专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5191512A Heat sink/circuit board assembly 失效
标题翻译：散热片/电路板组装
公开(公告)号：US5191512A
公开(公告)日：1993-03-02
申请号：US794149
申请日：1991-11-21
申请人： Shinichi Ogura , Hiroo Adachi , Osamu Shishido , Tetsuya Watanabe , Yuuichi Mineo , Tohru Kageyama , Yoichi Nishiyama , Takashi Yamaguchi , Keiichi Ogawa
发明人： Shinichi Ogura , Hiroo Adachi , Osamu Shishido , Tetsuya Watanabe , Yuuichi Mineo , Tohru Kageyama , Yoichi Nishiyama , Takashi Yamaguchi , Keiichi Ogawa
IPC分类号： H01L23/40 , H05K7/20
CPC分类号： H01L23/4006 , H01L2023/405 , H01L2023/4056 , H01L2023/4062 , H01L2924/0002
摘要： A heat sink/circuit board assembly allows repairing or inspection of circuit or parts without impairing heat-radiating effect. A sub-heat sink is protruded from a lateral end of the circuit board in a direction parallel to the main surface of the circuit board and is connected to the main heat sink at its protruding portion. The diameter of the opening of the recessed portion of the main heat sink facing the circuit board is made larger than outer diameter of the circuit board. When circuit elements on the main surface of the circuit board facing the recessed portion of the main heat sink are to be repaired or inspected, the main heat sink is connected to the sub-heat sink on a main surface which is on the opposite side to the surface carrying the circuit elements, while the same heat-radiating effect as in the normal condition can be obtained.
摘要翻译：散热器/电路板组件允许修复或检查电路或部件，而不会损害散热效果。亚散热器从电路板的横向端部沿着与电路板的主表面平行的方向突出，并且在其突出部分处连接到主散热器。面向电路板的主散热片的凹部的开口直径比电路板的外径大。当电路板主表面上面对主散热片凹陷部分的电路元件进行修理或检查时，主散热器与主散热片相连，表面承载电路元件，同时可获得与正常条件相同的散热效果。

2. 发明授权

US5414386A Muting apparatus in car audio system 失效
标题翻译：汽车音响系统中的静音装置
公开(公告)号：US5414386A
公开(公告)日：1995-05-09
申请号：US196779
申请日：1994-02-15
申请人： Hiroo Adachi , Mitsuo Nakazato
发明人： Hiroo Adachi , Mitsuo Nakazato
IPC分类号： H03F1/00 , H03G3/34 , H03F1/26
CPC分类号： H03G3/348
摘要： A muting apparatus can mute sounds when a voltage drops even in a car audio system in which a digital audio signal is transmitted between audio components units. In the apparatus the drop of the voltage supplied to each of the audio component units is detected in each of the audio component units and, when the drop of the voltage is detected in any one of the audio component units, an analog audio signal is muted immediately before it is converted into an acoustic energy.
摘要翻译：即使在其中在音频组件单元之间传输数字音频信号的汽车音响系统中，静音装置也能使静音静音。在该装置中，在每个音频分量单元中检测提供给每个音频分量单元的电压的下降，并且当在任何一个音频分量单元中检测到电压的下降时，模拟音频信号被静音在它被转换成声能之前。

3. 发明授权

US4584536A Balance control circuit 失效
标题翻译：平衡控制电路
公开(公告)号：US4584536A
公开(公告)日：1986-04-22
申请号：US754110
申请日：1985-07-12
申请人： Hiroo Adachi
发明人： Hiroo Adachi
IPC分类号： H03F3/30 , H03G3/02 , H04S7/00 , H03F3/68 , H04H5/00
CPC分类号： H03F3/30 , H04S7/302
摘要： A balance control circuit for controlling the difference in volume between right and left audio stereo signals. DC output voltages of an amplifier provided in a preceding stage to the balance volume control circuit are utilized as bias voltages for amplifiers provided in the rear stage of the balance control circuit, and the sliding contacts of variable resistors are grounded through a single capacitor, with the result that the manufacturing cost of the circuit is reduced.
摘要翻译：一种用于控制右和左音频立体声信号之间的音量差的平衡控制电路。作为前级平衡容量控制电路的放大器的直流输出电压被用作平衡控制电路的后级中设置的放大器的偏置电压，并且可变电阻器的滑动触点通过单个电容器接地，导致电路的制造成本降低。

4. 发明授权

US4860361A Acoustic-device cooling unit 失效
标题翻译：声学器件冷却单元
公开(公告)号：US4860361A
公开(公告)日：1989-08-22
申请号：US239731
申请日：1988-09-02
申请人： Takeshi Sato , Hiroo Adachi , Shigeru Munetomo
发明人： Takeshi Sato , Hiroo Adachi , Shigeru Munetomo
IPC分类号： H03F1/52
CPC分类号： H03F1/52
摘要： A cooling unit for cooling an acoustic device installed on the vehicle by using a cooling fan comprises a cooling fan drive circuit which outputs a DC voltage proportional to the input or output signal level of the acoustic device to control the speed of rotation of the cooling fan motor, whereby the noise of the cooling fan is suppressed in a sense of hearing when no signal is provided by the acoustic device.
摘要翻译：用于通过使用冷却风扇来冷却安装在车辆上的声学装置的冷却单元包括：冷却风扇驱动电路，其输出与声学装置的输入或输出信号电平成正比的直流电压，以控制冷却风扇的转速电动机，由此当声学装置没有提供信号时，在听觉上抑制冷却风扇的噪声。

5. 发明授权

US5170081A Ground isolation circuit 失效
标题翻译：接地隔离电路
公开(公告)号：US5170081A
公开(公告)日：1992-12-08
申请号：US781902
申请日：1991-10-24
申请人： Hiroo Adachi , Mitsuo Nakazato , Kouzo Nozawa , Toshiro Araki , Mutsuro Tanoue , Mitsumasa Watanabe
发明人： Hiroo Adachi , Mitsuo Nakazato , Kouzo Nozawa , Toshiro Araki , Mutsuro Tanoue , Mitsumasa Watanabe
IPC分类号： H03F3/45 , H03F3/34 , H04B3/02 , H04B3/28
CPC分类号： H04B3/28
摘要： The present invention relates to a ground isolation circuit for use in connecting electronic circuits at the pre-stage and the post-stage having signal lines assigned for a plurality of channels, wherein the interconnection of the two electronic circuits is performed by employing a shielded signal cable for each channel, discrete ground terminals are provided at either of the electronic circuits, one for each channel, and thereby each shielding braid of the shielded signal cable is connected independently to the discrete ground terminal with every channel. Accordingly, no loop circuit is formed through the shielding braids, thus resulting in no induced noise even if there is an interlinkage of external radiation noise with the shielding braids.
摘要翻译：本发明涉及用于连接分配给多个通道的信号线的前级和后级的电子电路的接地隔离电路，其中两个电子电路的互连通过采用屏蔽信号每个通道的电缆，离散接地端子设置在电子电路中的任一个处，每个通道一个，从而屏蔽信号电缆的每个屏蔽编织层与每个通道独立地连接到离散接地端子。因此，没有通过屏蔽编织物形成环路电路，因此即使存在外部辐射噪声与屏蔽编织物的相互连接，也不产生感应噪声。

6. 发明授权

US4618834A Variable characteristics amplifier circuit 失效
标题翻译：可变特性放大电路
公开(公告)号：US4618834A
公开(公告)日：1986-10-21
申请号：US753468
申请日：1985-07-10
申请人： Hiroo Adachi
发明人： Hiroo Adachi
IPC分类号： G11B20/04 , G11B15/087 , G11B27/22 , H03G9/12 , H03G3/30
CPC分类号： H03G9/12 , G11B27/22
摘要： A variable characteristics amplifier circuit such as may be used in an inter-music interval detecting circuit for a tape deck, record player, or the like. First and second transistors are connected in an emitter follower configuration with an input signal being applied to the base of the first transistor. One of the emitter or collector of the second transistor is connected through a series circuit of a capacitor and resistor to an inverting input terminal of an operational amplifier, and a feedback circuit is provided between this input terminal and the output of the operational amplifier. A capacitor is coupled between the selected one of the emitter and collector of the second transistor and its base.
摘要翻译：诸如可用于磁带机，音乐播放器等的音乐间间隔检测电路中的可变特性放大器电路。第一和第二晶体管以射极跟随器配置连接，输入信号被施加到第一晶体管的基极。第二晶体管的发射极或集电极之一通过电容器和电阻器的串联电路连接到运算放大器的反相输入端，并且在该输入端和运算放大器的输出之间提供反馈电路。电容器耦合在第二晶体管的发射极和集电极中的所选择的一个及其基极之间。

7. 发明授权

US4334263A Separately excited DC-DC converter having feedback circuit with temperature compensating effect 失效
标题翻译：具有反馈电路的独立激励DC-DC转换器具有温度补偿效果
公开(公告)号：US4334263A
公开(公告)日：1982-06-08
申请号：US129207
申请日：1980-03-11
申请人： Hiroo Adachi
发明人： Hiroo Adachi
IPC分类号： H02M3/337 , H02P13/22
CPC分类号： H02M3/3378 , H02M3/3372
摘要： A separately-excited DC-DC converter having a feed-back loop for providing stable operation notwithstanding changes of load. The feed-back loop may include a temperature-responsive element so as to provide stable operation even under changes of the ambient temperature.
摘要翻译：具有反馈回路的单独激励的DC-DC转换器，即使负载发生变化，也能提供稳定的操作。反馈回路可以包括温度响应元件，以便即使在环境温度的变化下也能提供稳定的操作。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式