Multimedia processing system and method of operating the same
First Claim
1. A multimedia processing system comprising:
- a plurality of first units including a central processing unit (CPU) and a top domain;
a storage domain configured to store a plurality of multimedia data;
a multimedia codec domain configured to decode segments of target multimedia data received from the storage domain and to output decoded segments according to control of the CPU;
a system bus configured to connect the plurality of first units, the storage domain, and the multimedia codec domain with one another; and
an alive domain configured to control power supply to the plurality of first units, the storage domain, the multimedia codec domain, and the system bus, the alive domain including a user interface configured to receive an input signal from a user,wherein the multimedia processing system is configured such that while the multimedia codec domain is performing a decoding operation, the plurality of first units and the system bus are switched to a low-power mode.
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Accused Products
Abstract
The multimedia processing system includes a plurality of first units including a CPU and a top domain; a storage domain configured to store a plurality of multimedia data; a multimedia codec domain configured to decode segments of target multimedia data received from the storage domain and to output decoded segments according to control of the CPU or the top domain; a system bus configured to connect the plurality of first units, the storage domain, and the multimedia codec domain with one another; and an alive domain configured to control power supply to the plurality of first units, the storage domain, the multimedia codec domain, and the system bus and to receive a signal from a user.
11 Citations
18 Claims
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1. A multimedia processing system comprising:
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a plurality of first units including a central processing unit (CPU) and a top domain; a storage domain configured to store a plurality of multimedia data; a multimedia codec domain configured to decode segments of target multimedia data received from the storage domain and to output decoded segments according to control of the CPU; a system bus configured to connect the plurality of first units, the storage domain, and the multimedia codec domain with one another; and an alive domain configured to control power supply to the plurality of first units, the storage domain, the multimedia codec domain, and the system bus, the alive domain including a user interface configured to receive an input signal from a user, wherein the multimedia processing system is configured such that while the multimedia codec domain is performing a decoding operation, the plurality of first units and the system bus are switched to a low-power mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a multimedia processing system including a multimedia codec domain, a central processing unit (CPU), a top domain, a storage domain, and a system bus, the method comprising:
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receiving, at the CPU, an input signal corresponding to a play start request for target multimedia data; accessing, at the top domain, the storage domain; transmitting, from the top domain, segments of the target multimedia data to the multimedia codec domain in response to control signals from the CPU; decoding, at the multimedia codec domain, the segments and outputting decoded segments; and repeating the receiving, accessing and decoding operations until the multimedia codec domain decodes a last segment of the target multimedia data or a play end request is received, wherein the CPU, the top domain, and the system bus are switched to a low-power mode while the multimedia codec domain is decoding the segments. - View Dependent Claims (12, 13, 14, 15)
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16. A multimedia processing system comprising:
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a central processing unit (CPU); a storage domain configured to store multimedia data; a multimedia codec domain configured to decode segments of the multimedia data received from the storage domain and to output decoded segments in response to control signals from the CPU; a system bus configured to connect the CPU, the storage domain, and the multimedia codec domain with one another; and wherein the multimedia processing system is configured such that when the multimedia codec domain performs a decoding operation, the multimedia processing system switches the CPU and the system bus from a first power mode to a second power mode lower than the first power mode, and when the multimedia codec domain accesses the multimedia data stored in the storage domain during the decoding operation, the multimedia processing system switches the system bus from the second power mode to a power mode higher than the second power mode without waking up the CPU, and the multimedia codec domain is configured to access the multimedia data stored in the storage domain via the system bus. - View Dependent Claims (17, 18)
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Specification