Synchronization for dynamic imaging
AssigneeCarestream Health, Inc.
InventorsSamuel RICHARD, Xiaohui WANG, Timothy J. WOJCIK, Nathan J. PACKARD
Life of this patent
Estimating the term…
Abstract
Synchronizing operation between a digital radiographic detector's integration periods and an x-ray generator's x-ray pulse rate by transmitting a frame rate to the detector and the generator. In a first mode, the detector monitors one or more pixels to detect an x-ray pulse. The firing time of the detected x-ray pulse relative to an internal clock of the detector is used to synchronize the detector's integration periods with the pulse rate of the x-ray generator based on the transmitted frame rate and the detected firing time of the x-ray pulses. Successive pulses may also be used to determine a frame rate without prior transmission thereof.
Claims15
A method for synchronizing operation between a digital radiographic detector's integration periods and an x-ray generator's x-ray pulse rate, the method comprising:
- communicating a frame rate to the detector and the generator;
- operating in a first mode with the detector monitoring one or more selected pixels to detect an x-ray pulse from the x-ray generator;
- determining a start time of the generator emitting the detected x-ray pulse relative to an internal clock of the detector, and
- operating in a second mode by selectively synchronizing integration periods of the detector with start times of the generator emitting x-ray pulses based on the communicated frame rate and the determined start time of the generator emitting the detected x-ray pulse.
An x-ray imaging system comprising:
- a wireless digital radiographic detector comprising an internal clock and configured to controllably schedule integration periods;
- an x-ray generator configured to controllably fire x-ray pulses at a preset frame rate;
- and
- a processing system wirelessly coupled to the detector and coupled by a hard wire to the x-ray generator to communicate a frame rate to the detector and the generator,
- wherein the detector is configured to monitor one or more selected pixels to detect an x-ray pulse from the x-ray generator and to determine a start time of the detected x-ray pulse relative to the internal clock,
- and wherein the detector is configured to selectively synchronize integration periods of the detector with start times of the generator emitting x-ray pulses based on the communicated frame rate and the determined start time of the detected x-ray pulse.
Dependencies are inferred from the claim text.