公开(公告)号：US20210265949A1

公开(公告)日：2021-08-26

申请号：US17180748

申请日：2021-02-20

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics S.r.l.

Inventor： Daniele Mangano ,  Benoit Marchand ,  Santo Leotta ,  Hamilton Emmanuel Querino De Carvalho

IPC: H03B5/32 ,  H03L1/04 ,  G04F5/06 ,  H03L1/02

Abstract: An embodiment of the present disclosure relates to a device comprising an electronic circuit; an oscillation circuit comprising a quartz crystal, configured to provide a clock signal to the electronic circuit; and a heater configured to increase the temperature of the quartz crystal.

公开(公告)号：US10819280B2

公开(公告)日：2020-10-27

申请号：US16440239

申请日：2019-06-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-hyuk Jang ,  Shin-woong Kim ,  Young-min Kim ,  Jae-young Kim ,  Chul-ho Kim ,  Sang-wook Han

IPC: H03B5/36 ,  G04F5/06 ,  H03K3/354 ,  H03K5/156 ,  H03B5/06

Abstract: A crystal oscillator including a feedback circuit, and a reference clock generating circuit including the crystal oscillator. The crystal oscillator is configured to generate an oscillating signal based on a natural frequency of a crystal. The crystal oscillator may include: a current generating circuit connected to a first node having a first voltage and a second node having a second voltage, and configured to output a first current to the second node; a feedback circuit connected to the generating circuit via the first and second nodes and configured to adjust a level of the second voltage by controlling a level of the first voltage; and a crystal circuit connected to the second node and configured to generate the oscillating signal based on the second voltage.

公开(公告)号：US10483913B2

公开(公告)日：2019-11-19

申请号：US15649475

申请日：2017-07-13

Applicant: QUALCOMM Incorporated

Inventor： Ali Najafi ,  Soheil Golara ,  Rabih Makarem ,  Shervin Moloudi

IPC: H03B5/36 ,  G04F5/06 ,  H03K3/354

Abstract: A Pierce oscillator is provided with a transconductance amplifier transistor having a DC drain voltage that is regulated to equal a reference voltage independently from a DC gate voltage for the transconductance amplifier transistor.

公开(公告)号：US09755612B2

公开(公告)日：2017-09-05

申请号：US14367803

申请日：2012-12-20

Applicant: The Swatch Group Research and Development Ltd

Inventor： Thierry Hessler ,  Silvio Dalla Piazza

IPC: B44C1/22 ,  H03H9/19 ,  B81C1/00 ,  G04C3/12 ,  G04F5/06 ,  G04G17/02 ,  G04B17/06 ,  G04B17/34 ,  B23K26/00 ,  F21V17/02 ,  H01L41/047 ,  H01L41/332 ,  H03H9/215

CPC classification number: H03H9/19 ,  B23K26/53 ,  B81B2201/0271 ,  B81B2203/0118 ,  B81C1/00595 ,  B81C2201/0143 ,  F21V17/02 ,  G04B17/066 ,  G04B17/345 ,  G04C3/12 ,  G04F5/063 ,  G04G17/02 ,  H01L41/0475 ,  H01L41/332 ,  H03H9/215

Abstract: A method for manufacturing a resonator in a substrate, including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; b) etching the at least one region to selectively manufacture the resonator.

公开(公告)号：US09143114B2

公开(公告)日：2015-09-22

申请号：US14258026

申请日：2014-04-22

Applicant: NIHON DEMPA KOGYO CO., LTD.

Inventor： Hidenori Harima

IPC: G04F5/06 ,  H03B5/32 ,  H03H9/10 ,  H03H9/17 ,  H03H9/05

CPC classification number: H03H9/10 ,  G04F5/063 ,  H03B5/32 ,  H03H9/0509 ,  H03H9/0519 ,  H03H9/0547 ,  H03H9/0561 ,  H03H9/1014 ,  H03H9/17

Abstract: A bonding type crystal controlled oscillator includes a crystal package and a circuit package bonded by two-tier bonding. An anisotropy conductive adhesive is interposed between back surface of the crystal package facing the circuit package and an upper surface of the circuit package facing the crystal package. The anisotropy conductive adhesive includes a thermosetting resin containing solder micro particles dispersed in the thermosetting resin. Assuming that a thickness of the output terminal formed at the crystal package is C μm, a thickness of the external terminal formed at the circuit package is D μm, and an average outside diameter of the solder micro particles dispersed in the anisotropy conductive adhesive is E μm, the dimensional relation is set to (C+D)>E.

Abstract translation: 键合型晶体振荡器包括晶体封装和通过双层结合键合的电路封装。 各向异性导电粘合剂介于面向电路封装的晶体封装的背面与面向晶体封装的电路封装的上表面之间。 各向异性导电粘合剂包括含有分散在热固性树脂中的焊料微粒的热固性树脂。 假设晶体封装上形成的输出端的厚度为Cμm，则形成在电路封装处的外部端子的厚度为Dμm，分散在各向异性导电粘合剂中的焊料微粒的平均外径为E μm，尺寸关系设定为（C + D）> E。

公开(公告)号：US20100321123A1

公开(公告)日：2010-12-23

申请号：US12809954

申请日：2008-12-04

Applicant: Arnaud Casagrande

Inventor： Arnaud Casagrande

IPC: H03B5/36 ,  G04F5/06

CPC classification number: H03B5/364 ,  H03B2200/0012 ,  H03B2200/0062

Abstract: The quartz oscillator circuit includes an inverter comprising two complementary PMOS and NMOS transistors (P1, N1) series-mounted with a current source (4) between two terminals of a supply voltage source to define an active branch. A source terminal of the PMOS transistor (P1) is connected to the current source, whereas a source terminal of the other NMOS transistor (N1) is connected to an earth terminal. Drain terminals of the transistors are connected at output to a first electrode (XOUT) of the quartz (3), whereas the gate terminals of the transistors are connected at input to a second electrode (XIN) of the quartz. A first phase shift capacitor (C1) is connected to the first electrode of the quartz, whereas a second capacitor (C2) is connected to the second electrode of the quartz. The oscillator circuit includes active polarisation means (2) arranged between the drain terminals and the gate terminals of the inverter transistors. These polarisation means can be a follower-mounted operational transconductance amplifier, whose impedance value is sufficiently high so as not to damage the transconductance of the active branch for generating an oscillation in the quartz.

Abstract translation: 石英振荡器电路包括一个反相器，它包括两个互补的PMOS和NMOS晶体管（P1，N1），串联安装在电源电压源的两个端子之间的电流源（4），以定义有源分支。 PMOS晶体管（P1）的源极端子连接到电流源，而另一个NMOS晶体管（N1）的源极端子连接到接地端子。 晶体管的漏极端子在输出端连接到石英（3）的第一电极（XOUT），而晶体管的栅极端子在输入端连接到石英的第二电极（XIN）。 第一相移电容器（C1）连接到石英的第一电极，而第二电容器（C2）连接到石英的第二电极。 振荡器电路包括布置在反相晶体管的漏极端子和栅极端子之间的有源极化装置（2）。 这些极化装置可以是跟随器安装的工作跨导放大器，其阻抗值足够高，以免损坏用于在石英中产生振荡的有源支路的跨导。

公开(公告)号：US20090257320A1

公开(公告)日：2009-10-15

申请号：US12009284

申请日：2008-01-17

Applicant: Hirofumi Kawashima

Inventor： Hirofumi Kawashima

IPC: H01L41/04 ,  H03B5/32 ,  G04F5/06 ,  H01L41/053

CPC classification number: H03B5/36 ,  H03H9/02023 ,  H03H9/02157 ,  H03H9/0547 ,  H03H9/1021 ,  H03H9/215

Abstract: An electronic apparatus comprises a display portion and at least one oscillating circuit comprising an amplifier, at least one resistor, a plurality of capacitors, and a unit having a case and a resonator. The resonator is vibratable in a flexural mode and has first and second vibrational arms, and at least one groove is formed in at least one of opposite main surfaces of each of the first and second vibrational arms, and at least one mounting arm protrudes from the base portion and extends in a common direction with at least one of the first and second vibrational arms. An output signal of the at least one oscillating circuit comprising the resonator is a clock signal for use in operation of the electronic apparatus to display time information at the display portion.

Abstract translation: 电子设备包括显示部分和至少一个包括放大器，至少一个电阻器，多个电容器以及具有壳体和谐振器的单元的振荡电路。 谐振器以弯曲模式可振动并且具有第一和第二振动臂，并且至少一个凹槽形成在第一和第二振动臂中的每一个的至少一个相对的主表面中，并且至少一个安装臂从 并且与第一和第二振动臂中的至少一个在共同的方向上延伸。 包括谐振器的至少一个振荡电路的输出信号是在电子设备的操作中用于在显示部分显示时间信息的时钟信号。

公开(公告)号：US06885615B1

公开(公告)日：2005-04-26

申请号：US09622685

申请日：1999-09-08

Applicant: Osamu Miyazawa ,  Yasuharu Hashimoto ,  Tsukasa Funasaka ,  Makoto Furuhata

Inventor： Osamu Miyazawa ,  Yasuharu Hashimoto ,  Tsukasa Funasaka ,  Makoto Furuhata

IPC: H01L41/09 ,  G04B19/24 ,  G04C3/12 ,  H02N2/00 ,  H02N2/10 ,  G04F5/06

CPC classification number: H01L41/0913 ,  H02N2/004 ,  H02N2/103

Abstract: A rectangular vibrating plate 10 in which a piezoelectric element and a reinforcing plate are stacked is supported on a main plate by a support member 11, and is urged toward the rotor 100 by an elastic force of the support member 11. This brings a projection 36 provided on the vibrating plate 10 into abutment with an outer peripheral surface of the rotor 100. In this construction, when the vibrating plate 10 vibrates in the horizontal direction in the figure by an applied voltage from a driving circuit (not shown), the rotor 100 is rotated in a clockwise direction in accordance with the displacement of the projection 36 due to the vibration.

Abstract translation: 堆叠有压电元件和加强板的矩形振动板10通过支撑构件11支撑在主板上，并且通过支撑构件11的弹力而朝向转子100施力。 这使得设置在振动板10上的突起36与转子100的外周表面邻接。 在这种结构中，当振动板10通过来自驱动电路（未示出）的施加电压在图中的水平方向上振动时，转子100根据突起36的位移而沿顺时针方向旋转，由于 振动。

公开(公告)号：US6147564A

公开(公告)日：2000-11-14

申请号：US262015

申请日：1999-03-04

Applicant: Shinji Nakamiya ,  Hiroshi Yabe ,  Tadao Kadowaki ,  Yoshiki Makiuchi

Inventor： Shinji Nakamiya ,  Hiroshi Yabe ,  Tadao Kadowaki ,  Yoshiki Makiuchi

IPC: G04F5/06 ,  G04G19/00 ,  H03B5/36 ,  H03B5/32 ,  H03L1/00 ,  H03L5/00

CPC classification number: H03B5/36 ,  G04F5/06 ,  G04G19/00

Abstract: An oscillation circuit including an electrostatic protective circuit connected between a signal path and this constant voltage V.sub.reg. It comprises a first electrostatic protective circuit portion that causes any electrostatic voltage of a first polarity that invades the signal path to be selectively diverted through a diode to the constant voltage V.sub.reg side of the circuit, and any electrostatic voltage of a second polarity that invades the signal path to be selectively diverted through another diode to the ground side. This ensures that the oscillation circuit is not affected by fluctuations in the power voltage from the main power source, enabling it to oscillate at a stable frequency.

Abstract translation: 包括连接在信号路径与该恒定电压Vreg之间的静电保护电路的振荡电路。 它包括第一静电保护电路部分，该第一静电保护电路部分使入侵信号路径的任何静电电压被选择性地通过二极管转移到电路的恒定电压Vreg侧;以及任何侵入该电路的第二极性的静电电压 信号路径被选择性地通过另一个二极管转移到地侧。 这确保了振荡电路不受来自主电源的电源电压的波动的影响，使其能够以稳定的频率振荡。

公开(公告)号：US5771180A

公开(公告)日：1998-06-23

申请号：US315938

申请日：1994-09-30

Applicant: Michael F. Culbert

Inventor： Michael F. Culbert

IPC: G04F5/06 ,  G04G3/02 ,  G01K15/00

CPC classification number: G04F5/06 ,  G04G3/02

Abstract: A real time clock includes an oscillator, a digital counter, a temperature sensor, and a digital processor. The digital processor can read the temperature measured by the temperature sensor and utilize this information to generate an adjustment value for the digital counter. The digital counter is coupled to the digital processor and has an adjustment stage which the digital processor writes into in order to compensate for any oscillator error due to temperature variation. The digital processor may also be coupled to memory storing a temperature adjustment look-up table for use in generating the adjustment value. A method of the present invention includes the initial steps of generating an adjustment look-up table and storing it in non-volatile memory. A method of the present invention further includes the ongoing steps of measuring an ambient temperature, generating an adjustment value, adjusting the digital counter to improve the accuracy of the real time clock, and storing a new alarm time for a future adjustment.

Abstract translation: 实时时钟包括振荡器，数字计数器，温度传感器和数字处理器。 数字处理器可以读取由温度传感器测量的温度，并利用该信息产生数字计数器的调整值。 数字计数器耦合到数字处理器，并且具有数字处理器写入的调整级，以便补偿由于温度变化引起的任何振荡器误差。 数字处理器还可以耦合到存储温度调节查找表的存储器，以用于生成调整值。 本发明的方法包括生成调整查找表并将其存储在非易失性存储器中的初始步骤。 本发明的方法还包括测量环境温度，产生调节值，调整数字计数器以提高实时时钟的精度以及存储用于将来调整的新的闹钟时间的持续步骤。