77results about How to "Reduction in size and cost" patented technology

An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In an exemplary embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.

An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a memory; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, determines and stores in the memory a value of a second parameter and generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, when a current value of the second parameter is substantially equal to the stored value, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.

An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a first plurality of segments of LEDs; a plurality of switches coupled to the plurality of segments of LEDs to switch a selected segment into or out of a series LED current path in response to a control signal; a current sensor; and a controller which, in response to a first parameter and during a first part of an AC voltage interval, generates a first control signal to switch a corresponding segment of LEDs into the series LED current path; and during a second part of the AC voltage interval, generates a second control signal to switch a corresponding segment of LEDs out of the first series LED current path.

A method of manufacturing a vehicle-mounted camera includes previously assuming a plurality of inclination angles as the inclination angles of the glass surface; previously assuming a plurality of positioning angles less than the number of the plurality of inclination angles; determining an inclination angle of the glass surface of the vehicle body on which the vehicle-mounted camera is to be mounted; selecting at least one positioning angle from the assumed plurality of positioning angles; preparing a positioner having the selected positioning angle; and fixing the camera main structure assembly and the selected positioner to the cover enclosure.

Exemplary embodiments of the invention provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting producing a first wavelength shift, and a second electrical biasing for the solid state lighting producing a second, opposing wavelength shift. Exemplary embodiments provide for receiving information designating a selected intensity level or a selected temperature; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.

Disclosed herein is a display apparatus including: a display pixel section including pixels each composed of an arrangement of red, green, and blue subpixels and an additional subpixel of a specified color; and a signal processing section configured to extend signal levels of an input image signal, extract a signal component of the specified color from extended red, green, and blue signals, determine a signal level of the specified color, perform an extension process based on the signal level of the specified color, modulate the red, green, and blue signals subjected to the extension process in accordance with a specified modulation level so as to have different brightness from that of an original image, and modulate brightness of a light source. The input image signal used to determine the modulation level and the input image signal subjected to a modulation process and displayed are of different frames.

Disclosed a transmission apparatus in a CDMA mobile communication system. Transmission frames each have a plurality of time slots, and each of the time slots includes two data parts having the same length, a midamble intervening between the data parts, and a guard period for dividing the consecutive time slots. The transmission apparatus modulates the frames into a radio signal with a modulation signal and transmits the modulated radio signal using a plurality of antennas. A power amplifier amplifies the radio signal. A controller generates a switching control signal in a guard period of time slots of a frame associated with the radio signal amplified by the power amplifier. A switch switches the amplified radio signal from the power amplifier between a first and a second antenna in response to the switching control signal.

To realize reduction in the size and cost of a protection circuit module for a secondary battery. A protection circuit module 1 for a secondary battery has at least a wiring board 2 having multiple battery-side external terminals 4a and multiple load-side external terminals 20a, and semiconductor components 12 and 14 mounted on the wiring board 2. On the wiring board 2, the battery-side external terminals 4a are disposed on a surface 2a, and the load-side external terminals 20a are disposed on a surface 2b on the opposite side. The semiconductor components 12 and 14 have multiple external connection terminals 12a and 14a arranged on a single plane surface, and are mounted face-down in a bare-chip state on the surface 2a of the wiring board 2.

A motor controller is provided which can be reduced in the number of the wirings and power semiconductor devices required while maintaining the function equivalent to or higher than that of the motor controller adopting the existing winding changeover scheme, thereby realizing cost and size reduction and life increase. The motor is made in a structure having motor windings opened at both ends. The one end terminals of phase windings are respectively connected to the output terminals of a first inverter circuit while the other end terminals are respectively connected to the output terminals of a second inverter circuit. During power generation, any one of the inverter circuits is driven on all the phases by means of a same control pulse.

A drive circuit (20a,20b) for an injector arrangement having at least one piezeoelectric injector (12a,12b) is described. The drive circuit comprises: a first charge storage means (C2) for operative connection with the injector (12a,12b) during a discharging phase so as to discharge current to flow therethrough, thereby to initiate an injection event; a second charge storage means (C1) for operative connection with the injector (12a,12b) during a charging phase so as to cause a charging current to flow therethrough, thereby to terminate the injection event; a switch means (Q1,Q2) for controlling whether the first charge storage means (C2) is operably connected to the injector or whether the second charge storage means (C1) is operably connected to the injector; a first voltage supply rail at a first voltage level; a second voltage supply rail at a second voltage level higher than the first; a voltage supply means (22,36); and regeneration switch means (Q5,Q2, L1) operable at the end of the charging phase to transfer charge from the voltage supply means to at least the second charge storage means (C1) via an energy storage device (L1) prior to a subsequent discharging phase.

An interferometer comprises a delay element and a phase shift element. The delay element delays an optical DQPSK signal by one-symbol time. The phase shift element shifts the optical DQPSK signal by π / 8. A pair of photodiodes converts each of a pair of optical signals output from the interferometer into an electric signal. A photodetector circuit converts differential current obtained by a pair of the photodiodes into voltage and outputs as a detection signal. A first decision circuit outputs one-bit information based on the voltage of the detection signal. A second decision circuit outputs one-bit information based on a squared value of the voltage of the detection signal.

Disclosed are graphene shield enhanced photocathodes, such as high QE photocathodes. In certain embodiments, a monolayer graphene shield membrane ruggedizes a high quantum efficiency photoemission electron source by protecting a photosensitive film of the photocathode, extending operational lifetime and simplifying its integration in practical electron sources. In certain embodiments of the disclosed graphene shield enhanced photocathodes, the graphene serves as a transparent shield that does not inhibit photon or electron transmission but isolates the photosensitive film of the photocathode from reactive gas species, preventing contamination and yielding longer lifetime.

A semiconductor device includes 1) a conductive pipe including an inner surface forming an inner space shaping a path of an insulative cooling refrigerant liquid and an outer surface including a plane potion partially formed thereof, 2) a power semiconductor element fixed onto the plane portion of the conductive pipe through a bonding layer such as solder, 3) a first external connecting terminal including an inner lead part including a tip portion bonded onto the plane portion of the conductive pipe and an outer lead part continuous with the inner lead part, 4) a second external connecting terminal which is in the state of floating above the outer surface, and 5) a mold resin covering the whole surface of the power semiconductor element, the whole of the inner lead parts of the external connecting terminals, and the whole of the outer surface covering a central portion of the conductive pipe.

When a voltage applied to an output terminal exceeds a power source voltage to be supplied during an ordinary operation state, a reset signal turns into L level and the operation mode of a sensor goes into a trimming operation mode. The voltage entered into the output terminal is changed in a voltage range higher that the power source voltage to input trimming data with a data signal having L or H level. The entered trimming data is temporarily held by a latch and then written into a memory in response to a write voltage applied to a power source terminal in a write mode. Then, the trimming data held by the latch or the trimming data stored in the memory can be read out as a change in the sink current of the output terminal when a read mode is set.

A carrier phase-based relative positioning apparatus includes a plurality of antennas fixedly mounted on a moving body for receiving positioning signals from satellites, an inertial measurement unit (IMU) for measuring accelerations and angular velocities of the moving body, a reference attitude calculator for calculating attitude information about the attitude of the moving body from observables of the IMU at least before an integer ambiguity candidate is initially determined, an integer ambiguity estimator for estimating integer ambiguity candidates from the positioning signals received by the antennas, and an integer ambiguity validator for evaluating correctness of the integer ambiguity candidates estimated by the integer ambiguity estimator.

The present invention provides an RFID paper manufacturing apparatus and an inspection method of an RFID paper manufacturing apparatus with which the location of a fault in the apparatus causing a defect in an RFID tag can be specified easily. An RFID label manufacturing apparatus comprises: a reader / writer for performing at least one of reading the information stored in the RFID tag and writing information to the RFID tag; a plurality of antennas disposed in a plurality of predetermined positions on a path along which the RFID tag is conveyed, for transmitting and receiving information to / from the RFID tag; a switching circuit for switching the antenna that is connected to the reader / writer; and a CPU for detecting an error in at least one of the information writing and the information reading performed by the reader / writer via the antenna that is connected to the reader / writer by the switching operation of the switching circuit.

A first voltage-to-current converter converts a difference voltage between a command voltage and a reference voltage into a current. A second voltage-to-current converter converts a difference voltage between a positive output terminal and a negative output terminal of a PWM drive apparatus into a current. A low-pass filter is connected to a connection point between an output terminal of the first voltage-to-current converter and an output terminal of the second voltage-to-current converter. An amplifier amplifies a difference voltage between a voltage at the connection point and a reference voltage. A PWM modulator PWM-modulates an output voltage of the amplifier. A drive section drives a load in accordance with an output signal of the PWM modulator.

An inspecting apparatus and an inspecting method capable of detecting a state inside the cream solder are provided.An illumination device (5) irradiates infrared light at predetermined intensity to a board on which cream solder is applied. An image taking device (6) takes an image of the board to which the infrared light is irradiated. A main control portion (95) in a control device (9) is capable of detecting a sectional shape of the cream solder according to an intensity distribution of infrared light reflected on the board from image data of the image captured by the image taking device (6). Also, because reflected light from the cream solder surface can be eliminated by an elimination portion (95c), the sectional shape of the solder can be detected more exactly.

An electric turbo compressor is an air compressor to be used in a fuel cell system, and includes a housing comprised o a compression casing, a motor casing, and a canceller casing, and the housing houses therein an impeller, a rotary shaft, a thrust canceller (a load cancellation section), and a motor unit. The rotary shaft is supported by a thrust air bearing in its thrust direction, and is axially supported by a radial air bearing in its rotating direction. A thrust load is generated at the rotary shaft when the number of rotations of the impeller increases. The pressure of the compressed air acts to the pressure chamber from the compressed air lead-out section of the compression casing via the compressed air passage, and this pressure acts on the canceller flange of the canceller shaft so as to generate a load towards the rear of the rotary shaft. Therefore, the thrust load is cancelled out.

A drive circuit (20a,20b) for an injector arrangement having at least one piezoelectric injector (12a,12b) is described. The drive circuit comprises: a first charge storage means (C2) for operative connection with the injector (12a,12b) during a discharging phase so as to discharge current to flow therethrough, thereby to initiate an injection event; a second charge storage means (C1) for operative connection with the injector (12a,12b) during a charging phase so as to cause a charging current to flow therethrough, thereby to terminate the injection event; a switch means (Q1,Q2) for controlling whether the first charge storage means (C2) is operably connected to the injector or whether the second charge storage means (C1) is operably connected to the injector; a first voltage supply rail at a first voltage level; a second voltage supply rail at a second voltage level higher than the first; a voltage supply means (22,36); and regeneration switch means (Q5,Q2, L1) operable at the end of the charging phase to transfer charge from the voltage supply means to at least the second charge storage means (C1) via an energy storage device (L1) prior to a subsequent discharging phase.

In a switching power supply device in which an operation reference voltage of a control circuit has an electric potential identical to that of a connection point between a switching element and a coil that is an energy conversion circuit, an output voltage detection circuit includes: a rectification circuit which converts an output voltage into a voltage signal rectified relative to the operation reference voltage terminal of the control circuit; and a voltage-to-current converter which is connected between an input terminal of a current detection circuit and the rectification circuit, and which converts the rectified voltage signal into a current signal. The current detection circuit is a sampling type which detects a current by sampling the current signal applied to the input terminal of the current detection circuit.

Passive optical components may be used to tap the optical power, e.g., from fibers of a wavelength switch system. The passive optical components are realized by a standard photonics light-wave circuit (PLC) integrated to the fiber collimator array of the wavelength switch system. The PLC includes multiple waveguide paths that optically couple optical signals from one or more fiber ports to one or more corresponding free space optical component ports. Optical signals traveling through these waveguide paths are tapped by one or more optical taps and coupled to one or more corresponding tap ports. Each optical tap is located such that an optical signal is tapped after it is coupled into one of the waveguide paths.

To provide a vacuum pump capable of performing temperature control using one or more heating devices or cooling devices fewer than the number of temperature sensors arranged in the pump.One temperature sensor is arranged for each target in the pump, while only one set consisting of a heater 147 and a magnetic valve 163 is arranged. One set consisting of a heater and a magnetic valve is controlled based on output signals from a plurality of temperature sensors, based on the priorities set for the temperature sensors. As stated above, by setting priorities for the temperature sensors, the temperature of a target provided with a temperature sensor given a higher priority is settled within a control range by performing quick ON / OFF control, and then the temperature of a target provided with a temperature sensor given a lower priority is settled within the control range.

According to the present invention, when a secondary current on period T2on reaches a predetermined maximum secondary current on-period, an overload is detected and an output power is controlled to decrease. Further, a maximum secondary current on-period signal is set so as to correspond to a secondary current on-period when constant voltage control is performed on an output voltage.

Disclosed a transmission apparatus in a CDMA mobile communication system. Transmission frames each have a plurality of time slots, and each of the time slots includes two data parts having the same length, a midamble intervening between the data parts, and a guard period for dividing the consecutive time slots. The transmission apparatus modulates the frames into a radio signal with a modulation signal and transmits the modulated radio signal using a plurality of antennas. A power amplifier amplifies the radio signal. A controller generates a switching control signal in a guard period of time slots of a frame associated with the radio signal amplified by the power amplifier. A switch switches the amplified radio signal from the power amplifier between a first and a second antenna in response to the switching control signal.

An antenna device includes a planar coil, a planar conductor, a first power feed terminal, and a second power feed terminal. The planar conductor includes a cutout opposed to the planar coil that overlaps with a coil aperture. The planar coil includes a first conductor pattern portion and a second conductor pattern portion. The first power feed terminal is connected to a first end of the first conductor pattern portion and the second power feed terminal is connected to a first end of the second conductor pattern portion on a side adjacent to or in a vicinity of the first end of the first conductor pattern portion. Second ends of the first conductor pattern portion and the second conductor pattern portion are connected to the planar conductor.