Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-06-05
1996-12-10
Tran, Thai Q.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
H04N 576, H04N 578
Patent
active
055836500
ABSTRACT:
Methods of operating a digital video recording and playback device, such as a video tape recorder, to arrange trick play data into one or more groups, to generate error correction bits for each group of trick play data, e.g., a group of trick play data blocks, and to correct the data after being read back using the error correction bits is disclosed. The trick play data blocks are made to be smaller than normal play data blocks with multiple trick play data blocks being equal in size to a single normal play data block. By making a group of trick play data blocks equal in size to a single normal play data block, the group of trick play data blocks may be processed as a unit by the same error correction circuitry and in the same manner used to process individual normal play data blocks. In accordance with one embodiment, the error correction bits for a group of trick play data blocks are calculated treating the data in the group of trick play data blocks as a single unit. The error correction bits are appended to the last data block in the group of trick play data blocks. During trick play operation the trick play data blocks are read back and combined according to trick play data groups. Each group of trick play blocks is then processed using the same error correction circuitry used to process a normal play data block.
REFERENCES:
patent: 3934268 (1976-01-01), Uemura
patent: 4031548 (1977-06-01), Kato et al.
patent: 4139867 (1979-02-01), Foerster
patent: 4193098 (1980-03-01), Bixby et al.
patent: 4263623 (1981-04-01), Woo et al.
patent: 4290087 (1981-09-01), Bixby et al.
patent: 4339775 (1982-07-01), Lemke et al.
patent: 4355324 (1982-10-01), Reitmeier
patent: 4392162 (1983-07-01), Yamamoto
patent: 4504869 (1985-03-01), Warren
patent: 4510538 (1985-04-01), Sato et al.
patent: 4541020 (1985-09-01), Kimura
patent: 4558376 (1985-12-01), Heitmann
patent: 4584613 (1986-04-01), Amari et al.
patent: 4636874 (1987-01-01), Hoogendoorh et al.
patent: 4636879 (1987-01-01), Narita et al.
patent: 4668998 (1987-05-01), Aoki
patent: 4783707 (1988-11-01), Nemoto et al.
patent: 4807053 (1989-02-01), Heijnemans
patent: 4825301 (1989-04-01), Pape et al.
patent: 4887169 (1989-12-01), Bannai et al.
patent: 4899233 (1990-02-01), Yoshida
patent: 4910605 (1990-03-01), Sasaki et al.
patent: 4985781 (1991-01-01), Hirasawa
patent: 5023710 (1991-06-01), Kondo et al.
patent: 5027235 (1991-06-01), Furuyama
patent: 5047869 (1991-09-01), Aoki et al.
patent: 5050014 (1991-09-01), Maeda et al.
patent: 5065259 (1991-11-01), Kubota et al.
patent: 5097363 (1992-03-01), Takei et al.
patent: 5119208 (1992-06-01), Fujimoto
patent: 5126852 (1992-06-01), Nishino et al.
patent: 5132807 (1992-07-01), Takimoto et al.
patent: 5134464 (1992-07-01), Basile et al.
patent: 5136391 (1992-08-01), Minami
patent: 5136394 (1992-08-01), Haikawa et al.
patent: 5140417 (1992-08-01), Tanaka et al.
patent: 5140437 (1992-08-01), Yonemitsu et al.
patent: 5144425 (1992-09-01), Joseph
patent: 5146337 (1992-09-01), Grubbs
patent: 5148272 (1992-09-01), Acampora et al.
patent: 5212549 (1993-05-01), Ng et al.
patent: 5218449 (1993-06-01), Ko et al.
patent: 5225946 (1993-07-01), Uchiumi
patent: 5282049 (1994-01-01), Hatakegawa
patent: 5291343 (1994-03-01), Goto
patent: 5355229 (1994-10-01), Arano et al.
patent: 5359471 (1994-10-01), Hasegawa
patent: 5386241 (1995-01-01), Park
patent: 5418623 (1995-05-01), Park
M. S. Hong, T. E. Kim, Y. K. Kim, G. M. Park, S. K. Kim, IEEE 1992 International Conference on Consumer Electronics Digest of Technical Papers, "Adaptive Bit Allocation Coder for DVCR Trick Play", Jun. 2, 1992, pp. 110-111.
P. Kauf, S. Rauthenberg, "A DCT Coding Scheme for digital HDTV Recording ", signal Processing of HDTV, III Proceedings of the 4th Int. Workshop on HDTV, Apr. 9, 1991, pp. 33-41.
Ho, Yo-Sung, et al. "MPEG-Based Video Coding for Digital Simulcasting," International Workshop on HDTV '92, Nov. 18-20, 1992, Proceedings vol. 1, pp. 141-148.
Robert Rast, Joseph Glaab, General Instrument Corporation, "Interoperability Considerations for Digi Cipher HDTV", Oct. 1, 1992.
Sun, H., et al. "Error Concealment in Digital Simulacast AD-HDTV Decoder," IEEE Transactions on Consumer Electronics, vol. 38, No. 3, Aug. 1992, pp. 108-118.
J. Lee, J. Seo, Y. Park, D. Youn, T. Oh, IEEE Transactions on Consumer Electronics, "A Study on New DCT-Based Bit Rate Reduction Algorithm and Variable Speed Playback for A Home-Use Digital VCR", vol. 38, No. 3, Aug. 1992, pp. 236-241.
Advanced Television Research Consortium, "Advanced Digital Television, Prototype Hardware Description", Feb. 12, 1992.
David Sarnoff Research Center, Philips Laboratories, "Advanced Digital Television, System Description", Jan. 20, 1992.
I.S.O. MPEG (Moving Pictures Expert Group), "Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5 Mbit/s, Part 2 Video", 2-11172rev 1, Nov. 23, 1991.
Zenith, AT&T, "Technical Details, Digital Spectrum Compatible", Sep. 23, 1991.
C. Yamamitsu, A. Ide, M. Nishino, T. Juri, H. Ohtaka, IEEE Transactions on Consumer Electronics, "A Study on Trick Plays for Digital VCR", vol. 37, No. 3, Aug. 1991, pp. 261-266.
S. Inoue, H. Kaneko, H. Takao, T. Fujii, M. Ishibashi, IEEE Transactions on Consumer Electronics, "New Method for Variable Speed Playback for High Definition VCRs", vol. 37, No. 3, Aug. 1991, pp. 244-251.
General Instrument Corporation Videocipher Division, "Digicipher HDTV System Description", Document No. 62004, Aug. 22, 1991.
Richard Brush, "Design considerations for the D-2 NTSC composite DNTR", pp. 182-193, SMPTE Journal, Mar. 1988.
Drafts of Rocommendation H.262,ISO/IEC 13818-1 titled "Information Technology-Generic Coding of Moving Pictures and Associated Audio", (Nov. 1993 ISO-MPEG Committee draft).
Drafts of Recommendation H.262, ISO/IEC 13818-2 titled "Information Technology-Generic Coding of Moving Pictures and Associated Audio", (Nov. 1993 ISO-MPEG Committee draft).
Boyce Jill M.
Fuhrer Jack S.
Henderson John G. N.
Lane Frank A.
Mohri Katsuo
Chevalier Robert
Hitachi , Ltd.
Hitachi America Ltd.
Michaelson Peter L.
Straub Michael P.
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