PATENT CLAIM ANALYSIS

Application Number: 16514052
Application Type: Utility
Filing Date: 2019-07
Publication Date: 2019-11
Patent Classification: ["375", "240020"]

Abstract:
Parallel processing concepts such as wavefront parallel processing, are realized with a reduced end-to-end delay by giving up the usual slice concept according to which slices are either coded/decoded completely independent from areas of the picture outside of the respective slice, or at least independent from areas outside the respective slice as far as the entropy coding is concerned, namely in favor of slices of different modes, namely ones called dependent slices which allow for interdependencies across slice boundaries, and others which do not, called normal slices, for example. Combined with the aspect or not, WPP processing concept is made more efficiently by using the slices' start syntax portions to locate WPP entry points.

Claim (Index 12):
An encoder for encoding picture into a datastream, wherein the picture is partitioned into slices, the encoder comprising:\n a residual module configured to generate, using a processor, a residual signal related to a current slice of the slices of the picture; a predictor configured to generate, using the processor, prediction parameters based on a prediction signal, wherein the prediction parameters are encoded into the datastream; and an entropy encoder configured to entropy encode, using the processor into the datastream, the slices based on wavefront parallel processing (WPP) in which the residual signal related to the current slice is entropy encoded according to one of at least two modes, wherein the entropy encoder is configured to: if the current slice is to be coded in accordance with a first mode of the at least two modes,\n encode the residual signal using context adaptive entropy encoding including deriving contexts across slice boundaries and initializing a symbol probability associated with the current slice depending on a saved state of the symbol probability of a previously encoded slice, wherein, in initializing the symbol probability associated with the current slice in accordance with the first mode, the entropy encoder is configured to: \n responsive to a determination that a first coding block associated with the current slice is the first coding block in a first row of the picture in accordance with a raster scan order, initialize the symbol probability associated with the current slice depending on the saved symbol probability as acquired in context adaptive entropy encoding the previously encoded slice up to the second coding block in a second row associated with the previously encoded slice in accordance with the raster scan order, and \n if the current slice is to be coded in accordance with a second mode of the at least two modes,\n encode the residual signal using context adaptive entropy encoding with restricting the derivation of the contexts so as to not cross the slice boundaries and initializing the symbol probabilities independent on any previously encoded slice, and \n save the symbol probability as acquired in context adaptive entropy encoding the previously encoded slice up to the second coding block in the second row associated with the previously encoded slice in accordance with the raster scan order.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 100.0
- Lexical Diversity: 1.60256
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16153307', '14511200', '14334789', '13841253', '16123184']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5648296672507104
- 35 USC 102 Novelty (BERT): 0.7166430592056402
- Combined Prediction Score: 0.5800110064462034
- Mean Citation Score: 567.31059
- Max Citation Score: 825.00275
- Similarity Product: 764.308172051221

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