Noise shaper circuit
US5281969A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Apr 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3028
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
According to this invention, a noise shaper circuit capable of realizing an integrated circuit having a small chip area is provided. In calculating circuits for calculating input data represented by a twos complement and feedback data of output data converted into data having a small word length, the input data is divided into upper bits and lower bits with respect to a bit rounded off during a word length converting operation, only the upper bits are used in a calculation, and the calculation result and the lower bits which are not used in the calculation are added to the LSB of the calculation result again, and the resultant data is output to the next stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.