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公开(公告)号：US10177839B2
公开(公告)日：2019-01-08
申请号：US15174008
申请日：2016-06-06
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Christoph Herrmann
Abstract: A wireless network with at least one base station and a plurality of associated terminals for the exchange of payload data and control data and at least one common transmission channel which is available for access to several terminals is described. The base station is configured to control access to the common transmission channel and the terminals are configured to send at least an access signal to the base station for the purpose of obtaining access to the common transmission channel. Different start moments and different preambles can be assigned to the terminals for transmitting their respective access signals.
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公开(公告)号：US09753157B2
公开(公告)日：2017-09-05
申请号：US15036561
申请日：2015-09-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger Steadman Booker , Christoph Herrmann , Frank Verbakel
CPC classification number: G01T1/244 , A61B6/032 , A61B6/4488 , G01T1/247
Abstract: The invention relates to a radiation detector (100′) and a method for detecting radiation, particularly for detecting X-rays (X) in a CT imaging apparatus (1000′). According to a preferred embodiment, the radiation detector (100′) comprises a conversion element (110) for converting incident radiation (X) into electrical signals which are read out and processed by a readout circuit (120). A heating device comprising the heat source (135′) of a Peltier element is provided with which the conversion element (110) can controllably be heated in order to reduce negative effects, e.g. of polarization, on image accuracy, wherein the heat sink (137′) of the Peltier element is oriented towards the readout circuit.
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公开(公告)号：US09746566B2
公开(公告)日：2017-08-29
申请号：US14647139
申请日：2013-09-29
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Christoph Herrmann
IPC: G01T1/24
CPC classification number: G01T1/247
Abstract: The present invention relates to the correction of X-ray image information, e.g. the correction of X-ray image information regarding persistent currents in X-ray detector elements. X-ray detectors may be embodied as photoconductors with ohmic contacts, which output a photo current depending on the energy and amount of photons impinging on a respective photoconductor pixel. Such photoconductors may exhibit a photoconductive gain, i.e. the measured current when irradiated by X-ray is higher than the current, which would result from impinging photons only generating electron-hole pairs. To compensate for photoconductive gain a method (50) for image correction of X-ray image information is provided, comprising receiving (52) readout information of an X-ray detector element (14), wherein the readout information is dependent on impinging X-radiation (20) generating a photo current and compensating (54) the readout information for a photoconductive gain employing compensation information.
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公开(公告)号：US09608157B2
公开(公告)日：2017-03-28
申请号：US14422100
申请日：2013-08-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Klaus Juergen Engel , Christoph Herrmann
IPC: H01L31/115 , H01L27/146 , G01T1/24 , H01L31/0224 , H01L31/18
CPC classification number: H01L31/115 , G01T1/241 , H01L27/14676 , H01L31/022408 , H01L31/18
Abstract: A radiation detector (10) includes a semiconductor element (1) for generating positive holes and electrons, a cathode (2) formed on a first surface of the semiconductor element (1) and a plurality of segmented anodes (3) formed on a second surface of the semiconductor element (1), the second surface being in opposed relation to the first surface. Additionally, a plurality of segmented steering electrodes (5a) are positioned adjacent the plurality of segmented anodes (3). Moreover, a plurality of doping atoms are located above at least a portion of the plurality of segmented anodes (3) for reducing the voltage difference between the plurality of segmented anodes (3) and the plurality of segmented steering electrodes (5a).
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公开(公告)号：US09535174B2
公开(公告)日：2017-01-03
申请号：US14427015
申请日：2013-09-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Klaus Juergen Engel , Roger Steadman Booker , Christoph Herrmann
IPC: G01T1/24
Abstract: The present invention discloses a pixilated direct conversion photon counting detector with a direct conversion material layer and a pixilated electrode. Individual electrode pixels are segmented into three segments (510, 520, 530), wherein one of the segments (520) is operated at a more electrically repellant value than that of the other two (510, 530). Said other two segments are connected to electric circuitry (610, 611, 620, 630) that is arranged to generate signals which are indicative of a count of electrons or holes that approach each of the respective electrode pixel segments and to subtract the generated signals from each other.
Abstract translation: 本发明公开了一种具有直接转换材料层和像素化电极的像素化直接转换光子计数检测器。 单个电极像素被分割成三个段（510,520,530），其中段（520）中的一个以比其他两个（510,530）的电阻值更大的电驱动值操作。 所述另外两个部分连接到电路（610,611,620,630），电路被布置成产生指示接近各个电极像素段中的每一个的电子或空穴的计数的信号，并从 彼此。
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Patent Agency Ranking
公开(公告)号：US20150285676A1
公开(公告)日：2015-10-08
申请号：US14440609
申请日：2013-11-08
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Christoph Herrmann , Roger Steadman Booker
CPC classification number: G01J1/44 , G01J2001/4446 , G01T1/00 , G01T1/24 , H01L31/02966 , H01L31/085 , H01L31/09 , H01L31/1832
Abstract: The invention relates to radiation detection with a directly converting semiconductor layer for converting an incident radiation into electrical signals. Sub-band infra-red (IR) irradiation considerably reduces polarization in the directly converting semi-conductor material when irradiated, so that counting is possible at higher tube currents without any baseline shift. An IR irradiation device is integrated into the readout circuit to which the crystal is flip-chip bonded in order to enable 4-side-buttable crystals.
Abstract translation: 本发明涉及具有直接转换半导体层的放射线检测，用于将入射辐射转换为电信号。 子带红外（IR）照射显着降低了直接转换半导体材料的照射时的极化，从而可以在更高的管电流下进行计数，而无需基线偏移。 将IR照射装置集成到晶体被倒装芯片接合的读出电路中，以便能够实现4面可晶的晶体。
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公开(公告)号：US20150228838A1
公开(公告)日：2015-08-13
申请号：US14422100
申请日：2013-08-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Klaus Juergen Engel , Christoph Herrmann
IPC: H01L31/115 , H01L31/18 , G01T1/24 , H01L31/0224
CPC classification number: H01L31/115 , G01T1/241 , H01L27/14676 , H01L31/022408 , H01L31/18
Abstract: A radiation detector (10) includes a semiconductor element (1) for generating positive holes and electrons, a cathode (2) formed on a first surface of the semiconductor element (1) and a plurality of segmented anodes (3) formed on a second surface of the semiconductor element (1), the second surface being in opposed relation to the first surface. Additionally, a plurality of segmented steering electrodes (5a) are positioned adjacent the plurality of segmented anodes (3). Moreover, a plurality of doping atoms are located above at least a portion of the plurality of segmented anodes (3) for reducing the voltage difference between the plurality of segmented anodes (3) and the plurality of segmented steering electrodes (5a).
Abstract translation: 辐射检测器（10）包括用于产生正空穴和电子的半导体元件（1），形成在所述半导体元件（1）的第一表面上的阴极（2）和形成在所述半导体元件（1）的第二表面上的多个分段阳极 半导体元件（1）的表面，第二表面与第一表面相对。 另外，多个分段转向电极（5a）位于多个分段阳极（3）附近。 此外，多个掺杂原子位于多个分段阳极（3）的至少一部分上方，用于减少多个分段阳极（3）与多个分段转向电极（5a）之间的电压差。
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公开(公告)号：US20150185332A1
公开(公告)日：2015-07-02
申请号：US14408097
申请日：2013-06-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Christoph Herrmann
CPC classification number: G01T1/171 , G01N23/046 , G01T1/17 , H03M1/125
Abstract: An apparatus includes a pulse shaper (120) for receiving signals indicative of detected photons and generating a plurality of pulses therefrom to form a pulse train (200) and a peak detector (150) for sampling the pulse train (200) at an output of the pulse shaper (120). The peak detector (150) includes a circuit (300) for selectively detecting and sampling a maximum (202a, b, c) and a minimum (204a, b) value of the pulse train (200). The maximum (202a, b, c) and minimum (204a, b) values sampled are then converted from analog-to-digital format via an analog-to-digital converter (160).
Abstract translation: 一种装置包括：脉冲整形器（120），用于接收指示检测到的光子的信号并从中产生多个脉冲以形成脉冲串（200）和峰值检测器（150），用于在脉冲串（200）的输出端 脉冲整形器（120）。 峰值检测器（150）包括用于选择性地检测和采样脉冲串（200）的最大值（202a，b，c）和最小值（204a，b）的电路（300）。 然后，采样的最大值（202a，b，c）和最小值（204a，b）经由模数转换器（160）从模数转换为数字格式。
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29.发明申请公开(公告)号：US20140284489A1
公开(公告)日：2014-09-25
申请号：US14354695
申请日：2012-11-07
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Klaus Juergen Engel , Christoph Herrmann
IPC: G01T1/29
CPC classification number: G01T1/2928 , G01T1/241 , H01L27/14609 , H01L27/14665
Abstract: In radiation-sensitive detector devices, such as direct conversion detectors, charges are drifting within an externally applied electric field towards collecting electrodes (4), which are segmented (e.g. representing a pixel array). At the gaps between segments, electrical field lines can leave the detector, and charges drifting along those field lines can be trapped within the gap. This can be avoided by external electrodes (8) which push electric field lines back into the direct conversion material.
Abstract translation: 在诸如直接转换检测器的辐射敏感检测器装置中，电荷在外部施加的电场内漂移到收集电极（4），其被分段（例如表示像素阵列）。 在段之间的间隙处，电场线可以离开检测器，并且沿着这些场线的漂移电荷可以被捕获在间隙内。 这可以通过将电场线推回到直接转换材料中的外部电极（8）来避免。
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公开(公告)号：US11099279B2
公开(公告)日：2021-08-24
申请号：US15756620
申请日：2016-09-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger Steadman Booker , Christoph Herrmann , Amir Livne
Abstract: A detector signal is corrected by superimposing the detector signal with a correction signal. For providing a valid correction signal, a sampling pulse is periodically or randomly provided. The sampling pulse serves as the initiator for sampling a process signal. During the sampling, the process signal is observed. In case a pulse at the process signal is detected, the sampling is assumed as not being suitable to correct the detector signal, since the pulse affects the process signal. Otherwise, the process signal is further observed during a validation period to validate whether the sampled process value of the process signal has already been influenced by an upcoming pulse at the process signal. In case the sampling is assumed as valid, the sampled process value is used as a basis for providing the correction signal.
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