Abstract: Disclosed is a small-sized magnetoresistance element array having a plurality of arranged magnetoresistance elements and provided with excellent operating efficiency which facilitates connection of each magnetoresistance element by virtue of comb terminals and U-shaped terminals provided on the inner walls of the stem. In the magnetoresistance element array, the magnet detectors are positioned at the right three-dimensional position, thereby preventing crosstalk or deviation in the reading timing at the time of reading a magnetic code. Guides are provided on the top walls of the stem so as to regulate the position at which the magnetic detector is secured to the top portion of the magnet.The magnetoresistance element array is used for a magnetic sensor for reading information recorded as a magnetic code from a magnetic code recorded medium such as a magnetic card.

Abstract: In a frost and dew sensor composed of two thermosensitive resistors, a power source and an arithmetic circuit, frost or dew is detected from the change of a differential temperature between the two thermosensitive resistors as two different currents from the power source are supplied to the respective thermosensitive resistors. In an alternative form, the sensor has a single thermosensitive resistor, which is energized as two different currents are alternately supplied from the power source so that frost or dew is detected by comparison of the time-lags between the two outputs from the thermosensitive resistor.

Abstract: An apparatus for aligning/supplying electronic component chips comprises an aligning passage for guiding and moving a plurality of electronic component chips in a state aligned with each other along a prescribed direction, and a chamber which communicates with the aligning passage for storing a plurality of electronic component chips. The chamber at least comprises a small chamber which is formed in the vicinity of an inlet of the aligning passage and a large chamber which communicates with the small chamber. A gradient plane or a rounded face is formed in at least a part of the wall surfaces defining the small chamber when viewed in cross-section according to a plane which is parallel to a direction across the aligning passage, thereby preventing inadvertent retention of electronic component chips between the wall surface within the small chamber and facilitating their movement from the small chamber to the aligning passage.

Abstract: A pyroelectric sensor senses the infrared rays radiated from the human body and outputs the detected infrared rays as an electric signal. It detects the trespass of somebody on a room and is used for the prevention of crimes and the like. The pyroelectric sensor includes a substrate, an element-pair disposed on the surface of the substrate and an amplification circuit for amplifying the current signals output from the element-pair. The substrate is composed of a material having a thermal conductivity as low as not more than 0.04 cal/cm sec.degree. C. so as to prevent the heat from being released through the substrate. A hole is formed in the substrate. The amplification circuit amplifies the current signals of the element-pair, thereby dispensing with the impedance transformation which is inevitable in the prior art. Thus, the sensitivity of detection is improved and the manufacture of the sensor is facilitated.

Abstract: A method of mounting electrodes on a sensor chip and coating the sensor chip for insulation. Small through holes corresponding to the connecting terminals of a sensor chip for connecting the sensor chip to external elements and electrode patterns serving as lead frames are continuously provided for respective sensors in the longitudinal direction on a sheet-like tape carrier composed of a protective insulation material. The sensor chips are mounted on the tape carrier and the terminals of the sensor chips are connected to the corresponding electrode patterns through the corresponding small through holes, thereby completing the assembly packaging a sensor of a plurality of sensor elements. The thus-obtained sensor elements arranged in alignment and in parallel on the tape carrier are separated from each other and mounted on respective sensor bases and packaged.

Abstract: A filter employing Triplate type microstripline as the base element comprises first and second dielectric substrates which are superposed with each other so as to hold a resin sheet therebetween, and are contained in a metal case. The respective dielectric substrates are provided on outer major surfaces with ground electrodes to be electrically connected with the metal case. Resonance electrodes are provided on inner major surfaces of the respective dielectric substrates to be electrically connected with relating ground electrodes through end surfaces of the dielectric substrates. The resin sheet holds metal pins passing through the same along the direction of thickness thereof, so that the respective resonance electrodes of the first and second dielectric substrates are electrically connected with each other by the metal pins.

Abstract: A modem system includes an RS232C interface; a modulator/demodulator; an input-output device having a parallel interface connected with a data terminal unit having no communication function or having a parallel specification; a parallel-to-serial converter for performing the mutual conversion between parallel data and serial data; a memory for temporally storing the transmitted or recieved data; and a controller for controlling the transmission and reception of data. The modem system can perform the convertion between RS232C specification data and centronix specification data such that a parallel specification printer or plotter having no communication function can be used as an output device for data transmitted to the modem system through the telephone network.

Abstract: A temperature sensor includes a capacitor having electrodes between which a dielectric body having its dielectric constant variable depending on the variations of ambient temperature is interposed, and a CR oscillating circuit utilizing the capacitor. The dielectric body is made of a ceramic dielectric material which has a working temperature range in the normal dielectric phase with the dielectric constant thereof having a temperature coefficient ranged between -1,000 ppm/.degree.C. and -10,000 ppm/.degree.C. The ceramic dielectric body is also used as a substrate on which the CR oscillating circuit is formed.

Abstract: An RF converter includes a video modulator and a sound modulator. A modulated video signal from the video modulator and a modulated sound signal from the video modulator are mixed and conducted to a surface acoustic wave (SAW) filter constituted as a band pass filter, an RF television signal being the output of this surface acoustic wave filter. A high frequency side of the amplitude characteristic in the pass band of the surface acoustic wave filter is enhanced in comparison with a low frequency side thereof.

Abstract: A ceramic electronic component which comprises a generally elongated ceramic body and a metal cap mounted on each end of the ceramic body. Each end of the ceramic body has a peripheral edge rounded to have a predetermined first radius of rounding, and the metal cap has an interior corner rounded to have a predetermined second radius of rounding. The first radius of rounding is greater than the second radius of rounding.

Abstract: In a fly-back transformer, the tertiary winding for obtaining the secondary B power source is wound in a position where the coupling with the primary winding is weak and where it interlinks the leakage flux of the secondary winding with the primary winding, and the output of the tertiary winding is rectified during the scanning period of a horizontal deflection circuit of a television receiver. Accordingly, only the wave crest value of the ringing is made smaller, regardless of the shot pulse to be obtained within the secondary winding.