-
公开(公告)号：US20210018873A1
公开(公告)日：2021-01-21
申请号：US16931497
申请日：2020-07-17
发明人： Yutaka YAMAZAKI
摘要： A watch includes a chargeable power supply, a crystal oscillation circuit including a crystal oscillator and an oscillation circuit and configured to stop oscillating when a power supply voltage falls below an oscillation stop voltage and to start oscillating when the power supply voltage exceeds an oscillation start voltage, which is higher than the oscillation stop voltage, and a divider circuit that outputs a reference signal by dividing an oscillation signal output from the oscillation circuit. The watch also includes a temperature compensation circuit that performs a temperature compensation function operation that compensates for variation of the reference signal due to a temperature, a first voltage detection circuit that detects that the power supply voltage exceeded a first voltage that is set higher than the oscillation start voltage, and a control circuit that starts the temperature compensation function operation of the temperature compensation circuit when the first voltage detection circuit detects that the power supply voltage exceeded the first voltage, and subsequently continues the temperature compensation function operation even when the power supply voltage falls below the first voltage.
-
公开(公告)号：US10892734B2
公开(公告)日：2021-01-12
申请号：US16279059
申请日：2019-02-19
发明人： Atsushi Matsuo
摘要： A resonator element includes a first electrode that is installed on a resonance portion of one of main surfaces positioned on the front and rear surfaces of a substrate, and a second electrode that is installed on the resonance portion of the other of the main surfaces, an outer shape of the substrate includes a first side surface and a second side surface, are arranged in a second direction intersecting the first direction, the first side surface and the second side surface respectively include an inclined surface, the first electrode includes a first lead electrode installed on the inclined surface of the first side surface, a second electrode includes the second lead electrode installed on the inclined surface of the second side surface, and an angle formed between the inclined surface and the main surface is equal to or greater than 52° and equal to or less than 62°.
-
公开(公告)号：US10819276B1
公开(公告)日：2020-10-27
申请号：US16370602
申请日：2019-03-29
发明人： Randall L. Kubena , Walter S. Wall
摘要： A RF antenna or sensor comprising substrate with at least a pair of resonators bonded thereto, whereon a first one of the at least a pair of resonators is coated with a magnetostrictive film and a second one of the at least a pair of resonators is not coated with a magnetostrictive film. The resonators are preferably connected to sustaining circuits to form oscillators and the oscillators a preferably used within a phase lock loop to detect the magnetic component of an incident RF field with a bandwidth determined by the phase lock loop. Also disclosed is a method of making a RF sensor or antenna comprises providing a substrate of a semiconductor material, simultaneously forming two resonators on the substrate, and during the forming of the resonators a resist coating partially covering a first one of the resonators and completely covering a second one of the resonators is applied. Then, a magnetostrictive material is deposited to regions not covered by the resist coating. Thereafter, the resist coating is removed thereby leaving the magnetostrictive material deposited on only one of the two resonators.
-
公开(公告)号：US10797705B2
公开(公告)日：2020-10-06
申请号：US16561397
申请日：2019-09-05
发明人： Fumikazu Komatsu , Minoru Kozaki
IPC分类号： H03K19/0185 , H03F3/45 , H03K19/0175 , H03F3/72 , H03B5/32
摘要： A circuit device includes first and second output signal lines from which first and second output signals constituting differential output signals are output, and first to n-th output drivers coupled to the first and second output signal lines. In a first mode, i number of output drivers of the first to n-th output drivers drive the first and second output signal lines based on first and second input signals constituting differential input signals. In a second mode, j number of output drivers of the first to n-th output drivers drive the first and second output signal lines based on the first and second input signals.
-
公开(公告)号：US10797677B2
公开(公告)日：2020-10-06
申请号：US16263070
申请日：2019-01-31
申请人： KYOCERA Corporation
发明人： Masatoshi Yumura , Takanori Maeno
摘要： A crystal blank includes a pair of tableland-shaped first mesa parts projecting from a flat plate and a pair of tableland-shaped second mesa parts projecting from the pair of first mesa parts. The flat plate's length in a long direction is less than 1000 μm. The first mesa part is on an inner side of the flat plate's major surface. The second mesa part is on the first mesa part's inner side of an upper surface's outer edge at two ends of the long direction and has a width equivalent to the first mesa part's upper surface at two sides of a short direction. An excitation electrode reaches the second mesa part's outer edge of the upper surface, is located on the inner side of the first mesa part, and on the second mesa part's inner side of the upper surface's outer edge at two sides of the short direction.
-
公开(公告)号：US20200313070A1
公开(公告)日：2020-10-01
申请号：US16828631
申请日：2020-03-24
发明人： Yoshihiko YOKOYAMA
IPC分类号： H01L41/18 , H03H9/19 , H01L41/047 , H01L41/053 , H01L41/09 , H03H9/10 , H01L41/312 , H03B5/32
摘要： A resonance device includes a first substrate formed of a semiconductor material or a glass material and having a recess which has an opening in a first main surface, a second substrate bonded to the first main surface and configured to close the opening of the recess, and a resonator element housed in the recess. An inner surface of the recess includes a side surface, a bottom surface, and a connection surface connecting the side surface and the bottom surface, the connection surface is a curved surface, and L1
-
公开(公告)号：US20200280299A1
公开(公告)日：2020-09-03
申请号：US16802146
申请日：2020-02-26
发明人： Shinya AOKI , Byonhaku YU , Atsushi MATSUO
摘要： A resonator element includes a quartz crystal substrate including a supporting section, a resonating section, and a coupling section coupling the supporting section and the resonating section and having thickness smaller than the thickness of the supporting section, the supporting section including a first principal plane and a first side surface coupling the first principal plane and the coupling section, a first excitation electrode disposed in the resonating section, a second excitation electrode disposed in the resonating section and overlapping the first excitation electrode via the resonating section, and first and second pad electrodes including portions disposed on the first principal plane, the first and second pad electrodes being electrically coupled to the first and second excitation electrodes.
-
公开(公告)号：US20200274493A1
公开(公告)日：2020-08-27
申请号：US16801191
申请日：2020-02-26
摘要： A sensing sensor includes an oscillator circuit, a base, a connection portion, and a temperature changing unit. The oscillator circuit oscillates the piezoelectric resonator. The base includes a base main body in which a depressed portion is provided and a lid portion at one side, supports the piezoelectric resonator at another side, and is for taking the oscillation frequency to an outside of the sensing sensor. The depressed portion houses the oscillator circuit. The lid portion covers the depressed portion. The connection portion is disposed at the one side of the base and connected to a cooling mechanism for cooling the base from the one side. The temperature changing unit is interposed between the piezoelectric resonator and the base, so as to cool and heat the piezoelectric resonator and transfer a heat radiated for cooling the piezoelectric resonator from the other side of the base to the one side.
-
公开(公告)号：US20200274489A1
公开(公告)日：2020-08-27
申请号：US16797279
申请日：2020-02-21
发明人： Ryuta NISHIZAWA , Shinya AOKI
摘要： An oscillator includes a first container that includes a first base substrate and a first lid and that has a first internal space, a second container that is fixed to the first base substrate in the first internal space and that includes a second base substrate and a second lid and that has a second internal space, a resonator element that is disposed on the lower surface side of the second base substrate in the second internal space, a temperature sensor that is disposed on the upper surface side of the second base substrate, a first circuit element that includes an oscillation circuit and a second circuit element that is fixed to the first base substrate in the first internal space and that includes a frequency control circuit that controls a frequency of the oscillation signal output by the oscillation circuit. The second container and the second circuit element are arranged side by side in plan view.
-
公开(公告)号：US20200271721A1
公开(公告)日：2020-08-27
申请号：US16800025
申请日：2020-02-25
发明人： Tsuyoshi YONEYAMA
IPC分类号： G01R31/317 , H03B5/32 , G06F1/14
摘要： A real-time clock module includes an oscillation circuit, a storage unit that stores adjustment data used to adjust an oscillation frequency of the oscillation circuit, a data abnormality determination circuit that compares first data based on the adjustment data with second data based on the adjustment data to determine whether or not at least one of the first data and the second data is abnormal, and a flag register that holds a data abnormality flag in which a first value indicating that the first data and the second data are normal, or a second value indicating that at least one of the first data and the second data is abnormal is set, based on a signal from the data abnormality determination circuit.
-
-
-
-
-
-
-
-
-
搜索结果
2205 条记录 (耗时 0.033 秒)
