PATENT CLAIM ANALYSIS

Application Number: 15757104
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-06
Patent Classification: ["375", "240130"]

Abstract:
A method for a video encoder or decoder using an Intra Block Copy (IntraBC) mode is disclosed. If IntraBC mode is enabled and no loop filter is used for a current picture, a currently decoded reference picture for the current picture is marked as a long-term reference picture before and during decoding of the current picture. The currently decoded reference picture is assigned in reference picture list construction for IntraBC reference of the current picture and buffer fullness for the DPB is calculated before starting decoding the current picture by taking into account of only one reference picture buffer. According to another method, if the maximum DPB size is 1, a variable or a syntax element is set to a target value to impose restriction to use only one picture storage buffer in the DPB to store reference picture for encoding or decoding of a current picture.

Claim (Index 4):
A method of managing a DPB (decoded picture buffer) for a video encoder or decoder using coding modes including an Inter prediction mode and an Intra Block Copy (IntraBC) mode, comprising:\n determining a maximum DPB (decoded picture buffer) size; and if the maximum DPB size corresponds to 1, setting a variable or a syntax element to a target value to impose restriction to use only one picture storage buffer in the DPB to store reference picture for encoding or decoding of a current picture.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 2.05263
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15766921', '15577237', '15574253', '15520593', '15578184']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.565191933610756
- 35 USC 102 Novelty (BERT): 0.5870036031729197
- Combined Prediction Score: 0.5673731005669724
- Mean Citation Score: 427.009504
- Max Citation Score: 518.187
- Similarity Product: 443.4207781991959

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