公开(公告)号：WO1988005246A1

公开(公告)日：1988-07-14

申请号：PCT/US1988000048

申请日：1988-01-08

Applicant: AMPEX CORPORATION

Inventor： AMPEX CORPORATION ,  STEARNS, John, Carl

IPC: H04N09/89

CPC classification number: H04N5/95 ,  G11B27/024 ,  G11B27/028 ,  G11B2220/90

Abstract: A video recording system employs an editing device (11) to communicate schedules of instructions to a videotape recorder control system (21) which, in turn, communicates selected ones of the instructions from the schedules to a time-base corrector (17) so that the time-base corrector (17) automatically controls and adjusts video signal parameters at the output of the videotape recorder (23) in accordance with an appropriate one of the schedules. Operation of the system includes the steps of storing schedules of instructions in the editing device (11), communicating the schedules of instructions to a videotape recorder control system (21) connected to a time-base corrector (17), storing time lines of the instructions in the videotape recorder control system (21), and operating the time-base corrector (17) to manipulate video signal information at the output of a recorder mechanism (23) according to the time line schedules.

公开(公告)号：WO1987006215A1

公开(公告)日：1987-10-22

申请号：PCT/US1987000824

申请日：1987-04-10

Applicant: AMPEX CORPORATION ,  DANIELS, Dale, R.

Inventor： AMPEX CORPORATION

IPC: B65G01/12

CPC classification number: F16L3/01 ,  B65G1/0407

Abstract: A mounting (12) supports a flexible cable (13) between a stationary frame (14) and a mobile carriage (15). The mounting has two track units (32, 34), each including a guide channel adjacent a parallel belt (41, 54). The cable is anchored at a central first point in the channel (39, 52), extends along the channel, and rolls back upon itself through 180°, contacting the belt, with the channel-belt spacing less than twice the natural radius of curvature of the cable. The cable then extends along the belt and is secured thereto at a second point (44, 56). A first track unit (32) is on the stationary frame for X-axis displacement of the cable, and a second track unit (34) moves with the belt of the first track unit, oriented to displace the cable in a Y-axis direction.

公开(公告)号：WO1987006086A1

公开(公告)日：1987-10-08

申请号：PCT/US1987000729

申请日：1987-03-27

Applicant: AMPEX CORPORATION ,  TAKEMOTO, Sohei

Inventor： AMPEX CORPORATION

IPC: H04L07/00

CPC classification number: G11B27/3027 ,  G11B20/12 ,  H04L7/042

Abstract: A method and apparatus for detecting synchronizing sequences in a digital data stream. The apparatus comprises a plurality of candidate sequence counters (102, 108, 112) and associated vote counters (126, 128, 130) which are used in conjunction with comparators (120, 122, 124) to test the order of received synchronizing symbols of a predefined sequence of predefined symbols against a plurality of corresponding candidate symbols of candidate sequences. A candidate counter begins a new candidate sequence when an ambiguity in the input symbol sequence occurs. The apparatus includes a voter decision logic circuit (38) which selects a winner among the candidates based upon the number of votes or matches tallied for each candidate sequence. Further, the apparatus detects ambiguities in the input symbol stream and loads the candidate counters with candidate symbols to begin-new candidate sequences.

Abstract translation: 一种用于检测数字数据流中的同步序列的方法和装置。 该装置包括与比较器（120,122,124）一起使用的多个候选序列计数器（102,108,112）和相关联的投票计数器（126,128,130），用于测试接收到的同步符号的顺序 针对候选序列的多个相应候选符号的预定义符号的预定义序列。 当输入符号序列出现歧义时，候选计数器开始新的候选序列。 该装置包括选票决定逻辑电路（38），该选举决定逻辑电路（38）根据为每个候选序列计算的投票数或匹配数，在候选者中选择获胜者。 此外，该装置检测输入符号流中的歧义，并将具有候选符号的候选计数器加载到新的候选序列。

公开(公告)号：WO1987003730A1

公开(公告)日：1987-06-18

申请号：PCT/US1986002734

申请日：1986-12-15

Applicant: AMPEX CORPORATION ,  GOOCH, Beverley, R.

Inventor： AMPEX CORPORATION

IPC: G11B05/187

CPC classification number: G01R33/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/4907 ,  G11B5/53

Abstract: Magnetic transducer-keeper (28) combination embodiments of the invention. Each has a magnetic core (20) defining a physical gap (26) and a thin magnetic keeper (28) arranged in close proximity of the core (20) to bridge the gap (26). A magnetic flux (48) from the gap (26) saturates the keeper (28) in an area bridging the gap (26) thereby forming a signal transducing zone (50) in the keeper (28). The keeper (28) is maintained stationary and the core (20) moved or scanned with respect to the same, thereby moving or scanning the transducing zone (50) in the keeper (28).

Abstract translation: 本发明的磁换能器保持器（28）组合实施例。 每个都具有限定物理间隙（26）的磁芯（20）和布置在芯（20）附近以便桥接间隙（26）的薄磁保持器（28）。 来自间隙（26）的磁通（48）在桥接间隙（26）的区域中使保持器（28）饱和，从而在保持器（28）中形成信号转导区（50）。 保持器（28）保持静止并且芯（20）相对于其移动或扫描，从而移动或扫描保持器（28）中的换能区（50）。

公开(公告)号：WO1987003728A1

公开(公告)日：1987-06-18

申请号：PCT/US1986002732

申请日：1986-12-15

Applicant: AMPEX CORPORATION ,  WOOD, Roger, W. ,  GOOCH, Beverley, R. ,  NIEDERMEYER, Rex

Inventor： AMPEX CORPORATION

IPC: G11B05/03

CPC classification number: G11B5/66 ,  G11B5/00 ,  G11B5/02 ,  G11B5/09 ,  G11B5/74

Abstract: Magnetic record media that have an overlying or underlying magnetically saturable high permeability keeper layer (14) in addition to a high coercivity magnetic layer (13) in which magnetic signals are stored. These media are used in magnetic signal processing devices whose transducers (15) are capable of generating a keeper layer-saturating bias flux. In signal reproduction the bias flux magnetically forms a saturation zone in the nature of virtual gap in the keeper layer that directs signal flux between the media and the transducer.

Abstract translation: 除了存储磁信号的高矫顽力磁性层（13）之外，磁记录介质还具有覆盖或潜在的可磁饱和高磁导率保持层（14）。 这些介质用于磁传感器（15）能够产生保持层饱和偏置磁通的磁信号处理装置。 在信号再现中，偏置通量在保持层中的虚拟间隙的性质中磁性地形成饱和区，其指导介质和换能器之间的信号通量。

公开(公告)号：WO1984001253A1

公开(公告)日：1984-03-29

申请号：PCT/US1982001523

申请日：1982-10-27

Applicant: AMPEX CORPORATION ,  RAVIZZA, Raymond, F. ,  RODAL, David, R.

Inventor： AMPEX CORPORATION

IPC: H04N05/93

CPC classification number: G11B15/4731 ,  H04N5/932

Abstract: A method and apparatus for generating an artificial vertical sync pulse for controlling the scanning drum (14) servo of helical wrap magnetic video tape (12) recording and reproducing machine. The artificial vertical sync pulse is less susceptible of experiencing timing errors relative to control track signals caused by tape expansion or contraction because it is physically much closer to the control track head than the conventional vertical sync signal that is normally used to control the scanning drum servo. A component (11) of the beginning portion of the vertical synchronizing signals that is physically present on one side of the drop-out area (30) is detected and this component triggers a counter which opens a window (31) for detecting a particular horizontal sync pulse that is physically close to the control track head (46) and the horizontal sync pulse defines the artificial vertical sync pulse.

Abstract translation: 一种用于产生人造垂直同步脉冲的方法和装置，用于控制螺旋卷磁磁录像机（12）记录和再现机的扫描鼓（14）伺服。 与通常用于控制扫描鼓伺服的常规垂直同步信号相比，人造垂直同步脉冲相对于由磁带扩展或收缩引起的控制轨迹信号较不易受到定时误差的影响， 。 检测物理上存在于脱出区域（30）的一侧的垂直同步信号的开始部分的分量（11），并且该分量触发打开用于检测特定水平面的窗口（31）的计数器 物理上靠近控制轨道头（46）的同步脉冲和水平同步脉冲定义人造垂直同步脉冲。