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1. 发明专利

JP2000225277A RADIO-CONTROLLED HELICOPTER 失效
公开(公告)号：JP2000225277A
公开(公告)日：2000-08-15
申请号：JP2850699
申请日：1999-02-05
申请人： FUTABA DENSHI KOGYO KK
发明人： ISHIKAWA SHIZUO , YAMAMOTO MITSUO , KONO NOBORU
IPC分类号： A63H27/133 , A63H30/04 , B64C13/20 , B64C27/54 , B64C27/605
摘要： PROBLEM TO BE SOLVED: To operate a swash plate corresponding to the operation on a manipulator side. SOLUTION: Based on an isosceles triangle whose bottom edge and height are equal to each other, control points A, B and C are respectively provided at its respective angle parts and the respective points A, B and C are respectively connected with a servo device. A surface arranged on the axis Z of a rotary shaft 2 with respect to the center of the height of the isosceles triangle and formed of respective control points A, B and C is provided with a variable point O forming sliding operation along the axis Z and tilting operation to the axis Z. Thus, in the case of tilting the surface consisting of the respective points A, B and C with an axis X or an axis Y, distances to the point O from the respective points A, B and C are equalized. Thus, it becomes possible to move the respective points A, B and C by the same quantity with the point O in a center and another operation where the point O is slid along the axis Z no longer coexists. Thus, the flying operation of a radio-controlled helicopter can be executed corresponding to the operation quantity of the servo device by the operation on the manipulator side.

2. 发明专利

JPH11324702A DEVICE AND METHOD FOR CONTROLLING MODEL ENGINE 失效
公开(公告)号：JPH11324702A
公开(公告)日：1999-11-26
申请号：JP13350598
申请日：1998-05-15
申请人： FUTABA DENSHI KOGYO KK
发明人： MATSUDA NORIO , YAMAMOTO MITSUO , TANAKA KAZUYUKI
IPC分类号： A63H29/00 , F02B75/02 , F02B75/34 , F02D31/00 , F02D41/14 , F02D41/34 , F02D45/00 , F02M37/12
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling a model engine, which can secure stability of operation by sufficiently throttling fuel at the time of low speed rotation. SOLUTION: Injection time generating means 60 generates fuel injection time according to a fuel amount per one cycle required for the driving of an engine. Intermittent injection judging means 61 judges whether or not the injection time is less than the minimum injection time which can be controlled in a fuel injection device 50. When judged that it is less than it, intermittent injection data selecting means 62 selects intermittent injection data corresponding to the injection time from intermittent injection data table 65 that equivalence between of injection time and intermittent injection data is set. Fuel is intermittently ejected to the fuel injection device 50 within injection time which can be controlled, based on the selected intermittent injection data and a timing signal from injection timing generating means 66. Stability at the time of low speed rotation is improved. Fuel can be sufficiently throttled at a low speed, therefore fuel may not be excessive and response to sudden acceleration is improved.

3. 发明专利

JPH09218716A ELECTRONIC GOVERNOR DEVICE FOR MODEL 失效
公开(公告)号：JPH09218716A
公开(公告)日：1997-08-19
申请号：JP4841496
申请日：1996-02-13
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAMOTO MITSUO
IPC分类号： A63H27/24 , G05D13/62
摘要： PROBLEM TO BE SOLVED: To improve the responsiveness of an electronic governor and to display the number of revolutions. SOLUTION: A pulse signal having a frequency commanded to the number of revolution of an engine for model is inputted from a revolution number pick up 3 to a governor control part 1. Then, the number of revolution of the engine is measured by operating the inverse of the period of the rotary pulse. The measured value is compared with the number of revolution, which is set, and an error signal is obtained. Then, a servo motor control signal is outputted to an engine control actuator 6. Thus, a throttle is adjusted, and the number of revolution of the engine is maintained to the number of revolution, which is set. Measured data on the number of revolution is displayed on a display part 5 and an operator can learn the number of revolution of the engine.

4. 发明专利

JPH0953429A MODELING GLOW ENGINE AND CONTROLLER THEREOF 失效
公开(公告)号：JPH0953429A
公开(公告)日：1997-02-25
申请号：JP22275695
申请日：1995-08-09
申请人： FUTABA DENSHI KOGYO KK
发明人： KANETSUNA NOBUMITSU , YAMAMOTO MITSUO
IPC分类号： A63H27/24 , F01L13/08 , F02B9/06 , F02B75/02 , F02B75/34 , F02D13/02 , F02D43/00 , F02N11/08 , F02N11/14 , F02N19/00 , F02N17/08
摘要： PROBLEM TO BE SOLVED: To make improvement in startability by installing an exhaust valve to exhaust compression pressure in a cylinder in an engine, in this modeling glow engine or a type of a hot-bulb engine using such fuel as making methyl alcohol a main ingredient. SOLUTION: When operations are started, first of all, an exhaust valve open signal is outputted to an exhaust valve 20 from a controller 50 and thereby this exhaust valve 20 is opened, while a current-off signal is outputted to a glow plug 2. Next, the drive of a starter motor 40 is started, but at this time, since the exhaust valve 20 is already opened, compression pressure in a cylinder is released, thereby making the motor rotatable with very little torque. In succession, fuel is directly sprayed to the inside of an inlet port 17 from a fuel injection system 30, and an air-fuel ratio of a mixture fed into the cylinder is calculated. In case where this air-fuel ratio is so judged to be optimum, a current-on signal is outputted to the glow plug 2 and simultaneously an exhaust valve close-signal is outputted to the exhaust valve 20, starting an engine.

5. 发明专利

JPH0928937A TRANSMITTER FOR FREQUENCY SYNTHESIZER TYPE RADIO CONTROL AND RADIO CONTROL SYSTEM 失效
公开(公告)号：JPH0928937A
公开(公告)日：1997-02-04
申请号：JP20027995
申请日：1995-07-14
申请人： FUTABA DENSHI KOGYO KK
发明人： KANETSUNA NOBUMITSU , YAMAMOTO MITSUO
IPC分类号： A63H30/04 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To prevent a plurality of operators from transmitting at the same channel in a radio control transmitter. SOLUTION: A high frequency module 10 has a synthesizer type carrier generating section, a modulator, a high frequency amplifier and a scanning receiver inside and a protruded part 11 is provided with a transmitting channel display device 17. The high frequency module 10 is mounted detachable freely at a high frequency module housing part 3 provided on the rear side of the body of a transmitter for radio control. When operation is started, a channel having no signal transmitted thereto is detected by the scanning receiver and frequency information of the channel is set on the frequency synthesizer to start transmission using the channel. At the same time, the channel is shown on a transmission channel display device 17 to notify a transmitting channel now used to other operators in the same field.

6. 发明专利

JP2561232B2 失效
公开(公告)号：JP2561232B2
公开(公告)日：1996-12-04
申请号：JP25350092
申请日：1992-08-31
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAMOTO MITSUO
IPC分类号： H04J13/00 , H04B1/709

7. 发明专利

JPH0685782A SPREAD SPECTRUM RECEIVER AND SPREAD SPECTRUM TRANSMITTER-RECEIVER USING THE RECEIVER 失效
公开(公告)号：JPH0685782A
公开(公告)日：1994-03-25
申请号：JP25350092
申请日：1992-08-31
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAMOTO MITSUO
IPC分类号： H04J13/00 , H04B1/709
摘要： PURPOSE:To obtain the inexpensive receiver with simple configuration by using a super regenerative demodulator for broad band signal reception. CONSTITUTION:A spectrum is spread by a PN code, a sent signal is received by an antenna 11, demodulated by a super regenerative demodulator 13, the same PN code as that whose spectrum is spread is generated and the correlation with the PN code is taken by a correlation device 16, then the signal is decoded into an original base band signal. Thus, the spread spectrum receiver very immune to noise, having high sensitivity and simple configuration is provided at a low cost.

8. 发明专利

JPH062190B2 失效
公开(公告)号：JPH062190B2
公开(公告)日：1994-01-12
申请号：JP9993387
申请日：1987-04-24
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAMOTO MITSUO , SEKYA SATOSHI
IPC分类号： A63H30/04 , A63H30/00 , B41J3/28 , B41J33/22 , B41J33/38 , G06F3/033 , G06F3/038 , H04Q9/00

9. 发明专利

JPH04124926A CORRELATOR 失效
公开(公告)号：JPH04124926A
公开(公告)日：1992-04-24
申请号：JP24383990
申请日：1990-09-17
申请人： FUTABA DENSHI KOGYO KK
发明人： HOSHIKUKI ATSUSHI , YAMAMOTO MITSUO , KONO RYUJI , IMAI HIDEKI
IPC分类号： H04B1/69 , H04B1/7085 , H04J13/00
摘要： PURPOSE:To correctly demodulate transmitted data by detecting the peak of a correlation signal required for demodulating the data by varying a threshold level into an optimum value according to the level of the peak value of the correlation signal. CONSTITUTION:When a threshold level control signal is inputted to threshold detection circuit 4 from a threshold level decision circuit 9, its threshold level Ls (-Ls) is varied and controlled so as to be an optimum level for the peak value detected by a peak detection circuit 6. In case that dispersion arises in detected output waveform because of the variation of the amplitude or the frequency of a modulated transmission signal, and the level of the correlation signal Vo is lowered as a whole, the threshold level Ls (-Ls) is averaged on the basis of a peak detection signal S2 detected at that time, and it is varied and set into the threshold level to meet the level of the correlation signal Vo at that time. Accordingly, the data can correctly be demodualted, and reliability can be improved.

10. 发明专利

JP2862205B2 失效
公开(公告)号：JP2862205B2
公开(公告)日：1999-03-03
申请号：JP17073996
申请日：1996-06-11
申请人： FUTABA DENSHI KOGYO KK
发明人： YAMAMOTO MITSUO
IPC分类号： A63H27/133 , A63H27/24 , F02B75/34 , F02D9/02

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