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29 records (took 0.026 seconds)

    1.
    发明专利
    未知

    公开(公告)号：FR2610463A1

    公开(公告)日：1988-08-05

    申请号：FR8801201

    申请日：1988-02-02

    Applicant: FUJITSU LTD ,  KOKUSAI DENSHIN DENWA CO LTD ,  NEC CORP

    Inventor： INOUE YOSHIYUKI ,  TAKAHASHI MASAAKI ,  TATEKURA KOICHI ,  NISHIKAWA HITOSHI ,  HAJIME

    IPC: H04B3/44

    Abstract: A transmission line between terminals of a three-terminal station is branched by a branching unit and power is transmitted between the terminals of the three-terminal station and a power feed system in the transmission line including: a switch for switching a power feed line feeding power to a repeater between a both-end power feed mode and a single-end power feed mode; and connection holding means for holding a power feed connection state without change upon an occurrence of a failure.

    5.
    发明专利
    未知

    公开(公告)号：FR2610463B1

    公开(公告)日：1990-12-07

    申请号：FR8801201

    申请日：1988-02-02

    Applicant: FUJITSU LTD ,  KOKUSAI DENSHIN DENWA CO LTD ,  NEC CORP

    Inventor： INOUE YOSHIYUKI ,  TAKAHASHI MASAAKI ,  TATEKURA KOICHI ,  NISHIKAWA HITOSHI ,  HAJIME

    IPC: H04B3/44

    Abstract: A transmission line between terminals of a three-terminal station is branched by a branching unit and power is transmitted between the terminals of the three-terminal station and a power feed system in the transmission line including: a switch for switching a power feed line feeding power to a repeater between a both-end power feed mode and a single-end power feed mode; and connection holding means for holding a power feed connection state without change upon an occurrence of a failure.

    7.
    发明专利
    失效

    公开(公告)号：JPH05242817A

    公开(公告)日：1993-09-21

    申请号：JP9897392

    申请日：1992-02-28

    Applicant: NEC CORP

    Inventor： TAKAHASHI MASAAKI

    IPC: H01J23/26

    Abstract: PURPOSE:To provide an extremely wide band frequency characteristics without using metal pieces or metal plates inside a helix shell by providing a stepped part at one side or both sides of a dielectric strut for supporting a helix and subjecting it to a metal plating. CONSTITUTION:A helix 1 is combined with a dielectric strut 6 consisting of a dielectric such as beryllia ceramics and containing steps on its both sides, and is inserted inside a helix shell 3. The phase velocity and the change rate of the coupling impedance between an electron beam and a microwave relative to a frequency in a helix circuit can be reduced by subjecting the dashed line part of the strut 6 to a metal plating, which serves similarly as that of a conventional T shaped metal plate, so that extremely wide band frequency characteristics can be provided.

    PILLBOX TYPE VACUUM WINDOW
    8.
    发明专利
    PILLBOX TYPE VACUUM WINDOW 失效

    公开(公告)号：JPH0492341A

    公开(公告)日：1992-03-25

    申请号：JP20993090

    申请日：1990-08-08

    Applicant: NEC CORP

    Inventor： TAKAHASHI MASAAKI

    IPC: H01J23/12 ,  H01J23/36 ,  H01J23/40 ,  H01P1/08

    Abstract: PURPOSE:To realize a wide area of voltage standing wave ratio (VSWR) by making the inner radius of a cylindrical hollow and the long side of a square waveguide which compose a pillbox in a relation to satisfy a specific condition. CONSTITUTION:By making the inner radius R of a cylindrical hollow to compose the pillbox 1 of a pillbox type vacuum window and the long side (a) of a square waveguide 2 connected to both sides of the pill-box 1, in the relation to satisfy the formula I R

    CALLING SYSTEM FOR PROGRAM PARTS
    9.
    发明专利
    CALLING SYSTEM FOR PROGRAM PARTS 失效

    公开(公告)号：JPS62241032A

    公开(公告)日：1987-10-21

    申请号：JP8373286

    申请日：1986-04-11

    Applicant: NEC CORP

    Inventor： TAKAHASHI MASAAKI

    IPC: G06F9/06 ,  G06F9/44 ,  G06F9/45

    Abstract: PURPOSE:To instruct assembling of parts with use of an integrated parts calling sentence without being conscious of the parts packing forms, by providing a parts description/parts packing form discriminating part, a packing form-based source text generating part, a parts incorporation merging part, etc. CONSTITUTION:An input source program 1 is supplied to a parts calling sentence discriminating part 4 via a source program reading part 3. Then a parts calling sentence is detected and sent to a parts control information reading part 5. The part 5 retrieves the parts description 2 based on the parts signal and sends the result of his retrieval to a parts packing form discriminating part 6. The part 6 sends the form-based signals to a parts packing form-based source text generating part 7 and also starts a parts processing description reading part 8. Then the part 7 produces a source text needed for parts assembly and an output source program 11 is outputted after assembling parts via a parts incorporation merging part 9 and a source program compiling part 10. Thus it is possible to indicate the assembling of parts by means of an integrated parts calling sentence regardless of the parts packing forms.

    FEEDER BRANCHING CIRCUIT
    10.
    发明专利
    FEEDER BRANCHING CIRCUIT 失效

    公开(公告)号：JPS62198228A

    公开(公告)日：1987-09-01

    申请号：JP4110486

    申请日：1986-02-25

    Applicant: KOKUSAI DENSHIN DENWA CO LTD ,  NEC CORP ,  FUJITSU LTD

    Inventor： NIINO YASUHIKO ,  WAKABAYASHI HIROHARU ,  YANO HIROAKI ,  HARAFUJI YOSHIHIKO ,  UMETSU TATSUO ,  TAKAHASHI MASAAKI ,  SAITO KOICHI

    IPC: H04B3/44

    Abstract: PURPOSE:To attain the communication using remaining two branches even if one branch has a fault among three branches among each ground terminal station and branch devices by combining 2 control means and 4 switch means. CONSTITUTION:A switch circuit S0 connects a break contact B1 between control sections W2 and W3, a switch circuit S1 does not ground a terminal 11 when no current flows and grounds the terminal 11 when a current flowing to the control sections W2, W3 exceeds a sending current limit. A switch circuit S2 grounds a terminal 12 when a current flowing to the control section W3 exceeds the sensing current. Further, a switch circuit S3 grounds a terminal 13 when the current flows through the control sections W1, W2 exceeds the sensing limit.

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