Herbert G. Derby

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for utilizing the memory of a portable computer a...
- Patent number 6,154,810
- Issue date Nov 28, 2000
- Apple Computer, Inc.
- Herbert G. Derby
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for improved arbitration of a display screen in a...
- Patent number 5,825,359
- Issue date Oct 20, 1998
- Apple Computer, Inc.
- Herbert G. Derby
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
System and method for using a frame buffer in cached mode to increa...
- Patent number 5,790,137
- Issue date Aug 4, 1998
- Apple Computer, Inc.
- Herbert G. Derby
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Graphic software functions without branch instructions
- Patent number 5,768,172
- Issue date Jun 16, 1998
- Apple Computer, Inc.
- Herbert G. Derby
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for increasing the speed of a Z-buffer process
- Patent number 5,761,400
- Issue date Jun 2, 1998
- Apple Computer, Inc.
- Herbert G. Derby
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for the acceleration of graphics images in a mult...
- Patent number 5,727,190
- Issue date Mar 10, 1998
- Apple Computer, Inc.
- Herbert G. Derby
- G06 - COMPUTING CALCULATING COUNTING