| Patent Number |
Title Of Patent |
Date Issued |
| 5612938 |
Correcting recorded marks and land lengths taken from an optical disk |
March 18, 1997 |
| Method for correcting the length of marks and lands representing information taken from an optical disk is disclosed. The method includes digitizing amplified analog data having marks and lands played back from an optical disk and providing a data synchronization clock by using a pha |
| 5508985 |
Method for detecting and processing synchronization marks extracted from a prerecorded wobbled g |
April 16, 1996 |
| A method for detecting and processing synchronization marks extracted from a prerecorded wobbled groove formed in a compact disk in order to produce pseudo-sync signals using a high frequency phase locked loop servoing to the disk speed to generate the signals. |
| 5506824 |
Frequency modulation to biphase data conversion for writable CD ATIP data |
April 9, 1996 |
| A method for detecting and processing ATIP information extracted from a prerecorded wobbled groove formed in a compact disk is disclosed. The prerecorded wobbled groove has a plurality of blocks of information. The method includes extracting an FM signal from the wobbled groove and p |
| 5363360 |
Method and apparatus for detecting and processing synchronization marks extracted from a prereco |
November 8, 1994 |
| A method and apparatus for detecting and processing synchronization marks extracted from a prerecorded wobbled groove formed in a compact disk in order to produce pseudo-sync signals. The method comprises the steps of: i) extracting an FM signal from the wobbled groove and converting suc |
| 4811317 |
Clock resynchronization after a track jump |
March 7, 1989 |
| In an information-bearing disk having, along concentric record tracks, pre-written equally spaced tracking pads which may or may not be aligned radially from one track to another, circuitry serves for improving the response time of a disk drive mechanism during a track-jump operation, |
| 4752841 |
Address mark encoding for a record storage medium |
June 21, 1988 |
| An information-bearing record medium (magnetic tape, disk, or an equivalent thereof) includes a stream of binary bits in which a binary 1 bit is normally represented by a signal transition at the middle of its corresponding bit cell and a binary 0 bit is normally represented by a sig |
