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Walter Demmer
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Hamburg, DE
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last 30 patents
Information
Patent Grant
Digital low-pass filter with improved frequency reduction character...
Patent number
4,779,128
Issue date
Oct 18, 1988
U.S. Philips Corp.
Kurt-Joachim Johannes
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method for converting an analog picture signal into an amplitude-di...
Patent number
4,719,504
Issue date
Jan 12, 1988
U.S. Philips Corporation
Peter E. Draheim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for synchronization of a signal
Patent number
4,672,447
Issue date
Jun 9, 1987
U.S. Philips Corporation
Wilhelm Moring
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for converting a digital input signal into an a...
Patent number
4,641,131
Issue date
Feb 3, 1987
U.S. Philips Corporation
Walter H. Demmer
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
FM Demodulator using interpolation to approximate zero crossings
Patent number
4,570,126
Issue date
Feb 11, 1986
U.S. Philips Corporation
Walter H. Demmer
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital FM demodulator using a filter having a linearly sloping fre...
Patent number
4,499,427
Issue date
Feb 12, 1985
U.S. Philips Corporation
Walter Demmer
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit arrangement for adjusting the direct current level of a vid...
Patent number
4,470,066
Issue date
Sep 4, 1984
U.S. Philips Corporation
Jorg Wolber
H04 - ELECTRIC COMMUNICATION TECHNIQUE