Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 751 - 800 out of 4,464

Document Document Title
JP3510054B2
To output a signal equal to a set signal waveform without complicating the whole constitution by executing signal processing based on stored waveform data in response to the input of logic data and generating an output signal having a pr...  
JP3505120B2
To compensate fluctuation in load capacity and a temperature and to minimize power dissipation by generating bias current proportional to capacity, a clock frequency and an absolute temperature through the use of an integrated capacitor ...  
JP2004072657A
To solve a problem that amplitude of triangular waves is fluctuated when frequency is changed.This triangular wave oscillation circuit is provided with a capacitor CT, a charge/discharge circuit 11 performs charge or discharge to the cap...  
JP2004064427A
To provide a predrive circuit and a display unit for driving an output element so as to stably transmit a control signal even when a reference potential generated at an output element side is turned into a high voltage.A comparator circu...  
JP2004023556A
To provide an electronic apparatus capable of entirely and efficiently reducing EMI noise when a plurality of kinds of clocks acting like an operation reference exist.The electronic apparatus applies frequency spread processing to a cloc...  
JP3487435B2
PURPOSE: To reduce the extension of vertical retracing due to a feedback signal. CONSTITUTION: A vertical deflecting amplifier 53 has an output transistor(TR) Q1 which operates as a conductive switch for coupling a boosted source voltage...  
JP3487144B2
To suppress the loss of an element, etc., controlled with pulses generated by the pulse generating device by preventing the pulse signal generating device from malfunctioning. A triangular wave generating circuit 2 generates a triangular...  
JP3486718B2
PURPOSE: To provide a waveform forming circuit which can output a signal of an optional waveform (sine wave, triangular wave, trapezoidal wave, etc.) and an optional frequency. CONSTITUTION: A storage means 121 stores the information on ...  
JP2004007324A
To provide a triangular wave generating circuit of class D amplifier capable of generating a triangular wave with high accuracy without variations in the peak value and offset deviations.An integration circuit comprises an operational am...  
JP3482278B2
To provide an oscillation circuit capable of reducing a layout area by realizing a constant current circuit consisting of a low resistor element, reducing power supply voltage dependency and shortening rise time at the starting. The osci...  
JP3475602B2
To provide a waveform shaping circuit with which the waveform of a high frequency pulse signal can be shaped into desired waveform without necessity for performing skillful control setting. This circuit is provided with a current control...  
JP3464493B2
PURPOSE: To improve a transient response at the time of channel change and to prevent the flow of still image for display on a screen by correcting the amplitude of vertical deflection lamp signal, when a synchronization signal from a br...  
JP2003532325A
(-- 57) summary -- in the waveform generation machine by the 1st aspect of this invention, when a repetition nonlinear waveform changes the number repeatedly supplied to a pulse reduction circuit between periods, it is generated. Then, t...  
JP3461115B2
To reduce the cost of an AGC circuit by increasing a constant current only when necessary and reducing a pull-in time. In addition to a first comparator circuit 3, a second comparator circuit 4 for outputting only when the sample voltage...  
JP2003304143A
To automatically correct a pulse voltage waveform in a short period of time.A pulse voltage generating device is provided with a PFN3, and when a charging voltage is applied to the PFN, the PFN is charged corresponding to the charging vo...  
JP3458961B2
PURPOSE: To prevent the generation of an excessively large current in a switching transistor during a transition period. CONSTITUTION: The circuit 200 contains a diode CR1, a resistor R20, a resistor 40, and a diode CR2 which are connect...  
JP3456586B2
PURPOSE: To prevent an output transistor(TR) from being set to an abnormal stable state. CONSTITUTION: A 1st winding W1 of a current transformer T1 included in a drive stage for a horizontal deflection output TR Q2 is coupled with a coll...  
JP2003283312A
To provide an oscillation detecting circuit which can detect stably oscillation of an oscillation circuit without being affected by an irregularity in transistor characteristic.Current sources IS11, IS12 are connected in series between a...  
JP2003274638A
To provide a timing circuit wherein various kinds of timing signals for generating a PWM signal are generated most suitably and a switching power source device of a push-pull type or the like is effectively and stably operated in the sta...  
JP3450373B2
PURPOSE: To arbitrarily vary a modulation phase by 1/2N (N is an integer more than 1) units of a single picture element in an (m)-fold picture element modulation without using a higher frequency than the frequency of an input clock at th...  
JP2003258611A
To provide an output buffer circuit which shifts the voltage of a high-speed output signal, while suppressing the noise due to the signal transition.In driving a PMOS transistor P1, NMOS transistors N11, N12, N13 are turned on in a state...  
JP3445014B2
PURPOSE: To eliminate the need for manual switching by providing 1st and 2nd contact lead-out parts to which each common conductor is integrated and at a prescribed position of which each contact turns to be pressed into contact to the c...  
JP2003229745A
To provide an oscillator which generates a stable oscillation waveform, when the change in an environmental temperature is large.In a first voltage source, a first divided voltage, wherein a DC power source is divided into a plurality of...  
JP3436005B2
To easily realize a waveform generator by which a high quality focus characteristic is obtained by eliminating improper waveform to a CRT where non-parabolic wave is a requirement without distortion due to nonlinearity of a frequency pha...  
JP2003209462A
To provide a triangular wave generating circuit suitable for the PWM control of a semiconductor power converting circuit.The circuit is composed of resistors R1-R4, diodes D1-D3, a capacitor C, a comparator element Cp having the output t...  
JP3424791B2
To generate drive voltage pulses always having a constant rising period and a constant falling period even when peak voltage is changed by a relatively simple circuit constitution in a drive circuit of a printing head generating trapezoi...  
JP2003188693A
To solve the problem wherein the amplitude of a triangular wave signal becomes larger as the frequency of the triangular wave signal increases, resulting in a decrease of a maximum on duty ratio.In an oscillation circuit used for PWM (pu...  
JP2003520482A
An electronic circuit for switching an inductive load (10) by way of a bipolar transistor (1) whereby a switching signal is supplied to the base (5) of a switching transistor (1) via an LRC circuit (6, 7, 9). During switching off the LRC...  
JP3421560B2
To allow the generating circuit to generate a constant amplitude (peak level) and to make a tilt angle of a triangular wave constant at all times even with frequency changes in input pulse signals. The generating circuit is provided with...  
JP2003152508A
To generate a two phase triangular wave signal with an equal amplitude and a constant phase difference.A Vreg terminal is to input controlled power supply, and a GND terminal is for ground connection. A current source 10 is to supply a c...  
JP3408006B2
PURPOSE: To suppress the frequency fluctuation of a clock signal obtained from the oscillation circuit even in the case of occurrence of fluctuation of a power supply voltage or of dispersion in components of the oscillation circuit prov...  
JP3408436B2
To provide a vertical saw tooth wave oscillation circuit which can shorten the time required upto the time when a saw tooth wave having a fixed amplitude is obtained. A vertical saw tooth wave oscillation circuit is provided with a first...  
JP2003142990A
To provide a constant current sweeping circuit by which a comparator circuit 10 suppresses the generation of a non-linear part and a stand-by part is rapidly recovered from a sweep stop state even in the case of a high speed processing c...  
JP2003143023A
To provide a transmitter capable of decreasing unwanted radiation components more efficiently by shaping the rise and fall of pulse into desired waveforms.A power distributor 12 distributes a continuous wave from a signal generator 11 to...  
JP3406613B2
PURPOSE: To obtain two oscillation outputs whose phases are inverted to each other and to make the amplitude and the period of both the oscillation outputs accurately equal to each other respectively by adopting the triangle wave oscilla...  
JP3398619B2
To obtain a power factor correction circuit which has hardly the limitation of a duty factor with a high power factor by using a simple power factor correction circuit utilizing a reverse sawtooth wave. An output voltage Vmo of a multipl...  
JP2003110364A
To provide a signal waveform generating output device which has no limit as to the types of signal waveforms to be formed and is capable of realizing a constitution simply and at a low cost.The signal waveform generating output device 1 ...  
JP2003101389A
To provide an oscillation circuit capable of obtaining a stable triangular wave even when an oscillation frequency becomes high.Switching of charging and discharging is conducted by using a logic circuit which has two comparators 1, 2 an...  
JP2003510756A
A programmable reference voltage controls a high-voltage source via a programmable voltage divider. The programmable voltage divider scales a fixed reference voltage to a scaled reference value that is used to control the generation of a...  
JP2003060507A
To provide a lamp voltage generation circuit where the voltage gradient of a lamp voltage varies, a chip area can be reduced, and a voltage gradient error for each chip in the lamp voltage can be reduced. A lamp voltage generation circui...  
JP2003017953A
To provide a downsized analog signal amplifier circuit that can be easily manufactured and can maintain low distortion even when the gain is changed.A comparator 102 compares a 1st sawtooth wave Win having a level of an input signal from...  
JP2003008404A
To provide an oscillation circuit that can efficiently generate a polyphase triangle wave signal.A switch SW 1 is switched ON/OFF on the basis of a 1st switching signal SQ 1 generated by a 1st charge/discharge changeover circuit 21 and a...  
JP2003008368A
To provide a current mirror circuit which can obtain always a constant mirror ratio and operate in the vicinity of a ground potential, and a trapezoidal wave voltage generating circuit using the current mirror circuit.When a control sign...  
JP3354926B2
A circuit for generating a vertical frequency deflection current for the electron beams in the picture tube of a television receiver includes a current sensor resistor having one end connected to direct voltage potential by two resistors...  
JP2002341959A
To reduce peak values of spectrum at a reference frequency of a clock signal and the respective harmonic frequencies of it without extending a frequency modulation range to the clock signal in a clock signal generating method and its dev...  
JP3334149B2
PURPOSE: To obtain a sawtooth wave generation circuit which generates a sawtooth wave with constant amplitude synchronizing with the pulse width H and L of an input pulse and to generate a pulse proportional to the cycle and duty of the ...  
JP2002534939A
A secondary winding of a horizontal flyback transformer of a horizontal deflection circuit develops a horizontal retrace pulse voltage. A secondary winding of a second transformer is coupled in series with a vertical deflection coil of a...  
JP3324278B2
PURPOSE: To shape the waveform so as to form the edge of an input binary signal in a sine-wave shape without using any linear circuit by connecting one end of each of plural resistors, the other ends of which are connected with the outpu...  
JP2002261588A
To turn on or off constant current sources IS1 and IS2, which charge or discharge oscillation capacitors Cosc without delays for extracting a stable triangular-waveform voltage Vosc of high frequency from the capacitors Cosc.A comparison...  
JP3317709B2  

Matches 751 - 800 out of 4,464