摘要:
This invention relates to an advertisement machine which provides advertisements to a user searching for desired information within a data network. The machine receives, from a user, a search request including a search argument corresponding to the desired information and searches, based upon the received search argument, a first database having data network related information to generate search results. It also correlating the received search argument to a particular advertisement in a second database having advertisement related information. The search results together with the particular advertisement are provided by the machine to the user.
摘要:
A system and method for managing a virtual private network. The system and method include a graphical user interface. The graphical user interface is configured to display at least one link for accessing, via the interne, a web-page associated with a switch offering virtual private network functions.
摘要:
A high speed non-volatile electronic memory configuration and method is disclosed. In one particular exemplary embodiment, the high speed non-volatile electronic memory configuration may be realized comprising a high speed volatile memory, a non-volatile memory coupled to the high speed volatile memory, a controller coupled to the high speed volatile memory and the non-volatile memory, and a power level detector that detects when power is above a particular minimum operating voltage level. The controller monitors data storage changes made within the high speed volatile memory and controls the transfer of stored data from the high speed volatile memory to the non-volatile memory, and vice-versa, when power is above the particular minimum operating voltage level.
摘要:
A multiple access telecommunication system is provided, which makes use of chaotic signals. Each transmitter has a chaotic system, which has at least one strange attractor in its phase space, and each receiver has chaotic systems, which corresponds to those in the transmitters from which it may receive signals. Each pair of users is assigned a set of periodic unstable orbits from a strange attractor, which that pair of users may use for signalling. At the transmitter side, a multiplexer receives data from plurality of users. These data are multiplexed in time, to produce an asynchronous data stream. The data stream is then mapped to a sequence of chaotic signals, in accordance with the set of trajectories for each transmitter and receiver pair.
摘要:
A communications network has a plurality of nodes interconnected by an optical transmission medium. The transmission medium is capable of a carrying a plurality of wavelengths organized into bands. A filter at each node for drops a band associated therewith and passively forwards other bands through the transmission medium. A device is provided at each node for adding a band to the transmission medium. Communication can be established directly between a pair of nodes in the network sharing a common band without the active intervention of any intervening node. This allows the network to be protocol independent. Also, the low losses incurred by the passive filters permit relatively long path lengths without optical amplification.
摘要:
A system for collecting and aggregating data from network entities for a data consuming application is described. The system includes a data collector layer to receive network flow information from the network entities and to produce records based on the information. The system also includes a flow aggregation layer fed from the data collection layer and coupled to a storage device. The flow aggregation layer receiving records produced by the data collector layer and aggregates received records. The system can also include an equipment interface layer coupled to the data collector layer and a distribution layer to obtain selected information stored in the storage device and to distribute the select information to a requesting, data consuming application.
摘要:
A method and apparatus is provided for locating with improved vertical positioning accuracy a discrete element on a semiconductor optoelectronic integrated circuit. The method employs an etch stop layer located beneath a series of semiconductor layers. The semiconductor layers may include waveguides to couple light between integrated or discrete elements. Pits with accurate depth are etched in the semiconductor layers down to the etch stop layer. Accurate alignment between a discrete element and another element is made possible by controlling their respective distances from the etch stop layer.
摘要:
In an enhanced partial packet discard (PPD) methodology, if an end-of-packet cell is discarded for non-PPD reasons, all non-end-of-packet cells of the immediately following packet are discarded. When an end-of-packet cell may validly be discarded, a switch faced with an end-of-packet cell may discard that cell if the last cell admitted to the buffer was an end-of-packet cell. To reduce the likelihood of having to drop end-of-packet cells, a buffer is configured to include a partial packet discard threshold such that the buffer space between that threshold and the end of the buffer is reserved for use by end-of-packet cells.
摘要:
A DPD (digital phase error) circuit for measuring the phase skew between a first and a second clock signal for use in a variety of control systems and more particularly for use in DPLL (digital phase-locked loop) synchronizers. The DPD includes an ROG (ring oscillator generator) which has a string of inverter gates forming an RO (ring oscillator) and a ring counter. The ring counter operates to monitor the time elapsed from the occurrence of a reset clock signal edge by recording the number of oscillation periods of the RO. The RO and ring counter are coupled to an ROC (ring oscillator capture) unit which operates to capture the state of the RO and ring counter for every occurrence of a respective first clock signal edge and second clock signal edge so as to accurately evaluate the time elapsed since the occurrence of the preceding reset clock signal edge. These measurements are routed to a CU (control unit) where they are processed to determine the actual phase error between the first and second clock signals. For each capture effected in the ROC, a highly accurate calibration signal generated to have a fixed phase deviation from the reset clock signal is received for capturing state of the RO and ring counter to determine the average inverter propagation delay of the inverter gates forming the RO and accordingly calibrate each phase error in accordance with the proper average inverter propagation delay.
摘要:
A method for managing forward link power control within a code-division multiple access mobile telephone communication network is disclosed. A mobile telephone communication network constantly monitors for a frame erasure reported by a mobile telephone. In response to the detection of a frame erasure, the mobile telephone's digital gain assigned to the mobile telephone by the mobile telephone communication network is increased by a step-up value to close the forward link. This step-up value may be different each time depending on the speed and position of the mobile telephone. Afterwards, the digital gain is continuously reduced in an exponential manner until another frame erasure is reported.