公开(公告)号：US4437181A

公开(公告)日：1984-03-13

申请号：US182407

申请日：1980-08-26

申请人： Yukihiro Kishima

发明人： Yukihiro Kishima

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B3/12 ,  G11B3/06

CPC分类号： G11B3/08512 ,  G11B3/0957 ,  G11B3/125

摘要： A record disc playing apparatus has a tone arm position detecting device which comprises a position detection part comprising a plurality of reading elements aligned in line, a code part comprising a plurality of rows of code patterns shifted in the direction of alignment of reading elements and extending along substantially perpendicular directions to the alignment direction of reading elements, and an encoder which is supplied with the output signal of the position detection part and produces address signals according to the relative position of the position detection part and the reading part. One of the code part and the position detection part is fixed and the other unitarily undergoes displacement with a tone arm of the record disc playing apparatus. The position detection part relatively scans the code patterns of the code part, the code patterns have combinations of existence and non-existence portions in the alignment direction of the reading elements, the combinations are arranged differently according to the position of the relative scanning by the position detection part.

摘要翻译： 记录盘播放装置具有音调位置检测装置，其包括位置检测部分，该位置检测部分包括排列成行的多个读取元件，编码部分包括在读取元件的对准方向上偏移的多行代码图形，并且延伸 沿着与读取元件的排列方向大体上垂直的方向，以及编码器，其被提供有位置检测部分的输出信号，并且根据位置检测部分和读取部分的相对位置产生地址信号。 代码部分和位置检测部分中的一个是固定的，另一个与记录盘播放装置的音臂一体地进行位移。 位置检测部分相对地扫描代码部分的代码模式，代码模式在读取元件的对准方向上具有存在和不存在部分的组合，根据相对扫描的位置，组合被不同地布置 位置检测部分。

公开(公告)号：US4412318A

公开(公告)日：1983-10-25

申请号：US340538

申请日：1982-01-19

申请人： Masao Goto

发明人： Masao Goto

IPC分类号： G11B3/095 ,  G11B3/38 ,  G11B17/06

CPC分类号： G11B3/0957

摘要： A device for detecting, on a record medium, positions of interband regions disposed between bands of recorded formation on the medium, detects differences in reflectivity of the regions and the bands by emitting electromagnetic radiation to be incident on a recorded surface of the medium containing the bands and regions, and detecting the level of the radiation reflected thereby. A radiation source, such as in LED, emits a beam of radiation to be incident on the medium. A detector, such as a photo transistor, detects the intensity of the beam reflected from the medium and provides an output level that varies with the intensity of the reflected beam. An interband region detecting circuit provides an output signal in response to variations in the output level to indicate the presence of the interband regions. In order to automatically control the current furnished to the radiation source so that the intensity of the reflected beam is maintained within an optimum range of the detector, an average level detecting circuit, which can include an integrator, provides a time average of the detector output to a current control circuit whose output is connected to the radiation source. Thus the emitted level of radiation from the source is automatically increased if the record medium has a low reflectivity, and is automatically decreased if the record medium has a high reflectivity.

摘要翻译： 一种用于在记录介质上检测设置在介质上的记录结构的带之间的带间区域的位置的装置，通过发射电磁辐射来检测区域和带的反射率差异，以入射到包含该介质的介质的记录表面上 波段和区域，并检测由此反射的辐射的水平。 诸如LED中的辐射源发射入射到介质上的辐射束。 诸如光电晶体管的检测器检测从介质反射的光束的强度，并提供随着反射光束的强度而变化的输出电平。 带间区域检测电路响应于输出电平的变化提供输出信号，以指示存在带间区域。 为了自动控制提供给辐射源的电流，使得反射光束的强度保持在检测器的最佳范围内，可以包括积分器的平均电平检测电路提供检测器输出的时间平均 连接到其输出连接到辐射源的电流控制电路。 因此，如果记录介质具有低反射率，则来自源的辐射水平自动增加，并且如果记录介质具有高反射率，则其自动降低。

公开(公告)号：US4230323A

公开(公告)日：1980-10-28

申请号：US945898

申请日：1978-09-26

申请人： Sigeki Tsuji ,  Hiromichi Shiozaki ,  Eiji Yamasaki

发明人： Sigeki Tsuji ,  Hiromichi Shiozaki ,  Eiji Yamasaki

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B17/06

CPC分类号： G11B3/08512 ,  G11B3/0957

摘要： A nonrecorded section detection sensor is driven to scan a disc surface to determine addresses of each nonrecorded portions provided between two adjacent tracks. A selection keyboard is provided for selecting a desired track or desired tracks to be played. A random access memory stores the addresses of the beginning portion and the ending portion of the selected track. A control means functions to locate a pickup cartridge at the address of the beginning portion of the selected track to perform the play operation. When the play operation is conducted to the address of the ending portion of the selected track, the pickup cartridge is driven to travel upward to terminate the play operation.

摘要翻译： 驱动非记录部分检测传感器来扫描盘表面以确定在两个相邻轨道之间提供的每个非记录部分的地址。 提供选择键盘用于选择要播放的期望的轨道或期望的轨道。 随机存取存储器存储所选轨道的开始部分和结束部分的地址。 控制装置用于将拾取盒定位在所选轨道的开始部分的地址处以执行播放操作。 当对所选轨道的结束部分的地址进行播放操作时，驱动拾取盒向上行进以终止播放操作。

公开(公告)号：US4184687A

公开(公告)日：1980-01-22

申请号：US900145

申请日：1978-04-26

申请人： John P. Wren ,  Ian W. Buckner

发明人： John P. Wren ,  Ian W. Buckner

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B17/06

CPC分类号： G11B3/0957 ,  G11B3/08512

摘要： Electrical equipment for controlling an electric motor for the horizontal movement of the pickup member of a disc-record gramophone towards and away from the center of the gramophone turntable comprises position-selector means which, when set to any one of a number of predetermined positions of the pickup member, start the motor and emit a normally constant speed-reference signal controlling the motor speed and, upon receipt of a position-identifying signal from the selected position, cause the motor to be de-energised, thus terminating the motor-driven movement of the pick-up member, individual position-detector means, each so constructed as to perform the dual function of emitting such position-identifying signal and of varying the normally constant reference signal in accordance with the residual distance of the pick-up member from the accurate location of the selected position, thereby varying the motor speed so that the position-detector means work, in conjunction with the motor, as an approach servo.

摘要翻译： 用于控制电动马达用于使盘式记录留声机的拾取构件朝向和离开留声机转盘的中心的水平移动的电气设备包括位置选择装置，当设定为多个预定位置 拾取构件启动电动机并发出一个控制电机转速的常规速度参考信号，并且在从所选位置接收到位置识别信号时，使电动机断电，从而终止电机驱动 拾取构件的移动，各个位置检测器装置，每个构造为执行发射这种位置识别信号的双重功能，并且根据拾取构件的剩余距离改变常规参考信号 从所选位置的精确位置，从而改变电动机速度，使得位置检测器装置与电动机一起工作， 作为伺服方式。

公开(公告)号：US4093832A

公开(公告)日：1978-06-06

申请号：US682079

申请日：1976-04-30

申请人： Anson Isaacson ,  Howard J. Morrison ,  Ralph H. Baer ,  Donald K. Fletchic ,  Albert G. Keller

发明人： Anson Isaacson ,  Howard J. Morrison ,  Ralph H. Baer ,  Donald K. Fletchic ,  Albert G. Keller

IPC分类号： G11B3/02 ,  G11B3/095 ,  G11B3/31 ,  G11B17/12 ,  G11B19/02 ,  G11B19/06 ,  G11B27/00 ,  G11B27/11 ,  G11B27/22 ,  G11B19/14

CPC分类号： G11B19/022 ,  G11B17/12 ,  G11B19/06 ,  G11B27/002 ,  G11B27/11 ,  G11B27/22 ,  G11B3/02 ,  G11B3/0957 ,  G11B3/31 ,  G11B2220/20 ,  G11B2220/65

摘要： A programmable phonograph record changer which provides automatic sound track selection for each of a plurality of records played sequentially by the record changer. The record changer includes an electro-optic scanner mounted on the pickup arm for sensing the land areas located between the various sound tracks of a disc-type record. An auxiliary tone arm lift and sweep mechanism is controlled by a digital logic system connected to the electro-optic scanner to drive the tone arm across various bands which the user does not want to be reproduced. The logic system includes a programmable memory which stores the preselected sound tracks of a sequence of records which the user intends to be reproduced. A land sensing circuit includes a means for developing a threshold signal which varies with the record surface reflectivity characteristics.

摘要翻译： 一种可编程录音记录转换器，其为由记录变换器顺序播放的多个记录中的每一个提供自动音轨选择。 记录变换器包括安装在拾取臂上的电光扫描器，用于感测位于盘型记录的各个声轨之间的区域区域。 辅助音臂升降机由连接到电光扫描器的数字逻辑系统控制，以驱动音臂跨越用户不想再现的各种频带。 逻辑系统包括可编程存储器，其存储用户想要再现的记录序列的预选音轨。 地面感测电路包括用于显影随着记录表面反射特性而变化的阈值信号的装置。

公开(公告)号：US4484318A

公开(公告)日：1984-11-20

申请号：US475816

申请日：1983-03-16

申请人： Yutaka Morita

发明人： Yutaka Morita

IPC分类号： G11B3/095 ,  G11B3/38 ,  G11B17/06

CPC分类号： G11B3/0957

摘要： An output signal from a photodetector (3) responsive to light reflected at a phonograph record (2) is differentiated to produce positive and negative differential pulses (b.sub.1+, b.sub.1-), and the positive differential pulse (b.sub.1+) is retarded by a time length substantially equal to the time difference between the positive and negative differential pulses (b.sub.1+, b.sub.1-), while the negative differential pulse (b.sub.1-) is inverted to be a positive signal (d). The retarded signal (c) is added to the positive signal (d) so that the amplitude of the positive signal (d) becomes greater than before when the timing of the positive signal matches with the retarded signal (c). A resultant sum signal (e) produced in this way will be compared with a reference value (V.sub.TH1) to detect only unrecorded zones thereby accurately distinguishing unrecorded zones from recorded zones. The circuit arrangement therefore, comprises a differentiator (4), a circuit (D.sub.1, D.sub.2) for separating the positive differential pulse (b.sub.1+) from the negative differential pulse (b.sub.1-), a delay circuit (6), an inverting circuit (7), an adder (8), and a comparator (9).

摘要翻译： 来自光电检测器（3）的响应于在留声机记录（2）处反射的光的输出信号被微分以产生正和负差分脉冲（b1 +，b1-），并且正差分脉冲（b1 +）被延迟时间长度 基本上等于正和负差分脉冲（b1 +，b1-）之间的时间差，而负差分脉冲（b1-）被反相为正信号（d）。 延迟信号（c）被添加到正信号（d），使得当正信号的定时与延迟信号（c）匹配时，正信号（d）的振幅变得比以前更大。 以这种方式产生的合成和信号（e）将与参考值（VTH1）进行比较，以仅检测未记录的区域，从而将未记录区域与记录区域精确区分开。 因此，电路装置包括微分器（4），用于将正差分脉冲（b1 +）与负差分脉冲（b1-）分离的电路（D1，D2），延迟电路（6），反相电路（7） ），加法器（8）和比较器（9）。

公开(公告)号：US4416006A

公开(公告)日：1983-11-15

申请号：US403022

申请日：1982-07-29

申请人： Masatsugu Kitamura ,  Hideo Onoe ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

发明人： Masatsugu Kitamura ,  Hideo Onoe ,  Fumiaki Ohno ,  Tsuyoshi Ono ,  Yukihiro Kishima ,  Yutaka Morita

IPC分类号： G11B3/095 ,  G11B19/24 ,  G11B19/28 ,  G11B17/00

CPC分类号： G11B19/24 ,  G11B3/0957

摘要： A record disc playing apparatus comprises an address signal generating unit for generating address signals corresponding to horizontal rotational angular positions of a tone arm, a device for generating a rotational angular velocity signal corresponding to the rotational angular velocity of the tone arm, a circuit for controlling the rotation of a motor for driving a turntable, a control device supplied with the address signals and having a memory device from which is from which read out information corresponding to the addresses indicated by the address signals, and an attenuation circuit supplied with the rotational angular velocity signal and operating with an attenuation quantity, with respect to the rotational angular velocity signal, which quantity is varied by a signal from the control device. The rotational angular velocity signal corresponds to the quantity of any eccentricity of the record disc. The control device producing as output signals based on the information thus read out. The attenuation circuit supplying an output signal to the control device. The rotation of the motor is so controlled that a rotational irregularity due to any eccentricity of the record disc is corrected for.

摘要翻译： 记录盘播放装置包括地址信号产生单元，用于产生与音调臂的水平旋转角度位置对应的地址信号，用于产生与音调臂的旋转角速度相对应的旋转角速度信号的装置，用于控制的电路 用于驱动转台的电动机的旋转，提供有地址信号的控制装置，并具有存储装置，从存储装置读出与由地址信号指示的地址对应的信息，以及提供有旋转角度的衰减电路 速度信号，并且相对于旋转角速度信号以衰减量操作，该数量由来自控制装置的信号变化。 旋转角速度信号对应于记录盘的任何偏心量的数量。 控制装置根据由此读出的信息产生输出信号。 所述衰减电路向所述控制装置提供输出信号。 马达的旋转受到如此控制，使得由于记录盘的任何偏心而导致的旋转不规则性被校正。

公开(公告)号：US4398278A

公开(公告)日：1983-08-09

申请号：US331074

申请日：1981-12-16

申请人： Kiyoshi Suzuki

发明人： Kiyoshi Suzuki

IPC分类号： G11B3/085 ,  G11B3/095 ,  G11B19/02 ,  G11B33/12 ,  G11B7/00 ,  G11B3/00

CPC分类号： G11B33/121 ,  G11B19/022 ,  G11B3/08512 ,  G11B3/0957

摘要： A program selector for a record player of the type having a turntable supported on a movable carrier which is actuable to move the turntable into and out of a housing, and having a tone arm which is movable across the surface of a record and controllable to play back at least a selected one of plural programs recorded on the record in separate segments which are spaced apart from each other by respecting inter-program gaps. An inter-program gap detector detects the location of each inter-program gap on the record and produces an inter-program gap signal representing that location as the carrier moves the turn-table into the housing. A selector is provided for selecting a prgram to be played by selecting a particular inter-program gap signal which represents the location on the record of the desired program. A tone arm position detector detects the position of the tone arm as it moves across the surface of the record and produces a tone arm position signal representing the relative position of that tone arm. A control circuit compares the tone arm position signal to the selected inter-program gap signal and produces a control signal when the tone arm position signal corresponds to the selected inter-program gap signal so as to cause the tone arm to play back the selected program.

摘要翻译： 一种用于记录播放器的程序选择器，具有支撑在可移动托架上的转台，该转台可致动以将转台移入和移出壳体，并且具有能够跨越记录表面移动并可控制播放的色调臂 通过相互间的程序间隙相互间隔开的分开的片段中的至少一个记录在记录上的多个节目中的所选择的一个节目。 节目间隙检测器检测记录中每个程序间间隙的位置，并且当载体将转台移动到壳体中时产生代表该位置的程序间间隙信号。 提供选择器，用于通过选择表示所需节目的记录上的位置的特定节目间隙信号来选择要播放的节目表。 音臂位置检测器检测音臂在记录表面移动时的位置，并产生表示该音臂的相对位置的音调臂位置信号。 控制电路将音调臂位置信号与所选择的节目间间隙信号进行比较，并且当音色臂位置信号对应于所选择的节目间间隙信号时产生控制信号，以使音调臂回放所选择的节目 。

公开(公告)号：US4135086A

公开(公告)日：1979-01-16

申请号：US782511

申请日：1977-03-29

申请人： Mitsuru Baba

发明人： Mitsuru Baba

IPC分类号： G11B3/095 ,  G11B21/08 ,  H01J3/14

CPC分类号： G11B3/0957

摘要： In a linear tracking pickup arm type automatic record player, the position of the pickup arm is opto-electrically detected by the use of a multi-window scale and a photo-coupler unit, and the pre-assigned position signals stored in a memory are compared with the detected position signal to control the movement of the pickup arm. Therefore, the reproduction and the precisely repeated reproduction of any part of a record disk are made possible.

公开(公告)号：US4114893A

公开(公告)日：1978-09-19

申请号：US670421

申请日：1976-03-25

申请人： Leslie Alan Leach ,  Henry Jamieson Riddoch ,  Neil David Duffy

发明人： Leslie Alan Leach ,  Henry Jamieson Riddoch ,  Neil David Duffy

IPC分类号： G11B3/095 ,  G11B19/06 ,  G11B3/06

CPC分类号： G11B3/0957 ,  G11B19/06

摘要： Gramophone equipment incorporating photoelectric scanning to detect bands between record tracks; an electronic counter to count the detected bands; a selector for making track selections; an electronic memory for storing selections; control circuitry for comparing the contents of the counter and memory to control a tone arm of the equipment to play selected tracks and lift from a record at the end of a selection; and a tone arm drive comprising means for lifting and lowering the arm and means for driving the arm laterally under control of the control circuitry.

摘要翻译： 伴随光电扫描的留声机设备，用于检测记录轨道之间的波段; 用于对检测到的带进行计数的电子计数器; 用于进行曲目选择的选择器; 用于存储选择的电子存储器; 控制电路，用于比较计数器和存储器的内容，以控制设备的音调臂以播放所选轨道并在选择结束时从记录提升; 以及音臂驱动器，其包括用于提升和降低臂的装置和用于在控制电路的控制下横向驱动臂的装置。