Processing

Please wait...

Settings

Settings

Goto Application

1. WO2005125015 - METHOD AND APPARATUS FOR TIME MEASUREMENT

Publication Number WO/2005/125015
Publication Date 29.12.2005
International Application No. PCT/US2005/020876
International Filing Date 14.06.2005
IPC
G06F 1/04 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/-G06F13/82
04Generating or distributing clock signals or signals derived directly therefrom
G06F 1/06 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/-G06F13/82
04Generating or distributing clock signals or signals derived directly therefrom
06Clock generators producing several clock signals
G11C 8/18 2006.01
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
8Arrangements for selecting an address in a digital store
18Address timing or clocking circuits; Address control signal generation or management, e.g. for row address strobe or column address strobe signals
G01R 35/00 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
35Testing or calibrating of apparatus covered by the other groups of this subclass
H03L 7/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
CPC
G04F 10/00
GPHYSICS
04HOROLOGY
FTIME-INTERVAL MEASURING
10Apparatus for measuring unknown time intervals by electric means
G04F 5/00
GPHYSICS
04HOROLOGY
FTIME-INTERVAL MEASURING
5Apparatus for producing preselected time intervals for use as timing standards
G04G 3/00
GPHYSICS
04HOROLOGY
GELECTRONIC TIME-PIECES
3Producing timing pulses
Applicants
  • POWERPRECISE SOLUTIONS, INC. (AllExceptUS)
  • HOULDSWORTH, John [GB]/[US] (UsOnly)
Inventors
  • HOULDSWORTH, John
Agents
  • LAZAR, Dale, S.
Priority Data
60/579,62014.06.2004US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR TIME MEASUREMENT
(FR) PROCEDE ET APPAREIL DE MESURE DU TEMPS
Abstract
(EN)
A method is provided for accurate time measurement. The time is first measured with a first oscillator (105). At designated intervals, a second oscillator (110) is activated for a period of time based on the first oscillator. The second oscillator is more accurate than the first oscillator. Pulses are then counted, by way of counter (125), from the second oscillator during the period of time. The count from the second oscillator is used as a new measurement of the period of time of the first oscillator.
(FR)
L'invention concerne un procédé permettant de mesurer le temps avec précision. Le temps est d'abord mesuré à l'aide d'un premier oscillateur. Un second oscillateur est activé à des intervalles déterminés pendant une durée déterminée en fonction du premier oscillateur. Le second oscillateur est plus précis que le premier oscillateur. Les impulsions sont comptées par le second oscillateur pendant ladite période déterminée. Le second oscillateur est alors désactivé à la fin de ladite période. Le comptage du second oscillateur sert de nouvelle mesure pour la période temporelle associée au premier oscillateur.
Latest bibliographic data on file with the International Bureau