公开(公告)号：US20130106523A1

公开(公告)日：2013-05-02

申请号：US13663481

申请日：2012-10-30

Applicant: Nihon Dempa Kogyo Co., Ltd.

Inventor： KAZUO AKAIKE ,  TSUKASA KOBATA ,  SHINICHI SATO ,  MITSUAKI KOYAMA

IPC: G01R23/00

CPC classification number: H03L7/18

Abstract: An oscillator includes a nominal frequency output unit, a frequency adjustment amount output unit, a gain output unit, a multiplier, and an adder. The nominal frequency output unit is configured to output a first digital value corresponding to the nominal frequency. The frequency adjustment amount output unit is configured to output a second digital value corresponding to a rate of frequency in order to set a frequency adjustment amount with respect to the nominal frequency using the rate of frequency. The gain output unit is configured to output a third digital value corresponding to a gain to be multiplied by the second digital value. The multiplier is configured to multiply the second digital value by the third digital value, thus outputting a fourth digital value. The adder adds the first digital value and the fourth digital value to output the added result as a setting signal of frequency.

Abstract translation: 振荡器包括标称频率输出单元，频率调整量输出单元，增益输出单元，乘法器和加法器。 标称频率输出单元被配置为输出对应于标称频率的第一数字值。 频率调整量输出单元被配置为输出与频率对应的第二数字值，以便使用频率来设定相对于标称频率的频率调节量。 增益输出单元被配置为输出与要乘以第二数字值的增益相对应的第三数字值。 乘法器被配置为将第二数字值乘以第三数字值，从而输出第四数字值。 加法器将第一数字值和第四数字值相加，以输出相加结果作为频率设定信号。

公开(公告)号：US20150130546A1

公开(公告)日：2015-05-14

申请号：US14538785

申请日：2014-11-11

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： TSUKASA KOBATA

IPC: H03B5/04 ,  G05D23/19 ,  H03B5/32

CPC classification number: G05D23/2036

Abstract: A temperature control device includes a temperature detector, a difference operation unit, a controller, a saturation processing circuit unit, a rewritable storage unit, and a conversion unit. The difference operation unit operates a digital value corresponding to a difference value between a detected temperature value and a target temperature. The controller calculates a manipulated variable using the digital value operated by the difference operation unit. The saturation processing circuit unit includes a digital circuit to limit an output value of the controller to a pre-set upper limit value. The rewritable storage unit stores the upper limit value read from a storage area of the rewritable storage unit and input into the saturation processing circuit unit. The conversion unit converts the output value of the saturation processing circuit unit into an analog signal to output the converted value as a control command value to the heater.

Abstract translation: 温度控制装置包括温度检测器，差分运算单元，控制器，饱和处理电路单元，可重写存储单元和转换单元。 差异运算部对与检测出的温度值和目标温度之间的差分值对应的数字值进行动作。 控制器使用由差分运算单元操作的数字值来计算操作变量。 饱和处理电路单元包括将控制器的输出值限制在预设上限值的数字电路。 可重写存储单元存储从可重写存储单元的存储区域读取的上限值并输入到饱和处理电路单元。 转换单元将饱和处理电路单元的输出值转换为模拟信号，将转换后的值作为控制指令值输出到加热器。

公开(公告)号：US20140297056A1

公开(公告)日：2014-10-02

申请号：US14226825

申请日：2014-03-27

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： KAZUO AKAIKE ,  TSUKASA KOBATA

IPC: G05D23/19

CPC classification number: G05D23/20 ,  G05D23/1919

Abstract: A temperature controller for controlling a temperature of a heated body heated by a heater to a target temperature. The temperature controller includes a temperature detection unit, a difference computation unit, a controller, a comparison unit, an abnormal event detection unit, and a power feeding stopping unit. The abnormal event detection unit is configured to output a second signal that is an abnormal event detection signal when the first signal continues to be output for a period of time exceeding a pre-set period of time. The power feeding stopping unit is configured to stop power feeding to the heater when the second signal is output. The power feeding amount to the heater is controlled based on the manipulated variable computed by the controller.

Abstract translation: 一种温度控制器，用于将由加热器加热的被加热体的温度控制到目标温度。 温度控制器包括温度检测单元，差分计算单元，控制器，比较单元，异常事件检测单元和供电停止单元。 异常事件检测单元被配置为当第一信号继续输出超过预定时间段的时间段时，输出作为异常事件检测信号的第二信号。 供电停止单元被配置为当输出第二信号时停止向加热器供电。 基于由控制器计算的操作变量来控制加热器的供电量。

公开(公告)号：US20140003166A1

公开(公告)日：2014-01-02

申请号：US13925841

申请日：2013-06-25

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： TSUKASA KOBATA

IPC: G11C7/00

CPC classification number: G11C7/00 ,  G06F13/385

Abstract: Electronic equipment according to the present disclosure includes a writable non-volatile memory, a plurality of volatile memories, and a sequencer. The writable non-volatile memory stores an operation parameter group required to operate the electronic equipment. Respective addresses are assigned to the plurality of volatile memories. The plurality of volatile memories includes a specified volatile memory. The specified volatile memory stores a part of the operation parameters among the operation parameter group. The specified volatile memory is accessible by inputting an Enable signal. The sequencer can read and write the non-volatile memory when the Enable signal allows an operation parameter stored in the volatile memory to be written to the non-volatile memory.

Abstract translation: 根据本公开的电子设备包括可写非易失性存储器，多个易失性存储器和定序器。 可写非易失性存储器存储操作电子设备所需的操作参数组。 相应的地址被分配给多个易失性存储器。 多个易失性存储器包括指定的易失性存储器。 指定的易失性存储器存储操作参数组中的一部分操作参数。 通过输入启用信号可以访问指定的易失性存储器。 当使能信号允许将易失性存储器中存储的操作参数写入非易失性存储器时，定序器可以读写非易失性存储器。

公开(公告)号：US20190158023A1

公开(公告)日：2019-05-23

申请号：US15505109

申请日：2015-08-12

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： TSUKASA KOBATA

IPC: H03B5/32 ,  H03L1/04 ,  H03L1/02 ,  H03L7/099 ,  H03L7/24

Abstract: In an OCXO, which outputs an oscillation frequency by oscillating a crystal resonator, a correspondence relationship between an oscillation frequency and an elapsed time at a beginning after a start of oscillation of a first crystal resonator is acquired. Based on the acquired result, data after the beginning and corresponding to a correspondence relationship between an accumulated elapsed time of the oscillation and the oscillation frequency after the start of the oscillation is obtained. Based on the accumulated elapsed time of the oscillation and this data, a frequency setting value is corrected. While an output frequency of the first crystal resonator fluctuates in association with the elapsed time, the output frequency is corrected by the frequency correction value corresponding to the accumulated elapsed time, thereby stabilizing the oscillation frequency.

公开(公告)号：US20170133984A1

公开(公告)日：2017-05-11

申请号：US15321752

申请日：2015-06-23

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： KAZUO AKAIKE ,  TSUKASA KOBATA ,  Tomoya YORITA

IPC: H03B5/32 ,  H03B5/04 ,  H03L1/02 ,  H03L7/099 ,  H03L7/24

CPC classification number: H03B5/32 ,  H03B5/04 ,  H03B5/36 ,  H03B2200/0034 ,  H03L1/02 ,  H03L1/028 ,  H03L7/08 ,  H03L7/099 ,  H03L7/24

Abstract: An oscillator detects a temperature of an atmosphere where a crystal resonator for an oscillation output is placed using a temperature detector to stabilize the temperature by controlling a temperature of a heater based on a temperature detection value. The device includes a buffer amplifier interposed in a signal path of a control signal generated based on the temperature detection value, a heater disposed such that a collector and an emitter position between a power source unit and a ground and constituted of a transistor having a base connected to an output port of the buffer amplifier, and a first differential amplifier disposed to adjust a gain of the buffer amplifier to cancel voltage fluctuation of the power source unit and amplifying a difference between a voltage corresponding to the supply voltage and a preliminarily set voltage to input to a gain adjustment port of the buffer amplifier.

公开(公告)号：US20140292416A1

公开(公告)日：2014-10-02

申请号：US14226828

申请日：2014-03-27

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： KAZUO AKAIKE ,  TSUKASA KOBATA

IPC: H03L7/06

CPC classification number: H03L7/099 ,  H03L7/06 ,  H03L7/083 ,  H03L7/24

Abstract: An oscillator configured to obtain a frequency output corresponding to a frequency setting value includes: an oscillation circuit portion that receives the frequency setting value; a setting value output portion that outputs a digital value for designating the frequency setting value; an interpolation circuit portion that performs interpolation for a digital value of lower-order bits out of the digital value output from the setting value output portion; and an adder that adds an output of the interpolation circuit portion and a digital value of higher-order bits out of the digital value output from the setting value output portion, wherein a signal output from the interpolation circuit portion is sequential data having first and second values different from each other, and output counts of the first and second values are determined based on a ratio corresponding to the digital value of the lower-order bits.

Abstract translation: 被配置为获得与频率设定值对应的频率输出的振荡器包括：振荡电路部，其接收频率设定值; 设定值输出部，输出用于指定频率设定值的数字值; 内插电路部，对从设定值输出部输出的数字值中的低位位的数字值进行插值; 以及加法器，其将所述内插电路部分的输出和从所述设定值输出部分输出的数字值中的高位位的数字值相加，其中从所述插值电路部分输出的信号是具有第一和第二 值彼此不同，并且基于与低阶位的数字值相对应的比率来确定第一和第二值的输出计数。

公开(公告)号：US20140085015A1

公开(公告)日：2014-03-27

申请号：US14037400

申请日：2013-09-26

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： KAZUO AKAIKE ,  TSUKASA KOBATA ,  SHINICHI SATO

IPC: H03L1/04

CPC classification number: H03L1/04 ,  H03L1/026 ,  H03L1/027 ,  H03L7/18

Abstract: An oscillation device is provided. The oscillation device includes: a main circuit portion, a heating unit, first and second crystal units, first and second oscillator circuits, a frequency difference detector, a first addition unit, an integration circuit unit, a circuit unit configured to control an electric power to be supplied to the heating unit, a compensation value obtaining unit, and a second addition unit. The compensation value obtaining unit is configured to obtain a frequency compensation value for compensating an output frequency of the main circuit portion based on an integrated value output from the integration circuit unit, and based on a change in the clock signal due to a difference between the temperature of the atmosphere and the temperature setting value of the heating unit. The second addition unit is configured to add the frequency compensation value to a frequency setting value.

Abstract translation: 提供振荡装置。 振荡装置包括：主电路部分，加热单元，第一和第二晶体单元，第一和第二振荡器电路，频率差检测器，第一加法单元，积分电路单元，被配置为控制电力的电路单元 被提供给加热单元，补偿值获取单元和第二加法单元。 补偿值获取单元被配置为基于从积分电路单元输出的积分值来获得用于补偿主电路部分的输出频率的频率补偿值，并且基于由于时钟信号之间的差异而导致的时钟信号的变化 气氛的温度和加热单元的温度设定值。 第二加法单元被配置为将频率补偿值添加到频率设定值。