Sensitivity Or "q" Adjustment Means In Tuned Circuitry Patents (Class 334/40)
  • Patent number: 9157939
    Abstract: A method and to a system can be used for measuring electric voltages in batteries with a number of battery cells. A measuring circuit includes at least one digital analog converter that constitutes, in combination with a number of comparators, an analog digital converter to determine the electric voltages of the battery cells. The comparators compare a reference voltage generated by the digital analog converter with the electric voltage of the battery cells over a number of separate measuring channels to the individual battery cells.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: October 13, 2015
    Assignee: Infineon Technologies AG
    Inventors: Clemens Kain, Guenter Gross
  • Patent number: 8395528
    Abstract: Methods and apparatus for computing the carrier frequency of a transmitter using frequency modulated digital data to compensate for frequency shifting of the transmitter and the receiver local oscillators and for bandwidth adjustment of the receiver's filter. In particular, methods and apparatus are disclosed for binary systems transmitting “1” and “0” data using decoded or undecoded received signals.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 12, 2013
    Assignee: Itron, Inc.
    Inventors: Barry Cahill-O'Brien, Mark K. Cornwall
  • Patent number: 8237531
    Abstract: An inductor circuit with high quality (Q) factor includes a primary inductor and a compensation sub-circuit. The compensation sub-circuit is electrically isolated from the primary inductor. The compensation sub-circuit is magnetically coupled with the primary inductor to compensate the loss in the primary inductor.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 7, 2012
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ping Qiu, Chirn Chye Boon, Johnny Kok Wai Chew, Kiat Seng Yeo, Manh Anh Do, Lap Chan, Suh Fei Lim
  • Patent number: 7884680
    Abstract: One embodiment relates to a circuit for active loss compensation. The circuit includes a parallel inductor-capacitive (LC) tank circuit having a first single-ended output. A first adjustable capacitor, which includes a first terminal and a second terminal, is coupled to the first single-ended output. The circuit also includes a first pair of transistors having sources coupled to a first common node. One transistor of the first pair of transistors has a drain coupled to the first single-ended output and the other transistor of the first pair of transistors has a gate coupled to the second terminal of the first adjustable capacitor. Other embodiments are also disclosed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 8, 2011
    Assignee: Infineon Technologies AG
    Inventors: Alfred Raidl, Christoph Schmits, Wolfgang Thomann
  • Publication number: 20090167466
    Abstract: An inductor circuit with high quality (Q) factor includes a primary inductor and a compensation sub-circuit. The compensation sub-circuit is electrically isolated from the primary inductor. The compensation sub-circuit is magnetically coupled with the primary inductor to compensate the loss in the primary inductor.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicants: CHARTERED SEMICONDUCTOR MANUFACTURING, LTD., NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Ping QIU, Chirn Chye BOON, Johnny Kok Wai CHEW, Kiat Seng YEO, Manh Anh DO, Lap CHAN, Suh Fei LIM
  • Patent number: 7171176
    Abstract: A circuit and method for adjusting the operating characteristics of a tuner in accordance with information derived from the signals being processed by the tuner. Depending upon signal type and/or signal strength, the power levels of certain components are adjusted and/or certain components are added to (or subtracted from) the tuner.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: January 30, 2007
    Assignee: Microtune (Texas), L.P.
    Inventor: S. Vincent Birleson