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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 6373470 | Cursor control device having an integral top member A typical mouse presents great inconvenience to those who have very large hands, very small hands or those who have finger deformity. When the hands are very large, user fingers need to bend over in order to reach the button; when the hands are very small... | 04/16/2002 |
| 6262886 | Translucent protective covering for a computer housing The present invention includes a portable computer having improved resistance to scratching, marring and general abuses that include shock and vibration. The computer has a computer housing that includes a display housing and a main housing. A portion int... | 07/17/2001 |
| 5933154 | Multi-panel video display control addressing of interleaved frame buffers via CPU address conversion A method and an apparatus for interleaving display frame buffers for use by multi-panel display(s) is disclosed. The system provides a data addressing transformation apparatus for converting CPU addresses for pixel positions of the multiple panels of disp... | 08/03/1999 |
| 5929868 | Method and apparatus for computer display memory management A method and an apparatus for interleaving display frame buffers is disclosed. The system includes a processor providing CPU addresses for peripheral (access, a display system, a single memory system for storing multiple frame buffers, data buses for tran... | 07/27/1999 |
| 5854641 | Method and apparatus for display image rotation A method and an apparatus for rotating images on a computer system is disclosed. The system includes a processor for accessing an image frame buffer using a set of CPU addresses, a memory for storing the frame buffer, a controller for directing the pixel ... | 12/29/1998 |
| 5825351 | Method and apparatus for noise filtering for an input device A method and apparatus in an electronically controlled system such as a portable computer are provided for minimizing effects of noise picked up by an input device such as a touch-sensitive capacitive coupling input pad where a conductive stylus may be us... | 10/20/1998 |
| 5778521 | Method for ejecting a PCMCIA card from a housing A housing and ejection mechanism for PCMCIA electronic "smart cards" is disclosed. The ejection mechanism comprises a pair of cooperating lever arms and springs. When a "smart card" is inserted into the housing, the two lever arms pivot into the housing, ... | 07/14/1998 |
| 5773963 | Method and apparatus for programmably adjusting output voltage of a battery charger An apparatus for programmably adjusting output voltage of a constant-voltage battery charger is disclosed. The present invention includes a power circuit for generating an output voltage for charging batteries. This power circuit generates this output vol... | 06/30/1998 |
| 5701232 | Sliding protection door for covering one or both of a pair of mutually exclusive electrical connectors An apparatus in a hand-held computing device for providing non-simultaneous user access to a pair of mutually exclusive electrical connectors is disclosed. The present invention includes a slidable door having three operative positions. In its closed posi... | 12/23/1997 |
| 5651126 | Method and apparatus for reducing transitions on computer signal lines A method and apparatus for eliminating unnecessary address transitions on an DRAM address bus and DRAM write enable line. In a known DRAM controller and DRAM array, all address transitions on the CPU address bus are mirrored by address transitions on the ... | 07/22/1997 |
| 5625386 | Method and apparatus for interleaving display buffers A method and an apparatus for interleaving display frame buffers is disclosed. The system includes a processor providing CPU addresses for peripheral access, a display system, a single memory system for storing multiple frame buffers, data buses for trans... | 04/29/1997 |
| 5616051 | A.C. mains adapters for international use A power connecting device for electrical appliances having two metal prongs for use with standard North American mains outlets; the prongs rotate to fold into a recess in the device. The recess protects the prongs for storage and transport, and is designe... | 04/01/1997 |
| 5608604 | Hinge as an electrical conductor A hinge-EMI grounding conductor is disclosed for an electronic device which has hinged operating portions, for example, a portable computer having a display housing hingedly attached to a main body housing. The present invention not only allows the angle ... | 03/04/1997 |
| 5566064 | High efficiency supply for electroluminescent panels Apparatus for operating electroluminescent panels. An electroluminescent panel is driven by a voltage source feeding a modified bridge driven by a pulse width modulated signal. By using a pulse frequency above the range of human hearing and a modulating s... | 10/15/1996 |
| 5559683 | Flyback switching power supply with bootstrapped gate drive Method and apparatus for providing bootstrapped gate drive voltage in a flyback switching power supply. Switching transients and ringing caused by leakage inductance and capacitance in the flyback transformer are captured and used to provide a boosted gat... | 09/24/1996 |
| 5528205 | Integrated electromagnetic interference filter An integrated and drop-in EMI filter that features common-mode and differential-mode noise filtering capabilities is disclosed. The common-mode portion and the differential-mode portion of the filter are independent of each other in that the two filter po... | 06/18/1996 |
| 5422751 | Liquid crystal display assembly employing front bezel, frame holding liquid crystal cell attached to bezel, and light source and back plate attached to bezel The use of a single metal mounting frame within an LCD assembly having an outer plastic housing provides for a thin, light, rigid, and less expensive LCD assembly. The metal mounting frame is coupled to a bezel and aligns an LCD panel between the bezel an... | 06/06/1995 |
| 5420493 | Power supply and battery charger An integrated AC adapter and battery charger is disclosed. The apparatus comprises an AC adapter unit for converting AC power to a DC power and a battery charging apparatus coupled to the AC adapter unit for charging a battery pack. The battery charging a... | 05/30/1995 |
| 5367631 | Cursor control device with programmable preset cursor positions A method and apparatus for instantaneously and discontinuously moving the cursor in a computer system to any one of a plurality of user-selected screen positions is disclosed. In many known computer systems, a cursor control device known as a mouse is use... | 11/22/1994 |
