DECODING DEVICE, ENCODING DEVICE, AND CODING SYSTEM
First Claim
1. A decoding device that performs data reproduction by performing error correction of predicted data using coded data which is an error correction code generated based on original data, the decoding device comprising:
- a coded data receiver that receives a signal including transmitted coded data;
a prediction value generating part that generates predicted data;
a preset value generating/updating part that performs a process for generating or updating a preset value indicating a degree of reliability of error correction;
a decoding part that performs a decoding process based on the preset value and the predicted data, and the coded data; and
an addition request determining part that performs a process for determining whether or not there is a need to request additional coded data based on a result of the decoding process of the decoding part,wherein the preset value generating/updating part performs the process for updating the preset value based on a result of a previous decoding process if the decoding part determines to perform a decoding process with the additional coded data.
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Accused Products
Abstract
A decoding device is provided, which can minimize the number of coded data addition requests by the decoding device, reduce processing time to prevent delay, and minimize frame rate reduction. The decoding device performs data reproduction by performing error correction of data of a predicted image using coded data which is an error correction code generated based on original data. The decoding device includes a coded bit receiving part, a preset value generating/updating part, a decoding part that performs a decoding process based on a preset value or a predicted value, and coded bits, and a bit addition request determining part that determines whether or not there is a need to request additional coded bits from decoding process results from the decoder. When it is determined to perform a decoding process with additional coded data, the preset value generating/updating part updates the preset value based on previous decoding process results.
22 Citations
15 Claims
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1. A decoding device that performs data reproduction by performing error correction of predicted data using coded data which is an error correction code generated based on original data, the decoding device comprising:
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a coded data receiver that receives a signal including transmitted coded data; a prediction value generating part that generates predicted data; a preset value generating/updating part that performs a process for generating or updating a preset value indicating a degree of reliability of error correction; a decoding part that performs a decoding process based on the preset value and the predicted data, and the coded data; and an addition request determining part that performs a process for determining whether or not there is a need to request additional coded data based on a result of the decoding process of the decoding part, wherein the preset value generating/updating part performs the process for updating the preset value based on a result of a previous decoding process if the decoding part determines to perform a decoding process with the additional coded data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12, 13, 14, 15)
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8. An encoding device comprising:
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an encoding part that performs a process for generating coded data which is an error correction code based on original data; a coded data transmitting part that performs a process for transmitting a signal including part of the coded data to a decoding device and transmitting a signal including additional coded data based on an addition request from the decoding device; an error code generator that performs a process for generating an error correction code for error detection different from the coded data or an error detection code based on the original data; and an error code transmitting part that performs a process for transmitting the error correction code for error detection different from the coded data or the error detection code generated by the error code generator. - View Dependent Claims (9, 10, 11)
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Specification