Alfred Fettweis

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Bochum, DE

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Patents Grantslast 30 patents

Information Patent Grant
Multi-dimensional digital filter having adders, multipliers and shi...
- Patent number 4,866,649
- Issue date Sep 12, 1989
- Siemens Aktiengesellschaft
- Alfred Fettweis
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Filter for electric signals consisting of switches, capacitors and...
- Patent number 4,356,464
- Issue date Oct 26, 1982
- Siemens Aktiengesellschaft
- Alfred Fettweis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for frequency division multiplex system
- Patent number 4,326,288
- Issue date Apr 20, 1982
- Siemens Aktiengesellschaft
- Alfred Fettweis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE