Abstract: In a plasma display device, a period for connecting display electrode pairs to the base potential is disposed between a sustain pulse for generating the final sustain discharge and the previous sustain pulse based on a lighting ratio of the discharge cells in the corresponding subfield, and a voltage for reducing an interelectrode potential difference of the display electrode pairs is applied to the display electrode pairs in a predetermined time period corresponding to the lighting ratio of the discharge cells in the corresponding subfield after applying the sustain pulse for generating the final sustain discharge to the scan electrodes.

Abstract: The present invention provides a method of driving a plasma display panel that displays an image with high brightness, high contrast, and high display quality by stabilizing selective initializing operation. To realize it, a plurality of subfields each having a setup period, an address period, and a sustain period are provided in one field period. Retention time for retaining voltages to be applied to a scan electrode and a sustain electrode is provided between time when voltage for weakening the final sustain discharge in the sustain period is applied to the sustain electrode and time when a ramp waveform voltage which decreases is applied to the scan electrode in the setup period in the following subfield. The retention time is controlled based on average brightness of image signals or ambient temperature.

Abstract: One field period includes a plurality of subfields each having an initialization period in which a gradually descending sloping waveform voltage is applied to a scan electrode, a writing period in which a negative scan pulse voltage is applied to the scan electrode, and a sustain period. A sloping waveform voltage is generated by switching a minimum voltage in the sloping waveform voltage between a first voltage and a second voltage that has a lower voltage value than that of the first voltage. The ratio in one field period of a subfield in which an initialization is carried out by the sloping waveform voltage whose minimum voltage is the second voltage is increased when a temperature of the plasma display panel is determined to be low as compared with when the temperature is determined to be not low.

Abstract: A plurality of capacitor cells (10) are layered to form a cell group. On the top of each capacitor cell (10), a pair of electrode plates (10b) is formed to protrude upward. The adjacent electrode plates (10b) are connected to each other. A connection piece (20) protruding upward is attached to each of the electrode plates (10b). The connection piece (20) is connected to a circuit substrate (30). Thus, it is possible to effectively make a connection between the cell group of the capacitor cells (10) and the circuit substrate (30).

Abstract: In an evaluation apparatus of a hub unit, a signal processing unit outputs frequency analysis signals which indicate such a result obtained by that an output signal of an acceleration sensor fixed on a hub unit by a magnet is processed via an A/D converting unit and an envelope detecting unit, and thereafter, the processed sensor signal is analyzed for a frequency analysis by an FFT unit. Then, an evaluation output unit evaluates damage conditions of the hub unit based upon signal strengths of specific frequencies, and overall values, which are acquired from the frequency analysis signals, and then, outputs the evaluated damage condition to a display unit.

Abstract: A method of designing a semiconductor integrated circuit based on the TPI technique, comprising: (A) selecting a target node from a plurality of nodes included in a design circuit; (B) inserting a test point at the target node; (C) designating a delay time with respect to a test point path that is a path connected to the test point; and (D) laying out the design circuit such that a delay time of the test point path becomes the designated delay time. The (A) selecting includes: (A1) calculating delay times of fan-in paths and fan-out paths with respect to each of the plurality of nodes; and (A2) selecting the target node from the plurality of nodes based on the calculated delay times.

Abstract: A test circuit including a TAP controller specified in IEEE (Institute of Electrical and Electronics Engineers) 1149 and a test access port includes a first controller including a selecting circuit and a first TAP controller, the selecting circuit generating an internal TMS signal in accordance with TMS signal and selecting an output destination of the internal TMS signal in accordance with a selection signal, and the first TAP controller changing internal state based on the internal TMS signal, testing corresponding test target block in accordance with instruction code for test, and generating the selection signal in accordance with instruction code for selection, and a second controller including a second TAP controller changing internal state based on the internal TMS signal and testing corresponding test target block in accordance with the instruction code for test.

Abstract: Apparatus and methods for phase current detection used for driving a motor by supplying outputs from a pulse width modulation (PWM) converter to the motor. One method presented provides detecting a DC link current and a vector pattern, determining whether a voltage vector lengths exceeds a predetermined value, and adjusting the voltage vector by adding a positive or reversed voltage based upon the above determination and an integrated error value.

Abstract: Apparatus and methods for phase current detection used for driving a motor by supplying outputs from a pulse width modulation (PWM) converter to the motor. One method presented provides detecting a DC link current and a vector pattern, determining whether a voltage vector lengths exceeds a predetermined value, and adjusting the voltage vector by adding a positive or reversed voltage based upon the above determination and an integrated error value.

Abstract: An instantaneous current and instantaneous voltage of a three-phase coil of a brushless DC motor are detected, and the internal condition of a compressor is predicted from these detection values. The prediction about the internal condition of the compressor is made in such a way that motor driving torque which is a parameter of a motor model is identified and poor lubrication, liquid compression or the like is predicted from this identified motor driving torque. This enables it to make, in real time, a failure forecast, failure diagnosis etc. on the compressor.

Abstract: A method of designing a semiconductor integrated circuit is based on a TPI (Test Point Insertion) technique. The design method includes: inserting a test point into a target node in a designed circuit and designating delay time for a test point path connected to the test point. Thereafter, a layout of a designed circuit is made so that delay time of the test point path becomes the above described designated delay time.

Abstract: To reduce a leakage current when a motor for driving a compressor is energized, with the compressor unoperated. Setting the carrier frequency of an inverter at a value lower than that used during normal operation to cause phase interruption electrification of the motor.

Abstract: An individual identifying/attribute authenticating system includes a portable terminal possessed by a buyer of a good or service and an authenticating terminal set at a seller of the good or service. The portable terminal includes at least a component that generates an electronic signature by using a signature key and a component that transmits an electronic certificate and the electronic signature to the authenticating terminal. The authenticating terminal includes at least a component that judges whether or not the electronic signature is legitimate, a component that acquires an attribute information listed in the electronic certificate, in a case in which the electronic signature is legitimate, and a component that judges whether or not the attribute information satisfies a sales restricting condition of the good or service.

Abstract: The one-way clutch includes an inner ring, an outer ring, a plurality of sprags arranged between these inner and outer rings, and cages which hold these sprags at a predetermined interval in a circumferential direction. A chrome content in steel which is material for the sprags is 1.2 weight % or less.

Abstract: A partially cross-linked polymer composition obtainable by dynamically heat-treating: 95 to 50% by weight of a resin (A) comprising a defined ethylene copolymer, and 5 to 50% by weight of a resin (B) comprising a two or more-component propylene copolymer containing 0.1 to 20% by mol of units derived from ?-olefins other than propylene, or a blend of the two or more-component propylene copolymer and a propylene homopolymer which can be in the presence of defined amount of an organic peroxide (C) based on 100 parts by weight of the total amount of the resins (A) and (B). A process for producing the polymer compositions is also provided.

Abstract: One field period is structured of a plurality of subfields (SF), each including an initializing period, writing period, and sustaining period. Performed in the initializing period of each SF is all-cell initializing operation for generating initializing discharge in all the discharge cells to be used for image display, or selective initializing operation for generating initializing discharge in the discharge cells having generated sustaining discharge in the preceding SF. The period allocated to the writing discharge in a SF for the all-cell initializing operation is set shorter than the period allocated to the writing discharge in a SF for the selective initializing operation. This structure provides a plasma display panel driving method and a plasma display device capable of inhibiting increases in black picture level and displaying images at excellent quality.

Abstract: A partially cross-linked polymer composition obtainable by dynamically heat-treating: 95 to 50% by weight of a resin (A) comprising an ethylene copolymer containing 5 to 48% by weight of units derived from at least one monomer selected from vinyl acetate, (meth)acrylic acid, (meth)acrylate ester, glycidyl (meth)acrylate and carbon monoxide, and 5 to 50% by weight of a resin (B) having a melt viscosity (JAI 7-1991) at 180° C. of over 10,000 mPa·Es and comprising a two or more-component propylene copolymer containing 0.1 to 20% by mol of units derived from ?-olefins other than propylene, or a blend of the two or more-component propylene copolymer and a propylene homopolymer in the presence of an organic peroxide (C) in an amount of from 0.001 to 4 parts by weight based on 100 parts by weight of the total amount of the resins (A) and (B). A process for producing the polymer compositions is also provided.

Abstract: Losses are reduced in a current supply circuit including an inverter having a switching element. The dynamic losses in an IGBT element including a free wheeling diode are proportional to the product of turn-on losses and a switching frequency, and the static losses are proportional to the product of a current flowing through the IGBT element and a saturation voltage across a collector and an emitter of the IGBT element. When the breakdown voltage of the IGBT element is increased twice, the saturation voltage across a collector and an emitter does not reach twice as much. Therefore, the static losses can be reduced by increasing a voltage twice and reducing a current by half that are supplied to a load to attain the same power to supplied to the load, with the same dynamic losses.

Abstract: Apparatus and methods for phase current detection used for driving a motor by supplying outputs from a pulse width modulation (PWM) converter to the motor. One method presented provides detecting a DC link current and a vector pattern, determining whether a voltage vector lengths exceeds a predetermined value, and adjusting the voltage vector by adding a positive or reversed voltage based upon the above determination and an integrated error value.

Abstract: Synchronous motor controlling apparatus and method controls power applied to minimize or eliminate speed variations of a synchronous motor due to variations in load imposed the motor. The rotational position of a rotor of the synchronous motor based on the input terminal voltages and currents to the synchronous motor, and the power applied to the motor is adjusted accordingly. Higher harmonics of the input voltages and currents may also be used to detect the position of the rotor. In addition, the apparatus and method also accounts for the varying speed command inputs.