Abstract: A percent body fat measuring apparatus includes a first and a second electrodes with which a living body is brought into contact, a detection resistor of which one terminal is connected to the second electrode, signal generator which produces a measurement signal and applies a produced measurement signal between the first electrode and the other terminal of the detection resistor, level detector for detecting the level of a signal which develops between the terminals of the detection resistor and is an object of detection, and percent body fat computer for determining percent body fat on the basis of a result of detection operation performed by the level detector. A measurement signal produced by the signal generator is made analogous to a half-wave waveform, and the level detector detects the level of a waveform analogous to a half-wave of the signal to be detected.

Abstract: There is provided a video signal apparatus capable of preventing a vertical wobble of the screen from causing discomfort to users.

Abstract: In a magnetic tape apparatus, a cylinder motor and a capstan motor are provided separately. A family processing is realized by fabricating a stator core of the capstan motor by using the same die which is used for fabricating a stator core of the cylinder motor. Each of attachment pieces is fitted into the corresponding one of recess portions provided at a flange-shaped attachment portion of a bearing holder and the inner end of the attachment piece is engaged with a rib provided at the flange-shaped attachment portion. The inner end portion of the attachment piece is screwed with the flange-shaped attachment portion.

Abstract: In a cold-cathode dimmer, a current detector includes a LPF for removing the frequency component of a lighting/driving signal for a lighting driver from the output of a diode for rectifying the voltage across a current detecting resistor and passing the frequency component of an intermittent control signal for controlling the duty ratio of the lighting/driving signal.

Abstract: A brush motor has a magnetic sensor provided for detecting a change in a field magnet occurring in correspondence with a change in a rotational position of a rotor core.

Abstract: In a configuration where a circuit board is divided into a digital circuit board and a power supply circuit board arranged at respective sides of an optical disk loader, the level of unwanted emission is reduced significantly by modifying the division of grounding patterns of the digital circuit board, and arranging a filter on the digital circuit board adjacent to connectors. Accordingly, a metal case is dispensable, and a resin case can be employed. Therefore, the cost of a DVD apparatus can be reduced.

Abstract: In a cold-cathode dimmer, a current detector includes a LPF for removing the frequency component of a lighting/driving signal for a lighting driver from the output of a diode for rectifying the voltage across a current detecting resistor and passing the frequency component of an intermittent control signal for controlling the duty ratio of the lighting/driving signal.

Abstract: A brush motor has a magnetic sensor provided for detecting a change in a field magnet occurring in correspondence with a change in a rotational position of a rotor core.

Abstract: A measurement signal generated by signal generator 3 is made analogous to a half-wave waveform, and level detector 4 detects the level of a waveform analogous to a half-wave of a signal to be detected.

Abstract: In a magnetic tape recording apparatus for recording an FM luminance signal and a low frequency converted chrominance onto tracks of a magnetic tape, both of a frequency of the FM luminance signal and a spectrum distribution of the low frequency converted chrominance are shifted by fH/2 between two of the tracks corresponding to the first field and the second field of one frame of a recorded image when a horizontal scanning frequency is presumed as fH. The frequency of the FM luminance signal is shifted by fw/4 between two of the tracks corresponding to the second field of one frame and the first field of the subsequent frame.

Abstract: A magnetic recording device provided with a frequency modulation circuit, a filter circuit, and a frequency conversion circuit. The frequency modulation circuit generates a modified FM luminance signal the frequency of a carrier wave of which is higher than that of an FM luminance signal and the relationship between the frequency of a sink chip and the frequency of a white peak of which is equal to the relationship between the frequency fs and the frequency fw of the FM luminance signal when the minimum frequency of the frequency band of the FM luminance signal is the frequency fa. The filter circuit removes a signal component lower than a cut-off frequency of signal components included in the modified FM luminance signal when a frequency. lower than the minimum frequency of the band of the modified FM luminance signal by a frequency acquired by doubling the frequency fa is the cut-off frequency.

Abstract: A magnetic tape drive has a brake mechanism section which can transfer the state of a reel table from a non-brake state to a brake state by using an electric power that remains after a start of a power failure of a commercial power source. The drive further has a first power failure detecting section which, when a power failure of the commercial power source is detected, transmits a first power failure detection signal; and a controlling section which, when the first power failure detection signal is transmitted in a fast-forwarding state or a rewinding state, transfers the non-brake state of the brake mechanism section to the brake state.

Abstract: A tape end detector includes a first resistor connected between a positive power source and an analog input terminal, a second resistor connected between the analog input terminal and the ground, a first phototransistor the collector of which is connected to an output terminal and the emitter of which is connected to the analog input terminal, and a second phototransistor the collector of which is connected to the analog input terminal and the emitter of which is connected to the output terminal. In the tape end detector, it is determined based upon voltage applied to the analog input terminal when the output terminal is at a high level whether the first phototransistor is turned on or off and it is determined based upon voltage applied to the analog input terminal when the output terminal is at a low level whether the second phototransistor is turned on or off.

Abstract: In a magnetic tape apparatus, a cylinder motor and a capstan motor are provided separately. A family processing is realized by fabricating a stator core of the capstan motor by using the same die which is used for fabricating a stator core of the cylinder motor. Each of attachment pieces is fitted into the corresponding one of recess portions provided at a flange-shaped attachment portion of a bearing holder and the inner end of the attachment piece is engaged with a rib provided at the flange-shaped attachment portion. The inner end portion of the attachment piece is screwed with the flange-shaped attachment portion.

Abstract: In a configuration which is provided with a voltage control circuit 2 for supplying a DC voltage control signal created on the basis of the voltage detecting signal 44 to an terminal of an auxiliary coil L3, wherein the voltage control circuit 2 controls the oscillating amplitude of a transistor Q1 for oscillation using the voltage control signal to stabilize the voltage of the secondary output, and the secondary output is led to a high voltage applying portion of a toner system printing section, a detecting signal creating circuit 5 rectifies the output from the voltage detecting coil L4 at the same timing as the rectifying/smoothing circuit rectifies the output from the secondary coil L2.

Abstract: In a structure including a voltage control circuit 1 for changing a voltage control signal 14 to control an oscillation amplitude of a transistor Q1 for oscillation, thereby stabilizing a voltage of a secondary output 13, there are provided a load suppressing circuit 5 for restricting a lower limit of a load impedance of a secondary coil L2 to prevent the oscillation of the transistor Q1 for oscillation from being stopped when the secondary output 13 is short-circuited, and an intermittent control circuit 2 for repeating an operation for reducing a voltage of the voltage control signal 14 to stop the oscillation when detecting a short circuit of a load and for raising the voltage of the voltage control signal 14 to restart the oscillation after stopping the oscillation.

Abstract: A memory capacity of a memory circuit has a program data system which practices a software function and has a fixed amount corresponding to each of a series of upper rank functions to lower rank functions of the software. This program data system selects one function (of preparing kind functions) from a series of integrated ranks and incorporates those of each memory circuit corresponding to the preparing kind functions.

Abstract: A video signal processor which includes a reference signal generating circuit provided with at least an oscillation circuit for generating a reference signal corresponding to a burst signal and a Y/C separation circuit for separating a video signal into a luminance signal and a chrominance signal with an output of the reference signal generating circuit as a clock signal, and uses a microcomputer for controlling the entire operation of the video signal processor. In the video signal processor, an output of the reference signal generating circuit is also supplied to the microcomputer as a clock signal.

Abstract: In a video tape reproducing apparatus, there is provided an integrated circuit in which an audio signal amplifier for amplifying an audio signal reproduced by a fixed type audio head, and a control signal amplifier for amplifying a control signal reproduced by a fixed type control head are integrated with each other.

Abstract: In a configuration which is provided with a voltage control circuit 2 for supplying a DC voltage control signal created on the basis of the voltage detecting signal 44 to an terminal of an auxiliary coil L3, wherein the voltage control circuit 2 controls the oscillating amplitude of a transistor Q1 for oscillation using the voltage control signal to stabilize the voltage of the secondary output, and the secondary output is led to a high voltage applying portion of a toner system printing section, a detecting signal creating circuit 5 rectifies the output from the voltage detecting coil L4 at the same timing as the rectifying/smoothing circuit rectifies the output from the secondary coil L2.