Apparatus and method for data transmission
AssigneeKabushiki Kaisha Toshiba
InventorHajime Oosawa
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Abstract
A data transmission apparatus for transmitting data comprising a plurality of objects having respective priority, comprises an error-correction coding section for selecting an error-correction coding method for each of the plurality of objects based on the priority of each of the plurality of objects and error-correction coding of each of the plurality of objects using the selected error-correction coding method. Therefore, it is possible to effectively use the resources, maintain the real-time transmission of data, and prevent degradation of transmitted data by changing the level of the error-correction according to the priority of object, and performing the error-correction coding for the objects according to the priority.
Claims20
A data transmission apparatus for transmitting multi-media data comprising kinds of data having respective priority, the apparatus comprising:
- means for selecting an error-correction coding method for each of the kinds of data based on the priority of each of the kinds;
- means for error-correction coding of each of the kinds of data using the selected error-correction coding method;
- and
- means for multiplexing plurality of coded data and transmitting multiplexed data through a transmission channel,
- wherein the error-correction coding method is based on a plural-time transmission method and said selecting means determines the number of times of transmission in the plural-time transmission method based on the priority.
A data reception apparatus for receiving coded transmission multi-media data comprising kinds of coded data, each kind having a priority, the apparatus comprising:
- means for receiving and demultiplexing the coded transmission data into the kinds of coded data;
- means for detecting the priority of each kind;
- and
- means for error-correction decoding of each of the kinds of the coded data based on the priority detected by said detecting means,
- wherein the coded transmission data is based on a plural-time transmission coding method and said error-correction decoding means determines a value of the coded data using a majority method based on the priority.
A data transmission method for transmitting multi-media data comprising kinds of data having respective priority, the method comprising the following steps of:
- selecting an error-correction coding method for each of the kinds of data based on the priority;
- error-correction coding of each of the kinds of data using the selected error-correction coding method;
- and
- multiplexing plurality of kinds of coded data and transmitting multiplexed data through a transmission channel, wherein the error-correction coding method is based on a plural-time transmission method and said selecting step determines the number of times of transmission in the plural-time transmission method based on the priority.
A data reception method for receiving coded transmission data comprising kinds of coded data, each having a priority, the method comprising the following steps of:
- receiving and demultiplexing the coded transmission data into the kinds of coded data;
- detecting the priority of each kind of coded data;
- and
- error-correction decoding of each of the kinds of the coded data based on the priority detected by said detecting step,
- wherein the coded transmission data is based on a plural-time transmission coding method and said error-correction decoding step determines a value of the coded data using a majority method based on the priority.
Dependencies are inferred from the claim text.