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    • 2. 发明公开
    • Digital signal recording and reproducing apparatus
    • Vorrichtung zum Aufzeichnen und Wiedergeben eines digitalen Signals。
    • EP0465255A2
    • 1992-01-08
    • EP91306100.8
    • 1991-07-04
    • SONY CORPORATION
    • Kubota, Yukio, c/o Patents DivisionKanota, Keiji, c/o Patents Division
    • H04N5/92
    • H04N5/926H04N9/7925
    • Digital signal recording and reproducing apparatus records digital signals in successive tracks on a record medium (T) and reproduces digital signals therefrom. A rotary head assembly (11) including two pairs of head sub-assemblies separated by 180°, with each sub-assembly comprising a pair of heads (H) displaced from each other in a direction parallel to the track pitch, is driven at a predetermined rotational speed to record digital signals selectively supplied at respectively different original transmission rates which have a predetermined ratio. The digital signals are timebase modified (7) to have substantially the same data rate even although their original transmission rates differ from each other. The record medium (T) is driven (14) during a recording mode at respectively different speeds determined by the original transmission rate of the selectively supplied digital signal, whereby the number of tracks recorded on the record medium (T) during a unit time period (TP) corresponds to the original transmission rate. The record medium (T) is driven during a reproducing mode at the same speed as was used during recording, whereby during the unit time period (TP) the rotary head assembly (11) reproduces digital signals from twice the number of tracks that had been recorded during that same time period TP.
    • 数字信号记录和再现装置将数字信号记录在记录介质(T)上的连续轨道中,并再现数字信号。 旋转头组件(11)包括两对分开的180度的头部子组件,每个子组件包括在与轨道间距平行的方向上彼此偏移的一对头部(H) 预定旋转速度以记录分别以具有预定比例的不同原始传输速率选择性地提供的数字信号。 即使原始传输速率彼此不同,数字信号也经过时基修改(7)以具有基本上相同的数据速率。 记录介质(T)在记录模式期间以分别由选择性提供的数字信号的原始传输速率确定的速度驱动(14),由此在单位时间段内记录在记录介质(T)上的轨道数 (TP)对应于原始传输速率。 记录介质(T)在再现模式下以与记录期间使用的速度相同的速度被驱动,由此在单位时间段(TP)期间,旋转磁头组件(11)再现来自已经被记录的磁道数量的两倍的数字信号 在同一时期TP记录。
    • 4. 发明公开
    • Digital signal recording and reproducing apparatus
    • 数字信号记录和再现设备
    • EP0465255A3
    • 1993-04-07
    • EP91306100.8
    • 1991-07-04
    • SONY CORPORATION
    • Kubota, Yukio, c/o Patents DivisionKanota, Keiji, c/o Patents Division
    • H04N5/92
    • H04N5/926H04N9/7925
    • Digital signal recording and reproducing apparatus records digital signals in successive tracks on a record medium (T) and reproduces digital signals therefrom. A rotary head assembly (11) including two pairs of head sub-assemblies separated by 180°, with each sub-assembly comprising a pair of heads (H) displaced from each other in a direction parallel to the track pitch, is driven at a predetermined rotational speed to record digital signals selectively supplied at respectively different original transmission rates which have a predetermined ratio. The digital signals are timebase modified (7) to have substantially the same data rate even although their original transmission rates differ from each other. The record medium (T) is driven (14) during a recording mode at respectively different speeds determined by the original transmission rate of the selectively supplied digital signal, whereby the number of tracks recorded on the record medium (T) during a unit time period (TP) corresponds to the original transmission rate. The record medium (T) is driven during a reproducing mode at the same speed as was used during recording, whereby during the unit time period (TP) the rotary head assembly (11) reproduces digital signals from twice the number of tracks that had been recorded during that same time period TP.
    • 6. 发明公开
    • Reproducing and post-recording digital signals
    • Gerätzur Nachspeicherung und Wiedergabe von digitalen Signalen。
    • EP0533462A2
    • 1993-03-24
    • EP92308443.8
    • 1992-09-16
    • SONY CORPORATION
    • Kubota, Yukio, c/o Patents DivisionSenshu, Yoichirou, c/o Patents Division
    • G11B20/12G11B20/10G11B5/58G11B27/036G11B27/30
    • G11B20/10G11B15/125G11B15/1875G11B15/4678G11B20/1208G11B27/032G11B27/036G11B27/3063G11B2220/90H04N5/78263H04N5/9201H04N5/926H04N5/9267
    • Apparatus for reproducing and after-recording digital signals in slanting recording tracks (20) arranged sequentially on a recording medium (6) includes a recording subsystem (28) for recording digital signals in each of the tracks (20) and a reproducing subsystem (32) for reproducing digital signals therefrom. The recording and reproducing subsystems (28, 32) include one or more recording and/or reproducing heads (30a, 30b) for scanning the tracks (20) for recording and reproducing digital data therein. A tracking control subsystem (10 to 17, 19) controls tracking of the heads (30a, 30b) with respect to the tracks (20) in a reproducing mode based upon tracking signals (ATF1, ATF2) recorded in both first and second tracking signal recording areas (AT1, AT2) of the tracks located at initial and final scan positions (22, 24), respectively, of each track. In an after-recording mode, the tracking control subsystem (10 to 17, 19) utilises tracking signals (ATF1 or ATF2) recorded in only one of the tracking signal recording areas (AT1, AT2) while recording digital signals in a sub information recording area (AU1, AU2, SC) proximal to the area from which the utilised tracking signals are obtained.
    • 用于在依次布置在记录介质(6)上的倾斜记录轨道(20)中再现和后记录数字信号的装置包括:记录子系统(28),用于在每个轨道(20)和再现子系统(32)中记录数字信号 )用于从其再现数字信号。 记录和再现子系统(28,32)包括用于扫描用于在其中记录和再现数字数据的轨道(20)的一个或多个记录和/或再现磁头(30a,30b)。 跟踪控制子系统(10至17,19)基于记录在第一跟踪信号和第二跟踪信号中的跟踪信号(ATF1,ATF2),以再现模式控制对于磁道(20)的磁头(30a,30b)的跟踪 分别位于每个轨道的初始和最终扫描位置(22,24)处的轨道的记录区域(AT1,AT2)。 在后续记录模式中,跟踪控制子系统(10至17,19)利用记录在跟踪信号记录区(AT1,AT2)中的一个中的跟踪信号(ATF1或ATF2),同时在子信息记录中记录数字信号 区域(AU1,AU2,SC),靠近从其获得利用的跟踪信号的区域。
    • 9. 发明公开
    • Reproducing and post-recording digital signals
    • 复制和录制后的数字信号
    • EP0533462A3
    • 1994-04-20
    • EP92308443.8
    • 1992-09-16
    • SONY CORPORATION
    • Kubota, Yukio, c/o Patents DivisionSenshu, Yoichirou, c/o Patents Division
    • G11B20/12G11B20/10G11B5/58G11B27/036G11B27/30
    • G11B20/10G11B15/125G11B15/1875G11B15/4678G11B20/1208G11B27/032G11B27/036G11B27/3063G11B2220/90H04N5/78263H04N5/9201H04N5/926H04N5/9267
    • Apparatus for reproducing and after-recording digital signals in slanting recording tracks (20) arranged sequentially on a recording medium (6) includes a recording subsystem (28) for recording digital signals in each of the tracks (20) and a reproducing subsystem (32) for reproducing digital signals therefrom. The recording and reproducing subsystems (28, 32) include one or more recording and/or reproducing heads (30a, 30b) for scanning the tracks (20) for recording and reproducing digital data therein. A tracking control subsystem (10 to 17, 19) controls tracking of the heads (30a, 30b) with respect to the tracks (20) in a reproducing mode based upon tracking signals (ATF1, ATF2) recorded in both first and second tracking signal recording areas (AT1, AT2) of the tracks located at initial and final scan positions (22, 24), respectively, of each track. In an after-recording mode, the tracking control subsystem (10 to 17, 19) utilises tracking signals (ATF1 or ATF2) recorded in only one of the tracking signal recording areas (AT1, AT2) while recording digital signals in a sub information recording area (AU1, AU2, SC) proximal to the area from which the utilised tracking signals are obtained.
    • 用于在记录介质(6)上顺序排列的倾斜记录轨道(20)中再现和后记录数字信号的设备包括用于在每个轨道(20)中记录数字信号的记录子系统(28)和用于在记录介质 )用于从中再现数字信号。 记录和再现子系统(28,32)包括一个或多个记录和/或再现磁头(30a,30b),用于扫描磁道(20)以便在其中记录和再现数字数据。 跟踪控制子系统(10至17,19)基于记录在第一和第二跟踪信号(ATF1,ATF2)中的跟踪信号(ATF1,ATF2)控制再现模式下磁头(30a,30b)相对于磁道(20)的跟踪 分别位于每个轨道的初始和最终扫描位置(22,24)处的轨道的记录区域(AT1,AT2)。 在后录制模式中,跟踪控制子系统(10至17,19)利用仅记录在跟踪信号记录区(AT1,AT2)中的一个中的跟踪信号(ATF1或ATF2),同时将数字信号记录在子信息记录 区域(AU1,AU2,SC)接近从中获得所利用的跟踪信号的区域。