# US 11,307,312 B2 · Image acquisition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,307,312 B2 - Document ID: US11307312B2 - Status: Granted - Kind: B2 - Application number: 16/978,855 - Filed: 2019-02-25 - Published: 2021-02-11 - Granted: 2022-04-19 - Earliest claimed: 2018-03-07 - Assignees: Koninklijke Philips N.V. - Applicants: Koninklijke Philips N.V. - Inventors: Roger Steadman Booker; Roland Proksa - Web page: https://patentgrep.com/patent/US11307312B2 ## CPC - G01T 1/17: Circuit arrangements not adapted to a particular type of detector {(pulse-selection circuits H03K, G01R)} - A61B 6/4208: {characterised by using a particular type of detector} - A61B 6/54: {Control of apparatus or devices for radiation diagnosis} - G01T 1/20184: {Detector read-out circuitry, e.g. for clearing of traps, compensating for traps or compensating for direct hits} - G01T 1/2985: {In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis); (using external radiation sources A61B6/02)} - A61B 6/032: {Transmission computed tomography [CT]} - A61B 6/4035: {the source being combined with a filter or grating} - G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present invention relates to a detection device for X-rays, an imaging system and a method for detecting electro-magnetic radiation using a detection device for X-rays, wherein an estimate of an incomplete measurement is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam or in an intensity of the electromagnetic radiation. ## Claims ### Claim 1 A detection device for X-rays, comprising: at least one sensor configured to provide a current in response to electromagnetic radiation exposure during at least one image acquisition frame; at least one electronics board comprising at least one integrator providing a capacitor that is configured to discharge in response to the current provided by the sensor, wherein a discharge of the capacitor defines at least one cycle; a capacitor discharge analyzer configured to analyze the discharge of the capacitor and to provide a full-discharge signal when the capacitor is fully discharged in response to the current provided by the sensor; a counter configured to measure a cycle time, defined as a period between a start of a new cycle and a full discharge of the capacitor based on the full-discharge signal provided to the counter by the capacitor discharge analyzer; and a processor configured to: obtain the cycle time of the at least one cycle from the counter; store the obtained cycle time of the at least one cycle; compare the cycle time of the at least one cycle with one or more previously stored cycle times; and provide an estimate of an incomplete cycle acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation. ### Claim 2 A method for detecting electromagnetic radiation comprising: sensing electromagnetic radiation exposure during at least one image acquisition frame; providing a cycle time of at least one cycle, wherein the cycle time is defined as the period to fully discharge a capacitor of at least one integrator of an electronics board of the detection device; storing the provided cycle time of the at least one cycle; and comparing the cycle time of the at least one cycle with one or more previously stored cycle times; wherein an estimate of an incomplete cycle is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation. ### Claim 3 (depends on 2) The method according to claim 2, wherein the cycle time of the at least one cycle replaces the stored cycle time of a last completed cycle; if the at least one cycle is complete. ### Claim 4 (depends on 2) The method according to claim 2, wherein the estimate for the incomplete cycle is acquired for a cycle time which is less than the stored cycle time of the last completed cycle. ### Claim 5 (depends on 2) The method according to claim 2, wherein the ratio of the provided cycle time and the cycle time for the last completed cycle represents an estimate of the incomplete cycle. ### Claim 6 (depends on 2) The method according to claim 2, wherein the cycle times of all cycles during at least one image acquisition frame are provided and a variance of the cycle time is calculated. ### Claim 7 (depends on 2) The method according to claim 2, wherein the discontinuity comprises at least one of a change of wavelength of the electromagnetic radiation, a blank period of the electromagnetic radiation, and a change. ### Claim 8 (depends on 2) The method according to claim 2, wherein a discontinuity of the electromagnetic radiation is compensated by modifying a gain of the at least one cycle during the at least one image acquisition frame. ### Claim 9 (depends on 8) The method according to claim 8, wherein the modification of the gain comprises adding a reference voltage which resets the capacitor when the signal reaches a certain threshold. ### Claim 10 (depends on 8) The method according to claim 8, wherein the reference voltage is different for subsequent image acquisition frames. ### Claim 11 A non-transitory computer-readable medium having executable instructions stored thereon which, when executed by at least one processor, cause the at least one processor to perform a method for detecting electromagnetic radiation, the method comprising: sensing electromagnetic radiation exposure during at least one image acquisition frame; providing a cycle time of at least one cycle, wherein the cycle time is defined as the period to fully discharge a capacitor of at least one integrator of an electronics board of the detection device; storing the provided cycle time of the at least one cycle; and comparing the cycle time of the at least one cycle with one or more previously stored cycle times; wherein an estimate of an incomplete cycle is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation.