PATENT CLAIM ANALYSIS

Application Number: 16153307
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
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 1):
A decoder for decoding information from a datastream to reconstruct a picture, which is partitioned into slices, the decoder comprising:\n an entropy decoder configured to entropy decode, using a processor, the slices based on wavefront parallel processing (WPP) in which a current slice of the slices is entropy decoded according to one of at least two modes indicated by a syntax element portion within the current slice, wherein the entropy decoder is configured to:\n in accordance with a first of the at least two modes, decode data related to the current slice from the datastream using context adaptive entropy decoding to obtain a residual signal, which comprises a derivation of contexts across slice boundaries and an initialization of the symbol probabilities depending on saved states of symbol probabilities of a previously decoded slice, \n in accordance with a second of the at least two modes, decode data related to the current slice from the datastream using context adaptive entropy decoding to obtain a residual signal, which comprises restricting the derivation of the contexts so as to not cross the slice boundaries and an initialization of the symbol probabilities independent on a previously decoded slice, and \n save symbol probabilities as acquired in context adaptive entropy decoding the previously decoded slice up to a certain coding block in a row in accordance with a raster scan order; \n a predictor configured to generate, using the processor, a prediction signal based on prediction parameters related to the current slice from the datastream; and a reconstruction module configured to reconstruct, using the processor, a portion of the picture related to the current slice based on the residual signal and the prediction signal.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 97.0
- Lexical Diversity: 1.60256
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14511200', '14334789', '13841253', '16123184', '14753144']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5387752767271167
- 35 USC 102 Novelty (BERT): 0.7320898853964324
- Combined Prediction Score: 0.5581067375940483
- Mean Citation Score: 486.2267559999999
- Max Citation Score: 828.7837
- Similarity Product: 790.9289719384433

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