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| Number | Title | Issue Date |
| 6963783 | Audio compression in a wireless remote interface tablet A system which includes a personal computer or a server adapted to be connected by way of a radio link to one or more wireless interface devices. Each of the wireless interface devices is configured to support multimedia applications and may include a speaker, as we... | 11/08/2005 |
| 6262719 | Mouse emulation with a passive pen A pen-based portable personal computer can emulate the functions of a standard two-button mouse. In particular the system can emulate standard movement and clicking of a mouse buttons as well as emulate both left and right mouse buttons of a two-button mo... | 07/17/2001 |
| 6126327 | Radio flash update A wireless interface device is adapted to be interfaced with a host computer by way of a radio link. A wireless interface device includes one or more flash memory devices that are adapted to be updated by the host computer over the radio link.... | 10/03/2000 |
| 6126332 | Apparatus and method for automatically disconnecting address and data buses in a multimedia system when docking with a portable personal computer A flexible multimedia presentation system is configured to be releasably secured to a portable personal computer to provide additional features, such as a PCMCIA interface, a port replicator and other options. The system is configured to enable the unit t... | 10/03/2000 |
| 6108727 | System having wireless interface device for storing compressed predetermined program files received from a remote host and communicating with the remote host via wireless link A system for compressing program files at a remote host computer and transmitting the compressed program files to one or more wireless interface devices using a wireless link. The received compressed files are stored in an electronically programmable stor... | 08/22/2000 |
| 6092117 | System and method for automatically reconnecting a wireless interface device to a host computer A wireless interface device is adapted to be connected to a host computer. On power-up, a list of available hosts is identified in a dialog box on the display of the wireless interface device. Once a host is selected, the node address for the selected hos... | 07/18/2000 |
| 6052789 | Power management architecture for a reconfigurable write-back cache A computer system having a power monitoring device places a write-back cache memory into a write-through mode upon detection of a low-battery condition or a user request. Under write-through mode, the cache memory need not be flushed every time a suspend ... | 04/18/2000 |
| 6049452 | Removable multiple drive bay unit A case for a personal computer or the like is provided which includes a modular multiple drive bay unit that is removably attached to the case. The removable unit can have various drive units such as floppy disk drives, CD drives, and the like, installed ... | 04/11/2000 |
| 6038641 | Two stage cache memory system and method A cache memory is divided into two parts, a master cache memory and a slave cache memory. The slave cache memory receives data from a slow source and then sends it quickly to the master cache memory so that the master cache memory is occupied less of the ... | 03/14/2000 |
| 6026454 | Interface for multiplexing and reformatting information transfer between device driver programs and a network application program which only accepts information in a predetermined format A dedicated network expansion unit includes a processor and a dedicated hard disk drive, and has two bays which each can receive one of a further hard disk drive, a floppy disk drive, a CD-ROM drive, and a tape drive. The unit has no manual input mechanis... | 02/15/2000 |
| 6023735 | Expansion module including programmable chip selects The present invention relates to a computer system and more particularly to a computer system which allows option controller cards for various input/output (I/O) devices to be added on the motherboard at minimum cost.... | 02/08/2000 |
| 6018806 | Method and system for rebooting a computer having corrupted memory using an external jumper A computer system includes a flash memory device for storing BIOS code. The BIOS code is stored in an unprotected area of the flash memory. A boot block, stored in a protected area of the flash memory, is used for rebooting the computer system in the even... | 01/25/2000 |
| 6009495 | Protected address range in an electrically erasable programmable read only memory An interface between the host CPU and the programmably memory, providing an address, data and read/write control signals to create a non-volatile sector within the programmable memory. In an embodiment when the system reset is de-asserted immediately afte... | 12/28/1999 |
| 6005533 | Remote occlusion region A wireless interface device includes a display. When connected, the wireless interface device takes control of the host computer and displays everything being displayed at the host. The wireless interface device also includes a virtual on-screen keyboard ... | 12/21/1999 |
| 5999991 | Programmably selectable addresses for expansion cards for a motherboard The present invention relates to a computer system and more particularly to a computer system which allows option controller cards for various input/output (I/O) devices to be added on the motherboard at minimum cost.... | 12/07/1999 |
| 5996082 | System and method for delaying a wake-up signal A pen-based personal computer includes a main power switch for initial power-up. The pen-based portable personal computer includes a keyboard controller which controls power management of the battery and places the pen-based portable personal computer in ... | 11/30/1999 |
| 5990875 | Double pen up event A pen-based computer system device includes a digitizer and utilizes a passive stylus as an input device. The system emulates standard two-button mouse functions by generating data packets corresponding to the x-y coordinates of the stylus for each pen-do... | 11/23/1999 |
| 5987618 | Programmable hardware timer including two programmable hardware downcounters wherein the second downcounter counts in multiples of the first downcounter A programmable hardware timer provides a relatively consistently measure of predetermined time intervals over a relatively wide range of performance levels. The programmable hardware timer includes a downcounter, driven by a predetermined clock frequency,... | 11/16/1999 |
| 5974558 | Resume on pen contact A pen-based portable personal computer utilizes a passive stylus. In order to conserve battery power, the system automatically goes into a low-power state after a predetermined period of inactivity. In the low-power state, minimal power is provided to a d... | 10/26/1999 |
| 5956522 | Symmetric multiprocessing system with unified environment and distributed system functions A symmetric multiprocessing system with a unified environment and distributed system functions provides unified address space for all functional units in the system while distributing the execution of various system functions over the functional units of ... | 09/21/1999 |
| 5883497 | Battery fuel gauge A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charg... | 03/16/1999 |
| 5872967 | Method for warm boot from reset A computer system employs a process on warm boot which obviates the need to copy code in non-volatile memory to volatile memory; a normal function in a warm boot process. The computer system checks a warm boot flag which indicates that the code was previo... | 02/16/1999 |
| 5870520 | Flash disaster recovery ROM and utility to reprogram multiple ROMS A memory system includes a flash ROM for storing the instructions for the BIOS, as well as a flash recovery ROM and a utility for programming both flash ROMs. The memory system also provides for flash disaster recovery in order to enable reprogramming of ... | 02/09/1999 |
| 5867106 | Password switch to override remote control A wireless interface device is adapted to be interfaced with a host computer. While the wireless interface device is connected to the host computer, the keyboard and mouse input devices of the host computer are locked out to prevent unauthorized access. S... | 02/02/1999 |
| 5867655 | Method to store privileged data within the primary CPU memory space In the present invention, a single EEPROM is used to store firmware for the CPU, firmware for the SCP and the system password and other critical system data. Hardware protection is provided that prevents the CPU from accessing the portion of the EEPROM th... | 02/02/1999 |
| 5864698 | Disk based bios A method and apparatus enables the BIOS to be stored on a mass storage device, such as a hard disk, to enable a computer system to be booted even during conditions of disk failure. A fully functional version of the BIOS, such as a first production version... | 01/26/1999 |
| 5854736 | Peripheral card locking device A locking system for a computer or computer accessory housing not only secures the housing but also secures any PCMCIA cards installed in PCMCIA slots in the housing. In particular, the computer or accessory housing is configured with two side-by-side PCM... | 12/29/1998 |
| 5848250 | Processor upgrade system for a personal computer A system for upgrading a personal computer includes a motherboard having upgrade sockets for upgrading the CPU and the clock oscillator without the need to remove any components. The system includes sensing circuitry for detecting the type of component pl... | 12/08/1998 |
| 5847546 | System and apparatus for generating a continuosly variable reference signal for controlling battery cell charging A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charg... | 12/08/1998 |
| 5838141 | Method for generating a continuously variable reference signal for controlling battery cell charging A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charg... | 11/17/1998 |
| 5822601 | Apparatus to allow a CPU to control the relocation of code blocks for other CPUs The invention provides for a CPU in a digital system to control the location of the code being executed by one or more peripheral CPUs when all CPUs share a common memory. This allows the CPU to allocate convenient (e.g., unused) blocks of its address spa... | 10/13/1998 |
| 5821733 | Multiple cell and serially connected rechargeable batteries and charging system A battery charging system for multiple series connected battery cells which includes a plurality of shunt regulators, adapted to be connected in parallel with each of the cells. The voltage of each cell is monitored during charging. When a cell is fully c... | 10/13/1998 |
| 5809340 | Adaptively generating timing signals for access to various memory devices based on stored profiles Timing calculator means in a computer system are used to adaptively generate an appropriate access signal, to one of a plurality of memory types, based on first and second timing control values, wherein the first timing control value represents informatio... | 09/15/1998 |
| 5809290 | Programmable hardware counter A programmable hardware timer provides a relatively consistently measure of predetermined time intervals over a relatively wide range of performance levels. The programmable hardware timer includes a downcounter, driven by a predetermined clock frequency,... | 09/15/1998 |
| 5802376 | Write once read only registers The invention provides a simple I/O port which can be used to support a variety of system functions such as a revision, configuration or identification register. This port is provided with a means to be programmable once, upon system power-up so that chan... | 09/01/1998 |
| 5793606 | Removable LCD and stand assembly A portable presentation system includes a portable personal computer with a removable LCD and a stand assembly for carrying the LCD in a detached position to enable the LCD to be viewed when detached from the portable personal computer. In accordance with... | 08/11/1998 |
| 5786984 | Modular portable personal computer A modular portable personal computer includes one or more flexible bays accessible from the front surface of the computer. One or more of the flexible bays may be configured as a dual functional bay to enable the bay to interchangeably receive different m... | 07/28/1998 |
| 5784642 | System for establishing a transfer mode between system controller and peripheral device The present invention relates to a computer system and more particularly to a computer system which allows option controller cards for various input/output (I/O) devices to be added on the motherboard at minimum cost.... | 07/21/1998 |
| 5764995 | Write once read only registers The invention provides a simple I/O port which can be used to support a variety of system functions such as a revision, configuration or identification register. This port is provided with a means to be programmable once, upon system power-up so that chan... | 06/09/1998 |
| 5752063 | Write inhibited registers The invention provides a simple I/O port which can be used to support a variety of system functions such as a revision, configuration or identification register. This port is provided with a means to be programmable once, upon system power-up so that chan... | 05/12/1998 |
