Abstract: The present invention discloses a system and a method for transmitting DTMF signals over high speed digital networks using voice compression algorithms, and particularly to a system for ensuring the integrity of DTMF signals at the destination node of a network after compression and decompression of data on a voice connection. A DTMF Detector is placed in parallel with a voice compression unit performing the compression algorithm. When a candidate DTMF signal is detected, the signal component at the higher frequency in the candidate is filtered out to eliminate the possibility of double DTMF detection at end user equipment. When the candidate DTMF signal is finally validated by the source node as representing a true DTMF signal, only the data essential for reconstituting the DTMF signal are transferred to the destination node.

Abstract: Method and system aspects for securely transferring a computer system are described. A computer system is disabled at a shipping point via an RFID (radio frequency identification) interface and re-enabled at a receiving point via the RFID interface. Disabling the computer system includes selecting a boot password, writing the boot password to storage in the computer system via the RFID interface, and setting a disable bit in the storage via the, RFID interface. Re-enabling the computer system includes entering the boot password via the RFID interface and clearing the disable bit.

Abstract: Systems, methods and computer program products are provided for simultaneously transmitting data over a plurality of subscriber lines, such as twisted pair telephone wires, extending between a shared device and a respective plurality of remote devices using a symbol-based discrete multi-tone transmission scheme. A destination code within a first group of frequency bands and modulated data within a second group of frequency bands different from the first group of frequency bands, are transmitted from the shared device to the remote devices. The second group of frequency bands is selected for a subscriber line connected to a remote device having the destination code within the first group of frequency bands.

Abstract: A portable device having a base member and a hingedly attached lid member does not require a signal cable to transmit a high-frequency signal between the base unit and the lid. While the lid of the lap-top PC is closed, a radio device installed in the base unit transmits a high-frequency signal from a first antenna to a second antenna, the signal is then output from a signal cable attached third antenna to the atmosphere. The device structured as described above can transmit the high-frequency signal in a non-contact manner between the antenna of the base unit and the antenna of the lid in such a way that there is no need to provide a signal cable between the base unit part and the lid part.

Abstract: A personal computer scanner for scanning the three-dimensional (3D) objects has a frame with an axis, and a front plate. The front plate has a large array of axial pinholes that each contain a slidably movable pin to form a bed of pins. A detection device is slidably mounted near the rear of the frame. A stepper motor is used to move the detection device relative to frame. The detection device has a sensor plate on its front surface with an array of sensors that correspond one-to-one with the pins. The user selects an object to be scanned and inserts it into the bed of pins to form an impression. The pins readily move and comply to the contours of the object. After the impression is made, the detection device is slowly incremented by the stepper motor toward the pins. The individual sensors are monitored by a host computer until they have been contacted by their respective pins. When a sensor has been touched by its pin, the sensor is scanned by the computer to record the displacement of the pin.

Abstract: A method for compressing color video data within a data processing system is disclosed. A pixel, which includes multiple bits that forms a color value, is initially received. A determination is made as to whether or not the color value of the pixel falls within a predetermined tolerance range. If the color value of the pixel falls within the predetermined tolerance range, then a single-bit true signal is sent to a compressor. Otherwise, if the color value of the pixel does not fall within the predetermined tolerance range, then the entire color value of the pixel is sent to the compressor.

Abstract: The present application discloses a method and system of sharing reserved bandwidth among several connections issuing from a same physical port in an origin node of a packet switching communication network comprising a plurality of nodes interconnected with transmission links. At each request for establishing a connection i from an origin node to a destination node, the dependent connection management process: selects for connection i a routing path comprising one or a plurality of links from the origin node to the destination node: identifies on the selected path all consecutive links starting from the origin node and shared with another connection issuing from the same physical port; reserves on each link of these identified consecutive links an aggregate bandwidth for all connections issuing from the same physical port, said aggregate bandwidth being less than the sum of the bandwidth reserved for each connection considered individually.

Abstract: A WCDMA system includes a Base Station (BS) or forward transmitter and a pilot channel that transmits control signals between a Mobile Station (MS) and BS to reconfigure their transmitter/receiver according to the prediction of the channel power and channel power probability density function separated into three distinct equal probable regions. Data signals are encoded using a one-half Viterbi encoder and interleaved. The interleaved data bits are modulated using Quadrature Phase Shift Keying (QPSK) modulation. The QPSK data is multiplexed with the pilot channel and spread by an appropriate code in an OFDM transmitter modified by a long code. Output of the transmitter may be provided to two diverse antennas for reliable communications to the receiver. Data may be received at two diverse antennas. The outputs are provided to match filters coupled to a coherent rake receiver and a channel prediction system.

Abstract: The invention herein provides a supervisory circuit which is adapted to monitor an input signal and produce as an output signal, a parametric signal corresponding to the input signal. The circuit includes an input for receiving the input signal, and a stochastic processor coupled to the input for receiving the input signal and processing it to derive a signal that represents a parametric measure of the input signal. An output connected to said stochastic processor provides the parametric output signal as an output for supervisory purposes.

Abstract: In pause time based flow control systems having station-level granularity, a station or switch may detect congestion or incipient congestion and send a flow control frame to an upstream station, commanding that upstream station to temporarily stop (pause) sending data for a period of time specified in the flow control frame. The traffic pause gives the downstream station time to empty its buffers of at least some of the excess traffic it has been receiving. Since each downstream station operates independently in generating flow control frames, it is possible for the same upstream station to receive multiple, overlapping pause commands. If an upstream station which is already paused receives subsequent flow control frames from the same downstream station that triggered the pause, the upstream station's pause timer is rewritten using the pause times in the successive flow control frames.

Abstract: A method for improving next hop selection between internet routers (R) defined by their respective IP addresses. A source is identified by a source IP address and a source port identification. A destination or target is defined by a target port identification. Equivalent routes toward the destination host are identified conventionally. Each of the equivalent routes is defined by next router IP address. The source IP address, source port identification and target port identification are logically combined to derive a connection identifier (HO) for a first router common to all paths. An set of additional logical operations are performed to derive next hop selection identifiers. Final next hop route selection is based on predefined criterion.

Abstract: A system normally converts a parallel data word to a single serial data stream to use a high speed serial link. The parallel data word is partitioned into N sub-sets or nibbles and each nibble is then serialized and transmitted over N serial links using high speed differential drivers. Each of the N serialized nibbles are received in a differential receiver. The serialized nibbles are then coverted back into N parallel nibbles and the N parallel nibbles are then assembled back to the original parallel data word. To increase reliability, the received data is coupled to a tapped delay element having M stages of delay. A training sequence and algorithm are used to determine which of the taps of the delay element are a desired delay distance away from data transitions. These taps are then used to sample the incoming signals to reconstruct the parallel data word.

Abstract: A data processing system and method including a docking station and a portable computer capable of being coupled to the docking station are disclosed for securing the docking station, the portable computer, and for securing the attachment of the docking station to the portable computer. The portable computer is coupled to the docking station. A disconnection password is established. When the portable computer is disconnected from the docking station, a user is prompted for the disconnection password. The portable computer is disabled in response to a failure to correctly enter the disconnection password, wherein the portable computer is inoperable without a correct entry of the disconnection password. When a portable computer is connected to the docking station, a correct entry of a connection password is required. In response to a failure to correctly enter the connection password, access to the docking station is prohibited.

Abstract: A data processing system has one or more portions which are present or absent. The variant of the data processing system is automatically determined by means of an infra-red switch whose beam is broken when the one or more portions are absent and not being detected when said one or more portions are present and is not broken when the one or more portions are present. From the output of the infra-red switch, the variant of the data processing system is determined. The variant information is then stored in the data processing system.

Abstract: A method for configuring a data processing system that contains one or more first nonvolatile memories, one or more second nonvolatile memories, and processing resources that support at least first and second operating modes, begins with activation of the first operating mode. One or more secondary configuration routines that utilize a second operating mode are then found within the one or more second nonvolatile memories, and a list that identifies those secondary configuration routines is stored. After the list is stored, one or more primary configuration routines which utilize the first operating mode are located within the one or more first nonvolatile memories and executed. Also, all of the secondary configuration routines that do not correspond to any of the primary configuration routines are demarcated. Thereafter, the second operating mode is activated in lieu of the first operating mode, and the demarcated secondary configuration routines are executed.

Abstract: A method for determining the physical locations of a plurality of computers in a network is disclosed. The network includes a plurality of wall plates, each of the wall plates for coupling one of the computers to the network. The method and system comprises providing an additional information physical layer and logic in each of the wall plates. The method and system further comprises capturing and storing the system media access-controller (MAC) address of the connect computer in the additional logic of each of the plurality of wall plates and storing a physical address of the wall plate in the logic of each of the plurality of wall plates. The method and system also comprises providing a command from the network that will cause the system MAC address and the physical address of at least one of the plurality of computers to be provided to an application in the network.

Abstract: A switching system having at least two switch fabrics. Each fabric has a switch core and a set of SCAL (Switch Core Access Layer) receive and transmit elements. The switch cores are preferably located in the same physical area but the SCALs may be distributed in different physical areas. Port Adapters distributed at different physical areas are connected to the switch fabrics via a particular SCAL element so that each switch core can receive cells from any port adapter and conversely any port adapter may receive data from either switch core. Control logic assigns a particular switch core to one port adapter for normal operations while reserving the other switch core for use when the first core is out of service. Each switch core has a mask mechanism which uses the value in a mask register to alter a bitmap value which controls the routing process. The mask registers in the two switch cores are loaded with complementary values.

Abstract: The present invention relates to the field of information processing by digital computers and, more particularly, to a method and system, in an electronic spreadsheet, for easily swapping the protection mode of a cell between a protected mode and an unprotected mode, while preserving the mathematical formulas used in the protected mode The electronic spreadsheet includes a cell content manager with an interface for handling the content of user specified cells according to the read-only, protected mode where a cell is usually filled by a formula, and the read-write, unprotected mode with a free update of the cell by the spreadsheet user. Preferred display methodology is also described for representing the current mode of a given cell.

Abstract: Methods, systems and computer program products are provided which control message storms in a network by classifying multiple destination messages into a plurality of broadcast message classes based upon characteristics of the broadcast messages. The number of multiple destination messages for each class of broadcast messages of the plurality of classes of broadcast messages are then counted so as to provide a plurality of broadcast message class counts. Multiple destination messages of a class of broadcast messages are then selectively transmitted based upon the broadcast message class count for the class of broadcast messages.