Abstract: The present invention relates to an AC drive surface discharge type plasma display panel having an isosceles delta array type pixel. The background art has a problem of being apt to cause a wrong writing discharge and having a narrow writing voltage margin. Then, in the present invention, transparent electrodes for X electrode (T3, T4) in first and second pair subpixel regions (PSPR1, PSPR2) of an isosceles delta array type pixel (P1) are provided at portions farther away from a first write electrode (Wj(B)) in an isolated subpixel region (ISPR). Specifically, a central axis of the third transparent electrode (T3) along a vertical direction (v) is positioned closer to an extending portion (WAE) of a second write electrode (Wj(A)) from a vertical direction central axis of the first pair subpixel region (PSPR1).

Abstract: A ballast for a vehicle metal halide lamp is simplified using a DC-AC one-step-boost high frequency ballast system. To satisfy requirements specific to a metal halide lamp, a discharge developing capacitor is installed on a primary side of a transformer in parallel with a DC power supply, ensuring discharge development after a breakdown. To reduce the size and increase the operating voltage of the transformer, a booster circuit and voltage-doubler circuit are installed on the primary side and secondary side of the transformer, respectively. To reduce the size of the transformer and achieve a stable discharge, the ballast frequency is swept within a range between the specified minimum frequency and maximum frequency so that the center frequency is from 80 kHz to 120 kHz, and the same frequency is unsustained for more than 10 msec.

Abstract: A compact, low cost high intensity discharge lamp ballast apparatus which can carry out normal ballasting without extinction at discharge start includes a DC-AC inverting booster circuit, a first resonance circuit, and a second resonance circuit. The DC-AC inverting booster circuit includes a DC-AC converter transformer for converting a DC voltage fed from a DC power supply to an AC voltage in response to switching on and off of FETs, boosting the voltage. The first resonance circuit includes a leakage inductance connected in series with the secondary winding of the DC-AC converter transformer, and a first resonant capacitor connected in parallel with the secondary winding. The second resonance circuit includes a metal halide lamp, an ignitor transformer for producing a voltage to start lighting of the metal halide lamp, and a second resonant capacitor.

Abstract: A vehicle air conditioning system is capable of learning preferences for a plurality of passengers, altering control characteristics of air conditioning means based on the results of learning, and automatically controlling the system. The system is capable of adjusting a temperature separately and independently for the left and right sides of a passenger compartment, and stores a temperature setting map of preferences of respective passengers for the Dr side and Pa side. Temperature set points are used for calculating blowing temperatures and determining opening degrees of air mix dampers. If a set point temperature is changed by a manual setting, the temperature-setting map is altered and restored by learning such change, and thus the temperature-setting map can be updated to reflect preferences of each passenger for each of the Dr side and Pa side.

Abstract: A mobile station that selects one of a plurality of base stations according to electric field strengths of signals transmitted on control channels corresponding to the plurality of base stations, and establishes first a link and then a call connection with the selected base station on a traffic channel that is assigned via a control channel corresponding to the selected base station, the mobile station including: a measuring unit for measuring an electric field strength of a signal on the traffic channel when a link operation is performed to establish the link for the traffic channel; and a judging unit for judging whether the link operation should be continued according to the measured electric field strength.

Abstract: A discharge lamp ballast circuit is provided which can prolong the life of a discharge lamp, and reduce the size and cost of the ballast circuit. It generates from an AC voltage boosted by a DC-AC inverter circuit a DC voltage higher than the breakdown voltage of an HID lamp, or a superimposed voltage in which a pulsating component is superimposed on the DC voltage, and starts the discharge by applying the DC voltage or the superimposed voltage to the HID lamp. It can make the life of the HID lamp longer than that of the case where a high voltage short pulse is applied to the HID lamp.

Abstract: A compact, low cost high intensity discharge lamp ballast apparatus which can carry out normal ballasting without extinction at discharge start includes a DC-AC inverting booster circuit, a first resonance circuit, and a second resonance circuit. The DC-AC inverting booster circuit includes a DC-AC converter transformer for converting a DC voltage fed from a DC power supply to an AC voltage in response to switching on and off of FETs, boosting the voltage. The first resonance circuit includes a leakage inductance connected in series with the secondary winding of the DC-AC converter transformer, and a first resonant capacitor connected in parallel with the secondary winding. The second resonance circuit includes a metal halide lamp, an ignitor transformer for producing a voltage to start lighting of the metal halide lamp, and a second resonant capacitor.

Abstract: A ballast for a vehicle metal halide lamp is simplified using a DC-AC one-step-boost high frequency ballast system. To satisfy requirements specific to a metal halide lamp, a discharge developing capacitor is installed on a primary side of a transformer in parallel with a DC power supply, ensuring discharge development after a breakdown. To reduce the size and increase the operating voltage of the transformer, a booster circuit and voltage-doubler circuit are installed on the primary side and secondary side of the transformer, respectively. To reduce the size of the transformer and achieve a stable discharge, the ballast frequency is swept within a range between the specified minimum frequency and maximum frequency so that the center frequency is from 80 kHz to 120 kHz, and the same frequency is unsustained for more than 10 msec.

Abstract: A display device includes a PDP having sub-pixels (C) arranged in a delta configuration and driven by a sub-field gradation method. In an odd-numbered field, three sub-pixels (C22, C31, C33) constitute one pixel (P) (in a first display mode). In an even-numbered field, three sub-pixels (C31, C33, C42) constitute one pixel (P) (in a second display mode). The pixel (P) including the sub-pixel (C31) for emitting red (R) and the sub-pixel (C33) for emitting blue (B) selects the sub-pixels (C22, C42) alternately as the sub-pixel (C) for emitting green (G) on a field-by-field basis. This displaces the position of the pixel (P) field by field.

Abstract: A PDP with improved luminous efficiency is provided which prevents erroneous discharge and emission in adjacent cell spaces (8) and which effectively takes out light produced in the cell spaces (8), and a plasma display device having the PDP is also provided. The space between a front substrate (not shown) and a back substrate (1) is sectioned into a plurality of independent cell spaces (8) by grid-like barrier ribs (2). The cell spaces (8) include discharge cells (9) and non-discharge cells (10). The discharge cells (9) and the non-discharge cells (10) are alternately arranged in horizontal and vertical directions (in alternate checkers). A phosphor (3) is applied in the discharge cells (9) and the phosphor (3) is not applied in the non-discharge cells (10).

Abstract: A mobile station that selects one of a plurality of base stations according to electric field strengths of signals transmitted on control channels corresponding to the plurality of base stations, and establishes first a link and then a call connection with the selected base station on a traffic channel that is assigned via a control channel corresponding to the selected base station, the mobile station including: a measuring unit for measuring an electric field strength of a signal on the traffic channel when a link operation is performed to establish the link for the traffic channel; and a judging unit for judging whether the link operation should be continued according to the measured electric field strength.

Abstract: The present invention relates to an AC drive surface discharge type plasma display panel having an isosceles delta array type pixel. The background art has a problem of being apt to cause a wrong writing discharge and having a narrow writing voltage margin. Then, in the present invention, transparent electrodes for X electrode (T3, T4) in first and second pair subpixel regions (PSPR1, PSPR2) of an isosceles delta array type pixel (P1) are provided at portions farther away from a first write electrode (Wj(B)) in an isolated subpixel region (ISPR). Specifically, a central axis of the third transparent electrode (T3) along a vertical direction (v) is positioned closer to an extending portion (WAE) of a second write electrode (Wj(A)) from a vertical direction central axis of the first pair subpixel region (PSPR1).

Abstract: A vehicle air conditioner has an actuator for driving an air mixing door and various mode switching doors. An automatic range and a manual range are set in different operating angle ranges of the actuator. In the automatic range, an air outlet mode is automatically switched in accordance with an opening degree of the air mixing door. On the other hand, in the manual range, a multi-mode or a defroster mode is manually set, regardless of the opening degree of the air mixing door. In the manual range, air is simultaneously blown from all openings such as a face opening, a foot opening and a defroster opening in the multi-mode, and air is blown from the defroster opening in the defroster mode.

Abstract: A vehicle air conditioning system is capable of learning preferences for a plurality of passengers, altering control characteristics of air conditioning means based on the results of learning, and automatically controlling the system. The system is capable of adjusting a temperature separately and independently for the left and right sides of a passenger compartment, and stores a temperature setting map of preferences of respective passengers for the Dr side and Pa side. Temperature set points are used for calculating blowing temperatures and determining opening degrees of air mix dampers. If a set point temperature is changed by a manual setting, the temperature-setting map is altered and restored by learning such change, and thus the temperature-setting map can be updated to reflect preferences of each passenger for each of the Dr side and Pa side.

Abstract: A mobile station that selects one of a plurality of base stations according to electric field strengths of signals transmitted on control channels corresponding to the plurality of base stations, and establishes first a link and then a call connection with the selected base station on a traffic channel that is assigned via a control channel corresponding to the selected base station, the mobile station including: a measuring unit for measuring an electric field strength of a signal on the traffic channel when a link operation is performed to establish the link for the traffic channel; and a judging unit for judging whether the link operation should be continued according to the measured electric field strength.

Abstract: Components of an arrangement interval in first and second directions (v, h) between first to third subpixels (C1, C2, C3) in a pixel (PX) satisfy the following expressions: pv1=pv2=pv/2; pv3=0; and ph1=ph2<ph/3. Components of the arrangement interval in the first and second directions (v, h) between two pixels (PX) adjacent to each other in the second direction (h) satisfy the following expressions: pv4=pv/2 (=p/2); pv5=0; and ph4>ph/3. Pixels (PX) adjacent to each other in the first direction (v) have the same arrangement of the first to third subpixels (C1, C2, C3).

Abstract: An air conditioning system for a vehicle exhibits a room air conditioner unit for air conditioning a passenger compartment, a seat air conditioner unit for adjusting a temperature of a seat, a temperature sensor for detecting a temperature at a front location of a passenger seated on the seat and the temperature of the seat, and a control unit for controlling operation of the room air conditioner unit and the seat air conditioner unit so that a difference between the temperature at the front of the passenger and the temperature of the seat falls within a certain value range. As a result, a difference in heat sensation between the front and the back of the passenger is reduced, and hence the comfortableness of the passenger compartment can be improved.

Abstract: There are provided an air mixing door, a plurality of outlets for blowing air into respective portions in a vehicle compartment, outlet mode doors for switching a outlet mode by closing and opening the plurality of outlets, and one motor actuator for driving the air mixing door and the outlet mode doors. The outlet mode doors and the air-mixing door are alternately driven through a change of an operation angle of the motor actuator.

Abstract: In a control unit of a vehicle air conditioner, a necessary time period T1, between the present time and a time at which the vehicle is stopped next, and a vehicle stopping time period T2, between the time at which the vehicle is stopped next and a time at which the vehicle is re-started, are estimated based on vehicle-travel state information and traffic signal information in a vehicle traveling. Further, a necessary cold release amount Q required for cooling in the vehicle stopping time period T2 is calculated based on the vehicle stopping time period T2, and a cold storage operation is controlled so that the necessary cold release amount Q is stored for the necessary time period T1.

Abstract: Components of an arrangement interval in first and second directions (v, h) between first to third subpixels (C1, C2, C3) in a pixel (PX) satisfy the following expressions: pv1=pv2=pv/2; pv3=0; and ph1=ph2<ph/3. Components of the arrangement interval in the first and second directions (v, h) between two pixels (PX) adjacent to each other in the second direction (h) satisfy the following expressions: pv4=pv/2 (=p/2); pv5=0; and ph4>ph/3. Pixels (PX) adjacent to each other in the first direction (v) have the same arrangement of the first to third subpixels (C1, C2, C3).