Four channel phonograph multiplex recording system with signal level control
    111.
    发明授权
    Four channel phonograph multiplex recording system with signal level control 失效
    具有信号电平控制的四通道多通道记录系统

    公开(公告)号:US3806667A

    公开(公告)日:1974-04-23

    申请号:US21330671

    申请日:1971-12-29

    CPC classification number: H03G7/06 H04S3/006

    Abstract: A four channel recording system starts with a pre-recorded magnetic tape which is played back by two reproducing heads. A first head is used to detect the output signal level read from the tape. The output from the other head is then controlled responsive to the detected level. Thereafter, the controlled signal is recorded on a phonograph record at signal levels set responsive to the output of the first head.

    Abstract translation: 四通道记录系统从由两个再现头重放的预先记录的磁带开始。 第一个头用于检测从磁带读取的输出信号电平。 然后响应于检测到的电平来控制来自另一头的输出。 此后,受控信号以响应于第一磁头的输出设置的信号电平被记录在留声机记录上。

    Automatic record changer device
    112.
    发明授权
    Automatic record changer device 失效
    自动记录更改装置

    公开(公告)号:US3762722A

    公开(公告)日:1973-10-02

    申请号:US3762722D

    申请日:1970-08-28

    Inventor: TAJIME K

    CPC classification number: G11B17/08 G11B17/16

    Abstract: An automatic record changer device of the type in which records yet to be played are supported by a plurality of record supporting members pivotally mounted at the upper portion of a spindle adapted to move up and down within a main spindle body and adapted to be withdrawn into the main spindle body as the spindle moves downwardly so that only the lowermost record may be dropped onto a turntable. The device is capable of detecting the absence of records on the spindle and rendering all the elements of the device inoperative after completion of the playing of the last record.

    Abstract translation: 一种自动记录更换装置,其中尚待播放的记录的类型由多个记录支持构件支撑,多个记录支撑构件可枢转地安装在主轴的上部,该主轴适于在主轴主体内上下移动并适于被撤回 主轴主体随着主轴向下移动,使得只有最下面的记录可能掉落到转台上。 该设备能够检测主轴上没有记录,并且在完成最后一条记录的播放之后使设备的所有元素不起作用。

    Recording and reproducing system in a rotary magnetic medium recording and reproducing apparatus
    113.
    发明授权
    Recording and reproducing system in a rotary magnetic medium recording and reproducing apparatus 失效
    旋转磁记录和再现装置中的记录和再现系统

    公开(公告)号:US3761604A

    公开(公告)日:1973-09-25

    申请号:US3761604D

    申请日:1971-09-03

    CPC classification number: H04N9/873 H04N5/781

    Abstract: A recording system comprises means for producing a frame pulse and a color frame pulse from an input NTSC system video signal. Track indication pulses consist of a feed pulse and a two bit feed pulse which cause magnetic heads to move in an intermittent stepping movement and. From the feed pulse is produced a record switching pulse which switches recording of the magnetic head. A reproducing system comprises a field setting means for effecting a H/2 processing and a chroma inverting means for inverting the phase of a subcarrier.

    Abstract translation: 记录系统包括用于从输入NTSC系统视频信号产生帧脉冲和彩色帧脉冲的装置。 轨迹指示脉冲包括一个进给脉冲和一个两位进给脉冲,这些脉冲使磁头在间歇的步进运动中移动。 从馈送脉冲产生切换磁头记录的记录切换脉冲。 再现系统包括用于进行H / 2处理的场设置装置和用于反转副载波相位的色差反相装置。

    Compressing and/or expanding system comprising fixed and variable frequency characteristic changing circuits
    114.
    发明授权
    Compressing and/or expanding system comprising fixed and variable frequency characteristic changing circuits 失效
    压缩和/或扩展系统包含固定和可变频率特性改变电路

    公开(公告)号:US3735290A

    公开(公告)日:1973-05-22

    申请号:US3735290D

    申请日:1972-04-18

    Inventor: YAMAZAKI N

    CPC classification number: H03G9/025 H04B1/64

    Abstract: A compressing and/or expanding circuit comprises a first circuit consisting of a frequency characteristic changing circuit having a specific fixed frequency-response characteristic and a frequency characteristic changing circuit including a control element and having a frequency response characteristic variable between a characteristic complementary with said specific fixed frequency response characteristic and a flat characteristic, an amplifier connected in series with the first circuit, and a second circuit provided in a feedback loop associated with the amplifier, which has the same circuit structure as the first circuit. In the compressing circuit, the first circuit, applied with a control signal voltage in response to the level of an input signal, causes its frequency response to vary, whereas the second circuit, applied with a constant voltage, manifests a flat frequency response characteristic. In the expanding circuit, the first circuit, applied with a constant voltage, manifests a flat frequency response characteristic, whereas the second circuit, applied with a control signal voltage corresponding to the signal level, causes its frequency response to vary.

    Abstract translation: 压缩和/或扩展电路包括由具有特定固定频率响应特性的频率特性改变电路和包括控制元件的频率特性改变电路组成的第一电路,并且具有在与所述特定的 固定频率响应特性和平坦特性,与第一电路串联的放大器,以及设置在与放大器相关联的反馈回路中的第二电路,其具有与第一电路相同的电路结构。 在压缩电路中,响应于输入信号的电平施加控制信号电压的第一电路使其频率响应变化,而施加恒定电压的第二电路表现出平坦的频率响应特性。 在扩展电路中,施加恒定电压的第一电路表现出平坦的频率响应特性,而施加与信号电平对应的控制信号电压的第二电路使其频率响应变化。

    Beat signal suppression system for a system for transmitting a frequency modulated wave or a device for recording and reproducing a frequency modulated wave
    115.
    发明授权
    Beat signal suppression system for a system for transmitting a frequency modulated wave or a device for recording and reproducing a frequency modulated wave 失效
    用于发送频率调制波的系统的BEAT信号抑制系统或用于记录和再现频率调制波的装置

    公开(公告)号:US3728475A

    公开(公告)日:1973-04-17

    申请号:US3728475D

    申请日:1970-07-06

    Inventor: INOUE Y MORITA A

    CPC classification number: H04N9/82 H04N5/92 H04N5/923

    Abstract: A system for transmitting or recording and reproducing a frequency modulated wave suppresses beats produced by a carrier wave and a signal component of high energy level distribution, which is disposed in a range of higher frequencies of a wave signal. A frequency component, which is liable to be reproduced as a beat signal, is subjected to pre-emphasis. A demodulated signal obtained by demodulating the frequency modulated signal is subject to deemphasis with a characteristic opposite to the preemphasis characteristics applied to the wave signal. Thus the frequency-phase characteristics of the signals is uniform throughout the system, whereby the influence exerted by moire beat interference on the demodulated signal can be minimized.

    Abstract translation: 用于发送或记录和再现频率调制波的系统抑制由波形产生的节拍和高能量分布的信号分量,其布置在波信号的较高频率的范围内。 容易被再现为拍频信号的频率分量经受预加重。 通过对频率调制信号进行解调而获得的解调信号以与对波信号的预加重特性相反的特性进行去加重。 因此,信号的频率相位特性在整个系统中是均匀的,由此可以最小化由莫尔条纹干扰对解调信号的影响。

    Omni-directional globular speaker system
    116.
    发明授权
    Omni-directional globular speaker system 失效
    OMNI-DIRECTIONAL GLOBULAR SPEAKER系统

    公开(公告)号:US3720787A

    公开(公告)日:1973-03-13

    申请号:US3720787D

    申请日:1971-03-24

    CPC classification number: H04R1/40 H04R1/02 H04R1/26

    Abstract: An omni-directional globular speaker system employs a substantially globular speaker baffle, a plurality of speakers attached to an entire peripheral surface of the speaker baffle, and means for variably adjusting the audio output of a preferred speaker out of a plurality of speakers. The directivity characteristic of the globular speaker system is omni-directional and of a spherical form when the adjusting means is not yet variably adjusted. The variable adjusting means adjusts the directivity characteristic so that the speaker system will have a specified directivity characteristic of a non-spherical form.

    Abstract translation: 全方位球形扬声器系统采用基本上为球形的扬声器挡板,附接到扬声器挡板的整个外围表面的多个扬声器,以及用于可变调节多个扬声器中优选扬声器的音频输出的装置。 当调节装置尚未被可变地调节时,球形扬声器系统的方向性特征是全方位的并且是球形的。 可变调整装置调节方向性特性,使得扬声器系统具有非球形的指定方向性特征。

    Signal compensation system in recording and reproducing apparatus
    117.
    发明授权
    Signal compensation system in recording and reproducing apparatus 失效
    记录和再现装置中的信号补偿系统

    公开(公告)号:US3679822A

    公开(公告)日:1972-07-25

    申请号:US3679822D

    申请日:1970-05-22

    CPC classification number: H04N5/94

    Abstract: The system compensates for an absence of a reproduced signal in one channel with a portion of a reproduced signal in another channel. The compensating signal contains its information which is interrelated with that of the signal absence portion. The compensation is performed by a switching pulse having its width corresponding to an interval of the signal absence portion.

    Abstract translation: 该系统补偿在一个通道中不存在再生信号的一部分在另一个通道中。 补偿信号包含与信号不存在部分相关的信息。 补偿由具有对应于信号不存在部分的间隔的宽度的开关脉冲执行。

    Jitter correction system
    118.
    发明授权
    Jitter correction system 失效
    抖动校正系统

    公开(公告)号:US3676583A

    公开(公告)日:1972-07-11

    申请号:US3676583D

    申请日:1970-08-13

    CPC classification number: H04N5/95

    Abstract: A jitter correction system detects and removes a jitter component, of relatively high frequency, from a reproduced video signal. A reference signal is phase modulated by a jitter component of relatively low frequency. The modulated reference signal and the reproduced signal are compared in phase. The jitter component of low frequency is taken out from the phasecompared error output and fed back to the phase modulating means. On the other hand, the jitter component of high frequency is effectively taken out from the error output.

    Abstract translation: 抖动校正系统从再现的视频信号中检测和去除相对高频的抖动分量。 参考信号由相对低频的抖动分量进行相位调制。 相位比较调制参考信号和再现信号。 低频的抖动分量从相位比较误差输出中取出并反馈到相位调制装置。 另一方面,高频的抖动分量有效地从误差输出中取出。

    Rotation control circuit for transistor motor
    119.
    发明授权
    Rotation control circuit for transistor motor 失效
    用于晶体管电机的旋转控制电路

    公开(公告)号:US3671837A

    公开(公告)日:1972-06-20

    申请号:US3671837D

    申请日:1970-10-20

    Inventor: KANNO SATOSHI

    CPC classification number: H02P6/20

    Abstract: The rotation control circuit comprises a driving circuit performing a switching action to sequentially flow a current to stator windings of a transistor motor and a control switching circuit performing a switching action by a control signal responsive to the rotation speed of a rotor. The control switching circuit acts to perform a current control at the starting time of rotation of the motor and to perform a voltagecurrent control at the time of constant rotation of the motor.

    Abstract translation: 旋转控制电路包括驱动电路,其执行切换动作以顺序地将电流流向晶体管电动机的定子绕组,以及控制开关电路,其响应于转子的转速通过控制信号执行开关动作。 控制切换电路用于在马达的旋转开始时进行电流控制,并且在马达的恒定旋转时执行电压 - 电流控制。

    Temporary stop device for tape recorder
    120.
    发明授权
    Temporary stop device for tape recorder 失效
    TAPE RECORDER的临时停止装置

    公开(公告)号:US3643846A

    公开(公告)日:1972-02-22

    申请号:US3643846D

    申请日:1969-06-19

    Inventor: KATO YOSHIRO

    Abstract: A temporary stop device for tape recorder temporarily or transiently stopping the running of a tape by parting a pinch roller from a rotating capstan which is contacted with the pinch roller by compression and thereafter instantly running the tape by contacting the pinch roller with the capstan. Contacting and parting operations of the pinch roller with and from the capstan are made by a cam means. A cam operation switch and a tape running indication part are housed in a remote control part at some distance apart from the tape recorder body.

    Abstract translation: 用于磁带录音机的临时停止装置暂时或暂时地停止通过压缩与夹送辊接触的旋转绞盘的夹送辊的带状辊,然后通过使夹送辊与绞盘接触而立即运行带。 夹紧辊与绞盘的接触和分离操作由凸轮装置制成。 凸轮操作开关和带运行指示部分被容纳在与磁带记录器主体相距一定距离的远程控制部分中。

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