Title:
計算機式断層写真システムにおける高データ速度通信用の電力コンバイナを用いた伝送線路
Document Type and Number:
Japanese Patent JP3693348
Kind Code:
B2
Abstract:
A computerized tomography (CT) system includes a stationary frame, an annular rotating frame and apparatus that includes a phase splitter for supplying first and second modulated carrier constituents being 180 DEG out-of-phase between one another while maintaining a uniform amplitude over the bandwidth for the modulated carrier. A transmission line is attached to the rotating frame and is positioned around the annular rotating frame. The transmission line comprises individual segments having first and second conductors respectively coupled to the he phase splitter to receive the first and second modulated carrier constituents. A coupler is attached to the stationary frame and is positioned sufficiently near the transmission line for establishing radio coupling therebetween to receive the first and second modulated carrier constituents being applied to any individual segment. The apparatus further includes a power combiner having first and second input ports for receiving the first and second modulated carrier constituents supplied by the coupler. The power combiner is designed for combining the 180 DEG out-of-phase first and second modulated carriers to form a combined modulated carrier supplied through an output port of the power combiner. The power combiner preferably includes matching resistors for cancelling any in-phase input signals which can be received through the first and second input ports of the power combiner due to externally-generated electromagnetic interference.
Inventors:
Harrison, Daniel David
Application Number:
JP52855696A
Publication Date:
September 07, 2005
Filing Date:
March 19, 1996
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
A61B6/00; A61B6/03; (IPC1-7): A61B6/03
Domestic Patent References:
| JP5237085A | ||||
| JP8224233A | ||||
| JP2262728A | ||||
| JP2262727A |
Foreign References:
| US5530422 |
Attorney, Agent or Firm:
Kenichi Matsumoto