Method and apparatus for frequency modulation synthesis
US6011448A · kind A · utility
3Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2250/475
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method for frequency modulation synthesis and apparatus for performing the method. The method uses additions rather than multiplies and therefore saves the space and cost of multipliers in circuit implementations. The method saves further resources by using the coordinate rotation digital computer (CORDIC) algorithm to acquire sine values as opposed to an extensive sine look-up table. The method can be implemented with either a dedicated digital circuit or a programmed special purpose processor such as a digital signal processor. The hardware for implementing the method is normally integrated onto a semiconductor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.