PATENT CLAIM ANALYSIS

Application Number: 16173334
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["375", "240020"]

Abstract:
The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is “no_residual_data_flag”.

Claim (Index 16):
A coding apparatus for coding a control parameter for controlling coding of an image, the coding apparatus comprising:\n processing circuitry; and storage coupled to the processing circuitry, wherein the processing circuitry performs the following using the storage:\n determining a context for a current block in the image, from among a plurality of contexts; and \n performing arithmetic coding on the control parameter for the current block, using the determined context to generate a bitstream corresponding to the current block, wherein the determining further includes: \n determining a signal type under which the control parameter for the current block is classified; \n when the signal type is a first type, determining the context (i) by using a predetermined fixed value when both of coded control parameters for a left block and an upper block are not available, and (ii) by using both of the coded control parameters for the left block and the upper block when both of the coded control parameters for the left block and the upper block are available, the left block being a neighboring block to the left of the current block, and the upper block being a neighboring block on top of the current block; and \n when the signal type is a second type different from the first type, determining the context by using a predetermined fixed value, irrespective of whether or not both of the coded control parameters for the left block and the upper block are available, without using any coded control parameters for the left block and the upper block, \n wherein the control parameter determined as the first type belongs to the current block having a size larger than or equal to a size of a block to which the control parameter determined as the second type belongs, wherein one of a split flag and a skip flag is classified under the first type, the split flag indicating whether or not the current block is partitioned into a plurality of blocks, and the skip flag indicating whether or not the current block is to be skipped, and wherein a residual flag is classified under the second type, the residual flag indicating whether or not luma coefficient data and chroma coefficient data are included in the current block.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 2.21667
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15143896', '15244336', '15699115', '14304274', '14837546']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.605421012889186
- 35 USC 102 Novelty (BERT): 0.5688969438624318
- Combined Prediction Score: 0.6017686059865106
- Mean Citation Score: 448.855222
- Max Citation Score: 454.76587
- Similarity Product: 440.08490369124536

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