Abstract: The electric power supply device is incorporated in a wristwatch-type communication device having functions corresponding to those of the a watch and a portable telephone and has a power supply section constituted of a lithium-ion battery, a control section for controlling the operation of the entire device, a time measuring section having a clock function, a communication section having a telephone function, a first voltage detection section for detecting a drop in a voltage supplied from the power supply section below the voltage at which the communication section can operate, and a power supply shutoff section for stopping supply of electric power to the communication section by breaking the connection to the power supply section when a voltage drop below the predetermined level is detected by the first voltage detection section.

Abstract: There is provided a self-luminous display element driving device which prevents the luminance of a self-luminous display element from changing with the elapse of time and reduces the cost. In the device for constant-voltage driving the self-luminous display element by continuously making on and off states of application of a constant voltage to the self-luminous display element, the self-luminous display element driving device includes a circuit for generating deterioration information concerning a deterioration state of the self-luminous display element, and a circuit for adjusting a time width in which the constant voltage is applied to the self-luminous display element or a time width in which the constant voltage is not applied, on the basis of the deterioration information generated by the deterioration information generating circuit. The self-luminous display element may be, for example, an EL (electroluminescence) element or an organic EL element.

Abstract: A portable type distance/speed meter is designed for measuring a travel distance and a travel speed in response to GPS electromagnetic waves received by a GPS receiver.

Abstract: An information processor capable of recognizing whether the possessor (user) of the information processor is carrying the information processor or located in the vicinity of the information processor. The information processor performs a suitable processing operation according to the possessor's (user's) carrying or non-carrying condition. The information processor has a transmitting section to transmit a signal receivable only in the range of a predetermined distance to a wristwatch type information processor previously assigned, a receiving section to receive a signal sent from the wristwatch type information processor in response to the signal transmitted by the transmitting section, a decision section to make a determination as to whether the reply signal has been received by the receiving section, and a processing operation control section to execute a predetermined processing operation depending upon the result of the determination made by the decision circuit.

Abstract: A GPS signal receiving section measures a Doppler frequency of a carrier wave to output a three-dimensional velocity vector to a CPU 100. The CPU 100 calculates a cumulative distance from a signal receiving interval and velocity data to compare between the cumulative distance stored in a RAM 104 and the distance point data previously stored in the RAM 104. Where the cumulative distance exceeds the distance point data, a lap time is calculated and displayed on a display section 106 based on the time count data sent from the time count circuit 105. Further, the CPU 100 calculates and displays on the display section 106 a time to arrive at the predetermined moving distance from the velocity data, the cumulative distance and the predetermined moving distance stored in the RAM 104.

Abstract: In a GPS reception ratio detecting apparatus, a reception condition of GPS electromagnetic waves in a GPS receiver is judged, and a reception ratio indicative of a ratio of “receivable condition” of GPS electromagnetic waves to a total execution time of the reception process operation thereof is indicated.

Abstract: A portable GPS receiver receives a signal from a GPS satellite by a GPS receiving means to measure a position and a speed of the own receiver. A traveling pitch detector detects a traveling pitch of a human body. A timer determines an operating period to intermittently operate reception from the GPS satellite. A stride calculator calculates, on the operating period, a traveling stride from received positioning data between two points and a pitch detected by the traveling pitch detector during obtaining the positioning data. A speed/distance calculator calculates, on the operating period, a traveling speed and a traveling distance from the stride determined by the stride calculator and the pitch detected by the traveling pitch detector.

Abstract: A movement rate monitor comprises extraction circuitry for extracting a selected movement frequency component from a power spectrum output of a movement sensor, and a movement rate calculation circuit for calculating movement rate in accordance with the extracted frequency component. A display device may be included to display the calculated movement rate.

Abstract: There is disclosed a portable GPS (Global Positioning System) receiver carried by a user. The receiver measures the distance traveled by the user and the speed. In the prior art technique, if satellites cannot be captured, no measurements are made. To find the distance and speed accurately, the measurements have to be performed continuously, thus increasing the electric power consumed by the receiver. The inventive receiver once finds the speed from the Doppler frequencies of the carrier waves. Then, a first distance-calculating means finds the distance from the speed. A walk-detecting means detects walking. A step number-calculating means accumulates the number of steps taken in steps. A stride-calculating means finds the stride from the accumulated step number and from the found distance. Then, a second distance-calculating means finds the distance from the stride and from the accumulated number of steps. A speed-calculating means finds the speed.

Abstract: An improved GPS receiving apparatus may be worn on a user's arm and is not affected by the user's periodic arm swinging motion. A GPS signal receiver receives a GPS signal from GPS satellites, the receiver being mountable on a user's arm. A display is provided for displaying information based upon an output of the GPS signal receiver. An arm swing detecting circuit including an acceleration sensor detects the periodic swinging motion of the user's arm and outputs a corresponding periodic signal. A timing circuit sets a predetermined time during respective arm swing movements at which a GPS signal receiving operation will be performed based upon the periodic signal output by the arm swing detecting circuit. Operation timing of the GPS signal receiver is performed based on the output signal of the timing circuit so that a GPS signal receiving operation is performed at the same time during each cycle of periodic arm swinging motion to thereby cancel the effect of the periodic arm swinging motion.

Abstract: The system includes an antenna posture detecting device for detecting an antenna posture condition where it is apparently impossible to receive the wave, and a received signal operation controlling device for temporarily interrupting the wave receiving operation, in the case where it is impossible for the antenna to receive the wave, until the wave receiving operation is again possible.

Abstract: A pulse rate counter that can accurately measure pulse rate regardless of whether the user is resting or exercising is disclosed. In the pulse rate counter, a pulse wave component extraction means extracts pulse wave components based on the frequency analysis results of a first calculation means and a second calculation means. During this process, an extraction method switching means determines whether the user is resting or exercising based on the amplitude level of the signal output of a body movement signal conversion means, the level (power) of the frequency spectrum of the output signal of the second calculation means, or the degree of variation in the level. If the user is determined to be resting, the extraction method switching means causes the pulse wave component extraction means to extract the pulse wave components based on the frequency analysis result of the first calculation means.

Abstract: To achieve a pulse wave measuring apparatus whereby the sensor unit can be easily and consistently worn against the skin surface, a wristwatch type pulse wave measuring apparatus is comprised as follows. Specifically, light transmittance plate 34 is disposed on the outside surface side of LED 31 and phototransistor 32 in sensor unit 30. Outside surface 341 of light transmittance plate 34, which is pressed against the finger, projects above the reference surface, which is outside surface 361 of sensor frame 36 surrounding light transmittance plate 34. Two body ground terminals 38 contacting the finger surface when light transmittance plate 34 is pressed tight to the finger are disposed around light transmittance plate 34; the body ground terminals 38 also project above the reference surface. However, the position of outside surfaces 381 of body ground terminals 38 is lower than the outside surface 341 of light transmittance plate 34.

Abstract: A period and frequency measurement device is provided having a sensor for measuring pulse waves and body movements. A window determination circuit sets a reference value in accordance with previously measured pulse waves and body movements and determines whether currently measured pulse waves and body movements is within a window defined by upper and lower margins relative to the reference value. A window correction circuit corrects the window to be used for a next pulse waves and body movement measurement by applying a specified correction to the current pulse waves and body movements measurement if a determination result of the window determination circuit indicates that the current pulse waves and body movements measurement is outside a current window.

Abstract: A pulse rate monitor having an enhanced accuracy, reduced power consumption and reduced calculation time comprises a pulse wave extraction circuitry for extracting pulse wave frequency components from a power spectrum output of a pulse wave sensor and a movement sensor, and a pulse rate calculation circuit for calculating a pulse rate in accordance with the extracted pulse wave frequency components. A display device may be included to display the calculated pulse rate. In order to reduce power consumption, unnecessary circuitry may be deactivated and unnecessary operations may be avoided by use of a changing circuit which changes the method of calculation when movement of the user is not detected. Accordingly, when no movement has been detected for a predetermined period of time, the pulse rate may be calculated based upon a direct output of the pulse rate sensor, while the frequency analysis circuitry and calculation circuitry may remain deactivated.

Abstract: To avoid the parasitic bipolar effect occurring in MOS type devices, a monolithic boosting integrated circuit is formed using dielectrically isolated charge boosting elements. Each boosting element is formed of a rectifying element and a charge storing element connected in series. A semiconductor on insulator substrate is formed with a supporting substrate, an insulating layer and a semiconductor layer. The charge boosting elements are formed in the semiconductor layer and are electrically isolated using a dielectric film deposited over the semiconductor layer. By isolating the devices from the substrate, the parasitic bipolar effect is avoided and downsizing is possible thus permitting the formation of complex circuitry in a monolithic integrated circuit package.

Abstract: A photoelectric pulsation type pulsimeter irradiates the ray of light to a capillary blood vessel of a finger tip or the like and detects the level of the reflected ray of light changing with the pulsation as the pulsation. The present invention improves stability of the pulse rate display by disposing pulse width evaluation means between a pulsation detection circuit for detecting the pulsation and pulsation calculation means for measuring the period of the pulsation signal and calculating the pulse rate per minute.The pulse width evaluation means evaluate the pulse signal outputted from the pulsation detection circuit and the pulse rate calculated by the pulsation calculation means.

Abstract: A rate displaying oscillator circuit for converting and displaying a rate is provided separately from an oscillator which generates a reference signal so that, even when the period of a logical regulator is extended in order to improve the resolving power of the logical regulation, the average rate of the logical regulator can be measured with a commercially available measuring device.

Abstract: A timepiece has a stepping motor for intermittently rotating hands to indicate the time, a solar cell for temporarily generating electric charge and capacitors for storing the generated electric charge to supply an operating voltage. A drive circuit repeatedly applies a combination of first and second consecutive driving pulses having electric powers proportional to the operating voltage to the stepping motor, while a detector detects the operating voltage. A control circuit is connected between the drive circuit and the detector for controlling the detector to effect the operating voltage detection after the application of the first driving pulse and before the application of the following second driving pulse. When decrease of the operating voltage is detected after the application of the first driving pulse, the operating voltage is increased before the application of the following second driving pulse so as to ensure the rotation of the hands.

Abstract: An electronic analog timepiece with voltage checking function, which detects the power source condition, and which informs the user of the necessity of charging operation by changing the magnitude of the power source voltage into the distance by which the hand is carried or the amount by which the hand is moved upon operation from external side.The hand is stopped from moving for a predetermined period of time in the first time only in which the voltage checking operation is carried out.