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1. 发明专利

JP2001106196A SPACE-EXPANSION STRUCTURE 失效
公开(公告)号：JP2001106196A
公开(公告)日：2001-04-17
申请号：JP28432999
申请日：1999-10-05
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIKAWA HIROCHIKA , SENBOKUTANI YUMI , NAKASUGA YOSHINORI , MIYASAKA AKIHIRO , TSUNODA HIROAKI
IPC分类号： B64G1/22 , B64G1/44 , B64G1/66 , H01Q1/08 , H01Q1/28
摘要： PROBLEM TO BE SOLVED: To provide a space-expansion structure capable of forming a two- dimensionally expanded plane without impairing the profile irregularity of films by arranging inflatable tubes in lattice or radially. SOLUTION: This space-expansion structure comprises plural easily- deformable films 4, inflatable tubes 5 arranged in lattice for connecting the two-dimensionally arranged films 4, and a cylinder mounted on one end of the inflatable tube 5 or a cylinder 6 comprising a flow rate control mechanism, and the structure is folded in a state the inflatable tubes 5 as folds are in parallel with each other, and then totally cylindrically rounded to be accommodated, so that it can be two-dimensionally expanded when a gas is charged from the cylinder 6.

2. 发明专利

JP2001088799A FLAT SURFACE DEVELOPING SPACE STRUCTURE 失效
公开(公告)号：JP2001088799A
公开(公告)日：2001-04-03
申请号：JP27068199
申请日：1999-09-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TSUNODA HIROAKI , SENBOKUTANI YUMI , ISHIKAWA HIROCHIKA , NAKASUGA YOSHINORI , MIYASAKA AKIHIRO
IPC分类号： B64G1/22 , B64G1/44 , B64G1/66 , H01Q1/08 , H01Q1/28
摘要： PROBLEM TO BE SOLVED: To provide a developing structure for space capable of corresponding to enlargement. SOLUTION: This flat surface developing space structure has a plural number of panels 20 connected only in one rectilinear direction and contacted at the time of storage, a plural number of films connected to each other in a direction roughly orthogonal with the rectilinear direction and stored in the panels 20 at the time of storage, a panel developing driving means to develop a plural number of the panels in the rectilinear direction and an extending driving means to extend the films in a direction roughly orthogonal with the one rectilinear direction and to form a flat surface two dimensionally developed by extending the film stored in the panels after developing the panels from a storage state.

3. 发明专利

JPH0759152A RADIO STATION EQUIPMENT FOR MULTI-BEAM RADIO COMMUNICATION 失效
公开(公告)号：JPH0759152A
公开(公告)日：1995-03-03
申请号：JP19979393
申请日：1993-08-11
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HORIKAWA KOJI , NAKASUGA YOSHINORI
IPC分类号： H04B7/185 , H04Q7/36
摘要： PURPOSE:To allow the equipment to flexibly cope with fluctuation in a traffic distribution between beams by executing scan control in which plural beams are simultaneously overlapped to a service area having many traffic requests. CONSTITUTION:An antenna of an earth station 10 and a reception antenna 21 of a radio station are connected via a feeder link 11 and a received signal is divided into plural unit frequency bands at a narrow band filter band 23b via a reception section 22. A signal of each unit frequency band is converted into a transmission frequency by a frequency conversion section 24, a beam is formed for each frequency band by a multi-beam generating circuit 29 and transmitted to a transmission antenna 26b. Then the number of beams emitted from the transmission antenna 26b is increased more than the number of service areas 13 and each beam is independently scanned. Furthermore, plural beams generated by the multi-beam generating circuit 29 are emitted to each service area 13. Thus, the combination of overlapped beams is changed depending on the traffic.

4. 发明专利

JP2002261671A METHOD FOR DIRECTLY CONNECTING USER STATIONS, SYSTEM FOR DIRECTLY CONNECTING USER STATIONS, AND SATELLITE STATION 失效
公开(公告)号：JP2002261671A
公开(公告)日：2002-09-13
申请号：JP2001056745
申请日：2001-03-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KATAOKA NOBUYUKI , EBINA KAZUHITO , NAKASUGA YOSHINORI , YAMASHITA FUMIHIRO , UEHA MASAZUMI
IPC分类号： H04B7/15 , H04B7/185
摘要： PROBLEM TO BE SOLVED: To provide a system in which an information signal goes through a satellite only once in communication between user stations via a satellite. SOLUTION: In a satellite communication method which is covered by multiple beams, has only one base station existing in a service area thereof, and is performed by a through repeater satellite 36, the base station 30 assigns a wireless channel for control that is made to be common with a wireless channel for communication to each user station 32, and the user station continuously transmits frames comprised of a information signal and a control signal. The wireless channel for communication is branched in two ways, and transmitted to a user station on the other end connection 34 and to the base station 30 respectively. The user station on the other end connection 34 extracts the information signal, while the base station 30 extracts the control signal. The base station 30 transmits a frame comprised of the control signal, while each user station extracts a frame addressed to its own station, thus making it possible to perform transmission/reception of the control signal between user station and the base station with the information signal going through the satellite 36 only once.

5. 发明专利

JP2001097290A INFLATABLE TUBE 失效
公开(公告)号：JP2001097290A
公开(公告)日：2001-04-10
申请号：JP28163899
申请日：1999-10-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIKAWA HIROCHIKA , SENBOKUTANI YUMI , NAKASUGA YOSHINORI , MIYASAKA AKIHIRO , TSUNODA HIROAKI
IPC分类号： B64G1/22 , E04C3/00
摘要： PROBLEM TO BE SOLVED: To provide an inflatable tube capable of being smoothly expanded without a risk of preventing an inflating operation that the tube is bent at the time of expansion and a risk of rupture of the tube. SOLUTION: An inflator tube stored folded or rounded, and inflated by allowing gas to be flown from one end of the tube 1 so as to expand by the pressure and form a cylindrical bar, comprises a tube 1 formed in a cylindrical shape in expanded condition, a cylindrical films 2 (allowing gas to pass with a specified resistance) located in the tube 1, sharing an axis with the tube 1, and having different radii, and a cylinder 3 installed to one end of the tube 1 and having a blowing port provided in a film 21 with minimum radius. A gas flows from the cylinder 3 to the film 21 with minimum radius and, when spaces 4 partitioned by the films 2 are pressurized to a specified pressure or more, then the gas flows into a space partitioned by the film with minimum radius. Thus, the expansion of the tube in radial direction is performed after its expansion in axial direction is generally completed.

6. 发明专利

JPH0961651A HYBRID OPTICAL INTEGRATED CIRCUIT 失效
公开(公告)号：JPH0961651A
公开(公告)日：1997-03-07
申请号：JP15224796
申请日：1996-06-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： YAMADA YASUBUMI , HIBINO YOSHINORI , YANAGISAWA MASAHIRO , ISHIBASHI SHIGEKI , TERUI HIROSHI , NAKASUGA YOSHINORI , HASHIMOTO TOSHIKAZU
IPC分类号： G02B6/42 , G02B6/122
摘要： PROBLEM TO BE SOLVED: To provide a hybrid optical integrated circuit provided with the structure that attains an inexpensive sealing with superior dumpproofing. SOLUTION: A cut part 23 is formed by etching and removing part of an embedded optical waveguide 22 having a flat top so that the bottom surface becomes rectangular, an electrode pattern 24 is provided on the bottom surface 23a to mount a semiconductor laser 25, and the electrode pattern 24, the semiconductor laser 25, and electric wiring pattern 26 and 27 provided on the surface of an upper clad layer 22c are electrically connected; and a sealing cover 28 is fixed on the upper clad layer 22 across resin 29 while covering the cut part 23 to seal the semiconductor laser 25, thereby sealing the semiconductor laser 25 locally and airtightly.

7. 发明专利

JPH0787029A MICROWAVE CIRCUIT 失效
公开(公告)号：JPH0787029A
公开(公告)日：1995-03-31
申请号：JP22901693
申请日：1993-09-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKASUGA YOSHINORI , HORIKAWA KOJI , OGAWA HIROTSUGU
IPC分类号： H03D7/00 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04B10/28 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26
摘要： PURPOSE:To obtain the signal in which each undesired input microwave frequency component is suppressed by providing a multiplexer multiplexing outputted microwaves from plural photodetectors in phase or in opposite phase so as to obtain a frequency multiplexer. CONSTITUTION:Two microwaves outputted from an in-phase/opposite phase distributer 3-1 which branches a microwave RF1 whose frequency is f1 into two and provides an output of them in in-phase or opposite phase are respectively inputted to optical modulators 5a, 5b at a pre-stage of optical modulators connected in cascade, from which the modulated lights modulated in opposite phase to each other are outputted by adjusting a bias of each optical modulator. On the other and, two microwaves outputted from an in-phase/opposite phase distributer 3-2 which branches a microwave RF2 whose frequency is f2 into two and provides an output of them in in-phase or opposite phase are respectively inputted to optical modulators 5c, 5d at a post-stage of optical modulators connected in cascade, a bias is adjusted so that modulated lights outputted from the pre-stage are modulated in opposite phase, the lights are modulated multiplexedly, each modulation light is detected by photodetectors 6a, 6b and output microwaves are multiplexed in in-phase or opposite phase by an in-phase/ opposite phase multiplexer 4.

8. 发明专利

JPH0720414A OPTICAL CIRCUIT 失效
公开(公告)号：JPH0720414A
公开(公告)日：1995-01-24
申请号：JP16433393
申请日：1993-07-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKASUGA YOSHINORI , HORIKAWA KOJI , OGAWA HIROTSUGU
IPC分类号： G02F1/035 , G02F2/02
摘要： PURPOSE:To eliminate deterioration in high frequency characteristics and increase the flexibility of electrode design by providing a high frequency circuit together with a high frequency line having an electrode, formed on the same substrate with an optical waveguide, along the optical waveguide. CONSTITUTION:When a modulating signal omega is inputted as an input signal to a 3dB90 deg. hybrid 4, it is branched into two orthogonal modulating signals omega, which are inputted to Mach-Zehnder type light intensity modulators 1 and 2 respectively. An input light omega inputted to an optical distributor 3, on the other hand, is branched here into two; and one is inputted to the light intensity modulator 1 as it is and the other is inputted to the light intensity modulator 2 through a pi/2 phase shifter 5. The light intensity modulators 1 and 2 are applied with different electric fields with the two orthogonal modulating signals omega, and consequently intensity modulation is imposed on the respective input lights omega. Then the intensity-modulated light is multiplexed by an optical multiplexer 6 and outputted as an output light OMEGA-omega.

9. 发明专利

JP2001244752A DISTORTION COMPENSATING CIRCUIT 失效
公开(公告)号：JP2001244752A
公开(公告)日：2001-09-07
申请号：JP2000051530
申请日：2000-02-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAHO TAKANA , OKAZAKI KOJI , NAKASUGA YOSHINORI , HORIKAWA KOJI , ARAKI KATSUHIKO
IPC分类号： H03C1/36 , H03F1/32 , H03F3/24 , H04B1/04
摘要： PROBLEM TO BE SOLVED: To provide a distortion compensation circuit that gains efficient signal amplification by increasing an operating point of a high-output amplifier of a wireless transmitter requiring common amplification of signals. SOLUTION: Signals of output ports #2, #4 of a distributor 01 receiving wireless signals are respectively given to mixers MIX-A, MIX-B, the signal of an output port #3 is given to a distortion adjustment means, that has an even number product generating means that generates at least one even product nonlinear distortion having at least either of a base frequency component and a double frequency component, an amplitude phase control means that optionally adjusts amplitude and phase, and a distribution means that distributes a signal into two with an optional phase difference, the two output signals are respectively given to the mixers MIX-A, MIX-B, the respective output signals are given to a multiplexer 02, and a multiplexer 01 multiplexes a signal of the output port #1 of the distributor 01 and an output signal from the synthesizer 02 and provides an output of the synthesized signal.

10. 发明专利

JPH10102034A HEAT-RADIATING SURFACE TREATMENT 失效
公开(公告)号：JPH10102034A
公开(公告)日：1998-04-21
申请号：JP27690996
申请日：1996-09-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIYASAKA AKIHIRO , NAKASUGA YOSHINORI
IPC分类号： C09K3/00 , C08G73/10
摘要： PROBLEM TO BE SOLVED: To make possible lightweight construction of a structure that receives solar radiation without deterioration of surface characteristics of the structure and enables heat control members on its surface to be thinly laid by spattering and spin coating as surface treatment. SOLUTION: This heat-dissipative surface treatment comprises laying a metal, preferably aluminum, of low solar radiation absorptivity on a surface of a member 5 by spattering, and further laying a material, preferably polyimide, that has a large solar transmission and a large infrared radiation on the surface, thus enabling weight reduction by one tenth to one twentieth as compared with the case where white paint is used when the thickness of the aluminum is assumed to be 1μm and that of the polyimide to be 10μm.

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