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71. 发明专利

JP2001179780A METHOD AND MACHINE FOR INJECTION MOLDING 失效
公开(公告)号：JP2001179780A
公开(公告)日：2001-07-03
申请号：JP36450399
申请日：1999-12-22
申请人： TOYO MACHINERY & METAL , SONY DISC TECHNOLOGY INC
发明人： TANIGUCHI YOSHIYA , HARA YOSHIAKI
IPC分类号： B29C45/26 , B29C45/27 , B29C45/28 , B29C45/38 , B29C45/56 , B29C45/73 , B29C45/77 , B29C45/78
摘要： PROBLEM TO BE SOLVED: To mold a precise molding in need of special quality with the use of a milti-cavity mold. SOLUTION: The temperatures of resins 25a, 25b injection-packed in cavities 5a, 5b formed in molds 1a, 1b are measured immediately before gates 21a, 21b by temperature sensors 23a, 23b set in the cavities 5a, 5b respectively. Corresponding to the individual temperatures/temperature difference of/between the resins 25a, 25b, a servo-motor is driven, gate cut pins 16a, 16b inserted into the cavities 5a, 5b are moved to/from the gates 21a, 21b, and the distances Δta, Δtb between the gates 21a, 21b and the pins 16a, 16b are adjusted so that the amount of the resin to be packed in each cavity 5a, 5b is adjusted.

72. 发明专利

JP2001093193A OPTICAL DISC 失效
公开(公告)号：JP2001093193A
公开(公告)日：2001-04-06
申请号：JP26763299
申请日：1999-09-21
申请人： SONY DISC TECHNOLOGY INC
发明人： HIRAYAMA NOBUYUKI , MORIO TOMOYUKI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide an optical disc manufacturable by molding two disc substrates by using the same molding die and sticking them to each other. SOLUTION: The first disc substrate 101 is molded so that a first projecting part 104a having prescribed height H is formed on the side of one end face 101a being an incident plane of a laser beam and a first recessed part 105a having prescribed depth D is formed at the position corresponding to that of the part 104a on the other end face 101b side. The second disc substrate 102 is molded to have almost the same shape as the substrate 101 has, namely a second projecting part 104b on one end face side and a second recessed part 105b on the other end face side. The molded first and second disc substrates 101 and 102 are stuck to one other.

73. 发明专利

JP2001079852A MOLDING APPARATUS 失效
公开(公告)号：JP2001079852A
公开(公告)日：2001-03-27
申请号：JP26376999
申请日：1999-09-17
申请人： SONY DISC TECHNOLOGY INC
发明人： FUKUCHI YOSHIJI
IPC分类号： B29C33/22 , B29C45/17 , B29C45/64
摘要： PROBLEM TO BE SOLVED: To provide a molding apparatus which can mold a precision molding. SOLUTION: A first magnet 263a arranged in the lower part of a movable side platen 23 and a second magnet 263b which is arranged in the upper part of a base 21 so that the poles of same polarity of the magnets 263a, 263b face each other are provided. The platen 23 is moved while repulsion is generated between the magnets.

74. 发明专利

JP2001023308A DEVICE FOR SHAPING SIGNAL WAVEFORM 失效
公开(公告)号：JP2001023308A
公开(公告)日：2001-01-26
申请号：JP19197999
申请日：1999-07-06
申请人： SONY DISC TECHNOLOGY INC
发明人： AIDA KIRI , SAITO AKINARI
IPC分类号： G11B20/10 , G11B7/00 , G11B7/005
摘要： PROBLEM TO BE SOLVED: To generate shaping data with the precision of a repetition period in a reference clock signal in a device for shaping a signal waveform. SOLUTION: This device shapes a 14-bit encoded signal waveform, which is obtained by modulating an 8-bit encoded signal 23 into a 14-bit encoded signal 24 synchronizing with a frequency divided clock signal 13 obtained by frequency division a reference clock signal 37 by an integer. The device consists of a pattern detecting means 33 for detecting the signal pattern of the 14-bit encoded signal synchronizing with the frequency divided clock signal 13, and of a pattern shaping data generating means 34 for generating shaping data 40 of the signal pattern corresponding to the signal pattern of the 14-bit encoded signal 24 with the repetition period precision of the reference clock signal 37 so that the pattern shaping data 40 is generated by the precision of the repetition period of the reference clock signal 37.

75. 发明专利

JP2001006218A OPTICAL RECORDING MEDIUM AND MANUFACTURING METHOD OF THE SAME 失效
公开(公告)号：JP2001006218A
公开(公告)日：2001-01-12
申请号：JP17574199
申请日：1999-06-22
申请人： SONY DISC TECHNOLOGY INC
发明人： YOSHIMURA YOSHINORI
IPC分类号： G11B7/24
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical recording medium capable of uniformizing hardening of an adhesive. SOLUTION: In this manufacturing method, first a substrate 8 is formed. A signal pit and a dummy pit are formed respectively in regions corresponding to a signal area 2 and a blank area 3 respectively of a surface as a signal surface 8b of the substrate 8. Then a substrate 12 is molded by an injection molding method and the like. At this time, a dummy signal pit and a dummy pit are formed respectively in regions corresponding to a dummy signal area 6 and a blank area 7 respectively of a surface as a dummy signal surface 12b of the substrate 12. Then, a reflecting film 9 and 10 are formed respectively on the signal surface 8b of the substrate 8 and the dummy surface 12b of the substrate 12 respectively. Then the reflecting film 9 of the substrate 8 and the reflecting film 10 of the substrate 12 are made to face each other and an adhesive is held therebetween. Then a side of a reading surface 8a of the substrate 8 and a side of a label printing surface 12a are irradiated with an ultraviolet ray to harden the adhesive.

76. 发明专利

JP2000339859A SIGNAL TRANSMITTING DEVICE FOR MANUFACTURING MASTER MINI-DISK 失效
公开(公告)号：JP2000339859A
公开(公告)日：2000-12-08
申请号：JP14503999
申请日：1999-05-25
申请人： SONY DISC TECHNOLOGY INC
发明人： AIDA KIRI , SAKINO TOSHIHIKO
IPC分类号： G11B20/10 , G11B7/00 , G11B7/0045 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To manufacture a master mini-disk at low cost by eliminating the need for facilities and processes for manufacturing a master medium in which digital audio signals subjected to ATRAC(Adaptive Transform Acoustic Coating) compression are recorded, and eliminating the need for such a master medium itself. SOLUTION: A digital audio signal subjected to the ATRAC compression is once maintained in dual port memory 15, and the digital audio signal read from the dual port memory 15 is coded and modulated. Therefore, if the speed, at which the digital audio signal is read from the dual port memory 15, is constant, the digital audio signal, which has been ATRAC-compressed, encoded and modulated, is continuously transmitted at a fixed speed without being interrupted, and the master mini-disc can be manufactured while inputting the digital audio signal of a non-compressed form.

77. 发明专利

JP2000339825A MASTER MEDIUM FOR MANUFACTURING ORIGINAL DISK OF MINI- DISK AND SIGNAL TRANSMITTER 失效
公开(公告)号：JP2000339825A
公开(公告)日：2000-12-08
申请号：JP15406899
申请日：1999-06-01
申请人： SONY DISC TECHNOLOGY INC
发明人： USUI YOSHINOBU , SAKINO TOSHIHIKO
IPC分类号： G11B20/10 , G11B7/26 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To enable manufacturing an original disk of a mini-disk for a short time and to enable manufacturing it with a low cost. SOLUTION: A digital voice signal in which ATRAC(attractive transform acoustic coding) compression is performed and which is stored in a compact disk recordable 21 is read by a compact disk reading device 23, a form of the read digital voice signal is converted by a central processing unit 24, and a EFM(eight to fourteen modulation) modulating device 18 modulates the digital voice signal whose form is converted. The compact disk recordable 21 is more inexpensive than a U-matic-tape, and the compact disk reading device 23 can read the digital voice signal at faster speed than reproducing speed of a voice.

78. 发明专利

JPH10334520A DISK STICKING METHOD 失效
公开(公告)号：JPH10334520A
公开(公告)日：1998-12-18
申请号：JP13889897
申请日：1997-05-28
申请人： SONY DISC TECHNOLOGY INC
发明人： MIYAKE RYOHEI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide a disk sticking method capable of reducing the number of sticking processes of disks and also capable of enhancing the quality of a stuck disk. SOLUTION: In this sticking method, at the time of sticking two sheets of disks 1A, 1B, the disks 1A, 1B are opposed and centers of the disks are clamped and one part of the periphery of the disks is separated and sticking agent 2 is infiltrated in between the disks by moving the separated part while rotating the disks and while pouring the sticking agent 2 in between them from the separated part.

79. 发明专利

JPH10302410A MODULATION SIGNAL INSPECTION DEVICE OF MASTER DISK FOR OPTICAL DISK 失效
公开(公告)号：JPH10302410A
公开(公告)日：1998-11-13
申请号：JP11111597
申请日：1997-04-28
申请人： SONY DISC TECHNOLOGY INC
发明人： SATO ATSUSHI
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/26 , G11B20/18
摘要： PROBLEM TO BE SOLVED: To enable a true-false test on a text data of a modulation signal in real time at the time of recording the modulation signal of an information signal on the master disk of the optical disk by means of light. SOLUTION: The device 10 is equipped with a recording time text data processing part 30 for decoding a text data TD1 of the modulation signal in real time at the time of recording the modulation signal of the information signal on the master disk of the optical disk by light and a comparing text data sending part 40 for giving a prepared comparing text data TD2 before encoding. Then, the text data D1 decoded at the time of recording from the recording time text data processing part 30 is compared with the text data TD2 before encoding sent from the comparing text data sending part 40 to judge true or false of the text data at the time of recording in real time.

80. 发明专利

JPH10241245A CLAMP DEVICE FOR INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH10241245A
公开(公告)日：1998-09-11
申请号：JP3775097
申请日：1997-02-21
申请人： SONY DISC TECHNOLOGY INC
发明人： FUKAGAWA HIROSHI
IPC分类号： G11B17/028
摘要： PROBLEM TO BE SOLVED: To reduce the quantity of eccentricity between an output shaft and the information recording medium and moreover to prevent a slip at the time of rotating the information recording medium. SOLUTION: A supporting body 11 for the information recording medium 9 is fixed to the output shaft 18 of a drive means M, and a receiving member 10 for the information recording medium 9, having a slant part 11c to be abutted against a part forming a center hole in the information recording medium 9 is supported by an energizing means 13 and is slidably provided on the output shaft 18 of the drive means M, so as to support a 1st surface F1 of the information recording medium 9. By magnetically attracting the receiving member 10 by a clamp magnet 8 of an assembly 95, the receiving member 10 is slid on the output shaft 18 against force of the energizing means 13 to clamp the information recording medium 9 on the receiving member 10, and also the part 9b forming the center hole 9a of the information recording medium 9 is supported on the slant part 11c of the supporting body 11.

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