Richard T Perrotta

8571250, Oct 29, 2013

Dec 21, 2011

13/332779

David Royer - Fullertong CA, US
Richard Perrotta - Burbank CA, US
Mike Silver - Burbank CA, US

Royer Labs - Burbank CA

H04R 21/02

381368, 381361, 381362

A device for isolating a microphone from vibrations, the device comprising a frame comprising a plurality of surfaces, the plurality of surfaces laying on a plane that is different from each other and defining at least one mounting point; at least one non-resonant cord attached to the mounting point of the frame, the non-resonant cord adapted to support a microphone and absorb vibration; and a biasing device connected to the non-resonant cord, the biasing device adapted to provide tension to the non-resonant cord.

20060078135, Apr 13, 2006

Oct 8, 2004

10/961600

David Royer - Fullerton CA, US
Richard Perrotta - Burbank CA, US

H04R 25/00

381176000, 381399000

Provided is a ribbon-microphone transducer that uses an angled-magnet structure and/or a gap (e.g., near the center of the ribbon) in the magnetic structure in order to provide improved sensitivity and frequency response.

20060078152, Apr 13, 2006

Oct 8, 2004

10/961855

David Royer - Fullerton CA, US
Richard Perrotta - Burbank CA, US

H04R 1/02
H01F 27/28
H04R 9/06

381399000, 381386000, 381396000, 381176000

Provided is a ribbon-microphone circuit that includes a ribbon transducer and a specially designed transformer. In various possible configurations, the transformer: is a toroidal transformer, has multiple interleaved primary windings, has exactly four primary coils, is a tape-wound-core transformer, has a turns ratio of the composite secondary coil to the composite primary coil of at least 100:1, includes at least three interleaved secondary coils, includes at least three interleaved primary coils, and/or has multiple primary and secondary windings that are interleaved with each other. A buffer circuit also may be enclosed within the outer casing.

6434252, Aug 13, 2002

Sep 20, 1999

09/399227

David E. Royer - Fullerton CA
Richard T. Perrotta - Burbank CA

Royer Labs - Burbank CA

H04R 2500

381399, 381431, 381176

A ribbon microphone having magnets positioned adjacent north and south pole pieces. The magnets are of uniform thickness along their lengths, and do not taper. The pole pieces are substantially the same width as the magnets. An offset ribbon is disposed in an air gap between the pole pieces. The offset ribbon is not centered in the air gap, but rather is offset from a center line which bisects the magnets and pole pieces. The offset ribbon is located closer to the front of the microphone than the back of the microphone. The flux area is uniform and corresponds to the area of the air gap between the pole pieces.