Abstract: A device installation apparatus for a mobile body is disposed in a position sandwiched between a driver's seat 107a and a assistant driver's seat 197b in an automobile vehicle 100, and is constituted by a center console box 109, as an installing means, movable along a rail portion 110, in which a desired device such as a CD player 201, a cassette tape player 202, a DVD player 203 or the like can be installed. Having been constituted as above, it allows passengers seated other than in front seats an easy access to the desired device 200, remarkably improving the convenience of the apparatus.

Abstract: A steering system for mobile unit has a steering section 200 for steering a mobile unit having an operation section 210 on a part thereof, and a control section 240 for enabling the mobile unit to be steered, when the steering section 200 is set at a first installed position, and enabling the operation section 210 to make an operation on the device, when the steering section 200 is set at a second installed position.

Abstract: The present invention provides a Dracula clip type of microphone holder, which enables further increase in the safe mounting during sticking or drawing of the pins on clothes of its wearer. The improved microphone holder comprises at least one microphone, a holder base member having front and back faces, a holder device slidably mounted on the front face of the holder base member for holding the microphone, and a hook pin having pin(s) on the side of the back face of the holder base member, the hook pin being rotatably supported at the approximate proximal end of the holder base member, in the direction of crossing the front or back face of the holder base member, such that the pins are extended from or retracted to the back face of the holder base member through slid movement of the holder device on the front face of the holder base member.

Abstract: A central console unit is disposed in a position between a driver's seat and a front-passenger's seat in a motor vehicle as a mobile body and disposes desired devices such as a CD player, a cassette tape player, a DVD player, or the like, is arranged to allow the central console unit to be positioned along a rail to a predetermined position corresponding to each of the seats in the motor vehicle.

Abstract: A central console unit as disposing means which is disposed in a position between a driver's seat and a front-passenger's seat in a motor vehicle as a mobile body and disposes desired devices such as a CD player, a cassette tape player, a DVD player, or the like, is arranged to allow the disposing means to be positioned along a rail to a predetermined position corresponding to each of the seats in the motor vehicle.

Abstract: The present invention provides a Dracula clip type of microphone holder, which enables further increase in the safe mounting during sticking or drawing of the pins on clothes of its wearer. The improved microphone holder comprises at least one microphone, a holder base member having front and back faces, a holder device slidably mounted on the front face of the holder base member for holding the microphone, and a hook pin having pin(s) on the side of the back face of the holder base member, the hook pin being rotatably supported at the approximate proximal end of the holder base member, in the direction of crossing the front or back face of the holder base member, such that the pins are extended from or retracted to the back face of the holder base member through slid movement of the holder device on the front face of the holder base member.

Abstract: A steering system for mobile unit has a steering section 200 for steering a mobile unit having an operation section 210 on a part thereof, and a control section 240 for enabling the mobile unit to be steered, when the steering section 200 is set at a first installed position, and enabling the operation section 210 to make an operation on the device, when the steering section 200 is set at a second installed position.

Abstract: An amplifying circuit for use with a transducer includes a pair of field-effect transistors which are of different conductive types from each other and each of which has gate, drain and source electrodes. The gate electrodes of the field-effect transistors are connected to each other and are further connected to an output terminal of an electrostatic type mechanical-electrical transducer, while the source electrodes of the field-effect transistors are connected to each other and are further connected to an output circuit. One of the drain electrodes is connected to a voltage source and the other drain electrode is connected to the circuit ground. High input impedance is maintained by using no gate resistor at the input, and using a current-sourced source-follower secondstage. Source resistors improve linear performance.

Abstract: A first power supply and output circuit and a second power supply and output circuit for use with a microphone unit having an electrostatic transducer and pre-amplifier transistor is disclosed. DC power to the microphone unit is supplied from the first circuit through a single core cable. An output signal from the microphone unit also passes through the cable to an output transformer in the first circuit. The first circuit has a first battery and the second circuit a DC power source which, when connected to the first circuit, stops drain on the first battery.