Abstract: This multi channel temperature controller includes several temperature sensors, an electronic multiplexer which receives output signals from these temperature sensors and which sequentially supplies these signals to its output according to the switching action of a selection signal, and an amplifier which receives the output of the electronic multiplexer. Thereby, noise such as due to thermal electro motive force generated in the contacts of prior art sets of reed relays for switching over such temperature sensor output signals can be eliminated. Further, optionally, there may be provided several input circuits, one interposed between each of these temperature sensors and the electronic multiplexer, and each including a capacitor which has electrostatic capacitance substantially greater than the electrostatic capacitance existing between its input circuit and the corresponding temperature sensor. Thereby, common mode voltage noises are eliminated or minimized.

Abstract: In a card authorization terminal for effecting card authorization processing for a large transaction amount of money with communications with a host computer but card pseudoauthorization processing for a small transaction amount of money without communications with the host computer, transaction data used for pseudoauthorization processing are once stored in a memory unit and then transmitted to the host computer during communications with the host computer for card authorization processing. Further, in the case of transactions of small amounts of money, only some transactions extracted at random are processed for card authorization.

Abstract: In an electronic blood pressure meter, pressurization requirement of the cuff is minimized by predicting a systolic blood pressure level from blood vessel information which may be obtained with an initial cuff pressure which is lower than the systolic blood pressure. The prediction of the systolic blood pressure may be based on a diastolic blood pressure, a maximum pulse wave amplitude value, on other pulse wave amplitude value, a cuff pressure value corresponding to the other pulse wave amplitude value and an empirically obtained parameter. Thus, since the cuff pressure is not increased any more than required, the discomfort to the subject person and the time period required for blood pressure measurement are both minimized and the accuracy of blood pressure measurement is improved.

Abstract: A push-button switch having a lamp portion and a switch portion. The lamp portion includes a lamp, a lamp holder, a lamp casing, and a housing. The lamp holder is fixed within the housing and the lamp casing moves up or down to turn off or turn on the switch. The switch portion of the push-button switch includes a switch base, a plunger, and a cam. The plunger moves in conjunction with the lamp casing and has a cam formed on one end. The cam is guided along guides that are formed on the switch base, and holds the lamp casing and plunger in a raised position in which the switch is turned off and a lowered position in which the switch is turned off.

Abstract: Disclosed is an input circuit using a photo-coupler for circuit isolation which comprises a photo-coupler and an indicator for indicating the presence of an input signal both of which are adapted for an AC input signal as well as a DC input signal of either polarity. Typically, the input end of the photo-coupler comprises a pair of light emitting diodes which are connected in parallel with each other directionally opposite and the indicator comprises a pair of light emitting diode chips which are connected in a similar manner. Thereby, the input circuit can be adapted to input signals of all kinds and the indication of the presence of an input signal is accurate because the indicator is directly driven by the input signal and is not affected by the condition of any external circuit.

Abstract: A conveying apparatus of an IC card which is assembled in an IC card reader/writer includes upper and lower conveying belts to convey the IC card by sandwiching it. The upper and lower conveying belts are arranged so as to be deviated in the card conveying direction. A connector having contact members adapted to be come into contact with the contacts of the IC card is arranged in at least one of the spaces which are formed in both edge portions of the upper and lower conveying belts by the deviation of the positions of the conveying belts.

Abstract: In an electronic blood pressure meter, artifacts or disturbances of blood pressure measurement due to the motions of the arm or the body of the person whose blood pressure is to be measured is detected from the level of a pulse wave signal. If the pulse wave signal continues to be above a certain reference level for more than a certain threshold time period, it is determined to be indicative of the presence of an artifact which prevents accurate measurement of blood pressure. This process of detecting an artifact can be conveniently implemented as an interruption routine of a microprocessor. When such an artifact is detected, a warning signal may be issued and the cuff may be rapidly vented so that the renewed measurement can be carried out without any further ado.

Abstract: Disclosed is an electronic blood pressure meter which is adapted to measure blood pressure from a finger. A cuff for applying pressure to the finger comprises a plurality of chambers which are communicated to each other and, thereby, provides a sufficient flexibility to closely conform to the contour of the finger. A sensor for detecting pulse wave data may be conveniently place on the inner surface of the cuff and is adapted to detect the reflection of light by an artery. Further, an air buffer can increase the effective air volume of the cuff and can reduce the rate of the pressure drop of the air cuff for a given rate of air vent from the cuff. By deriving the pulse wave data and computing the systolic and diastolic blood pressure therefrom in the course of increasing the air pressure of the cuff, the discomfort to the patient whose blood pressure is to measured can be substantially reduced.

Abstract: In an electronic blood pressure meter, there are included a cuff adapted to be fitted around the arm of a patient whose blood pressure is to be measured and formed with a cavity, a device for pressurizing the cavity in the cuff, a device for gradually depressurizing the cavity in the cuff, a device for sensing the pressure in the cavity in the cuff and for producing an output signal representative thereof, a device for detecting a pulse wave component in the output signal produced by the sensing device, a device for determining the amplitude of the thus detected pulse wave component, a device for determining values for systolic blood pressure and diastolic blood pressure according to the thus determined amplitude of the pulse wave component and according to the output signal produced by the pressure sensing device, and a device for performing compensation relating to the values for systolic blood pressure and diastolic blood pressure.

Abstract: A cuff for blood pressure measuring apparatus, which is made of flexible material, includes an inner surface and an outer surface. The inner surface defines a cylindrical space for a finger to be inserted thereinto, while the outer surface together with the inner surface defines a fluid chamber for applying pressure to the finger. A sensor for detecting pulse wave data can be conveniently place on the inner surface of the cuff and is adapted to detect the reflection of light by an artery. The sensor can comprise of a light-emitting element and a light-sensitive element. The light-emitting element for emitting light at an artery of the finger and the light-sensitive element for receiving the reflected light from the artery are mounted on the inner surface adjacent to each other. A plurality of elements are provided at least either for the light-emitting element or for the light-sensitive element, thereby expanding the detection range of the arterial pulse wave in the finger.

Abstract: A card conveying appartaus is arranged between the right and left frames. A card one-sided setting member is swingably attached to one of the frames. This card one-sided setting member is obliquely held by a spring toward the side of the other frame. When a card is conveyed by the conveying apparatus, the card is pressed to the side of the other frame by the one-sided setting member, so that the position is restricted. The one-sided setting member is returned to the side of one frame by the card. The returned one-sided setting member is detected by one sensor. A detection signal of this sensor functions as a card detection signal indicating that the card is being conveyed.

Abstract: To improve reliability of a POS (point of sales) terminal device, an internal memory umit is further provided in addition to two external memory units having PLU (price look-up) files. Therefore, even if two external memory units develop trouble simultaneously, data (price, name, linked commodity section data and so on) related to a sold commodity are all read from the internal memory unit, whenever a bar code of the commodity is read through a scanner, before implementing registration processing. The data related to the commodities in the internal memory unit are updated whenever registration processing is implemented in dependence upon the normal external memory unit.

Abstract: A fuzzy logic circuit comprising a current mirror comprising an FET, a first input current source connected to the input side of the current mirror, a second input current source, a wired OR connected at its input side to the output side of the current mirror and to the second input current source, and an output terminal connected to the output side of the wired OR.

Abstract: In this planar linear pulse motor, first and second assemblies are mutually movable along an axial line. The first assembly includes a group of teeth which are arranged at a determinate pitch in a row along a line parallel to this axial line, each of these teeth being elongated in a direction perpendicular to the axial line. The second assembly includes four groups of teeth, each such group being arranged at the same determinate pitch also in a row along a line parallel to the axial line, with the phases of the four groups of teeth being offset from one another, and with each of these teeth also being elongated in a direction perpendicular to the axial line. The four groups of teeth of this second assembly each confront the group of teeth of the first assembly in parallel and are separated from those teeth by a relatively small gap.

Abstract: A drive circuit of a two-laminated electrostriction element, wherein a common junction of two sheets of electric distortion elements is connected to one of the driving power source through a first switching means, and the other terminal of the one electrostriction element is connected to the other of said driving power source, with the other terminal of the other electrostriction element being connected to a second switching means, thereby to rotate the other electrostriction element by the voltage charged in the one electrostriction element.

Abstract: As thin type yoke having excellent magnetic characteristic to including a pair of yoke segments having a wide iron segment attracting part which is extended and bent at the one end of a coil winding part, wherein said coil winding part is offset in the lateral direction and the end part thereof is mutually and placed in contact with the wide iron segment attracting part of the other yoke segment.

Abstract: A switching circuit for supplying electric power to a load from a power source includes a first relay device having a first switch and a semiconductor switching element connected in series with the first switch, power source and load. A second relay device is provided which is defined by a second switch connected parallelly to the semiconductor switching element and an actuating switch for enabling and disabling the semiconductor switching element. The second relay device is so arranged as to effect the make of the actuating switch and second switch in said order and to effect the break of the same in the opposite order. A delay circuit is provided for controlling the first and second relay devices such that when supplying a current to the load, the first and second relay devices are turned on in said order so that the first switch, the actuating switch and the second switch are turned on in said order.

Abstract: This electronic component of the rotary switch type may include: a casing; a disk shaped rotor, rotatably supported in the casing, and formed with a cam pattern system; a contact system which is actuated by the cam pattern system as the rotor is rotated; and a sheet spring. The sheet spring has: two pressure portions; a substantially flat portion, intermediate between the two pressure portions, which is stressed so as to press the two pressure portions against the cam pattern system as the rotor is rotated, for providing detent action for the rotor; and a fixing portion, fixed to the casing, and proximate and connected to the substantially flat portion. There may be two each of the substantially flat portion and the fixing portion.

Abstract: A slab-type optical device comprising a pair of single mode waveguides equal in phase constant and intersecting each other each at its one end and a pair of single mode waveguides different in phase constant and intersecting each other each at its one end. The pairs of waveguides are joined to each other at their intersections. The angle of intersection of the two waveguides in each pair is set to such a small value that when light propagates along the waveguide a very small distance, the variation in the spacing between the waveguides is negligible relative to the distance of propagation.

Abstract: A cuff for blood pressure measuring apparatus, which is made of flexible material, includes an inner surface and outer surface. The inner surface defines a cylindrical space for a finger to be inserted thereinto, while the outer surface together with the inner surface defines a fluid chamber for applying pressure to the finger. A light-emitting element for emitting light at an artery of the finger and a light-sensitive element for receiving the reflected light from said artery are mounted on the inner surface adjacent to each other. A plurality of elements are provided at least either for the light-emitting element or for the light-sensitive element, thereby expanding the detection range of the arterial pulse wave in the finger. The cuff is also provided with a device for triggering or halting air into or from the cuff when desired and for ensuring that air is exited from the cuff.