Abstract
In general techniques are described for compressing decomposed representations of a sound field. A device comprising one or more processors may be configured to perform the techniques. The one or more processors may be configured to obtain a bitstream comprising a compressed version of a spatial component of a sound field the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| Not Available | 27/03/2018 | ISLD-201806-033 | QUALCOMM INC | No | Family Member | ||||
| Not Available | 28/06/2018 | ISLD-201808-002 | QUALCOMM INC | No | Family Member | ||||
Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Signal Processing
Product
Use Cases
Mobile TV/ Radio
Services
Claim
1. A method comprising:', 'obtaining a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
2. The method of claim 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a field specifying a prediction mode used when compressing the spatial component.
3. The method of claim 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, Huffman table information specifying a Huffman table used when compressing the spatial component.
4. The method of claim 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a field indicating a value that expresses a quantization step size or a variable thereof used when', 'compressing the spatial component.
5. The method of claim 4, wherein the value comprises an nbits value.
6. The method of claim 4,', 'wherein the bitstream comprises a compressed version of a plurality of spatial components of the sound field of which the compressed version of the spatial component is included, and', 'wherein the value expresses the quantization step size or a variable thereof used when compressing the plurality of spatial components.
7. The method of claim 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a Huffman code to represent a category identifier that identifies a compression category to which the spatial component corresponds.
8. The method of claim 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a sign bit identifying whether the spatial component is a positive value or a negative value.
9. The method of claims 1, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a Huffman code to represent a residual value of the spatial component
10. The method of claim 1, wherein obtaining the bitstream comprises generating the bitstream with a bitstream generation device
11. The method of claim 1 , wherein obtaining the bitstream comprises obtaining the bitstream with a bitstream extraction device
12. The method of claim 1, wherein the vector based synthesis comprises a singular value decomposition
13. A device comprising :', 'one or more processors configured to obtain a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients
14. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a field specifying a prediction mode used when compressing the spatial component
15. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, Huffman table information specifying a Huffman table used when compressing the spatial component
16. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a field indicating a
value that expresses a quantization step size or a variable thereof used when', 'compressing the spatial component
17. The device of claim 16, wherein the value comprises an nbits value
18. The device of claim 16,', 'wherein the bitstream comprises a compressed version of a plurality of spatial components of the sound field of which the compressed version of the spatial component is included, and', 'wherein the value expresses the quantization step size or a variable thereof used when compressing the plurality of spatial components
19. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a Huffman code to represent a category identifier that identifies a compression category to which the spatial component corresponds.
20. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a sign bit identifying whether the spatial component is a positive value or a negative value.
21. The device of claim 13, wherein the compressed version of the spatial component is represented in the bitstream using, at least in part, a Huffman code to represent a residual value of the spatial component.
22. The device of claim 13, wherein the device comprises an audio encoding device a bitstream generation device.
23. The device of claim 13, wherein the device comprises an audio decoding device.
24. The device of claim 13, wherein the vector based synthesis comprises a singular value decomposition.', 'A device comprising
means for obtaining a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients; and', 'means for storing the bitstream.
26. A non-transitory computer-readable storage medium having stored thereon instructions that when executed cause one or more processors to obtain a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
27. A method comprising:', 'generating a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
28. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include a field specifying a prediction mode used when compressing the spatial component.
29. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include Huffman table information specifying a Huffman table used when compressing the spatial component.
30. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include a field indicating a value that expresses a quantization step size or a variable thereof used when compressing the spatial component.
31. The method of claim 30, wherein the value comprises an nbits value.
32. The method of claim 30,', 'wherein generating the bitstream comprises generating the bitstream to include a compressed version of a plurality of spatial components of the sound field of which the compressed version of the spatial component is included, and
wherein the value expresses the quantization step size or a variable thereof used when compressing the plurality of spatial components.
33. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include a Huffman code to represent a category identifier that identifies a compression category to which the spatial component corresponds.
34. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include a sign bit identifying whether the spatial component is a positive value or a negative value.
35. The method of claim 27, wherein generating the bitstream comprises generating the bitstream to include a Huffman code to represent a residual value of the spatial component.
36. The method of claim 27, wherein the vector based synthesis comprises a singular value decomposition.
37. A device comprising:', 'one or more processors configured to generate a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.
38. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include a field specifying a prediction mode used when compressing the spatial component.
39. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include Huffman table information specifying a Huffman table used when compressing the spatial component.
40. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include a field indicating a value that expresses a quantization step size or a variable thereof used when compressing the spatial component.
41. The device of claim 40, wherein the value comprises an nbits value.
42. The device of claim 40,', 'wherein the one or more processors are configured to generate the bitstream to include a compressed version of a plurality of spatial components of the sound field of which the compressed version of the spatial component is included, and', 'wherein the value expresses the quantization step size or a variable thereof used when compressing the plurality of spatial components.
43. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include a Huffman code to represent a category identifier that identifies a compression category to which the spatial component corresponds.
44. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include a sign bit identifying whether the spatial component is a positive value or a negative value.
45. The device of claim 37, wherein the one or more processors are configured to generate the bitstream to include a Huffman code to represent a residual value of the spatial component.
46. The device of claim 37, wherein the vector based synthesis comprises a singular value decomposition.
47. A device comprising:', 'means for generating a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients; and', 'means for storing the bitstream.
48. A non-transitory computer-readable storage medium comprising instructions that when executed cause one or more processors to:', 'generate a bitstream comprising a compressed version of a spatial component of a sound field, the spatial component generated by performing a vector based synthesis with respect to a plurality of spherical harmonic coefficients.']
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SUMMARY
ClaimChart-WO2014194110A1-STO
Patent number:WO2014194110A1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.