Editing of digital video information signals

• US 6,263,149 B1
• Filed: 07/14/1999
• Issued: 07/17/2001
• Est. Priority Date: 07/14/1998
• Status: Expired due to Fees

• Current Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Original Assignee: US Philips Corporation (Koninklijke Philips N.V.)
• Inventors: Persoon, Eric H. J.
• Primary Examiner(s): TRAN, THAI Q
• Application Number:
  US09/352,098
• Time in Patent Office: 734 Days
• Field of Search: 386/4, 386/52, 386/55, 386/64, 345/328, 360/13, 369/83
• US Class Current: 386/283
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D

Abstract

The invention relates to editing of video information signals recorded on a record carrier, such as an optical record carrier (3). The editing is carried out in an internal memory of the edit apparatus. Editing results in an edited stream of information, which includes a bridging fragment. Prior to recording the bridging fragment on the record carrier, the edited stream of video information around the edit point is made visible by retrieving the edited stream of video information directly from the internal memory, so as shorten the time required to make the edited stream of information visible on a display screen.

Claims

1. A method of editing MPEG digital video information signals, comprising the steps of:

reading a first block of information of a first digital MPEG information signal that is located around an edit point to be determined in the first digital MPEG information signal, into In internal memory of an editing apparatus;

first outputting the first block of information from the apparatus, to an MPEG display;

first establishing an ‘

out’

position in the first block of information as the edit point in the first digital video information signal;

reading a second block of information of a second digital video MPEG information signal that is located around an edit point to be determined in the second digital video information signal, into the internal memory of the apparatus;

second outputting the second block of information of the second digital video information signal from the apparatus, to the MPEG display;

second establishing an ‘

in’

position in the second block of information as the edit point in the second digital video information signal;

processing a portion of the first block of digital MPEG information that precedes and may include the ‘

out’

position, and a portion of the second block of digital MPEG information that follows and may include the ‘

in’

position, into a composite block of digital MPEG information;

third outputting the composite block of digital MPEG information from the apparatus to the MPEG display; and

recording at least a portion of the composite block of digital MPEG information that was displayed, onto a record carrier;

and in which the record carrier includes a data recording portion divided up into fixed size fragment areas;

the processing means encodes the digital MPEG blocks to be recorded into a channel signal of sequential channel blocks; and

the size of the channel blocks of information satisfies the following relationship;

2. The method of claim 1, wherein:

the method further comprises manually inputting a recording control signal after the outputting of the composite block of information to the MPEG display; and

the recording step depends on the recording control signal.

3. The method of claim 1, wherein:

the method further comprises manually inputting a reject control signal after the outputting of the composite block of information to the MPEG display; and

the method further comprising repeating at least the steps of first establishing, second establishing, processing, and outputting in response to the reject control signal.

4. The method of claim 1, wherein the processing includes the substeps of:

determining an exit point earlier in the first block of information than the ‘

out’

position;

determining an entry point later in the second block of information than the ‘

in’

position; and

creating a bridging block of information from the information in the first block of information between the exit point and the ‘

out’

position and from the information in the second block of information between the ‘

in’

position and the entry point, the composite block of information including a portion of the first block of information that directly precedes the exit point, the bridging block of information, and a portion of the second block of information that directly follows the entry point.

5. The method of claim 4, where the recording includes recording the bridging block of information on the record carrier.

6. The method of claim 1, wherein, after having inputted the ‘

out’ and

‘

in’

position for an edit point, the bridging block of information is generated in the background, whilst in parallel, the user is capable of determining the ‘

out’ and

‘

in’

position of a next edit point.

7. The method of claim 1, in which the first digital MPEG information signals and the second digital MPEG information signal are different portions of the same digital MPEG information signal.

8. The method of claim 1 in which the record carrier is an optical recording disk.

9. The method of claim 1, wherein:

the method further comprises manually inputting a recording control signal after the outputting of the composite block of information to the display;

the recording depends on the recording control signal;

the method further comprises manually inputting a reject control signal after the outputting of the composite block of information to the display;

the method further comprises repeating at least the steps of first establishing, second establishing, processing, and third outputting in response to the reject control signal;

the processing includes the substeps of;

determining an exit point earlier in the first block of information than the ‘

out’

position;

determining an entry point later in the second block of information than the ‘

in’

position; and

creating a bridging block of information from the information in the first block of information between the exit point and the ‘

out’

position and from the information in the second block of information between the ‘

in’

position and the entry point, the composite block of information including a portion of the first block of information that directly precedes the exit point, the bridging block of information, and a portion of the second block of information that directly follows the entry point;

the recording includes recording the bridging block of information on the record carrier;

after having inputted the ‘

out’ and

‘

in’

position for an edit point, the bridging block of information is generated in the background, whilst in parallel, the user is capable of determining the ‘

out’ and

‘

in’

position of a next edit point;

the first digital MPEG information signals and the second digital MPEG information signal are different portions of the same digital MPEG information signal;

the record carrier is an optical recording disk;

the channel signal blocks include blocks with a size of 4 MB;

the size of the channel signal blocks varies; and

the processing of the composite block provides seamless playing of the edited digital MPEG information.

10. The method of claim 1 in which the channel signal blocks include blocks with a size of 4 MB.

11. The method of claim 1 in which the size of the channel signal blocks varies.

12. The method of claim 1 in which the processing of the composite block provides seamless playing of the edited digital MPEG information.

13. Apparatus for editing an MPEG digital video signal, comprising:

means for reading a first block of information of a first digital MPEG information signal that is located around an edit point to be determined in the first information signal, into an internal memory of an editing apparatus;

first outputting means for outputting the first block of information from the apparatus, to an MPEG display;

first establishing means for establishing an ‘

out’

position in the first block of information as the edit point in the first digital video information signal;

means for reading a second block of information of a second digital video information signal that is located around an edit point to be determined in the second digital video information signal, into the internal memory of the apparatus;

second outputting means for outputting the second block of information of the second digital video information signal from the apparatus to the MPEG display;

second establishing means for establishing an ‘

in’

position in the second block of information as the edit point in the second digital video information signal;

means for processing a portion of the first block of MPEG information that precedes and may include the ‘

out’

position, and a portion of the second block of MPEG information that follows and may include the ‘

in’

position, into a composite block of MPEG information;

third outputting means for outputting the composite block of MPEG information from the apparatus to the MPEG display; and

means for recording at least a portion of the composite block of digital MPEG information that was displayed, on a record carrier;

and in which the record carrier includes a data recording portion divided up into fixed size fragment areas;

the processing means encodes the digital MPEG blocks to be recorded into a channel signal of sequential channel blocks; and

the size of the channel blocks of information satisfies the following relationship;

14. The apparatus of claim 13, wherein:

the apparatus further comprises means for manually inputting a recording control signal after the outputting of the composite block of information to the display;

the recording depends on the recording control signal;

the apparatus further comprises means for manually inputting a reject control signal after the outputting of the composite block of information to the display;

the apparatus further comprising means for repeating the operation of the first establishing means, second establishing means, processing means, and third outputting means in responses to the reject control signal;

the processing means determines an exit point earlier in the first block of information than the ‘

out’

position;

determines an entry point later in the second block of information than the ‘

in’

position; and

creates a bridging block of information from the information in the first block of information between the exit point and the ‘

out’

position and from the information in the second block of information between the ‘

in’

position and the entry point, the composite block of information including a portion of the first block of information that directly precedes the exit point, the bridging block of information, and a portion of the second block of information that directly follows the entry point;

the recording means records the bridging block of information on the record carrier;

after inputting the ‘

out’ and

‘

in’

position for an edit point, the processing means generates the bridging block of information in the background, while in parallel, the user is capable of determining the ‘

out’ and

‘

in’

position of a next edit point;

the first digital MPEG information signal and the second digital MPEG information signal are different portions of the same digital MPEG information signal;

the record carrier is an optical recording disk;

the channel signal blocks include blocks with a size of 4 MB;

the size of the channel signal blocks varies; and

the processing means produces composite blocks that provide seamless playing of the edited digital MPEG information.