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    • 2. 发明授权
    • Frequency multiplying device and digitally-controlled oscillator
    • 倍频装置和数字控制振荡器
    • US5789985A
    • 1998-08-04
    • US621607
    • 1996-03-22
    • Shigenori YamauchiTakamoto WatanabeTadashi ShibataYoshinori Fujihashi
    • Shigenori YamauchiTakamoto WatanabeTadashi ShibataYoshinori Fujihashi
    • H03K5/00H03K3/03H03L7/099H03B27/00H03K5/26H03L7/06
    • H03L7/0991
    • A frequency multiplying device which multiplies the frequency of an externally-supplied reference signal PREF includes a digitally-controlled oscillation circuit, which includes a ring oscillator formed of thirty-two inverting circuits in a ring configuration which are adapted to generate sixteen clock signals having a period that is thirty-two times the inversion time of each inverting circuit and a phase interval that is twice the inverting circuit inversion time, and produces an output signal POUT having a period that corresponds to frequency control data CD at a resolution of the phase difference time of the clock signals, a counter/data-latch circuit which counts the clock signal RCK released by the ring oscillator within one period of the reference signal PREF and delivers the frequency control data CD of the count value to the digital oscillation circuit, and a control circuit which controls the operation of the circuits so that the oscillation output signal POUT having the frequency of the reference signal PREF multiplied by sixteen (32/2) is generated by the digital oscillation circuit.
    • 将外部提供的参考信号PREF的频率相乘的倍频装置包括数字控制的振荡电路,其包括由环形配置中的三十二个反相电路形成的环形振荡器,该环形振荡器适于产生十六个时钟信号, 周期,是每个反相电路的反相时间的三十二倍,是反相电路反相时间的两倍的相位间隔,并产生具有与频率控制数据CD相对应的周期的输出信号POUT,该周期以相位差的分辨率 时钟信号的时间;计数器/数据锁存电路,用于对参考信号PREF的一个周期内由环形振荡器释放的时钟信号RCK进行计数,并将计数值的频率控制数据CD传送到数字振荡电路;以及 控制电路,其控制电路的运行,使得具有频率的振荡输出信号POUT 通过数字振荡电路产生参考信号PREF乘以十六(32/2)的通量。
    • 5. 发明授权
    • Recirculating delay line digital pulse generator having high control
proportionality
    • 具有高控制比例的再循环延迟线数字脉冲发生器
    • US5525939A
    • 1996-06-11
    • US501269
    • 1995-07-12
    • Shigenori YamauchiTakamoto Watanabe
    • Shigenori YamauchiTakamoto Watanabe
    • H03K3/03H03K5/135H03B5/24H03K3/012H03K3/027
    • H03K3/0315H03K5/135
    • In a digital control pulse generator including a ring oscillator composed of multiple inversion circuits connected in a ring for circulating a pulse, a counter and selectors which turn data of a flip-flop to high when a counted value of the pulse from a terminal of the ring oscillator becomes a value corresponding to ten high order bits of control data, a pulse selector for taking out a clock of the flip-flop from the inversion circuit at the position specified by four bit control data and a delay line and logical product circuit which turn an output signal of the system to a high level for a predetermined time when the output of the flip-flop turns high, a register and adder accumulate the four low order bits of the control data every time the output signal turns high to update the data four bit data. As a result, the ring oscillator may be continuously operated and an oscillation cycle proportional to the control data may be set.
    • 在包括环形振荡器的数字控制脉冲发生器中,所述环形振荡器由连接在环中以循环脉冲的多个反相电路组成,计数器和选择器将触发器的数据值从 环形振荡器成为对应于控制数据的十个高位位的值,用于在由四位控制数据指定的位置处的反相电路中取出触发器的时钟的脉冲选择器和延迟线以及逻辑积电路, 当触发器的输出变为高电平时,将系统的输出信号转换到高电平达预定时间,寄存器和加法器在每当输出信号变为高电平时累积控制数据的四个低位,以更新 数据四位数据。 结果,可以连续地操作环形振荡器,并且可以设置与控制数据成比例的振荡周期。
    • 6. 发明授权
    • Pulse generator
    • 脉冲发生器
    • US5477196A
    • 1995-12-19
    • US362648
    • 1994-12-23
    • Shigenori YamauchiTakamoto Watanabe
    • Shigenori YamauchiTakamoto Watanabe
    • G01R25/00G01R25/08G01R29/02H03K3/03H03K3/354H03K5/00H03K5/135H03K5/26H03L7/06H03L7/085H03B27/00H03L7/083H03L7/18
    • H03K3/0315H03K5/135
    • In a device for encoding a pulse phase difference or controlling an oscillation frequency based on delayed signals sequentially output by a delay circuit, the encoding of a pulse phase difference or the oscillation control can be simultaneously performed using a single delay device. There is provided a frequency converter including a ring oscillator consisting of inverting circuits interconnected in the form of a ring, a pulse phase difference encoding circuit for encoding the cycle of a reference signal into a binary digital value based on a pulse output by the ring oscillator, an arithmetic circuit for multiplying or dividing the binary digital value by a predetermined value to generate control data and a digitally controlled oscillation circuit for generating a pulse signal in a cycle in accordance with the control data based on the pulse output by the ring oscillator, the ring oscillator being shared by the encoding circuit and oscillation circuit. This makes the time resolution of the encoding and oscillation circuits constant, thereby allowing accurate frequency conversion.
    • 在根据由延迟电路顺序输出的延迟信号对脉冲相位差进行编码或控制振荡频率的装置中,可以使用单个延迟装置同时进行脉冲相位差的编码或振荡控制。 提供了一种变频器,包括由环形互连的反相电路构成的环形振荡器,用于基于环形振荡器输出的脉冲将参考信号的周期编码为二进制数字值的脉冲相位差编码电路 ,用于将二进制数字值乘以预定值以产生控制数据的运算电路和用于根据由环形振荡器输出的脉冲输出的控制数据在一个周期内产生脉冲信号的数字控制振荡电路, 环形振荡器由编码电路和振荡电路共享。 这使得编码和振荡电路的时间分辨率恒定,从而允许精确的频率转换。
    • 7. 发明授权
    • Physical quantity detecting device
    • 物理量检测装置
    • US6082196A
    • 2000-07-04
    • US845895
    • 1997-04-28
    • Shigeru NonoyamaShigenori YamauchiTakamoto Watanabe
    • Shigeru NonoyamaShigenori YamauchiTakamoto Watanabe
    • G01D5/24G01P15/125G01P15/13G01P15/14
    • G01P15/131G01P15/125
    • A physical quantity detecting is capable of easily adjusting sensitivity and an offset of a detected output without being increased in size. In a signal processor for driving a sensor element in which fixed electrodes are disposed on both sides of a movable electrode displaced in response to acceleration, a signal generator generates PWM signals PA and PB in which an invalid control period during which the fixed electrodes are both deenergized only during a period corresponding to data M3 stored in a memory, is, at a predetermined ratio, inserted into a valid control period during which the fixed electrodes are alternately energized and their energization ratio is controlled so that the movable electrode is placed in position. Since the sensitivity of the sensor element to the acceleration changes according to the length of the invalid control period which does not contribute to control of the position of the movable electrode, its sensitivity can be easily adjusted by simply changing the value set in the memory.
    • 物理量检测能够容易地调节灵敏度和检测输出的偏移而不增大尺寸。 在用于驱动传感器元件的信号处理器中,其中固定电极设置在响应于加速度而移位的可移动电极的两侧,信号发生器产生PWM信号PA和PB,其中固定电极均为无效控制周期 仅在对应于存储在存储器中的数据M3的周期期间被断电,以预定比例插入到固定电极交替通电的有效控制周期中,并且控制其通电率,使得可动电极位于 。 由于传感器元件对加速度的灵敏度根据无效控制周期的长度而变化,这对于可移动电极的位置的控制无助于其灵敏度,因此可以通过简单地改变在存储器中设置的值来容易地调整灵敏度。
    • 8. 发明授权
    • Programmable delay line programmable delay circuit and digital
controlled oscillator
    • 可编程延迟线可编程延迟电路和数字控制振荡器
    • US5465076A
    • 1995-11-07
    • US111488
    • 1993-08-25
    • Shigenori YamauchiTakamoto Watanabe
    • Shigenori YamauchiTakamoto Watanabe
    • H03K3/03H03K5/135H03L7/099H03B28/00H03K5/14H03K5/159
    • H03K5/135H03K3/0315H03L7/0996H03L7/0997
    • A programmable delay line comprises a plurality of delay stages connected in series, each of the delay stages including: a basic path for passing an input signal; a delay path for passing the input signal with a predetermined delay time; and a selector for selecting either the basic path or the delay path to pass the input signal in accordance with digital data externally inputted, wherein differences in times for passing the input signal through the basic path and through the delay path in the plurality delay stages are UD.2.sup.n (n=0, 1, 2 . . . ), UD being unit delay time. A programmable delay apparatus comprises: an oscillator and counter, which determine a coarse delay time in accordance with the upper bit data of control data, and a programmable delay line, which determines a fine delay time according to the lower bit data of the control data after the finish of the coarse delay time to obtain a total delay time. The counter provides a wide range of available delay times. The oscillator of the programmable delay apparatus can be controlled by a control signal. Addition of a feedback circuit for supplying the delay signal from the delay line as the control signal to the oscillator of the programmable delay apparatus provides a digital controlled oscillator.
    • 可编程延迟线包括串联连接的多个延迟级,每个延迟级包括:用于传递输入信号的基本路径; 用于以预定的延迟时间传递输入信号的延迟路径; 以及选择器,用于选择基本路径或延迟路径以根据外部输入的数字数据传递输入信号,其中通过基本路径的输入信号和通过多个延迟级中的延迟路径的时间差为 UD.2n(n = 0,1,2,...),UD为单位延迟时间。 一种可编程延迟装置包括:振荡器和计数器,其根据控制数据的高位数据确定粗延迟时间;以及可编程延迟线,其根据控制数据的较低位数据确定精细延迟时间 完成粗延时后获得总延迟时间。 该计数器提供广泛的可用延迟时间。 可编程延迟装置的振荡器可以通过控制信号来控制。 添加用于将来自延迟线的延迟信号作为控制信号提供给可编程延迟装置的振荡器的反馈电路提供数字控制振荡器。
    • 9. 发明授权
    • Ring oscillator and pulse phase difference encoding circuit
    • 环形振荡器和脉冲相位差编码电路
    • US5416444A
    • 1995-05-16
    • US177682
    • 1994-01-05
    • Shigenori YamauchiTakamoto WatanabeYoshinori Ohtsuka
    • Shigenori YamauchiTakamoto WatanabeYoshinori Ohtsuka
    • G01R25/08H03K3/03H03K5/13H03B5/00
    • H03K3/0315G01R25/08H03K5/131Y10S331/03
    • A ring oscillator for circulating pulse edges of two types therein includes an even number of inverting circuits connected in a ring. Each of the inverting circuits is operative to invert an input signal and output an inversion of the input signal. One of the inverting circuits is a first start inverting circuit which starts an operation of inverting an input signal in response to a first control signal applied from an external input. One of the inverting circuits except the first start inverting circuit and an inverting circuit immediately following the first start inverting circuit is a second start inverting circuit which starts an operation of inverting an input signal in response to a second control signal. A control signal inputting arrangement serves to input the second control signal to the second start inverting circuit during an interval from a first moment at which the first control signal is inputted into the first start inverting circuit and the first start inverting circuit starts the inverting operation to a second moment at which a pulse edge initially generated by the start of the inverting operation of the first start inverting circuit and travelling while being sequentially inverted by the inverting circuits enters the second start inverting circuit.
    • 用于循环两种类型的脉冲边缘的环形振荡器包括以环形连接的偶数反相电路。 每个反相电路用于反转输入信号并输出​​输入信号的反相。 反相电路中的一个是第一启动反相电路,其响应于从外部输入施加的第一控制信号开始反相输入信号的操作。 除了第一启动反相电路和紧接在第一启动反相电路之后的反相电路之一的反相电路中的一个是响应于第二控制信号开始反相输入信号的操作的第二启动反相电路。 控制信号输入装置用于在从第一控制信号被输入到第一起动反向电路的第一时刻开始间隔期间将第二控制信号输入到第二启动反转电路,并且第一启动反相电路开始转换操作 第二时刻,由第一起动反转电路的反相操作开始初始产生的脉冲沿并且由反相电路顺序反转的第二时刻进入第二启动反相电路。