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公开(公告)号：DE69514630T2
公开(公告)日：2000-05-31
申请号：DE69514630
申请日：1995-11-29
Applicant: SONY CORP
Inventor： KAWAMURA MAKOTO , AKIYAMA YOSHIYUKI , FUJINAMI YASUSHI , YONEMITSU JUN , NAKAGAWA TOMIHIRO
Abstract: High-speed access to a multi-layered disk is to be realized. Each layer on a multi-layered disk may include an inside guard area 2, program area 3, and outer guard area 5 which are located in uniform radial positions in all layers. The uppermost layer has the recording direction from the inner side to the outer side of the disk, and the next layer has the recording direction from the outer side to the inner side of the disk such that opposite recording directions appear alternately. The radial position of the recording terminal end on the uppermost first layer may coincide with the radial position of the start of record on the next second layer. Recording and/or playback apparatus for such recording media is also provided.
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公开(公告)号：DE69326729D1
公开(公告)日：1999-11-18
申请号：DE69326729
申请日：1993-08-09
Applicant: SONY CORP
Inventor： NITTA HAJIME , SAITO TAKEHIKO , YAMASHITA KEITARO , TAKASHIMA MASATOSHI , NAKAGAWA TOMIHIRO
IPC: G11B20/00 , G11B20/10 , G11B27/034 , G11B27/32 , G11B27/34 , H04N5/765 , H04N5/85 , H04N5/926 , H04N7/50
Abstract: In step S1, the capacity of the area (remaining quantity) of a disk in which information can be recorded is read, and the remaining quantity is displayed in step S2. After a user input the recording time of information to be recorded and the recording capacity w for the recording, an average transmission rate R1 is calculated from expression R1 = w/t - alpha in step S4. The rate alpha is the transmission rate for transmitting signals other than a video signal, such as an audio signal, attached to the video signal. Data obtained by applying a DCT treatment to the video data is quantized with a quantization width corresponding to the average transmission rate R1 and this data is intermittently recorded on the disk.
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公开(公告)号：BR9600281A
公开(公告)日：1997-12-23
申请号：BR9600281
申请日：1996-01-31
Applicant: SONY CORP
Inventor： KAWAMURA MAKOTO , FUJINAMI YASUSHI , YONEMITSU JUN , NAKAGAWA TOMIHIRO
Abstract: Encoded data is reversely reproduced by decoding each picture only once and using only as many frame memory sections as are needed in a normal playback operation. A picture header detector (34) detects a picture header from data read out from a video code buffer (10) to identify the type of picture. The picture type information controls a picture data selecting circuit (35) for selecting frames of I and P pictures equal in number to the number of frame memory sections in a frame memory bank (16). The selected frames are supplied to an inverse VLC circuit (11) to be decoded, starting at the head of a GOP with an I picture. The decoded I and P pictures are stored in the frame memory bank (16) and transmitted to a display unit (18), starting with the temporally most recent picture and reading backward.
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公开(公告)号：DE69209870T2
公开(公告)日：1996-09-05
申请号：DE69209870
申请日：1992-02-24
Applicant: SONY CORP
Inventor： FUJII HIROSHI , NAKAGAWA TOMIHIRO
IPC: G11B23/087
Abstract: A tape cassette includes a first rib (25) projecting upwardly from a bottom wall (23) of a cassette case (2) at a position between a middle and one side of a tape drawing recess (7) formed on a front surface of the cassette case (2), the first rib (25) being disposed close to the rear surface of the tape (13) in the cassette. A second rib (30) projects from a back lid (17) so that, when the back lid (17) is rotated to reach an open position, the second rib (30) is kept in contact or proximity to an upper end of the first rib (25). When the back lid (17) is in the open position, the second rib (30) is disposed in contact or proximity to the upper end of the first rib (25), thereby avoiding any gap between the first rib (25) and the second rib (30). Accordingly, even when a part of the tape (13) is lifted by the back lid (17) in a lid opening operation, there is no possibility of the tape (13) passing to the rear side of the first rib (25), thereby preventing risk of tape jamming and damage to a tape player.
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公开(公告)号：DE69108593D1
公开(公告)日：1995-05-11
申请号：DE69108593
申请日：1991-04-05
Applicant: SONY CORP
Inventor： NAKAGAWA TOMIHIRO
IPC: G11B23/087
Abstract: A tape cassette includes a plurality of projections (23) on a slide surface of a cassette case (1), on which slide surface a reel lock member (11) can slide. The reel lock member (11) can slide on the projections (23) in contact relationship therewith so that smooth sliding movement of the reel lock member (11) is not prevented by a burr generated at the periphery of a hole (21) formed through the slide surface or a burr-like projection generated at the periphery of a contact position (24) formed by engagement of an ejector pin with the slide surface during moulding of the cassette case.
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Patent Agency Ranking
公开(公告)号：DE3883115D1
公开(公告)日：1993-09-16
申请号：DE3883115
申请日：1988-09-08
Applicant: SONY CORP
Inventor： KUBOTA YUKIO , NAKAGAWA TOMIHIRO , SHINDO NORIO , SENSHU YOICHIROU , UETAKE AKIHIRO
Abstract: An apparatus for recording an information signal that includes a signal processor for processing an information signal to be magnetically recorded, n magnetic heads (2A, 2B; 3A, 3B) (n is an integer of 2 or more) provided on a rotating drum (4) with a step of about 1/n the width of a magnetic tape (1) and a distributing circuit (6-13) for selectively supplying the processed information signal to one or more than two of the n magnetic heads, wherein the processed information signal is recorded on one or more than two track areas of the magnetic tape (1) by the magnetic head. Thus, much data can be recorded at a high transmission rate to improve the quality of picture, and also, a high access speed can be achieved.
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公开(公告)号：CA1200597A
公开(公告)日：1986-02-11
申请号：CA383997
申请日：1981-08-17
Applicant: SONY CORP
Inventor： AMARI SHINJI , NAKAGAWA TOMIHIRO
Abstract: A video signal recording apparatus for recording, a video signal on a magnetic tape includes an oscillator which generates an oscillation signal; a variable frequency divider for frequency dividing the oscillation signal; a control circuit for controlling the frequency-dividing ratio of the variable frequency divider in accordance with the speed of advancement of the magnetic tape during the recording operatior; a frequency divider for generating a plurality of synchronizing signals in response to the output of the variable frequency divider; a camera including an image transducer from which the video signal is obtained in correspondence to incident light from an object image projected on the image transducer, and a transmission device for transmitting the signal from the image transducer at a rate determined by the synchronizing signals; and a recording section including a processing circuit for separately processing the luminance and chrominance components of the transmitted video signal, and at least one transducer for recording the processed video signal on the magnetic tape in response to the synchronizing signals, wherein the video signal is always recorded on the magnetic tape in the same format regardless of the speed of advancement of the magnetic tape during the recording operation.
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18.发明专利
公开(公告)号：AU780800B2
公开(公告)日：2005-04-21
申请号：AU2262402
申请日：2001-12-12
Applicant: SONY CORP
Inventor： SAKO YOICHIRO , KIHARA TAKASHI , NAKAGAWA TOMIHIRO , INOKUCHI TATSUYA
IPC: G11B7/007 , G11B7/242 , G11B7/253 , G11B7/258 , G11B7/26 , G11B20/00 , G11B20/10 , G11B20/12 , G11B20/14 , G11B27/034 , G11B27/30 , H03M5/00 , H03M13/00 , G11B7/0045 , G11B7/24
Abstract: The present invention provides an optical disc recording method of irradiating an optical beam to an optical disc including a basal plate made of synthetic resin which has a concavo-convex pattern formed in advance on one surface thereof, and a reflective coat made of metal which is formed over the concavo-convex pattern on the basal plate, to physically change the concavo-convex pattern so as to record identification data.
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公开(公告)号：DE69520308T2
公开(公告)日：2001-09-27
申请号：DE69520308
申请日：1995-06-29
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO , IMAIZUMI SAKAE , TEJIMA KEISUKE , NAKAGAWA TOMIHIRO
IPC: G11B23/03
Abstract: A disc cartridge having a disc-shaped recording medium, such as an optical disc or a magneto-optical disc, rotatably housed within a main cartridge body. The disc cartridge has a main cartridge body made up of an upper cartridge half and a lower cartridge half, and a disc-shaped recording medium rotatably accommodated within the main cartridge body. A recording and/or reproducing aperture is formed in at least one of major surfaces of the main cartridge body. A shutter is mounted for movement along a sidewall section of the main cartridge body between a position closing the aperture and a position opening the aperture. There is provided an inclined portion in the aperture inclined with respect to the inserting direction of the disc cartridge.
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公开(公告)号：DE69520308D1
公开(公告)日：2001-04-19
申请号：DE69520308
申请日：1995-06-29
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO , IMAIZUMI SAKAE , TEJIMA KEISUKE , NAKAGAWA TOMIHIRO
IPC: G11B23/03
Abstract: A disc cartridge having a disc-shaped recording medium, such as an optical disc or a magneto-optical disc, rotatably housed within a main cartridge body. The disc cartridge has a main cartridge body made up of an upper cartridge half and a lower cartridge half, and a disc-shaped recording medium rotatably accommodated within the main cartridge body. A recording and/or reproducing aperture is formed in at least one of major surfaces of the main cartridge body. A shutter is mounted for movement along a sidewall section of the main cartridge body between a position closing the aperture and a position opening the aperture. There is provided an inclined portion in the aperture inclined with respect to the inserting direction of the disc cartridge.
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