David W. Blum

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Essex Junction, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Duty-cycle correction circuit
- Patent number 6,426,660
- Issue date Jul 30, 2002
- International Business Machines Corporation
- Shiu C. Ho
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Clock signal duty cycle correction circuit and method
- Patent number 5,757,218
- Issue date May 26, 1998
- International Business Machines Corporation
- David W. Blum
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Line fault detection system with a differential driver
- Patent number 5,418,484
- Issue date May 23, 1995
- International Business Machines Corp.
- David W. Blum
- H04 - ELECTRIC COMMUNICATION TECHNIQUE