Abstract: The electronic clinical thermometer of the present invention has a temperature sensing portion (3), a control signal generating circuit (2) for generating a control signal for controlling operation of each of structural elements, a converting circuit (4) for converting an output signal generated from the temperature sensing portion into a digital signal, a temperature measuring section (6) for measuring the temperature based on the digital signal, storage circuits (7) for storing and updating a maximum value of the temperature measured by the temperature measuring section in order. Data comparing circuits (8) are provided for comparing the temperature stored in the storage circuits with a present measured value. Temperature rise detecting means (21) is provided for detecting a rising amount of the temperature based on a compared result of the data comparing circuits, and a buzzer (103) is provided for informing the rise of the temperature based on a signal of the temperature rise detecting means.

Abstract: An electronic thermometer for measuring body temperature has a temperature sensor for detecting a sensed temperature and for producing an output indicative of the sensed temperature and a temperature rise detector for detecting whether the sensed temperature is rising. If the sensed temperature is rising, the temperature rise detector produces a temperature rise signal. The thermometer is provided with circuitry for generating an audible signal in response to the temperature rise signal. The device thus audibly indicates that the sensed temperature is rising and that the temperature measurement is proceeding normally. The temperature sensor includes a thermosensitive oscillator, the oscillating frequency of which changes depending on a change in its temperature, and a reference oscillator for generating a reference signal. A temperature counter counts an output signal from the thermosensitive oscillator on the basis of the reference signal.

Abstract: In an electronic clinical thermometer comprising a temperature oscillating circuit having a temperature sensor for detecting the body temperature; a body temperature measuring circuit for making data on the body temperature in response to an output signal of the temperature oscillating circuit; a digital display device having seven-segment digital patterns for displaying the body temperature in response to a signal of the body temperature measuring circuit; and a battery voltage detecting circuit for detecting a voltage drop of a battery, a first additional pattern and a second additional pattern are provided between two adjacent digital patterns of the digital display device and also an additional pattern decoder for driving the first and second additional patterns is provided, and the additional pattern decoder and decoders provided for driving the two digital patterns are controlled by an output signal of the battery voltage detecting circuit, whereby a battery life warning mark having the shape of the bat

Abstract: A temperature detector made by a CMOS integrated circuit. The temperature detector comprises a first constant voltage circuit for producing a first constant voltage, a second constant voltage circuit applied with the first constant voltage for producing a second constant voltage, and a ring oscillator applied with the second constant voltage for producing an output voltage dependent of ambient temperature. Each constant voltage circuit has a standard resistor in the form of a diffusion resistor, a current-mirror circuit as a standard voltage generating circuit, and a voltage follower, and the ring oscillator has a delay resistor formed by a MOS transistor.

Abstract: An electrochromic display device comprising a plurality of segment electrodes which are selectively driven by a driving circuit via a plurality of lead members so as to display patterns of uniform density. Each of the segment electrodes is designed such that their areas are substantially uniform. In addition, for those segment electrodes which differ in size, the output impedence of the driving circuit is adjusted. Moreover, the electrical resistance of each lead member is substantially equalized and the drive is controlled in proportion to the number of segment electrodes driven simultaneously.