Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 5802057 | Fly-by serial bus arbitration In a first embodiment, multi-speed concatenated packet strings are transmitted by a first node on a serial bus. To accommodate multi-speed packets, a speed signal is transmitted immediately prior to the packet. In a second embodiment, ACK-concatenation is... | 09/01/1998 |
| 5802042 | Autosensing LMI protocols in frame relay networks The invention provides a method and system for auto-sensing LMI protocols in frame relay networks. When a router is first coupled to a frame relay network, it automatically configures the local management interface (LMI) to use one of a selected set of po... | 09/01/1998 |
| 5802053 | Transport gateway between a native network and a mixed network In order to more fully support the need to interconnect dissimilar networks, methods and apparatus are set forth which allow a transport gateway between a native (SNA/APPN) network and a mixed or non-native network to preserve the dynamic functions of the... | 09/01/1998 |
| 5802153 | Apparatus and method for interfacing between a communications channel and a processor for data transmission and reception An apparatus (101) and method for interfacing between a processor (103) and a communications channel (105), the processor operable in data terminal equipment (102) such as a computer having a communications application program, to provide for data transmi... | 09/01/1998 |
| 5802062 | Preventing conflicts in distributed systems A token-based protocol used to prevent conflicts between copies of the same data items residing in different servers of a replicated distributed system is provided. The servers in the system with database replicas are provided with token pointers that are... | 09/01/1998 |
| 5799013 | Methods and devices for enhancing communications that use spread spectrum technology by using variable power techniques A method and device are disclosed that utilize a spread spectrum coding process for processing a signal having first and second time portions to achieve unequal error protection of the time portions by variably modulating the power of one segment relative... | 08/25/1998 |
| 5799253 | Method of switching in a signal selecting system A signal selecting system comparator (25) employs a method of switching selected first (40) and second (41) input ports to an output port (43). A block divided first signal (A) is received at the first input (40), buffered and passed to the output (43) as... | 08/25/1998 |
| 5799019 | Circuit for converting frame data A circuit for converting frame data is disclosed, in which data communications can be carried out by matching the T1 repeater line of the North American method and the E1 repeater line of the CEPT. The four 32-channel frame data of the E1 line of the CEPT... | 08/25/1998 |
| 5790533 | Method and apparatus for adaptive RF power control of cable access units A method and apparatus for controlling data transmissions from a first communications unit (202) to a second communications unit (210). Data transmissions received from the first communications unit (202) at the second communications unit (210) are proces... | 08/04/1998 |
| 5790534 | Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals A method for operating a cellular communications system of a type that includes a first type of terminal having real-time transmission needs and a second type of terminal having nonreal-time transmission needs. The method includes the steps of (a) determi... | 08/04/1998 |
| 5787087 | Method and apparatus for interconnecting a plurality of terminal equipments to the ISDN An interface port expansion device (302) allows for more than one terminal equipment (304, 306, 308 and 310) having embedded U-interface termination's to interface to the ISDN via the U interface. The port expansion device (302) can take the form of a sep... | 07/28/1998 |
| 5781598 | System and method of asynchronous data transfer through a plurality of modems A system and method are disclosed for asynchronously transmitting data from an originating system to a receiving system over first and second channels. The system determines an originating data rate at the originating system, sets a threshold data rate, t... | 07/14/1998 |
| 5781534 | Method and apparatus for determining characteristics of a path An information gathering mechanism efficiently acquires information about a path interconnecting a source node and a destination node in a computer network. The mechanism comprises a novel packet configuration for soliciting parameters pertaining to netwo... | 07/14/1998 |
| 5764644 | Method and apparatus for transport of communication signals over a public network A method and apparatus for transmitting signals at different rates between an originating device and a destination device. The originating device generates a communication signal, including routing data, for transmitting the communication signal at a nati... | 06/09/1998 |
| 5754548 | Interconnection of local communication bus system In a local communication system comprising a number of devices (14,16) interconnected by a first data bus (20) supporting a first set of communication protocols, and at least one further device (10) connected to a second bus (12) not supporting those prot... | 05/19/1998 |
| 5754552 | Automatic communication protocol detection system and method for network systems A communication protocol detection system for enabling a network system to detect and interface one or more network devices each operating according to at least one of a plurality of different communication protocols. In one embodiment, a network interfac... | 05/19/1998 |
| 5752082 | System for multiplexing pins of a PC card socket and PC card bus adapter for providing audio communication between PC card and computer sound system A computer system including a PC Card socket or PCMCIA socket receiving a PC Card, wherein the PC Card socket communicates digital audio information to/from the computer's sound system. The present invention also comprises a PC Card ISDN terminal adapter ... | 05/12/1998 |
| 5751712 | Technique for efficiently allocating bandwidth to multimedia calls in a communications system In a multimedia communications system where bandwidth of an access facility is limited, the bandwidth is partitioned into three bands dedicated to audio, video and data traffic, respectively, in accordance with blocking probabilities associated with the r... | 05/12/1998 |
| 5748635 | Multiport datapath system A multiport interface for digital communication systems having pipelined multiplexing of port instructions for increased throughput. The multiport interface includes an analog delay for independent timing of asynchronous operations, such as memory accesse... | 05/05/1998 |
| 5748636 | Method for transmitting signaling information within a broadband ISDN communication network The transmission of signaling information between network nodes connected to one another ensues in separate signaling channels. A signaling protocol corresponding to a broadband ISDN layer model is respectively defined for such signaling information. Amon... | 05/05/1998 |
| 5745487 | Communication apparatus for transmitting/receiving different types of data in one TDM slot A communication apparatus is provided for transmitting and receiving a plurality types of data with a TDM slot, changing the type of the data by switching a mode. The communication apparatus includes mode switching unit 101 and data dividing unit 102. The... | 04/28/1998 |
| 5742602 | Adaptive repeater system A network (10) includes an adaptive repeater (12) that can service data devices at different data rates. Data devices (18, 20, 22) couple to ports (34) of the adaptive repeater (12), and operate at a first rate in a first domain (14). Data devices (26, 28... | 04/21/1998 |
| 5742765 | Combination local ATM segmentation and reassembly and physical layer device An ATM network interface comprising a physical layer interface having transmit and receive line interfaces, transmit and receive framers and overhead processors coupled to respective ones of the transmit and receive line interfaces and transmit and receiv... | 04/21/1998 |
| 5742361 | Data demultiplexer A data demultiplexer includes a write controller, a memory, an analyzing processing unit, and transfer control units. The write controller writes packets which have arrived thereat into the memory in the order of arrival and sends the write information to... | 04/21/1998 |
| 5742587 | Load balancing port switching hub A port switching hub consists of a number of local area network ports, a number of internal channels to which these ports may be connected from time to time under program control, and circuitry suitable for causing each channel to function as a local area... | 04/21/1998 |
| 5742609 | Smart canister systems The smart canister systems disclosed herein enables missile population to increase while minimizing the need for additional interface hardware. Particularly, multiplexing and demultiplexing functions and conversion flexibility enable the system to be adap... | 04/21/1998 |
| 5740163 | Dual-mode ISDN/STN video telephony terminal The disclosure concerns a dual-mode ISDN/STN visiophone terminal, including at least one audio equipment and one video equipment respectively connected to an ISDN via a dual-mode ISDN/STN audio coder/decoder incorporating an ISDN audio coder, an ISDN audi... | 04/14/1998 |
| 5739597 | Adapter design for dual sourced power A communications adapter card includes a circuit arrangement for causing an electrical voltage to be supplied to the card from a first voltage source, even if a second voltage source is available, and from the second voltage source if the first voltage so... | 04/14/1998 |
| 5726986 | Digital communication system with intelligent channel units In a time division multiplex digital communication system, access devices are capable of generating and detecting data sequences that are normally suppressed by end user equipment for establishing in-band communications between the access device and selec... | 03/10/1998 |
| 5727152 | Interface arrangement, and telecommunication system, and method Known interface arrangements for coupling a first arrangement based on a first protocol and a second arrangement based on a second protocol are not flexible. By providing a memory of the interface arrangement with at least a first memory field for storing... | 03/10/1998 |
| 5724356 | Advanced bridge/router local area network modem node An intelligent LAN modem node is used in a bridge system which provides transparent internetwork communications over a plurality of channels. The LAN modem node is protocol independent and has a packet load distribution system which shares packet traffic ... | 03/03/1998 |
| 5721820 | System for adaptively routing data in switching network wherein source node generates routing message identifying one or more routes form switch selects A method for adaptive routing of messages in a computer network. The method provides adaptive source routing by generating at a source node a routing message describing a plurality of allowable paths via which data message can reach a desired destination.... | 02/24/1998 |
| 5717737 | Apparatus and method for transparent wireless communication between a remote device and a host system An apparatus and method is provided for transparent communication between a wireless remote or mobile device and a fixed wired communication host network. The apparatus and method may include a remote network controller that logically resides between the ... | 02/10/1998 |
| 5715243 | Information service provider for transmitting multiple rate wireless information An information service provider is disclosed which transmits wireless information having address data and message data. The information service provider, such as a computer operatively coupled to a transmitter capable of transmitting wireless information,... | 02/03/1998 |
| 5712872 | Communications system using open architecture bus lines A communications system programmable to operate at a selected one of multiple frequency ranges and any one of a plurality of modulations schemes and data rights including an open architectural bus line for linking a plurality of board level units. A singl... | 01/27/1998 |
| 5708664 | Statistical multiplexing A transmitter for transmitting a plurality of digital signals through a plurality of channels, the channels having a predetermined total allocated bitrate, includes a plurality of encoders each associated with one channel, a multiplexer for receiving the ... | 01/13/1998 |
| 5706290 | Method and apparatus including system architecture for multimedia communication A controller apparatus and method for executing a plurality of control functions for communication of multimedia articles including voice, audio, text, still image, motion video and animated graphics which incorporates a frame memory system which is compa... | 01/06/1998 |
| 5706281 | Data transfer system A data transfer system for data transfer between a plurality of information processors connected to a communication line comprises at least one specified sending information processor and one specified receiving information processor. The sending informat... | 01/06/1998 |
| 5706428 | Multirate wireless data communication system A wireless LAN includes first stations adapted to operate at a 1 or a 2 Mbps data rate and second stations adapted to operate at a 1,2,5 or 8 Mbps data rate. The 1 and 2 Mbps rates use DBPSK and DQPSK modulation, respectively. The 5 and 8 Mbps rates use P... | 01/06/1998 |
| 5703872 | Intelligent concentrator for multiple speed data communications systems An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communicat... | 12/30/1997 |
