| Patent Number |
Title Of Patent |
Date Issued |
| RE39163 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
July 11, 2006 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discriminati |
| RE38706 |
Recording defect substitution method of a disc-shaped recording medium, and a recording and repr |
February 22, 2005 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination |
| RE38611 |
Method for substituting defective recording of discoid recording medium and discoid recording me |
October 5, 2004 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination i |
| 7178088 |
Method and circuit for error correction, error correction encoding, data reproduction, or data r |
February 13, 2007 |
| Data is read from a recording medium and the reproduced data is deinterleaved and stored to a first memory while input/output to/from the first memory is arbitrated. It is determined whether a predetermined number of data units is stored to the first memory. Based on the result data, |
| 6678227 |
Simultaneous recording and reproduction apparatus and simultaneous multi-channel reproduction ap |
January 13, 2004 |
| When recording and reproduction are performed at the same time, if a system controller detects that an amount of data accumulated in a buffer memory exceeds a predetermined value, the system controller it stops data reading from an optical disk 109 temporarily and records data accumulate |
| 6567350 |
Method for adjusting control operation in an optical disc recording device |
May 20, 2003 |
| A control adjustment method for adjusting a control of a recording/reproduction apparatus for a disc-shaped recording medium is provided, wherein the control is adjusted in response to an environmental change inside the recording/reproduction apparatus, such as a temperature change, |
| 6549499 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
April 15, 2003 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination i |
| 6496455 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
December 17, 2002 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination i |
| 6351447 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
February 26, 2002 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination i |
| 6314078 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
November 6, 2001 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination |
| 6301220 |
Recording defect substitution method for a disc-shaped recording medium, and a recording and rep |
October 9, 2001 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination |
| 6175549 |
Recording defect substitution method of a disc-shaped recording medium, and a recording and repr |
January 16, 2001 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination |
| 6134214 |
Method for substituting defective recording of discoid recording medium and discoid recording me |
October 17, 2000 |
| In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium, whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination i |
| 5872767 |
Optical disk and an optical disk recording/reproduction device having address blocks located on |
February 16, 1999 |
| An optical disk according to the present invention includes a first track having a spiral shape and a second track having a spiral shape, the first track and the second track adjoining each other, and information being recorded on or reproduced from the first track and the second track. |
| 5862112 |
Optical disk and an optical disk recording reproduction device |
January 19, 1999 |
| An optical disk according to the present invention includes a first track having a spiral shape and a second track having a spiral shape, the first track and the second track adjoining each other, and information being recorded on or reproduced from the first track and the second track. |
| 5566350 |
Information device for providing fast data transfer with minimum overhead |
October 15, 1996 |
| An information device which ensures fast data transfer between a RAM and an I/O channel, between an I/O channel and another I/O channel, or between a RAM and another RAM: comprises address decoder circuit which allows the CPU to gain simultaneous access to both the RAM and the I/O channe |
| 5517484 |
Optical disk and optical disk recording and reproducing apparatus |
May 14, 1996 |
| A reproduction type optical disk having same sector structure as that of a recordable optical disk, can reproduce data even if a plurality of sectors are disabled from correction. The disk has data sectors for recording data, parity sectors obtained by a new error correction coding betwe |
| 5485439 |
Method for recording/reproducing information and apparatus therefor |
January 16, 1996 |
| A method and apparatus for recording/reproducing information on an optical disk using the UNIX operating system. The optical disk has a plurality of partitions. An open table is provided to prevent the removal of the optical disk when the optical disk device is in use. The open table |
| 5469418 |
Optical information write/read device and method for writing data |
November 21, 1995 |
| A write/read device includes two optical heads for writing data on an optical disk. The two heads are moved simultaneously after data is written in a track, the written data is read and checked for writing errors. This write verify is performed by the two optical heads in parallel, and d |
| 5457794 |
Information retrieval apparatus for searching target literature data from an information recordi |
October 10, 1995 |
| The present invention relates to an information retrieval apparatus for retrieving large quantities of the document files stored in the information recording medium by the successive matched comparison between the character string of a target and the character string in the coded doc |
| 5406534 |
Double-sided recordable optical disk suitable for a substituting process and a method for perfor |
April 11, 1995 |
| An optical disk apparatus for an optical disk having two sides for which data can be simultaneously recorded. Each of the two sides includes a spare area for alternative recording. In the optical disk apparatus, a series of data to be recorded is distributed into first data for the first |
| 5293566 |
Information recording and reproducing apparatus |
March 8, 1994 |
| An information recording and reproducing apparatus includes a rewritable optical disc having a plurality of sectors on which data can be rewritten. The rewritable optical disc is divided into an additionally recordable region in which the data are additionally recorded and a rewritable d |
| 5270877 |
Information recording medium and information recording and reproducing apparatus |
December 14, 1993 |
| A disk shaped information recording medium has a virtual ROM area where data sectors, and parity sectors are recorded, and a disk definition area where management data of a virtual ROM area is recorded in a rewritable user area information recording and reproducing apparatus fabricates t |
| 5253242 |
Double-sided optical disc player |
October 12, 1993 |
| A double-sided optical disc player which comprises first and second optical heads for radiating laser beams to tracks on respective sides of a double-sided optical disc; first and second ID read-out units for reading respective sector addresses out from associated sector identifiers; an |
| 5237553 |
Data recording and reproducing apparatus having a plurality of operating modes |
August 17, 1993 |
| In data recording medium used with the apparatus of the present invention, there are allocated a sequential access zone consisting of a data area for recording real time data such as sounds or video images, a C list area for recording a C defect list managing defective sectors detected i |
| 5214626 |
Information recording/reproducing apparatus for writing on and reading from a rewritable optical |
May 25, 1993 |
| An information recording/reproducing apparatus is suitable for writing on and reading from a rewritable optical disk signals having a time-based continuity attribute such as video signals and audio signals. The optical disk has a plurality of tracks each divided into sectors. The apparat |
| 5202876 |
Optical disc recording-reproducing apparatus in which sector substitution of defective sectors i |
April 13, 1993 |
| In a plurality of sectors in a track of an optical disc, when defect sectors having defect are a lesser number than a predetermined number, a substitution sector in a first substitution area of the optical disc is substituted for the defect sector, and when the number of the defect s |
| 5161143 |
Information recording-reproducing apparatus for optimizing data transfer |
November 3, 1992 |
| An information recording-reproducing apparatus for optimizing data transfer between a host computer and an information recording medium. The apparatus has a transfer mode control device which selects the optimal data transfer operation mode for transferring data between the host computer |
