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JPS5435749B2 |
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JPS54126448A |
PURPOSE: To supply a high-precision compensation with a low cost in a short delivery time by generating an output voltage, which has a linear or curve gradient according to peripheral temperatures, to restrain oscillated frequency deviat...
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JPS54118871A |
PURPOSE: To enable the selection and change of patterns to be performed through operations of external switches by preparing plural sets of frequency correction quantity patterns. CONSTITUTION: A memory circuit is constituted by the patt...
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JPS54128457U |
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JPS54118060U |
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JPS54105580A |
PURPOSE: To perform controlling of temperature compensation in a circuit manner and reduce space and cost by programming the frequency correction quantities for the temperature having been calculated from portable temperatures in memory ...
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JPS5491375A |
PURPOSE: To prevent the step shift due to seasonal changes in temperature and to automatically select the step thereby to effect the correction by storing the step corresponding to a preset temperature change in a step correcting circuit...
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JPS5490474A |
PURPOSE:To stabilize the temperature characteristics of a microwave component by additionally providing a heater for heating the component and a stabilized temperature control circuit for controlling the heater upon detection of the rela...
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JPS5495280U |
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JPS5476261A |
PURPOSE: To make output signals be time standard by changing the frequency dividing ratios of a frequency divider according to the differences in frequencies of two oscillation circuits. CONSTITUTION: Piezoelectric vibrators 3, 4 are con...
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JPS5474467A |
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JPS5432363A |
PURPOSE: To reduce frequency changes over a wide range by using two crystal vibrators which are different in zero temperature coefficient temperature Tp but are equal in frequency at Tp and using the vibrator of a higher frequency out of...
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JPS5428177A |
PURPOSE: To achieve the reduction in cost by providing two crystal oscillators and operators, registers, ROMs, counters and control circuit and performing the absolute value correction of rate or temperature correction depending upon the...
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JPS5428178A |
PURPOSE: To perform temperature correction of an electronic watch and achieve the reduction in its cost by using the compsotie signal of two crystll soscillators as the clock pulses of beat signal counters.
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JPS5423455A |
A radio frequency oscillator-modulator for use in a video game includes a folded metal shield box having a slot on one of its ends in which a similarly slotted printed circuit board containing the oscillator and modulator is mated with. ...
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JPS548358U |
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JPS542043A |
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JPS54847A |
Crystal oscillators have been provided with a voltage sensitive capacitor or varactor which can be varied to improve the frequency stability of the oscillator over the desired range of temperature. A temperature compensator is provided f...
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JPS53146560A |
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JPS53141064A |
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JPS5344304B2 |
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JPS5340855B2 |
1403282 Oscillator circuits TOYO TSUSHINKI KK 3 April 1973 [3 April 1972] 15800/73 Heading H3F The invention relates to a temperature-compensated crystal oscillator in which compensation over a temperature range is obtained by using thre...
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JPS53112650A |
PURPOSE: To form the heater circuit for temperature compensation adjustable for power consumption simply and to effectively utilize it with the temperature compensation at a low temperature region, by providing the heater using a power t...
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JPS53109483A |
PURPOSE: To establish the circuit components having resistive elements or capacitive elements of high accuracy, by adding the digital circuit constituted with memories or the like the semiconductor elements.
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JPS5394752A |
PURPOSE: To obtain the temperature-compensating oscillator which maintains the stable constant temperature and whose adjusting processes are simplified, by providing another temperature sensing element with its temperature detecting sens...
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JPS5327504B2 |
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JPS5368154A |
PURPOSE: To increase the stability to the temperature change and the change in power supply voltage of the output frequency of the crystal oscillator, by providing the temperature control circuit and the regulating power supply circuit w...
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JPS5357071A |
PURPOSE: To enhance the stability of an electronic watch, in which the frequency of an LC oscillator is used as a time standard, while reducing the cost thereof by accomplishing the adjustment of gain and loss with the use of an electron...
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JPS5357070A |
PURPOSE: To enhance the stability of an electronic watch, in which the frequency of an LC oscillator is used as a time standard, while reducing the cost thereof by accomplishing logically the adjustment of gain and loss with the use of a...
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JPS5352463A |
PURPOSE: In a regulation adjustment in an electronic watch wherein the oscillation frequency of a CR oscillator is made time standard, rough adjustment is made logically by electronic circuits and fine adjustment by C or R, whereby the s...
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JPS5320445U |
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JPS5313861A |
PURPOSE: To make the oscillating circuit controlling the oscillating frequency with varactor diodes into the circuit having less variation for the oscillating frequency to the ambient temperature.
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JPS5312255A |
PURPOSE: To obtain the temperature charactenstic of high accuracy, and to make the temperature correction of low consumption power, by forming the main and the subordinate oscillation bodies by use of two piezoelectric (crystal) oscillat...
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JPS52147481A |
A method and apparatus utilizing a quartz crystal resonator with an orientation substantially equal to (yxwl) 21.93 DEG /33.93 DEG vibrating simultaneously in two thickness modes to accurately measure temperature and unknown frequencies ...
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JPS52141547A |
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JPS52150952U |
A temperature-compensated crystal oscillator for correcting frequency variations caused by temperature changes by means of a differential amplifier which detects an unbalanced voltage in a bridge circuit including a temperature sensitive...
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JPS52119849A |
The present invention relates to the modification of the temperature-induced drift in propagation time of surface elastic waves. The invention proposes to achieve this modification by selecting a suitable crystal cut of the crystalline s...
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JPS52117025A |
PURPOSE: To realize the power unit of digital circuit which does not generate the unused pulse even if the power voltage exceeds the operation threshold voltage.
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JPS52113753U |
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JPS52111546U |
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JPS5299756A |
PURPOSE: To memorize the frequency temperature characteristics of oscillator and theoretically compensate the frequency temperature characteristics in accordance with the memory by means of the electric circuit.
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JPS5297693A |
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JPS5293257A |
PURPOSE: To reduce the fluctuation in the oscillation state caused by a disturbance by composing of the oscillator including an active element, the detection circuit detecting the source current being supplied to this oscillator and the ...
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JPS5274262A |
PURPOSE: To provide improvement of receiving condition by producing always uniform voltage dispensing with influence of ambient temperature by utilizing a thermistor in DC bias circuit of a transistor for local oscillation in a tuner use...
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JPS5227247A |
PURPOSE: Increase yield of temperature characteristics by coupling an oscillator using a GT-cut quartz oscillator and a demultiplier having an adjustment means for frequency.
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JPS5221756U |
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JPS51139751A |
A circuit for generating a temperature varying control voltage which is applied to a varactor diode to temperature compensate a crystal oscillator is disclosed. The circuit produces a substantially linear voltage versus temperature varia...
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JPS5149863Y2 |
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JPS51135451A |
PURPOSE: A micro-wave oscillation circuit which automatically compensates the fluctuation of transistor HFE.
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JPS51135348A |
PURPOSE: To obtain a stabilized bias circuit for MOSIC which is not affected by variations of ambient temperature and power supply voltage fluctuations.
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