公开(公告)号：US1955359A

公开(公告)日：1934-04-17

申请号：US9348526

申请日：1926-03-09

Applicant: WIRED RADIO INC

Inventor： ALFRED CROSSLEY

IPC: H03L1/04

CPC classification number: H03L1/04

公开(公告)号：US1904140A

公开(公告)日：1933-04-18

申请号：US45513030

申请日：1930-05-23

Applicant: WIRED RADIO INC

Inventor： JOHN OLSON

IPC: H03L1/04

CPC classification number: H03L1/04

公开(公告)号：US1898531A

公开(公告)日：1933-02-21

申请号：US34648129

申请日：1929-03-12

Applicant: WIRED RADIO INC

Inventor： GEBHARD LOUIS A ,  MEYER RAYMOND B

IPC: H03L1/04

CPC classification number: H03L1/04

公开(公告)号：US1862929A

公开(公告)日：1932-06-14

申请号：US34755429

申请日：1929-03-16

Applicant: WIRED RADIO INC

Inventor： GEBHARD LOUIS A

IPC: H03L1/04

CPC classification number: H03L1/04

公开(公告)号：US1835647A

公开(公告)日：1931-12-08

申请号：US51203631

申请日：1931-01-29

Applicant: WESTINGHOUSE ELECTRIC & MFG CO

Inventor： HARMON RALPH N

IPC: H03L1/04

CPC classification number: H03L1/04

公开(公告)号：US20240120880A1

公开(公告)日：2024-04-11

申请号：US17768232

申请日：2021-07-30

Applicant: DAISHINKU CORPORATION

Inventor： Takuya KOJO

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

CPC classification number: H03B5/04 ,  H03B5/32 ,  H03L1/028 ,  H03L1/04

Abstract: An oven-controlled crystal oscillator according to one or more embodiments may include including a core section hermetically encapsulated in a package for thermal insulation, wherein the core section is supported by the package via a core substrate, and the core section has a layered structure in which at least an oscillation IC, a crystal resonator and a heater IC are laminated in sequence.

公开(公告)号：US20230268886A1

公开(公告)日：2023-08-24

申请号：US18171723

申请日：2023-02-21

Applicant: SEIKO EPSON CORPORATION

Inventor： Norihito MATSUKAWA ,  Manabu KONDO

IPC: H03B5/32 ,  H03L1/04 ,  H03H9/19 ,  H01L23/00 ,  H01L23/40

CPC classification number: H03B5/32 ,  H03L1/04 ,  H03H9/19 ,  H01L24/05 ,  H01L24/48 ,  H01L23/40 ,  H01L2224/0557 ,  H01L2224/484

Abstract: An oscillator includes a first resonator element, a first package that accommodates the first resonator element, a relay substrate on which the first package is mounted, a heater element that is attached to the first package or the relay substrate, a second package that accommodates the first package, and a heat insulating member that is provided at least between the second package and the relay substrate or between the relay substrate and the first package.

公开(公告)号：US11671055B2

公开(公告)日：2023-06-06

申请号：US17534965

申请日：2021-11-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Norihito Matsukawa

IPC: H03B5/04 ,  H03B5/32 ,  H03L1/04 ,  H03H9/08 ,  H03L1/02

CPC classification number: H03B5/323 ,  H03B5/04 ,  H03B5/32 ,  H03H9/08 ,  H03L1/028 ,  H03L1/04 ,  H03B2200/0018

Abstract: There is configured an oscillator characterized by including an outer package having a housing space, an inner package housed in the housing space, a resonator element housed in the inner package, a heater element housed in the housing space, and fixed to the inner package, an oscillation circuit configured to oscillate the resonator element, a conducting member configured to electrically couple the inner package and the heater element to each other, and a first bonding wire configured to couple the heater element and the outer package to each other, and configured to electrically couple the conducting member and the outer package to each other.

公开(公告)号：US20190238138A1

公开(公告)日：2019-08-01

申请号：US16257492

申请日：2019-01-25

Applicant: Seiko Epson Corporation

Inventor： Yasuhiro SUDO ,  Hideo HANEDA

IPC: H03L1/02 ,  H03L1/04 ,  H03B5/32 ,  H03B5/04 ,  G06N3/08

CPC classification number: H03L1/025 ,  G06N3/084 ,  H03B5/04 ,  H03B5/32 ,  H03L1/04

Abstract: An integrated circuit device includes a digital signal processing circuit that generates frequency control data by performing a temperature compensation process by a neural network calculation process based on temperature detection data and an amount of change in time of the temperature detection data, and an oscillation signal generation circuit that generates an oscillation signal of a frequency set by the frequency control data using a resonator.

公开(公告)号：US20190103874A1

公开(公告)日：2019-04-04

申请号：US15723590

申请日：2017-10-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ville Kaajakari

IPC: H03L1/02 ,  H03L1/04 ,  H03B5/32 ,  H03B5/04 ,  H03H9/02

CPC classification number: H03L1/027 ,  H03B5/04 ,  H03B5/32 ,  H03H3/0077 ,  H03H9/02102 ,  H03H9/02448 ,  H03H9/08 ,  H03H9/2405 ,  H03L1/02 ,  H03L1/026 ,  H03L1/028 ,  H03L1/04

Abstract: A calibration system is provided for an oven controlled MEMS oscillator. The calibration system includes control circuitry that to separately selects predetermined target set-point values and controls a heater inside the oven controlled MEMS oscillator based on each of the selected target set-point values to adjust a set-point of the oven controlled MEMS oscillator. The system further includes an oscillation measurement circuit that measures respective oscillation frequencies at each adjusted set-point corresponding to each of the selected predetermined target set-point values. The measured oscillation frequencies can then be used to determine a target set-point operation value for the oven controlled MEMS oscillator, which can be sued to calibrate the oven controlled MEMS oscillator.