Patents by Inventor Ronald D. Borthwick

Ronald D. Borthwick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5668884
    Abstract: A audio enhancement system and method of use with a sound system for producing primary sound from at least one main loudspeaker located at a main position. The audio enhancement system comprises at least one wireless transmitter, time delay circuitry, and plural augmented sound producing subsystems. Each sound subsystem is a portable unit arranged to be carried by a person located remote from the main loudspeaker and includes a wireless receiver and an associated transduce device, e.g., a pair of stereo headphones. The transmitter broadcasts an electrical signal which is representative of the electrical input signal provided to the main loudspeaker. The broadcast signal is receiver by the receiver and is demodulated and amplified to drive the transducer so that it produces augmented sound substantially in synchronism with the sound arriving from the main loudspeaker.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: September 16, 1997
    Assignee: Clair Bros. Audio Enterprises, Inc.
    Inventors: Roy Barry Clair, Jr., Ronald D. Borthwick
  • Patent number: 5432858
    Abstract: A audio enhancement system and method of use with a sound system for producing primary sound from at least one main loudspeaker located at a main position. The audio enhancement system comprises at least one wireless transmitter, time delay circuitry, and plural augmented sound producing subsystems. Each sound subsystem is a portable unit arranged to be carried by a person located remote from the main loudspeaker and includes a wireless receiver and an associated transduce device, e.g., a pair of stereo headphones. The transmitter broadcasts an electrical signal which is representative of the electrical input signal provided to the main loudspeaker. The broadcast signal is received by the receiver and is demodulated and amplified to drive the transducer so that it produces augmented sound substantially in synchronism with the sound arriving from the main loudspeaker.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: July 11, 1995
    Assignee: Clair Bros. Audio Enterprises, Inc.
    Inventors: Roy B. Clair, Jr., Ronald D. Borthwick
  • Patent number: RE38405
    Abstract: A audio enhancement system and method of use with a sound system for producing primary sound from at least one main loudspeaker located at a main position. The audio enhancement system comprises at least one wireless transmitter, time delay circuitry, and plural augmented sound producing subsystems. Each sound subsystem is a portable unit arranged to be carried by a person located remote from the main loudspeaker and includes a wireless receiver and an associated transduce device, e.g., a pair of stereo headphones. The transmitter broadcasts an electrical signal which is representative of the electrical input signal provided to the main loudspeaker. The broadcast signal is receiver by the receiver and is demodulated and amplified to drive the transducer so that it produces augmented sound substantially in synchronism with the sound arriving from the main loudspeaker.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: January 27, 2004
    Assignee: Clair Bros. Audio Enterprises, Inc.
    Inventors: Roy Barry Clair, Jr., Ronald D. Borthwick