With Coupling Or Blocking Capacitor Patents (Class 330/177)
  • Patent number: 8284962
    Abstract: An Electronic bass register musical instrument tube preamplifier includes an in line signal pre-amplification device in a Class A audio amplifier configuration. The pre-amplification device includes one or more modern thin film capacitors coupled to the output of the preamplifier circuit from the anode of half of a dual triode 12AX7 electron tube and one or more “paper in oil” capacitors. The one or more “paper in oil” capacitors are coupled to bypass and decouple to ground at the anode of half of the dual triode 12AX7 electron tube.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: October 9, 2012
    Inventor: Clifford William Latshaw
  • Patent number: 7714371
    Abstract: A method and apparatus if provided for shielding a capacitor structure formed in a semiconductor device. In a capacitor formed in an integrated circuit, one or more shields are disposed around layers of conductive strips to shield the capacitor. The shields confine the electric fields between the limits of the shields.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 11, 2010
    Assignee: Black Sand Technologies, Inc.
    Inventors: Susanne A. Paul, Timothy J. Dupuis, Ali M. Niknejad
  • Patent number: 6952159
    Abstract: A coupling apparatus (1) having a mains connection (2) for connection to a low-voltage mains power supply system, and having an appliance connection (3) for connection of any appliance for transmitting and/or receiving an RF signal has a voltage converter (5) and a high-pass filter (6.1, 6.2). The voltage converter converts the mains voltage which is present at the mains connection to a very-low voltage, which is suitable for supplying the appliance connected to the appliance connection. Inductances (4.3 to 4.6) of suitable size are interposed in the appropriate connecting lines as low-pass filters for decoupling the RF signal path from the supply signal path, and for suppressing undesirable, radio-frequency signal components in the supply voltages. RF signals which are transmitted or are to be transmitted via the low-voltage mains power supply system are coupled from the mains connection via the high-pass filter to the appliance connection, and from the appliance connection to the mains connection.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: October 4, 2005
    Assignee: Ascom Powerline Communications AG
    Inventor: Kurt Müller