PATENT CLAIM ANALYSIS

Application Number: 15766921
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["375", "240120"]

Abstract:
Method and apparatus of managing a DPB (decoded picture buffer) for a video coding system are disclosed. Whether the IntraBC mode is used for a current picture is determined and a maximum allowed number of decoded pictures in the DPB is allocated based on whether the IntraBC mode is used for the current picture. The current picture is then encoded or decoded using decoded pictures stored in the DPB as reference data. In another method, a maximum number of reordered pictures in the DPB is determined. If certain conditions are true, one or more decoded pictures stored in the DPB will be emptied until none of the conditions is true. One condition corresponds to a number of decoded pictures in the DPB marked as “needed for output” being greater than the maximum number of reordered picture modified according to whether the IntraBC mode is used for the current picture.

Claim (Index 13):
An apparatus for managing a DPB (decoded picture buffer) in a video coding system allowing multiple colour formats, comprising one or more electronic circuits or processors arranged to:\n determine a target total memory size for storing a target maximum number of decoded pictures in the DPB at a target resolution in a target colour format; determine a scaling factor for current pictures having the same target resolution, but in a second colour format different from the target colour format; allocate a second maximum number of second decoded pictures in the DPB for the current pictures according to the target maximum number of decoded pictures scaled by the scaling factor, wherein the scaling factor is smaller than 1 for at least one second colour format; and encode or decode the current picture using second decoded pictures stored in the DPB as reference data, wherein a total number of second decoded pictures in the DPB is equal to or less than the second maximum number of second decoded pictures in the DPB.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 91.0
- Lexical Diversity: 2.14667
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15757104', '15577237', '15574253', '14801142', '14116071']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5789081968426567
- 35 USC 102 Novelty (BERT): 0.5865567648376097
- Combined Prediction Score: 0.5796730536421519
- Mean Citation Score: 455.032224
- Max Citation Score: 553.7554299999998
- Similarity Product: 418.704877056732

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

Dataset: test