Abstract: Mobile terminals include a housing, an electronic circuit and a speaker assembly positioned in the housing. The speaker assembly includes a first speaker positioned adjacent a first side of the electronic circuit and a second speaker positioned adjacent the first speaker on the first side of the electronic circuit. A grommet may be positioned in the housing that is configured to receive the first speaker and the second speaker and the first speaker and the second speaker are positioned in the grommet. The first speaker can be a receiver speaker and the second speaker can be a micro-speaker.

Abstract: A scanning mechanism of one embodiment of the invention is disclosed that includes light-emitting units, an integrating detector, and pulse-width modulated (PWM) drivers. Each light-emitting unit can emit colored light corresponding to a color of a color space. The integrating detector can detect the colored light emitted by the light-emitting units as reflected off a surface by integrating the colored light detected over a period of time. Each PWM driver can turn on a corresponding light-emitting unit at a duty cycle.

Abstract: A fluid-ejection mechanism of one embodiment of the invention is disclosed that includes one or more electrical contacts and one or more electrically grounded electrostatic discharge (ESD) shunt mechanisms. The electrical contacts make contact with corresponding contacts of one or more fluid-ejection assemblies that are otherwise exposed. The ESD shunt mechanisms to protect the electrical contacts from ESD when the electrical contacts are exposed.

Abstract: A housing for protectively shielding control sensors detectors, or similar devices from harsh work environments. The housing comprises an enclosure having a sensing area transparent to electromagnetic waves. The sensing area is protected by a material that is arranged in an overlaying relation thereto, and which is of sufficient thickness to effectively protect the sensing area of the housing from harsh work environments while allowing the control sensor to operate therethrough in a normal fashion. The protective material may take the form of a laminate applied to a cap covering the sensing area, or the cap itself and/or housing may be made from the protective material. Preferably, the protective material includes material having a low coefficient of friction such as molybdenum disulfide, graphite, or polytetrafluoroethylene.

Abstract: A ladder leveling device including a gripping plate having an inner surface and an outer surface. The gripping plate has an elongated central slot therethrough that corresponding with a vertical slot extending through the bottom portion of each ladder leg. The central slot has a pair of threaded bolts adjustably disposed therein and extending outwardly therefrom. The outer surface has gripping teeth disposed thereon. The gripping plate has a plurality of apertures therethrough. The inner surface is positionable against the outside surface of the leg bottom portion with the apertures receiving screws therethrough to secure the gripping plate to the ladder. A leg extension is provided having a generally rectangular configuration, and inner and outer surfaces, the inner surface having gripping teeth disposed thereon. The leg extension has a pair of apertures therethrough in a spaced relationship. The leg extension is adjustably coupled with the gripping plate.

Abstract: Bipolar lipids are described which are able to form complexes with polyanions. The lipids comprise a cationic head linked to a hydrophobic backbone and a hydrophilic tail and are capable of self assembly to form stable complexes in aqueous solutions. The lipids are of particular use for the delivery of bioactive substances such as nucleic acids to cells in vitro and especially in vivo.

Abstract: An improved dialling code processor (12) that is adapted to connect to a telephone line (11) in parallel with other devices (13) that use the same telephone line (11). The processor (12) may operate by: (a) detecting at least one dialling signal placed on a telephone line (11), and (b) inverting the detector signal to form a modified signal, and (c) placing the modified signal on the telephone line (11), wherein the modified signal is adapted to substantially cancel out the original detected dialling signal on the telephone line (11).

Abstract: A housing for protectively shielding control sensors detectors, or similar devices from harsh work environments. The housing comprises an enclosure having a sensing area transparent to electromagnetic waves. The sensing area is protected by a material that is arranged in an overlaying relation thereto, and which is of sufficient thickness to effectively protect the sensing area of the housing from harsh work environments while allowing the control sensor to operate therethrough in a normal fashion. The protective material may take the form of a laminate applied to a cap covering the sensing area, or the cap itself and/or housing may be made from the protective material. Preferably, the protective material includes material having a low coefficient of friction such as molybdenum disulfide, graphite, or polytetrafluoroethylene.

Abstract: Bipolar lipids are described which are able to form complexes with polyanions. The lipids comprise a cationic head linked to a hydrophobic backbone and a hydrophilic tail and are capable of self assembly to form stable complexes in aqueous solutions. The lipids are of particular use for the delivery of bioactive substances such as nucleic acids to cells in vitro and especially in vivo.

Abstract: A ladder leveling device including a gripping plate having an inner surface and an outer surface. The gripping plate has an elongated central slot therethrough. The central slot has a pair of threaded bolts adjustably disposed therein and extending outwardly therefrom. The outer surface has gripping teeth disposed thereon. The gripping plate has a plurality of apertures therethrough. The inner surface is positionable against the leg of the ladder with the apertures receiving screws therethrough to secure the gripping plate to the leg of the ladder. A leg extension is provided having a generally rectangular configuration. The leg extension has inner and outer surfaces. The inner surface has gripping teeth disposed thereon. The leg extension has a pair of apertures therethrough in a spaced relationship.

Abstract: Compounds of formula (1) ##STR1## are described wherein Y represents a halogen atom or a group --OR.sup.1, where R.sup.1 is an optionally substituted alkyl group; R.sup.2 represents an optionally substituted cycloalkyl or cycloalkenyl group; R.sup.3 is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen or sulphur atoms or a group --N(R.sup.4)-- where R.sup.4 is a hydrogen atom or an alkyl group; X is --O--, --S--, or --N(R.sup.5)--, where R.sup.5 is a hydrogen or an alkyl group; with the proviso that when X is --O-- then R.sup.3 is not a 3-cyanamino-6-pyridazinyl or a 3-chloro-6-pyridazinyl group; and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective and potent inhibitors of phosphodiesterase IV and are useful for the prophylaxis and treatment of inflammatory diseases and the alleviation of conditions associated with central nervous malfunction.

Abstract: Compounds of general formula (1): ##STR1## wherein Y is a halogen atom or a group --OR.sup.1 where R.sup.1 is an optionally substituted alkyl group;X is --O--, --S-- or --N(R.sup.8)--, where R.sup.8 is a hydrogen atom or an alkyl group;R.sup.2 is an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group;R.sup.3 is a hydrogen or halogen atom or an --OR.sup.9 group, where R.sup.9 is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkoxyalkyl, or alkanoyl group, or a formyl, carboxamido or thiocarboxamido group;R.sup.4 is a group --(CH.sub.2).sub.n Ar, where Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms and n is zero or an integer 1,2 or 3;R.sup.5 is a C.sub.3-9 carbocyclic ketone optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms;R.sup.6 is a hydrogen atom or an optionally substituted alkyl group;R.sup.

Abstract: A telephone dialling code processor intercepts outgoing dialling codes such as tones or pulses from a telephone terminal or the like and if the sequence matches a stored sequence it transmits a modified sequence of tones or pulses so that for example a telephone exchange is caused to make the connection along an alternative path or to provide enhanced services. Block 105 monitors the line condition along with block 109 which senses line current in the telephone line 112 and thus the state of the telephone terminal. A muting circuit 101 is used to interrupt or nullify the original dialling tones, a dial tone decoder/receiver 110, storage of predetermined dialling sequences is at 103, a dialling tone encoder/generator 106 reconstructs a replacement dialling sequence and all are controlled by a microprocessor 107 with program memory. Internal power can be derived from the telephone line by 102.

Abstract: An angular displacement sensor for determining the location of a rotating element such as a power clamp, fixedly attached to the power clamp adjacent the clamp arm. Specifically, the angular displacement sensor includes a rotating portion within a stationary housing, the rotating portion being directly connected to the axle that attaches the clamp arm to the connecting rods driven by the piston. By sensing the position of the rotating portion of the angular displacement sensor, which is directly connected to the axle and thereby rotates in direct proportion to the movement of the clamp arm, the sensor may easily determine the position of the clamp arm.

Abstract: Compounds of formula (1) ##STR1## are described wherein Y represents a halogen atom or a group --OR.sup.1, where R.sup.1 is an optionally substituted alkyl group; R.sup.2 represents an optionally substituted cycloalkyl or cycloalkenyl group; R.sup.3 is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen or sulphur atoms or a group --N(R.sup.4)-- where R.sup.4 is a hydrogen atom or an alkyl group; X is --O--, --S--, or --N(R.sup.4)--, where R.sup.5 is a hydrogen or an alkyl group; with the proviso that when X is --O-- then R.sup.3 is not a 3-cyanamino-6-pyridazinyl or a 3-chloro-6-pyridazinyl group; and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective and potent inhibitors of phosphodiesterase IV and are useful for the prophylaxis and treatment of inflammatory diseases and the alleviation of conditions associated with central nervous malfunction.

Abstract: An automated portable cutting machine for severing kernels from ears of corn and which includes adjustable cob supporting spindles which rotatably support the ear of corn relative to an adjustable cutting element which is longitudinally moved with respect thereto by manual operation of a tracking element with a power shaft driven by the drive source for the rotatable spindles.

Abstract: Poly(5-hydroxycytidylic acids), produced by the enzymatic polymerization of 5-hydroxycytidylic acid, possess the ability to induce the production of interferon and, furthermore, exhibit anti-viral properties.