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81. 发明专利

JP2001086236A METHOD AND DEVICE FOR TESTING KEY TELEPHONE SET 失效
公开(公告)号：JP2001086236A
公开(公告)日：2001-03-30
申请号：JP25813599
申请日：1999-09-13
申请人： IWATSU ELECTRIC CO LTD
发明人： TSUZUKI AKIO
IPC分类号： G01R31/02 , H04M3/24 , H04M3/26 , H04Q3/545 , H04Q3/58
摘要： PROBLEM TO BE SOLVED: To prevent the possibility of causing wrong operation because the test of a key telephone set requires much labor and time and at times may need manual operation, visual confirmation and audible confirmation or the like at the same time. SOLUTION: A test device 1 is provided with a script storage section 2, that stores a message denoting contents of a test and its procedure and a message processing section 3, that reads this message and conducts processing according to the message. The test device transmits a command to a bus 30 at a side of a key telephone master set 20 connected to telephone sets 25, 26 and receives its reply to test the master set 20. By having only to read and execute the script, one can realize unattended the testing of the key telephone set which was conventionally conducted manually. As a result, the test can be realized efficiently and accurately.

82. 发明专利

JP2001068936A ARTIFICIAL NOISE GENERATOR 失效
公开(公告)号：JP2001068936A
公开(公告)日：2001-03-16
申请号：JP24518399
申请日：1999-08-31
申请人： KANKYO DENJI GIJUTSU KENKYUSHO , IWATSU ELECTRIC CO LTD
发明人： YAMANE KOJI , SHINOZUKA TAKASHI , SETOGUCHI KAORU
IPC分类号： H03B29/00 , G01R31/28 , G06F7/58 , G06F19/00
摘要： PROBLEM TO BE SOLVED: To specify the amplitude probability distribution of noise and to simultaneously specify the pulse width distribution and the pulse interval distribution at a specified amplitude level by providing an arbitrary distribution random number generation part corresponding to the divided amplitude probability distributions. SOLUTION: An arbitrary distribution random number generator 100 is used for exclusively generating a signal x1 according to apd1(x1) and a signal x2 according to tpd2(x2). A signal i1 according to pdd(i1) is generated by an arbitrary random number generator 200 and during time Ti1 corresponding to i1, the signal x1 according to apd1(x1) is continuously generated by the arbitrary random number generator 100. Afterwards, a signal i2 according to psd(i2) is generated by the arbitrary random number generator 200 and during time Ti2 corresponding to i2, the signal x2 according to apd2(x2) is continuously generated by the arbitrary random number generator 100. These adp1(x1) and adp2(x2) and these pdd(i1) and psd(i2) are switched by a signal (s) from a selector SL.

83. 发明专利

JP2000313176A LITHOGRAPHIC PRINTING PLATE 失效
公开(公告)号：JP2000313176A
公开(公告)日：2000-11-14
申请号：JP12422499
申请日：1999-04-30
申请人： IWATSU ELECTRIC CO LTD , KITAMURA KOJI
发明人： MORI SAORI , MOMOTAKE ISATO , AOBA KAZUMI , HIRANO TAKAFUMI , KITAMURA KOJI
IPC分类号： G03F7/11 , B41M5/26 , B41N1/14 , G03F7/00
摘要： PROBLEM TO BE SOLVED: To obtain a lithographic printing plate which can laser record with a low cost, high sensitivity and easy handling without necessity of developing by providing a porous layer on a support, and impregnating the layer with a surface layer melted by a heating effect of a photothermal conversion layer. SOLUTION: A porous layer 2, a photothermal conversion layer 3 and a surface layer 4 are sequentially provided on a support 1 or the porous layer and the surface layer used also as the photothermal conversion layer are sequentially provided on the support to form the lithographic printing plate. Here, the porous layer is formed by coating the support with a dispersing substance obtained by dispersing granular or powder-like substance in a relatively little binder polymer. As the material of the porous layer, a material having good wettability with a surface layer dissolving liquid is used. A particle size of the substance is preferably in a range of 0.01 to 10 μm. Further, a thickness of the layer 2 is set to a range of 2 to 100 μm, and a void fraction of the layer 2 is set to a range of 10 to 70%. Thus, the lithographic printing plate which can laser record and has high sensitivity and unnecessity of developing can be obtained.

84. 发明专利

JP2000117343A PRODUCTION OF PLATE LIKE PART 失效
公开(公告)号：JP2000117343A
公开(公告)日：2000-04-25
申请号：JP31403798
申请日：1998-10-16
申请人： IWATSU ELECTRIC CO LTD , FUKUSHIMA IWATSUU KK
发明人： SUDO FUMIO
IPC分类号： B21D28/10
摘要： PROBLEM TO BE SOLVED: To obtain a production method of a plate like part in which joining a wire joint for a plate like part and a peripheral frame is strengthened, a required external form line is obtained by cutting off with a cutting tool of a nipper, etc., a number of the wire joints to be cut is reduced and a wire joint width is easily changed by changing a NC program. SOLUTION: In a production method in which many plate like parts 2 partially joined with plural wire joints respectively for a peripheral frame 6 is punched on a surface of a metal plate base material, the wire joints 5, which join the external shape line except corner parts/radius shaped parts of each the plate like part 2b and the peripheral frame 6, and the roof type inclined opening, in which part is positioned inside the external shape line of each plate like part, a narrow connection part width formed near the wire joint 5 remains and one of a roof type inclined face part is interposed to the corresponding wire joint, are provided, the part from the external shape line of the corresponding plate like part to the roof type opening 3 is cut.

85. 发明专利

JP2000101548A RECEIVER FOR SPREAD SPECTRUM COMMUNICATION WAVE 失效
公开(公告)号：JP2000101548A
公开(公告)日：2000-04-07
申请号：JP26417498
申请日：1998-09-18
申请人： IWATSU ELECTRIC CO LTD
发明人： FUJIMOTO ATSUSHI , SHINOHARA MASARU
IPC分类号： H04J13/00 , H04B1/7107 , H04L1/02 , H04J13/04
摘要： PROBLEM TO BE SOLVED: To enlarge a code multiplex number while hardly causing quality degradation due to cross correlation and to perform high-speed transmission of high quality by performing demodulation after reducing the cross correlation generated by code multiplex. SOLUTION: Detected signals are stored only for a fixed period, the estimated value of the cross correlation is obtained from the stored detection signals and past decoding data and signals for which the estimated value of the cross correlation is subtracted from the detection signals are decoded. The suppression processing of the cross correlation is performed in a detection signal cross correlation suppression circuit 8. A detected signal I component 57, a detected signal Q component 58, a demodulation data I component 59 and a demodulation data Q component 60 are impressed to the detected signal cross correlation suppression circuit 8 and a cross correlation suppression detection signal I component 62 and a cross correlation suppressed detected signal Q component 63 are outputted. The suppression processing of the cross correlation is independent for the I component and the Q component and is realized by the circuit of the same constitution. Thus, the cross correlation generated by the code multiplex is reduced and the high-speed transmission of the high quality is made possible.

86. 发明专利

JP2000084630A MACHINING METHOD FOR PLATELIKE FITTING PARTS 失效
公开(公告)号：JP2000084630A
公开(公告)日：2000-03-28
申请号：JP27651398
申请日：1998-09-11
申请人： IWATSU ELECTRIC CO LTD , FUKUSHIMA IWATSUU KK
发明人： SUDO FUMIO
IPC分类号： B21D35/00 , B21D28/10 , B21D53/36
摘要： PROBLEM TO BE SOLVED: To obtain a machining method for platelike fitting parts in which a drilling process of a fitting hole for the platelike fitting parts can be omitted. SOLUTION: In a platelike fitting parts in which an intermediate stock plate 1A which is partially coupled with a peripheral frame 6 through a plurality of wire joints 5 is punched on the surface of a metal sheet base material and at least one fitting hole is formed in the intermediate stock plate separated from the peripheral frame 6, a part of the platelike fitting parts close to the fitting hole is connected to the peripheral frame 6 through the fitting part wire joint 5A, a keyholelike punched hole 2A having a fitting hole therein is formed oppositely to the fitting part wire joint 5A, the length of a side 2a corresponding to the keyholelike punched hole 2A is made smaller than the width of the corresponding fitting part wire joint 5A and a part from a contour line 1d of the platelike fitting parts to both sides of the keyholelike punched hole 2A is cut off.

87. 发明专利

JP2000084618A METHOD FOR WORKING PLANAR BENDED PARTS 失效
公开(公告)号：JP2000084618A
公开(公告)日：2000-03-28
申请号：JP27651298
申请日：1998-09-11
申请人： IWATSU ELECTRIC CO LTD , FUKUSHIMA IWATSUU KK
发明人： SUDO FUMIO
IPC分类号： B21D28/10 , B21D5/01
摘要： PROBLEM TO BE SOLVED: To obtain products without projections such as round edges by bending in a bended part without necessitating finishing work by connecting the position equivalent to a bending line of each bended parts and a peripheral frame with bending-part wire joints and providing bending-part punched holes facing these joints. SOLUTION: An intermediate blank plate 3 is respectively supported to the peripheral frame 6 with the plural wire joints 5 on which the joint-part punched holes 2 are provided. The intermediate blank plate 3 and peripheral frame 6 are joined with the bending-part wire joints 5A situated on the bending lines X, Y and the bending-part punched holes 2A are respectively provided on the bending-part wire joints 5A. The round edges by bending in both end parts of each bending lines X, Y are situated in equivalent bending-part punched holes 2A and the round edges by bending are prevented from projecting outside the visible outline of the planar bended parts. Failure of assembly with other parts and scratching the surface of other parts caused by the projection of the round edge by bending are prevented.

88. 发明专利

JP2990718B2 METHOD AND DEVICE FOR RECORDING GRADATION ON MAGNETIC IMAGE PRINTER 失效
公开(公告)号：JP2990718B2
公开(公告)日：1999-12-13
申请号：JP1490
申请日：1990-01-04
申请人： IWATSU ELECTRIC CO LTD
发明人： KOKAJI TOKUO
IPC分类号： G03G19/00 , B41J2/42 , G11B5/02 , H04N1/27

89. 发明专利

JPH11258273A ATTENUATOR FOR HIGH-VOLTAGE PROBE 失效
公开(公告)号：JPH11258273A
公开(公告)日：1999-09-24
申请号：JP7495098
申请日：1998-03-09
申请人： IWATSU ELECTRIC CO LTD
发明人： YOSHIDA KIKUTADA , TAKANO YASUSHI
IPC分类号： G01R13/20
摘要： PROBLEM TO BE SOLVED: To obtain an attenuator for a high-voltage probe with a wide band and high accuracy. SOLUTION: An input terminal 1 such as an oscilloscope is set to the output terminal of a probe, and n series impedance is provided between the output terminal and an input terminal 2 of the probe. In the series impedance, a resistor Rk is connected to a capacitance Ck in parallel (k=1-n). A point Pk-1 of the output side of each series impedance is grounded by a shunt capacitance Ck-1 . When the side of the terminal 1 is seen from the pointk-1 , a constant is set so that it is equal to Ck Rk , thus setting the transfer function between the terminals 2 and 1 to a real number regardless of a frequency and hence providing an attenuator with an extremely wide band. The divided resistor Rk and the capacitance Ck can be accurately manufactured.

90. 发明专利

JPH11146046A STRUCTURE OF EXTERNAL CONNECTION SECTION FOR PORTABLE TELEPHONE SET 失效
公开(公告)号：JPH11146046A
公开(公告)日：1999-05-28
申请号：JP32232097
申请日：1997-11-07
申请人： IWATSU ELECTRIC CO LTD
发明人： TSURUMAKI NAOKI
IPC分类号： H01R13/52 , H04B7/26 , H04M1/00 , H04M1/02 , H04M1/21 , H04M1/738 , H04W92/08 , H04Q7/32
摘要： PROBLEM TO BE SOLVED: To obtain the structure of an external connection section of a portable telephone set in which the possibility of a dust-proof cover being destroyed or missing of the cover during its use is precluded and a massive sense is obtained without a sense of incongruity. SOLUTION: A plug insert port 7 of an external connection connector 5 integrated in the inside of telephone set cases 1A (1B) is covered by a dust-proof member 8 that is capable of opening/closing. In this case, a mount plate piece 8b and a plate shield cover 8c that are bent around a thin hinge 8a are integrally made of a hard synthetic resin material, the mount piece 8b is clamped and fixed at one of the plug insert port 7, and an end face of the shield cover 8c is pressed to the inner face of the plug insert port 7 and fixed with a bending reaction of the thin hinge 8a.

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