WO1998016069B1 - Digital recorder with trick play operation - Google Patents
Digital recorder with trick play operationInfo
- Publication number
- WO1998016069B1 WO1998016069B1 PCT/US1997/018167 US9718167W WO9816069B1 WO 1998016069 B1 WO1998016069 B1 WO 1998016069B1 US 9718167 W US9718167 W US 9718167W WO 9816069 B1 WO9816069 B1 WO 9816069B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- recording
- bit stream
- mpeg bit
- coupled
- Prior art date
Links
- 230000002463 transducing effect Effects 0.000 claims abstract 8
- 230000000295 complement effect Effects 0.000 claims 2
- 230000000977 initiatory effect Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
Abstract
A record and replay apparatus (200) comprises a transducing means (251) for reproducing a digital signal (221) from a medium (249). A control means (205) controls a reproduction mode of the apparatus. A decoding means (117) is coupled to the transducing means (251) for decoding the digital signal (221) and deriving therefrom a signal (IF) indicative of a specific picture type. The reproduction mode has a first period of reproduction at a normal play speed and a second period of reproduction at a speed greater than the play speed. The first and second periods alternating with the first period initiated responsive to the signal (IF) indicative of a specific picture type. In a further arrangement a first transducing means (251) records an MPEG signal. A control means (205) generates a signal (A), indicating an intra coded frame occurrence in the MPEG bit stream, which is recorded by a second transducing means (252) together with a servo reference signal.
Claims
20
AMENDED CLAIMS
[received by the International Bureau on 3 April 1998 (03.04.98); original claims 1-5 and 11-14 cancelled; remaining claims unchanged (3 pages)]
6. A record and replay apparatus comprising: a source of an MPEG bit stream signal coupled to an input of said apparatus for recording; a first transducing means for recording a digital signal representative of said MPEG bit stream; a control means coupled to said MPEG bit stream signal and generating a signal indicating an intra coded frame occurrence in said MPEG bit stream; a second transducing means for recording and reproducing a reference signal; and, means responsive to said indicating signal for generating an identifying signal for recording with said reference signal.
7. The recording and replay apparatus of claim 6, wherein said first transducing means reproduces said recorded signal in a reproducing mode comprising a sequence of play and fast play modes responsive to a stored sequence of play and fast play mode commands controlled by said control means.
8. The recording and replay apparatus of claim 7, wherein said control means initiates said reproducing mode responsive to said identifying signal coupled from said second transducing means.
9. A recording and replay apparatus comprising: a source of an MPEG bit stream signal coupled to said apparatus for recording; means coupled to said MPEG bit stream signal for generating a record signal representative of said MPEG bit stream signal; a pair of record transducers each aligned for recording said record signal and having complementary azimuth angles; and,
a control means coupled to receive a signal identifying an intra coded frame occurrence in said MPEG bit stream signal and controllably coupled to said generating means, wherein responsive to said identifying signal said control means enabling a record signal representative of an intra coded frame part of said MPEG bit stream for recording by one of said transducer pair having a specific azimuth angle.
10. A recording and replay apparatus comprising: a source of an MPEG bit stream signal coupled to said apparatus for recording; means coupled to said MPEG bit stream signal for generating a record signal representative of said MPEG bit stream signal a record transducer pair having complementary azimuth angles for recording said record signal; a recording head coupled to a control track signal generator and generating a control track signal for recording; a control means for receiving a signal identifying an intra coded frame occurrence in said MPEG bit stream signal, said control means being controllably coupled to generating means and to said control track signal generator; and, responsive to said identifying signal said control means enabling said generating means for coupling a record signal representative of an intra coded frame part of said MPEG bit stream for recording by one transducer of said transducer pair having a specific azimuth angle, and responsive to said identifying signal said control means modifies said control track signal for recording.
22
15. A recording and replay apparatus with trick play reproduction mode comprising the steps of; a) initiating a play mode; b ) determining an average number of control track pulses occurring between I frames; c) selecting a trick play mode; d) counting control track pulses to determine an average value; e) testing a count for equality with said average number; and, f) initiating said play mode at count equality.
16. The recording and replay apparatus of claim 15, wherein said step b) additionally comprises: controlling average determination responsive to a reproduced I frame mark.
17. The recording and replay apparatus of claim 15, wherein said step b) additionally comprises: controlling determination of average responsive to an I frame indicator decoded from reproduced data.
18. The recording and replay apparatus of claim 15, wherein said step d) additionally comprises: controlling counting responsive to a reproduced I frame mark.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97911639A EP0931419B1 (en) | 1996-10-08 | 1997-10-08 | Digital recorder with trick play operation |
| US09/269,684 US8200071B1 (en) | 1996-10-08 | 1997-10-08 | Digital recorder with trick play operation |
| BRPI9712499-0A BR9712499B1 (en) | 1996-10-08 | 1997-10-08 | Digital recorder with magic execution operation. |
| DE69735231T DE69735231T2 (en) | 1996-10-08 | 1997-10-08 | DIGITAL RECORDER WITH SPECIAL PLAYBACK OPERATION |
| JP51772298A JP4466978B2 (en) | 1996-10-08 | 1997-10-08 | Recording and playback device |
| AU48961/97A AU4896197A (en) | 1996-10-08 | 1997-10-08 | Digital recorder with trick play operation |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9620923.4A GB9620923D0 (en) | 1996-10-08 | 1996-10-08 | Digital recorder with trick play operation |
| GB9620923.4 | 1996-10-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998016069A1 WO1998016069A1 (en) | 1998-04-16 |
| WO1998016069B1 true WO1998016069B1 (en) | 1998-05-28 |
Family
ID=10801080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/018167 WO1998016069A1 (en) | 1996-10-08 | 1997-10-08 | Digital recorder with trick play operation |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US8200071B1 (en) |
| EP (2) | EP1259083B1 (en) |
| JP (1) | JP4466978B2 (en) |
| KR (1) | KR100566353B1 (en) |
| CN (3) | CN1245034C (en) |
| AU (1) | AU4896197A (en) |
| BR (1) | BR9712499B1 (en) |
| DE (2) | DE69736255T2 (en) |
| GB (1) | GB9620923D0 (en) |
| HK (1) | HK1055874A1 (en) |
| WO (1) | WO1998016069A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6954582B2 (en) * | 2000-02-18 | 2005-10-11 | Sanyo Electric Co., Ltd. | Digital VTR and video recording / reproducing apparatus |
| KR100552077B1 (en) * | 2003-08-29 | 2006-02-20 | 바로비젼(주) | Content providing system and mobile terminal for it |
| US8214857B2 (en) * | 2008-05-29 | 2012-07-03 | International Business Machines Corporation | Generating a combined video stream from multiple input video streams |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734633A (en) | 1980-08-11 | 1982-02-25 | Nec Corp | Electron gun structure |
| JPS62223876A (en) | 1987-02-19 | 1987-10-01 | Victor Co Of Japan Ltd | Data recording method for vtr |
| JP2909239B2 (en) * | 1991-03-27 | 1999-06-23 | 株式会社東芝 | High-efficiency coded recording / reproducing device |
| DE69230310T2 (en) | 1991-09-30 | 2000-07-13 | Kabushiki Kaisha Toshiba, Kawasaki | Device for processing band-compressed signals and VTR |
| JP3210425B2 (en) | 1992-01-22 | 2001-09-17 | 株式会社東芝 | Recording and playback device |
| JP3477719B2 (en) | 1992-04-30 | 2003-12-10 | 松下電器産業株式会社 | Video tape recorder |
| US5377051A (en) * | 1993-01-13 | 1994-12-27 | Hitachi America, Ltd. | Digital video recorder compatible receiver with trick play image enhancement |
| JPH07162800A (en) | 1993-12-07 | 1995-06-23 | Hitachi Ltd | Compressed moving image recording apparatus and reproducing apparatus |
| JP3385109B2 (en) * | 1994-04-12 | 2003-03-10 | 三菱電機株式会社 | Digital VTR |
| KR970004637B1 (en) * | 1994-07-18 | 1997-03-29 | 엘지전자 주식회사 | Variable speed playback of DVCR |
-
1996
- 1996-10-08 GB GBGB9620923.4A patent/GB9620923D0/en active Pending
-
1997
- 1997-10-08 AU AU48961/97A patent/AU4896197A/en not_active Abandoned
- 1997-10-08 KR KR1019997003020A patent/KR100566353B1/en not_active Expired - Fee Related
- 1997-10-08 DE DE69736255T patent/DE69736255T2/en not_active Expired - Lifetime
- 1997-10-08 EP EP02016153A patent/EP1259083B1/en not_active Expired - Lifetime
- 1997-10-08 WO PCT/US1997/018167 patent/WO1998016069A1/en active IP Right Grant
- 1997-10-08 JP JP51772298A patent/JP4466978B2/en not_active Expired - Fee Related
- 1997-10-08 BR BRPI9712499-0A patent/BR9712499B1/en not_active IP Right Cessation
- 1997-10-08 DE DE69735231T patent/DE69735231T2/en not_active Expired - Lifetime
- 1997-10-08 US US09/269,684 patent/US8200071B1/en not_active Expired - Fee Related
- 1997-10-08 CN CNB031603440A patent/CN1245034C/en not_active Expired - Fee Related
- 1997-10-08 CN CNB971986444A patent/CN1169377C/en not_active Expired - Fee Related
- 1997-10-08 EP EP97911639A patent/EP0931419B1/en not_active Expired - Lifetime
-
2003
- 2003-01-30 CN CNB031021689A patent/CN1220374C/en not_active Expired - Fee Related
- 2003-11-07 HK HK03108100A patent/HK1055874A1/en not_active IP Right Cessation
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