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1. 发明专利

JPH0253309A CONSTANT CURRENT CIRCUIT 失效
公开(公告)号：JPH0253309A
公开(公告)日：1990-02-22
申请号：JP20553788
申请日：1988-08-18
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： G05F3/24 , G05F3/26 , H03F1/30 , H03F3/343
摘要： PURPOSE:To guarantee the operation of a load by adding a nonconductive transistor(TR) leaking at the radiation of light so as to increase the current supply capability of TRs being components of a current mirror. CONSTITUTION:A nonconductive P-channel MOS TR 101 is leaked in the radiation of light to increase the gate potential of N-channel MOS TRs 202, 203 thereby increasing the current fed to a load 204. A current IL fed to the load 204 is expressed as IL=K(VGS-VT) , where VGS is a gate potential of the N- channel MOS TR 203, 0V is given to a source potential as a reference level, K is a current drive coefficient and VT is a threshold level. When the nonconductive P-channel MOS TR 101 is leaked in the radiation of light and the gate potential VGS is increased to VGS+DELTAV, the current IL is expressed as IL=K(VGS+DELTAV-VT) and then increased. Thus, the current to the load is increased.

2. 发明专利

JPS63252004A CRYSTAL OSCILLATION CIRCUIT 失效
公开(公告)号：JPS63252004A
公开(公告)日：1988-10-19
申请号：JP8736287
申请日：1987-04-09
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： H03B5/32 , G04G3/00
摘要： PURPOSE:To stabilize oscillations and to minimize variation in switching frequency with temperature by varying a crystal oscillation frequency by variation in the current coefficient of an oscillation inverter, and also varying the value of a power source which drives an oscillation circuit with temperature. CONSTITUTION:This crystal oscillation circuit is constituted by connecting a crystal vibrator 101 and a resistance means 102 which determines the DC operation point of the oscillation inverter 105 to the input and output of the oscillation inverter 105 in parallel. In this constitution, when the potential at a switching terminal 114 is held high, an inverter 107 is enabled to operate and parallel to the inverter 105, so that corresponds to an increase in the current coefficient of the inverter 105. The deviation of the frequency variation in oscillation frequency is about 5 ppm and varies respectively when the inverters 105, 107, and 110 are of the same size. The current coefficient of the oscillation inverter is switched to vary the oscillation frequency.

3. 发明专利

JPS63169828A OSCILLATOR WITH TEMPERATURE COMPENSATION 失效
公开(公告)号：JPS63169828A
公开(公告)日：1988-07-13
申请号：JP130987
申请日：1987-01-07
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： H03L1/02
摘要： PURPOSE:To attain temperature compensation with low power consumption and high accuracy by providing a frequency division circuit frequency-dividing an oscillated output signal, a compensation means controlling the oscillated frequency of an oscillation means by the output of a temperature measurement means and a power supply means supplying a constant voltage to the oscillation means. CONSTITUTION:The output signal of an oscillating circuit 101 is frequency- divided into a desired frequency by a frequency divider circuit A102 and a frequency divider circuit B103. The temperature measuring means 109 generates an analog signal in response to an ambient temperature theta and the temperature information is fed to a correction deciding means 107 and a power supply control circuit 104 through an A/D conversion 108. The correction means A105, B106 are controlled by the output of the means 107 to control the oscillated frequency of the oscillating circuit 101 and the frequency division ratio of the frequency divider circuits A102, B103 to apply temperature correction. Moreover, the control circuit 104 controls the power supply of the oscillation circuit 101 and the frequency divider circuit A102 according to the said temperature information to improve the low current consumption and stable oscillation.

4. 发明专利

JPS63169569A VOLTAGE COMPARING CIRCUIT 失效
公开(公告)号：JPS63169569A
公开(公告)日：1988-07-13
申请号：JP130887
申请日：1987-01-07
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： G01R15/08 , G01P3/46 , G01R19/10 , G01R19/165
摘要： PURPOSE:To compare many voltages sequentially with a small number of elements by operating only one desired couple of positive and negative input active elements among plural elements and controlling input so that others are not present in consideration of a circuit. CONSTITUTION:The circuit consists of N channel MOS enhancement type transistors (NTR)108-111 and P channel MOS enhancement type transistors (PTR)101-107 and the inputs of the PTRs 104-107 are denotes as -A, -B, +B, and +A. Here, the voltage from a terminal 116 is applied to the -A and +B and then the PTRs 104 and 106 are cut off and enter an absent state in consideration of the circuit, so that this circuit becomes a circuit which compares the voltages at the -B and +A with each other. Further, the voltage from the terminal 116 is applied to the -B and +B and then the voltages at the -A and +A are compared with each other. Thus, many voltage comparing operations are performed sequentially with a small number of elements.

5. 发明专利

JPS61116406A Electronic clock with temperature compensation 失效
标题翻译：电子钟与温度补偿
公开(公告)号：JPS61116406A
公开(公告)日：1986-06-03
申请号：JP23736584
申请日：1984-11-09
申请人： Seiko Epson Corp
发明人： YAMADA ICHIRO
IPC分类号： G04G3/04 , G04G3/00 , G04G3/02 , H03B5/32
摘要： PURPOSE:To execute the temperature compensation with high accuracy by executing the special calculation to square-law information obtained from temperature information from a temperature measuring means and on the one hand, controlling the action of the frequency dividing circuit and on the other hand, the crystal oscillating circuit respectively. CONSTITUTION:The signal of a crystal oscillating circuit 101 is divided up to a timer unit signal by frequency dividing circuits 102 and 103, on the other hand, the contents of the frequency dividing circuit 103 is compared with the contents of the setting A123 by a comparing circuit 122, a gate is opened at the special time width only, and the output signal of a ring oscillator 121, in which an oscillating frequency is changed in proportion to temperature, is counted by a counter B. After the counting data are reflected so that the right and left can be the same to a peak temperature of a crystal vibrator, the time width in proportion to the square-law of temperature information is made by a square-law circuit 127. Based upon the quotient obtained by dividing the square-law information with the fixed divisor, the action of the frequency dividing circuit is controlled, and on the other hand, based upon the remainder obtained by dividing with the designated divisor while the value in proportion to the quotient from the square-law information is subtracted, the crystal oscillating circuit is controlled. Thus, the correction can be executed by changing the value of the divisor and the producing variance influence can not be received.
摘要翻译：目的：通过对来自温度测量装置的温度信息获得的平方律信息进行专门的计算，并且一方面控制分频电路的动作，以高精度执行温度补偿，另一方面，晶体振荡电路。构成：通过分频电路102和103将晶体振荡电路101的信号划分为定时器单元信号，另一方面，将分频电路103的内容与设置A123的内容比较a 比较电路122，仅以特殊时间宽度打开门，并且通过计数器B对振荡频率与温度成比例地变化的环形振荡器121的输出信号进行计数。反映计数数据使得左右可以与晶体振子的峰值温度相同，由平方律电路127进行与温度信息的平方律成比例的时间宽度。根据通过将具有固定除数的平方律信息，分频电路的动作被控制，另一方面，基于通过用指定除数除以余数而在pr中的值从平方律信息中减去与商的比例，晶体振荡电路被控制。因此，可以通过改变除数的值来执行校正，并且不能接收产生方差的影响。

6. 发明专利

JPS61112407A Electronic clock with temperature compensation 失效
标题翻译：电子钟与温度补偿
公开(公告)号：JPS61112407A
公开(公告)日：1986-05-30
申请号：JP23386184
申请日：1984-11-06
申请人： Seiko Epson Corp
发明人： YAMADA ICHIRO
IPC分类号： G04G3/04 , G04G3/00 , G04G3/02 , H03B5/32
摘要： PURPOSE:To correct the variance of mass-production of the secondary temperature characteristic with a desired accuracy independently of other mass- production variances by changing the frequency dividing ratio of a counter in response to the secondary temperature characteristic of a crystal oscillator. CONSTITUTION:Numerical information proportional to a representative oscilla tion frequency temperature deviation is outputted from a ROM 112 by tempera ture information from a temperature measuring circuit 111 and a number of pulses proportional to the representative oscillating frequency temperature is fed to a counter A 108 from a time width generating circuit 113 and a gate circuit 110. The content of a counter B 106 is fetched in a latch 105, a compensa tion circuit A 103 controls the oscillating frequency of a crystal oscillator 101 and a compensation circuit B104 applies proper interruption to the frequency division circuit 102 depending on the content of a counter C 107 to control the frequency dividing ratio of the frequency division circuit 102.
摘要翻译：目的：通过根据晶体振荡器的二次温度特性改变计数器的分频比，通过独立于其他批量生产方差，以期望的精度来校正二次温度特性的批量生产方差。构成：与来自温度测量电路111的温度信息从ROM 112输出与代表性振荡频率温度偏差成比例的数字信息，并且与代表性振荡频率温度成比例的脉冲数从一个时间宽度产生电路113和门电路110.计数器B 106的内容被提取在锁存器105中，补偿电路A 103控制晶体振荡器101的振荡频率，并且补偿电路B104对分频电路102根据计数器C 107的内容来控制分频电路102的分频比。

7. 发明专利

JPS6188180A Electronic time piece provided with temperature compensation 失效
标题翻译：电子时间片提供温度补偿
公开(公告)号：JPS6188180A
公开(公告)日：1986-05-06
申请号：JP18497384
申请日：1984-09-04
申请人： Seiko Epson Corp
发明人： YAMADA ICHIRO
IPC分类号： G04G3/04 , G04F5/06 , G04G3/00 , G04G3/02
CPC分类号： G04F5/06
摘要： PURPOSE:To compensate the dispersion of secondary temperature characteristic values in a mass production accurately independently of the other mass production variance by changing the frequency dividing ratio of a frequency dividing circuit for dividing a reference clocking signal of a crystal oscillator in accordance with the secondary temperature characteristic value of the crystal oscillator. CONSTITUTION:A ROM112 outputs oscillated frequency temperature deviation value corresponding to a peripheral temperature measured by a temperature measuring circuit 111 and a time width generating circuit 113 outputs a signal having pulse width corresponding to the input information and the output signal is inputted to a gate circuit 110 as a gate signal. Consequently, a counter 108 varies the frequency dividing ratio set up by a setting means 109 in accordance with the input of the gate circuit 110. The output of the counter 108 is inputted to counters 106, 107, a compensation circuit 103 controls the oscillation frequency of a crystal oscillator 101 in accordance with the contents of the counter 106 and a compensation circuit 104 interrupts an frequency dividing circuit 102 in accordance with the contents of the counter 107 to control the frequency dividing ratio of the circuit 102.
摘要翻译：目的：通过根据二次温度改变用于分割晶体振荡器的参考时钟信号的分频电路的分频比，来准确地独立于其他批量生产方差来补偿批量生产中二次温度特性值的分散晶振的特征值。构成：ROM112输出对应于由温度测量电路111测量的外围温度的振荡频率温度偏差值，时间宽度发生电路113输出具有与输入信息相对应的脉冲宽度的信号，输出信号被输入到门电路 110作为门信号。因此，计数器108根据门电路110的输入改变由设置装置109设置的分频比。计数器108的输出被输入到计数器106,107，补偿电路103控制振荡频率根据计数器106的内容，晶体振荡器101和补偿电路104根据计数器107的内容中断分频电路102，以控制电路102的分频比。

8. 发明专利

JPS6129218A Temperature compensating electronic clock 失效
标题翻译：温度补偿电子钟
公开(公告)号：JPS6129218A
公开(公告)日：1986-02-10
申请号：JP15038584
申请日：1984-07-19
申请人： Seiko Epson Corp
发明人： YAMADA ICHIRO
IPC分类号： H03B5/32 , H03L1/02
摘要： PURPOSE: To enable to correct valiance of secondary characteristic of a crystal oscillator at high accuracy by adding a counter that can set frequency dividing ratio.
CONSTITUTION: A counter 201 and a setting device 202 that sets frequency dividing ratio are added between a gate circuit 107 and a counter 103. The counter 201 counts frequency dividing signals 108 of a frequency dividing circuit 102 making output from a squaring circuit 105 a gate signal, and supplies the result to counters 103, 104. By setting frequency dividing ratio of the counter 201 by the setting device 202, fluctuation of secondary temperature coefficient of a crys- tal oscillator 101 can be absorbed by frequency dividing ratio of the counter 201. Thus, valiance of secondary characteristic of the crystal oscillator can be corrected at high accuracy.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过添加可设定分频比的计数器，能够高精度地校正晶体振荡器的次级特性。构成：设置分频比的计数器201和设定装置202被添加在门电路107和计数器103之间。计数器201对从分频电路105输出的分频电路102的分频信号108进行计数，信号，并将结果提供给计数器103,104。通过由设定装置202设定计数器201的分频比，可以通过计数器201的分频比来吸收振荡器101的二次温度系数的波动因此，可以高精度地校正晶体振荡器的次级特性的质量。

9. 发明专利

JPH0557773B2 失效
公开(公告)号：JPH0557773B2
公开(公告)日：1993-08-24
申请号：JP22092383
申请日：1983-11-24
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： H03K23/00 , H03K3/356 , H03K21/40 , H03K23/44 , H03K23/60

10. 发明专利

JPH0541631A DELAY CIRCUIT 失效
公开(公告)号：JPH0541631A
公开(公告)日：1993-02-19
申请号：JP19674991
申请日：1991-08-06
申请人： SEIKO EPSON CORP
发明人： YAMADA ICHIRO
IPC分类号： H03H11/26
摘要： PURPOSE:To obtain the circuit having a stable delay value independently of a change in a power supply voltage and an ambient temperature by selecting an output voltage of a constant voltage circuit to have a temperature characteristic equal to the temperature characteristic of a threshold voltage of a MOS transistor (TR) being a component of the circuit. CONSTITUTION:A constant voltage circuit generates a difference of prescribed voltages Vth (less temperature dependency) + a voltage equal to a threshold voltage Vth of an N-channel MOS TR. A voltage difference between a Vth of a PMOS TR 201 and a Vth of a PMOS TR 202 is a noninverting input 209 of a voltage comparator 205, and a voltage subtracting a Vth of an NMOS TR 206 from an output of the voltage comparator 205 is a negative input 210 of the voltage comparator 205. Thus, an output voltage Vout of the voltage comparator 205 is expressed as Vout=Vth201-Vth+202+Vth206 and a voltage of the difference of prescribed voltages Vth + a voltage equal to a threshold voltage Vth of the N-channel MOS TR is obtained.

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