Abstract:
A bistable multivibrator circuit, which is readily adaptable to monolithic integrated circuit technology, combines master and slave portions, thus reducing the components needed to provide a master/slave circuit operation when the multivibrator is used as a frequency divider.
Abstract:
An antenna system is disclosed which has a loop antenna divided into n conductive members at n pairs of divisional points where n is a positive integer not smaller than 2, n feeders connected to the n pairs of divisional points respectively, a signal feeding point, and at least one impedance element. In this case, electrical switching circuits are connected between the n feeders and the impedance element, and an electrical control circuit is connected to the electrical switching circuits for selectively connecting the feeding point to one of the n feeders and at the same time for selectively connecting the impedance element to another of the n feeders, so that the directivity characteristic of the antenna system is variable controlled.
Abstract:
MAGNETIC RECORDING AND/OR REPRODUCING APPARATUS In recording periodic information signals having first intervals and second intervals which are subdivisions of the first intervals, for example, the chrominance components of color video signals having field and line intervals, and which are recorded in respective areas or increments of successive parallel tracks on a record medium; interference due to crosstalk between signals recorded in next adjacent tracks is substantially reduced or eliminated by recording the information signals in such next adjacent tracks with first and second carriers, respectively, which have their phases changed in opposite directions by 2.pi./N and 2.pi.M, respectively, for successive second intervals, with each of N and M being a whole number greater than 2 which is negative to indicate a phase change or shift in the clockwise direction or positive to indicate a phase change in the counterclockwise direction, and with each of N and M being selected to satisfy the equation 1/N-1/M=1/2.
Abstract:
In recording periodic information signals having first intervals and second intervals which are subdivisions of the first intervals, for example, the chrominance components of color video signals having field and line intervals, and which are recorded in respective areas or increments of successive parallel tracks on a record medium; interference due to crosstalk between signals recorded in next adjacent tracks is substantially reduced or eliminated by recording the information signals in such next adjacent tracks with first and second carriers, respectively, which have their phases changed in opposite directions by 2 pi /N and 2 pi /M, respectively, for successive second intervals, with each of N and M being a whole number greater than 2 which is negative to indicate a phase change or shift in the clockwise direction or positive to indicate a phase change in the counterclockwise direction, and with each of N and M being selected to satisfy the equation 1/N-1/M=1/2.
Abstract:
A micromachine for use in a high-frequency filter having a high Q value and a higher frequency band. A micromachine (20) characterized by comprising an output electrode (7) provided on a substrate (1), an interlayer insulation film consisting of a first insulation film (9) and a second insulation film (11) provided on the substrate so as to cover the output electrode (7), a hole pattern (11a) provided in the second insulation film (11) so as to reach the output electrode (7), and a band-form vibrator electrode (15) provided on the second insulation film (11) so as to cross the upper part of the hole pattern with the interior of the hole pattern (11a) formed as a hollow (A).
Abstract:
A micromachine (20) for a high frequency filter having a high Q value and a high frequency band, comprising an input electrode (7b), an output electrode (7a), and a support electrode (7c) installed on a substrate (4), and a band-shaped vibrator electrode (15) formed by laying a beam (vibration part)(16) on the upper part of the output electrode (7a) through a clearance part (A) in the state of supporting both end parts thereof on the input electrode (7b) and the substrate (4) through the support electrode (7c), wherein the both end parts of the vibrator electrode (15) are completely fixed to the input electrode (7b) and the support electrode (7c) on the entire surface thereof ranging from the tip to the beam (16) thereof.
Abstract:
A micromachine for a high frequency filter having a high Q factor and a frequency band which is high. A micromachine (1) comprising an output electrode (7) disposed on a board(5), an interlayer insulation film (9) covering the board (5) and having a hole pattern (9a) with an output electrode (7) used as a bottom, and a band-like vibrator electrode (11) disposed on the interlayer insulation film (9) in such a manner that, with the interior of the hole pattern (9a) used as a space (A), it crosses the upper region thereof, the micromachine being characterized in that the vibrator electrode (11) is formed as a recess on the hole pattern (9a) side along the side wall of hole pattern (9a).
Abstract:
An antenna system is disclosed which has a loop antenna divided into n conductive members at n pairs of divisional points where n is a positive integer not smaller than 2, n feeders connected to the n pairs of divisional points respectively, a signal feeding point, and at least one impedance element. In this case, electrical switching circuits are connected between the n feeders and the impedance element, and an electrical control circuit is connected to the electrical switching circuits for selectively connecting the feeding point to one of the n feeders and at the same time for selectively connecting the impedance element to another of the n feeders, so that the directivity characteristic of the antenna system is variable controlled.
Abstract:
A separate emitter follower type bias circuit is connected to each base electrode of a transistorized differential amplifier which handles unbalanced input signals. A series circuit of resistors is employed for supplying a suitable bias voltage common to both emitter follower type bias circuits.