Patents by Inventor Martinus Bredius

Martinus Bredius 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).

  • Fault tolerant air bag bus system without transformer
    Patent number: 6512308
    Abstract: A fault tolerant air bag system needs a floating supply, which supply conventionally is made by means of a DC-DC converter with a transformer. By splitting the main energy reserve capacitor (14) into two capacitors (14, 34), and coupling one of the capacitors (34) to the other (14) by means of switches (36, 38) which open during a crash, no transformer is needed any more.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: January 28, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hendrik Boezen, Aloysius Johannes Maria Boomkamp, Martinus Bredius, Peter Buehring, Patrick Willem Hubert Heuts, Abraham Klaas Van Den Heuvel, Egon Joehnk, Maarten Teunis Visser, Ruurd Anne Visser
  • Fault tolerant air bag bus system without transformer
    Publication number: 20010054846
    Abstract: A fault tolerant air bag system needs a floating supply, which supply conventionally is made by means of a DC-DC converter with a transformer. By splitting the main energy reserve capacitor (14) into two capacitors (14, 34), and coupling one of the capacitors (34) to the other (14) by means of switches (36, 38) which open during a crash, no transformer is needed any more.
    Type: Application
    Filed: April 19, 2001
    Publication date: December 27, 2001
    Inventors: Hendrik Boezen, Aloysius Johannes Maria Boomkamp, Martinus Bredius, Peter Buehring, Patrick Willem Hubert Heuts, Abraham Klaas Van Den Heuvel, Egon Joehnk, Maarten Teunis Visser, Ruurd Anne Visser
  • CAN bus driver with symmetrical differential output signals
    Patent number: 6154061
    Abstract: Bus driver having a P-channel output transistor (T1) for driving a first bus terminal (6) from a positive supply terminal (2), an N-channel output transistor (T2) for driving a second bus terminal (12) from a negative supply terminal (4), a P-channel driver transistor (T3) and an N-channel driver transistor (T4) series connected between the positive (2) and the negative (4) supply terminal. The control electrodes of the P-channel transistors (T1, T3) are interconnected and the control electrodes of the N-channel transistors (T2, T4) are interconnected to obtain a fixed relationship between the currents through the P-channel transistors (T1, T3) and through the N-channel transistors (T2, T4). The conduction of the driver transistors (T3, T4) is controlled by two floating control voltage sources (22, 24) which are connected between the interconnection node (20) of the driver transistors (T3, T4) and the respective control electrodes of the driver transistors.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: November 28, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Hendrik Boezen, Martinus Bredius, Aloysius J. M. Boomkamp, Cecilius G. Kwakernaat, Abraham K. Van Den Heuvel
  • Two-line mixed analog/digital bus system and a master station and a slave station for use in such system
    Patent number: 5604918
    Abstract: A two-line multi-station bus system has a clock wire and a data wire and supports selective slave station addressing by a prevalent master station for thereupon eliciting a bitwise clocked data transfer between the clocking master station and an addressed and clocked slave station. Moreover, the system supports analog signal transfer in that the prevalent master station has a holding member for while eliciting the analog signal from the actual addressed slave station holding said clocking through carrying the clock wire at a predetermined binary value. The analog signal is received until changeover of the clock wire to a binary value other than the predetermined binary value a particular version the analog signal is pulse width modulated in combination with associate delimiting signals on the clock wire sent by the transmitter station that is not necessarily the master station.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: February 18, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Johan H. Huijsing, Roeland F. Tuk, Frank R. Riedijk, Martinus Bredius, Gerrit Van Der Horn, Herman Schutte