公开(公告)号：CA2333849A1

公开(公告)日：2001-08-04

申请号：CA2333849

申请日：2001-02-01

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  KUSUI YOSHIO ,  NETSU NAOHIRO

IPC: G11B23/28 ,  G11B17/04 ,  G11B17/046 ,  G11B19/12 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04

Abstract: There is obtained a disk cartridge apparatus in which when a plurality of disk cartridges which are different in size and thickness are loaded an a drive device, the heights of respective switch detection surfaces of disk cartridges can be horizontally aligned with a mode detection switch of the drive device. A disk cartridge apparatus comprises disk cartridges (1) (12) stored within cartridge housings different in size and thickness in which disks having different diameters are stored, mis-erase prevention plugs (44) (49) including mis-erase prevention detection holes (45) (50) having switch detection surfaces (46) (51) on the disk cartridges (1) (12), a cassette compartment (23) including a recording and reproducing portion for loading the disk cartridge (1) {12) to record and/or reproduce the disk, a detection switch (47) (52) disposed on the cassette compartment (23) to detect the mis-erase prevention detection holes (45) (50) and a position reference portion for determining the positions and heights of the disk cartridges on the cassette compartment (23), wherein when the disk cartridge (1) (12) is loaded on the cassette compartment (23), the heights of the respective switch detection surfaces (46) (51) of the disk cartridges can be horizontally aligned with the detection switches (47) (52).

公开(公告)号：CA2325302A1

公开(公告)日：2001-05-12

申请号：CA2325302

申请日：2000-11-10

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  NETSU NAOHIRO ,  KUSUI YOSHIO

IPC: G11B17/046 ,  G11B17/02 ,  G11B17/04 ,  G11B17/043 ,  G11B23/03

Abstract: A disk cartridge device capable of selectively positioning and mounting a plurality of kinds of disk. cartridges having different sizes onto a recording and reproducing device without troubles. First and second disk cartridges including disks having different disk diameters each stored in cartridge housings having different sizes, a cassette compartment for selectively mounting the first and second disk cartridges, a pair of positioning pins having bases for determining the height for positioning the first disk cartridge onto the cassette compartment, a pair of positioning pins having bases for determining the height for positioning the second disk cartridge, and pairs of positioning holes and on one surface of the first and second disk cartridges, respectively, are provided, wherein the position of the positioning holes of the second disk cartridge is disposed outside the disk circumference of the first disk cartridge.

公开(公告)号：CA2310706A1

公开(公告)日：2000-12-22

申请号：CA2310706

申请日：2000-06-06

Applicant: SONY CORP

Inventor： AOKI YOSHITAKA ,  MAEDA YASUAKI ,  KAERIYAMA TAKUYA ,  NETSU NAOHIRO ,  WATANABE TETSU ,  FUJIIE KAZUHIKO

IPC: G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00 ,  G11B23/03 ,  G11B7/0037

Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

公开(公告)号：MY138037A

公开(公告)日：2009-04-30

申请号：MYPI20051614

申请日：2000-05-31

Applicant: SONY CORP

Inventor： NETSU NAOHIRO ,  AOKI YOSHITAKA ,  WATANABE TETSU ,  FUJIIE KAZUHIKO ,  MAEDA YASUAKI ,  KAERIYAMA TAKUYA

IPC: G11B7/007 ,  G11B7/013 ,  G11B7/24 ,  G11B7/26 ,  G11B11/105 ,  G11B23/00 ,  G11B23/03

Abstract: AN OPTICAL RECORDING MEDIUM IS PROVIDED WHICH HAS A SUBSTRATE (2) AND A SIGNAL RECORDING LAYER (21) PROVIDED ON THE SUBSTRATE (2) AND IN WHICH AN INFORMATION SIGNAL IS RECORDED IN THE FORM OF MICROSCOPIC PITS . A LIGHT BEAM IS FOCUSED ON THE SIGNAL RECORDING LAYER (21) AND SOME CHANGE OF THE LIGHT BEAM CARRIED BY A RETURN LIGHT FROM THE SIGNAL RECORDING LAYER (21) IS DETECTED TO READ THE INFORMATION SIGNAL RECORDED ON THE SIGNAL RECORDING LAYER. THE OPTICAL RECORDING MEDIUM HAS A DIAMETER OF 65 MM OR LESS AND A THICKNESS OF 0.4 TO 0.70 MM . AN INFORMATION SIGNAL RECORDING AREA EXTENDS OUTWARDLY FROM A RADIAL POSITION OF 12.5 MM OR LESS FROM THE CENTER OF THE MEDIUM . THE RATIO IN AREA BETWEEN THE INFORMATION SIGNAL RECORDING AREA AND NON-SIGNAL RECORDING AREA IS 3.4 OR MORE . THE STORAGE CAPACITY OF THIS MEDIUM IS 2 GIGABYTES OR MORE . THE OPTICAL RECORDING MEDIUM HAS FORMED AT THE CENTER THEREOF A CENTER HOLE (3) AROUND WHICH AN ANNULAR TABLE-ABUTMENT (4) CONVEXING TO ONE SIDE OF THE MEDIUM IS FORMED . A MAGNETIC-CLAMPING HUB (5) IS INSTALLED IN THE CENTER HOLE (3) AND THUS THE MEDIUM IS MAGNETICALLY CLAMPED TO A ROTATION DRIVING MECHANISM (11) OF AN OPTICAL RECORDING AND/OR REPRODUCING APPARATUS . THE COMPACTNESS AND HIGH DENSITY OF RECORDING OF THE OPTICAL RECORDING MEDIUM WILL CONTRIBUTE GREATLY TO A FURTHER COMPACT STRUCTURE OF A RECORDING AND/OR REPRODUCING APPARATUS IN WHICH THE MEDIUM IS TO BE USED .

公开(公告)号：HK1043238B

公开(公告)日：2005-11-11

申请号：HK02102875

申请日：2002-04-16

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  KUSUI YOSHIO ,  NETSU NAOHIRO

IPC: G11B20060101 ,  G11B23/28 ,  G11B17/04 ,  G11B17/046 ,  G11B19/12 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04

公开(公告)号：DE60101692D1

公开(公告)日：2004-02-12

申请号：DE60101692

申请日：2001-01-31

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  KUSUI YOSHIO ,  NETSU NAOHIRO

IPC: G11B23/28 ,  G11B17/04 ,  G11B17/046 ,  G11B19/12 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04

Abstract: There is obtained a disk cartridge apparatus in which when a plurality of disk cartridges which are different in size and thickness are loaded on a drive device, the heights of respective switch detection surfaces of disk cartridges can be horizontally aligned with a mode detection switch of the drive device. A disk cartridge apparatus comprises disk cartridges (1) (12) stored within cartridge housings different in size and thickness in which disks having different diameters are stored, mis-erase prevention plugs (44) (49) including mis-erase prevention detection holes (45) (50) having switch detection surfaces (46) (51) on the disk cartridges (1) (12), a cassette compartment (23) including a recording and reproducing portion for loading the disk cartridge (1) (12) to record and/or reproduce the disk, a detection switch (47) (52) disposed on the cassette compartment (23) to detect the mis-erase prevention detection holes (45) (50) and a position reference portion for determining the positions and heights of the disk cartridges on the cassette compartment (23), wherein when the disk cartridge (1) (12) is loaded on the cassette compartment (23), the heights of the respective switch detection surfaces (46) (51) of the disk cartridges can be horizontally aligned with the detection switches (47) (52).

公开(公告)号：CA2338128A1

公开(公告)日：2001-09-02

申请号：CA2338128

申请日：2001-02-26

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  KUSUI YOSHIO ,  NETSU NAOHIRO

IPC: G11B23/28 ,  G11B17/02 ,  G11B23/03

Abstract: There are obtained a disk cartridge apparatus and a disk cartridge in which a disk cartridge having a different format is made unable to be inserted into a drive apparatus from a mechanism standpoint so that a user can instantly recognize that the disk cartridge having the different format has been inserted into the drive apparatus by mistake. A disk cartridge apparatus and a disk cartridge include a first disk cartridge and a second disk cartridge having cartridge housings of the same shape to store therein disks of the system that can be recorded and read by light of red laser beams and light of blue laser beams. When the first disk cartridge is inserted into a first drive apparatus 19, a discriminating groove of the first disk cartridge becomes identical to a discriminating convex portion 20 of the first drive apparatus 19 to enable the first disk cartridge to be loaded on the first drive apparatus. When a disk cartridge 21 of a different kind is inserted into the first drive apparatus 19, the discriminating convex portion 20 and a discriminating groove 24 of the disk cartridge 21 of different kind become nonidentical to each other to inhibit the disk cartridge of the different kind from being loaded on the first drive apparatus.

公开(公告)号：AU1668901A

公开(公告)日：2001-08-09

申请号：AU1668901

申请日：2001-01-29

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  KUSUI YOSHIO ,  NETSU NAOHIRO

IPC: G11B23/28 ,  G11B17/04 ,  G11B17/046 ,  G11B19/12 ,  G11B19/20 ,  G11B23/03 ,  G11B25/04 ,  G11B19/04

Abstract: There is obtained a disk cartridge apparatus in which when a plurality of disk cartridges which are different in size and thickness are loaded on a drive device, the heights of respective switch detection surfaces of disk cartridges can be horizontally aligned with a mode detection switch of the drive device. A disk cartridge apparatus comprises disk cartridges (1) (12) stored within cartridge housings different in size and thickness in which disks having different diameters are stored, mis-erase prevention plugs (44) (49) including mis-erase prevention detection holes (45) (50) having switch detection surfaces (46) (51) on the disk cartridges (1) (12), a cassette compartment (23) including a recording and reproducing portion for loading the disk cartridge (1) (12) to record and/or reproduce the disk, a detection switch (47) (52) disposed on the cassette compartment (23) to detect the mis-erase prevention detection holes (45) (50) and a position reference portion for determining the positions and heights of the disk cartridges on the cassette compartment (23), wherein when the disk cartridge (1) (12) is loaded on the cassette compartment (23), the heights of the respective switch detection surfaces (46) (51) of the disk cartridges can be horizontally aligned with the detection switches (47) (52).

公开(公告)号：AU7147000A

公开(公告)日：2001-05-17

申请号：AU7147000

申请日：2000-11-09

Applicant: SONY CORP

Inventor： SANADA YOTARO ,  NETSU NAOHIRO ,  KUSUI YOSHIO

IPC: G11B17/046 ,  G11B17/02 ,  G11B17/04 ,  G11B17/043 ,  G11B17/03 ,  G11B23/03 ,  G11B17/038 ,  G11B25/04

Abstract: A disk cartridge device capable of selectively positioning and mounting a plurality of kinds of disk cartridges having different sizes onto a recording and reproducing device without troubles. First and second (12) disk cartridges including disks having different disk diameters each stored in cartridge housings having different sizes, a cassette compartment (25) for selectively mounting the first and second disk cartridges, a pair of positioning pins (28, 29) having bases (26, 27) for determining the height for positioning the first disk cartridge onto the cassette compartment, a pair of positioning pins (32, 33) having bases (30, 31) for determining the height for positioning the second disk cartridge (12), and pairs of positioning holes (20, 21) and on one surface of the first and second disk cartridges, respectively, are provided, wherein the position of the positioning holes (20, 21) of the second disk cartridge (12) is disposed outside the disk (5) circumference of the first disk cartridge.

公开(公告)号：AU7146900A

公开(公告)日：2001-05-17

申请号：AU7146900

申请日：2000-11-09

Applicant: SONY CORP

Inventor： YOTARO SANADA ,  NETSU NAOHIRO ,  KUSUI YOSHIO

IPC: G11B23/03 ,  G11B17/02 ,  G11B17/04 ,  G11B17/03 ,  G11B17/038 ,  G11B25/04

Abstract: A disk cartridge device by which a plurality of kinds of disk cartridges of different sizes can be selectively located at respective desired positions of height and thereby loaded onto a single recording and reproducing device. A disk cartridge device includes first (1) and second disk cartridges of different sizes for housing therein disks (5) of different disk diameters and a cassette compartment (25) onto which the first and second disk cartridges are selectively loaded, the cassette compartment including a pair of positioning pins (28, 29) having height- deciding bases (26, 27) for properly placing the first disk cartridge (1) and a pair of positioning pins (32, 33) having height-deciding bases (30, 31) for properly placing the second disk cartridge, wherein the first disk cartridge has stepped escape holes (40, 41) formed on its lower surface to enable itself to escape from the positioning pins (32, 33) by which the second disk cartridge is properly positioned in the loading state when positioning holes (9, 10) of the first disk cartridge are properly fitted into positioning pins (28, 29) and the height is properly decided.