Patent ID: 11870467
Assignee: CANAAN BRIGHT SIGHT CO., LTD
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A data compression device, comprising: an obtaining unit, a comparing unit, a preprocessing unit and an encoding unit, wherein:
the obtaining unit is configured to obtain a plurality of values of a parameter and respective occurrence probabilities of the plurality of values;
the comparing unit is configured to compare the respective occurrence probabilities obtained by the obtaining unit with a predetermined threshold, to determine, from the plurality of values obtained from the obtaining unit, a first set of values with the respective occurrence probabilities less than the predetermined threshold and a second set of values with the respective occurrence probabilities greater than or equal to the predetermined threshold;
the preprocessing unit is configured to preprocess the first set of values obtained from the comparing unit; and
the encoding unit is configured to encode the second set of values obtained from the comparing unit and the first set of values preprocessed by the preprocessing unit,
wherein the preprocessing unit is configured to reset the respective occurrence probabilities of the first set of values so that: a sum of the reset respective occurrence probabilities of the first set of values is no greater than a second minimum value in the second set of values, and the first set of values can form a balanced binary tree.