Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6822495 | System and method for implementing a skew-tolerant true-single-phase-clocking flip-flop An exemplary skew-tolerant true-single-phase-clocking (TSPC) flip-flop is disclosed that reduces current spikes by allowing willful introduction of skew in the clock tree of a single-phase circuit design. More precisely, a split-clock TSPC flip-flop, which allows th... | 11/23/2004 |
| D492022 | Combination ceiling fan and light fixture | 06/22/2004 |
| 6662131 | Method and device for conditioning a periodic analog signal A device and method for conditioning a periodic analog signal to predetermined positive and negative desired peak values. The signal is adjusted using multiplicative correcting steps, which modifies the signal amplitude. An additive correcting step adds t... | 12/09/2003 |
| 6524632 | Process for recovering feed-grade protein from animal manure A process is described for recovering the protein values from animal manure, particularly cattle, pigs and poultry, for reuse as animal feed. The process involves the use of an anaerobic digester to provide methane gas for combustion and use for heating a... | 02/25/2003 |
| 6490706 | High Q gyrator structures The invention relates to a filter circuit and a method for making a filter circuit comprising at least one gyrator core section (GCi) having four inverters mutually connected in a loop configuration between a pair of input terminals (i-- 1; i | 12/03/2002 |
| 6404736 | Call-routing efficiency with a network access server A method and apparatus enables a Network Access Server together with a telecommunications switch to route incoming calls only to devices that have sufficient resources to provide a connection to the Internet. A set of devices, RPs, reformat incoming data ... | 06/11/2002 |
| 6219557 | System and method for providing location services in parallel to existing services in general packet radio services architecture A telecommunications system and method is disclosed for enabling a General Packet Radio Service (GPRS) node, namely a Serving GPRS Support Node (SGSN) within a cellular network, to be able to handle requests for Location Services (LCS) for a GPRS mobile s... | 04/17/2001 |
| 6159186 | Infusion delivery system Apparatus for providing control of infusion delivery using conventional infusion fluid bags includes an air bag which is pressurised by a pneumatic pump. A digital camera or imaging device is able to analyse drops passing through a drop chamber, by captur... | 12/12/2000 |
| 6151498 | System and method for routing positioning requests based on mobile switching center address A telecommunications system and method is disclosed for allowing a Gateway Mobile Positioning Center (GMPC) to route positioning requests to the Public Land Mobile Network (PLMN) where the subscriber is currently located without the need for storing the s... | 11/21/2000 |
| 6138014 | System and method for optimization of multi-party calls in a satellite network A telecommunications system and method is disclosed for optimizing multi-party calls within a satellite network. This can be accomplished by the Mobile Switching Center (MSC) that the subscriber is currently registered in receiving a multi-party request f... | 10/24/2000 |
| 5956642 | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system A method and system of adaptive channel allocation in a multi-carrier, multi-slot system is provided. In the method and system a subset of M channels is chosen from a larger set of N channels available for communications on a link. As communications take ... | 09/21/1999 |
| 5918024 | Method and apparatus for providing single channel communications A UART including a logic unit is disclosed, wherein the logic unit automatically enables or disables the UART receiver port whenever data is being processed by the UART for wireless transmission. More specifically, a logic unit is connected to a data stor... | 06/29/1999 |
| 5909487 | Automatic call generator within a telecommunications system An application module associated with a telecommunication exchange serving a particular subscriber stores a directory number representing a called party subscriber and time data representing the time a call connection between the subscriber and the called... | 06/01/1999 |
| 5859481 | Auxiliary battery sensor switch An apparatus for sensing the presence of an auxiliary battery connected to a cellular telephone is disclosed. An internal battery and a removable auxiliary battery are connected to the power system of the cellular telephone through first and second switch... | 01/12/1999 |
| 5847317 | Plated rubber gasket for RF shielding An improved RF shielding apparatus includes a shield frame having a nonconductive gasket mounted to the edges thereof. A conductive layer is deposited on the gasket and shield frame such that a substantially continuous layer surrounds the gasket and shiel... | 12/08/1998 |
| 5838674 | Circuitry and method for time division multiple access communication system Method and apparatus for increasing the communication capacity of a communication system utilizing a time-division, multiple-access communication scheme. A broadcast carrier is defined which is divided into time slots which include a control channel and t... | 11/17/1998 |
| 5769661 | In-service removable cable ground connection The body of a connector assembly is attached to the ground of a cable internally disposed within an enclosure. The connector body has a radial flange positioned on the outside surface of the enclosure and a nut, threaded onto a portion of the connector ex... | 06/23/1998 |
| 5678019 | Real-time clock with extendable memory A real time clock plus user memory and extra memory integrated in a single circuit with access to the extra memory either by direct addressing or by providing the address as data to specified addresses in the user memory. Further, the user memory has two ... | 10/14/1997 |
| 5623532 | Hardware and data redundant architecture for nodes in a communications system A mobile switching center including multiple home location register platforms presented in varying configurations and connected to a network through a set of signal transfer points. In a master/slave configuration, a master platform is given primary respo... | 04/22/1997 |
