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    • 3. 发明授权
    • Rear projection-type screen and rear projection-type image display device
    • 背投式屏幕和背投式图像显示装置
    • US07379240B2
    • 2008-05-27
    • US10521610
    • 2003-07-15
    • Takaaki IwakiKyoichi Murakami
    • Takaaki IwakiKyoichi Murakami
    • G03B21/60G03B21/56
    • G03B21/62G03B21/625
    • A rear projection-type screen includes two sheet-like members having lenses prevented from being deformed and scratched. In the rear projection-type screen (5) for passing and focusing image light L emitted from an image light source (3), two sheet-like members (a lenticular lens sheet 7 and a Fresnel lens sheet 8) each made of a transparent material and having minute lenses (9) and (11) formed on at least one surface thereof are disposed such that their surfaces (7b) and (8a) with the lenses formed thereon confront each other, and a plurality of spacers (14), (14), . . . are disposed at appropriate spaced intervals between the confronting lenses of the two sheet-like members within an effective screen area (5a) for passing and focusing the image light thereon.
    • 背投式屏幕包括具有防止变形和划伤的镜片的两个片状构件。 在用于使从图像光源(3)发射的图像光L的通过和聚焦的后投影型屏幕(5)中,每个由透明的(由透明的)形成的两个片状部件(双凸透镜片7和菲涅尔透镜片8) 在其至少一个表面上形成的具有微小透镜(9)和(11)的材料被设置成使得它们在其上形成的透镜的表面(7b)和(8a)彼此面对,并且多个间隔物(14 ),(14),。 。 。 在有效屏幕区域(5a)内的两个片状构件的相对透镜之间以适当间隔设置,用于使图像光在其上通过和聚焦。
    • 4. 发明授权
    • Chrominance signal processing circuit
    • 色度信号处理电路
    • US4343018A
    • 1982-08-03
    • US208193
    • 1980-11-19
    • Tsutomu NiimuraKyoichi MurakamiAkira Yamakoshi
    • Tsutomu NiimuraKyoichi MurakamiAkira Yamakoshi
    • H04N9/45H04N9/64H04N9/68H04N9/535
    • H04N9/68
    • A chrominance signal processing circuit for generating a gain-controlled chrominance signal carrier and a phase-controlled burst signal is provided with a first differential amplifier receiving a chrominance signal carrier and having a first constant current source, a second differential amplifier receiving an output signal of the first differential amplifier, a phase control circuit connected to the output of the second differential amplifier, the second differential amplifier receiving its bias current from a second constant current source during a chroma interval and from a third constant current source during a burst interval, the ratio of the currents of the first and second constant current sources being controlled for controlling the gain of the chrominance signal, and the output of the second differential amplifier being controlled at least during the burst interval, for controlling the phase of the burst signal.
    • 用于产生增益控制的色度信号载波和相位控制的突发信号的色度信号处理电路设置有接收色度信号载波并具有第一恒定电流源的第一差分放大器,接收第一恒定电流源的输出信号的第二差分放大器 所述第一差分放大器,连接到所述第二差分放大器的输出的相位控制电路,所述第二差分放大器在色度间隔期间从第二恒定电流源接收其偏置电流,并且在突发间隔期间从所述第三恒定电流源接收所述偏置电流, 控制第一和第二恒定电流源的电流的比率用于控制色度信号的增益,并且至少在突发间隔期间控制第二差分放大器的输出,以控制突发信号的相位。
    • 5. 发明申请
    • Rear projection-type screen and rear projection-type image display device
    • 背投式屏幕和背投式图像显示装置
    • US20060126172A1
    • 2006-06-15
    • US10521610
    • 2003-07-15
    • Takaaki IwakiKyoichi Murakami
    • Takaaki IwakiKyoichi Murakami
    • G03B21/60
    • G03B21/62G03B21/625
    • A rear projection-type screen includes two sheet-like members having lenses prevented from being deformed and scratched. In the rear projection-type screen (5) for passing and focusing image light L emitted from an image light source (3), two sheet-like members (a lenticular lens sheet 7 and a Fresnel lens sheet 8) each made of a transparent material and having minute lenses (9) and (11) formed on at least one surface thereof are disposed such that their surfaces (7b) and (8a) with the lenses formed thereon confront each other, and a plurality of spacers (14), (14), . . . are disposed at appropriate spaced intervals between the confronting lenses of the two sheet-like members within an effective screen area (5a) for passing and focusing the image light thereon.
    • 背投式屏幕包括具有防止变形和划伤的镜片的两个片状构件。 在用于使从图像光源(3)发射的图像光L的通过和聚焦的后投影型屏幕(5)中,每个由透明的(由透明的)形成的两个片状部件(双凸透镜片7和菲涅尔透镜片8) 在其至少一个表面上形成的具有微小透镜(9)和(11)的材料被设置成使得它们在其上形成的透镜的表面(7b)和(8a)彼此面对,并且多个间隔物(14 ),(14),。 。 。 在有效屏幕区域(5a)内的两个片状构件的相对透镜之间以适当间隔设置,用于使图像光在其上通过和聚焦。
    • 6. 发明授权
    • Operational amplifier circuit
    • 运算放大器电路
    • US5144169A
    • 1992-09-01
    • US759927
    • 1991-09-13
    • Atsushi HirabayashiKyoichi MurakamiKenji KomoriMasaaki Ishihara
    • Atsushi HirabayashiKyoichi MurakamiKenji KomoriMasaaki Ishihara
    • H03F3/34H03F1/32H03F3/30H03F3/45
    • H03F1/3211H03F3/3071
    • An operational amplifier circuit comprises a pair of emitter common transistors forming a differential amplifier circuit including a first conductivity type first and second transistors; a current mirror circuit including a second conductivity type third and fourth transistors having commonly connected bases and collectors which are connected with the first and second transistors, respectively and a second conductivity of fifth transistor having an emitter connected with the common bases and a base connected with the collector of the fourth transistor; and an output circuit including a second conductivity type sixth transistor having a base connected with the collector of the first transistor and a second conductivity type seventh transistor having a base connected with the emitter of the sixth transistor for outputting an output of the collector of the seventh transistor via a transistor buffer. The voltage between the collectors and the emitters of the first and second transistors of the emitter common transistor differential pair are equal to each other so that the current offset is reduced to improve the distortion factor characteristics.
    • 运算放大器电路包括一对发射极公共晶体管,形成包括第一导电类型的第一和第二晶体管的差分放大器电路; 电流镜电路,包括分别与第一和第二晶体管连接的共同连接的基极和集电极的第二导电类型的第三和第四晶体管,以及具有与公共基极连接的发射极的第五晶体管的第二导电性和与 第四晶体管的集电极; 以及输出电路,包括具有与第一晶体管的集电极连接的基极的第二导电型第六晶体管和具有与第六晶体管的发射极连接的基极的第二导电型第七晶体管,用于输出第七晶体管的集电极的输出 晶体管通过晶体管缓冲器。 集电极和发射极公共晶体管差分对的第一和第二晶体管的发射极之间的电压彼此相等,使得电流偏移减小以改善失真因子特性。
    • 8. 发明授权
    • Circuit for converting single-ended input signals to a pair of
differential output signals
    • 用于将单端输入信号转换为一对差分输出信号的电路
    • US4292597A
    • 1981-09-29
    • US83858
    • 1979-10-11
    • Tsutomu NiimuraKyoichi MurakamiAkira Yamakoshi
    • Tsutomu NiimuraKyoichi MurakamiAkira Yamakoshi
    • H03F3/30H03F3/45H03G1/00H03G3/30
    • H03F3/3094H03F3/45071H03G1/0023
    • A circuit that is particularly adapted to convert a single-ended input signal to a pair of differential output signals. First and second series circuits are connected in parallel, the first series circuit being formed of first and second diodes and the second series circuit being formed of a third diode connected with the collector-emitter circuit of a transistor. The base electrode of the transistor is connected to the junction defined by the first and second diodes such that the base-emitter circuit thereof is in parallel arrangement with the second diode. A current source is connected to the parallel-connected series circuits so as to supply currents thereto. An input signal is supplied to the junction defined by the first and second diodes; the first and second outputs are coupled to this junction and to the collector electrode of the transistor, respectively, for providing differential output signal currents that are a function of the supplied signal. This circuit can be connected to a differential amplifier to supply differential signals to the latter, whereby a gain controlled amplification of the original single-ended input signal can be attained.
    • 特别适用于将单端输入信号转换成一对差分输出信号的电路。 第一和第二串联电路并联连接,第一串联电路由第一和第二二极管形成,第二串联电路由与晶体管的集电极 - 发射极连接的第三二极管形成。 晶体管的基极连接到由第一和第二二极管限定的结,使得其基极 - 发射极电路与第二二极管并联布置。 电流源连接到并联串联电路,以便向其提供电流。 输入信号被提供给由第一和第二二极管限定的结; 第一和第二输出分别耦合到该结和晶体管的集电极,以提供作为所提供信号的函数的差分输出信号电流。 该电路可以连接到差分放大器以向后者提供差分信号,从而可以获得原始单端输入信号的增益控制放大。