The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 8108621 | Data cache with modified bit array A cache memory system includes a first array of storage elements each configured to store a cache line, a second array of storage elements corresponding to the first array of storage elements each configured to store a first partial status of the cache line in the c... | 01/31/2012 |
| 6224384 | Method and apparatus for training of auditory/visual discrimination using target and distractor phonemes/graphemes An apparatus and method for training of auditory and graphical discrimination in humans is provided. The method and apparatus provides a number of stimulus sets, each stimulus set having a target phoneme, and associated grapheme, and a number of distracto... | 05/01/2001 |
| 5951676 | Apparatus and method for direct loading of offset register during pointer load operation An apparatus and method for loading a pointer into a selector register/general purpose register pair is provided. The apparatus and method utilizes a single micro instruction to load an offset directly into the general purpose register, during the write b... | 09/14/1999 |
| 5811983 | Test ring oscillator An apparatus and method for measuring parasitic differences between dissimilar conductive paths on a semiconductor is provided. The apparatus provides a ring oscillator which has two propagation paths. The first path is traversed on a logical transition f... | 09/22/1998 |
| 5448697 | Method and apparatus for simplified control of a video monitor A method and apparatus which provides bi-directional communication between a video monitor and a computer system unit. This enables the video monitor to inform the system unit of its capabilities without user involvement and also enables the system unit t... | 09/05/1995 |
| 5440448 | Electronic system with compact card ejector A small computer having a card interface slot in a side of the computer. An inserted electronic card, the connector on its inserted end mates firmly with a connector at the inner end of the recess behind the slot. The user ejects an inserted card by slidi... | 08/08/1995 |
| 5384788 | Apparatus and method for optimal error correcting code to parity conversion This invention relates to the general area of data integrety in digital computers. In particular it relates to digital computer systems having parity checked systems busses and ECC checked memory. This invention increases the performance of such systems b... | 01/24/1995 |