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1. 发明公开

EP0122632A3 FM signal demodulation circuit 失效
标题翻译： FM信号解调电路
公开(公告)号：EP0122632A3
公开(公告)日：1989-02-22
申请号：EP84104334.2
申请日：1984-04-17
申请人： HITACHI, LTD.
发明人： Miura, Kuniaki , Kobori, Yasunori , Fukushima, Isao , Shiomi, Makoto , Kano, Kenji
IPC分类号： H03D3/04
CPC分类号： H03D3/00 , H03D3/04 , H03D2200/0084
摘要： An FM signal demodulation circuit comprises a plurality of inverters (12, 13, 14, 15; 26) and a capacitor (17; 24, 25). Each of the inverters is constituted by an integrated injection logic I²L including a transistor (12a, 13a, 14a, 15a; 26a) and an injector current source (12i, 13i, 14i, 15i).

2. 发明公开

EP0129055A3 Method and apparatus for controlling a still reproduction of a video tape recorder 失效
标题翻译：用于控制视频磁带记录器的静态再现的方法和装置
公开(公告)号：EP0129055A3
公开(公告)日：1986-08-13
申请号：EP84105484
申请日：1984-05-15
申请人： HITACHI, LTD.
发明人： Okamoto, Kaneyuki , Kobori, Yasunori , Sekiya, Masataka , Fukushima, Isao , Kano, Kenji , Kubota, Takashi
IPC分类号： G11B15/02 , G11B15/18 , G11B27/10 , H04N05/783
CPC分类号： G11B15/1875
摘要： A method and apparatus for reproducing a still picture without a noise bar from a magnetic tape in a video tape recoder. The magnetic tape is stopped in a moment at a leading edge of a rotating phase detecting signal of rotating heads or a reproduced control signal generated after a still reproduction command signal, and it is detected whether the nose bar exists within a vertical blanking period or not in a still reproduction state. If the noise bar exists within the vertical blanking period, the still reproduction state is continued. In the case that the noise bar does not exist within the vertical blanking period, the magnetic tape is run at a slow speed, and when the noise bar gets into the vertical blanking period, the feeding of the magnetic tape is stopped.

3. 发明公开

EP0097916A3 Power supply system for plural motors 失效
标题翻译：电动马达电源系统
公开(公告)号：EP0097916A3
公开(公告)日：1984-10-17
申请号：EP83106107
申请日：1983-06-22
申请人： HITACHI, LTD.
发明人： Nishijima, Hideo , Fukushima, Isao , Teshima, Tsunehiko , Kobori, Yasunori , Ito, Takayasu
IPC分类号： H02P05/46
CPC分类号： H02P5/68 , H02P5/60 , H02P6/04
摘要： Disclosed is a power supply system, in which a single variable voltage supply device (38) is used as a power source for a plurality of motors (24, 37; 45, 50) which are simultaneously or successively rotated, in which each motor is subjected to constant current driving by a current control device (18, 19, 20; 69, 70, 71) connected to the motor, and in which the variable voltage supply device is controlled so as to produce a voltage which is the sum of the highest one of the voltages required for driving the motors and necessary and minimum voltage with which all the current control devices are operable.

4. 发明公开

EP0091672A2 Characteristic switching circuit 失效
标题翻译： Netzwerkes的Schaltung zur Wahl des Frequenzganges。
公开(公告)号：EP0091672A2
公开(公告)日：1983-10-19
申请号：EP83103438.4
申请日：1983-04-08
申请人： Hitachi, Ltd. , HITACHI MICROCOMPUTER ENGINEERING LTD.
发明人： Fukushima, Isao , Kuwahara, Kazuyoshi , Itoigawa, Keiichi , Kobori, Yasunori , Nishijima, Hideo
IPC分类号： H03H11/04 , H03H19/00
CPC分类号： H03H19/004
摘要： A time constant circuit capable of switching the characteristic, which is realized by a combination of an equivalent resistor made up of a switched capacitor and an ordinary capacitor, comprises a capacitor (20, 26, 27) of the switched capacitor or the time constant circuit connected in parallel to a series circuit including a switching device (29, 51, 69) and an additional capacitor (28, 47, 52, 56, 58). The characteristic is switched by turning on and off the additional capacitor by the switching device. The direct connection of a plurality of equivalent resistors with a plurality of switched capacitors and ordinary capacitors makes up an equalizer. The capacitor making up a switched capacitor is connected with a switching device and an additional capacitor so that the frequency characteristic of the equalizer is switchable by turning on and off the switching device. Each of the capacitors making up the switched capacitors, the capacitors making up the time constant circuits and the additional capacitors has an end thereof grounded without fail. All the elements are thus capable of being formed in the same integrated circuits.
摘要翻译：能够切换通过由开关电容器和普通电容器构成的等效电阻的组合实现的特性的时间常数电路包括开关电容器的电容器或与串联电路并联连接的时间常数电路包括开关器件和附加电容器。通过开关装置接通和关闭附加电容器来切换特性。多个等效电阻器与多个开关电容器和普通电容器的直接连接构成均衡器。构成开关电容器的电容器与开关器件和附加电容器连接，使得均衡器的频率特性可通过接通和断开开关器件来切换。构成开关电容器的每个电容器，构成时间常数电路的电容器和附加电容器的端部接地。因此，所有元件能够形成在相同的集成电路中。

5. 发明公开

EP0090423A2 Motor driving circuit 失效
标题翻译：电动机驱动电路。
公开(公告)号：EP0090423A2
公开(公告)日：1983-10-05
申请号：EP83103177.8
申请日：1983-03-30
申请人： Hitachi, Ltd. , HITACHI MICROCOMPUTER ENGINEERING LTD.
发明人： Nishijima, Hideo , Sera, Katsumi , Fukushima, Isao , Kobori, Yasunori
IPC分类号： H02P3/12 , H02P3/22
CPC分类号： H02P3/06 , H02P6/085 , H02P6/24
摘要： A motor driving circuit in which the opposite ends of the motor driving coils (4) of a video tape recorder (VTR) capstan motor are shorted by a group of switching elements (12-17) when a control input voltage generated from a rotation detec- tion/oscillator (6) is in a predetermined range.

6. 发明公开

EP0262595A3 Thermal-transfer recording method and apparatus for the same 失效
标题翻译：热转印记录方法及其设备
公开(公告)号：EP0262595A3
公开(公告)日：1989-12-06
申请号：EP87113997.8
申请日：1987-09-24
申请人： HITACHI, LTD.
发明人： Shiraishi, Mikio , Gotoh, Toshihiko , Hamma, Kentaro , Kimura, Hiroyuki , Kobori, Yasunori , Tomatsuri, Koichi
IPC分类号： B41J3/20
CPC分类号： B41J2/325 , Y10T156/1705
摘要： A thermal-transfer recording method and an apparatus used for this method in which ink (17) on an ink tape (8) is heat-transferred in the form of a mirror image of a desired image to an intermediate recording sheet (5) having a base film (19) and an ink absorbing adhesive layer (18) formed on the base film, and in which the intermediate recording sheet to which the mirror image has been heat-transferred is bonded to a desired recording medium (1) at the surface of the ink absorbing adhesive layer.

7. 发明授权

EP0085293B1 Motor control apparatus 失效
标题翻译：电机控制装置
公开(公告)号：EP0085293B1
公开(公告)日：1986-08-06
申请号：EP83100039.3
申请日：1983-01-04
申请人： Hitachi, Ltd.
发明人： Fukushima, Isao , Kobori, Yasunori , Nishijima, Hideo , Masuda, Yoshinori
IPC分类号： H02P5/16
CPC分类号： H02P7/2885 , H02P5/00 , Y10S388/915 , Y10S388/921

8. 发明公开

EP0091672A3 Characteristic switching circuit 失效
标题翻译：特性切换电路
公开(公告)号：EP0091672A3
公开(公告)日：1985-06-12
申请号：EP83103438
申请日：1983-04-08
申请人： Hitachi, Ltd. , HITACHI MICROCOMPUTER ENGINEERING LTD.
发明人： Fukushima, Isao , Kuwahara, Kazuyoshi , Itoigawa, Keiichi , Kobori, Yasunori , Nishijima, Hideo
IPC分类号： H03H11/04 , H03H19/00
CPC分类号： H03H19/004
摘要： A time constant circuit capable of switching the characteristic, which is realized by a combination of an equivalent resistor made up of a switched capacitor and an ordinary capacitor, comprises a capacitor (20, 26, 27) of the switched capacitor or the time constant circuit connected in parallel to a series circuit including a switching device (29, 51, 69) and an additional capacitor (28, 47, 52, 56, 58). The characteristic is switched by turning on and off the additional capacitor by the switching device. The direct connection of a plurality of equivalent resistors with a plurality of switched capacitors and ordinary capacitors makes up an equalizer. The capacitor making up a switched capacitor is connected with a switching device and an additional capacitor so that the frequency characteristic of the equalizer is switchable by turning on and off the switching device. Each of the capacitors making up the switched capacitors, the capacitors making up the time constant circuits and the additional capacitors has an end thereof grounded without fail. All the elements are thus capable of being formed in the same integrated circuits.
摘要翻译：能够切换通过由开关电容器和普通电容器构成的等效电阻的组合实现的特性的时间常数电路包括开关电容器的电容器或与串联电路并联连接的时间常数电路包括开关器件和附加电容器。通过开关装置接通和关闭附加电容器来切换特性。多个等效电阻器与多个开关电容器和普通电容器的直接连接构成均衡器。构成开关电容器的电容器与开关器件和附加电容器连接，使得均衡器的频率特性可通过接通和断开开关器件来切换。构成开关电容器的每个电容器，构成时间常数电路的电容器和附加电容器的端部接地。因此，所有元件能够形成在相同的集成电路中。

9. 发明公开

EP0097916A2 Power supply for plural motors 失效
标题翻译： EnergieversorgungfürMehrmotorenantriebe。
公开(公告)号：EP0097916A2
公开(公告)日：1984-01-11
申请号：EP83106107.2
申请日：1983-06-22
申请人： HITACHI, LTD.
发明人： Nishijima, Hideo , Fukushima, Isao , Teshima, Tsunehiko , Kobori, Yasunori , Ito, Takayasu
IPC分类号： H02P5/46 , H02P7/68 , H02P6/02
CPC分类号： H02P5/68 , H02P5/60 , H02P6/04
摘要： Disclosed is a power supply system, in which a single variable voltage supply device (38) is used as a power source for a plurality of motors (24, 37; 45, 50) which are simultaneously or successively rotated, in which each motor is subjected to constant current driving by a current control device (18, 19, 20; 69, 70, 71) connected to the motor, and in which the variable voltage supply device is controlled so as to produce a voltage which is the sum of the highest one of the voltages required for driving the motors and necessary and minimum voltage with which all the current control devices are operable.
摘要翻译：公开了一种供电系统，其中单个可变电压供应装置（38）被用作用于同时或连续旋转的多个电动机（24,37; 45,50）的电源，其中每个电动机是通过连接到电动机的电流控制装置（18,19,20; 69,70,71）进行恒流驱动，并且其中可变电压供应装置被控制以便产生作为电动机的总和的电压驱动电机所需的最高电压之一以及所有电流控制装置都可操作的必要和最小电压。

10. 发明公开

EP0085293A1 Motor control apparatus 失效
标题翻译：发动机控制单元。
公开(公告)号：EP0085293A1
公开(公告)日：1983-08-10
申请号：EP83100039.3
申请日：1983-01-04
申请人： Hitachi, Ltd.
发明人： Fukushima, Isao , Kobori, Yasunori , Nishijima, Hideo , Masuda, Yoshinori
IPC分类号： H02P5/16
CPC分类号： H02P7/2885 , H02P5/00 , Y10S388/915 , Y10S388/921
摘要： A motor control apparatus for driving and controlling a motor, in which a signal frequency proportional to a rotation number of the motor is converted into a d.c. voltage by a frequency/voltage converter so as to drive and control the motor by the d.c. voltage. The apparatus comprises a first, a second, and a third pulse generator (12, 13, 14) for successively producing a first, a second, and a third repetitive pulse, respectively, in response to a signal period proportional to the rotation number of the motor; a constant current source (36, 48, 56); a first reset circuit (17) driven by the third pulse to reset an output current of the constant current source; a first capacitor (20) connected to the first reset circuit in parallel with the first reset circuit and charged by the output current of the constant current source; a sampling circuit (18) driven by the second pulse to derive a saw tooth wave signal appearing across the first capacitor; a second reset circuit (19) driven by the first pulse; a second capacitor (21) connected to the second reset circuit in parallel therewith for charging the saw tooth wave signal through the sampling circuit; and a circuit (49, 57) for changing a pulse width of at least one of the first, second and third pulses substantially in proportion to the output current of the constant current source.

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