# US 6,288,989 B1 · Information recording method with protection function of previously recorded information

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- Number: US 6,288,989 B1
- Document ID: US6288989B1
- Status: Granted
- Kind: B1
- Application number: 08/757,823
- Filed: 1996-11-27
- Granted: 2001-09-11
- Earliest claimed: 1996-11-02
- Assignees: LG Electronics Inc.
- Inventors: Jin Tae Ro; Dong Cheol Kang; Jae Hyoung Lee; Tae Joon Park; Kang Soo Seo
- Web page: https://patentgrep.com/patent/US6288989B1

## CPC

- G11B 27/36: Monitoring, i.e. supervising the progress of recording or reproducing {(for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06)}
- G11B 19/04: Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
- G11B 27/036: Insert-editing
- G11B 27/329: {on a disc [VTOC]}
- G11B 27/34: Indicating arrangements {(indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D)}
- G11B 27/034: on discs (G11B27/036, G11B27/038 take precedence)
- G11B 2220/20: Disc-shaped record carriers
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

An information recording method which can record audio and/or video information on a recording medium, while protecting previously recorded information from being overwritten. When recording new information on the record medium, the information recording method checks whether an intended recording position for new information corresponds to a start position of a previously recorded information region. If so, the method moves the recording position of new information into a recording termination position of the previously recorded information region.

## Claims

### Claim 1

A method of recording data on an optical disc, comprising:
receiving a request to record new data on the optical disc;
determining where on the optical disc the new data is to be recorded based on a priority level of any previously recorded data on the optical disc, said previously recorded data having more than two possible priority levels, the priority level being assigned by the user; and
recording the new data on the optical disc in accordance with the determination.

### Claim 2 (depends on 1)

The method of claim 1, further comprising a step of assigning more than two possible priority levels to the recorded new data.

### Claim 3 (depends on 2)

The method of claim 2, further comprising a step of assigning priority levels to the new data by recording mode flags and password data into a lead-in region of the optical disc.

### Claim 4 (depends on 2)

The method of claim 2, further comprising a step of assigning priority levels to the new data by recording overwrite priority data into a lead-in region of the optical disc.

### Claim 5

A method of recording data on an optical disc, comprising:
determining a priority level from more than two priority levels to be assigned to first data, the priority levels indicating portions of the first data to be overwritten;
determining locations on the optical disc where the first data are to be recorded;
recording the first data at the determined locations; and
assigning the priority levels to the first data, the priority levels being assigned by the user.

### Claim 6 (depends on 5)

The method of claim 5, wherein the step of assigning priority levels is achieved by recording mode flags and password data into a lead-in region of the optical disc.

### Claim 7 (depends on 5)

The method of claim 5, wherein the step of assigning priority levels is achieved by recording overwrite priority data into a lead-in region of the optical disc.

### Claim 8 (depends on 5)

The method of claim 5, further comprising a step of recording second data over the first data in accordance with the priority levels of the first data.

### Claim 9 (depends on 8)

The method of claim 8, further comprising the step of assigning more than two priority levels to the recorded second data.

### Claim 10

A method of overwriting data on an optical disc, comprising:
selectively recording first data at different portions of the optical disc;
assigning a priority from more than two levels of priority to each selectively recorded portion of first data, the priorities assigned by the user indicating portions of the first data to be overwritten by second data;
selectively recording second data over the recorded first data portions in accordance with the assigned priorities of the first data.

### Claim 11 (depends on 10)

The method of claim 10, further comprising a step of assigning a priority from more than two levels of priority to each selectively recorded portion of the second data.

### Claim 12 (depends on 10)

The method of claim 10, wherein the priorities of the selectively recorded portions of first data are changed after assignment.