Abstract:
An electric machine incorporates a brush assembly that provides an audible warning when the brush in the brush assembly approaches the end of its useable length. The brush incorporates a device incorporated into the brush or a brush design which cooperates with the brush holder to generate the noise. The noise provides a warning to the user of the electric machine that the useable length of the brush material is near.
Abstract:
A ballast for energizing a lamp at a lighting level selected from a plurality of lamp lighting levels. The ballast includes a buck converter circuit configured to receive a DC voltage signal having a substantially constant magnitude. The buck converter circuit has a duty cycle for generating a lamp voltage output signal from the DC voltage signal. The lamp voltage output signal has a magnitude that is varied by the duty cycle to energize the lamp at the plurality of lamp lighting levels. A controller is configured to receive a dim input signal indicative of the selected lamp lighting level and to provide a control signal to the buck converter circuit as a function of the dim input signal. The control signal indicates a particular duty cycle corresponding to a lamp voltage output signal having a magnitude for energizing the lamp at the selected lamp lighting level.
Abstract:
The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.
Abstract:
A ballast including an inverter circuit for providing an oscillating power signal for energizing at least one lamp. The inverter circuit includes a first transistor having a first gain and a second transistor having a second gain, each configured for alternately operating between a conductive state and a non-conductive state. The power signal has a waveform cycle comprising a first pulse generated when a first transistor operates in a conductive state, and a second pulse generated when the second transistor operates in a conductive state. The integral value of the first pulse of each waveform cycle of the power signal is different from the integral value of the second pulse of each waveform cycle such that a differential relationship between the first gain and the second gain is greater than or equal to a minimum value in order to minimize lamp striations.
Abstract:
A multi media payment device includes a banknote acceptor and a RF card reader, and also may include a magnetic card reader. A bezel assembly for connection to the bill acceptor preferably includes a reader unit to read magnetic swipe cards and contactless chip cards.
Abstract:
According to several embodiments of the invention, a radio frequency identification (RFID) interrogator utilizing a circuit to remove unwanted distortion from a received signal is described. The interrogator transmits a transmitted signal continuously, while receiving a received signal from a radio frequency identification (RFID) tags. The circuit samples the transmitted signal, and removes the unwanted distortion created by the transmitted signal from the received signal.
Abstract:
An optoelectronic device has a bright detector and a dark detector and reduces noise in the output of the bright detector using the output of the dark detector.
Abstract:
A switch fabric access scheduler is disclosed. An indication is received that a link included in a plurality of links to the switch fabric is next in order to be serviced by a queue scheduling process common to the plurality of links. The queue scheduling process common to the plurality of links is used to determine, in a manner at least partly independent of each other link in the plurality, a queue to be serviced by the link.
Abstract:
A photo-therapeutic, electrodeless lamp (10) comprising a closed-loop envelope (12) containing an arc generating and sustaining medium that includes mercury. A phosphor coating (14) is provided on the interior surface of the envelope (12). The phosphor coating is capable of generating a first radiation in response to excitation from 254 nm radiation and provides the first radiation having an energy output in the region of 335-430 nm. This wavelength region is most efficient for the treatment of morphea or scleroderma. The output radiated energy from the lamp in the 335-430 nm region is ≧20,000 μW/cm2. In a preferred embodiment of the invention the phosphor is SrB4O7:Eu, which has a spectral response with a peak between 366-368 nm with a bandwidth of about 18 nm.
Abstract translation:一种光治疗无电极灯(10),包括含有包含汞的电弧产生和维持介质的闭环封套(12)。 在封套(12)的内表面上设置荧光体涂层(14)。 磷光体涂层能够响应于来自254nm辐射的激发产生第一辐射,并且提供第一辐射,其具有335-430nm的区域中的能量输出。 该波长区域对于治疗痴呆或硬皮病最有效。 来自335-430nm区域中的灯的输出辐射能为> =20,000μW/ cm 2。 在本发明的一个优选实施方案中,磷光体是SrB 4 O 7:Eu,其具有在366-368nm之间的峰值的光谱响应,带宽约为18 nm。
Abstract:
Cross-coupled first and second helical inductors formed in an IC. The cross-coupled first and second helical inductors comprise a first helical conductor having a first portion and a second portion, and a second helical conductor having a first portion and a second portion. The second helical conductor is in close proximity to the first helical conductor. The first helical inductor is formed by the first portion of the first helical conductor and the second portion of the second helical conductor. The second helical inductor is formed by the second portion of the first helical conductor and the first portion of the second helical conductor.