Abstract: A process for preparing an aqueous dispersion of pigment-containing polymer particles, comprising the steps of (A) removing an organic solvent from a mixture (I) comprising an organic solvent solution of a polymer, water and optionally a neutralizing agent to give a solvent-removed product; and (B) subjecting the solvent-removed product obtained in step (A) to a dispersion treatment, wherein a pigment is added to the mixture (I) or the solvent-removed product. The aqueous dispersion of pigment-containing polymer particles can be suitably used for a water-based ink for inkjet printing.

Abstract: A linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.

Abstract: Disclosed is a linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.

Abstract: Disclosed is a linear guide device in which a rate of change expressed as “Dmax−Dmin”, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2−dx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.

Abstract: A process for preparing an aqueous dispersion of pigment-containing polymer particles, comprising the steps of (A) removing an organic solvent from a mixture (I) comprising an organic solvent solution of a polymer, water and optionally a neutralizing agent to give a solvent-removed product; and (B) subjecting the solvent-removed product obtained in step (A) to a dispersion treatment, wherein a pigment is added to the mixture (I) or the solvent-removed product. The aqueous dispersion of pigment-containing polymer particles can be suitably used for a water-based ink for inkjet printing.

Abstract: There are provided 2.sup.n -number of data latches (2), 2.sup.n -number of dynamic range setting latches (7) and 2.sup.n -number of output dynamic range change circuits (8) in correspondence to 2.sup.n -number of D/A converters. Controlled by the outputs of AND gates (4), the respective dynamic range setting latches (7) output dynamic range setting data DR to the corresponding output dynamic range change circuits (8). The output dynamic range change circuits (8) change dynamic ranges for the analog outputs of the corresponding D/A converters (5) as a function of the dynamic range setting data DR to output the changed analog outputs from corresponding output terminals (26).This enables the dynamic ranges for the plurality of D/A converters to be set individually without the provision of further external terminals.

Abstract: A class-AB push-pull drive circuit comprises a P channel MOS transistor having a source connected with a DC power source, a drain connected with an output terminal and a control electrode coupled with an input terminal through a voltage-to-current converter and a current-to-voltage converter and an N channel MOS transistor having a source grounded, a drain connected with the output terminal and a control electrode coupled with the input terminal. Conversion characteristics of the converters are so set that a potential difference between the control electrodes of the transistors is kept constant independently of the voltage of an input signal. Thus, the rise and fall of voltage at the output terminal during the conducting state of respective transistors is decreased. In addition, a push-pull drive operation by the transistors can be achieved in accordance with the input signal.

Abstract: In a magnetic recording circuit with a bias current circuit adapted to superimpose a bias current from a bias oscillator on a recording signal and to supply a resultant signal to a magnetic head, there is provided a resistor for detecting the bias current flowing through the magnetic head, a rectifier circuit for rectifying and smoothing a signal developing across the resistor, and a control circuit for comparing the output voltage of the rectifier circuit with a reference voltage and producing an output signal which controls the oscillation level of the bias oscillator, whereby the bias current flowing through the magnetic head can automatically be set to a predetermined level. A variable resistor for adjustment of the bias current and adjustment step for the variable resistor can be dispensed with.

Abstract: A filter integrated circuit having a reference level generator circuit for attenuating its input signal and generating a reference level signal, a pseudofilter circuit including resistors and a variable capacitor as filter elements, and an error amplifier unit for comparing the level of the output signal of the reference level generator circuit with the level of the output signal of the pseudofilter circuit and for generating an automatic adjustment control signal in accordance with the level difference between the output signals. The automatic adjustment control signal is supplied to the pseudofilter circuit to change the capacitance value of the variable capacitor in the pseudofilter circuit so that the output signal level of the pseudofilter circuit may become equal to the level of the reference signal. The automatic adjustment control signal is also supplied to at least one filter circuit to change the capacitance of a variable capacitor included therein.

Abstract: Disclosed is a circuit for emphasizing a video signal in the vertical direction of a television picture for minimizing noise appearing during reproduction. In the circuit, a signal obtained by delaying an input video signal by one horizontal scanning period is positively fed back through a feedback circuit to the input of the input video signal. An amplitude difference signal between the video signal after being fed back through a positive feedback loop and the delayed video signal is produced and added to the input video signal to provide an output video signal.

Abstract: An FM signal demodulation circuit comprises a plurality of inverters and a capacitor. Each of the inverters is constituted by an integrated injection logic (I.sup.2 L) including a transistor and an injector current source.

Abstract: A constant-voltage circuit includes a transistor (Q3) for output control connected between a source potential and a ground potential and a divider circuit (R1, R2, D2, D3) which are connected in series. The dividing point of the divider circuit connected between the emitter of the transistor (Q3) and the ground potential serves as an output terminal to be supplied with a predetermined voltage by the emitter of the transistor (Q3), so that a constant voltage appears at the output terminal. Connection between the base and the collector of the transistor (Q3) is so improved that the emitter voltage is not changed following a change in the source voltage. More specifically, the transistor (Q3) is connected in such a manner that the collector-to-emitter voltage is continuously clamped by the base-to-emitter voltage of the transistor (Q3), so that the transistor (Q3) is not subjected to a base width modulation effect and thus the emitter potential is not changed following the change in the source voltage.

Abstract: Disclosed is a speed and phase control system for a moving apparatus driven by an electric motor, or the like, and provided with a speed control system for controlling the moving apparatus to an initially set speed, a phase control system for synchronizing the phase of the moving apparatus with a reference signal, and an error correction device storing therein a target value of and for comparing an actual speed or a phase of the moving apparatus with the target value to detect an error therebetween to thereby correct the initially set value in accordance with the error, whereby control is made such that the moving apparatus is operated at the target value of speed and phase thereof. Further, the error correction device is cut off from the speed control system when the speed reaches a value near the target value and at the same time the operation of the phase control system is started.