专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US3661394A Tape recorder with pointer drive 失效
标题翻译：带指针驱动器的录音带
公开(公告)号：US3661394A
公开(公告)日：1972-05-09
申请号：US3661394D
申请日：1970-04-14
申请人： GRUNDIG EMV
发明人： SILLER IMRE
IPC分类号： G11B15/675 , G11B23/087 , G11B27/34 , G11B15/32
CPC分类号： G11B23/0875 , G11B15/67584 , G11B27/34
摘要： A tape cartridge is inserted into a pivotally mounted opened holding lid and assumes a preliminary position in which a coupling means in the cartridge is aligned with a coupling means on a drive shaft projecting from the tape recording housing. When the holding lid is closed, the coupling means engage each other and the drive shaft drives a pointer-operating transmission through the engaged coupling means.
摘要翻译：带盒被插入到枢转安装的敞开的保持盖中并且呈现初步位置，其中盒中的联接装置与从带记录外壳突出的驱动轴上的联接装置对准。当保持盖关闭时，联接装置彼此接合，并且驱动轴通过啮合的联接装置驱动指针操作变速器。

22. 发明授权

US3818504A Portable sound recording and reproducing apparatus 失效
标题翻译：便携式录音和复印设备
公开(公告)号：US3818504A
公开(公告)日：1974-06-18
申请号：US22123172
申请日：1972-01-27
申请人： GRUNDIG EMV
发明人： SCHROEDER E
IPC分类号： G11B15/10 , G11B15/675 , G11B5/00
CPC分类号： G11B15/67563 , G11B15/10
摘要： A miniature tape recorder wherein the chassis supports a reciprocable carrier for a pressing roll and one or more magnetic heads. A selector knob is movable by one finger of the hand which grasps the chassis to effect movements of the roll between a first position of engagement with magnetic tape in an inserted cassette so that the tape is urged against a driven sound shaft and a second position at a short distance from the sound shaft. A cover which is pivoted to the chassis is movable by a springbiased lever from a closed position to an open position in response to movement of the selector knob to an ejecting position whereby the cover moves the carrier with the roll and the head or heads to a retracted third position in which such parts cannot interfere with insertion or removal of cassettes. At the same time, the cover effects an at least partial expulsion of an inserted cassette from the chassis. When the cover is returned to its closed position, the roll and the head or heads automatically reassume their second positions.
摘要翻译：一种小型磁带录音机，其中底盘支撑用于按压滚轮和一个或多个磁头的可往复运动的支架。选择器旋钮可以通过握住机架的一只手来移动，从而在插入的盒中的与磁带的第一接合位置之间实现滚动的移动，使得带被抵抗驱动的声轴和第二位置距离声轴很近。响应于选择器旋钮移动到排出位置，枢转到底盘的盖可以通过弹簧偏压杆从关闭位置移动到打开位置，由此盖使辊与头或头部移动到缩回的第三位置，其中这些部件不能干扰盒的插入或移除。同时，盖子使得插入的盒子至少部分地从底盘中排出。当盖子返回到其关闭位置时，卷轴和头部或头部自动重新放置其第二位置。

23. 发明授权

US3813691A Office dictation/transcription machine 失效
标题翻译：办公室/转印机
公开(公告)号：US3813691A
公开(公告)日：1974-05-28
申请号：US29725972
申请日：1972-10-02
申请人： GRUNDIG EMV
发明人： EMMERT R
IPC分类号： G11B5/00 , G11B15/10 , G11B27/36
CPC分类号： G11B5/00 , G11B2005/0002
摘要： An office dictation/transcription machine of the type employing magnetic tape as the sound carrier. The machine has a main unit provided with erasing and playback/record heads and has a plurality of jacks electrically connected to the playback/record head and to the erasing head for the operative connection to the main unit of an accessory capable of activating the erasing head.
摘要翻译：一种使用磁带作为声音载体的办公录音/转录机。机器具有设置有擦除和回放/记录头的主单元，并且具有电连接到回放/记录头和擦除头的多个插孔，用于与能够激活擦除头的附件的主单元的操作连接。

24. 发明授权

US3766410A Stabilizing circuit for standing currents 失效
标题翻译：稳定电流稳定电路
公开(公告)号：US3766410A
公开(公告)日：1973-10-16
申请号：US3766410D
申请日：1971-08-16
申请人： GRUNDIG EMV
发明人： ELSAESSER D
IPC分类号： H03F1/30 , H03F3/30 , H03K17/00
CPC分类号： H03F1/307 , H03F3/3071
摘要： The standing current in series connected complementary transistors of a push-pull power stage is stabilized against fluctuations in temperature, supply voltage and/or changes in component use, by placing a current resistive element in series with the transistors in the path of the standing current. Voltage variations are developed across the resistive element in response to changes in the standing current caused by one more of the fluctuations. An electrode of an auxiliary transistor is connected between one of the complementary transistors and the resistive element to detect the voltage variations and modify the quiescent bias conditions in one of the series connected complementary transistors to counteract the effect of the changes.
摘要翻译：串联连接的推挽功率级的互补晶体管的静止电流通过将静态电流路径中的晶体管串联放置在电流电阻元件上来稳定，防止温度，电源电压和/或元件使用变化的波动。响应于由一个或多个波动引起的驻极电流的变化，电阻元件上产生电压变化。辅助晶体管的电极连接在互补晶体管之一和电阻元件之间，以检测电压变化，并修改串联连接的互补晶体管之一中的静态偏置条件，以抵消变化的影响。

25. 发明授权

US3748557A Circuit for short reverse operation of a motor in a dictating machine or the like 失效
标题翻译：电机短路反转电路或类似电机的电路
公开(公告)号：US3748557A
公开(公告)日：1973-07-24
申请号：US3748557D
申请日：1972-07-19
申请人： GRUNDIG EMV
发明人： MITTELSTAEDT R
IPC分类号： G11B15/18 , G11B15/44 , H02P7/03 , H02P1/22
CPC分类号： G11B15/44 , G11B15/18 , H02P7/03
摘要： A motor control circuit is shown having two transistors of opposite conductivity type connected in series between power supply terminals and with the motor connected between a switch and the common terminal of the transistors. The switch can be connected to either the positive or negative power supply terminals. An additional transistor is connected in a monostable multivibrator circuit with the transistor that is conductive during reverse operation of the motor. An additional switch connects a pulse to the monostable multivibrator when the main switch is set for forward rotation of the motor. This pulse puts the multivibrator into its unstable state to reverse current through the motor until the multivibrator returns to its stable state.
摘要翻译：电动机控制电路被示为具有相互导电类型的两个晶体管，串联连接在电源端子之间，并且电动机连接在开关和晶体管的公共端之间。开关可以连接到正极或负极电源端子。在单稳态多谐振荡器电路中连接一个附加晶体管，该晶体管在电动机反向运行期间导通。当主开关设置为电机正转时，附加开关将脉冲连接到单稳态多谐振荡器。该脉冲将多谐振荡器置于其不稳定状态，以反向通过电机的电流，直到多谐振荡器恢复到稳定状态。

26. 发明授权

US3572486A Pneumatic setting arrangement for a type head 失效
标题翻译：一种类型头的气动设置安排
公开(公告)号：US3572486A
公开(公告)日：1971-03-30
申请号：US3572486D
申请日：1968-09-06
申请人： GRUNDIG EMV
发明人： HEBEL MARTIN , KRAUSS OTTO , WALDENBURGER HERMANN
IPC分类号： B41J7/32 , B41J23/20
CPC分类号： B41J7/32
摘要： A series of pairs of interconnected cylinders and pistons is provided for setting a type head between different printing positions. The cylinder and piston of each pair are movable between a contracted position and an expanded position, and the cylinders and pistons of different pairs are spaced in the expanded position different distances selected in accordance with a code. Pneumatic operating means including valves controlled by keys, move the cylinders and pistons of selected pairs to the expanded position so that the piston at one end of the series is displaced relative to the cylinder at the other end of the series a distance which is the total of the distances of expansion of the selected paris, and sets the type head accordingly to different printing positions.

27. 发明授权

US3475031A Sound reproducing apparatus 失效
公开(公告)号：US3475031A
公开(公告)日：1969-10-28
申请号：US3475031D
申请日：1966-08-18
申请人： GRUNDIG EMV
发明人： KUEHNLEIN DIETER
IPC分类号： G11B15/10 , G11B15/675 , G11B5/02
CPC分类号： G11B15/67513 , G11B15/10

28. 发明授权

US3455217A Composing apparatus 失效
标题翻译：组合装置
公开(公告)号：US3455217A
公开(公告)日：1969-07-15
申请号：US3455217D
申请日：1966-11-02
申请人： GRUNDIG EMV
发明人： STECHEMESSER ERNST , GEBHARDT REINHOLD
IPC分类号： B41B21/16 , H04L13/18 , B41B15/02
CPC分类号： B41B21/16 , H04L13/184 , H04L13/188

29. 发明授权

US3330989A Method of picture scanning in tv tubes 失效
标题翻译：电视管中图像扫描方法
公开(公告)号：US3330989A
公开(公告)日：1967-07-11
申请号：US33115263
申请日：1963-12-17
申请人： GRUNDIG EMV
发明人： RUDOLF MEINL
IPC分类号： H04N5/228
CPC分类号： H04N5/228

30. 发明授权

US3238295A Television camera with vidicon-type tube 失效
标题翻译：电视摄像机与摄像头管
公开(公告)号：US3238295A
公开(公告)日：1966-03-01
申请号：US40610864
申请日：1964-10-23
申请人： GRUNDIG EMV
发明人： RUDOLF MEINL , MICHAEL OBREMSKI
IPC分类号： H04N5/217 , H04N5/228
CPC分类号： H04N5/228 , H04N5/217

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