| 摘要 |
<p>An apparatus for efficiently determining the position of a nonzero signal in run-length coding is provided. A coding apparatus comprises a first storage means (110) for storing signals to which indexes are given in order to distinguish signals to be coded, a first index computing means (121) for computing a first index of a signal which is not zero out of the signals stored in the first storage means, a second index computing means (122) for computing a second index from a base index and the first index, a second index storage location search means (123) for searching for, according to the values of the indexes stored in a second storage means (110), the storage location of the second storage means in which the second index is to be stored, a second index storage means (124) for storing the second index in the second storage means according to the storage location searched for by the second index storage location search means, and a control means (130) for giving the base index to the second index computing means and operating the first index computing means, the second index computing means, the second index storage location search means, and the second index storage means.</p> |
