Willem H. Groeneweg

Person

Ottenbach, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Sine wave deflection circuit for bidirectional scanning of a cathod...
- Patent number 4,634,940
- Issue date Jan 6, 1987
- RCA Corporation
- Willem H. Groeneweg
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Frequency search system for a phase locked loop
- Patent number 4,443,769
- Issue date Apr 17, 1984
- RCA Corporation
- Felix Aschwanden
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal processor for beam-scan velocity modulation
- Patent number 4,309,725
- Issue date Jan 5, 1982
- RCA Corporation
- Willem H. Groeneweg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SECAM-PAL Converter
- Patent number 4,233,622
- Issue date Nov 11, 1980
- RCA Corporation
- Willem H. Groeneweg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
PAL switching control circuit
- Patent number 4,148,058
- Issue date Apr 3, 1979
- RCA Corporation
- Leopold A. Harwood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
PAL identification circuit
- Patent number 4,133,002
- Issue date Jan 2, 1979
- RCA Corporation
- Willem H. Groeneweg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Standard/nonstandard internal vertical sync producing apparatus
- Patent number 4,096,528
- Issue date Jun 20, 1978
- RCA Corporation
- Alois Vaclav Tuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Average beam current limiter
- Patent number 4,096,518
- Issue date Jun 20, 1978
- RCA Corporation
- Alois Vaclav Tuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Controlled oscillator with increased immunity to parasitic capacitance
- Patent number 4,095,255
- Issue date Jun 13, 1978
- RCA Corporation
- Willem Hendrik Groeneweg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Willem H. Groeneweg

Person

Patents Grantslast 30 patents

Sine wave deflection circuit for bidirectional scanning of a cathod...

Frequency search system for a phase locked loop

Signal processor for beam-scan velocity modulation

SECAM-PAL Converter

PAL switching control circuit

PAL identification circuit

Standard/nonstandard internal vertical sync producing apparatus

Average beam current limiter

Controlled oscillator with increased immunity to parasitic capacitance