Patents Assigned to Telex Communications, Inc.
  • Publication number: 20100002893
    Abstract: A wireless communication system for use in aircraft includes a wireless headset having at least one ear cup with a housing. A first ultra wideband transceiver is disposed in the ear cup housing. A base station includes a second ultra wideband transceiver. The second ultra wideband transceiver wirelessly communicates with the first ultra wideband transceiver.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Applicant: Telex Communications, Inc.
    Inventors: Lalin S. Theverapperuma, Darcy Zehnder, Talal Aly-Youssef
  • Publication number: 20040190736
    Abstract: A flush mountable ceiling speaker (10) with individual coaxial waveguides (20, 22) for both the lower and high-frequency transducers (11, 12). The lower frequency radiation is combined with the sonic energy radiated by the high-frequency transducer (12) and shaped by the high-frequency waveguide (20) to create a coherent, uniformly controlled coverage pattern. The loudspeaker (10) creates a well defined sound dispersion pattern over a relatively large bandwidth, resulting in increased vocal intelligibility and more accurate reproduction of music at relatively great distances from the loudspeaker, as is particularly useful in association with high ceiling installations.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: Telex Communications Inc.
    Inventors: William James Gelow, Christopher Sean Beckett
  • Patent number: 6496589
    Abstract: A headset is disclosed having a headband configuration that distributes the compression forces on the user's head to provide firm placement without causing discomfort to the user. The headband is preferably integrally formed with a soft overmold molded along a portion of its interface with the user's head. The headband terminates in first and second ends. Either or both ends may terminate in a flared temple pad for further distribution of compression forces or may terminate in an earphone. A boom is pivotally connected to either a temple pad or an earphone and is optionally conformable for positioning towards the wearer's mouth. The boom terminates in a microphone.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: December 17, 2002
    Assignee: Telex Communications, Inc.
    Inventors: Hoa Pham, Michael Carpenter
  • Patent number: 6483476
    Abstract: A one-piece multi-element directional Yagi-Uda antenna comprised of an array of director elements, a reflector element, boom and folded dipole driven element is fabricated from a single piece of conductive material. The method of forming the antenna uses simple, low-cost techniques, such as single and progressive die stamping, punching and forming. The dipole driven element of the antenna is formed by folding the ends of the driven element during the stamping process or in a separate folding step. In an alternative embodiment of the invention, the boom of the antenna array is formed with sufficient length to operatively connect a radome thereto.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: November 19, 2002
    Assignee: Telex Communications, Inc.
    Inventor: Roger A. Cox
  • Patent number: 6373951
    Abstract: To transmit encoded information such as for example voice messages between remote transceivers, a transmitter digitizes and encodes an audio signal and then transmits the resulting digital coded signal to the receiver. The receiver decodes the signal and converts it back to an audio signal. The received encoded digital signal is used to reset the timing clock in the receiver so that the timing is synchronized in the receiver and transmitter by the transmitted encoded information. The encoder transmits digital information to a shift register. Encoding switches select certain stages of the shift register and the transmitter transmits the exclusive-OR of the digitized message and the output of the selected stages. This signal is also the input to the shift register. The information transmitted to the receiver is a scrambled digital signal.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: April 16, 2002
    Assignee: Telex Communications, Inc.
    Inventors: Keith E. Jenkins, Robert B. Basine, LaRhue G. Friesen
  • Patent number: 6278786
    Abstract: An active noise cancellation aircraft headset system. A speaker is mounted within each earcup of a headset for receiving and acoustically transducing a composite noise cancellation signal. A microphone is also mounted within each earcup for transducing acoustic pressure within the earcup to a corresponding analog error signal. An analog filter receives the analog error signal and inverts it to generate an analog broadband noise cancellation signal. The analog error signal is also provided to an analog to digital converter, which receives the analog microphone error signal and converts it to a digital error signal. A DSP takes the digital error signal and, using an adaptive digital feedback filter, generates a digital tonal noise cancellation signal. A digital to analog converter then converts the digital tonal noise cancellation signal to an analog tonal noise cancellation signal so that it can be combined with the analog broadband noise cancellation signal.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: August 21, 2001
    Assignee: Telex Communications, Inc.
    Inventor: Jason D. McIntosh
  • Patent number: 6256484
    Abstract: An inexepensive diversity receiver compares the received signal strength signal with a threshold value. When the received signal falls below the threshold value a signal is transmitted through a conductor and a delay circuit to a NAND gate. If the signal is applied to the the two inputs of the NAND gate at the same time, the output of the NAND gate switches a bistable flip-flop which in turn connects or disconnects a second antenna that is 180 degrees in phase from the first antenna between a state in which the signals from the two antenna is combined and a state in which they are not combined and only one antenna applies signals to the receiver.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: July 3, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Charles E. Conner, Robert B. Basine
  • Patent number: 6069878
    Abstract: A time division multiplexing ("TDM") digital matrix intercom system for connecting intercom stations. The system includes a digital switching system receiving audio input communications signals from at least some of the intercom stations, and sending audio input communications signals to at least some of the intercom stations. The digital switching system includes a TDM system for broadcasting on a TDM bus multiple digital communications signals including such digital audio input signals. The TDM system includes one or more interfaces connecting intercom stations with the TDM bus.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: May 30, 2000
    Assignee: Telex Communications, Inc.
    Inventor: Steven G. Christensen
  • Patent number: D503703
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: April 5, 2005
    Assignee: Telex Communications, Inc.
    Inventors: Christopher S. Beckett, Ryan P. Whitehouse
  • Patent number: D443870
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: June 19, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Michael Carpenter, Gregory Wright, Lars Runquist, David Copeland
  • Patent number: D444143
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: June 26, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Michael Andreini, Michael Carpenter, Hoa Pham, Gregory Wright
  • Patent number: D448751
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: October 2, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Hoa Pham, Michael Carpenter
  • Patent number: D449038
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: October 9, 2001
    Assignee: Telex Communications, Inc.
    Inventors: Michael Andreini, Hoa Pham, Michael Carpenter
  • Patent number: D529484
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: October 3, 2006
    Assignee: Telex Communications, Inc.
    Inventor: Eli Gregory Probst
  • Patent number: D534159
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: December 26, 2006
    Assignee: Telex Communications, Inc.
    Inventors: Ryan P. Whitehouse, Michael Carpenter
  • Patent number: D535645
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: January 23, 2007
    Assignee: Telex Communications, Inc.
    Inventor: Eli Gregory Probst
  • Patent number: D467571
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: December 24, 2002
    Assignee: Telex Communications, Inc.
    Inventors: Ryan Paul Whitehouse, Christopher Sean Beckett, Robert E. Mora
  • Patent number: D468723
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: January 14, 2003
    Assignee: Telex Communications, Inc.
    Inventors: Hoa Pham, Jason Lardy
  • Patent number: D469770
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: February 4, 2003
    Assignee: Telex Communications, Inc.
    Inventors: Michael Carpenter, Hoa Pham, Jason Lardy
  • Patent number: D481370
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: October 28, 2003
    Assignee: Telex Communications, Inc.
    Inventors: Jeffrey Popowski, Lars Runquist