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Matches 951 - 1,000 out of 1,437

Document Document Title
JPH0349422A
PURPOSE: To obtain an oscillation circuit with high stability although the circuit is compact, energy consumption is reduced and cost is lowered by storing the compensation control voltage value of a voltage control oscillator(VCO) corre...  
JPH0259437B2  
JPH02295223A
PURPOSE: To omit the use of an equipment of a large scale by changing the temperature within a range where the characteristic of a temperature compensated oscillation circuit is assured and producing automatically the correction value at...  
JPH0245837Y2  
JPH0249060B2  
JPH0243369B2
An integrated circuit voltage controlled oscillator (VCO) consists of an astable multivibrator with external fixed components resistor RT and capacitor CT. The multivibrator has a centre frequency timed by constant currents I1 charge and...  
JPH0242244B2  
JPH02214310A
PURPOSE: To quickly make the frequency at the time of starting stable by setting the initial condition of a ROM (initial setting storage circuit) so that a temperature compensation code at rising of a power supply reaches a prescribed va...  
JPH02202719A
PURPOSE: To write data into a ROM with high efficiency and with no mistake by setting a controller between the ROM of a temperature compensation oscillator and a temperature information signal generator to output the temperature informat...  
JPH0234202B2  
JPH02192317A
PURPOSE: To prevent an oscillation frequency from changing against the change of an environmental temperature or a source voltage by providing an oscillator whose oscillation frequency is provided with characteristic having negative incl...  
JPH02180410A
PURPOSE: To improve productivity, to reduce costs and to miniaturize the oscillator by setting a reference frequency temperature characteristic obtained with averaging the frequency temperature characteristics of plural crystal oscillato...  
JPH02155312A
PURPOSE: To prevent the fluctuation of an oscillated frequency to be caused when the temperature is decreased or increased including a compensation code conversion temperature by varying the output of a compensation code to the same temp...  
JPH02134021A
PURPOSE: To make a frequency with respect to a temperature change stable by using the control voltage of a voltage controlled oscillation circuit(VCO) subjected to PLL(Phase locked loop) control and applying frequency compensation of the...  
JPH0220163B2  
JPH02111122A
PURPOSE: To keep the frequency of an oscillator to nearly a constant value by providing two inverting circuit means, an adder means of their outputs, a feedback means and a control means controlling the oscillating period of an oscillate...  
JPH0228143U  
JPH026655Y2  
JPH0224640U  
JPH0242817A
PURPOSE: To prevent an influence due to a leading-in phenomenon and to stabilize a frequency by providing first and second voltage controlled oscillators, and suppressing fluctuation of the oscillatiion central frequency of the first osc...  
JPH026243B2  
JPH0218121U  
JPH0216620U  
JPH024145B2
A circuit arrangement includes an integrated semiconductor circuit with a plurality of connection leads in which stray capacitances with equal temperature coefficients exist between one connection lead and the two adjacent, second and th...  
JPH022721A
PURPOSE: To stabilize the operation of a voltage controlled oscillator and to prevent step out from being generated by providing an ambient temperature detecting means at a phased locked loop oscillation circuit provided with the voltage...  
JPH01286521A
PURPOSE: To prevent the fluctuation in the oscillated frequency of an oscillation circuit due to on/off of an amplifier circuit by terminating the output of the oscillation circuit when the amplifier circuit is turned off. CONSTITUTION: ...  
JPH01272322A
PURPOSE: To drive a semiconductor device at a maximum frequency band for an ambient temperature by changing the oscillation frequency of an oscillator by a signal outputted from an ambient temperature measuring instrument. CONSTITUTION: ...  
JPH01220505A
PURPOSE: To provide a surface acoustic wave(SAW) oscillator, of which the frequency is exactly controlled, by providing one servo control loop at least for controlling a heating means coupled to a resonator for setting an output frequenc...  
JPH01212005A
PURPOSE: To substantially improve the total temperature stability of an LC oscillation circuit by distributing a positive feedback path to two partial paths which are a 1st partial path with temperature dependence and a 2nd temperature-n...  
JPH01174105A
PURPOSE: To simultaneously compensate temperature compensation of plural crystal oscillation sections, to decrease the circuit scale and to attain high reliability and low power consumption by adopting the constitution that plural digita...  
JPH01165209A
PURPOSE:To perform the adjustment of a central frequency and that of deviation by simultaneous adjustment by the same voltage by using three gm amplifiers and four current sources. CONSTITUTION:A first current source controls the gm of a...  
JPH01114121A
PURPOSE:To correct the oscillation frequency against a change in the operating environment such as variance at manufacture or temperature change by measuring the frequency of the oscillator periodically based on a basic clock and switchi...  
JPH01108801A
PURPOSE: To reduce the rotational effect of a correction curve for resetting frequency by connecting a frequency adjusting circuit for adjusting frequency in accordance with temperature to the terminal of a variable capacity element thro...  
JPS6482808A
PURPOSE: To make this oscillator stable against mechanical vibration, to easily attain operation, and to attain positioning in a simple way by hardly connecting the bottom part of a housing with a cover with a pole positioned at the cent...  
JPS6471212A
PURPOSE: To reduce power consumption and to eliminate difficulty in usability by forming a circuit as a single integrated circuit based on compound semiconductor technique and almost fixing its oscillation frequency in spite of fluctuati...  
JPS6455910A
PURPOSE: To prevent a frequency change due to humidity with simple constitution by inserting a fixed resistor in parallel with a variable resistor. CONSTITUTION: A power voltage applied to a power terminal 1 is fed to a high frequency os...  
JPS6451818A
PURPOSE: To provide a frequency stabilizing means, in which the oscillation frequency is not affected by parameter spread, by feeding back a voltage between both terminals of a reference element on a 2nd current branch to a 1st current b...  
JPS6444122A
PURPOSE: To improve the temperature resolution and to reduce the power consumption by measuring an increment of a periodic time of a gate signal at each temperature by means of a measuring pulse with/without frequency division of a refer...  
JPS6432531A
PURPOSE: To attain low-voltage operation and to improve oscillating frequency characteristics by providing an oscillator making oscillation and giving an output and a boosting circuit boosting a signal voltage generated from the oscillat...  
JPS6421514U
A circuit is provided for frequency drift compensation of a tuning diode in tunable RF-circuits, and comprises a temperature-responsive voltage divider coupled between an independent voltage supply source and a reference potential, the t...  
JPS641969B2  
JPS6410729A
PURPOSE: To exactly control the frequency of a main oscillating part, and to obtain an oscillator to oscillate at a stable frequency against a temperature change by using again the output of the main oscillating part as a standard for a ...  
JPS641968B2  
JPS641970B2  
JPS6367159B2  
JPS63309003A
A temperature-compensated piezoelectric oscillator of high-spectral purity, capable of being controlled in frequency, consists of a compensation circuit, a processing circuit, a phase-shifting circuit, containing the piezoelectric resona...  
JPS6365160B2  
JPS6362924B2
A temperature-compensating voltage generator circuit for compensating the temperature characteristics of an electric device whose electrical characteristics vary in accordance with the change of the ambient temperature and can be changed...  
JPS63272225A
PURPOSE: To realize a compensating circuit capable of improving whose temperature detection sensitivity at a prescribed temperature region by constituting the titled circuit by a temperature sensor section, a reference oscillation sectio...  
JPS6346602B2  

Matches 951 - 1,000 out of 1,437