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1. 发明专利

JP2002368545A Method for measures against noise in electronic circuit and electronic substrate 审中-公开
标题翻译：电子电路和电子基板噪声对策方法
公开(公告)号：JP2002368545A
公开(公告)日：2002-12-20
申请号：JP2001171264
申请日：2001-06-06
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： SHINTANI HIROYUKI , TOUTO TOSHIHIRO
IPC分类号： H05K1/02 , H03F1/26
摘要： PROBLEM TO BE SOLVED: To reduce the influence of high frequency noise with a simple configuration.
SOLUTION: In an electronic circuit 11, a power IC 12 comprising an amplifier 13 performs grounding for a small signal in a pre-amplifier, etc., through the use of a small signal grounding terminal 14 independently of a grounding connection terminal 15 for another part. In a state where the power IC 12 is mounted on an electronic substrate, the small signal grounding terminal 14 is connected to a common grounding point 16 via a small signal grounding wiring pattern 27 from a small signal grounding terminal mounting area 24 so that one-point grounding is performed. High frequency noise is bypassed by a capacitor 17, between the small signal grounding terminal 14 and the grounding connection terminal 15.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：以简单的配置减少高频噪声的影响。解决方案：在电子电路11中，包括放大器13的电力IC 12通过使用小信号接地端子14来独立于接地连接端子15对其进行前置放大器等中的小信号的接地，用于另一个部分。在电力IC12安装在电子基板上的状态下，小信号接地端子14通过小信号接地布线图案27从小信号接地端子安装区域24连接到公共接地点16，进行点接地。高频噪声由小信号接地端子14和接地连接端子15之间的电容器17旁路。

2. 发明专利

JPS6162248A Device for discriminating amplitude modulating stereophonic broadcasting system 失效
标题翻译：用于鉴别振幅调制立体声广播系统的装置
公开(公告)号：JPS6162248A
公开(公告)日：1986-03-31
申请号：JP18378684
申请日：1984-09-04
申请人： Fujitsu Ten Ltd
发明人： SASAKI KAZUTOSHI , SHINTANI HIROYUKI
IPC分类号： H04H1/00 , H04H40/36 , H04H40/45 , H04H5/00
CPC分类号： H04H20/88
摘要： PURPOSE:To prevent a malfunction due to noise components even if there is a noise component in a pilot signal frequency band by including a hysteresis comparator for waveform shaping of a pilot signal in a separating circuit. CONSTITUTION:A SUB signal (sub channel signal) obtained in the modulating circuit 14 of a CPM system is led to a pilot filter 2 to take out a pilot signal component. The output of the pilot filter 2 is led to the input terminal of a differential discriminating circuit 5 and a hysteresis comparator 3. The hysteresis comparator 2 is a circuit for waveforming a pilot filter output signal into a pulse waveform and has a function of waveforming while eliminating the effect of the noise component of low level voltage superposed on the pilot signal. The output of the hysteresis comparator 3 is led to the input terminal of a frequency discriminating circuit 4.
摘要翻译：目的：通过在分离电路中包括用于导频信号的波形整形的滞后比较器，即使在导频信号频带中存在噪声分量，也可防止因噪声分量引起的故障。构成：在CPM系统的调制电路14中获得的SUB信号（子信道信号）被引导到导频滤波器2以取出导频信号分量。导频滤波器2的输出被引导到差分鉴别电路5和滞后比较器3的输入端。滞环比较器2是用于将导频滤波器输出信号波形成脉冲波形的电路，并具有波形的功能，同时消除叠加在导频信号上的低电平电压的噪声分量的影响。滞后比较器3的输出被引导到鉴频电路4的输入端。

3. 发明专利

JPS6158302A Voltage controlled oscillator 失效
标题翻译：电压控制振荡器
公开(公告)号：JPS6158302A
公开(公告)日：1986-03-25
申请号：JP17934384
申请日：1984-08-30
申请人： Fujitsu Ten Ltd
发明人： TAKAYAMA KAZUO , SHINTANI HIROYUKI
IPC分类号： H03B5/36
CPC分类号： H03B5/36
摘要： PURPOSE:To eliminate the fluctuation of the center frequency caused by the deviation, etc., of the value of each parts, by determining the center frequency from the natural frequency of a frequency selecting element itself, such as ceramic vibrator, etc. CONSTITUTION:Oscillation in which the natural frequency of a ceramic vibrator X1 is used as the center frequency, is performed by a positive feedback circuit from the transistor (TR) Q7 of an oscillating circuit section to another TR Q6 through a node P3 and resistance R3. On the other hand, electric currents of the same and opposite polarities to the electric current flowing from the node P3 to a capacitor C3 are respectively produced in the collectors of TRs Q12 and Q13. Thereafter, each current is mixed in a ratio corresponding to a control voltage VCNT and outputted to TRs Q9 and Q11, and then, fed back to the TR Q13 through the node P3 and capacitor C3. Therefore, a positive and negative equivalent capacities are connected with the node P3 in accordance with the value of the control voltage VCNT. Accordingly, fluctuation of the center frequency caused by the deviation, etc., of the constant value of each parts can be eliminated.
摘要翻译：目的：通过从频率选择元件本身的固有频率（如陶瓷振动器等）确定中心频率，消除由每个部件的值的偏差等引起的中心频率的波动。构成：使用陶瓷振子X1的固有频率作为中心频率的振荡通过正反馈电路从振荡电路部分的晶体管（TR）Q7到另一个TR Q6通过节点P3和电阻R3进行。另一方面，分别在TRs Q12和Q13的集电极中产生与从节点P3流向电容器C3的电流相同极性相反的电流。此后，以与控制电压VCNT对应的比例混合各电流，并输出到TRs Q9和Q11，然后通过节点P3和电容器C3反馈到TR Q13。因此，正负等效容量根据控制电压VCNT的值与节点P3连接。因此，可以消除由各部件的常数值的偏差等引起的中心频率的波动。

4. 发明专利

JP2012195791A On-vehicle audio device and on-vehicle audio system 有权
标题翻译：车载音响设备和车载音响系统
公开(公告)号：JP2012195791A
公开(公告)日：2012-10-11
申请号：JP2011058605
申请日：2011-03-16
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： KUBO MASAHIKO , SHINTANI HIROYUKI , MAEDA MASANOBU , ICHIHARA KOICHI , KIDO TOSHIHIRO
IPC分类号： H04S1/00 , B60R11/02
摘要： PROBLEM TO BE SOLVED: To localize a sound image to a plurality of listeners suitably.SOLUTION: An on-vehicle audio device is configured so that phases of a composite wave based on outputs of loudspeakers arranged at the right and the left of a cabin become in-phase between both ears of a listener corresponding to each seating position in the cabin by changing a phase for each of acoustic signals corresponding to the respective loudspeakers, concretely, so that the phases of the composite wave are adjusted so as to be only positive phases or reverse phases between both the ears by shifting phases of an R signal outputted from an R loudspeaker (13) and an L signal outputted from an L loudspeaker (14). In addition, in the case that the loudspeakers are arranged at the front and the back of the cabin, the on-vehicle audio device is configured so that a reverberation component can be given to the acoustic signal corresponding to the loudspeaker at the back of the cabin.
摘要翻译：要解决的问题：适当地将声像定位到多个听众。解决方案：车载音频设备被配置为使得基于布置在客舱右侧和左侧的扬声器的输出的合成波的相位在对应于每个就座位置的收听者的两只耳朵之间同相具体地说，通过改变与各个扬声器相对应的每个声学信号的相位，在舱室中，通过将R的相位相移，使得复合波的相位被调整为仅在两个耳朵之间仅为正相位或相位相位从R个扬声器（13）输出的信号和从L个扬声器（14）输出的L信号。此外，在扬声器布置在机舱的前部和后部的情况下，车载音频设备被配置为使得混响分量可以被给予对应于扬声器背面的扬声器的声学信号舱。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JPH04282920A MULTI-FUNCTION POWER SUPPLY CIRCUIT FOR ON-VEHICLE AUDIO EQUIPMENT 失效
公开(公告)号：JPH04282920A
公开(公告)日：1992-10-08
申请号：JP7229291
申请日：1991-03-12
申请人： FUJITSU TEN LTD
发明人： SHINTANI HIROYUKI
IPC分类号： H04B1/10 , H04B1/16
摘要： PURPOSE:To suppress noise generated from a power IC by providing a power supply fluctuation detection circuit to a multi-function power supply circuit and generating a mute signal regardless of a fluctuation timing of a backup power supply when an accessory power supply is fluctuated. CONSTITUTION:A higher voltage from an ACC is dropped by a forward voltage of diodes D1, D2 is outputted from the diodes D1, D2 and an integration circuit comprising R, C1 charges a capacitor C1 by this voltage. A transistor circuit comprising T, ZD, C2 outputs a mute signal MUTE when a voltage of the ACC is lower than a sum of a base-emitter voltage of a transistor (TR) T and a Zener voltage of the ZD with respect to the charging voltage of the integration circuit. A mute signal is generated independently of a fluctuation timing of a backup power supply BU at the fluctuation of an accessory power supply ACC in this way, then a noise sound generated from a power IC is suppressed.

6. 发明专利

JPH0358212B2 失效
公开(公告)号：JPH0358212B2
公开(公告)日：1991-09-04
申请号：JP18061484
申请日：1984-08-31
申请人： FUJITSU TEN LTD
发明人： SHINTANI HIROYUKI , SASAKI KAZUTOSHI
IPC分类号： H04H1/00 , H04H40/36 , H04H40/45

7. 发明专利

JPS6163122A Identification device of amplitude modulation stereo broadcast system 失效
标题翻译： AMPLITUDE MODULATION STEREO BROADCAST系统的识别装置
公开(公告)号：JPS6163122A
公开(公告)日：1986-04-01
申请号：JP18441984
申请日：1984-09-05
申请人： Fujitsu Ten Ltd
发明人： SASAKI KAZUTOSHI , SHINTANI HIROYUKI
IPC分类号： H04H1/00 , H04H40/36 , H04H40/45 , H04H5/00
CPC分类号： H04H20/88
摘要： PURPOSE:To simplify the constitution of a counter circuit by applying a pilot signal inputted to a frequency identification circuit to a counter circuit after it is frequency-divided for identification to decrease the maximum calculating value of the counter circuit. CONSTITUTION:A pulse pilot signal from a waveform shaping circuit is led to an input terminal of an AND gate 41 of a frequency identification circuit 4, an output of the gate 41 is inputted to a frequency divider 420 of a count section 42, and the frequency division output is led to an AND gate 427 and counters 421-423. The output of the counter 423 is led to the input terminal of gates 427-429 via an inverter 426 and to an input terminal of a circuit 464, and similarly an output of the counter 422 is fed to each input terminal of the gates 427, 428 via an inverter 425 and an output of the counter 421 is led to each input terminal of the gate 427 via the gate 428 and inverter 424 respectively. The counters 421-423 output logical 1 when the number of the pulse signals is 2-4, 4-6, 9-13.
摘要翻译：目的：为了简化计数器电路的结构，通过在对频率识别电路进行分频之后，将输入频率识别电路的导频信号应用于计数器电路，进行识别，以减小计数器电路的最大计算值。构成：来自波形整形电路的脉冲导频信号被引导到频率识别电路4的与门41的输入端，门41的输出被输入到计数部42的分频器420，分频输出被导通到与门427和计数器421-423。计数器423的输出通过反相器426和电路464的输入端被引导到门427-429的输入端，类似地，计数器422的输出被馈送到门427的每个输入端，经由反相器425输出的逻辑电路428和计数器421的输出分别通过门428和反相器424被引导到门427的每个输入端。当脉冲信号的数量为2-4，4-6，9-13时，计数器421-423输出逻辑1。

8. 发明专利

JP2000151309A ON-VEHICLE ACOUSTIC DEVICE 失效
公开(公告)号：JP2000151309A
公开(公告)日：2000-05-30
申请号：JP32192598
申请日：1998-11-12
申请人： FUJITSU TEN LTD
发明人： SHINTANI HIROYUKI
IPC分类号： H03G3/00
摘要： PROBLEM TO BE SOLVED: To execute adjustment by means of considering not only the presence of absence of a boarding person but also the change in various acoustic space characteristics in a car room due to the difference of the boarding person by providing a boarding person data output means outputting data on the size of the boarding person and a correction means correcting output signals to plural speakers in accordance with the output value of the boarding person data output means. SOLUTION: The data on the position and the weight of a boarding person to a vehicle, which is inputted by an operation switch 7, are transmitted to a microcomputer 10 from a microcomputer 6. The microcomputer 10 calculates respective pieces of data for adjusting desired acoustic quality, adjusting an acoustic field, correcting frequency characteristic, correcting phase and distributing outputs to front/back/right/left loudspeakers FLS-RRS, based on received boarding person data from the microcomputer 6. Then, they are outputted to a digital signal processor(DSP) 9. The DSP 9 adjusts sound quality and acoustic field, and distributes outputs to the front/back/right/left loudspeakers FLS- RRS, in accordance with the boarding position of the boarding person and the size of the body of the boarding person.

9. 发明专利

JPS62258599A ON-VEHICLE SURROUNDING DEVICE 失效
公开(公告)号：JPS62258599A
公开(公告)日：1987-11-11
申请号：JP9910986
申请日：1986-04-28
申请人： FUJITSU TEN LTD
发明人： KATO SHIGEKI , SHINTANI HIROYUKI
IPC分类号： H03G5/02 , H04R5/02 , H04S1/00 , H04S5/02
摘要： PURPOSE:To prevent the feeling of deficient low frequency sound by inserting a high pass filter to the prestage of an attenuator so that the frequency range of components subtracted from signals L, R is limited to the middle and high frequency sound. CONSTITUTION:The on-vehicle 4-speaker system consists of front side speakers FL, FR and rear side speakers RL, RR and high pass filters HPF1, HPF2 are inserted to the prestage of attenuators ATT1, ATT2. The input resistor R1 is used for the high pass filter HPF1 and the cut-off frequency fc is expressed as fc =1/2piC1'R1. When the f'c is 200Hz, C1' is 7.96X 10 , it is realized by the capacitor of 0.0082muF. In using the circuit, no subtraction is executed at a low sound frequency below 200Hz. Even when the rear side speakers RL, RR with excellent low sound reproduction capability are used, the low frequency sound is not deficient.

10. 发明专利

JPS6159932A Amplitude modulation stereo broadcast system identification device 失效
标题翻译：振幅调制立体声广播系统识别装置
公开(公告)号：JPS6159932A
公开(公告)日：1986-03-27
申请号：JP18061584
申请日：1984-08-31
申请人： Fujitsu Ten Ltd
发明人： SHINTANI HIROYUKI , SASAKI KAZUTOSHI
IPC分类号： H04H1/00 , H04H40/45 , H04H5/00
CPC分类号： H04H20/88
摘要： PURPOSE:To prevent a frequency identification circuit from identifying an erroneous system just after application of power supply by initializing the frequency identification circuit just after power supply of an AM stereo broadcast identification device is applied. CONSTITUTION: When power of a power supply leading detection circuit 7 is applied, a voltage source rises rapidly to a voltage VCC and then a voltage dividing voltage V1 dividing the voltage VCC by resistors R72, R73, rises also rapidly. On the other hand, a voltage across a capacitor C71 rises gradually to a voltage V2 with a delay of a time constant of C71.R73. Thus, a pulse signal going to a high level just after application of power and going to a low level when a terminal voltage of the capacitor C71 exceeds the voltage dividing voltage V1 is outputted from a comparator 71. The pulse signal is fed to a reset terminal of a frequency identification circuit 4 to reset binary counters or the like. Thus, erroneous identification of the broadcast system by the identification circuit 4 is prevented just after application of power.
摘要翻译：目的：通过在AM立体声广播识别装置的电源供应之后初始化频率识别电路，防止频率识别电路在应用电源之后识别出错误的系统。构成：当施加电源引线检测电路7的电源时，电压源迅速上升到电压VCC，然后由电阻器R72，R73分压电压VCC的分压电压V1也快速上升。另一方面，电容器C71两端的电压以C71.R73的时间常数的延迟逐渐上升到电压V2。因此，当电容器C71的端子电压超过分压电压V1时，刚刚施加电源并进入低电平的脉冲信号从比较器71输出。脉冲信号被馈送到复位频率识别电路4的端子，以复位二进制计数器等。因此，刚刚在施加电力之后就防止识别电路4对广播系统的错误识别。

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