Abstract:
Embodiments of the present invention provide a coding system that codes data according to a pair of coding chains. A first coding chain generates coded video data that can be decoded by itself to represent a source video sequence of a small size, such as a size sufficient to support the real time playback and display features of a video editing application. The second coding chain generates coded video data representing supplementary data, which when decoded in conjunction with the coded video data of the first coding chain, yields the source video sequence for full-size display. The output of the first coding chain may be stored in memory in a file structure that can be accessed independently of the second chain's output and, therefore, it facilitates real time decoding and playback.
Abstract:
A magnetic head wherein a slide face (120) for a magnetic tape to slide has a magnetic gap (g) for exchanging information with the magnetic tape, with the track width (Tw) of the magnetic gap (g) regulated by a track width restricting part formed by butting a pair of magnetic core halves (110a, 110b) having track width restricting grooves (111a−111d), respectively, with metal magnetic films (112a−112f) disposed by alignment with the magnetic gap (g) and the track width restricting part, and a groove part (130) formed almost in parallel with the slide direction of the magnetic tape provided in one end part of the magnetic gap (g) shows the relation of the distance L(µm) between a first intersection (P) of one track width restricting groove (111b) formed in one magnetic core half (110a) with one edge of the groove part (130) and a second intersection (Q) of the magnetic gap (g) with the other edge of the groove part (130), L≥11.3 1nI−21.9, to a recording current value I [mA],and prevents demagnetization occurring within a recording track of the magnetic tape.
Abstract:
An improved magnetic head structure which places a laminate at the gaps of the head, said laminate deposited on each substrate facing the gap, and comprising alternating layers of first and second magnetic materials, said first material having a higher coercivity than said second material.
Abstract:
The general concept of the invention is to coat, at least, the trailing pole face of a pair of ferrite pole faces (26), which define a transducer gap, with high-saturation material (30) such as Sendust. By so structuring a head with a gap liner, not only is the critical part of its gap defined by material having a high saturation magnetization -- and thus such head will no be easily subject to critical pole tip saturation of its trailing pole face -- but also (1) the long-wearing ferrite will desirably constitute the principal head part that slidingly coacts with a recording medium, (2) no high reluctance glue line will exist between a core and its tips, and (3) the signal flux will enter the gap region uniformly over the surface of the gap, thereby providing enhanced high frequency efficiency.
Abstract:
Embodiments of the present invention provide a coding system that codes data according to a pair of coding chains. A first coding chain generates coded video data that can be decoded by itself to represent a source video sequence of a small size, such as a size sufficient to support the real time playback and display features of a video editing application. The second coding chain generates coded video data representing supplementary data, which when decoded in conjunction with the coded video data of the first coding chain, yields the source video sequence for full-size display. The output of the first coding chain may be stored in memory in a file structure that can be accessed independently of the second chain's output and, therefore, it facilitates real time decoding and playback.
Abstract:
A magnetic head device retrieves information signals from recording media, such as magnetic tape, which records information signals in tracks adjacent to one another. Magnetic core halves are opposed and joined in such a positional relation that cross talk noises read from adjacent tracks are reduced. The core halves are easily joined, thus facilitating the manufacture of recording heads.
Abstract:
The formation of a gap in a magnetic head core or the junction of a thin magnetic film of a metal with an oxide substrate of a magnetic head made of a composite of a thin magnetic film of a metal with an oxide material are conducted by the thermal diffusion between golden layers themselves at a low temperature. Then, chromium or titanium is made present between the gold layer and the junction surface to prevent deterioration of magnetic characteristics and generation of false gap and, at the same time, to heighten the junction strength. The thermal diffusion between golden layers themselves is effected at a temperature lower than that of glass fusion to suppress the deterioration of magnetic characteristics, distortion caused by the thermal expansion, and diffusion reaction on the interface. The chromium or titanium layer works to maintain junction strength between the thin magnetic layer or the oxide substrate and the golden layer.
Abstract:
A high-reliability, high-performance magnetic head used in a high-density-recording-enabled magnetic recording/reproducing device and using a high-saturation-magnetic-flux-density metal magnetic film to enhance the mechanical strength of magnetic head-use sealing glass; and a magnetic recording/reproducing device using the head. Magnetic head-use sealing glass having a composition containing, in terms of oxide, 17.2- 25 wt.% of SiO2, 1-10 wt.% of B2O3, 58-75 wt.% of PbO, 0.2-7 wt.% of at least one of Al2O3 and ZnO, and 0.2-5 wt.% of at least one of Na2 and K2O; and a magnetic head and a magnetic recording/reproducing device using the sealing glass.
Abstract translation:在高密度记录磁记录/再现装置中使用的高可靠性,高性能磁头,并且使用高饱和磁通密度金属磁性膜来提高磁头使用的机械强度 密封玻璃; 以及使用该磁头的磁记录/再现装置。 磁头用密封玻璃,其组成包含以氧化物计17.2-25重量%的SiO 2,1-10重量%的B 2 O 3,58-75重量%的PbO,0.2-7重量%的 Al 2 O 3和ZnO中的至少一种和0.2-5重量%的Na 2和K 2 O中的至少一种; 以及使用密封玻璃的磁头和磁记录/再现装置。
Abstract:
A glass composition comprising 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3, 0 to 4 wt % of Al2O3, 0 to 5 wt % of at least one selected from Li2O, Na2O and K2O, and 0 to 15 wt % of at least one selected from MgO, CaO, SrO and BaO; and a magnetic head using the glass composition. The glass composition is substantially free of lead, and has a low softening point and good water resistance which are sufficient for use in various electronic devices.
Abstract translation:一种玻璃组合物,其包含0.5-14重量%的SiO 2,3至15重量%的B 2 O 3,4至22重量%的ZnO,55至90重量%的Bi 2 O 3,0至4重量%的Al 2 O 3,0至5重量%的 选自Li 2 O,Na 2 O和K 2 O中的至少一种,以及0〜15重量%的选自MgO,CaO,SrO和BaO中的至少一种。 和使用该玻璃组合物的磁头。 玻璃组合物基本上不含铅,并且具有低的软化点和良好的耐水性,其足以用于各种电子设备中。