公开(公告)号：AU643951B2

公开(公告)日：1993-12-02

申请号：AU6300290

申请日：1990-09-20

Applicant: SONY CORP

Inventor： NOGUCHI MASAYOSHI ,  YAMADA MAKOTO

IPC: G11B15/467 ,  G11B15/46 ,  G11B15/44

Abstract: A rotary head magnetic tape apparatus, in which a take-up reel is driven in a controlled manner so that the detected tape running speed is equal to a reference tape running speed corresponding to preset tape speed data, and the rotary drum is driven in a controlled manner so that the detected drum rotating speed is equal to a reference drum rotating speed associated with the preset tape speed data, such that the speed of the magnetic tape relative to the magnetic head provided on the rotary drum may be accurately maintained.

公开(公告)号：AU6783590A

公开(公告)日：1991-07-04

申请号：AU6783590

申请日：1990-12-07

Applicant: SONY CORP

Inventor： NOGUCHI MASAYOSHI ,  YAMADA MAKOTO

IPC: G11B15/467 ,  G11B15/46 ,  G11B15/62

Abstract: A system is provided for controlling positions of record tracks relative to a scanning trace of a head device (12A;12B). An envelope detector (36) detects an envelope of an output from a head device (12A;12B) operative to scan a record tape (13) along a scanning path transverse to record tracks. A pulse generator (40) produces two pulses appearing respectively at predetermined time points in a period of a scanning trace of the head device (12A;12B). A level sampler (37) samples a level of a detection output from the envelope detector (36) with the pulses produced by the pulse generator (40) to produce two sampled outputs. A dislocation detector (41) detects dislocation of a group of record tracks traversed by the head device (12A;12B) relative to the scanning trace of the head device (12A;12B) based on a difference between the sampled outputs from the level sampler (37). A tape controller (42,45) adjusts a travelling speed of the record tape (13) to control positions of the record tracks traversed by the head device (12A;12B) relative to the scanning trace of the head device (12A;12B) in response to a detection output from the dislocation detecting circuit (41).

公开(公告)号：AU6657390A

公开(公告)日：1991-05-30

申请号：AU6657390

申请日：1990-11-13

Applicant: SONY CORP

Inventor： FUKAMI TADASHI ,  YAMADA MAKOTO ,  KAJIWARA TSUTOMU

IPC: G11B15/18 ,  G11B20/10 ,  G11B27/032 ,  G11B27/036 ,  G11B27/10 ,  G11B27/30

Abstract: A digital signal processing circuit (8) for processing and recording data at various selectable rates, having an input/output circuit (40, 41) for receiving and outputting a digital signal; a recording circuit for generating a recording signal based on a digital signal received by the data signal processing circuit; a playback circuit (48) for retrieving recorded data; and a demodulation circuit for demodulating retrieved data. The processing and recording rates are determined by control data supplied to the circuit either via an operator or from a recorded signal.

公开(公告)号：AU6576190A

公开(公告)日：1991-05-30

申请号：AU6576190

申请日：1990-11-01

Applicant: SONY CORP

Inventor： FUKAMI TADASHI ,  YAMADA MAKOTO ,  KAJIWARA TSUTOMU

IPC: G11B15/12 ,  G11B15/18 ,  G11B20/10

Abstract: A digital signal processing circuit being to support different arrangements of a rotary drum or the like by adapting the circuit to output a record signal at timing switched in accordance with the structure of the rotary drum and the like. The digital signal processing circuit comprises memory means for storing control data representative of the diameter of the rotary drum, the lap angle of the magnetic tape wound around the rotary drum, and the arrangement of the magnetic heads on the rotary drum; and means connected to the memory means and responsive to the stored control data for outputting the record signal at a specific transmission speed and at a timing switched as a function of the data stored in the memory means.

公开(公告)号：CA1264851A

公开(公告)日：1990-01-23

申请号：CA472620

申请日：1985-01-23

Applicant: SONY CORP

Inventor： SUGIKI HIRAKU ,  ODAKA KENTARO ,  SATAKE TOMOJI ,  OHMORI TAKASHI ,  YAMADA MAKOTO

IPC: G11B5/588 ,  G11B15/18 ,  G11B15/467 ,  G11B20/10 ,  G11B21/10 ,  H04N5/7826

Abstract: In a system for recording and reproducing digital signals on a magnetic tape by using a rotary head, in which signals are recorded as a series of slanted tracks without guard bands, a pilot signal that controls tracking alignment of a playback head is recorded at a particular position in a specific pilot signal record region, independent from the information signal record region. The pilot signal is arranged at first predetermined positions separated from the ends of the slanted tracks in the pilot signal record region on every other one of the slanted tracks and at second predetermined positions separated from the ends of the slanted tracks in the pilot signal record region on the alternate ones of the slanted tracks. An erase signal can also be recorded in the pilot signal record region such that a start position of the erase signal corresponds substantially to a center portion of the pilot signal on the adjacent track. When the recorded tracks are reproduced by a rotary playback head having a tracing width greater than the track width, the pilot signals from the adjacent tracks will be detected and compared in level, and the comparison output used to control the tracking alignment of the rotary playback head.

公开(公告)号：AU583289B2

公开(公告)日：1989-04-27

申请号：AU4644485

申请日：1985-08-20

Applicant: SONY CORP

Inventor： SUGIKI HIRAKU ,  YAMADA MAKOTO ,  MIYAMORI SHINJI

IPC: G11B5/588 ,  G11B15/467 ,  G11B21/10

Abstract: In an apparatus for reproducing signals in a plurality of oblique tracks (5A,5B) on a recording medium (2) by a rotary head (1A,1B), the signals in the tracks (5A,5B) contain a digital information signal in a first predetermined area on the oblique tracks (5A,5B) and a tracking control signal including a tracking pilot signal (P) and an erase signal (E) in a second predetermined area. When the recorded tracks (5A,5B) are reproduced by a rotary playback head (1A,1B) having a tracing width greater than the track width, the pilot signals (P) from the adjacent tracks (5A,5B) will be detected and compared in level. A tracking signal for controlling the tracking alignment of the rotary playback head (1A,1B) is generated in response to the level comparison, and is adjusted in level response to the level of the tracking control signal.

公开(公告)号：AU4644485A

公开(公告)日：1986-03-13

申请号：AU4644485

申请日：1985-08-20

Applicant: SONY CORP

Inventor： SUGIKI HIRAKU ,  YAMADA MAKOTO ,  MIYAMORI SHINJI

IPC: G11B5/588 ,  G11B15/467 ,  G11B21/10

Abstract: In an apparatus for reproducing signals in a plurality of oblique tracks (5A,5B) on a recording medium (2) by a rotary head (1A,1B), the signals in the tracks (5A,5B) contain a digital information signal in a first predetermined area on the oblique tracks (5A,5B) and a tracking control signal including a tracking pilot signal (P) and an erase signal (E) in a second predetermined area. When the recorded tracks (5A,5B) are reproduced by a rotary playback head (1A,1B) having a tracing width greater than the track width, the pilot signals (P) from the adjacent tracks (5A,5B) will be detected and compared in level. A tracking signal for controlling the tracking alignment of the rotary playback head (1A,1B) is generated in response to the level comparison, and is adjusted in level response to the level of the tracking control signal.

公开(公告)号：AU4564385A

公开(公告)日：1986-02-13

申请号：AU4564385

申请日：1985-07-31

Applicant: SONY CORP

Inventor： ODAKA KENTARO ,  OHMURA YOSHIMOTO ,  OHMORI TAKASHI ,  YAMADA MAKOTO ,  SUGIKI HIRAKU

IPC: G11B5/588 ,  C07F9/6509 ,  C07F9/6558 ,  G11B5/592 ,  G11B15/467 ,  G11B20/12 ,  G11B21/10

Abstract: in a system for recording and reproducing digital signals on a magnetic tape (2) using a rotary head (1A, 1 B), in which the signals are recorded as a series of oblique tracks (5A, 5B) without guard bands, a pilot signal that controls tracking alignment of a playback head (1 A, 1 B) is recorded at a particular position in a specific pilot signal record region, different from the information signal record region. An erase signal having various recording lengths is also recorded in the pilot signal region such that a start position of the erase signal corresponds substantially to a centre portion of the pilot signal on the adjacent track (5A, 5B). When the recorded tracks are reproduced by a playback head (1 A, 1 B) having a tracing width greateer than the track width, the pilot signals from the adjacent tracks (5A, 5B) will be sampled by sampling pulses generated in response to the reproduced erase signal and compared in level, and the comparison output will be used to control the tracking alignment of the playback head (1A, 1B).

公开(公告)号：DE60232777D1

公开(公告)日：2009-08-13

申请号：DE60232777

申请日：2002-01-15

Applicant: SONY CORP

Inventor： HIRABAYASHI MITSUHIRO ,  YAMADA MAKOTO ,  ISHIZAKA TOSHIHIRO ,  TSUJII SATOSHI

IPC: G06F3/06 ,  H04N5/92 ,  G06F12/00 ,  G11B20/10 ,  G11B20/12 ,  G11B27/00 ,  G11B27/034 ,  H04N5/781 ,  H04N5/783 ,  H04N5/85 ,  H04N9/804 ,  H04N19/00 ,  H04N19/126 ,  H04N19/152 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/625 ,  H04N19/65 ,  H04N19/70 ,  H04N19/85 ,  H04N19/89 ,  H04N19/91

Abstract: The present invention relates to a recording apparatus and a record medium for recording a data read time, a seek time, a successive reproduction time, a successive record length, and a correlation among data pieces. A recording apparatus of the present invention is a recoding apparatus for recording data to a rewritable record medium, comprising an encoding means for encoding the data corresponding to a predetermined compressing and encoding system, a converting means for converting a data structure of encoded data that is output from the encoding means into a file structure that a computer software program that synchronously reproduces a moving picture and so forth can handle without need to use a special hardware device, and a recording means for recording data having the file structure to the record medium, wherein the file structure has a first data unit, a second data unit, and a data portion, the second data unit being a set of a plurality of first data units, the data portion describing management information, wherein the plurality of second data units is correlated with a successive record length of the record medium, and wherein the data portion contains a time length and a data length of the second data unit recorded in the successive record length.

公开(公告)号：AU785441B2

公开(公告)日：2007-06-14

申请号：AU6360301

申请日：2001-08-23

Applicant: SONY CORP

Inventor： YAMADA MAKOTO ,  UKAI NOBUMITSU ,  SATO JUNICHI ,  KAWAI SHIGEYUKI ,  OKUDE TSUTOMU ,  ITO KOJI

IPC: G06F12/14 ,  G06F21/60 ,  G06F21/62 ,  G06K19/00 ,  G06K19/10 ,  G06Q10/00 ,  G06Q20/00 ,  G06Q20/06 ,  G06Q20/34 ,  G06Q30/04 ,  G06Q30/06 ,  G06Q40/00 ,  G06Q40/02 ,  G06Q50/00 ,  G06Q50/10 ,  G07F7/08