Data transferring device and data transferring method

• US 10,373,650 B2
• Filed: 01/11/2017
• Issued: 08/06/2019
• Est. Priority Date: 01/11/2016
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Bak, Bong-gil, Sarkar, Debasis
• Primary Examiner(s): Harvey, David E
• Application Number:
  US15/403,407
• Publication Number:
  US 20170200478A1
• Time in Patent Office: 937 Days
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00586 said format change concerning the physical format of the recording medium
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 2020/10833 Copying or moving data from one record carrier to another
• CPC Class Codes: G11B 2020/10842 wherein not all recorded data are copied or moved
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2579 HD-DVDs [high definition DVDs]; AODs [advanced optical discs]
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content
• CPC Class Codes: G11B 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 31/00 Arrangements for the associated working of recording or reproducing apparatus with related apparatus with cameras or projectors G03B31/00 ; recording/reproducing of music for electrophonic musical instruments G10H1/0033; automatic arrangements for answering calls or for recording messages for absent subscribers H04M1/64; telephonic communication systems adapted for combination with dictation recording and playback systems H04M11/10; connection of TV recorder with other related apparatus, e.g. TV camera or receiver, in which the TV signal is significantly involved H04N, e.g. H04N23/00, H04N5/765; combination of radio or TV with other apparatus, e.g. with vehicles H05K11/00
• CPC Class Codes: H04N 5/7605 on discs or drums H04N5/781, H04N5/805, H04N5/83, H04N5/85 take precedence
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 5/9202 the additional signal being a sound signal H04N5/9155, H04N5/92 take precedence
• CPC Class Codes: H04N 9/7925 for more than one standard

Abstract

A data transferring device and a data transfer method. The data transferring device for transferring an audio-visual stream stored in a first medium to a second medium, includes: a reader comprising reading circuitry configured to read the audio-visual stream from the first medium; and a controller configured to: extract an audio packet and a video packet from the audio-visual stream; write the audio packet and video packet to the second medium; and store, in a memory, first location information indicating locations at which the audio packet and the video packet are written in the second medium, and second location information indicating locations at which the audio packet and the video packet are read from the first medium.

Claims

1. A device configured to transfer an audio-visual stream stored in a first medium to a second medium, the device comprising:

a memory;

a reader comprising reading circuitry; and

a controller configured to;

control the reader to read the audio-visual stream from the first medium;

extract an audio packet and a video packet from the audio-visual stream;

identify locations at which the audio packet and the video packet are read from the first medium;

write the audio packet and video packet to the second medium;

in response to receiving a pause command to pause transferring, store, in the memory, first location information indicating locations at which the audio packet and the video packet are written in the second medium, and second location information indicating the locations at which the audio packet and the video packet are read from the first medium; and

in response to receiving a resume command to resume transferring, identify, from the memory, the second location information indicating locations at which the audio packet and the video packet are read from the first medium, and control the reader to read the audio-visual stream from the locations corresponding to the identified second location information from the first medium.

2. The device of claim 1, wherein the controller comprises:

a demultiplexer configured to;

extract the audio packet and the video packet from the audio-visual stream;

add information on a location at which the audio packet is read from the first medium, to the audio packet; and

add information on a location at which the video packet is read from the first medium, to the video packet, and

a packet processor configured to;

receive the audio packet and the location information added to the audio packet, and the video packet and the location information added to the video packet; and

write the audio packet and video packet to the second medium; and

store, in the memory, the first location information and the second location.

3. The device of claim 1, wherein the first location information comprises a location of a video packet last written to a video track of the second medium and a location of an audio packet last written to an audio track of the second medium.

4. The device of claim 1, wherein the second location information comprises:

an index of a source file in the first medium including a video packet last written to the second medium and a location of the video packet in the source file; and

an index of a source file in the first medium including an audio packet last written to the second medium and a location of the audio packet in the source file.

5. The device of claim 2, wherein the packet processor is further configured to store a list of source files stored in the first medium, an index of a source file last read from among the source files, and a last read location in the last read source file.

6. The device of claim 1, wherein the controller is further configured to:

receive a command to pause transferring of data from the first medium to the second medium, and

store in a nonvolatile memory, in response to the pause command, the first location information and the second location information.

7. The device of claim 6, wherein the controller is further configured to:

receive a command to resume transferring of data from the first medium to the second medium; and

in response to the received resume command, resume data transfer based on the first location information and the second location information, stored in the nonvolatile memory.

8. The device of claim 7, wherein the controller is further configured to:

determine an index of the source file of the first medium from which the audio-visual stream is to be read; and

determine a read location in the source file, based on the second location information.

9. The device of claim 1, further comprising at least one of:

a decoder configured to decode the audio-visual stream read from the first medium, based on a format of the first medium; and

an encoder configured to encode the acquired video packet and audio packet based on a format of the second medium.

10. The device of claim 1, wherein the first medium comprises a Blu-ray disc, and the second medium comprises a nonvolatile memory.

11. A method of operating a device for transferring an audio-visual stream stored in a first medium to a second medium, the method comprising:

reading the audio-visual stream from the first medium;

extracting an audio packet and a video packet from the audio-visual stream;

identifying locations at which the audio packet and the video packet are read from the first medium;

writing the audio packet and video packet to the second medium;

in response to receiving a pause command to pause transferring, storing, in a memory of the device, first location information indicating locations at which the audio packet and the video packet are written in the second medium and second location information indicating the locations at which the audio packet and the video packet are read from the first medium; and

in response to receiving a resume command to resume transferring, identifying, from the memory, the second location information indicating locations at which the audio packet and the video packet are read from the first medium, and reading the audio-visual stream from the locations corresponding to the identified second location information from the first medium.

12. The method of claim 11, further comprising:

by a demultiplexer,

extracting the audio packet and the video packet from the audio-visual stream;

adding information on a location at which the audio packet is read from the first medium, to the audio packet; and

adding information on a location at which the video packet is read from the first medium, to the video packet, and

by a packet processor,

receiving the audio packet and the location information added to the audio packet, and the video packet and the location information added to the video packet; and

writing the audio packet and video packet to the second medium; and

storing, in the memory, the first location information and the second location.

13. The method of claim 11, wherein the first location information comprises a location of a video packet last written to a video track of the second medium and a location of an audio packet last written to an audio track of the second medium.

14. The method of claim 11, wherein the second location information comprises:

an index of a source file in the first medium including a video packet last written to the second medium and a location of the video packet in the source file; and

an index of a source file in the first medium including an audio packet last written to the second medium and a location of the audio packet in the source file.

15. The method of claim 11, further comprising storing a list of source files stored in the first medium, an index of a source file last read from among the source files, and a last read location in the last read source file.

16. The method of claim 11, further comprising:

receiving a command to pause transferring of data from the first medium to the second medium; and

storing in a nonvolatile memory, in response to the pause command, the first location information and the second location information.

17. The method of claim 16, further comprising:

receiving a command to resume transferring of data from the first medium to the second medium; and

in response to the received resume command, resuming data transfer based on the first location information and the second location information, stored in the nonvolatile memory.

18. The method of claim 17, wherein the resuming of the transfer of data comprises determining an index of the source file of the first medium from which the audio-visual stream is to be read and a read location in the source file, based on the second location information.

19. The method of claim 11, further comprising at least one of:

decoding the audio-visual stream read from the first medium, based on a format of the first medium; and

encoding the acquired video packet and audio packet based on a format of the second medium.

20. The method of claim 11, wherein the first medium comprises a Blu-ray disc, and the second medium comprises a nonvolatile memory.