Document |
Document Title |
JPH0761198B2 |
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JPH0761193B2 |
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JPH0718238Y2 |
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JPH0720317B2 |
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JPH0693800B2 |
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JPH0681200U |
[Purpose] The moving coil type electromagnetic drive unit 3 is arranged in parallel with the diaphragm 6, and the noise caused by the resonance of the arm caused by connecting the vibration with the arm of the woofer speaker connected by...
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JPH06288849A |
PURPOSE: To provide a vibration generator and a fail-safe pressure sensor which can generate a highly energetic output with the aid of the vibration generator when a pressure is lower than as specified. CONSTITUTION: An electromagnet 7 w...
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JPH0667037B2 |
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JPH0625111Y2 |
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JPH0585188U |
[Purpose] The 6 parts of the exciting coil and the 7 parts of the magnet can be separated, and vibration can be generated without using a leaf spring. [Constitution] The sensory vibration pad device according to the present invention has...
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JPH05260595A |
PURPOSE: To provide an armature converter which is very small-sized and has the copper loss suppressed. CONSTITUTION: An armature converter 62 is provided with permanent magnet means 26 and 28 which form a bias area mainly in a range bet...
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JPH0560318B2 |
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JPH05220155A |
PURPOSE: To extend the life of a pressure pulse generating device with a method simple and advantageous in cost. CONSTITUTION: This device has a diaphragm 2 having at least one conductive area 2b, one side of which is opposed to an acous...
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JPH0533119Y2 |
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JPH0591592A |
PURPOSE: To provide a sound reproduction system which shows flat frequency response characteristics in an operating frequency range and operates with extremely high efficiency. CONSTITUTION: A transducer which contains a core 11 formed o...
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JPH056811B2 |
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JPH055240B2 |
A stereo phonograph pick-up head or cutter has a slim elongated construction utilizing an elongated mount having connector pins at its rear end. Two elongated pole pieces fit into the mount, each having a socket at its rear end. Each coi...
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JPH053960B2 |
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JPH051198Y2 |
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JPH0448320B2 |
An electromagnetic transducer utilizes flat permanently magnetized plates made of magnetically hard ceramic materials having thicknesses substantially less than the dimensions across the faces thereof. Electric signals may be applied thr...
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JPH0446498A |
PURPOSE: To enable thin structure and to reduce the number of parts by magnetizing magnets connected to each diaphragm respectively provided on one side and on the other side to the same polarity. CONSTITUTION: A frame 1 is formed by con...
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JPH0356520B2 |
An audio frequency electromechanical vibrator comprising a flat plate permanent magnet magnetized in a predetermined direction and a coil wound around the permanent magnet for crossing the direction of magnetization. The permanent magnet...
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JPH03184500A |
PURPOSE: To more effectively suppress an external electromagnetic field by forming a magnetic shield by two halves of cup-like casing adjacent to the symmetrical face of the shield, connected as one unit along a connection face parallel ...
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JPH0336160Y2 |
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JPH0373099U |
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JPH02274200A |
PURPOSE: To provide a simple acoustic transducer at a low cost by providing a membrane moved by a flexible means over an entire range of a housing base and fixing the flexible means to an inner side of four side walls of a housing sectio...
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JPH02106793U |
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JPH01307399A |
PURPOSE: To obtain high acoustic effect by using a fine wire consisting of copper at ≥6N for the copper coil of a coil part for a cartridge. CONSTITUTION: The coil part of the cartridge for a record player is obtained, for example, by ...
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JPH0136760B2 |
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JPH0186397U |
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JPH0182599U |
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JPS646632Y2 |
The present invention is directed to a pickup cartridge used for reproducing an information recorded on a record disc, the pickup cartridge having a magnet, a stylus which engages a spiral groove on the record disc, a pole piece for form...
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JPS63187498U |
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JPS6347320B2 |
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JPS63181599A |
PURPOSE: To obtain a compact and highly efficient moving magnet type transducer by winding a coil on a magnetic core having a magnetic void and connecting a diaphragm to a movable magnet having magnetic pole parts which are mutually reve...
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JPS63111098U |
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JPS6326600B2 |
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JPS6318240Y2 |
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JPS6322376B2 |
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JPS633278Y2 |
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JPS632196B2 |
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JPS6255359B2 |
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JPS6255358B2 |
A pickup cartridge comprises a magnetic circuit having an air gap, a coil wound on the magnetic circuit and a cantilever having a permanent magnet inserted in to the air gap. In this case, the magnetic circuit comprises a delta-shaped jo...
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JPS6253000B2 |
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JPS6247318B2 |
A sound producing device for watches comprising an electromagnetic exciting means having a coil and a permanent magnet, and first and second vibration plates disposed on opposite sides of the electromagnetic exciting means. The natural f...
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JPS62198300A |
PURPOSE: To convert a low frequency signal of a large amplitude by reducing a distortion, by providing a cylindrical bobbin, a coil wound to the cylindrical bobbin, a ring magnet, a shaft fixed to the axial center of the ring magnet, res...
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JPS6233436Y2 |
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JPS62173601A |
PURPOSE: To make noiseless reproducing possible by coating surfaces of a stylus tip and a cantilever with a conductive material and using a conductive adhesive. CONSTITUTION: Surfaces of a stylus tip 2 and a cantilever 1 are coated with ...
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JPS62163498A |
PURPOSE: To obtain a transducer which is flat and small in size by providing a magnetic material for operating an electromagnetic force on a magnet, on a virtual plane being in an equal distance from two magnetic pole surface of the magn...
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JPS6220883Y2 |
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