公开(公告)号：DE60325844D1

公开(公告)日：2009-03-05

申请号：DE60325844

申请日：2003-03-10

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BATHE CHRISTOPH H ,  CHROST WOLFGANG

IPC: H01J35/10 ,  H05G1/02 ,  H01J35/00 ,  H01J35/16

Abstract: The invention relates to a device for generating X-rays ( 41 ). The device comprises a source ( 5 ) for generating an electron beam ( 35 ), and a carrier ( 7 ) which is rotatable about an axis of rotation ( 15 ) and which is provided with a material ( 9 ) which generates the X-rays as a result of the incidence of the electron beam thereon. The device further comprises a heat absorbing member ( 45 ) which is arranged between the source and the carrier to catch electrons, which are scattered back from an impingement position ( 39 ) of the electron beam on the carrier, and to absorb a portion of the radiant heat generated by the carrier when heated during operation. The heat absorbing member is in thermal connection with a cooling system ( 51 ) of the device. According to the invention, the thermal connection between the heat absorbing member ( 45 ) and the cooling system ( 51 ) comprises a thermal barrier ( 57 ) which limits a rate of heat transfer (( ) occurring via the thermal connection per unit of temperature difference between the heat absorbing member and the cooling system. In a particular embodiment, said thermal barrier comprises an annular mounting member ( 57 ) having a limited dimension (hB), by means of which the heat absorbing member is mounted in the device. As a result of said thermal barrier, the heat absorbed by the heat absorbing member is gradually transferred to the cooling system, so that thermal peak loads on the cooling system and problems like boiling of the cooling liquid are avoided. In addition, relatively high temperatures of the heat absorbing member are allowed, so that the mass and volume of the heat absorbing member, which are necessary to provide the heat absorbing member with a sufficiently large heat absorbing capacity, are considerably reduced.

公开(公告)号：DE602004019131D1

公开(公告)日：2009-03-05

申请号：DE602004019131

申请日：2004-11-09

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： MARTIN SVEN

IPC: G06F17/27 ,  G10L15/18

Abstract: The present invention relates to a method, a system and a computer program product for mapping of semantic tags to phrases within a training corpus of weakly annotated sentences, thereby generating a grammar which can be applied to unknown sentences for the purpose of language understanding. The method is based on a probabilistic estimation that a given phrase is mapped to a semantic tag of a set of candidate semantic tags. The mapping and the generation of the grammar is performed according to a maximum mapping probability of a set of mapping probabilities of the given phrase and the set of candidate semantic tags. In particular, the determination of the mapping probability makes use of an expectation maximization algorithm.

公开(公告)号：DE50015522D1

公开(公告)日：2009-03-05

申请号：DE50015522

申请日：2000-01-11

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： HERRMANN CHRISTOPH ,  DU YONGGANG

IPC: H04B7/26 ,  H04B1/707 ,  H04J13/00 ,  H04W72/04

Abstract: The base stations (1-3) transmit the start time point of at least one signaling sequence of the terminals (4-14). The base stations contain a correlator of a received signaling sequence and for detecting of a pulse formed from a received and correlated signaling sequence. After reception of a signaling sequence, the base stations refuses or acknowledges the request of a terminal according to a channel capacity in one channel simultaneously used by several terminals.

公开(公告)号：DE60230812D1

公开(公告)日：2009-02-26

申请号：DE60230812

申请日：2002-12-12

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： VAN GENNIP NICASIUS ,  HAACKE MICHAEL ,  LUCE THOMAS ,  FRANSEN PETRUS J M

IPC: F21S8/10 ,  F21V7/04 ,  F21V7/00 ,  F21V17/00 ,  F21V19/00 ,  F21W101/10 ,  F21W107/00 ,  F21Y101/00

公开(公告)号：DE602005004653T2

公开(公告)日：2009-01-29

申请号：DE602005004653

申请日：2005-03-15

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： VAN STEVENDAAL UDO ,  SCHLOMKA JENS-PETER

IPC: G06T11/00 ,  A61B6/00 ,  A61B6/02 ,  A61B6/03 ,  G01N23/04 ,  G01N23/20 ,  G01N23/201 ,  G01T1/164 ,  G01V5/00

公开(公告)号：DE602005004413T2

公开(公告)日：2009-01-15

申请号：DE602005004413

申请日：2005-07-04

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： FORTHMANN PETER ,  KOEHLER THOMAS

IPC: G06T11/00

Abstract: The invention relates to a method of computed tomography wherein a radiation source moves relative to an examination zone along a helical trajectory and wherein the movement involves a rotation around a rotational axis and a shifting parallel to the rotational axis. During the movement, a detector unit acquires real measured values. Fictitious measured values are determined from the real measured values by solving John's equation for a virtual movement of the radiation source along an intersection ellipse. The intersection ellipse intersects the helical trajectory at an intersection point and is the intersection of a virtual cylindrical surface, on which the helical trajectory is situated, with an intersection plane that is defined by a tangent vector of the helical trajectory at the intersection point and a vector that is oriented perpendicular to the rotational axis. Finally, an image of the examination zone is reconstructed using the real and fictitious measured values.

公开(公告)号：DE602005004410T2

公开(公告)日：2009-01-08

申请号：DE602005004410

申请日：2005-06-29

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： SPIES LOTHAR

IPC: G06T5/00 ,  G06T11/00

Abstract: The invention relates to an imaging system for imaging an object (4), said imaging system comprising a detection unit (3) for consecutively acquiring projection data sets (Pi) of the object (4), said detection unit (3) having a temporal response function that is characterized by at least a time constant (τ), a rotation unit that, while the projection data sets (Pi) are being acquired, moves the detection unit (3) around the object (4) with an essentially constant angular velocity (ω), a reconstruction unit (9) for computing an image data set (13) of the object (4) from the projection data sets (Pi), and a filter unit (10) that, in an active state, applies a filter (f) on the image data set (13) to compute a correction, which filter acts as a derivative on the perturbed image, essentially in a direction corresponding to the direction of the angular velocity, is essentially proportional to the time constant (τ) and is essentially proportional to the angular velocity (ω), said filter unit (10) being arranged to subtract the correction from the image data set (13).

公开(公告)号：DE59712973D1

公开(公告)日：2008-11-27

申请号：DE59712973

申请日：1997-06-16

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： HAASE MARKUS DR ,  KYNAST ULRICH DR ,  BOERNER HERBERT DR ,  RONDA CORNELIS DR

IPC: B41J2/44 ,  H01L51/50 ,  B41J2/45 ,  B41J2/455 ,  H01B1/08 ,  H01L51/00 ,  H01L51/30 ,  H01L51/52 ,  H05B33/14 ,  H05B33/20 ,  H05B33/26

公开(公告)号：DE602004017000D1

公开(公告)日：2008-11-20

申请号：DE602004017000

申请日：2004-06-16

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： MOVASSAGHI BABAK ,  RASCHE VOLKER

IPC: G06T11/00

Abstract: The invention relates to a method and a device for generating a threedimensional image of an object ( 9 ) such as in particular the heart, from a series of (X-ray) projection pictures (P i , P j , P k , P l ). For the reconstruction only those projection pictures are used in which the projection lines (l i , l k , l l ) of a characteristic object feature intersect at approximately the same spatial point ( r 0 ). The characteristic object feature can in particular be a vessel branch which can easily be located on the projection pictures.

公开(公告)号：DE602004016661D1

公开(公告)日：2008-10-30

申请号：DE602004016661

申请日：2004-06-16

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： GREINER HORST

IPC: F21S8/00 ,  F21V8/00 ,  F21Y105/00 ,  G09F13/04

Abstract: A luminous body is described, in particular in the form of a planar illumination device for general lighting or for backlighting of displays, wherein the luminous body comprises a plurality of light sources arranged in a housing (1) such as, for example, LED elements (3, 5). The luminous body is remarkable in that the light of the light sources is radiated at least substantially in a direction parallel to a light emission surface (6) of the housing (1), while the inner walls of the housing (1) reflect the light at least partly. Not only does this render it possible to achieve a very homogeneous light distribution on the light emission surface (6) also in the case of a small constructional height of the luminous body, but the fact that no optical waveguide plate is required in the housing (1) also provides advantages in the form of a simple manufacture and low cost.