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1. 发明专利

JP2013157818A Mute control circuit and pulse width modulation circuit 审中-公开
标题翻译：静音控制电路和脉冲宽度调制电路
公开(公告)号：JP2013157818A
公开(公告)日：2013-08-15
申请号：JP2012017288
申请日：2012-01-30
申请人： Onkyo Corp , オンキヨー株式会社
发明人： NAKANISHI YOSHINORI , UMETSU NORIO , MINAGAWA ATSUSHI
IPC分类号： H03F1/00 , H03F3/217 , H03K7/08
摘要： PROBLEM TO BE SOLVED: To execute a mute process instantly at a transition from a power-on state to a power-off state, and prevent the mute process from being executed upon an input supply voltage drop in the power-on state.SOLUTION: In a power-on state, a resistance R17 and a transistor Q11 are directly connected without the intervention of a Zener diode D13. Even if an input supply voltage drops in the power-on state, transistors Q12, Q13 remain on to keep a mute control signal for executing a mute process from being output. At a transition from the power-on state to a power-off state, the resistance R17 and the transistor Q11 are connected via the Zener diode D13. An input supply voltage drop can then cause the Zener diode D13 to draw a current to the resistance R17 to instantly control the transistors Q12, Q13 to an off state and instantly output the mute control signal for executing the mute process.
摘要翻译：要解决的问题：在从通电状态到断电状态的转变时立即执行静音处理，并且防止在通电状态下的输入电源电压下降执行静音处理。解决方案：在通电状态下，电阻R17和晶体管Q11直接连接而不需要齐纳二极管D13的介入。即使输入电源电压在通电状态下降，晶体管Q12，Q13保持导通，以保持静音控制信号，以执行静音处理。在从上电状态转换到断电状态时，电阻R17和晶体管Q11经由齐纳二极管D13连接。然后，输入电源电压降可以使齐纳二极管D13向电阻R17引出电流，以立即将晶体管Q12，Q13控制为截止状态，并立即输出用于执行静音处理的静音控制信号。

2. 发明专利

JP2014054040A Switching power supply 有权
标题翻译：切换电源
公开(公告)号：JP2014054040A
公开(公告)日：2014-03-20
申请号：JP2012195740
申请日：2012-09-06
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , SAKAI SHINICHI
IPC分类号： H02J1/00 , H02M3/28
CPC分类号： Y02B70/16
摘要： PROBLEM TO BE SOLVED: To provide a switching power supply which reduces power consumption during standby and prevents noise in a standby power supply.SOLUTION: A switching power supply comprises a main power supply 10a and a standby power supply 10b. In a standby state; a standby power supply control circuit 24 turns to be in an on-state to make a transformer T3 supply power supply voltage to a set control circuit 28, and the set control circuit 28 performs off-control of a switch 30 to make a main power supply control circuit 18 be in an off-state. In a power supply on-state; the set control circuit 28 performs on-control of the switch 30 to make the main power supply control circuit 18 be in an on-state to make a transformer T1 output power supply voltage, and a standby power supply control feedback circuit 26 and a threshold adjustment circuit 40 make the standby power supply control circuit 24 be in an off-state depending on the output from the transformer T1.
摘要翻译：要解决的问题：提供一种降低待机期间的功耗并防止备用电源中的噪声的开关电源。解决方案：开关电源包括主电源10a和备用电源10b。处于待机状态; 待机电源控制电路24变成导通状态，使变压器T3向设定控制电路28供给电源电压，并且设定控制电路28对开关30进行断开控制以使主电源供给控制电路18处于关闭状态。在供电状态下; 设定控制电路28对开关30进行导通控制，使主电源控制电路18成为导通状态，使变压器T1输出电源电压，备用电源控制反馈电路26和阈值调整电路40使备用电源控制电路24根据变压器T1的输出而处于截止状态。

3. 发明专利

JP2009065611A Pulse width modulation circuit and switching amplifier employing the same 有权
标题翻译：使用其脉冲宽度调制电路和切换放大器
公开(公告)号：JP2009065611A
公开(公告)日：2009-03-26
申请号：JP2007233944
申请日：2007-09-10
申请人： Onkyo Corp , オンキヨー株式会社
发明人： NAKANISHI YOSHINORI , TOYAMA TETSUYA , YAMAMOTO SUNAO , OTA ARINOBU , MINAGAWA ATSUSHI
IPC分类号： H03F3/217 , H03F3/34 , H03K7/08
摘要： PROBLEM TO BE SOLVED: To output a suitable pulse width modulation signal by suppressing an offset voltage when starting charging an integration circuit.
SOLUTION: A pulse width modulation circuit 1 charges a first integration circuit C1 during a first term T1, that is a half cycle of a predetermined clock signal, on the basis of a current based on an input signal and discharges, toward a discharge bias current source 13, a charging voltage accumulated in the first integration circuit C1 during a second term T2 on the basis of a fixed bias current. The time from start of the second term T2 to reach of a voltage in the first integration circuit C1 to a predetermined reference voltage is detected and on the basis of the time that is alternately and iteratively outputted in each half cycle of the clock signal, a pulse signal having a pulse width of the relevant time is generated.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过在开始对积分电路充电时抑制偏移电压来输出合适的脉宽调制信号。解决方案：脉冲宽度调制电路1基于基于输入信号的电流在第一项T1期间（即预定时钟信号的半周期）对第一积分电路C1充电，并朝向放电偏置电流源13，基于固定偏置电流在第二项T2期间在第一积分电路C1中累积的充电电压。检测从第二项T2开始到第一积分电路C1中的电压到预定参考电压的时间，并且基于在时钟信号的每个半周期中交替地迭代地输出的时间，产生具有相关时间的脉冲宽度的脉冲信号。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007329698A Pulse width modulating circuit, and switching amplifier using same 有权
标题翻译：脉冲宽度调制电路和使用相同的开关放大器
公开(公告)号：JP2007329698A
公开(公告)日：2007-12-20
申请号：JP2006159300
申请日：2006-06-08
申请人： Onkyo Corp , オンキヨー株式会社
发明人： KASAI JOJI , MINAGAWA ATSUSHI , UMETSU NORIO , SEKIYA MAMORU , OTA ARINOBU
IPC分类号： H03F3/217 , H03F3/181 , H03K7/08
摘要： PROBLEM TO BE SOLVED: To provide a pulse width modulating circuit of novel constitution whose carrier frequency is made nearly constant. SOLUTION: The pulse width modulating circuit 1 charges a first integrating capacitor C1 with a current based upon an audio signal e S in a first period T1 (wherein SWs 2 and 3 are ON, and SWs 1 and 4 are OFF), and varies the charging voltage accumulated in the C1 with a constant bias current Ib in a second period (wherein the SWs 2 and 3 are OFF and the SWs 1 and 4 are ON). Further, the pulse width modulating circuit charges a second integrating capacitor C2 with the current based upon e S in the T2 and varies the charging voltage accumulated in the C2 with the Ib in a third period T3 (wherein the SWs 2 and 3 are ON and the SWs 1 and 4 are OFF). The time from when the T2 starts until when the voltage across the C1 reaches Vref is detected. The time from when the T3 starts until when the voltage across the C2 reaches Vref is detected. Based upon those times, a pulse signal having a pulse width of the times is generated. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供载波频率几乎恒定的新颖结构的脉宽调制电路。解决方案：脉冲宽度调制电路1在第一周期T1（其中SW 2和3为ON）和基于音频信号e S 的电流对第一积分电容器C1充电电流， 1和4为OFF），并且在第二周期（其中SW 2和3为OFF并且SW 1和4为ON）中以恒定的偏置电流Ib改变C1中累积的充电电压。此外，脉冲宽度调制电路对T2中的e S 的电流对第二积分电容器C2充电，并且在第三时段T3中使用Ib变化在C2中累积的充电电压（其中， SW2和3为ON，SW1和4为OFF）。从T2开始直到C1两端的电压达到Vref的时间被检测到。从T3开始到C2两端的电压达到Vref的时间被检测到。基于这些时间，产生具有时间脉冲宽度的脉冲信号。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2013186494A Power supply circuit 有权
标题翻译：电源电路
公开(公告)号：JP2013186494A
公开(公告)日：2013-09-19
申请号：JP2012048525
申请日：2012-03-05
申请人： Onkyo Corp , オンキヨー株式会社
发明人： NAKANISHI YOSHINORI , MINAGAWA ATSUSHI , YOSHIDA MAKOTO , SEKIYA MAMORU
IPC分类号： G05F1/56 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To output a stable DC voltage even when an AC voltage to be inputted changes.SOLUTION: Since transistors Q1 and Q2 are turned into an off state when a voltage V4 from a rectification circuit 2 is equal to or higher than a threshold voltage Vth, current based on the voltage from the rectification circuit 2 does not flow to an output section 3, thereby generating no voltage at an output section 6. When the voltage from the rectification circuit 2 is lower than the threshold voltage Vth, the transistor Q1 is turned in an on state. In this case, if the threshold voltage Vth is equal to or higher than an output voltage, the transistor Q2 is turned into the on state, thereby causing current based on a voltage V3 from the rectification circuit 2 to flow to the output section 6 to generate a voltage at the output section 6. When the threshold voltage Vth is lower than a voltage obtained by adding a base-emitter voltage of the transistor Q2 to the output voltage, the transistor Q2 is turned into the off state, generating no voltage at the output section 6.
摘要翻译：要解决的问题：即使当要输入的交流电压改变时也输出稳定的直流电压。解决方案：当整流电路2的电压V4等于或高于一个时，晶体管Q1和Q2变成截止状态阈值电压Vth，基于来自整流电路2的电压的电流不流到输出部3，从而在输出部6不产生电压。当来自整流电路2的电压低于阈值电压Vth时，晶体管Q1导通状态。在这种情况下，如果阈值电压Vth等于或高于输出电压，则晶体管Q2变为导通状态，从而使来自整流电路2的电压V3的电流流向输出部6 在输出部分6产生电压。当阈值电压Vth低于通过将晶体管Q2的基极 - 发射极电压加到输出电压而获得的电压时，晶体管Q2变成截止状态，不产生电压输出部分6。

6. 发明专利

JP2013055557A Current detection circuit 审中-公开
标题翻译：电流检测电路
公开(公告)号：JP2013055557A
公开(公告)日：2013-03-21
申请号：JP2011193209
申请日：2011-09-05
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , NAKANISHI YOSHINORI , UMETSU NORIO
IPC分类号： H03F1/30 , H03F1/52 , H03F3/21
摘要： PROBLEM TO BE SOLVED: To provide a current detection circuit capable of detecting an excessive current flowing through a semiconductor element of an amplifier circuit while considering an influence of temperature.SOLUTION: A current detection circuit 1 includes: a positive-side threshold voltage generating section 5 that determines a positive-side threshold voltage according to the detection result by a temperature detection section 3; a negative-side threshold voltage generating section 6 that determines a negative-side threshold voltage according to the detection result by the temperature detection section 3; and a comparison section 7 that compares a positive-side signal and the negative-side threshold voltage, and then outputs a high-level signal indicating that a current flowing through a transistor is excessive when the positive-side signal is equal to or more than the negative-side threshold voltage, and compares a negative-side signal and the positive-side threshold voltage, and then outputs a high-level signal indicating that the current flowing through the transistor is excessive when the negative-side signal is less than the positive-side threshold voltage.
摘要翻译：要解决的问题：提供一种能够在考虑温度的影响的同时检测流过放大器电路的半导体元件的过大电流的电流检测电路。电流检测电路1包括：正侧阈值电压生成部5，其根据温度检测部3的检测结果确定正侧阈值电压; 负侧阈值电压生成部6，其根据温度检测部3的检测结果确定负侧阈值电压; 以及比较部分7，其比较正侧信号和负侧阈值电压，然后当正侧信号等于或大于等于或高于该值时，输出表示流过晶体管的电流过大的高电平信号负侧阈值电压，并且将负侧信号和正侧阈值电压进行比较，然后输出表示当负侧信号小于正极侧信号时流过晶体管的电流过大的高电平信号正侧阈值电压。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012238971A Receiving device 有权
标题翻译：接收设备
公开(公告)号：JP2012238971A
公开(公告)日：2012-12-06
申请号：JP2011105560
申请日：2011-05-10
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , MURAYAMA SATOSHI , YOSHIZAKI HIROKO
IPC分类号： H04B1/16 , H04W76/02
摘要： PROBLEM TO BE SOLVED: To provide a receiving device which can be wirelessly connected to a transmitting device without requiring a user operation.SOLUTION: The receiving device manages, in a connection history table, identification information of one or a plurality of transmitting devices in accordance with predetermined priorities and, when wirelessly connected to a transmitting device, updates the connection history table so that a priority of the wirelessly connected transmitting device becomes highest. When sensing the presence of a human by a human sensor, the receiving device searches for the transmitting devices managed in the connection history table in decreasing order of priority. When finding a transmitting device, the receiving device is automatically and wirelessly connected to the found transmitting device. The receiving device receives music data from the wirelessly connected transmitting device and reproduces it.
摘要翻译：要解决的问题：提供一种可以无线连接到发送设备而不需要用户操作的接收设备。解决方案：接收装置根据预定的优先级在连接历史表中管理一个或多个发送装置的识别信息，并且当无线连接到发送装置时，更新连接历史表，使得优先的无线连接发送设备变得最高。当感测到人类传感器存在人时，接收装置以优先级的降序依次搜索在连接历史表中管理的发送装置。当发现设备时，接收设备自动地和无线地连接到所发现的发送设备。接收设备从无线连接的发送设备接收音乐数据并再现它。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2011029859A Pulse width modulation circuit and switching amplifier thereof 有权
标题翻译：脉冲宽度调制电路和开关放大器
公开(公告)号：JP2011029859A
公开(公告)日：2011-02-10
申请号：JP2009172609
申请日：2009-07-24
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , NAKANISHI YOSHINORI
IPC分类号： H03K7/08 , H03F3/217 , H03K5/04
摘要： PROBLEM TO BE SOLVED: To output a pulse width modulation signal corresponding to an input signal correctly even if current values of a DC bias current Ic and a discharge current Id are varied by a temperature coefficient.
SOLUTION: A current generation circuit 14 is equipped with a constant current circuit 31 which generates a constant current I1, a differential circuit 32 which generates a current I2+Δi which is the sum of a current I2 having the current value equal to 1/2 of the constant current I1 and a current Δi obtained by converting an AC voltage es into a current, a current voltage conversion means 33 for converting the constant current I1 into a voltage Vb2, a voltage current conversion means 34 for converting the voltage Vb2 supplied from the current voltage conversion means 33 into a current, thus generating the discharge current Id, a current voltage conversion means 35 for converting the current I2+Δi into a voltage Vb1, and a voltage current conversion means 36 for converting the voltage Vb1 supplied from the current voltage conversion means 35 into a current, thus generating a charging current Ic+Δi.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使直流偏置电流Ic和放电电流Id的电流值变化了温度系数，也能正确输出与输入信号相对应的脉宽调制信号。电流发生电路14配备有产生恒定电流I1的恒流电路31，产生电流I2 +Δi的差动电路32，该电流I2 +Δi是电流值等于恒定电流I1的1/2和通过将AC电压es转换为电流而获得的电流Δi，用于将恒定电流I1转换为电压Vb2的电流电压转换装置33，用于将电压转换成电压的电压电流转换装置34 Vb2为电流，由此生成放电电流Id，将电流I2 +Δi变换为电压Vb1的电流电压转换单元35，以及电压电压转换单元36，用于将电压Vb1 从电流电压转换装置35提供电流，从而产生充电电流Ic +Δi。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2009135718A Switching amplifier 有权
标题翻译：开关放大器
公开(公告)号：JP2009135718A
公开(公告)日：2009-06-18
申请号：JP2007309562
申请日：2007-11-30
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , UMETSU NORIO
IPC分类号： H03F3/217 , H03K7/08
摘要： PROBLEM TO BE SOLVED: To execute negative feedback without using an LPF in a negative feedback path in a pulse width modulation circuit.
SOLUTION: By a current based on an audio signal eS and a signal generated by amplitude-attenuating and inverting a pulse signal output from a switching circuit, a voltage of a first integrator circuit C1 is changed in a first period T1 of a clock signal MCLK while the voltage of the first integrator circuit C1 is reversely changed in a second period T2 on the basis of a fixed bias current, and also, a voltage of a second integrator circuit C2 is changed while the voltage of the second integrator circuit C2 is reversely changed in a period T3 on the basis of the bias current. Time duration from the start of the second period T2 until the time when the voltage of the first integrator circuit C1 reaches a reference voltage Vth is detected. Time duration from the start of the third period T3 until the time when the voltage of the second integrator circuit C2 reaches the reference voltage Vth is detected. A pulse signal is generated on the basis of the time duration until the voltages of the integrator circuits C1, C2 reach the reference voltage Vth so as to have a pulse width of the time duration.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在脉冲宽度调制电路的负反馈路径中不使用LPF执行负反馈。解决方案：通过基于音频信号eS的电流和通过对从开关电路输出的脉冲信号进行幅度衰减和反相而产生的信号，第一积分电路C1的电压在第一周期T1中改变时钟信号MCLK，而第一积分器电路C1的电压在第二周期T2中基于固定偏置电流而反向变化，并且第二积分器电路C2的电压也改变，同时第二积分器电路 C2在偏置电流的基础上在时段T3中反向变化。检测从第二时段T2开始到第一积分器电路C1的电压达到基准电压Vth的时间。检测从第三时段T3开始到第二积分电路C2的电压达到基准电压Vth的时间。基于持续时间产生脉冲信号，直到积分器电路C1，C2的电压达到参考电压Vth，以具有持续时间的脉冲宽度。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2013197922A Communication device 审中-公开
标题翻译：通信设备
公开(公告)号：JP2013197922A
公开(公告)日：2013-09-30
申请号：JP2012063323
申请日：2012-03-21
申请人： Onkyo Corp , オンキヨー株式会社
发明人： MINAGAWA ATSUSHI , SEKIYA MAMORU
IPC分类号： H04L25/02
摘要： PROBLEM TO BE SOLVED: To prevent communication failure based on a time constant of a communication circuit for transmitting/receiving information, and adverse effect of communication caused by a ground loop.SOLUTION: An acoustic device B, to which an acoustic device A' is connected through a communication cable L2, includes a communication terminal whose ground contact point A2' is connected to ground GND2 of the acoustic device B through a capacitor C. The acoustic device A' includes a communication terminal, to which the communication cable L2 is connected, whose ground contact point a1' is connected to ground GND1 of the acoustic device A' through a floating circuit 7. A discharge control circuit 5 for controlling discharge of stored charge of the capacitor Cis installed between a connection point b1 of a switch circuit 4 for converting transmission information to a digital signal and a ground contact point a1'. A level shift circuit 6 for converting a variation range of levels of received digital signals to a range of power supply between voltage Vand the ground GND1 is installed between the connection point b1 and a reception signal input terminal Rx1 of a micro computer 2.
摘要翻译：要解决的问题：基于用于发送/接收信息的通信电路的时间常数以及由接地回路引起的通信的不利影响来防止通信故障。解决方案：声学装置A，声学装置A' 通过通信电缆L2连接的通信终端包括通过接地点A2'通过电容器C连接到声学设备B的地GND2的通信终端。声学设备A'包括通信终端，通信电缆L2连接到通信终端，其接地点a1'通过浮置电路7连接到声学装置A'的地GND1。放电控制电路5，用于控制安装在开关电路4的连接点b1之间的电容器Cis的存储电荷的放电用于将发送信息转换为数字信号和接地点a1'。在连接点b1和微型计算机2的接收信号输入端子Rx1之间安装有用于将接收到的数字信号电平的变化范围转换为电压V和接地GND1之间的电源范围的电平移位电路6。

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