Multicasting transmission of multimedia information
First Claim
1. A multicasting system for reception of multimedia information, said system comprising:
- a content switch coupled to a multimedia content source;
said multimedia content source including a plurality N of multimedia contents, each said multimedia content being supported by a primary primary_bit_rate multimedia stream transmitted over a primary dedicated channel having a primary bandwidth;
N being an integer;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary_bit_rate multimedia stream transmitted at a primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary_bit_rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary_bit rate secondary multimedia sub-stream has a K-th low bit rate, and at least one multimedia smart terminal, each said multimedia smart terminal configured to receive from said content switch over a network each said multimedia content as a secondary multimedia stream transmitted over a secondary channel having a secondary bandwidth.
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Accused Products
Abstract
A multicasting system for reception of multimedia information comprising: a content switch coupled to a multimedia content source and at least one multimedia smart terminal. The multimedia content source includes a plurality of multimedia contents, wherein each multimedia content is supported by a primary multimedia stream transmitted over a primary dedicated channel having a primary bandwidth. At least one multimedia smart terminal is configured to receive from the content switch over a network each multimedia content as a secondary multimedia stream transmitted over a secondary channel having a secondary bandwidth. The content switch includes a bandwidth scaler configured to scale each primary multimedia stream to a plurality of secondary multimedia sub-streams that are substantially synchronized. The multimedia smart terminal includes a smart terminal sub-stream switch configured to switch among the plurality of secondary multimedia sub-streams in order to select a substantially optimum secondary multimedia sub-stream. The substantially optimum secondary multimedia sub-stream includes a substantially optimum relationship between an error rate level determined at the time of reception of a multimedia content and the quality of reception of a multimedia content.
272 Citations
41 Claims
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1. A multicasting system for reception of multimedia information, said system comprising:
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a content switch coupled to a multimedia content source;
said multimedia content source including a plurality N of multimedia contents, each said multimedia content being supported by a primary primary_bit_rate multimedia stream transmitted over a primary dedicated channel having a primary bandwidth;
N being an integer;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary_bit_rate multimedia stream transmitted at a primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary_bit_rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary_bit rate secondary multimedia sub-stream has a K-th low bit rate, and at least one multimedia smart terminal, each said multimedia smart terminal configured to receive from said content switch over a network each said multimedia content as a secondary multimedia stream transmitted over a secondary channel having a secondary bandwidth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a multicasting transmission system, wherein a multimedia content source includes a plurality N of multimedia contents, N is an integer, wherein a content switch is coupled to said multimedia content source, and wherein said content switch receives each said multimedia content as a primary multimedia stream transmitted at a primary high bit rate over a primary dedicated channel having a primary bandwidth, wherein said content switch further includes a bandwidth scaler configured to scale each said received primary primary_bit_rate multimedia stream into a plurality K of secondary_bit_rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary multimedia sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary multimedia sub-stream is substantially synchronized to one said primary primary_bit_rate multimedia stream;
- a multimedia smart terminal configured to receive from said content switch over a network at least one multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth, said multimedia smart terminal further comprises;
a smart terminal sub-stream switch configured to switch between said plurality K of secondary_bit_rate secondary multimedia sub-streams in order to select a substantially optimum secondary_bit_rate secondary multimedia sub-stream having a substantially optimum low bit rate;
wherein said substantially optimum secondary_bit_rate secondary multimedia sub-stream includes a substantially optimum relationship between an error rate level determined at the time of reception of said substantially optimum secondary_bit_rate secondary multimedia sub-stream and the quality of reception of a multimedia content supported by said substantially optimum secondary_bit_rate secondary multimedia sub-stream. - View Dependent Claims (14, 15, 16)
- a multimedia smart terminal configured to receive from said content switch over a network at least one multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth, said multimedia smart terminal further comprises;
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17. In a multicasting transmission system, wherein a multimedia content source includes a plurality N of multimedia contents, N is an integer:
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a content switch coupled to said multimedia content source;
wherein said content switch is configured to receive each said multimedia content as a primary multimedia stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth, and wherein said content switch is configured to transmit to at least one multimedia smart terminal over a network at least one multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary_bit_rate multimedia stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth into a plurality K of secondary_bit_rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary multimedia sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary multimedia sub-stream is substantially synchronized to one said primary primary_bit_rate multimedia stream.
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18. A video multicasting system for reception of video information, said system comprising:
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a content switch coupled to a video content source;
said video content source including a plurality N of video contents, each said video content being supported by a primary primary bit rate video stream transmitted over a primary dedicated channel having a primary bandwidth;
N being an integer;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary_bit_rate video stream transmitted at a primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary bit_rate secondary video sub-streams, K being an integer, wherein a first secondary_bit_rate secondary video sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary video sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary video sub-stream has a K-th low bit rate, and wherein said plurality K of secondary_bit_rate secondary video sub-streams are substantially synchronized; and
at least one video smart terminal, each said video smart terminal configured to receive from said content switch over a network each said video content as a secondary video stream transmitted over a secondary channel having a secondary bandwidth.
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19. In a video multicasting transmission system, wherein a video content source includes a plurality N of video contents, N is an integer, wherein a content switch is coupled to said video content source, and wherein said content switch receives each said video content as a primary video stream transmitted at a primary high bit rate over a primary dedicated channel having a primary bandwidth, wherein said content switch further includes a bandwidth scaler configured to scale each said received primary primary_bit_rate video stream into a plurality K of secondary_bit_rate secondary video sub-streams, K being an integer, wherein a first secondary_bit_rate secondary video sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary video sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary video sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary video sub-stream is substantially synchronized to one said primary primary bit rate video stream;
- a video smart terminal configured to receive from said content switch over a network at least one video content as a secondary video stream transmitted over a secondary channel having a secondary bandwidth, said video smart terminal further comprises;
a video smart terminal sub-stream switch configured to switch between said plurality K of secondary_bit_rate secondary video sub-streams in order to select a substantially optimum secondary_bit_rate secondary video sub-stream having a substantially optimum low bit rate;
wherein said substantially optimum secondary_bit_rate secondary video sub-stream includes a substantially optimum relationship between an error rate level determined at the time of reception of said substantially optimum secondary_bit_rate secondary video sub-stream and the quality of reception of a video content transmitted by said substantially optimum secondary_bit_rate secondary video sub-stream. - View Dependent Claims (20, 21, 22, 23, 24)
- a video smart terminal configured to receive from said content switch over a network at least one video content as a secondary video stream transmitted over a secondary channel having a secondary bandwidth, said video smart terminal further comprises;
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25. In a multicasting transmission system, wherein a video content source includes a plurality N of video contents, N is an integer:
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a content switch coupled to said video content source;
wherein said content switch is configured to receive each said video content as a primary video stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth;
and wherein said content switch is configured to transmit to at least one video smart terminal over a network at least one video content as a secondary video stream transmitted over a secondary channel having a secondary bandwidth;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary bit rate video stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth into a plurality K of secondary_bit_rate secondary video sub-streams, K being an integer, wherein a first secondary_bit_rate secondary video sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary video sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary video sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary video sub-stream is substantially synchronized to one said primary primary_bit_rate video stream.
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26. A video &
- audio multicasting system for reception of video&
audio information, said system comprising;
a content switch coupled to a video &
audio content source;
wherein said video&
audio content source includes a plurality N of video&
audio contents, wherein each said audio content source is substantially synchronized with one said video&
audio content source; and
wherein said content switch receives each said video&
audio content as a primary video &
audio stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth;
said content switch further including;
a bandwidth scaler configured to scale each said primary primary_bit_rate video&
audio stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth into a plurality K of secondary_bit_rate secondary video&
audio sub-streams, K being an integer, wherein a first secondary bit rate secondary video&
audio sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary video&
audio sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary video&
audio sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary video&
audio sub-stream is substantially synchronized to one said primary primary_bit_rate video&
audio stream; and
at least one video smart terminal, each said video smart terminal configured to receive from said content switch over a network each said video content as a secondary video stream transmitted over a secondary video downlink channel having a secondary video downlink bandwidth; and
at least one audio smart terminal, each said audio smart terminal configured to receive from said content switch over a network each said audio content substantially synchronized with one said video content as a secondary audio stream transmitted over a secondary audio duplex channel having an audio downlink bandwidth and having an audio uplink bandwidth.
- audio multicasting system for reception of video&
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27. A method of multicasting reception of multimedia information, said method comprising the steps of:
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receiving a plurality N of multimedia contents provided by a multimedia content source by using a content switch coupled to said multimedia content source, wherein each said multimedia content is received as a primary multimedia stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth;
N being an integer;
transmitting over a network each said multimedia content by using said content switch;
wherein each said multimedia content is transmitted as a multimedia stream over a secondary channel having a secondary bandwidth; and
receiving over said network each said multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth by at least one multimedia smart terminal. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. In a multicasting transmission system, wherein a multimedia content source includes a plurality N of multimedia contents, N is an integer, wherein a content switch is coupled to said multimedia content source, and wherein said content switch receives each said multimedia content as a primary multimedia stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth;
- a method of receiving from said content switch over a network at least one multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth using a receiving multimedia smart terminal further comprising a receiving device and a smart terminal content switch;
said method comprising the steps of;
receiving said plurality N of multimedia contents from said content switch over said network using said receiving device; and
switching between said plurality N of available multimedia contents using said smart terminal content switch. - View Dependent Claims (36)
- a method of receiving from said content switch over a network at least one multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth using a receiving multimedia smart terminal further comprising a receiving device and a smart terminal content switch;
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37. A multicasting system for wireless reception of multimedia information, said system comprising:
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a content switch coupled to a multimedia content source;
wherein said multimedia content source includes a plurality N of multimedia contents, N being an integer, and wherein said content switch receives each said multimedia content over a first wireless network as a primary multimedia stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth; and
at least one multimedia smart terminal, each said multimedia smart terminal configured to receive from said content switch over a wireless network each said multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth;
wherein said content switch further includes;
a bandwidth scaler configured to scale each said primary primary_bit_rate multimedia stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary bit rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary bit rate secondary multimedia sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary multimedia sub-stream is substantially synchronized to one said primary primary_bit_rate multimedia stream;
and wherein at least one said multimedia smart terminal further includes;
a smart terminal sub-stream switch configured to switch between said plurality K of secondary_bit_rate secondary multimedia sub-streams in order to substantially minimize an error rate level determined at the time of reception of each said secondary_bit_rate secondary multimedia sub-stream.
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38. A multicasting system for reception of real-time multimedia information, said system comprising:
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a content switch coupled to a multimedia content source;
wherein said multimedia content source includes a plurality N of multimedia contents, N being an integer, and wherein said content switch receives each said multimedia content as a primary multimedia stream transmitted at a primary bit rate over a primary dedicated channel having a primary bandwidth; and
at least one multimedia smart terminal, each said multimedia smart terminal configured to receive from said content switch over a network each said multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth;
wherein said content switch further includes;
a bandwidth scaler configured to scale each said primary primary_bit_rate multimedia stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary_bit_rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary bit_rate secondary multimedia sub-stream has a K-th low bit rate, and wherein each said secondary_bit_rate secondary multimedia sub-stream is substantially synchronized to one said primary primary_bit_rate multimedia stream;
and wherein at least one said multimedia smart terminal further includes;
a smart terminal sub-stream switch configured to switch between said plurality K of secondary_bit_rate secondary multimedia sub-streams in order to substantially minimize an error rate level determined at the time of reception of each said secondary_bit_rate secondary multimedia sub-stream.
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39. A multicasting system for reception of multimedia information from a multimedia content source including a plurality N of multimedia contents, N being an integer;
- said system comprising;
a content switch means for receiving each said multimedia content transmitted as a primary multimedia stream at a primary bit rate over a primary dedicated channel having a primary bandwidth; and
at least one multimedia smart terminal means for receiving from said content switch over a network each said multimedia content as a multimedia stream transmitted over a secondary channel having a secondary bandwidth;
wherein said content switch means further includes;
a bandwidth scaling means for scaling each said primary primary_bit_rate multimedia stream transmitted at one said primary high bit rate over one said primary dedicated channel having one said primary bandwidth to a plurality K of secondary_bit rate secondary multimedia sub-streams, K being an integer, wherein a first secondary_bit_rate secondary multimedia sub-stream has a first low bit rate, wherein a second secondary_bit_rate secondary multimedia sub-stream has a second low bit rate, and wherein a K-th secondary_bit_rate secondary multimedia sub-stream has a K-th low bit rate, and wherein said plurality K of secondary_bit_rate secondary multimedia sub-streams is substantially synchronized. - View Dependent Claims (40, 41)
- said system comprising;
Specification