Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamp, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamp, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: At least one inline probe is employed to test compliance of a network element with a network traffic policy. The testing capability of the probe is handled by specialized software or hardware. The inline probes hardware can be implemented in network elements such as routers or transceivers. The inline probes can be discovered, registered, and controlled by a dedicated controller disposed at a remote location.

Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamps, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamps, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamps, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: At least one inline probe is employed to test compliance of a network element with a network traffic policy. The testing capability of the probe is handled by specialized software or hardware. The inline probes hardware can be implemented in network elements such as routers or transceivers. The inline probes can be discovered, registered, and controlled by a dedicated controller disposed at a remote location.

Abstract: A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamps, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Abstract: An automatic maintenance unit for a static print head used in a drop on demand inkjet printer is provided by a combination of a removable capping element to abut and cover ink ejection nozzles and a movable wiping element including a wiper to remove residual ink after removal of the capping element and before commencement of a print run, thereby avoiding the need for manual capping and decapping and cleaning of the print head and speeding up the printing cycle. The capping clement is preferably mounted pivotally so that it can be swung between a capping position between print runs and a retracted position during print runs, and the wiper is preferably mounted on a frame to move outwards and upwards from a retracted position adopted during print runs, to a position above the nozzles and then downwards across the nozzles to clean them prior to a print run before returning to the retracted position.

Abstract: A system for correlating and displaying dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication protocols, a first communication protocol, and a second communication protocol. The system also comprises a software code segment configured to detect correlation data identifying a first call portion associated with the first communication protocol, and configured to detect correlation data identifying a second call portion associated with the second communication protocol, where the correlation data comprises components relating to the first communication protocol and the second communication protocol, and wherein the correlation data is detected in real time.

Abstract: An optical instrument for determining properties of the imaging and non-imaging areas of offset printing plates is disclosed. A laser light source (30) directs a laser beam (35) at the surface layer (50) of an offset printing plate (60). A specularly reflected beam (45) is detected by a light detector (40). Additionally. scattered light (55) is detected by a light detector (50). The detectors (40, 50) produce light intensity signals for the reflected and scattered light, respectively. A data processor (70) processes the intensity signals to determine various properties relating to the dampening solution and ink present on the non-imaging and imaging areas of the printing plate, respectively. These properties include the thickness of dampening solution in non-imaging areas, the image density in imaging areas of a moving printing plate, and the occurrence of scumming in non-imaging areas of a printing plate.

Abstract: A tap device comprises a network entry connection, a network exit connection, and a network interconnection path there between. A high impedance tap circuit is electrically connected to the network connection path, and comprises an isolation transformer and active buffer element. Advantageously, a power interruption to said tap circuit does not affect network communications.

Abstract: An optical instrument for determining properties of the imaging and non-imaging areas of offset printing plates is disclosed. A laser light source (30) directs a laser beam (35) at the surface layer (50) of an offset printing plate (60). A specularly reflected beam (45) is detected by a light detector (40). Additionally. scattered light (55) is detected by a light detector (50). The detectors (40, 50) produce light intensity signals for the reflected and scattered light, respectively. A data processor (70) processes the intensity signals to determine various properties relating to the dampening solution and ink present on the non-imaging and imaging areas of the printing plate, respectively. These properties include the thickness of dampening solution in non-imaging areas, the image density in imaging areas of a moving printing plate, and the occurrence of scumming in non-imaging areas of a printing plate.

Abstract: The present invention provides a biosensor comprising an electrode and a membrane in which the biosensor includes at least two zones each zone differing from each other zone in a property. The membrane includes a plurality of ionophores, at least a proportion of which are capable of lateral diffusion within the membrane. A plurality of first binding partner molecules are attached to membrane elements positioned within a first zone such that the first binding partner molecules are prevented from diffusing laterally into a second zone. Second binding partner molecules are attached to the ionophores and the rate of lateral diffusion within the membrane of the first binding partner molecules and second binding partner molecules is different.

Abstract: Apparatus for producing carbonation flavoured drinks has a number of features. Water introduced to a water break from the mains supply holds a value open whilst the carbonation chamber is being filled. A concentrate supply includes a metering chamber into which concentrate flows under gravity and from which concentrate is discharged by gas pressure. The concentrate containers include means to indicate the type of concentrate therein and the degree of carbonation of water is controlled by detecting this indication. Change-over from one gas supply bottle to another is achieved utilising the pressure of the gas in the bottle to displace an element which effects the change-over. Concentrate in supply containers thereof is cooled by coolant used from cooling the carbonation chamber.

Abstract: A connector for a bottle of concentrate for a carbonating apparatus has a cylindrical body the upper end of which carries a structure defining a number of radially extending baffle and a central opening through which a dip tube may be inserted into the bottle. A latching ring for connecting the connector to the carbonation apparatus is carried by the body at a position outwardly thereof and lower than the baffle structure. The latching ring is constructed to snap on to a corresponding boss on the carbonation apparatus. The bottle is detached from the carbonation apparatus, after exhaustion of the contents, by removal of a tear-off strip which connects the latching ring to the body of the cxonnector. To facilitate connection of a fresh bottle of concentrate to the apparatus, the apparatus includes a housing which is detachable from the remainder of the apparatus and which carries the dip tube and other elements co-operable with the connector for attaching the bottle.

Abstract: Water carbonation apparatus for dispensing flavored carbonated drinks supplies carbonation gas to at least two carbonation chambers in each of which water is carbonated and thereafter dispensed to provide a drink. The apparatus has a carbonation selector valve for determining a sequence in which carbonation gas is supplied from the gas supply to each carbonation chamber, and a chamber selector valve for controlling the dispensing of carbonated water from the carbonation chambers in accordance with the desired sequence. The sequence of operations is controlled by a control circuit so that the sequencing of gas supply to and evacuation from the chambers is controlled in conjunction with the operation of the chamber selector valve.

Abstract: A connector for a bottle of concentrate for a carbonating apparatus has a cylindrical body the upper end of which carries a structure defining a number of radially extending baffle and a central opening through which a dip tube may be inserted into the bottle. A latching ring for connecting the connector to the carbonation apparatus is carried by the body at a position outwardly thereof and lower than the baffle structure. The latching ring is constructed to snap on to a corresponding boss on the carbonation apparatus. The bottle is detached from the carbonation apparatus, after exhaustion of the contents, by removal of a tear-off strip which connects the latching ring to the body of the connector. To facilitate connection of a fresh bottle of concentrate to the apparatus, the apparatus includes a housing which is detachable from the remainder of the apparatus and which carries the dip tube and other elements co-operable with the connector for attaching the bottle.

Abstract: A connector for connecting a carbon dioxide cylinder to a carbonation apparatus includes a female part having a cylindrical recess for receiving a male part carried by the carbonation apparatus. An axially movable actuator extending through the male part projects through a central passage at the bottom of the cylindrical recess to engage a valve member for opening the valve. The actuator is in three parts and the center part itself forms a valve which is closed when the actuator is depressed for supplying carbon dioxide from the cylinder to a carbonation chamber but which, when the actuator is released, may open response to pressure in the carbonation chamber for supplying carbon dioxide therefrom to another part of the apparatus, such as a concentrate supply device.

Abstract: A pressure vessel has an excess pressure release device comprising a passage between the interior and the exterior of the pressure vessel, a bursting disc seated in the passage, and a flexible membrane mounted adjacent to the disc between the interior of the vessel and the disc so as to seal the passage and hold the disc captive without the disc being clamped. The excess pressure release device may be used in connection with any pressure vessel requiring an excess pressure release device of the bursting-disc type. The device is particularly suitable for use in the dispensing valve of a home carbonation apparatus.