Power supply with multiple outputs and load balancing
OF THE INVENTION With reference to FIG. 3, a prior art power supply connects in parallel the outputs of two or more power converters (1, 2) with multiple outputs (10, 11, 20, 21) while endeavoring to... Read More
Inventors: Paladel, Jean-Marie;, Assignee: Bull S.A. (Paris, FR) |
Function test evaluation apparatus for evaluating a function test of a logic circuit
Accordingly, an object of the invention is to provide a function test evaluation apparatus for evaluating the function of an integrated circuit for a short time. In order to achieve the above object, ... Read More
Inventors: Shirasaka, Hisatoshi;, Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (JP) |
Graphic communication apparatus
What is claimed is: 1. Graphic communication apparatus, comprising, in combination: a writing surface; pen means movable on the writing surface for graphically portraying information on the writing su... Read More
Inventors: Rodgers, James L.;, Assignee: Kurta Corporation (Tempe, AZ) |
Electronic blackboard apparatus
Accordingly, a primary object of the present invention is to provide an electronic blackboard apparatus which is lightweight and outstanding in durability. To this end, the present invention provides,... Read More
Inventors: Miyamori, Nobuyuki; Tomofuji, Yoshiaki; Izawa, Kiyosato; Tsuchida, Youichi;, Assignee: Wacom Co., Ltd. (Saitama, JP) |
Remote indicating low battery voltage enunciator method and apparatus
Therefore, what is claimed and desired to be protected by Letters Patent is: 1. Low power supply voltage warning apparatus for a remote, self-contained power supply keyboard data input device, compris... Read More
Inventors: Flowers, Dale R.;, Assignee: International Business Machines Corp. (Armonk, NY) |
Low power, high resolution digitizing system with cordless pen/mouse
It is an object of the invention to provide a digitizing device including a cordless electrostatic stylus or cursor that is capacitively coupled to a digitizer surface. It is another object of the inv... Read More
Inventors: Rodgers, James L.; Waterbury, Charles A.;, Assignee: Kurta Corporation (Phoenix, AZ) |
Apparatus and method for generating low level noise signals
In accordance with the present invention, apparatus and a method for generating low level noise signals are provided which substantially eliminate or reduce disadvantages and problems associated with ... Read More
Inventors: Shenoi, Kishan; Ho, Helena S.;, Assignee: DSC Communications Corporation (Plano, TX) |
Touch panel for an acoustic touch position sensor
OF THE PREFERRED EMBODIMENT The touch position sensor of the present invention includes a substrate 10 that is capable of propagating a shear wave 12 as shown in FIG. 2A. The substrate 10 may be form... Read More
Inventors: Knowles, Terence J.;, Assignee: Carroll Touch Inc. (Round Rock, TX) |
Absolute position controller
What is claimed: 1. A position location system including a marking means, the marking means being defined along a path and including a pattern, the pattern comprising an irregular sequence of contiguo... Read More
Inventors: Joyce, Stephen A.;, Assignee: Advanced Robotic Technology, Inc. (Chicago, IL) |
Position detecting apparatus
An object of the present invention is to provide a position detecting apparatus incorporating a cordless position pointer which is not connected to any part of the stationary portion of the apparatus,... Read More
Inventors: Murakami, Azuma; Yamanami, Tsuguya; Funahashi, Takahiko; Senda, Toshiaki;, Assignee: Kabushiki Kaisha Wakom (Saitama, JP) |
Electronic blackboard and accessories such as writing tools
A first object of the present invention is to provide an electronic blackboard apparatus capable of using a cordless accessary such as an instruction rod, a marker, or an eraser (called a "writing too... Read More
Inventors: Murakami, Azuma; Aoki, Kazuo; Yamanami, Tsuguya; Tomofuji, Yoshiaki; Tanaka, Takeshi; Inashima, Satoshi; Funahashi, Takahiko; Chikami, Toshihide; Senda, Toshiaki;, Assignee: Wacom Co., Ltd. (Saitama, JP) |
Coordinate input device capable of indicating a failure in a coordinate indicator
What is claimed is: 1. A coordinate input device for use in indicating a location on a coordinate surface, said coordinate input device comprising: oscillation generating means for generating an oscil... Read More
Inventors: Kobayashi, Tadashi; Kudo, Tetuo;, Assignee: NEC Corporation (JP) |
Mobility-disabled portable weighing device
What is claimed is: 1. A portable weighing device for the mobility-disabled comprising a pair of modules configured with weighing platforms and provided with a) mechanical means to slideably secure an... Read More
Inventors: Garfinkle, Moishe;, Assignee: |
Virtual I/O
A method and apparatus are disclosed for coupling external, bidirectional ports to an onboard port of a single chip microprocessor such that the external ports can be addressed in the same manner as o... Read More
Inventors: Borkar, Shekhar;, Assignee: Intel Corporation (Santa Claraa, CA) |
Display workstation
We claim: 1. A display workstation comprising a display monitor, having a viewing screen, a cable connector means releasably coupled to the monitor in a position below the viewing screen, a plurality ... Read More
Inventors: Barr, Millard G.; Barrett, William H.; Braidt, Joseph W.; Driscoll, John F.; Gregory, Joseph A.; Lucente, Samuel A.; Remsburger, Louis J.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Electrographic apparatus
The present invention is directed to a resistive layer type electrographic system wherein the resistive material is a uniform layer of predetermined thickness and surface resistivity having a first pr... Read More
Inventors: Kable, Robert G.; Schlosser, Philip A.;, Assignee: Scriptel Corporation (Columbus, OH) |
Electrographic apparatus
As a preliminary consideration of the general approach taken with resistive surface electrographic technology, reference is made to FIGS. 1 and 3 wherein an idealized one-dimensional model is reveale... Read More
Inventors: Schlosser, Philip A.; Kable, Robert G.;, Assignee: Scriptel Holding, Inc. (Columbus, OH) |
Wait circuitry for interfacing between field maintenance processor and device specific adaptor circuit
Briefly described, and in accordance with one embodiment thereof, the invention provides a system including a processor which automatically effects transparent refreshing operations on a dynamic rando... Read More
Inventors: Greenwood, Edward H.;, Assignee: Genrad, Inc. (Concord, MA) |
Recording and reproducing apparatus
The object of the present invention is therefore to provide a recording and reproducing apparatus wherein recording and reproducing of data can be accurately achieved by dividing block data, which is ... Read More
Inventors: Murakami, Hiroyasu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
System for retrieval of a data record by buffering the record in segments and beginning transmission prior to the buffer obtaining the entire record
In computer systems, a processor is typically connected by a channel interface unit to a plurality of data channels. Each data channel is connected to one or more Direct Access Storage Device (DASD) ... Read More
Inventors: Belsan, Jay S.; Milligan, Charles A.;, Assignee: Storage Technology Corporation (Louisville, CO) |
Method and apparatus facilitating use of a hard disk drive in a computer system having suspend/resume capability
Referring to FIG. 1, a computer system 10 includes a central processing unit (CPU) 11, a push-button switch. 12 which is coupled to the CPU 11, a conventional computer keyboard 13, a main memory 16, ... Read More
Inventors: Fakhruddin, Saifuddin T.; Foster, Mark J.; Hovey, Scott A.; Walker, James L.; Vanderheyden, Randy J.;, Assignee: Zenith Data Systems Corporation (Buffalo Grove, IL) |
Method for performing sequence of actions in device connected to computer in response to specified values being written into snooped sub portions of address space
To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present inventio... Read More
Inventors: Erickson, Gene R.; Hundley, Douglas E.; Muller, P. Keith; Stehley, Curtis H.;, Assignee: NCR Corporation (Dayton, OH) |
Personal computer apparatus and method for monitoring memory locations states for facilitating debugging of post and BIOS code
According to the present invention, a computer system is provided having a low-level monitor and debugger routine. Preferably, the routine is capable of executing before the power-on self-test (POST) ... Read More
Inventors: Crump, Dwayne Thomas; Pancoast, Steven Taylor;, Assignee: International Business Machines Corporation (Armonk, NY) |
Method and apparatus for sharing a universal serial bus device among multiple computers by switching
A method and apparatus for allowing multiple electronic systems to share a Universal Serial Bus (USB) device is disclosed. In one embodiment, the electronic systems and the USB device are connected to... Read More
Inventors: Liu, Andrew S.;, Assignee: Intel Corporation (Santa Clara, CA) |
Method for fast reinitialization wherein a saved system image of an operating system is transferred into a primary memory from a secondary memory
Various aspects of the invention may be found in a computing system containing a primary memory and a secondary memory. The secondary memory is either powered independently from the main computing sys... Read More
Inventors: Lay, Tatchi Placido; Muschett, Brien Henry; Ramlow, Allen Justin; Tran, Cuong Huu; Tran, Dung Huu;, Assignee: International Business Machines Corporation (Armonk, NY) |
Operation system independent polled interface for extension BIOS (XBIOS) operations
In accordance with the present invention, system management mode (SMM) is utilized, despite operating system security measures, by furnishing a polled interface for SMM. When an application program is... Read More
Inventors: Pearce, John J.;, Assignee: Dell USA, LP (Round Rock, TX) |
Enhanced system management mode with nesting
The detailed description of an exemplary embodiment of the enhanced System Management Mode (SMM) with SMI nesting is organized as follows: 1. Computer System 2. Virtual System Architecture 2.1. VSA G... Read More
Inventors: Wilcox, Christopher G.; Baldwin, Joseph F.; Mendyke, Xiaoli Y.;, Assignee: Cyrix Corporation (Richardson, TX) |
Operating system independent apparatus and method for supporting input/output devices unsupported by executing programs
PC systems require software such as application code and operating systems in order to provide their intended functions. This software contains various features to support generally standardized hardw... Read More
Inventors: Pearce, John J.; Witte, Kendall C.;, Assignee: Dell USA, L.P. (Round Rock, TX) |
Power conservation method and apparatus activated by detecting shadowed interrupt signals indicative of system inactivity and excluding prefetched signals
OF THE INVENTION The descriptions herein are by way of example only illustrating the preferred embodiment of the present invention. However, it should be appreciated that the method and apparatus of ... Read More
Inventors: Pandey, Vimi; Ma, Kenneth; Jiang, Leo; Shaw, Scott;, Assignee: National Semiconductor Corporation (Santa Clara, CA) |
Implementing universal serial bus support with a minimum of system RAM
A computer system according to the invention implements communication support with a minimum amount of main memory. Communication initialization and runtime code are provided to the BIOS of the comput... Read More
Inventors: Chaiken, Craig L.;, Assignee: Compaq Computer Corporation (Houston, TX) |
I/O Systems 
