公开(公告)号：WO1993001590A1

公开(公告)日：1993-01-21

申请号：PCT/US1992005437

申请日：1992-07-01

Applicant: CHAN, John, Y., S.

IPC: G11B05/008

CPC classification number: G11B25/066 ,  G11B23/087

Abstract: An ultra-compact tape cassette system includes an ultra-compact cassette (10) and an adapter (12), simulating a standard compact cassette, which allows the cassette to be played in a recorder designed for a standard compact cassette. When the cassette is inserted into the adapter via a cavity (24) and pivoting cover (32) internal reel brakes (86) are automatically de-activated, and the front door of the cassette is opened, to expose the tape for playing. The adapter further comprises devices (66) which simulate recordable tabs and reflect the recordable status of the ultra-compact cassette.

公开(公告)号：EP0182465A3

公开(公告)日：1988-03-16

申请号：EP85306424

申请日：1985-09-10

Applicant: SONY CORPORATION

Inventor： Wilkinson, James Hedley

IPC: G11B20/10 ,  G11B05/008 ,  H04N05/783 ,  G11B20/18 ,  G11B27/02

CPC classification number: G11B27/005 ,  G11B15/1875 ,  G11B20/10527 ,  G11B2220/90 ,  H04N5/928 ,  H04N5/937

Abstract: 57 A method of and apparatus for reproducing digital audio data which have been recorded in oblique tracks (11) on a magnetic tape (12) in association with digital video data is provided, the audio data in each track (11) having been assembled as blocks of audio data words for recording, and the audio data words having been shuffled in order over a predetermined distance greater than one block prior to recording. In the method, in a slow motion reproduction mode, the recorded audio data is reproduced at a speed lower than the normal reproducing speed, and on a first occasion that any given block of audio data words is reproduced in complete form, that block of audio data words is stored, and each stored block of audio data words is read out under control of a read clock signal the frequency of which is adjusted to correspond to the reproduction speed, whereby the audi data is reproduced with a change in pitch. In a fast motion reproduction mode fragments of the audio data are reproduced without a change in pitch.

公开(公告)号：EP0130572A3

公开(公告)日：1987-08-26

申请号：EP84107472

申请日：1984-06-28

Applicant: HITACHI, LTD.

Inventor： Kobayashi, Masaharu ,  Noguchi, Takaharu ,  Arai, Takao ,  Masuda, Michio ,  Yumde, Yasufumi

IPC: G11B05/52 ,  G11B05/09 ,  G11B05/008 ,  H04N05/782 ,  H04N05/92 ,  H04N09/493

CPC classification number: H04N5/78263 ,  G11B5/0086 ,  G11B5/00865 ,  G11B5/531 ,  G11B20/10527 ,  G11B20/1809 ,  H04N5/926 ,  H04N5/9268 ,  H04N9/8063

Abstract: The recording area of the magnetic tape (2-1, 3-4, 6-6) is divided into a first area (4-5) for recording a PCM converted audio signal and a second area (4-4) for recording a PCM converted video information. In recording the audio signal and the video information which have been separately PCM converted, the magnetic tape (2-1, 3-4, 6-6) is wrapped around the rotary heads (3-1, 6-1) so that a wrap angle (ϕ s , ϕ P ) of each of said first (4-5) and second (4-4) areas is less than 90° with respect to the rotary heads (3-1, 6-1) of a predetermined diameter.

公开(公告)号：EP0196034A3

公开(公告)日：1987-08-19

申请号：EP86103950

申请日：1986-03-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yasuda, Syuhei ,  II, Hiroshi ,  Sasada, Taizo

IPC: G11B20/10 ,  G11B05/008 ,  G11B20/22

CPC classification number: G11B20/22 ,  G11B5/00817 ,  G11B20/10009 ,  G11B20/10527 ,  H04L7/0334

Abstract: 57 An apparatus for recording and reproducing digital signal comprises detector (ZC, PD, 8) for detecting and producing a phase data (P) of a sampled point, a first comparator (16) for comparing a first phase data (P i+1 ) at one sampling point and a second phase data (P;) at one previous sampling point, a second comparator (17) for comparing a predetermined value (N/2) with a phase difference (P-P i ) between the second phase data and newly detected phase data, a condition detecting means (G1, G3, G4), utilizing the results of the first and second comparators, for detecting whether or not two reference phases (pi's) are contained, or no reference phase (pi) is contained, between the first and second sampling points, and for producing an insert signal (P I ) when two reference phases are detected, and producing a delete signal (P D ) when no reference phase is detected, and sampling pulse generating means (f s , 2f s G5, G7, G8) for generating one sampling pulse when neither of the insert signal and delete signal is produced, two sampling pulses when the insert signal is produced; and no sampling pulse when the delete signal is produced.

公开(公告)号：EP0112534A3

公开(公告)日：1987-05-13

申请号：EP83112478

申请日：1983-12-12

Applicant: SONY CORPORATION

Inventor： Yoshinaka, Tadaaki ,  Noguchi, Toshiaki

IPC: G11B05/008 ,  G11B15/14 ,  H04N05/782

CPC classification number: G11B5/0086 ,  G11B20/00007 ,  H04N5/78266 ,  H04N5/92

Abstract: Video signal recording apparatus, wherein a magnetic tape is helically wrapped on a guide drum and comprising a single rotary head for scanning the magnetic tape. One field of the video signal is divided into N segments. Each segment is time-compressed to ensure a time corresponding to an interval where the single rotary head cannot scan the magnetic tape. The segments are sequentially recorded on respective N recording tracks. A synchronizing signal interval of the video signal may also be time-compressed. Seperate memories (15, 16, 19) to be alternatively switched may be used to temporarily store said video signal interval and said time-compressed synchronizing signal interval respectively. Horizontal and vertical synchronizing signal intervals and/or even and odd field intervals may be stored in seperate memories (16A, 168; 16, 19). Only one clock signal generator (14) is sufficient for writing and reading.

公开(公告)号：EP0197333A3

公开(公告)日：1987-01-14

申请号：EP86103154

申请日：1986-03-08

Applicant: Deutsche Thomson-Brandt GmbH

Inventor： Keesen, Werner, Dr.-Ing. ,  Oberjatzas, Günter, Dipl.-Ing. ,  Schandl, Hartmut, Ing. ,  Uhde, Dietmar, Ing. ,  Platte, Hans-Joachim, Dr.-Ing. ,  Hartnack, Wolfgang, Dipl.-Ing. ,  Habben, Dieter, Dipl.-Ing. ,  Schäfer, Ralf-Detlef, Dipl.-Ing. ,  Peters, Hartmut, Dipl.-Ing.

IPC: G11B05/008 ,  G11B05/588

CPC classification number: G11B5/588 ,  G11B5/00839 ,  G11B15/1816 ,  G11B15/1833 ,  G11B15/1875

公开(公告)号：EP0110365A3

公开(公告)日：1985-06-19

申请号：EP83111898

申请日：1983-11-28

Applicant: OLYMPUS OPTICAL CO., LTD.

Inventor： Yunoki, Yutaka ,  Kimura, Kenji ,  Kato, Akira ,  Imamura, Tasuo

IPC: G11B05/008 ,  G11B05/52 ,  G11B05/78 ,  G11B05/12 ,  G11B05/02

CPC classification number: G11B5/531 ,  G11B5/0086 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/534 ,  G11B5/538 ,  H04N5/78263

Abstract: A helical scanning type video tape recorder having a rotary cylinder (2) which is slidable on a video tape (3); and a pair of vertical magnetization recording heads (11, 12) mounted on the peripheral wall of the rotary cylinder (2) at prescribed positions; that plane of the vertical magnetization recording heads (11, 12) which faces the magnetic plane of the video tape (3) being provided with a main magnetic pole (33) and auxiliary magnetic pole (31), thereby causing at least one portion (34a) of the recording magnetic flux (Φ) passing from the auxiliary magnetic pole (31) to the main magnetic pole (33) to penetrate the recording magnetic layer (3c) of the video tape (3) at substantially right angles.

Abstract translation: 一种具有可在录像带（3）上滑动的旋转圆柱体（2）的螺旋扫描型录像机; 和一对在预定位置安装在旋转圆筒（2）周壁上的垂直磁化记录头（11,12） 垂直磁化记录头（11,12）的面对录像带（3）的磁性平面的那个平面设置有主磁极（33）和辅助磁极（31），从而导致至少一部分 从辅助磁极（31）通到主磁极（33）的记录磁通量（Φ）的大小（图34a）基本上以直角穿过录像带（3）的记录磁性层（3c）。

公开(公告)号：EP0255111A3

公开(公告)日：1988-11-02

申请号：EP87110924

申请日：1987-07-28

Applicant: HITACHI, LTD. ,  HITACHI VIDEO ENGINEERING, INC.

Inventor： Itoh, Shigeyuki ,  Watatani, Yoshizumi ,  Tsunoka, Akitoshi

IPC: G11B20/10 ,  H03M07/30 ,  G11B05/008

CPC classification number: G11B20/00007 ,  G11B20/10527 ,  G11B27/032 ,  G11B27/036 ,  G11B2220/90

Abstract: A digital signal recording and reproducing apparatus comprising a dynamic range compression/expansion apparatus. The compression/expansion apparatus (16) receives a digital signal from, for example, an analog-to-digital converter (II) and compresses the dynamic range of the digital signal and the so compressed digital signal is supplied to a recording signal processing circuit (27) in the recording operation mode, while the apparatus receives a digital signal reproduction output from a recording/reproducing head (29, 30) and expands the dynamic range of the reproduced digital signal and the so expanded digital signal is supplied to, for example, a digital-to-analog converter (12) in the reproducing operation mode. The compression/expansion apparatus includes a circuit for controlling the transient response of the apparatus, that is, for controlling the operation of the compression/expansion of the dynamic range of the digital signal during transient of the digital signal so that recording of the digital signal is performed at a high density with a high quality, without suffering breathing effect, overflow, etc.

公开(公告)号：EP0196104A3

公开(公告)日：1988-01-07

申请号：EP86104264

申请日：1986-03-27

Applicant: SONY CORPORATION

Inventor： Okada, Hiroshi ,  Takahashi-Takado

IPC: G11B05/008 ,  G11B20/10 ,  G11B20/12

CPC classification number: G11B27/3027 ,  G11B5/0086 ,  G11B5/00878 ,  G11B20/10527 ,  G11B20/1208 ,  G11B27/029 ,  G11B27/3009 ,  G11B2020/10537 ,  G11B2020/10546 ,  G11B2220/90

Abstract: An apparatus for recording a plurality of audio signals on a slant track of a helically scanned tape. The tape is divided into a plurality of segments (51-55,61-65). A digitized audio signal may be recorded at each of the segments (51-55, 61-65). A control signal (58) is supplied and recorded at a beginning of each segment (51-55, 61-65). The control signal (58) can be used for controlling an operation of the apparatus when the control signal (58) is reproduced.

Abstract translation: 一种用于在螺旋扫描的磁带的倾斜轨道上记录多个音频信号的装置。 磁带被分成多个片段（51-55,61-65）。 数字化的音频信号可以记录在每个片段（51-55,61-65）。 控制信号（58）被提供并记录在每个段（51-55,61-65）的开始处。 当控制信号（58）被再现时，控制信号（58）可以用于控制设备的操作。

公开(公告)号：EP0114690A3

公开(公告)日：1987-09-09

申请号：EP84100611

申请日：1984-01-20

Applicant: Siemens Aktiengesellschaft

Inventor： Gottwald, Winfried, Dipl.-Ing.

IPC: G11B05/008 ,  G11B05/012 ,  G11B05/09 ,  G11B15/44 ,  G11B19/26

CPC classification number: G11B5/00817 ,  G11B5/00878 ,  G11B5/012 ,  G11B20/10