摘要:
In one embodiment, a router examines an incoming packet for a flow monitoring request. The router may examine every packet for the flow monitoring request, or preferably may only examine packets including a lifetime value indicating that the packet should be dropped and not forwarded or may only examine packets having a predetermined message format. When the flow monitoring request is included, the router performs detailed flow analysis or other monitoring according to the flow monitoring request.
摘要:
This invention relates to compositions for the sustained release of biologically active polypeptides, and methods of forming and using said compositions, for the sustained release of biologically active polypeptides. The sustained release compositions of this invention comprise a biocompatible polymer having dispersed therein, a biologically active polypeptide and a sugar.
摘要:
A method for directly converting packet-based voice data of two non-compatible formats, (e.g., VoIP and VOATM), is described. A VoIP call agent sets a connection between a VoIP edge gateway and an interworking unit (IWU). The IWU allows the VoATM network to appear as a TDM network to the VoIP call agent. The VoIP call agent selects a virtual trunk group and channel identification code through the interworking unit and transmits the selection to a VoATM call agent. The IWU allows the VoIP network to appear as a TDM network to the VoATM call agent such that the VoATM call agent establishes a connection between the virtual trunk group and a VoATM network device. The IWU allows the VoATM network to appear as a TDM network to the VoIP call agent such that the VoIP call agent establishes a connection between the virtual trunk group and a VoIP network device.
摘要:
A semiconductor device includes a first field effect transistor including a source and a gate and disposed in a silicon carbide substrate; and a second field effect transistor including a drain and a gate and disposed in the substrate. The drain of the second field effect transistor connects to the source of the first field effect transistor. The gate of the second field effect transistor connects to the gate of the first field effect transistor.
摘要:
A silicon carbide semiconductor device that includes J-FETs has a drift layer of epitaxially grown silicon carbide having a lower impurity concentration level than a substrate on which the drift layer is formed. Trenches are formed in the surface of the drift layer, and first gate areas are formed on inner walls of the trenches. Second gate areas are formed in isolation from the first gate areas. A source area is formed on channel areas, which are located between the first and second gate areas in the drift layer. A method of manufacturing the device ensures uniform channel layer quality, which allows the device to have a normally-off characteristic, small size, and a low likelihood of defects.
摘要:
A semiconductor device includes a first field effect transistor including a source and a gate and disposed in a silicon carbide substrate; and a second field effect transistor including a drain and a gate and disposed in the substrate. The drain of the second field effect transistor connects to the source of the first field effect transistor. The gate of the second field effect transistor connects to the gate of the first field effect transistor.
摘要:
A silicon carbide semiconductor device includes: a semiconductor substrate including first and second gate layers, a channel layer, a source layer, and a trench; a gate wiring having a first portion and a plurality of second portions; and a source wiring having a third portion and a plurality of fourth portions. The trench extends in a predetermined extending direction. The first portion connects to the first gate layer in the trench, and extends to the extending direction. The second portions protrude perpendicularly to be a comb shape. The third portion extends to the extending direction. The fourth portions protrude perpendicularly to be a comb shape, and electrically connect to the source layer. Each of the second portions connects to the second gate layer through a contact hole.
摘要:
Methods and apparatus are disclosed for changing the bandwidth or other traffic characteristic of an established packet call in response to an identification of the requirements of the call. For example, in response to the detection of a type of call, such as a fax or modem call, ATM signaling is performed with peer signaling agent(s) located in the ATM network to increase the bandwidth of an already established portion of a call through the ATM network. This signaling typically includes sending a call modify request message and receiving a modify acknowledgement message, with these messages typically, but not limited to, conforming with a Q.2963 signaling standard.
摘要:
A method that sends ATM source identification and an ATM-TDM correlation tag from an ATM source gateway to a telephony signaling control network; and then receives at an ATM destination gateway the ATM source identification and the ATM-TDM correlation tag as sent from the telephony signaling control network; and then sends the ATM-TDM correlation tag from the ATM destination gateway to the ATM source gateway to establish a connection between the ATM destination gateway and the ATM source gateway.
摘要:
Methods for preparing microparticles having reduced residual solvent levels. Microparticles are contacted with a non-aqueous washing system to reduce the level of residual solvent in the microparticles. Preferred non-aqueous washing systems include 100% ethanol and a blend of ethanol and heptane. A solvent blend of a hardening solvent and a washing solvent can be used to harden and wash microparticles in a single step, thereby eliminating the need for a post-hardening wash step.