大的跟踪误差增加摆动信号的幅度。

公开(公告)号：US4404601A

公开(公告)日：1983-09-13

申请号：US232014

申请日：1981-02-06

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: G11B5/588 ,  H04N5/783

CPC classification number: H04N5/783 ,  G11B5/588

Abstract: A video tape recording/reproducing apparatus for reproducing video signals recorded in successive parallel tracks on a magnetic tape includes a magnetic head for scanning the tracks to reproduce signals recorded therein; a bi-morph leaf for deflecting the head in a direction transverse to the direction along the tracks; a synchronizing signal forming circuit for producing substitute vertical synchronizing signals having correct vertical phase continuity for any of different reproducing modes, regardless of any phase discontinuity in the reproduced vertical synchronizing signals included with the video signals, the substitute vertical synchronizing signals being produced in response to either the reproduced vertical synchronizing signals or a speed ratio signal corresponding to the ratio of the speed of advancement of the tape in the reproducing mode to that in the recording mode, with the speed ratio signal being produced in response to the reproduced horizontal synchronizing signals included with the video signals; and a drive signal circuit for producing a drive signal which includes a head jump signal component and supplying the drive signal to the bi-morph leaf so as to control the latter to deflect the head to accurately scan the tracks, the drive signal circuit including a phase difference detecting circuit for producing a phase difference signal in response to the phase difference between the substitute vertical synchronizing signals and a reference vertical synchronizing signal, and a jump signal forming circuit producing the head jump signal component in response to the phase difference signal and the speed ratio signal.

Abstract translation: 用于再现记录在磁带上的连续并行轨道中的视频信号的录像带记录/再现装置包括用于扫描轨道以再现记录在其中的信号的磁头; 一个双变形叶片，用于在横向于沿着轨道的方向的方向上偏转头部; 同步信号形成电路，用于产生具有用于任何不同再现模式的正确垂直相位连续性的替代垂直同步信号，而不管视频信号包括的再现垂直同步信号中的任何相位不连续性，替代垂直同步信号是响应于 再现的垂直同步信号或与再现模式中的磁带的前进速度与记录模式中磁带的前进速度的比率相对应的速度比信号，其中响应于再现的水平同步信号产生的速比信号 与视频信号; 以及驱动信号电路，用于产生包括头跳信号分量并将驱动信号提供给双变形叶的驱动信号，以便控制其驱动信号以使头部偏转以精确地扫描轨迹，驱动信号电路包括一 相位差检测电路，用于响应于替代垂直同步信号和参考垂直同步信号之间的相位差产生相位差信号，以及跳变信号形成电路，响应于相位差信号产生头跳信号分量， 速比信号。

公开(公告)号：US4326228A

公开(公告)日：1982-04-20

申请号：US126019

申请日：1980-02-29

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: G11B5/53 ,  G11B5/588 ,  G11B5/592 ,  H02N2/04 ,  G11B21/18 ,  G11B21/24

CPC classification number: G11B5/588 ,  G11B5/592

Abstract: In apparatus for supporting a magnetic transducer or head in a video tape recorder and which includes a cantilevered support member mounted at one end, for example, on a rotary portion of a tape guide drum, with the head secured on the opposite or free end of the support member in transducing relation to the tape wound about the drum; at least a part of the support member extending from its mounted end is constituted by a bi-morph leaf, and conductive layers are bonded to opposite surfaces of the bi-morph leaf and are absent from at least the free end portion of the support member so that flexing of the bi-morph leaf occurs between the conductive layers in response to the application of a drive signal to the conductive layers for deflecting the head laterally in respect to the plane of movement of the head with the rotary drum portion, and such flexing is excluded from at least the free end portion of the support member for facilitating the secure attachment of the head thereto and for minimizing the angular deviation of the active face of the head from the tape that accompanies the lateral deflecting of the head.

Abstract translation: 在用于在磁带录像机中支撑磁性换能器或头部的装置中，其包括安装在一端的悬臂支撑构件，例如安装在导带鼓的旋转部分上，其中头部固定在 所述支撑构件与缠绕在所述滚筒上的所述带传导关系; 从其安装的端部延伸的支撑构件的至少一部分由双变形叶片构成，并且导电层结合到双变形叶片的相对表面，并且至少在支撑构件的自由端部分中不存在 使得响应于向导电层施加驱动信号而在导电层之间发生双向叶片的弯曲，以使头部相对于具有旋转鼓部分的头部的移动平面侧向偏转，并且 从支撑构件的至少自由端部排除挠曲，以便于头部牢固地附接到其上，并且使头部的主动面与伴随头部的横向偏转的带的角度偏差最小化。

公开(公告)号：US4296443A

公开(公告)日：1981-10-20

申请号：US14764

申请日：1979-02-23

Applicant: Hitoshi Sakamoto ,  Yoshiaki Wakisaka

Inventor： Hitoshi Sakamoto ,  Yoshiaki Wakisaka

IPC: H04N5/7826 ,  G11B5/588 ,  G11B5/592 ,  H04N5/783 ,  H04N5/78

CPC classification number: G11B5/588 ,  G11B5/592

Abstract: In an apparatus for reproducing video or other information signals recorded in successive parallel tracks extending obliquely on a magnetic tape or other record medium which is adapted to be longitudinally advanced, and with each of the tracks containing a positional signal, for example, constituted by a vertical synchronizing signal, at a predetermined position along the respective track, a magnetic head or transducer is movable in the direction generally along the tracks for reproducing the information and positional signals recorded therein and is mounted or supported by a bi-morph leaf or other transducer deflecting device which is operative, in response to the reception of an electrical drive signal, for deflecting the transducer or head in a direction transverse to the direction along the tracks, a circuit detects a time base error of the positional signal reproduced from each of the tracks, and a control circuit for providing the electrical drive signal to the transducer deflecting device is effective to vary such drive signal in accordance with the detected time base error. A time base variation of the reproduced signals is further detected, for example, in respect to the successive horizontal synchronizing signals of the reproduced video signals, and the electrical drive signal for the transducer deflecting device is also varied in accordance with such detected time base variation.

Abstract translation: 在用于再现以适于纵向前进的磁带或其他记录介质上倾斜延伸的连续平行轨道中的视频或其他信息信号的装置中，并且每个轨道包含位置信号，例如由 垂直同步信号，沿着相应轨道的预定位置，磁头或换能器可沿大体上沿轨道的方向移动，用于再现记录在其中的信息和位置信号，并由双向叶片或其它换能器 偏转装置响应于电驱动信号的接收而操作，用于沿着与轨道的方向横切的方向偏转换能器或头部，电路检测从每个的再现的位置信号的时基误差 轨道和用于向换能器偏转提供电驱动信号的控制电路 根据检测到的时基误差来改变这种驱动信号是有效的。 再现信号的时基变化例如相对于再现的视频信号的连续水平同步信号被进一步检测，并且换能器偏转装置的电驱动信号也根据这种检测的时基变化而变化 。

公开(公告)号：US4258389A

公开(公告)日：1981-03-24

申请号：US5794

申请日：1979-01-23

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: H04N5/93 ,  G11B20/02 ,  H04N5/04 ,  H04N5/06 ,  H04N5/10 ,  H04N5/08

CPC classification number: H04N5/10

Abstract: A circuit for forming a vertical synchronizing pulse at the end of a field of a composite video signal utilizes the characteristic of the video signal that the equalizing pulses in the vertical blanking interval have a pulse width one-half that of the horizontal synchronizing pulses in the composite video signal. Accordingly, the circuit includes a discriminating pulse generator which generates a discriminating pulse whose duration ends before the trailing edge of a horizontal synchronizing pulse, but after the trailing edge of an equalizing pulse; a comparator, such as a D-type flip-flop, for comparing the timing of the discriminating pulses with that of the equalizing and horizontal synchronizing pulses to discriminate the equalizing pulses on the basis of such comparison; and a generator for generating the vertical synchronizing pulse in response to the discrimination of the equalizing pulses.

Abstract translation: 用于在复合视频信号的场的末端形成垂直同步脉冲的电路利用视频信号的特性，即垂直消隐间隔中的均衡脉冲具有脉冲宽度为水平同步脉冲的两倍的脉冲宽度 复合视频信号。 因此，电路包括识别脉冲发生器，其产生识别脉冲，其持续时间在水平同步脉冲的后沿之前但在均衡脉冲的后沿之后结束; 诸如D型触发器的比较器，用于将识别脉冲的定时与均衡和水平同步脉冲的定时进行比较，以基于这种比较来区分均衡脉冲; 以及用于响应于所述均衡脉冲的识别而产生垂直同步脉冲的发生器。

公开(公告)号：US4115800A

公开(公告)日：1978-09-19

申请号：US841982

申请日：1977-10-13

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: H04N5/782 ,  H04N9/00 ,  H04N5/78

CPC classification number: H04N5/782 ,  H04N9/00

Abstract: Color video signal recording and/or reproducing apparatus comprising a first circuit for generating a first signal having the same frequency as the field frequency of the color video signal, and a second circuit for generating a second signal that indicates a field interval having a predetermined phase relationship between a horizontal synchronizing signal and a color subcarrier signal. The first and second signals are combined to form a composite control signal, which is then recorded in a control track on a magnetic tape in the conventional manner. A comparison circuit is included for comparing the composite control signal reproduced from the tape with a reference control signal, the reference control signal being composed of a third signal having a frequency equal to the field frequency and a fourth signal indicating a field interval, in which a phase relationship between a reference horizontal synchronizing signal and a reference color subcarrier signal is equal to the predetermined phase relationship. Thus, during playback the movement of the magnetic tape is controlled in response to the output of the comparison circuit so that the phase of the composite control signal reproduced from the tape coincides with that of the reference control signal.

Abstract translation: 彩色视频信号记录和/或再现装置，包括用于产生具有与彩色视频信号的场频相同频率的第一信号的第一电路，以及用于产生指示具有预定相位的场间隔的第二信号的第二电路 水平同步信号和彩色副载波信号之间的关系。 第一和第二信号被组合以形成复合控制信号，然后以常规方式将其记录在磁带上的控制轨道中。 包括比较电路，用于将从磁带再现的复合控制信号与参考控制信号进行比较，该参考控制信号由具有等于场频的频率的第三信号和指示场间隔的第四信号组成，其中 参考水平同步信号与参考彩色副载波信号之间的相位关系等于预定的相位关系。 因此，在重放期间，响应于比较电路的输出来控制磁带的运动，使得从磁带再现的复合控制信号的相位与参考控制信号的相位一致。

公开(公告)号：US11536516B2

公开(公告)日：2022-12-27

申请号：US16646045

申请日：2017-09-13

Applicant: Hitoshi Sakamoto

Inventor： Hitoshi Sakamoto

IPC: F27D3/00 ,  F27B9/02 ,  F27D1/18 ,  C22F1/04 ,  F27D7/04 ,  F27D99/00

Abstract: A heat-treating furnace has: a rotary shaft; a rotary bottom surface pivotally supported by the rotary shaft and rotates; a plurality of workpiece storage chambers arranged on the rotary bottom surface in a multi-stage torus configuration around an axis of the rotary shaft as a center; a hollow bell-shaped hot-blast guide disposed in a center of the torus configuration on the rotary bottom surface around the axis of the rotary shaft as a center so as to decrease a volumetric capacity in the furnace and to adjust a quantity of a hot blast fed in from above itself into the workpiece storage chamber on each stage; a furnace body bottom surface spaced away from the rotary bottom surface; and a furnace body lateral surface disposed on the furnace body bottom surface.

公开(公告)号：US20200278153A1

公开(公告)日：2020-09-03

申请号：US16646045

申请日：2017-09-13

Applicant: Hitoshi SAKAMOTO

Inventor： Hitoshi SAKAMOTO

IPC: F27D3/00 ,  F27B9/02 ,  F27D7/04 ,  F27D1/18 ,  C22F1/04

Abstract: A heat-treating furnace has: a rotary shaft; a rotary bottom surface pivotally supported by the rotary shaft and rotates; a plurality of workpiece storage chambers arranged on the rotary bottom surface in a multi-stage torus configuration around an axis of the rotary shaft as a center; a hollow bell-shaped hot-blast guide disposed in a center of the torus configuration on the rotary bottom surface around the axis of the rotary shaft as a center so as to decrease a volumetric capacity in the furnace and to adjust a quantity of a hot blast fed in from above itself into the workpiece storage chamber on each stage; a furnace body bottom surface spaced away from the rotary bottom surface; and a furnace body lateral surface disposed on the furnace body bottom surface.

公开(公告)号：US09605907B2

公开(公告)日：2017-03-28

申请号：US13638474

申请日：2011-03-15

Applicant: Hitoshi Sakamoto ,  Minoru Yoshikawa ,  Kenichi Inaba ,  Takeya Hashiguchi

Inventor： Hitoshi Sakamoto ,  Minoru Yoshikawa ,  Kenichi Inaba ,  Takeya Hashiguchi

IPC: F28D15/02 ,  H01L23/427 ,  H01L23/467

CPC classification number: F28D15/0266 ,  H01L23/427 ,  H01L23/467 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A phase change cooler of the present invention includes: a plurality of heat receiving units that cause a refrigerant to change phase from liquid to gas by heat received from a heat generating body; one heat radiating unit that causes the refrigerant to change phase from gas to liquid by radiating heat to surrounding area; a plurality of vapor tubes that respectively transport the refrigerant in a vapor state from each of the heat receiving units to the heat radiating unit; a liquid tube that respectively circulates the refrigerant in a liquid state from the heat radiating unit to each of the heat receiving units; and a bypass tube that connects each of the heat receiving units to each other.

公开(公告)号：US09557117B2

公开(公告)日：2017-01-31

申请号：US13062258

申请日：2009-10-07

Applicant: Minoru Yoshikawa ,  Hitoshi Sakamoto ,  Takeya Hashiguchi

Inventor： Minoru Yoshikawa ,  Hitoshi Sakamoto ,  Takeya Hashiguchi

IPC: F28D15/00 ,  F28D15/02 ,  H01L23/427 ,  F28F9/02

CPC classification number: F28D15/0266 ,  F28F9/026 ,  H01L23/427 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A cooling structure is provided which includes: an evaporation chamber defined by a base plate having a boiling surface, a ceiling plate and a side wall; a plurality of plate-shaped fins arranged in parallel on the boiling surface, defining a plurality of coolant passages in the evaporation chamber, a liquid phase coolant flows through the coolant passages in one direction from one end portion thereof toward another end portion; a liquid return port formed in the side wall facing the one end portion of coolant passages; and a vapor port formed in the ceiling plate facing the other end portion of coolant passages, wherein space is formed between the ceiling plate and an upper end portion of the plurality of plate-shaped fins, the space expanding gradually from a liquid return port side of the side wall toward the vapor port.

Abstract translation: 提供了一种冷却结构，其包括：由具有沸腾表面的底板，顶板和侧壁限定的蒸发室; 在沸腾表面上平行布置的多个板状翅片，在蒸发室中限定多个冷却剂通道，液相冷却剂从一个端部向另一端部沿一个方向流过冷却剂通道; 形成在面向冷却剂通道的一个端部的侧壁中的液体返回口; 以及形成在所述顶板中的与所述冷却剂通路的另一端部分形成的蒸气口，其中，在所述顶板与所述多个板状翅片的上端部之间形成有空间，所述空间从液体返回口侧逐渐扩展 的侧壁朝向蒸汽口。