PATENT CLAIM ANALYSIS

Application Number: 16210957
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["381", "303000"]

Abstract:
When compressing an HOA data frame representation, a gain control ( 15, 151 ) is applied for each channel signal before it is perceptually encoded ( 16 ). The gain values are transferred in a differential manner as side information. However, for starting decoding of such streamed compressed HOA data frame representation absolute gain values are required, which should be coded with a minimum number of bits. For determining such lowest integer number (β e ) of bits the HOA data frame representation (C(k)) is rendered in spatial domain to virtual loudspeaker signals lying on a unit sphere, followed by normalisation of the HOA data frame representation (C(k)). Then the lowest integer number of bits is set to β e =┌log 2 (┌log 2 (√{square root over ( K MAX )}·0)┐+1)┐.

Claim (Index 5):
An apparatus for decoding a compressed Higher Order Ambisonics (HOA) sound representation of a sound or sound field, the apparatus comprising:\n a processor configured to receive a bit stream containing the compressed HOA representation, wherein the bitstream includes information regarding a number of HOA coefficients corresponding to the compressed HOA representation, and wherein the processor is further configured to decode the compressed HOA representation based on a lowest integer number \u03b2 e , wherein the lowest integer number \u03b2 e  is determined based on\n \u03b2 e =\u250clog 2 (|log 2 (\u221a{square root over ( K MAX )}\u00b70)\u2510+ e MAX +1)\u2510, \n wherein K MAX =max 1\u2264N\u2264N MAX  K (N, \u03a9 1 (N) , . . . \u03a9 0 (N) ), N is an order of the compressed HOA representation, N MAX  is a maximum order of interest of the compressed HOA representation, \u03a9 1 (N) , . . . , \u03a9 0 (N) ) are directions of virtual loudspeakers, 0=(N+1) 2  is a number of HOA coefficient sequences, and K is a ratio between the squared Euclidean norm \u2225\u03a8\u2225 2 2  of a mode matrix and 0, wherein e MAX >0, wherein \u221a{square root over (K MAX )}=1.5.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 98.0
- Lexical Diversity: 1.74194
- Patent Class: 381.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15702471', '15319699', '16019288', '15702418', '15319707']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7141791317544015
- 35 USC 102 Novelty (BERT): 0.5371170515605577
- Combined Prediction Score: 0.6964729237350171
- Mean Citation Score: 361.625722
- Max Citation Score: 368.97568
- Similarity Product: 361.8946578780365

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