RECORDING APPARATUS

• US 20130156402A1
• Filed: 11/12/2012
• Published: 06/20/2013
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Murakami, Naoyuki
• Granted Patent: US 8,649,657 B2
• Time in Patent Office: Days
• US Class Current: 386/248
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/32 on separate auxiliary tracks of the same or an auxiliary record carrier
• CPC Class Codes: H04N 9/79 Processing of colour television signals in connection with recording
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

A recording apparatus for recording a moving image file including a first area to store moving image data and a second area to store meta data constructed by one or more tracks into a recording medium generates a first track, stores first position information into the first track and stores the first track into the second area to be recorded into the recording medium, generates a second track when a size of moving image file reaches a threshold value, generates second position information which can represent a larger value than the first position information, stores the second position information into the second track, stores the first and second tracks into the second area to be recorded into the recording medium.

Claims

1. A recording apparatus comprising:

a recording unit configured to record a moving image file including a first area for storing moving image data and a second area for storing meta data constructed by one or more tracks into a recording medium;

a generating unit configured to generate position information regarding a position of the moving image data in the first area; and

a control unit configured to generate a first track, control the generating unit and the recording unit so as to generate first position information, store the first position information into the first track and store the first track into the second area to record the first track as the moving image file into the recording medium,

wherein the control unit generates a second track when a size of the moving image file has reached a preset threshold value, and

the control unit further controls the generating unit so as to generate second position information which can represent a larger value than the first position information with respect to the position of the moving image data in the first area, and also controls the recording unit so as to store the second position information into the second track and store the first and second tracks into the second area to record the moving image file into the recording medium.

2. An apparatus according to claim 1, wherein the first position information is information regarding the position of the moving image data stored in the first area until the size of the moving image file reaches the threshold value, and the second position information is information regarding the position of the moving image data stored in the first area after the size of the moving image file reaches the threshold value.

3. An apparatus according to claim 1, wherein the control unit discriminates whether or not the size of the moving image file reaches the threshold value in the case where the recording unit records the first area into the recording medium as the moving image file, and after it is determined that the size of the moving image file reaches the threshold value, the control unit controls the generating unit so as to generate the second position information and not to generate the first position information.

4. An apparatus according to claim 1, further comprising an instructing unit configured to instruct the start and stop of recording the moving image file into the recording medium, and wherein the control unit generates the first track in accordance with an instruction to start the recording by the instructing unit and controls the recording unit in accordance with an instruction to stop the recording so as to record the first position information and the second position information into the recording medium.

5. An apparatus according to claim 1, wherein the threshold value is set on the basis of a maximum value of values which can represent the first position information.

6. A recording method of a moving image file in a recording apparatus having a recording unit configured to record the moving image file including a first area for storing moving image data and a second area for storing meta data constructed by one or more tracks into a recording medium and a generating unit configured to generate position information regarding a position of the moving image data in the first area, comprising:

a control step of generating a first track, controlling the generating unit and the recording unit so as to generate first position information, store the first position information into the first track and store the first track into the second area to record the first track as the moving image file into the recording medium,

wherein the control step includes generating a second track when a size of the moving image file reaches a preset threshold value, and

the control step further includes controlling the generating unit so as to generate second position information which can represent a larger value than the first position information with respect to the position of the moving image data in the first area, and the recording unit is also controlled so as to store the second position information onto the second track and store the first and second tracks into the second area to record the moving image file into the recording medium.

7. A non-transitory computer-readable storage medium storing a program comprising codes for causing a computer to execute the control method according to claim 6.

8. A recording apparatus comprising:

a recording unit configured to store moving image data and audio data into an information file of MP4 file format and record the information file on a recording medium;

a generation unit configured to generate a first trak box, a second trak box, a stco box and a co64 box during recording of the information file,

a control unit configured to control the recording unit to store the first trak box and the second trak box into a moon box of the information file recorded on the recording medium,

wherein the control unit controls the recording unit to store the stco box into the first trak box of the information file and store the co64 box into the second trak of the information file.

9. An apparatus according to claim 8, wherein the generation unit generates the stco box indicating chunk offsets of predetermined chunks of moving image data and audio data stored in the information file and the co64 box indicating chunk offsets of the predetermined chunks and chunks other than the predetermined chunks.

10. An apparatus according to claim 9, wherein the predetermined chunks correspond to the moving image data and the audio data recorded before a size of the information file reaches a threshold, and the other chunks correspond to the moving image data and the audio data recorded after the size of the information file reaches the threshold.

11. An apparatus according to claim 10, wherein the threshold is 4 gigabytes.

12. An apparatus according to claim 8, wherein the generation unit generates the first trak box in accordance with a start of recording the information file and generates the second trak box in accordance with a size of the information file reaching a threshold.

13. An apparatus according to claim 12, wherein the generation unit generates the stco box in accordance with the start of recording the information file and generates the co64 box in accordance with the size of the information file reaching the threshold.

14. A control method of a recording apparatus including a recording unit configured to store moving image data and audio data into an information file of MP4 file format and record the information file on a recording medium, comprising:

generating a first trak box, a second trak box, a stco box and a co64 box during recording of the information file by the recording unit,

a controlling the recording unit to store the first trak box and the second trak box into a moon box of the information file recorded on the recording medium,

wherein the controlling step controls the recording unit to store the stco box into the first trak box of the information file and store the co64 box into the second trak of the information file.

15. A non-transitory computer-readable storage medium storing a program comprising codes for causing a computer to execute the control method according to claim 14.