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| Number | Title | Issue Date |
| 6031392 | TTL input stage for negative supply systems A TTL input stage for negative supply voltage systems is described herein which obviates the need for a positive supply and a level shifter. In one embodiment, a first JFET current source, the emitter/collector of a PNP bipolar transistor, and a second JF... | 02/29/2000 |
| 6012982 | Bonus award feature in linked gaming machines having a common feature controller A system of linked gaming machines is disclosed where each of the linked gaming machines is connected to a common controller. In a normal mode of play, each of the linked gaming machines operates like a conventional machine where the generation of certain... | 01/11/2000 |
| 6005403 | Flexible electrical test fixture for integrated circuits on prototype and production printed circuit boards An electrical test fixture used to connect the probes of an electronic test instrument to the pins of any integrated circuit. Made from flexible material, the fixture folds above the integrated circuit under test bringing test point pins to useable positi... | 12/21/1999 |
| 5997401 | Slot machine with symbol save feature A method for operating a rotating reel type slot machine, or a video machine which depicts rotating reels, is described herein which allows a player to save in memory one or more symbols from one or more previous games and use those symbols in a current g... | 12/07/1999 |
| 5993051 | Combined leading one and leading zero anticipator A floating point unit (FPU) is described which processes normalized binary numbers. All multiply, add, and subtract calculations are performed using the format (A*B)+C or (A*B)-C. The operation A*B is performed in parallel with the alignment of C to the p... | 11/30/1999 |
| 5844826 | Leading zero count circuit A leading zero counter or anticipator is described herein which uses a 36-bit-wide bus. The bus can handle four 8 or 9-bit words, two 16-bit words, or one 32-bit word. The leading zero counter has an encoder section, a logic section, and a multiplexer sec... | 12/01/1998 |
| 5822313 | Seamless handover in a cordless TDMA system A technique is disclosed for allowing a seamless handover between base stations in a TDMA controller as a telephone handset is transported from one base station's area to another. The disclosed circuitry enables the TDMA controller to assess the quality o... | 10/13/1998 |
| 5643820 | Method for fabricating an MOS capacitor using zener diode region A process is disclosed (hereafter referred to as the "BiCDMOS Process") which simultaneously forms bipolar transistors, relatively high voltage CMOS transistors, relatively low voltage CMOS transistors, DMOS transistors, zener diodes, and thin-film resist... | 07/01/1997 |
| 5640308 | Field programmable circuit module The invention uses a programmable interconnect substrate having a plurality of conductive and interconnectable vias located on one or both surfaces thereof. A customized pattern of bonding pads is then formed over the one or both surfaces of the substrate... | 06/17/1997 |
| 5627946 | Hard disk format using frames of sectors to optimize location of servo bursts A hard disk format is disclosed which sequentially arranges a number of different sector types, each having a different format, into frames which are repeated around the tracks of a magnetic disk. The sector types and frame arrangements are chosen so that... | 05/06/1997 |
| 5598419 | Dynamic synchronization code detection window A method and structure for virtually eliminating any false detections of a synchronization code is described which creates a selectable window during which the synchronization code is expected to appear. A coincidental replication of the synchronization c... | 01/28/1997 |
| 5596737 | Sequencer map for a hard disk controller combining data and next-addres fields A sequencer map is disclosed which combines a data field and a next-address field into a single field to thereby reduce the word length of instructions required to operate a magnetic disk drive. The combined data and next-address field has two different f... | 01/21/1997 |
