MODEL BASED PREDICTION IN A CRITICALLY SAMPLED FILTERBANK

    公开(公告)号:EP3648104A1

    公开(公告)日:2020-05-06

    申请号:EP19208681.7

    申请日:2014-01-07

    Inventor: VILLEMOES, Lars

    Abstract: The present document relates to audio source coding systems. In particular, the present document relates to audio source coding systems which make use of linear prediction in combination with a filterbank. A method for estimating a first sample (615) of a first subband signal in a first subband of an audio signal is described. The first subband signal of the audio signal is determined using an analysis filterbank (612) comprising a plurality of analysis filters which provide a plurality of subband signals in a plurality of subbands from the audio signal, respectively. The method comprises determining a model parameter (613) of a signal model; determining a prediction coefficient to be applied to a previous sample (614) of a first decoded subband signals derived from the first subband signal, based on the signal model, based on the model parameter (613) and based on the analysis filterbank (612); wherein a time slot of the previous sample (614) is prior to a time slot of the first sample (615); and determining an estimate of the first sample (615) by applying the prediction coefficient to the previous sample (614).

    INSPECTION METHOD AND APPARATUS FOR DATA PROCESSING CIRCUIT, AND ELECTRONIC DEVICE

    公开(公告)号:EP4322044A1

    公开(公告)日:2024-02-14

    申请号:EP22836029.3

    申请日:2022-08-04

    Inventor: WU, Zengquan

    Abstract: The disclosure provides a method and an apparatus for checking a data processing circuit, and an electronic device. Performance check files of a plurality of timing sequence logic elements in the data processing circuit are acquired, and the data processing circuit is simulated based on the performance check files of the plurality of timing sequence logic elements, so as to obtain timing sequence information of the respective timing sequence logic elements. Therefore, the disclosure can check the timing sequence of the data processing circuit, which prevents the data processing circuit from failing to pass Command Bus Training (CBT), a relevant regulation check, etc. due to a great difference in timing sequence information, ensures that the data processing circuit can correctly process a signal, and improves the effectiveness of the data processing circuit during designing and using.

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