Patent ID: 9698817
Date: 2017-07-04
CPC Classifications: H03M

Claim:
1. A data compression apparatus comprising: a first compressor configured to generate a first compression signal through up-down sampling an input signal; and a converter configured to convert the first compression signal into a first m bit long binary signal; and a second compressor configured to generate a m-n bit long binary signal through partial bit sampling the first m bit long binary signal by eliminating n number of least significant bits (LSBs) from the first m bit long binary signal and by assigning correspondingly values of most significant bits (MSBs) from the first m-bit long binary signal into MSBs of the m-n bit long binary signal, wherein m>n and m and n are integers, wherein a total compression rate by both the first compressor and the converter is equal to an Up-down sampling factor×(n/m)×100.