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公开(公告)号：US4422108A
公开(公告)日：1983-12-20
申请号：US383958
申请日：1982-06-01
摘要： A tape recorder comprises, in its signal recording path, a variable gain circuit compensating the sound recording sensitivity of a magnetic tape and two variable equalizers compensating the frequency characteristic of the magnetic tape in the intermediate and high frequency ranges respectively. Reference signals at three different frequencies are successively supplied to the signal recording path to be recorded on the magnetic tape, and the signals of different reference frequencies are successively reproduced from the magnetic tape to be then arithmetically processed so as to optimize the gain of the variable gain circuit and the degree of frequency characteristic compensation by the first and second variable equalizers.
摘要翻译： 磁带录像机在其信号记录路径中包括补偿磁带的录音灵敏度的可变增益电路和分别补偿中频和高频范围内磁带的频率特性的两个可变均衡器。 将三个不同频率的参考信号连续地提供给要记录在磁带上的信号记录路径，并且从磁带连续再现不同参考频率的信号，然后进行算术处理，以便优化变量的增益 增益电路和第一和第二可变均衡器的频率特性补偿程度。
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2.发明授权Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape 失效磁记录和再现设备可以自动调整到每个单独的磁带
公开(公告)号：US4422109A
公开(公告)日：1983-12-20
申请号：US390884
申请日：1982-06-22
CPC分类号： G11B23/0007 , G11B5/02 , G11B5/035 , H03G5/00
摘要： A magnetic recording and reproducing apparatus comprises a source for producing test signals, a variable-gain amplifier, an equalizer, a recording bias generating circuit, a control unit for supplying control signals to the amplifier, equalizer and recording bias generating circuit, a memory and an operating circuit unit. The apparatus is automatically adjusted to each individual magnetic tape in use in such a manner that: a first test signal from the source is recorded on a magnetic tape with a preset bias control signal, the recorded first test signal is reproduced, the bias control signal is adjusted to provide a maximum HF saturation level and a minimum distortion to thereby determine an optimum bias control signal, and the proper bias control signal is fixed for said bias generating circuit; another test signal from the source is recorded on the magnetic tape with a preset gain control signal, the recorded other test signal is reproduced and is compared with a reference value at the operating circuit unit to provide an error signal, and the resulting error signal is fed through the memory to the control unit to renew the preset gain control signal for said amplifier. The adjustment of the frequency response control signal for the equalizer is effected in the same manner as the adjustment of the gain control signal.
摘要翻译： 磁记录和再现装置包括用于产生测试信号的源，可变增益放大器，均衡器，记录偏置产生电路，用于向放大器提供控制信号的控制单元，均衡器和记录偏置产生电路，存储器和 一个操作电路单元。 该装置在使用中被自动调整到每个单独的磁带，使得：来自源的第一测试信号被记录在具有预设偏置控制信号的磁带上，记录的第一测试信号被再现，偏置控制信号 被调整以提供最大HF饱和电平和最小失真，从而确定最佳偏置控制信号，并且对于所述偏置发生电路固定适当的偏置控制信号; 来自源的另一个测试信号用预设的增益控制信号记录在磁带上，记录的其它测试信号被再现，并与操作电路单元处的参考值进行比较以提供误差信号，并且所得到的误差信号为 通过存储器馈送到控制单元以更新用于所述放大器的预设增益控制信号。 均衡器的频率响应控制信号的调整以与增益控制信号的调整相同的方式进行。
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公开(公告)号：US09537257B2
公开(公告)日：2017-01-03
申请号：US14684854
申请日：2015-04-13
申请人： Naoyuki Ishikawa , Tetsuya Fujioka , Hideo Kanai , Akihisa Mikawa , Masamichi Yamada , Yasunari Mikutsu , Satoshi Tsuchiya , Yukimi Nishi
发明人： Naoyuki Ishikawa , Tetsuya Fujioka , Hideo Kanai , Akihisa Mikawa , Masamichi Yamada , Yasunari Mikutsu , Satoshi Tsuchiya , Yukimi Nishi
IPC分类号： H01R13/631 , G03B21/20 , G03B21/14 , H04N9/31
CPC分类号： H01R13/631 , G03B21/145 , G03B21/2093 , H04N9/3141
摘要： An image projection apparatus includes a casing, a light source unit detachably mounted to the casing, a first connector having a first engagement member, disposed on a housing of the light source unit, a second connector having a second engagement member, disposed on the casing, and one or more supporters disposed at least one of the first connector and the second connector. The first connector is detachably engageable with the second connector. At least one of the first connector and the second connector is moveable in a direction substantially perpendicular to a connection direction of the first connector and the second connector. The one or more supporters guides one of the first engagement member and the second engagement member to the other one of the first engagement member and the second engagement member when engaging the first connector and the second connector.
摘要翻译： 一种图像投影装置，包括壳体，可拆卸地安装到壳体的光源单元，具有设置在光源单元的壳体上的第一接合构件的第一连接器，具有设置在壳体上的第二接合构件的第二连接器 以及设置在第一连接器和第二连接器中的至少一个的一个或多个支撑件。 第一连接器可拆卸地与第二连接器接合。 第一连接器和第二连接器中的至少一个可以在基本上垂直于第一连接器和第二连接器的连接方向的方向上移动。 当接合第一连接器和第二连接器时，一个或多个支撑件将第一接合构件和第二接合构件中的一个引导到第一接合构件和第二接合构件中的另一个。
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公开(公告)号：US09423676B2
公开(公告)日：2016-08-23
申请号：US14302905
申请日：2014-06-12
申请人： Satoshi Tsuchiya , Tetsuya Fujioka , Hideo Kanai , Masamichi Yamada , Yasunari Mikutsu , Naoyuki Ishikawa , Akihisa Mikawa
发明人： Satoshi Tsuchiya , Tetsuya Fujioka , Hideo Kanai , Masamichi Yamada , Yasunari Mikutsu , Naoyuki Ishikawa , Akihisa Mikawa
CPC分类号： G03B21/16 , G02B26/008 , G03B21/206 , G03B33/08 , H04N9/3144
摘要： A lighting unit and an image projector that cool a drive source that drives a color wheel favorably and prevents dust from collecting on the color wheel are provided. The lighting unit includes a color wheel that divides light from a light source into colors different from each other time-divisionally, a drive source that drives the color wheel such as a color motor, and an optical device that illuminates light that passes through the color wheel on an image generating device such as a DMD that generates a projection image. The lighting unit includes a cooling device that draws heat from the drive source to cool the drive source.
摘要翻译： 提供一种照明单元和图像投影仪，其冷却驱动色轮的驱动源，并防止灰尘收集在色轮上。 照明单元包括将来自光源的光分成与时间不同的颜色的色轮，驱动诸如彩色电机的色轮的驱动源和照亮通过颜色的光的光学装置 在诸如生成投影图像的DMD的图像生成装置上。 照明单元包括从驱动源吸取热量以冷却驱动源的冷却装置。
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公开(公告)号：US09411216B2
公开(公告)日：2016-08-09
申请号：US14313134
申请日：2014-06-24
申请人： Masamichi Yamada , Tetsuya Fujioka , Naoyuki Ishikawa , Akihisa Mikawa , Hideo Kanai , Yasunari Mikutsu , Satoshi Tsuchiya
发明人： Masamichi Yamada , Tetsuya Fujioka , Naoyuki Ishikawa , Akihisa Mikawa , Hideo Kanai , Yasunari Mikutsu , Satoshi Tsuchiya
CPC分类号： G03B21/16 , G02B7/1815 , G02B17/0848 , G03B21/145 , G03B21/28 , H04N9/3144
摘要： In a projector that includes a light source, an image forming unit, a projection optical unit, and a case to contain the light source, the image forming unit, the projection optical unit, and the power supply, takes outside air in through a first intake duct provided on the case, cools the power supply by circulating the taken outside air to the power supply circumventing the projection optical unit, and exhausts the air after cooling through an exhaust vent provided on the case. A second intake duct is provided nearby the power supply compared to the first intake duct, and the amount of outside air drawn into the case through the second intake duct is larger than the amount of outside air drawn into the case through the first intake duct.
摘要翻译： 在包括光源的投影仪，图像形成单元，投影光学单元以及容纳光源，图像形成单元，投影光学单元和电源的壳体中，通过第一 设置在壳体上的进气管道通过将外部空气循环到围绕投影光学单元的电源来冷却电源，并且通过设置在壳体上的排气口在冷却之后排出空气。 与第一进气管相比，第二进气管道设置在电源附近，并且通过第二进气管道吸入壳体的外部空气量大于通过第一进气管道吸入壳体的外部空气量。
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公开(公告)号：US09274409B2
公开(公告)日：2016-03-01
申请号：US14618608
申请日：2015-02-10
CPC分类号： G03B21/28 , G02B17/08 , G03B21/008 , G03B21/145 , G03B21/2066 , H04N9/3141
摘要： Provided is an image projection apparatus, such as a projector, including a light source; an image generating element such as a DMD that receives light from the light source and forms an image; an image generating unit that irradiates the image generating element with the light from the light source; a first optical system including multiple transmission refractive optical elements; a second optical system arranged on an optical path of outgoing light of the first optical system and including a reflection optical element; and a projection optical system that enlarges and projects an image conjugate to the image generated by the image generating element as a projected image. The light source, the image generating unit, and the first optical system are arranged side by side in series in a direction parallel with the projected image plane.
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公开(公告)号：US09110360B2
公开(公告)日：2015-08-18
申请号：US13964239
申请日：2013-08-12
申请人： Yasunari Mikutsu , Hideo Namba , Satoshi Tsuchiya , Naoyuki Ishikawa , Hideo Kanai , Motohisa Ikeda , Masamichi Yamada
发明人： Yasunari Mikutsu , Hideo Namba , Satoshi Tsuchiya , Naoyuki Ishikawa , Hideo Kanai , Motohisa Ikeda , Masamichi Yamada
CPC分类号： G03B21/20 , G03B21/145 , G03B21/18 , G03B21/2086
摘要： An image projection apparatus includes a housing unit; a light source unit provided on the housing unit; an outer cover mounted on the housing unit; a second cover provided nearer to the light source unit than the outer cover; a first mounting member formed on the housing unit; a second mounting member formed on the outer cover and fixing the outer cover to the housing unit when mounted on the first mounting member; a displacement member movable to both a position where mounting of the second mounting member to the first mounting member is inhibited and a position where mounting of the second mounting member to the first mounting member is permitted; and a displacement control member that moves the displacement member to the position where the mounting of the second mounting member to the first mounting member is permitted when the second cover is correctly mounted.
摘要翻译： 图像投影装置包括：壳体单元; 设置在所述壳体单元上的光源单元; 安装在所述壳体单元上的外盖; 设置成比所述外盖更靠近所述光源单元的第二盖; 形成在所述壳体单元上的第一安装构件; 第二安装构件，形成在所述外盖上，并且当安装在所述第一安装构件上时将所述外盖固定到所述壳体单元; 可移动到第二安装构件到第一安装构件的安装位置的位移构件和允许第二安装构件安装到第一安装构件的位置; 以及位移控制构件，当所述第二盖被正确地安装时，所述位移控制构件将所述位移构件移动到允许所述第二安装构件安装到所述第一安装构件的位置。
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公开(公告)号：US09086615B2
公开(公告)日：2015-07-21
申请号：US13664728
申请日：2012-10-31
CPC分类号： G03B21/145 , G03B21/20 , G03B21/2046 , G03B21/2093 , H04N9/3141
摘要： An image projection apparatus includes a light source unit including a light source detachable from a main body, an image forming part to form an image with a light from the light source, a projection optical system to project the image, an openable cover to open and close an opening formed for attaching and detaching the light source unit to and from the main body, an abutting member on which the light source unit abuts when the light source unit is attached to the main body, and a pressing member to press the light source unit to the abutting member, in conjunction with a fix operation of the openable cover to the main body.
摘要翻译： 一种图像投影装置，包括：光源单元，其包括可从主体拆卸的光源;图像形成部，用于形成来自光源的光的图像;投影光学系统，投影图像;打开盖， 闭合形成为用于将光源单元附接到主体的开口，以及当光源单元附接到主体时光源单元抵接的抵接构件，以及按压构件 单元连接到抵接构件，结合可打开盖到主体的固定操作。
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公开(公告)号：US08992030B2
公开(公告)日：2015-03-31
申请号：US13660289
申请日：2012-10-25
摘要： An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.
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公开(公告)号：US08909074B2
公开(公告)日：2014-12-09
申请号：US13029648
申请日：2011-02-17
申请人： Masamichi Yamada
发明人： Masamichi Yamada
IPC分类号： G03G15/20
CPC分类号： G03G15/2085 , G03G15/2028 , G03G15/206
摘要： A fixing device for fixing a toner image on a recording medium includes a fixing roller, a pressing roller, and at least one of a sheet guide, a sheet separation plate, and an electric component module. The fixing roller rotates in a predetermined direction of rotation. The pressing roller rotates and contacts an outer circumferential surface of the fixing roller to form a nip between the pressing roller and the fixing roller through which the recording medium bearing the toner image passes to fix the toner image by heat and pressure. The position of the pressing roller is changeable relative to the fixing roller. At least one of the sheet guide, the separation plate, and the electric component module moves in conjunction with movement of the pressing roller as a single integrated unit without changing relative positions with respect to the pressing roller.
摘要翻译： 用于将调色剂图像定影在记录介质上的定影装置包括定影辊，加压辊，以及片材引导件，片材分离板和电气部件模块中的至少一个。 定影辊沿预定的旋转方向旋转。 压辊旋转并接触定影辊的外圆周表面，以在压辊和定影辊之间形成辊隙，通过该定影辊，承载调色剂图像的记录介质通过该定影辊通过热和压力来固定调色剂图像。 加压辊的位置相对于定影辊是可变的。 片材引导件，分离板和电气部件模块中的至少一个与作为单个集成单元的加压辊的移动一起移动，而不改变相对于加压辊的相对位置。
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