摘要:
A discharge lamp lighting apparatus includes: a DC power supply to supply power to a HID lamp; a transformer to transmit a voltage of DC power supply to the HID lamp; a switch connected between the DC power supply and a primary winding of the transformer; switches connected to a primary side of the transformer; an inductance connected in series to a secondary winding of the transformer; a series resonance circuit connected to a secondary side of the transformer and including an inductance and a capacitor; and a parallel resonance circuit connected to the secondary side of the transformer and including an inductance and a capacitor. The switches are opened or closed to intermittently supply power from the DC power source to the transformer to always supply a current to the transformer.
摘要:
A pressure sensor comprising a hollow main body (11) defining a bore (14) extending therethrough and having a detection end and an output end. A pressure sensing assembly is disposed within said bore (14) to divide it into a detection cavity (17) and an output cavity (18) through which output signal lines from said pressure sensing assembly extend. A flexible diaphragm (19) is attached to the detection end of the bore to define a sealed detection cavity (17) in which a pressure transmitting liquid is filled. The pressure sensing assembly comprises support plate (24) welded to said main body (11) and supporting a pressure sensing element (26) within said detection cavity (17) through a mounting bed (4). The signal lines sealingly extend through said support plate (24) from said detection cavity (17) to said output cavity (18).
摘要:
An Internet information displaying apparatus, comprises an SIF (7) for outputting a video signal by extracting from the television signal received by a tuner (1); a speaker (12) for generating the sound signal as audible sound; modem (16) for transmitting and receiving the digital data through a telephone line by converting the digital data into a carrier signal by sound in transmitting, and by demodulating the carrier signal by sound into digital data at receiving; carrier amplifier (17) for outputting the carrier signal by the transmitting/receiving sound of the modem (16); and mixing circuit (11) for giving sound signal generated in the telephone line to the speaker (12) and generating as audible sound. Even when a television signal is being received and the sound is outputted from the speaker, the connection condition by telephone line is easily recognizable.
摘要:
A semiconductor acceleration sensor of a single integral type has a semiconductor substrate, a first nitride layer, a first poly-silicon layer, a second nitride layer, a second poly-silicon layer, a third nitride layer and a third poly-silicon layer which are fabricated in order. A movable section is formed in a part of the second poly-silicon layer placed in a cavity enclosed and sealed by the first nitride layer, the first poly-silicon layer, the second nitride layer, the second poly-silicon layer, the third nitride layer and the third poly-silicon layer. A fabrication method of the semiconductor acceleration sensor of a single integral type is also disclosed.
摘要:
There is provided at least one pressure detector for detecting a change in pressure of an insulating medium, a vibration detector for detecting vibration of an oil-filled electric equipment, and a determination processor for determining, based on information detected by the pressure detector and the vibration detector, whether an internal short circuit has occurred in the oil-filled electrical equipment.
摘要:
An Internet information displaying apparatus comprising character signal generating means for generating a character signal and displaying it on the screen of the displaying means, and character signal generation controlling means for detecting the state of transmission and reception of digital data of the digital data transmitting and receiving means, and controlling the character signal generating means so as to generate a character signal to indicate the transmission or reception state. The state of transmission or reception of the digital data of the digital data transmitting and receiving means, in other words, the state of connection to the provider is displayed on the screen.
摘要:
An Internet information displaying apparatus, comprising: a video intermediate frequency detector (11) for extracting a first picture signal from a video signal and outputting it; a gate array (36) for converting the digital data taken in from the Internet into a second picture signal, and for compressing the second picture signal in the horizontal direction of the screen of a CRT (17); a TV picture horizontal compression unit (18) for compressing the first picture signal in the horizontal direction of the screen of the CRT (17); the gate array (36) for compressing the second picture signal in the horizontal direction of the screen of the CRT (17); a picture right and left composing unit (19) for composing the picture signals compressed by the unit (18) and the gate array (36), respectively, in a row; and switching units (14, 23) for switching the picture signal to be displayed on the screen of the CRT (17) into any of the first picture signal, the second picture signal, and the picture signal composed by the picture right and left composing unit (19). Television program and the Internet screen are displayed simultaneously.
摘要:
An Internet information displaying apparatus comprising character signal generating means for generating a character signal and displaying it on the screen of the displaying means, and character signal generation controlling means for detecting the state of transmission and reception of digital data of the digital data transmitting and receiving means, and controlling the character signal generating means so as to generate a character signal to indicate the transmission or reception state. The state of transmission or reception of the digital data of the digital data transmitting and receiving means, in other words, the state of connection to the provider is displayed on the screen.
摘要:
A pressure sensor includes an electrically insulating material covering wires for transmitting an electrical signal generated by a semiconductor pressure-sensing unit, the joints between the wires and the pressure-sensing unit, and the joints between the wires and leads connected to the wires for leading the electrical signal to the outside of the body casing of the sensor. Thus, detection of pressure is possible even in an intense-vibration environment, and it is also possible to reduce influences by changes in temperature.