USE OF FINE GRANULAR SCALABILITY WITH HIERARCHICAL MODULATION
First Claim
1. A method of generating a carrier wave signal using a hierarchical modulation mode, the hierarchical modulation mode being configured to convey a high priority stream and a low priority stream, comprising:
- encoding a first media signal to a first media bitstream comprising at least two layers,wherein;
a first layer and a first portion of a second layer are configured for transmission within the high priority stream; and
a second portion of the second layer is configured for transmission within the low priority stream.
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Accused Products
Abstract
A system and method of hierarchical modulation in scalable media is provided, where the HP bits of a constellation pattern of a hierarchical modulation mode are allocated for an entire base layer of a scalable stream and at least some data from a fine-granular scalable (FGS) enhancement layer. The LP bits of the constellation pattern can be used for the remaining data of the FGS layer. Concatenation of the FGS data in the HP bits and in the LP bits provides a valid FGS layer. Therefore, problems associated with redundant data padding resulting in inefficient resource utilization, increased complexity related to accurate bitrate control algorithms, time-varying picture quality, and maintaining identical bitrate shares between base and enhancement layers and HP and LP bits, are avoided.
44 Citations
34 Claims
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1. A method of generating a carrier wave signal using a hierarchical modulation mode, the hierarchical modulation mode being configured to convey a high priority stream and a low priority stream, comprising:
encoding a first media signal to a first media bitstream comprising at least two layers,wherein; a first layer and a first portion of a second layer are configured for transmission within the high priority stream; and a second portion of the second layer is configured for transmission within the low priority stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An encoding apparatus, comprising:
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a processor; and a memory unit communicatively connected to the processor and including; computer code for encoding a first media signal to a first media bitstream comprising at least two layers, wherein; a first layer and a first portion of a second layer are configured for transmission within a high priority stream; and a second portion of the second layer is configured for transmission within the low priority stream, wherein the high priority stream and the low priority stream are to be conveyed by a carrier wave signal generated using a hierarchical modulation mode. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of receiving a carrier wave signal generated using a hierarchical modulation mode, the hierarchical modulation mode being configured to convey a high priority stream and a low priority stream, comprising:
decoding a first media bitstream comprising at least two layers from a first media signal, wherein; a first layer and a first portion of a second layer are decoded from the high priority stream; and a second portion of the second layer is decoded from the low priority stream. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A decoding apparatus, comprising:
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a processor; and a memory unit communicatively connected to the processor and including; computer code for decoding a first media bitstream comprising at least two layers from a first media signal, wherein; a first layer and a first portion of a second layer are decoded from the high priority stream; and a second portion of the second layer is decoded from the low priority stream, wherein the high priority stream and the low priority stream have been conveyed by a carrier wave signal generated using a hierarchical modulation mode. - View Dependent Claims (25, 26, 27, 28)
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29. A system for generating a carrier wave signal, comprising:
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a hierarchical modulator configured to convey a high priority stream and a low priority stream; and an encoder configured to encode a first media signal to a first media bitstream comprising at least two layers, wherein; a first layer and a first portion of a second layer are configured for transmission within the high priority stream; and a second portion of the second layer is configured for transmission within the low priority stream. - View Dependent Claims (30, 31)
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32. A carrier wave signal modified according to a hierarchical modulation mode, the hierarchical modulation mode being configured to convey a high priority stream and a low priority stream, comprising:
a first media signal encoded to a first media bitstream comprising at least two layers, wherein; a first layer and a first portion of a second layer are configured for transmission within the high priority stream; and a second portion of the second layer is configured for transmission within the low priority stream. - View Dependent Claims (33, 34)
Specification