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Annex F

Patent statements

The user’s attention is called to the possibility that, for some of the processes specified in this part of ISO/IEC 13818, conformance with this specification may require use of an invention covered by patent rights.

By publication of this part of ISO/IEC 13818, no position is taken with respect to the validity of this claim or of any patent rights in connection therewith. However, each company listed in this Annex has undertaken to file with the Information Technology Task Force (ITTF) a statement of willingness to grant a license under such rights that they hold on reasonable and non-discriminatory terms and conditions to applicants desiring to obtain such a license.

Information regarding such patents can be obtained from the following organisations.

The table summarises the formal patent statements received and indicates the parts of the standard to which the statement applies. The list includes all organisations that have submitted informal patent statements. However, if no “X” is present, no formal patent statement has yet been received from that organisation.

Company	V	A	S
AT&T	X	X	X
BBC Research Department	X		X
continued

Company	V	A	S
National Transcommunications Limited	X
Victor Company of Japan Limited	X	X	X

Annex G

Bibliography

1 Arun N. Netravali & Barry G. Haskell “Digital Pictures, representation and compression” Plenum Press, 1988

2 Didier Le Gall “MPEG: A Video Compression Standard for Multimedia Applications” Trans. ACM, April 1991

3 C Loeffler, A Ligtenberg, G S Moschytz “Practical fast 1-D DCT algorithms with 11 multiplications” Proceedings IEEE ICASSP-89, Vol. 2, pp 988-991, Feb. 1989

4 See the Normative Reference for Recommendation ITU R BT.601

5 See the Normative Reference for IEC Standard Publication 461

6 See the Normative Reference for Recommendation ITU T H.261

7 See the Normative reference for IEEE Standard Specification P1180-1990

8 ISO/IEC 10918-1 | ITU-T T.81 (JPEG)

9 E Viscito and C Gonzales “A Video Compression Algorithm with Adaptive Bit Allocation and Quantization”, Proc SPIE Visual Communications and Image Proc ‘91 Boston MA November 10-15 Vol. 1605 205, 1991

10 A Puri and R Aravind “Motion Compensated Video Coding with Adaptive Perceptual Quantization”, IEEE Trans. on Circuits and Systems for Video Technology, Vol. 1 pp 351 Dec. 1991.

11 C. Gonzales and E. Viscito, “Flexibly scalable digital video coding”. Image Communications, Vol. 5, Nos. 1-2, February 1993

12 A.W.Johnson, T.Sikora and T.K. Tan, “Filters for Drift Reduction in Frequency Scalable Video Coding Schemes”

13 R.Mokry and D.Anastassiou, “Minimal Error Drift in Frequency Scalability for Motion-Compensated DCT Coding”. IEEE Transactions on Circuits and Systems for Video Technology,

14 K.N. Ngan, J. Arnold, T. Sikora, T.K. Tan and A.W. Johnson. “Frequency Scalability Experiments for MPEG-2 Standard”. Asia-Pacific Conference on Communications, Korea, August 1993.

15 T. Sikora, T.K. Tan and K.N. Ngan, “A Performance Comparison of Frequency Domain Pyramid Scalable Coding Schemes Within the MPEG Framework”. Proc. PCS, Picture Coding Symposium, Lausanne, pp. 16.1 - 16.2, Switzerland March 1993.

16 Masahiro Iwahashi, “Motion Compensation Technique for 2:1 Scaled-down Moving Pictures”. 8-14, Picture Coding Symposium ‘93.

17 Sikora, T. and Pang, K., “Experiments with Optimal Block-Overlapping Filters for Cell Loss Concealment in Packet Video”, Proc. IEEE Visual Signal Processing and Communications Workshop, Melbourne, 21-22 Sept. 1993, pp. 247-250.

18 A. Puri “Video Coding Using the MPEG-2 Compression Standard”, Proc SPIE Visual Communications and Image Proc ‘93 Boston MA November,1993.

19 A. Puri and A. Wong “Spatial Domain Resolution Scalable Video Coding”, Proc SPIE Visual Communications and Image Proc ‘93 Boston MA November,1993.