公开(公告)号：US4519006A

公开(公告)日：1985-05-21

申请号：US449450

申请日：1982-12-13

申请人： Niro Nakamichi

发明人： Niro Nakamichi

IPC分类号： G11B5/48 ,  G11B5/56 ,  G11B5/584 ,  G11B15/12 ,  G11B5/43

CPC分类号： G11B5/56 ,  G11B15/12 ,  G11B5/4893

摘要： This invention relates to a magnetic head device. An azimuth position of a gap of a magnetic head is adjusted relative to the position of a signal on a magnetic tape in a playback mode wherein the magnetic head functions as a reproducing head, while the azimuth position of the magnetic head is returned to a predetermined reference position in response to a selection of a record mode wherein the magnetic head functions as a recording head.

摘要翻译： 磁头装置技术领域本发明涉及磁头装置。 磁头的间隙的方位位置相对于磁带上的信号在重放模式中的位置被调节，其中磁头用作再现头，而磁头的方位位置返回到预定的 响应于选择记录模式的参考位置，其中磁头用作记录头。

公开(公告)号：US4460934A

公开(公告)日：1984-07-17

申请号：US457064

申请日：1982-12-22

申请人： Fumiaki Yamada

发明人： Fumiaki Yamada

IPC分类号： G11B5/127 ,  G11B5/29 ,  G11B5/56 ,  G11B5/58 ,  G11B5/20 ,  G11B5/43

CPC分类号： G11B5/56

摘要： This invention relates to a magnetic head for providing azimuth information therefrom relative to a signal recorded on a magnetic tape. The magnetic head of the invention has first and second coils for providing a reproduced signal corresponding to a recorded signal on the entire width of a recording track and a reproduced signal corresponding to a recorded signal on a part of width of the said recording track.

摘要翻译： 本发明涉及一种磁头，用于相对于记录在磁带上的信号提供方位信息。 本发明的磁头具有第一和第二线圈，用于在记录轨道的整个宽度上提供对应于记录信号的再现信号和对应于所述记录轨道宽度的一部分上的记录信号的再现信号。

公开(公告)号：US4058841A

公开(公告)日：1977-11-15

申请号：US635249

申请日：1975-11-25

申请人： Yoshio Kishi ,  Masaru Nagami

发明人： Yoshio Kishi ,  Masaru Nagami

IPC分类号： G11B15/087 ,  G11B5/008 ,  G11B5/02 ,  G11B5/48 ,  G11B15/00 ,  G11B15/60 ,  G11B27/32 ,  G11B27/34 ,  G11B5/43 ,  G11B5/78

CPC分类号： G11B15/005 ,  G11B27/32 ,  G11B27/34 ,  G11B5/4893 ,  G11B2220/90

摘要： In an apparatus for recording and/or reproducing audio or other information signals in one or more record tracks on a face of a magnetic tape as the latter is guided in a predetermined path, for example, from a supply reel to a take-up reel; a magnetic head is disposed adjacent such path to engage an edge surface of the tape substantially at right angles to the face thereof for recording and/or reproducing a control signal in the tape from such edge surface, whereby to make available an increased proportion of the width of the tape for the record tracks and guard bands therebetween. Preferably, the head for recording and/or reproducing the control signal in the tape from an edge surface thereof is mounted at a tape guide member by which the tape is positioned in the direction of its width. Further, the control signal preferably has a low frequency, for example, of the order of 10 Hz, so as to minimize the spacing loss in recording or reproducing the control signal when the width of the tape is not precisely uniform.

摘要翻译： 在用于在磁带表面上的一个或多个记录磁道中记录和/或再现音频或其他信息信号的装置中，当磁带或其它信息信号以预定路径被引导时，例如从供带盘到卷带盘 ; 磁头靠近这样的路径设置成基本上与其表面成直角接合带的边缘表面，用于在该边缘表面上记录和/或再现带中的控制信号，从而使得可用的增加的比例 用于记录轨道的带的宽度和它们之间的保护带。 优选地，用于从其边缘表面在带中记录和/或再现控制信号的头部安装在带引导构件上，通过该引导构件，带沿着其宽度的方向定位。 此外，控制信号优选地具有例如10Hz量级的低频，以便当带的宽度不精确地均匀时，使记录或再现控制信号时的间隔损耗最小化。

公开(公告)号：US3897379A

公开(公告)日：1975-07-29

申请号：US51283574

申请日：1974-10-04

申请人： US NAVY

发明人： DE FRANCESCO RICHARD E ,  HARRIS BERNARD ,  HOFFMAN DAVID

IPC分类号： G11B20/16 ,  G11B20/22 ,  H04N5/95 ,  G11B5/43

CPC分类号： G11B20/16 ,  G11B20/225 ,  H04N5/95

摘要： A deflutter device for FM recording on magnetic tape which corrects for a varying time base error. Zero crossings from the outputs of a reference oscillator and a reference tone on a first tape track are compared by a flip-flop whose output is a pulse having a width corresponding to the time base error. The output pulse enables a binary counter to provide a digital output which is transformed to an analog voltage by a digital to analog converter. Zero crossings from a second tape track containing recorded data are detected and shifted by a delay multivibrator in accordance with the analog voltage thereby correcting for the time base error.

摘要翻译： 用于在磁带上进行FM记录的减速装置，其校正变化的时基误差。 通过触发器比较来自基准振荡器的输出和第一磁带上的基准音调的零交叉，其触发器的输出是具有对应于时基误差的宽度的脉冲。 输出脉冲允许二进制计数器提供数字输出，该数字输出由数模转换器转换成模拟电压。 来自包含记录数据的第二磁带的零交叉通过延迟多谐振荡器根据模拟电压被检测和偏移，从而校正时基误差。

公开(公告)号：US3869721A

公开(公告)日：1975-03-04

申请号：US40389973

申请日：1973-10-05

申请人： RCA CORP

发明人： KORDA PETER BELA

IPC分类号： G06K7/08 ,  G11B5/00 ,  G11B20/18 ,  G11B5/43

CPC分类号： G11B20/1816 ,  G06K7/08 ,  G11B5/00

摘要： Illegible information recorded along a track of a magnetic record medium is recovered by relatively moving the read head from its normal position at the approximate center of the track to a new position at an edge of the track and then creating relative movement between the head and record medium in the track direction.

摘要翻译： 通过将读取头从轨道的大致中心处的正常位置相对移动到轨道的边缘处的新位置，然后在头部和记录之间产生相对移动来恢复沿着磁记录介质的轨道记录的不可信息 媒体在轨道方向。

公开(公告)号：US4533964A

公开(公告)日：1985-08-06

申请号：US432384

申请日：1982-09-30

申请人： Isao Owaki ,  Susumu Saito ,  Masami Yamazaki

发明人： Isao Owaki ,  Susumu Saito ,  Masami Yamazaki

IPC分类号： G11B20/12 ,  G11B20/18 ,  G11B15/02 ,  G11B5/09 ,  G11B5/43

CPC分类号： G11B20/1809

摘要： A digital signal of data and synchronization words is distributed to a plurality of circuit paths and transformed into non-return-to-zero inverted (NRZI) signals for application to a plurality of stationary parallel magnetic heads for recording the distributed NRZI signals along first parallel tracks on a magnetic tape when driven toward one end thereof and along second parallel tracks interleaved with the first tracks when the tape is driven toward the other end thereof. Each of the transducers has a differential characteristic with which the recorded signal is detected as a ternary signal, the detected signal is converted to a binary signal to recover the original digital signal. The synchronization word is detected from the recovered digital signal to generate a timing signal indicative of the position of each binary digit of the data word with respect to the detected synchronization word. In response to the timing control signal the timing of each binary digit derived from each transducer is aligned with those derived from the other transducers and arranged into a series of successive data words for conversion to an analog signal.

摘要翻译： 数据和同步字的数字信号被分配到多个电路路径并被转换成非归零反转（NRZI）信号，以应用于多个固定并行磁头，用于沿第一并行记录分布式NRZI信号 当磁带朝向其另一端被驱动时，磁带上的磁道沿着其一端被驱动时沿着与第一磁道交错的第二平行轨道移动。 每个换能器具有将记录信号作为三进制信号检测的差分特性，将检测到的信号转换为二进制信号以恢复原始数字信号。 从恢复的数字信号中检测同步字，以产生指示相对于检测到的同步字的数据字的每个二进制数位置的定时信号。 响应于定时控制信号，从每个换能器导出的每个二进制数字的定时与从其他换能器导出的二进制数的定时对准，并且被布置成一系列连续的数据字以转换为模拟信号。

公开(公告)号：US4477848A

公开(公告)日：1984-10-16

申请号：US414533

申请日：1982-08-10

申请人： Ian McWhirter ,  Richard B. Morgan

发明人： Ian McWhirter ,  Richard B. Morgan

IPC分类号： G11B20/00 ,  G11B20/02 ,  G11B23/28 ,  G11B27/30 ,  G11B15/04 ,  G11B5/43 ,  G11B15/02

CPC分类号： G11B27/3036 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/02 ,  G11B2220/90

摘要： The invention provides for the recording of an audio message and subsequent playback thereof and includes a facility for establishing whether the playback message is an authentic reproduction of the original message. The facility is obtained by producing a first data signal indicative of the audio message and recording it together with the audio message and producing a second data signal indicative of the playback message, and comparing the first and the second data signals to establish that the playback is an authentic reproduction of the original message if parity exists between the data signals.

摘要翻译： PCT No.PCT / AU81 / 00190 Sec。 371日期1982年8月10日 102（e）日期1982年8月10日PCT提交1981年12月16日PCT公布。 公开号WO82 / 02111 日期1982年6月24日。本发明提供了一种音频消息的记录和随后的再现，并且包括用于确定回放消息是否是原始消息的可靠再现的设施。 通过产生指示音频消息的第一数据信号并将其与音频消息一起记录并产生指示回放消息的第二数据信号，并且比较第一和第二数据信号以确定播放是 如果在数据信号之间存在奇偶校验，则可以真实地再现原始消息。

公开(公告)号：US4472752A

公开(公告)日：1984-09-18

申请号：US327532

申请日：1981-04-06

申请人： Herman C. Lalesse

发明人： Herman C. Lalesse

IPC分类号： G11B5/56 ,  G11B5/58 ,  G11B5/584 ,  G11B5/27 ,  G11B5/43

CPC分类号： G11B5/56

摘要： A magnetic reading head includes two juxtaposed magnet cores each having a reading gap and an electric winding. The reading gaps are in alignment and each gap has a width which is at most equal to half the width of the information track to be read.

摘要翻译： 磁读头包括两个并置的磁芯，每个磁芯具有读取间隙和电绕组。 读取间隙对齐，每个间隙的宽度最多等于要读取的信息轨迹宽度的一半。

公开(公告)号：US4314355A

公开(公告)日：1982-02-02

申请号：US87424

申请日：1979-10-22

申请人： Robert O. Leighou ,  Leighton A. Meeks

发明人： Robert O. Leighou ,  Leighton A. Meeks

IPC分类号： G11B20/20 ,  H04L25/05 ,  G11B5/43

CPC分类号： H04L25/05 ,  G11B20/20

摘要： A system is disclosed for arranging digital data provided in a plurality of individual information channels. The digital data provided in each channel includes a continuous serial stream of digital data bits having synchronizing signals periodically included therein. All of the channels include a like number of data bits between successive synchronizing signals. Also the data in each of the individual information channels may be skewed in time with respect to corresponding portions of the data in the other information channels. A plurality of processors are provided with each being associated with a corresponding channel and each including a storage device together with means for sensing the occurrence of a synchronizing signal in the corresponding channel together with apparatus for storing data bits in selected positions in the storage means in accordance with the position that the data bits have in the serial stream with respect to the synchronizing signals. Data may be read out from selected positions in each of the storage devices in the various processors in a selected sequence. The readout is commenced under the control of a readout control after a predetermined delay period has lapsed after the sensing of the occurrence of a synchronizing signal in each of the channels. This delay period is dependent upon the maximum anticipated skew.

摘要翻译： 公开了一种用于布置提供在多个个体信息信道中的数字数据的系统。 每个通道中提供的数字数据包括具有周期性地包括在其中的同步信号的数字数据位的连续串行流。 所有通道在相继的同步信号之间包括相似数量的数据位。 此外，每个个体信息信道中的数据在时间上可能相对于其他信息信道中的数据的对应部分而偏斜。 提供了多个处理器，每个处理器与对应的信道相关联，并且每个处理器与包括存储装置的装置一起，以及用于感测在相应信道中发生同步信号的装置以及用于在存储装置中的选定位置存储数据位的装置 根据数据位相对于同步信号在串行流中的位置。 可以以所选序列从各种处理器中的每个存储设备中的选定位置读出数据。 在感测到每个通道中出现同步信号之后经过预定的延迟时间之后，在读出控制的控制下开始读出。 该延迟时间取决于最大预期偏差。

公开(公告)号：US4164764A

公开(公告)日：1979-08-14

申请号：US814294

申请日：1977-07-11

申请人： Kyriacos Joannou

发明人： Kyriacos Joannou

IPC分类号： G11B5/02 ,  G11B5/265 ,  G11B5/48 ,  G11B5/58 ,  G11B33/10 ,  G11B5/43 ,  G11B5/84

CPC分类号： G11B33/10 ,  G11B5/02 ,  G11B5/265 ,  G11B5/488 ,  G11B5/58

摘要： A position reference system is disclosed which provides an indication of the amount of mistracking of a magnetic head while the latter is stationed in its normal operating environment. The system is also capable of providing an indication of the spacing tolerances of a multi-core head. A special tracking medium is recorded against which the position of the head is compared. The sensitivity of the disclosed system permits a determination of mistracking as well as corrective adjustments to be made against visual observation only.

摘要翻译： 公开了一种位置参考系统，其提供磁头的错误量的指示，而后者驻留在其正常操作环境中。 该系统还能够提供多核头的间隔公差的指示。 记录特定的跟踪介质，比较头部的位置。 所公开的系统的灵敏度允许确定误差，以及仅对视觉观察进行校正调整。