摘要:
The present invention relates to a getter placement and attachment assembly for securing and placement of the getter along the major axis of a CRT. The getter placement and attachment assembly includes a getter spring for removably securing the getter to an internal magnetic shield affixed to the frame of the color selection electrode or mask frame of a CRT. The internal magnetic shield has sidewalls enclosures with a plurality of apertures therethrough along the major axis of the CRT to permit optimum deposition of a getter film within the CRT.
摘要:
The present invention provides a focus mask and frame assembly for a cathode ray tube. The cathode ray tube includes an evacuated envelope enclosing a luminescent screen, a focus mask, and a support frame having at least two long sides for supporting the focus mask between the electron gun and the screen within the cathode ray tube. The focus mask has an active array area formed of a plurality of strands and cross wires separated by an insulating material and defining a plurality of focusing apertures within the array area. A border is attached to the strands opposite the insulating material along the upper and lower outer edges of the active array area. The borders extend into the active array area such that the cross wires overlie a portion of the borders and the borders form focusing apertures with the strands along the upper and lower edges of the array.
摘要:
Modern portable communications units, and in particular cellular telephones, can contain several frequency bands for receiving and several frequency bands for transmitting signals. Typically these units contain a baseband unit and a frequency synthesizer unit, which may be embodied as VLSI integrated circuits. The baseband unit commonly contains the user interfaces and control signals for controlling other portions of the circuitry. The second unit is sometimes called a frequency synthesizer unit. The second unit is dedicated to producing frequencies that are used by the communications system to create RF signals for broadcast and also to take RF signals and extract the modulated signal from them for decoding. As personal communications units have begun using an increasing number of bands it is often necessary to configure different filters to receive or broadcast the different bands. Typically, the baseband Integrated Circuit or separate circuitry does this filter configuration management. The data for filter switching, however, can be decoded from the data that is communicated across the serial bus to the frequency synthesizer integrated circuit. By allowing the frequency synthesizer Integrated Circuit to control the filtering as well as the frequency synthesizer functions, integrated circuit pins can be eliminated from the baseband integrated circuit. In addition, timing and latency problems involved with commanding the frequency change over a serial bus and switching filters directly are eliminated.
摘要:
The present invention provides an improvement in a color picture tube having a tension mask supported by a support frame mounted within said tube. The mask has a significantly lower coefficient of thermal expansion than the frame. The frame has two substantially parallel cantilevered members, each member has a distal edge to which the tension mask is attached. At least one of the distal edges has two sections separated by a gap therebetween. The two sections include an inner section and an outer section. The mask is glued to the inner section and is welded to the outer section.
摘要:
An improved method of processing a molten non-ferrous metal and alloys of the metal using a blanketing gas having a global warming potential is provided. The improvement involves reducing the global warming potential of the blanketing gas by blanketing the molten non-ferrous metal and alloys with a gaseous mixture including at least one compound selected from the group consisting of SO2F2, NF3, SO2CLF, SOF4, and NOF.
摘要:
A system and method implement a virtual reality (VR) keyboard. The VR keyboard system and method receive a VR glove position, generate a corresponding key code from the VR glove position using a predetermined mapping, and send the key code to an application program as a key input corresponding to a keyboard and/or keypad entrap of data and/or a command. The system and method also generate a display representing the key input based in on the VR glove position. The display of the key input may include, but is to limited to, a displayed depressed key in a VR headset of a VR representation of a VR keyboard indicating the key input. The system and method implementing a virtual reality keyboard addresses and solves numerous difficulties of physical and/or hardware-based input devices and provides many diverse advantages in use and applications.
摘要:
Compounds of Formula I, and their N-oxides and agriculturally suitable salts, are disclosed which are useful as fungicides wherein W is O, S(O)n or NR5; n is 0, 1 or 2; Q is O or S; G is a fused phenyl, naphthalene, thiophene, furan, pyrrole, pyridine, thiazole, oxazole, imidazole, pyrazine, pyridazine or pyrimidine ring; and R1-R5 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula I and a method for controlling plant diseases caused by fungal plant pathogens which involves applying an effective amount of a compound of Formula I.
摘要:
Methods and apparatus for providing virtual local connection of one PC to another PC, a PC to a LAN and from one LAN to another LAN, over a synchronous digital wide area network (effectively enabling a LAN to be extended through a synchronous digital wide area network on a virtual basis), using a PC adapter card that includes an on board Data Service Unit (DSU)/Channel Service Unit (CSU), driven by control means that functions at least in part as a LAN interface emulator. The invention includes methods (and corresponding apparatus) for configuring the PC adapter card under program control; for establishing connectivity between at least one PC and at least one LAN, each separately connected to the network, via a gateway access thru the digital wide area network; and for utilizing the PC motherboard microprocessor to run user applications software while simultaneously being able to handle the real time constraints of running packet protocols (e.g., Frame Relay, X.25, SMDS, etc.), using a novel control means.
摘要:
This invention provides advantageous processes for preparing quinazolinones of Formula I ##STR1## wherein: R.sup.1 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; or C.sub.3 -C.sub.10 alkynyl;R.sup.2 is C.sub.1 -C.sub.10 alkyl; C.sub.3 -C.sub.10 alkenyl; C.sub.3 -C.sub.10 cycloalkyl; C.sub.3 -C.sub.10 halocycloalkyl; C.sub.4 -C.sub.10 cycloalkylalkyl; C.sub.4 -C.sub.10 halocycloalkylalkyl; C.sub.4 -C.sub.10 cycloalkyl; C.sub.4 -C.sub.10 halocycloalkyl; or C.sub.3 -C.sub.10 alkynyl; andR.sup.3 and R.sup.4 are each independently hydrogen or halogen; from compounds containing the moiety IIg ##STR2## This invention further provides certain compounds of Formula II, IIIa, or IVa ##STR3## where R.sup.7 is C.sub.2 -C.sub.6 alkyl.
摘要翻译:PCT No.PCT / US97 / 10254 Sec。 371 1998年12月9日第 102(e)日期1998年12月9日PCT提交1997年6月12日PCT公布。 公开号WO97 / 48684 日期1997年12月24日本发明提供了制备式I的喹唑啉酮的有利方法,其中:R1是C1-C10烷基; C 3 -C 10烯基; C3-C10环烷基; C 3 -C 10卤代环烷基; C4-C10环烷基烷基; C 4 -C 10卤代环烷基烷基; 或C 3 -C 10炔基; R2是C1-C10烷基; C 3 -C 10烯基; C3-C10环烷基; C 3 -C 10卤代环烷基; C4-C10环烷基烷基; C 4 -C 10卤代环烷基烷基; C4-C10环烷基; C 4 -C 10卤代环烷基; 或C 3 -C 10炔基; 且R 3和R 4各自独立地为氢或卤素; 含有部分IIg的化合物本发明进一步提供某些其中R 7为C 2 -C 6烷基的式II,IIIa或IVa化合物。
摘要:
The present invention permits solder joints to be made directly to via and through holes without the solder being wicked into the vias or through holes, by filling plated through holes with an epoxy or cyanate fill composition. When cured and overplated, the fill composition provides support for the solder joint and provides a flat solderable surface for the inter-connection. In certain embodiments, the cured fill compositions, offer a further advantage of being conductive. The invention also relates to several novel methods for filling through holes with such fill compositions, and to resistors located in through holes and vias.