Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
  • H04R9/02—Details
  • H04R9/04—Construction, mounting, or centering of coil
  • H04R9/046—Construction
  • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
  • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R1/00—Details of transducers, loudspeakers or microphones
  • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R1/00—Details of transducers, loudspeakers or microphones
  • H04R1/08—Mouthpieces; Microphones; Attachments therefor
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R1/00—Details of transducers, loudspeakers or microphones
  • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
  • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
  • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
  • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
  • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
  • H04R31/006—Interconnection of transducer parts
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
  • H04R9/02—Details
  • H04R9/025—Magnetic circuit
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R1/00—Details of transducers, loudspeakers or microphones
  • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
  • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
  • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
  • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
  • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
  • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
  • H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
  • H04R9/08—Microphones
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49005—Acoustic transducer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/4902—Electromagnet, transformer or inductor
  • Y10T29/4908—Acoustic transducer

Definitions

• This invention relates to acoustic transducers and more particularly to ribbon
• Microphones generally use transducers that are configured either as the
• Microphones that are suitable for use on sound stages and in other film and television production settings must be sensitive, robust, and reliable, but not
• musical instrument or an amplified speaker may be of high enough intensity to damage or distort the delicate internal ribbon used in the current art. It would be
• the invention thus comprises a ribbonned microphone assembly, having
• adjustable sound receiving capabilities including: a transducer having a
• the flux frame may have
• the flux frame may have tapered sides.
• the flux frame preferably
• the side apertures may be non-circular.
• apertures may be elongated and curvilinear.
• the invention also includes a method of manufacturing a ribbon for a ribbon
• the method may include as steps:
• the ribbon may have its temperature controlled.
• the ribbon may be comprised of more than
• the form may be comprised of a vapor deposition supportable
• the invention also includes a method of tuning a ribbon for subsequent
• utilization of said ribbon in a ribbon microphone comprising one or more of the following steps: arranging a calibration member for adjustable supporting and
• the calibration member the ribbon having a predetermined pattern formed
• the ribbon which indicates a resonant peak.
• the ribbon may be installed into a
• the invention also includes a method for reducing sound propagation from a
• microphone support comprising one or more of the following steps: arranging a
• the spacer members are preferably of annular shape.
• the invention also includes a case for the safe enclosure and un-pressurized
• an enclosure housing comprising: an openable door on the case; a spring loaded valve connected to the door which valve opens the case to the outside ambient
• the casing enclosing a ribbon therewithin, the casing comprising: a
• the apertures being comprised of curved, non-cylindrical
• the apertures are preferably arranged so as to be curved away
• the invention also included a modular ribbon microphone assembly
• Each of the sub-assemblies may have a bus bar with interconnecting
• the invention also includes a ribbon transducer for the detection of energy
• the ribbon transducer comprising: an elongate ribbon structure comprised
• the ribbon structure of carbon nanotube filaments comprises a ribbon element of a ribbon microphone.
• ribbon element comprising: an elongated layer of carbon filaments; and an
• the invention also comprises: a ribbon transducer for the detection of sound
• the ribbon transducer comprising an elongated ribbon structure comprised
• ribbon microphone having a movable ribbon element comprised of a carbon
• ribbon element comprised of a carbon fiber material integrated therein, said ribbon
• the invention also comprises a composite membrane acoustic transducer
• the first layer may be comprised of a carbon fiber.
• the layer may be a polymeric material.
• the carbon fiber may be comprised of carbon
• the first layer is preferably electrically conductive.
• the conductive layer is preferably a deposited metal.
• the second conductive layer may be a deposited metal.
• the second conductive layer may be an electrodeposited
• the invention also comprises a method of manufacturing a membrane
• transducer element comprising one or more of the following steps of: providing a
• the predetermined pattern may be a periodic pattern.
• the predetermined pattern may be a periodic pattern.
• the invention also comprises a method of manufacturing a ribbon type
• acoustic element to a specific frequency comprising: one or more of the following
• the acoustic element may be a metal element.
• acoustic element preferably comprises a transducer assembly.
• Figure 1 represents a prior art ribbon microphone transducer showing a
• corrugated ribbon suspended between ferrous poles extending from an
• Figure 2 represents a prior art ribbon microphone transducer showing its
• corrugated ribbon suspended between tapered, ferrous pole pieces extending from
• Figure 3 is a side elevational view of the present invention showing a
• Figure 4 is a cutaway view of the microphone casing shown in figure 3;
• Figure 5 is an enlarged sectional view of the casing of the present Invention
• Figure 6 is an exploded, sectional view from the side of a modular ribbon
• Figure 7 represents a side elevational view of an assembled stack of
• Figure 8 is a side elevational view of a tapered transducer featuring a
• surrounding flux frame that positions two or more adjacent magnets in proximity
• Figure 9 is a perspective view of a non-tapered (parallel sided-walls)
• transducer of the present invention showing installed return rings
• Figure 9 A is a view taken along the lines 9A-9A of figure 9;
• Figure 10 is a side elevational view of a flux frame of the preset invention
• Figure 11a is a cross-sectional view of a ribbon form of the present
• Figure l ib is a cross-sectional view of a ribbon form shown in figure 11a
• metal such as for example, aluminum
• Figure 1 Ic is a side elevational view of the completed ribbon after removal
• Figure 1 Id is a cross-sectional view of a completed ribbon produced by the
• Figure l ie shows a side efevationa ⁇ view of a graduated fixture having a
• Figure Hf is a schematic representation of a tuning system to be used with
• Figure 12a is a plan view of a series of filaments suspended between a pair
• Figure 12b is a side elevational view of the series of ribbon filaments shown
• Figure 12c is a side elevational view of the series of filaments in spaced
• Figure 12d is a side view of the series of filaments after being impressed
• Figure 13a is a plan view of a ribbon assembly with a sound absorbing
• Figure 13 b is a detailed side elevational view of the sound absorbing wedge
• Figure 14 is a side elevational view, in section, of a microphone assembly
• Figure 15a shows an electrical schematic diagram of a pair of identical
• Figure 15b shows a plan view of the pair of identical ribbons in proximity to
• Figure 15c is a perspective view of a practical holder for a pair of adjacent
• Figure 16a shows a perspective view of a storage and travel case for a
• Figure 16b is a cross sectional view of an air escape valve utilizable in the
• Figure 17 is a side elevational view, in cross section, of a sound absorbing
• electromagnet 26 establishes the magnetic field, which is carried through the pole
• ribbon 22 is vibrated by incoming sound waves, an electrical current is generated
• the tapered pole pieces 34 extending from a permanent magnet 36.
• the tapered pole pieces 34 reduce the
• the ribbon is suspended in an adjustable trains
• FIG 3 wherein a microphone casing 40 is shown having a suspension system 41 consisting of a zig-zag arrangement of elastomeric cords or cables 42, a tapered
• the cutaway view of figure 4 shows the microphone
• aperture 48 having an axially curved, non-cylindrical, non-linear shape.
• linear profiles as shown in Figure 5 may allow ordinary vibratory sound waves to
• Figure 6 displays an exploded representation of a modular ribbon
• microphone assembly 50 comprised of a top ribbon transducer 52, an intermediate
• control section 56 thus allowing different varieties of ribbon microphone systems io oe uspr-c ⁇ migure ⁇ .
• appelct interconnecting pins 58 extending from bus bars 57
• sonic and electronic attributes such as gain, frequency response, timbre,
• bus bars 57 are utilized connect the motor to transformer unit, and transformer unit
• interconnects afford a greater degree of control of hum pickup from external fields
• silver bars or copper plated with silver provides low resistance and low noise.
• transducer 60 One preferred embodiment of a transducer 60 is shown in figure 8. It is a
• tapered transducer 60 featuring a surrounding flux frame 61 that positions two or
• the flux frame 61 is equipped with ring-receiving apertures 68 near the
• curved return rings (shown for example, as members 72
• the return rings 72 are
• Figures 9 and 9a show a non-tapered, generally parallel-walled transducer 70
• a further transducer embodiment is shown in Figure 10 with a flux frame
• side apertures 80 is known to improve high frequency response in
• Figure 11a represents a cross section view of a ribbon form 90 having a
• the form 90 may be made from
• Figure l ib represents a cross
• aluminum thickness may generally be from about 1 A micron to up to about 4
• More than one layer may be deposited on the surface 92 of
• the layers may be of the same materials or of different materials
• gold may be deposited, followed by a second layer of thicker aluminum and then a
• the gold layers may be very thin,
• Hie aluminum layer may be from
• too-thin materials such as
• Figure 1 Ic represents, for example, an edge view of a completed ribbon 100
• Figure 1 Id represents an edge view of a completed ribbon 102 produced
• pattern may be periodic, aperiodic, or graduated so that smaller, shorter waves
• portions or undulations 104 are placed near the ends of the ribbon 102, and the
• Figure l ie shows an example of a graduated fixture 110 having a scale 112
• a variable frequency oscillator 122 may
• the oscillator 122 is
• the ribbon 118 may be precisely tensioned
• the ribbon 118 may then be connected
• a load such as a transformer, and subsequent amplifier, during the tuning
• FIG. 12a is a plan view of a series of filaments or
• the fibers 130 suspended between a set of fiber holders 132.
• the fibers 130 may be made of a high tensile strength polymeric material such as Kevlar which does not
• the fibers 130 may also be comprised of a carbon nanotube
• such a carbon nanotube ribbon may be conductive or super-conductive.
• Figure 12b is a side view of the series of filaments 130 shown in figure 12a.
• Figure 12c shows a side view of the series of filaments in proximity to a pair of
• patterned forms 134 which may apply pressure, heat, or both.
• 12d is a side view of the series of filaments 130 after being impressed with the
• the series of filaments 130 may be further coated, plated
• a deposition process such as a vapor deposition process
• the deposited material may be aluminum or other conductive
• Such alloys are generally stiff and hard to form into
• wire yet may be suitably formed in a practical manner by the method described.
• Superconducting alloys may have sufficient tensile strength to be used alone in this
• Carbon nanotubes or carbon fibers, or ribbons may have sufficient length and length.
• FIG. 13 a there is shown is a top view of a ribbon assembly 140 with a
• the sound absorbing wedge 142 is effective to absorb
• the wedge 142 absorbs reradiated sound produced by the moving ribbon.
• the shape of the wedge 142 reduces specular reflection back to the ribbon, which
• wedges may be used. The wedges may be enclosed to
• the heterogeneous structure is comprised of filaments,
• Figure 14 is an example, in a cross section view, of a microphone assembly-
• An acoustic labyrinth 152 may be produced
• rolled or coiled tubing 153 such as plastic tubing, Tygon TM, or other
• the formable tubular materials may be any suitable material.
• the formable tubular materials may be any suitable material.
• Back chamber (as described partially in figure 13a) may be connected to the
• acoustic labyrinth which may be positioned at or below the transducer assembly
• 153 may be filled with a lossy, sound absorbing material such as injected, open cell
• foam of urethane or filled with a loose, sound absorbing fibrous material such as
• the length of the tube is generally about 30" as described in
• One end of the tube may be attached to the chamber of figure 13a so
• Figure 15a discloses an electrical schematic diagram of a pair of identical
• Figure 15b is a top view of the pair of identical ribbons 160
• Figure 15c shows a perspective view of a practical holder 166 for the adjacent
• the holder 1(J6 controls the amount of air or
• ribbons (i.e. 160 and.162) allows variable patterns to be produced using ribbon
• a storage and travel case 170 is shown in figure 16a, for a pressure sensitive
• Prior art boxes generally have a lid which may be closed or opened suddenly. Such sudden unprotected operation as
• the opening or closing of the case may produce undesired pressures that may
• An air valve 174 is connected to latch (or hinge) so that there
• 16b shows a cross section view of an air escape valve 174.
• plunger 176 may be incorporated into the latch to release air through discharge
• valve 174 openings 177 prior to opening.
• the area of the valve 174 is large relative to the
• An exemplary microphone support 180 is shown in Figure 17 in a cross
• a plurality of annular rings 184 are preferably interposed with
• acoustically lossy materials 186 such as filled low durometer urethanes.
• a clamp 190 may be

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Signal Processing (AREA)
• Manufacturing & Machinery (AREA)
• Health & Medical Sciences (AREA)
• Otolaryngology (AREA)
• Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
• Diaphragms For Electromechanical Transducers (AREA)
• Laminated Bodies (AREA)
• Details Of Audible-Bandwidth Transducers (AREA)
• Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

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ID=36228203

Family Applications (1)

Country Status (5)

Cited By (8)

Families Citing this family (18)

Citations (4)

Family Cites Families (73)

• 2005
  • 2005-10-03 EP EP05808347.8A patent/EP1813132B1/en not_active Expired - Lifetime
  • 2005-10-03 US US11/242,612 patent/US7900337B2/en active Active
  • 2005-10-03 US US11/242,611 patent/US7894619B2/en active Active
  • 2005-10-03 CN CNA2005800435322A patent/CN101080944A/zh active Pending
  • 2005-10-03 JP JP2007537907A patent/JP5094404B2/ja not_active Expired - Fee Related
  • 2005-10-03 WO PCT/US2005/035702 patent/WO2006047048A2/en not_active Ceased
• 2007
  • 2007-03-16 US US11/725,137 patent/US8218795B2/en active Active
• 2011
  • 2011-03-08 US US13/042,872 patent/US20110158460A1/en not_active Abandoned
  • 2011-09-07 JP JP2011194874A patent/JP5417396B2/ja not_active Expired - Fee Related

Patent Citations (4)

Non-Patent Citations (1)

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