摘要:
In a mobile communication system having an ATM-processed transfer path, a non-instantaneous interrupt handover can be realized. In a mobile communication network including an ATM-processed transfer path, when a mobile station is moved between cells during communication, frames are received to be identified by a mobile switching center. The frames contain the same data received from both base stations covering the cell range at asynchronous timing different from each other. A selection is made of header information with the lowest error rate from the header information of these frames. The frames are connected at instructed timing. Also, the frames to be transmitted to a plurality of base stations are duplicated, and then transmission timing is specified from these header information. These duplicated frames are transmitted at the specified transmission timing, so that the non-instantaneous interrupt handover is carried out.
摘要:
A memory cell in a semiconductor memory device comprises a variable resistor element configured so that a variable resistor body is sandwiched between a first electrode and a second electrode, and a transistor element capable of controlling a flow of current in the variable resistor element, wherein the transistor element and the variable resistor element are placed one over the other along a direction in which the first electrode, the variable resistor body, and the second electrode of the variable resistor element are layered, and one of the first electrode and the second electrode of the variable resistor element is connected to one electrode of the transistor element.
摘要:
A fuel distribution apparatus for a V-type engine wherein first and second throttle bodies connected to first and second banks disposed in a V shape, respectively, are disposed therebetween and a main fuel distribution pipe for distributing fuel from a common fuel supply system is connected to first and second fuel injection valves provided in the first and second throttle bodies, respectively, is configured such that the fuel distribution pipe is formed from first and second distribution pipes separate from each other and connected to the first and second fuel injection valves and besides fastened to the first and second throttle bodies, respectively, a joint pipe connects the fuel supply to the first or second distribution pipes. Communication conduit connects the first and second distribution pipes.
摘要:
There is provided a transmitter receiver apparatus in which a directional coupler and single pole double throw (SPDT) switches are includes on the reception side. In the directional coupler, a reception signal is inputted and split into two signals having phases different from each other by 90° and the two split signals are outputted to SPDTs. Each of the SPDTs outputs each of the split signals to an output terminal connected to an amplifier during a passage mode and to a terminal terminated with a predetermined impedance during a blocking mode.
摘要:
A method for controlling the temperature gradient on the side surface of a silicon single crystal, the height of a solid-liquid interface, and the oxygen concentration in the longitudinal direction of the silicon single crystal is provided in order to manufacture a defect-free silicon single crystal whose oxygen concentration is controlled to a predetermined value rapidly and stably. By disposing a cylindrical cooler around the silicon single crystal, and adjusting the pulling speed of the silicon single crystal, the rotation speed of a crucible that stores molten silicon and the rotation speed of the silicon single crystal, and the output ratio of a multi-heater separated into at least two in the longitudinal direction of the silicon single crystal disposed around the crucible, the temperature gradient on the side surface, the height of the solid-liquid interface, and the oxygen concentration in the longitudinal direction of the silicon single crystal are controlled.
摘要:
The present invention provides a semiconductor memory device having one or more protruding semiconductor layers formed on a semiconductor substrate of a first conductivity type and a plurality of memory cells on surfaces of the protruding semiconductor layers, wherein each of the memory cells is formed of a charge storage layer, a control gate and an impurity diffusion layer of a second conductivity type which is formed in a portion of the protruding semiconductor layer and the plurality of memory cells is aligned to at least a predetermined direction, and the control gates of the plurality of memory cells is aligned to the predetermined direction are placed so as to be separated from each other.
摘要:
A packet forwarding apparatus with a function of registering packet forwarding control information for each user terminal into a user management table during PPPoE connection and authentication phases in which the apparatus carries out predetermined communication procedures with each user terminal. During DHCP and IP forwarding phases following the authentication phase, the packet forwarding apparatus controls packet forwarding based on the user management table. Packets are forwarded in the form of PPPoE frame until the authentication phase is completed and packets are forwarded in the form of Ethernet frame in the DHCP and IP forwarding phases.
摘要:
A film forming apparatus is provided that can prevent source gases from reacting together before reaching the substrate being processed in the apparatus, minimize the influence of the radiation heat from the substrate, and make the gas behavior in the reaction chamber better for crystal film formation. The apparatus forms a film on a surface of a heated substrate 5 by causing a first source gas and a second source gas to react together. The apparatus has a processing chamber 1, in which the substrate 5 is placed. The processing chamber 1 is divided into a heating chamber 1a and a reaction chamber 1b by at least the substrate 5 so that the substrate surface can be exposed to the source gases in the reaction chamber 1b. The apparatus further has an exhaust duct 7, through which the exhaust gas can be discharged. The exhaust duct 7 faces the exposed substrate surface and connects with the reaction chamber 1b. The apparatus further has first supply ports 11 and second supply ports 12, through which the first and second source gases respectively can be supplied independently onto the substrate surface. The supply ports 11 and 12 are positioned outside the exhaust duct 7. This enables the source gases to react immediately near the substrate 5 so that high-quality crystal film formation can be performed on the substrate.
摘要:
When multicast distribution is performed on a network where a point-to-point connection is made between user terminals and a multicast router, the multicast router is protected from load due to response reports, join requests, or leave statements sent from the user terminals simultaneously. If the user terminals send response reports simultaneously, a Layer 2 switch disposed between the user terminals and the multicast router limits response reports sent to the multicast router. The Layer 2 switch prevents response reports sent from the same user terminal from being discarded consecutively, by sending a response report sent from the same user terminal to the multicast router 200 with priority in the next join confirmation event. If the user terminals send join requests or leave statements simultaneously, the Layer 2 switch limits the join requests or leave statements sent to the multicast router 200 in the same manner. The Layer 2 switch further enlarges a transmission buffer thereof at the multicast router side, so that the packets can be stored in the buffer.
摘要:
A retractable seat device includes a seat body having first and second ends rotatably connected to rear and front legs, respectively, first and second arms, and a link. When the first arm is rotated in a second direction, the rear leg and the front leg connected to the rear leg with the link are unfolded, a rear lock mechanism provided on the rear leg becomes engaged with a first striker provided on the vehicle floor, and then a front lock mechanism provided on the front leg becomes engaged with a second striker provided on the vehicle floor, so that the seat body is supported on the vehicle floor by the rear leg and the front leg. The rear lock mechanism has an interlock structure including a ratchet and a pawl, and the front lock mechanism has a hook lock structure including a hook.