Abstract: Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result.

Abstract: Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result.

Abstract: Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result.

Abstract: In a related transmitting circuit employing electromagnetic induction that is used in a communication system, there is a problem in that, because only one inductor is used in the transmitting circuit, it is impossible to perform communication at a data rate higher than the self-resonant frequency of the inductor. A transmitting circuit according to an embodiment of the present invention is a transmitting circuit that drives an inductor to transmit data to a semiconductor chip insulated from a semiconductor chip on which the transmitting circuit is mounted, and includes a driving circuit that receives outgoing data transmitted at a data rate higher than the self-resonant frequency of the inductor and outputs an outgoing signal that drives the inductor at the data rate of the outgoing data.

Abstract: A transmitting circuit that includes a driving circuit that drives an inductor to transmit data to a semiconductor chip insulated from a semiconductor chip on which the transmitting circuit is mounted. The driving circuit receives an outgoing data, compensates wave distortion of the outgoing data generated from the self-resonance of the inductor, generates a compensated outgoing data, and outputs the compensated outgoing data to drive the inductor, such that the outgoing data is transmitted at a data rate higher than the self-resonant frequency of the inductor.

Abstract: An agrochemical composition comprising a propylene glycol fatty acid monoester and fenbutatin oxide in a proportion of 1:150 to 150:1 in terms of a mass ratio (propylene glycol fatty acid monoester:fenbutatin oxide) shows an excellent control effect on pests, hyposensitive mites having reduced sensitivity to chemicals, eggs of mites, and pests other than mites in all stages of growth, even when the composition is applied in a small amount. A pest control method comprising applying the propylene glycol fatty acid monoester and fenbutatin oxide in a proportion of 1:150 to 150:1 in terms of a mass ratio (propylene glycol fatty acid monoester:fenbutatin oxide) to pests or a habitat of the pests also shows an excellent control effect.

Abstract: High data-rate magnetic coupling communication is realized with a small circuit size without sacrificing the communication distance. A received data acquisition circuit performs a decision-feedback equalization process on a received signal to obtain a shaped signal, and also performs sampling of the shaped signal with a sampling rate equal to or higher than a self-resonant frequency, according to a sampling clock, to obtain a data sample. A midpoint sample acquisition circuit performs sampling of the received signal at an intermediate timing of a sampling timing of the received data acquisition circuit to obtain a midpoint sample. A phase adjustment circuit adjusts a phase of the sampling clock, based on the data sample and the midpoint sample.

Abstract: A clock data recovery circuit includes: a demodulation filter that receives a transmission signal transmitted by two orthogonal carrier waves having I and Q phases and executes demodulation to obtain a demodulated wave having an phase and a demodulated wave having a Q phase from the transmission signal; a first determination circuit that determines whether an absolute value of one of the two demodulated waves is greater than an eye opening maximum value at an ideal clock phase of the transmission signal; a second determination circuit that determines whether the one demodulated wave is greater than zero; a third determination circuit that determines whether the other one of the two demodulated waves is greater than zero; and a phase comparison unit that detects whether a phase of a clock signal included in the transmission signal is leading a phase of a data signal included in the transmission signal, based on determination results obtained by the first to third determination circuits.

Abstract: Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result.

Abstract: High data-rate magnetic coupling communication is realized with a small circuit size without sacrificing the communication distance. A received data acquisition circuit performs a decision-feedback equalization process on a received signal to obtain a shaped signal, and also performs sampling of the shaped signal with a sampling rate equal to or higher than a self-resonant frequency, according to a sampling clock, to obtain a data sample. A midpoint sample acquisition circuit performs sampling of the received signal at an intermediate timing of a sampling timing of the received data acquisition circuit to obtain a midpoint sample. A phase adjustment circuit adjusts a phase of the sampling clock, based on the data sample and the midpoint sample.

Abstract: A waveform equalization circuit includes: a decision feedback equalization unit that feeds back and equalizes an input signal; a clock phase adjustment unit that adjusts a clock phase of a signal equalized by the decision feedback equalization unit based on a signal determined with a prescribed potential as a threshold; and a duo-binary decoder that encodes, into a duo-binary signal, the signal determined with the prescribed potential as a threshold based on a clock adjusted by the clock phase adjustment unit from the signal equalized by the decision feedback equalization unit; wherein the equalized signal is generated by adding the duo-binary signal encoded by the duo-binary decoder to the input signal. A first post-tap of the input signal is equalized by the clock phase adjustment unit without feedback equalization by the decision feedback equalization unit. Second and subsequent post-taps of the input signal are fed back and equalized by the decision feedback equalization unit.

Abstract: A clockless transmission system includes display controller 101 and display driver 106. Display controller 101 includes data transmission circuit 102 configured to output general data obtained by multiplexing a clock by coding serialized pixel data for each pixel data during a data communication interval and also to output a predetermined control signal during a blanking interval. Display driver 106 includes clock and data recovery circuit 107 configured to output the pixel data from the general data transferred from the display controller and to increase a loop gain of a feedback loop in clock recovery such that the loop gain is larger than that when the general data is received, according to control data of the control signal, to recover and output a clock, and display driving circuit 109 configured to output a signal for driving a display based on the pixel data and the recovered clock.

Abstract: In a related transmitting circuit employing electromagnetic induction that is used in a communication system, there is a problem in that, because only one inductor is used in the transmitting circuit, it is impossible to perform communication at a data rate higher than the self-resonant frequency of the inductor. A transmitting circuit according to an embodiment of the present invention is a transmitting circuit that drives an inductor to transmit data to a semiconductor chip insulated from a semiconductor chip on which the transmitting circuit is mounted, and includes a driving circuit that receives outgoing data transmitted at a data rate higher than the self-resonant frequency of the inductor and outputs an outgoing signal that drives the inductor at the data rate of the outgoing data.

Abstract: A clock data recovery circuit includes: a demodulation filter that receives a transmission signal transmitted by two orthogonal carrier waves having I and Q phases and executes demodulation to obtain a demodulated wave having an phase and a demodulated wave having a Q phase from the transmission signal; a first determination circuit that determines whether an absolute value of one of the two demodulated waves is greater than an eye opening maximum value at an ideal clock phase of the transmission signal; a second determination circuit that determines whether the one demodulated wave is greater than zero; a third determination circuit that determines whether the other one of the two demodulated waves is greater than zero; and a phase comparison unit that detects whether a phase of a clock signal included in the transmission signal is leading a phase of a data signal included in the transmission signal, based on determination results obtained by the first to third determination circuits.

Abstract: A frequency regeneration circuit according to the present invention compares a width of a single pulse of input data with a time width of a 1/n clock cycle defined by a phase difference of multi-phase clock signals (where n is a natural number) in order to regenerate a frequency that is 1/n of a rate of the input data.

Abstract: A clock regeneration circuit according to an exemplary embodiment of the present invention is characterized in that a phase comparison result of serial data being inputted and a clock signal is shaped with use of the clock signal or another clock signal having a predetermined phase difference from the clock signal, and a phase of the clock signal is controlled with use of the shaped phase comparison result.

Abstract: A common mode of a waveform of a duobinary transmission signal (IN) is set to 0 and the size of a data eye is set to Veye; and reference potentials Vref_H and Vref_L are set to the following values: Veye/?{square root over (3)}?Vref—H?Veye/?{square root over (2)}??(1) ?Veye/?{square root over (2)}?Vref—L??Veye/?{square root over (3)}??(2) More particularly, effect becomes remarkable by setting the reference potentials Vref_H and Vref_L to central values in ranges shown in Equations (1) and (2), respectively. In the central values, fluctuation (jitter) of transition data becomes the smallest, and a jitter characteristic of a reproducing clock becomes the best. Consequently, a clock reproducing apparatus in which a received clock from duobinary transmission data is reproduced with high accuracy is provide.

Abstract: Function distinguishing marks are efficiently displayed which correspond to a plurality of functions assigned to a single operation key, respectively. A mobile phone (1) changes in accordance with the number of functions assigned to a single operation key the number of the function distinguishing marks to be displayed which indicate functions.

Abstract: The invention has as its object the provision of an agrochemical composition for pest control, by which an excellent control effect is achieved on pests, hyposensitive mites having reduced sensitivity to chemicals and eggs of the mites, and other pests of all stages of growth than the mites even when the composition is applied in a small amount, and a pest control method. The agrochemical composition for pest control comprises a propylene glycol fatty acid monoester and fenbutatin oxide in a proportion of 1:150 to 150:1 in terms of a mass ratio (propylene glycol fatty acid monoester:fenbutatin oxide). The pest control method comprises applying the propylene glycol fatty acid monoester and fenbutatin oxide in a proportion of 1:150 to 150:1 in terms of a mass ratio (propylene glycol fatty acid monoester:fenbutatin oxide) to pests or a habitat of the pests.

Abstract: An actuator body and a throttle mechanism that are small and have a simple structure are provided. The actuator body comprises a polymer actuator 11 that bends and deforms by an electric driving source, an intermediate 12 that transmits the bending force of the polymer actuator, and an elastic body 13 to which the bending force is applied through the intermediate, wherein the dimension of a hole portion that is formed in the elastic body 13 changes when the bending force of the polymer actuator 11 is applied onto the elastic body 13 through the intermediate 12.