# US 7,610,359 B2 · Method and apparatus for reproducing data recorded on an interactive recording medium in conjunction with associated auxiliary data recorded in multiple locations

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- Number: US 7,610,359 B2
- Document ID: US7610359B2
- Status: Granted
- Kind: B2
- Application number: 10/729,558
- Filed: 2003-12-04
- Published: 2004-07-08
- Granted: 2009-10-27
- Earliest claimed: 2002-12-07
- Assignees: LG Electronics Inc.
- Inventors: Woo Seong Yoon; Jee Yong Yoo; Tae Ho Kim; Byung Jin Kim
- Web page: https://patentgrep.com/patent/US7610359B2

## CPC

- G11B 27/105: {of operating discs}
- H04N 9/8205: {involving the multiplexing of an additional signal and the colour video signal}
- H04N 21/42646: {for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM}
- H04N 21/858: Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
- G11B 2220/2562: DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
- H04N 5/85: on discs or drums
- 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)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A method for reproducing data recorded on an interactive recording medium in conjunction with associated auxiliary data is disclosed. An interactive recording medium reproducing apparatus reproduces A/V data recorded on an interactive recording medium such as an interactive DVD in conjunction with contents data provided by a contents providing server using navigation information for the contents data also provided by the contents providing server, thereby allowing synchronized reproduction of data from different sources.

## Claims

### Claim 1

A method for reproducing A/V data recorded on an interactive recording medium, comprising the steps of:
receiving playback control information for the A/V data from a contents providing server and storing the received playback control information in a buffer memory, the playback control information including a presentation time associated with additional contents data, the received playback control information being stored in one area among at least two areas of the buffer memory which is divided into at least two areas logically, wherein the additional contents data is associated with the A/V data and is provided from the contents providing server; and
presenting the A/V data reproduced from the interactive recording medium in conjunction with the additional contents data received from the contents providing server using the stored playback control information.

### Claim 2 (depends on 1)

The method set forth in claim 1, wherein the additional contents data is organized into a plurality of data files.

### Claim 3 (depends on 1)

The method set forth in claim 1, wherein the playback control information is provided all at once by the contents providing server or is divided into multiple pieces and provided one by one when needed by the contents providing server.

### Claim 4 (depends on 1)

The method set forth in claim 1, wherein the playback control information includes access information for data files of the additional contents data to be reproduced in conjunction with some intervals of the A/V data.

### Claim 5 (depends on 4)

The method set forth in claim 4, wherein the playback control information further includes information on the size of data files of additional contents data that will be received next.

### Claim 6 (depends on 4)

The method set forth in claim 4, wherein the access information for data files of the additional contents data is file names of the data files or addresses of the places in which the data files are stored.

### Claim 7 (depends on 4)

The method set forth in claim 4, wherein the presenting step further includes the step of sending a request to the contents providing server for requiring that the contents providing server change the expected transmission time of data files of additional contents data to transmit next with reference to the information on presentation time of each data file included in the playback control information.

### Claim 8 (depends on 7)

The method set forth in claim 7, wherein the request is to delay the expected transmission time.

### Claim 9 (depends on 8)

The method set forth in claim 8, wherein the request to delay the expected transmission time is made when the additional contents data files cannot be stored in the remaining space of the one area of the buffer memory.

### Claim 10 (depends on 5)

The method set forth in claim 5, wherein the presenting step further includes the step of determining a transmission method for additional contents data to be received next by comparing the information on the size of data files of additional contents data that will be received next with the size of the remaining space of the one area of the buffer memory for temporarily storing the additional contents data and sending a transmission request according to the determined method.

### Claim 11 (depends on 10)

The method set forth in claim 10, wherein the transmission request is for requiring that the contents providing server divides the data files of the additional contents data that will be received next into several groups and transmit the groups individually.

### Claim 12 (depends on 10)

The method set forth in claim 10, wherein the transmission request is for requiring that the contents providing server compresses the data files of the additional contents data that will be received next before transmission.

### Claim 13 (depends on 12)

The method set forth in claim 12, wherein information on the lowest allowable compression rate is provided when the request is made.

### Claim 14

An apparatus for reproducing A/V data recorded on an interactive recording medium, comprising:
a receiving unit adapted to receive playback control information for the A/V data from a contents providing server, the playback control information including a presentation time associated with additional contents data, wherein the additional contents data is associated with the A/V data and is provided from the contents providing server;
a buffer memory adapted to store the received playback control information, the buffer memory being divided into at least two areas logically, the received playback control information being stored in one area among two areas;
a presentation engine adapted to reproduce the A/V data and the additional contents data; and
a controller adapted to control a presentation of the A/V data reproduced from the interactive recording medium in conjunction with the additional contents data received from the contents providing server using the playback control information.

### Claim 15 (depends on 14)

The apparatus set forth in claim 14, wherein the receiving unit is adapted to receive the playback control information all at once by the contents providing server to receive multiple pieces one by one when needed by the contents providing server.

### Claim 16 (depends on 14)

The apparatus set forth in claim 14, wherein the playback control information includes access information for data files of the additional contents data to be reproduced in conjunction with some intervals of the A/V data,
wherein the controller is adapted to control the presentation engine to reproduce the additional data in response to the access information.

### Claim 17 (depends on 16)

The apparatus set forth in claim 16, wherein the playback control information further includes information on the size of data files of additional contents data that will be received next,
wherein the controller is adapted to control the presentation engine to reproduce the additional contents data using information on the size of the data files of additional contents data.

### Claim 18 (depends on 16)

The apparatus set forth in claim 16, wherein the access information for data files of the additional contents data is file names of the data files or addresses of the places in which the data files are stored.

### Claim 19 (depends on 16)

The apparatus set forth in claim 16, wherein the controller is adapted to transmit a request to the contents providing server for requiring that the contents providing server changes the expected transmission time of data files of additional contents data to transmit next with reference to the information on presentation time of each data file included in the playback control information.

### Claim 20 (depends on 19)

The apparatus set forth in claim 19, wherein the request is to delay the expected transmission time.

### Claim 21 (depends on 20)

The apparatus set forth in claim 20, wherein the request to delay the expected transmission time is made when the additional contents data files cannot be stored in the remaining space of the area of the buffer memory.

### Claim 22 (depends on 17)

The apparatus set forth in claim 17, wherein the controller is adapted to compare the information on the size of data files of next additional contents data with the size of the remaining space of the area of the buffer memory for temporarily storing the additional contents data, determine a receiving method for next additional contents data, and transmit a request according to the determined method to the contents providing server.

### Claim 23 (depends on 22)

The apparatus set forth in claim 22, wherein the controller is adapted to request the contents providing server to divide data files of the next additional contents data into several groups and to transmit each group in sequential manner.

### Claim 24 (depends on 22)

The apparatus set forth in claim 22, wherein the controller is adapted to request the contents providing server to compress the data files of the next additional contents data before transmission.