公开(公告)号：US3987256A

公开(公告)日：1976-10-19

申请号：US452989

申请日：1974-03-20

申请人： Fumitaka Nagamura

发明人： Fumitaka Nagamura

IPC分类号： G11B20/00 ,  H04R11/12 ,  H04S3/00 ,  G11B3/44 ,  H04R5/00

CPC分类号： H04S3/006 ,  G11B20/00992 ,  H04R11/12 ,  H04S2400/15 ,  H04S5/005

摘要： Reproducing cartridge apparatus for producing preferably at least three and most advantageously four channels of electrical signals from a multi-channel signal containing grooved record where the sides of the groove are oriented at angles of 45.degree. from the vertical, said reproducing apparatus comprising a stylus adapted to extend into the record groove, at least three and preferably four transducers mounted in spaced angular relationship to one another and responsive to movement of the stylus in various directions for producing electrical signals indicative of the directions of movement imparted to the said stylus as the stylus rides in the record groove. The transducers have main detecting axes spaced in different directions along which axes they are responsive to a maximum degree to movement of the stylus.

摘要翻译： 再现盒装置，用于从包含沟槽记录的多通道信号优选地产生至少三个最有利的四个通道的电信号，其中槽的侧面与垂直方向成45°的角度定向，所述再现装置包括适于 延伸到记录槽中，至少三个并且优选地四个换能器以彼此间隔的角度关系安装并且响应于触针在各个方向上的移动，以产生指示作为触针施加到所述触针的运动方向的电信号 骑在记录槽中。 传感器具有在不同方向上间隔开的主检测轴，沿着该检测轴，它们响应于触针的最大程度的移动。

公开(公告)号：US4085446A

公开(公告)日：1978-04-18

申请号：US715195

申请日：1976-08-17

申请人： Fumitaka Nagamura

发明人： Fumitaka Nagamura

IPC分类号： G06F17/30 ,  G06F15/40 ,  G06F7/10 ,  G06F3/02 ,  G06F13/06

CPC分类号： G06F17/30017

摘要： A data storage and retrieval system facilitates interface between a human operator and a digital processing system or computer, by first manually selecting visual human word(s) in an identification table overlaid on a display board and next automatically retrieving information by its corresponding address code in conjunction with a magnetic card. Moreover, since the identification table and magnetic card are replaceable from one item block to another item block, numerous arbitrary and repeatable combinations of requested words and their corresponding addresses a different item block can be easily made for many different operators and themes by applying data processing and versatile programming.

摘要翻译： 数据存储和检索系统通过首先在覆盖在显示板上的识别表中手动选择视觉人字，并通过其相应的地址码自动检索信息，从而促进人类操作者和数字处理系统或计算机之间的接口 结合磁卡。 此外，由于识别表和磁卡可以从一个项目块替换到另一个项目块，所以可以通过应用数据处理容易地为许多不同的运算符和主题而对所请求的字和其对应的地址进行不同的项目块的多个任意和可重复的组合 和多功能编程。

公开(公告)号：US3988025A

公开(公告)日：1976-10-26

申请号：US549502

申请日：1975-02-13

申请人： Fumitaka Nagamura

发明人： Fumitaka Nagamura

IPC分类号： H04R9/16 ,  G11B3/44

CPC分类号： H04R9/16

摘要： A record disc cutting apparatus is disclosed wherein cutting vectors are three-dimentionally distributed. The cutter head is cantilevered by a unique support structure. The support structure provides various fulcrum positions therealong for cutter head pivotal motions in response to the driving directions by means of a 45--45 drive mechanism.

公开(公告)号：US3940149A

公开(公告)日：1976-02-24

申请号：US439575

申请日：1974-02-04

申请人： Fumitaka Nagamura

发明人： Fumitaka Nagamura

IPC分类号： G11B3/36 ,  G11B3/085 ,  G11B3/38 ,  G11B3/10

CPC分类号： G11B3/38 ,  G11B3/08522 ,  G11B3/08529

摘要： There is disclosed a tonearm linear-drive apparatus wherein the pivotal point of the tonearm is moved in the linear direction which is parallel with the pickup stylus linearly moving direction across the record disc being played, by using at least a portion of gravity force. A sliding mechanism having the tonearm supported at the pivot point is provided adapted to slide along a linear track by the portion of gravity force in the same direction as that of the linear movement of the pivotal point of the tonearm. A braking mechanism is provided responsive to the above stylus movement and the above pivotal point movement for starting and stopping the above sliding mechanism movement.

摘要翻译： 公开了一种tonearm线性驱动装置，其中通过使用重力的至少一部分，tonearm的枢转点在与正在播放的记录盘上的拾音器触针线性移动方向平行的线性方向上移动。 具有支撑在枢轴点处的墨质的滑动机构被设置成适于沿着与所述tonearm的枢转点的线性运动相同方向的重力作用的一部分沿着线性轨道滑动。 响应于上述触针运动和上述枢转点移动来提供制动机构，用于启动和停止上述滑动机构运动。