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    COMPOSITE METAL AND FERRITE HEAD TRANSDUCER AND MANUFACTURING METHOD THEREFOR
    3.
    发明授权
    COMPOSITE METAL AND FERRITE HEAD TRANSDUCER AND MANUFACTURING METHOD THEREFOR 失效
    复合金属及其生产FERRITWANDLERKOPF

    公开(公告)号：EP0650628B1

    公开(公告)日：1997-09-24

    申请号：EP93917210.2

    申请日：1993-07-16

    申请人： AMPEX SYSTEMS CORPORATION

    发明人： GOOCH, Beverley, R. ,  NIEDERMEYER, Rex

    IPC分类号： G11B5/255 ,  G11B5/127 ,  G11B5/17

    CPC分类号： G11B5/10 ,  G11B5/1272 ,  G11B5/1274 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/232 ,  G11B5/235 ,  G11B5/255 ,  Y10T29/49043

    摘要： A magnetic transducer (10) formed as a composite of three different materials for reproducing and/or recording signals with a magnetic medium, the transducer including first and second generally identical sections (12, 12'), which, when bonded together in opposing relation, form a transducer having aligned recesses (13, 13') in the outer edges and a formed winding window opening (19, 19') adjacent the pole tips, the window being arranged for receiving coil turns therethrough for providing the coil (32) on a line generally parallel to the tape contact surface of the transducer (10), the core legs (18, 18') being formed of two strips of Alfesil material, or the like, deposited or sputtered on the substrate. Each core section (12, 12') is formed as a portion of an elongate ferrite block substrate (20) with a thin cap of non-magnetic material (16, 16'), initially shaped to provide opposing elongate bonding notches (26, 28) on opposite edges of a common surface (22), and an intermediate winding groove (19b) in proximate relation to one of the notches. The winding groove preferably protrudes into the non-magnetic material to about half its depth. Thereafter the workpiece is provided with an array or a plurality of equally spaced V-shaped track width defining grooves (40a-40j) oriented in a direction perpendicular to the winding groove (19b), with the grooves defining pole edges having tapered side surfaces. A chrome adhesion layer is deposited on the grooved surface and into the winding groove, followed by a core layer of suitable magnetic material, such as Alfesil material which provides a pole material covering the edges as well as the tapered side surfaces. A chrome adhesion layer is applied to the Alfesil layer, followed by a gap layer of insulating material. Two of such workpieces (20, 20') are then placed with the edges in facing opposing aligned abutting relation and glass bonding is effected by means of the two bonding notches (26, 28).

    VIDEO EFFECTS SYSTEM WITH RECIRCULATION VIDEO COMBINE AND OUTPUT COMBINE
    5.
    发明授权
    VIDEO EFFECTS SYSTEM WITH RECIRCULATION VIDEO COMBINE AND OUTPUT COMBINE 失效
    与VIDEOWIEDERHOLMISCHUNG和输出MIX视频效果系统。

    公开(公告)号：EP0307471B1

    公开(公告)日：1995-05-24

    申请号：EP88904755.1

    申请日：1988-03-25

    申请人： AMPEX SYSTEMS CORPORATION

    发明人： TRYTKO, David, E.

    IPC分类号： H04N9/77 ,  H04N5/52 ,  H04N5/262

    CPC分类号： H04N5/265

    摘要： 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.

    METHOD AND APPARATUS FOR IMAGE DATA COMPRESSION USING COMBINED LUMINANCE/CHROMINANCE CODING
    6.
    发明公开
    METHOD AND APPARATUS FOR IMAGE DATA COMPRESSION USING COMBINED LUMINANCE/CHROMINANCE CODING 失效
    方法和设备图像数据压缩BY亮度/色度的编码。

    公开(公告)号：EP0619059A1

    公开(公告)日：1994-10-12

    申请号：EP93901216.0

    申请日：1992-12-17

    申请人： AMPEX SYSTEMS CORPORATION

    发明人： COLEMAN, Charles, H. P.O. Box 1397 ,  MILLER, Sidney, D. ,  SMIDTH, Peter

    IPC分类号： H04N5 ,  H04N7 ,  H04N9 ,  H04N11

    CPC分类号： H04N5/9264 ,  H04N9/8047 ,  H04N11/044 ,  H04N19/124 ,  H04N19/14 ,  H04N19/146 ,  H04N19/176 ,  H04N19/186 ,  H04N19/60 ,  H04N19/88

    摘要： L'invention porte sur une technique afférente à un système pour image en couleurs qui présente une composante de luminance et deux composantes de différence de couleur (chrominance) (10, 12, 14, 16, 18, 20, 24) et qui réserve dans le flux de données comprimées plus d'espace à la composante du signal se caractérisant par le plus grand contenu ou la plus grande complexité d'information. Cette technique combine donc le codage des composantes des données qui représentent une même portion d'image en réaction aux besoins réels de cette composante, avant le codage des données combinées. A cette fin, le calcul des facteurs de quantification (32, 34) tient compte de la teneur combinée en informations des deux composantes de luminance et de chrominance pour la même partie d'image. Ainsi, une chrominance peu complexe permet la transmission (42, 44) d'une plus grande partie de l'information de luminance et vice-versa. Cette technique permet aussi de prédéterminer la complexité relative des composantes du signal et donc de leur allouer à l'avance dans le flux de données comprimées l'espace proportionnel à leur complexité mesurée.