Claims
- 1. A method of integrating input 30 frame/s format material and a 60 field/s 2:1 interlace scan format digital video signal to produce an output 60 field/s 2:1 interlace scan format digital video signal, comprising the steps of:
- (a) producing from the input 30 frame/s format material a 30 frame/s progressive scan format digital video signal;
- (b) converting the 30 frame/s progressive scan format digital signal to a 60 field/s 2:1 interlace scan format digital video signal; and
- (c) combining the converted signal with the input 60 field/s interlace scan format digital video signal to produce a combined digital video signal.
- 2. A method as claimed in claim 1, wherein, in conversion step `b`, at least some of the fields of the converted signal are produced using motion compensated interpolation between successive frames of the 30 frame/s progressive scan formal digital video signal.
- 3. A method as claimed in claim 1, wherein production step `a` comprises the step of scanning 30 frame/s format source material to produce the 30 frame/s progressive scan format digital video signal.
- 4. A method as claimed in claim 1, further comprising the step of converting the combined 60 field/s 2:1 interlace scan format digital video signal to 30 frame/s progressive scan format.
- 5. A method as claimed in claim 4, wherein, in the conversion to 30 frame/s progressive scan format, none of the frames of the converted signal are produced using motion compensated interpolation between successive fields of the combined 60 field/s 2:1 interlace scan format digital video signal.
- 6. A method as claimed in claim 4, further comprising the steps of:
- digital-to-analogue converting the 30 frame/s progressive scan format digital video signal to form a 30 frame/s progressive scan format analogue video signal; and
- supplying the analogue video signal to a photographic recorder to record the content of the analogue video signal on photographic film in 30 frame/s format.
- 7. A method as claimed in claim 1, further comprising the step of converting the combined 60 field/s 2:1 interlace scan format digital video signal to 24 frame/s progressive scan format.
- 8. A method as claimed in claim 7, wherein, in the conversion to 24 frame/s progressive scan format, at least some of the frames of the converted signal are produced using motion compensated interpolation between successive fields of the combined 60 field/s 2:1 interlace scan format digital video signal.
- 9. A method as claimed in claim 7, further comprising the steps of:
- digital-to-analogue converting the 24 frame/s progressive scan format digital video signal to form a 24 frame/s progressive scan format analogue video signal; and
- supplying the analogue video signal to a photographic recorder to record the content of the analogue video signal on photographic film in 24 frame/s format.
- 10. A method as claimed in claim 1, further comprising the step of converting the combined 60 field/s 2:1 interlace scan format digital video signal to 50 field/s 1250-lines interlace scan format.
- 11. A method as claimed in claim 10, further comprising the step of converting the 1250-lines format signal to 50 field/s 625-lines 2:1 interlace scan format.
- 12. The method as claimed in claim 1, further comprising the step of converting the combined 60 field/s 2:1 interlace scan format digital video signal to NTSC format.
- 13. The method as claimed in claim 1, further comprising the step of converting the combined 60 fields/ 2:1 interlace scan format digital video signal to 50 frame/s 1250-lines progressive scan format.
- 14. The method as claimed in claim 13, further comprising the step of converting the 1250-lines progressive scan format signal to 50 field/s 625-lines 2:1 interlace scan format.
- 15. The method as claimed in claim 1, further comprising the step of converting the combined 60 field/s 2:1 interlace scan format digital video signal to 50 field/s 625-lines 2:1 interlace scan format.
- 16. A method of integrating input 60 frame/s format material and a 60 field/s 2:1 interlace scan format digital video signal to produce an output 60 field/s 2:1 interlace scan format digital video signal comprising the steps of:
- producing from the input 60 frame/s format material a 60 frame/s progressive scan format digital video signal;
- converting the 60 frame/s progressive scan format digital signal to a 60 field/s 2:1 interlace scan format digital video signal by a pull-down every field technique; and
- combining the converted signal with the input 60 field/s interlace scan format digital video signal to produce a combined digital video signal.
Priority Claims (12)
Number |
Date |
Country |
Kind |
9024816 |
Nov 1990 |
GBX |
|
9024817 |
Nov 1990 |
GBX |
|
9024818 |
Nov 1990 |
GBX |
|
9024825 |
Nov 1990 |
GBX |
|
9024826 |
Nov 1990 |
GBX |
|
9024827 |
Nov 1990 |
GBX |
|
9024828 |
Nov 1990 |
GBX |
|
9024829 |
Nov 1990 |
GBX |
|
9024835 |
Nov 1990 |
GBX |
|
9024836 |
Nov 1990 |
GBX |
|
9024837 |
Nov 1990 |
GBX |
|
9024838 |
Nov 1990 |
GBX |
|
Parent Case Info
This application is a division of application Ser. No. 07/789,754, filed Nov. 8, 1991.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
789754 |
Nov 1991 |
|