公开(公告)号：WO1988007801A1

公开(公告)日：1988-10-06

申请号：PCT/US1988001031

申请日：1988-03-25

Applicant: AMPEX CORPORATION ,  TRYTKO, David, E.

Inventor： AMPEX CORPORATION

IPC: H04N09/77

CPC classification number: H04N5/265

Abstract: A video effects system having a video channel with a recirculating loop (15) for incoming video including means for processing or cutting (22, 30) the video signal during each recirculation, and separately processing video information from the recirculation loop (15) to a combiner (16) at the data output, so that the data output video may be different from the recirculated video.

Abstract translation: 一种具有视频通道的视频通道，具有用于输入视频的循环回路（15），包括用于在每个再循环期间处理或切割（22,30）视频信号的装置，以及将再循环回路（15）的视频信息分别处理为 组合器（16），使得数据输出视频可能与再循环视频不同。

公开(公告)号：WO1988007232A1

公开(公告)日：1988-09-22

申请号：PCT/US1988000683

申请日：1988-03-08

Applicant: AMPEX CORPORATION

Inventor： AMPEX CORPORATION ,  DEFFNER, Gary, W. ,  GOLDBERG, Thomas, R.

IPC: G05G01/04

CPC classification number: G05G5/16 ,  Y10T74/20582 ,  Y10T74/20612 ,  Y10T74/2063 ,  Y10T74/20636 ,  Y10T74/2066

Abstract: A control mechanism having an adjustable lever (17) supported by at least one plate (20, 22) for rotation in a plane generally parallel to said plate (20, 22). A handle (16) is provided at the outer end of the lever (17). A glide element (50) is captured within the lever (17) to extend beyond the side of the lever (17) facing the plates (20, 22). The glide element (50) is mounted to engage the facing side of the plate (20, 22) under slight compression to provide a constant resistive force as the lever (17) is rotated from one end to the other of its required travel. The glide element (50) under slight compression acts as a damped spring and can be considered a precision fixed-force brake.

Abstract translation: 一种控制机构，其具有由至少一个板（20,22）支撑的可调节杆（17），用于在大致平行于所述板（20,22）的平面中旋转。 手柄（16）设置在杠杆（17）的外端。 滑动元件（50）被捕获在杠杆（17）内以延伸超过面向板（20,22）的杠杆（17）的侧面。 滑动元件（50）被安装成在轻微的压缩下接合板（20,22）的相对侧，以在杠杆（17）从其所需行程的一端旋转到另一端时提供恒定的阻力。 轻微压缩的滑行元件（50）用作阻尼弹簧，可以被认为是精密的固定力制动器。

公开(公告)号：WO1987006420A1

公开(公告)日：1987-10-22

申请号：PCT/US1987000823

申请日：1987-04-10

Applicant: AMPEX CORPORATION ,  TROST, Allen, J.

Inventor： AMPEX CORPORATION

IPC: H04N17/06

CPC classification number: H04N17/06

Abstract: To improve video image quality in communication channels wherein video signal information is reproduced multiple times, a system is provided to selectively recirculate a video signal through a videotape recording and playback machine (306) and to identify changes in signal parameters after multiple reproductions of the video signal.

公开(公告)号：WO1987003729A1

公开(公告)日：1987-06-18

申请号：PCT/US1986002733

申请日：1986-12-15

Applicant: AMPEX CORPORATION ,  GOOCH, Beverley, R.

Inventor： AMPEX CORPORATION

IPC: G11B05/127

CPC classification number: G11B5/245 ,  G01R33/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/2452 ,  G11B5/4907 ,  G11B5/4969 ,  G11B5/53 ,  G11B5/588 ,  G11B15/1875

Abstract: Apparatus and method for coupling magnetic flux defining information between a first body of magnetic material (5) and a second body of magnetic material (2) having a magnetic flux path (259) therein. A third body of magnetic material (8) having a transducing zone (9) is included and disposed to be magnetically proximate the first body of magnetic material to couple flux to or from the same, and to have a portion thereof magnetically proximate the magnetic flux path within the second body of magnetic material to provide coupling of flux to or from such flux path. The transducing zone may be controlled for movement across the third body. In specific embodiments described, the first body of magnetic material is a magnetic storage medium (253) such as a layer of hard magnetic material (95) of a tape, and the second body of material is a transducer core (2) of a soft magnetic material.

Abstract translation: 用于将磁性材料（5）的第一本体与其中具有磁通量（259）的第二磁性材料体（2）耦合的磁通定义信息的装置和方法。 包括具有换能区（9）的第三磁体材料体（8），并设置为磁性地靠近第一磁体材料体，以将磁通耦合到磁体材料或与其相耦合，并使其一部分磁性接近于磁通量 在磁体材料的第二体内的路径，以提供通量与该通量路径的耦合。 可以控制转导区域以跨越第三体移动。 在所描述的具体实施例中，磁性材料的第一本体是诸如磁带的硬磁性材料层（95）的磁存储介质（253），并且第二材料体是软的换能器芯（2） 磁性材料。

公开(公告)号：WO1987002490A1

公开(公告)日：1987-04-23

申请号：PCT/US1986002169

申请日：1986-10-17

Applicant: AMPEX CORPORATION ,  LILLEY, Martin, A. ,  WESOLOWSKI, Jan, S.

Inventor： AMPEX CORPORATION

IPC: G06J01/00

CPC classification number: H03L7/08

Abstract: A system and method for controlling the phase of an output signal relative to the phase of a reference signal. A function generator (12) receives a phase control input signal (29) and generates a predetermined periodic waveform having a selected phase displacement with respect to the phase control input signal. A desired phase displacement of the generated waveform is provided in a digital manner by selecting and storing a set of digital values (30) representing samples of the phase displaced waveform. The phase displaced waveform (23) is generated from the set of stored digital sample values (30).

Abstract translation: 一种用于控制输出信号相对于参考信号的相位的相位的系统和方法。 函数发生器（12）接收相位控制输入信号（29）并产生相对于相位控制输入信号具有所选相位移的预定周期性波形。 通过选择和存储表示相移位波形的采样的一组数字值（30），以数字方式提供产生的波形的期望的相位位移。 从所存储的数字样本值集合（30）生成相位移波形（23）。

公开(公告)号：WO1984001252A1

公开(公告)日：1984-03-29

申请号：PCT/US1982001526

申请日：1982-10-27

Applicant: AMPEX CORPORATION ,  RODAL, David, R.

Inventor： AMPEX CORPORATION

IPC: H04N05/782

CPC classification number: G11B5/588 ,  G11B15/4673 ,  G11B15/48

Abstract: A method and apparatus for controlling the capstan servo of a magnetic video tape recording and reproducing machine. The invention provides almost instantaneous color framing and synchronous control track lock when accelerating from a very slow tape speed up to normal speed. An embodiment of the apparatus also stops the tape at a predetermined position relative to control track transitions when stopping the machine from a noncontrol track lock operating mode, such as shuttle, variable speed reproducing and jog.

Abstract translation: 一种用于控制磁性磁带记录和再现机的主导轴伺服的方法和装置。 当从非常慢的磁带速度加速到正常速度时，本发明提供了几乎瞬时的彩色框架和同步控制轨道锁定。 当从非控制轨道锁定操作模式（例如穿梭，可变速度再现和点动）停止机器时，该装置的实施例还将相对于控制轨道转换的预定位置处的磁带停止。

公开(公告)号：WO1989009988A1

公开(公告)日：1989-10-19

申请号：PCT/US1989001467

申请日：1989-04-07

Applicant: AMPEX CORPORATION ,  DOLBY, Dale, P. ,  MAGNUSSON, Steve, L. ,  ALDRICH, William, N. ,  PRICE, Larry, A.

Inventor： AMPEX CORPORATION

IPC: G11B05/588

CPC classification number: G11B5/53 ,  G11B5/588

Abstract: An improved head mounting assembly (10) includes a wedge-shaped head support member (14) which operates in conjunction with a photo-sensitive head positioning apparatus (26) to provide improved tracking for a transducing head mounted on the member.

Abstract translation: 改进的头部安装组件（10）包括与光敏头定位装置（26）结合操作的楔形头部支撑构件（14），以为安装在构件上的换能头提供改进的跟踪。

公开(公告)号：WO1989004539A1

公开(公告)日：1989-05-18

申请号：PCT/US1988003711

申请日：1988-10-21

Applicant: AMPEX CORPORATION

Inventor： AMPEX CORPORATION ,  BARANSKI, Antoni, S.

IPC: G11B25/06

CPC classification number: G11B15/17 ,  G11B25/066

Abstract: A tape transport capable of receiving cassettes of varying sizes, one at the time for play, includes a cassette indexing mechanism capable of selectively positioning the spindles which engage the reels of an associated cassette at a selected distance corresponding to the reel-center-to-reel-center distance of the cassette. Mis-insertion apparatus associated with the transport provides that any cassette smaller than the cassette receiving opening in the transport will be protected against being improperly inserted into the transport.

公开(公告)号：WO1989004046A1

公开(公告)日：1989-05-05

申请号：PCT/US1988003470

申请日：1988-10-11

Applicant: AMPEX CORPORATION

Inventor： AMPEX CORPORATION ,  MAGNUSSON, Steven, L.

IPC: G11B15/61

CPC classification number: G11B15/61

Abstract: A head assembly (10) which provides in the rotary scanner body (18) a tape support structure including a scanner opening (26), a pair of magnetic heads (16) mounted in the scanner opening for the reading and writing of data on a magnetic tape medium, a support member (28) disposed on the scanner body at the scanner opening and extending between the two magnetic heads to support the tape as it moves across the scanner opening, said tape support structure producing a dramatic improvement in signal output across the length of the head scan.

公开(公告)号：WO1988007172A1

公开(公告)日：1988-09-22

申请号：PCT/US1988000880

申请日：1988-03-17

Applicant: AMPEX CORPORATION

Inventor： AMPEX CORPORATION ,  WILLETT, Michael, D.

IPC: G01B07/14

CPC classification number: G01B7/30 ,  G01D5/145

Abstract: Angular rotation of a member (16), such as the shaft of a tension arm assembly, is sensed by the combination of a circular type of magnet (18) secured to the rotatable member and selectively polarized relative to its diameter to define a magnetic north-south pole pair, and a stationary Hall Effect transducing device (22) secured in close and constant proximity to the ring magnet. A circuit coupled to the transducing device includes offset (58) and amplification stages (60). In a preferred embodiment, the Hall Effect transducing device is located in the region of a magnetic null of the field generated by the magnetic poles, when the rotatable member is in a selected angular position. The constant gap between the transducing device and the circular magnet optimizes the generation of a linear output via the circuit, to accurately sense the member rotation.