PATENT CLAIM ANALYSIS

Application Number: 16007178
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["375", "240120"]

Abstract:
A video predictive coding system includes a video predictive encoding device having: an input circuit to receive pictures constituting a video sequence; an encoding circuit which conducts predictive coding of a target picture using, as reference pictures, pictures encoded and reconstructed in the past, to generate compressed picture data; a reconstruction circuit to decode the compressed picture data to reconstruct a reproduced picture; picture storage to store the reproduced picture as a reference picture for encoding of a subsequent picture; and a buffer management circuit which controls the picture storage, (prior to predictive encoding of the target picture), on the basis of buffer description information BD[k] related to reference pictures used in predictive encoding of the target picture, encodes the buffer description information BD[k] with reference to buffer description information BD[m] for a picture different from the target picture, and adds encoded data thereof to the compressed picture data.

Claim (Index 2):
A video predictive decoding device comprising:\n input means which inputs compressed picture data for each of a plurality of pictures constituting a video sequence, the compressed picture data containing data resulting from predictive coding using a plurality of reference pictures, which have been decoded and reproduced in the past, and encoded data of buffer description information BD[k] relating to the plurality of reference pictures; reconstruction means which decodes the compressed picture data to reconstruct a reproduced picture; picture storage means which stores at least one said reproduced picture as a reference picture to be used for decoding of a subsequent picture; and buffer management means which controls the picture storage means, wherein, prior to reconstruction of the reproduced picture, the buffer management means decodes, with reference to buffer description information BD[m] for another picture different from the reproduced picture, the encoded data of the buffer description information BD[k] for the reproduced picture, and then controls the picture storage means on the basis of the decoded buffer description information BD[k], wherein the decoding of the encoded data of the buffer description information BD[k] for the reproduced picture includes: decoding an index m identifying the buffer description information BD[m] for another picture different from the reproduced picture, decoding a value of deltaBD representing a difference between identification information of the corresponding reference pictures in the BD[m] and the BD[k], decoding a plurality of flags ibd_flag[j] indicating both whether or not an identification information of a j-th reference picture included in the BD[m] is used for decoding an identification information of a reference picture included in the BD[k] and whether or not the j-th reference picture included in the BD[m] is used for decoding a current processing target picture, and decoding an information on the reference picture in the BD[k] based on the decoded index m, the decoded value of deltaBD and the decoded flags ibd_flag[j], wherein, when the ibd_flag[j] indicates that an information on the j-th reference picture included in the BD[m] is used for decoding an information on the reference picture included in the BD[k], a deltaPOC[i] that is an identification information of the i-th reference picture included in the BD[k] is derived by adding the value of deltaBD to a deltaPOC[j] that is an identification information of the j-th reference picture included in the BD[m], and wherein, when j is equal to the number of reference pictures included in the BD[m], the deltaPOC[i] that is the identification information of the i-th reference picture included in the BD[k] is set to the value of deltaBD.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 94.0
- Lexical Diversity: 2.47143
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14255728', '15473849', '15251842', '15251876', '15251808']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6375977744697318
- 35 USC 102 Novelty (BERT): 0.6887339528240181
- Combined Prediction Score: 0.6427113923051604
- Mean Citation Score: 712.5870679999997
- Max Citation Score: 727.8729
- Similarity Product: 690.7999735524775

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test