Abstract:
La presente invencion proporciona un aparato optico que incluye un primer dispositivo de asignacion de ruta de frecuencia que tiene al menos un puerto de entrada y P puertos de salida, en donde P >_ 2. También proporciona un segundo dispositivo de asignacion de ruta de frecuencia que tiene P puertos de entrada y al menos un puerto de salida. P trayectorias opticas conectan o acoplan el puerto de entrada del primer dispositivo de asignacion de ruta de frecuencia al puerto de salida del segundo dispositivo de asignacion de ruta de frecuencia (FIGURA 3).
Abstract:
La invencion tiene por objetivo un encristalado con sistema activo (14, 16), con propiedades opticas y/o energéticas variables, principalmente del tipo del sistema con transmision/absorcion luminosa (4), del tipo de sistema con difusion luminosa variable (16), o fotocromo. Este incluye igualmente al menos un medio de proteccion térmico frente al sistema activo y/o de ajuste del aspecto optico conferido por dicho sistema al encristalado, medio bajo la forma de al menos un revestimiento (6; 17) con propiedades de reflexion en el infrarrojo y/o en el ultravioleta y/o en el visible.
Abstract:
Prior art quiet docking and undocking method used an interface that was located within notebook computer (10), thus adding to the cost, complexity, weight, and power consumption of the notebook computer (10). The present invention provides for an apparatus for quiet docking of a notebook computer (10) to a docking station (11), including interface circuitry located within the docking station. The interface detects when the notebook computer (10) has been inserted within the docking station (11), and correspondingly enables a switch such that a common system bus is coupled between the notebook computer (10) and docking station (11). The interface also generates events to allow a software routine to configure the notebook computer (10) and docking station (11) without prior user intervention. The interface also includes cicuitry to detect an undock request, and correspondingly undock the computer such that a transaction occurring on the system bus is not affected.
Abstract:
A multiple interface input/output port (11) allows communications between an interface bus (14) of a peripheral device (10) and any one of a plurality of different types of interface buses (18) that may be provided in a host computer (16). An interface bus detection circuit (22) detects which type of interface bus (18) the peripheral device (10) is connected to on the host computer (16), and communications are then routed through an appropriate interface adapter (26) that enables communication between the interface buses (18) of the peripheral device (10) and host computer (16). The interface bus detection circuit (22) compares signal levels on selected ones of the lines (45) of the interface bus (14) of the host computer (16) to a reference potential to determine which of the selected lines (45) are grounded. The circuit then identifies the type of the interface bus (18, 14) to which it is connected based on the determination of which of the selected lines (45) of the interface bus (14) are grounded.
Abstract:
Computer system (100) having host processor (102), DMA unit (104), host memory (106) and external memory (108) wherein DMA unit (104) controls transference of data between host memory (106) and external memory (108) based upon data transference parameters specified in chain descriptors created by host processor (102) and stored as data structures within host memory (106). Dynamic appending of chain descriptors is achieved by employing resume bit stored within register (10) of DMA unit (104). Host processor (102), upon creating new group of chain descriptors to be appended to previous group, updates link value within last chain descriptor for the previous group to point to the first chain descriptor of the new group and also sets the resume bit. DMA unit (104) reads chain descriptor parameters, including link values, they perform data transfer operation specified by the chain descriptor parameters. Upon completion of the transfer operation, DMA unit (104) examines the resume bit, and, if set, DMA unit (104) rereads the link value for the current chain descriptor.
Abstract:
The computer system includes a bus (28), a CPU (21) coupled to the bus (28), and a memory (22) coupled to the bus (28). A peripheral device (25) is coupled to the bus (28) for performing a predefined peripheral operation. A logic (24) is coupled to the bus (28) and the peripheral device (25) for causing the CPU (21) to be interrupted to control the peripheral device (25) when the logic (24) receives a request for the peripheral (25) operation. The logic (24) does not control the peripheral (25) operation. The request may be generated by a software program running on the CPU (21) or by the peripheral device (25). Although the CPU (21) is controlling the peripheral operation, the existing peripheral controller-based application software can still be used. A method for controlling the peripheral device (25) for the peripheral operation is also described.
Abstract:
Discharge tube apparatus includes an outer containing vessel 8 and a structure comprising five metal cylinders 10, 11, 12, 13 and 14 located coaxially within it. Each of the metal cylinders includes projecting spacers 15 on its outer surface which serve to space it from adjacent ones. Such a structure is thermally insulating and enables a large temperature difference to be maintained between the interior of the discharge tube and the outer containing vessel 8. In other embodiments (not shown), a plurality of structures are included disposed along the axis of the tube. Also dispenser segments for dispensing part of the amplifying medium of a metal vapour laser may be included and arranged to shield vulnerable surfaces in the tube from direct exposure to the discharge.
Abstract:
Eine Elektrode (5) zur Strahlaustastung, die einfach zu bedienen ist, zuverlässig ist und kurze Pulse ermöglicht, wird auf einer annähernden Äquipotentialfläche angeord net, wobei diese annähernde Äquipotentialfläche im Durch laßbetrieb nahe dem Kathodenpotential liegt.
Abstract:
A television camera tube with electrostatic focusing and magnetic deflection comprises in an cylindrical envelope (1) a beam current control section, a main lens section and a sixth grid in the form of a mesh electrode. The beam current control section includes a cathode (4), a first grid (5) and a second grid (6) with an electron beam limiting diaphragm (7) disposed in this order. The main lens section includes third, fourth and fifth grids (8, 9, 10) in the form of cylindrical electrodes disposed in this order. Around the cylindrical envelope is mounted a magnetic deflection coil (12) whose length (ℓ D ) along the envelope axis is 0.18 to 0.40 times the distance (L) from the beam limiting diaphragm (7) tho the mesh electrode (11).