Electricity: motive power systems – Having plural – diverse or diversely controlled sources
Reexamination Certificate
2005-09-27
2005-09-27
Martin, David (Department: 2837)
Electricity: motive power systems
Having plural, diverse or diversely controlled sources
C318S471000, C318S268000, C341S126000, C341S155000, C341S166000, C341S158000
Reexamination Certificate
active
06949903
ABSTRACT:
When digitizing a voltage, a capacitor is charged, through an impedance, to a voltage value (Um) dependent on the voltage to be digitized. The limits of that one of a plurality of voltage ranges in which said voltage value (Um) lies, are ascertained, and the two limits of that voltage range are defined as a first limit and second limit; the voltage at the capacitor is modified to the first limit by a charge modification circuit containing an impedance, and a first time interval needed therefor is identified; the voltage at the capacitor is modified to the second limit; the voltage at the capacitor is modified from the second to the first limit via the charge modification circuit. A seond time interval needed therefor is identified. Based on values of the first time interval and second time interval, a digital value is calculated, which serves as an indication of how much the voltage value (Um) at the capacitor differs from one of said two limits.
REFERENCES:
patent: 4763347 (1988-08-01), Erdman
patent: 4857931 (1989-08-01), Gulczynski
patent: 5014058 (1991-05-01), Horn
patent: 5099241 (1992-03-01), Gulczynski
patent: 5206649 (1993-04-01), Gulczynski
patent: 5216426 (1993-06-01), Ishioka
patent: 5313208 (1994-05-01), Bellini
patent: 5831568 (1998-11-01), Mohr
patent: 6229472 (2001-05-01), Nishida
patent: 6452349 (2002-09-01), Hahn et al.
patent: 6492929 (2002-12-01), Coffey et al.
patent: 6496340 (2002-12-01), Hornberger et al.
patent: 44 23 955 (1996-01-01), None
patent: 198 36 882 (2000-02-01), None
patent: 64-78030 (1989-03-01), None
English abstract of ISHIGURO/SANYO Pub. #010-78030-A of Mar. 23, 1989, entitled “A/D Converting Circuit”, retrieved from DEPATISNET database of German Patent Office.
“PIC16C62X EEPROM-Based 8-Bit CMOS Microcontrollers” datasheet pp. 1-18 & 113-116 from Microchip Technology, Inc., Chandler, Arizona, 2002.
Berroth Hansjörg
Kuner Arnold
Schondelmaier Hans-Dieter
ebm-papst St. Georgen GmbH & Co. KG
Martin David
McCloud Renata
Oliver, Esq. Milton
Ware Fressola Van Der Sluys & Adolphson LLP
LandOfFree
Method and apparatus for digitizing a voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for digitizing a voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for digitizing a voltage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3382065