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1. 发明申请

US20220123747A1 APPARATUS COMPRISING A MOVABLE OBJECT AND A DEVICE FOR DETECTING A MOVEMENT OF THE OBJECT, INPUT DEVICE INCLUDING THE APPARATUS, AND METHOD OF OPERATING THE APPARATUS 有权
公开(公告)号：US20220123747A1
公开(公告)日：2022-04-21
申请号：US17499500
申请日：2021-10-12
申请人： CHERRY EUROPE GMBH
发明人： Eduard RUFF
IPC分类号： H03K17/95 , H03K17/972 , H01F21/02
摘要： The invention relates to an apparatus comprising a primary coil, an object movable relative to the primary coil, and a device for detecting a movement of the object relative to the primary coil. This device comprises an electrical resonance circuit and at least one secondary coil with one or more coil windings, which secondary coil is moved with or starting from the object. The device comprises a measuring device for detecting and/or processing at least one physical variable of the electrical resonance circuit, which variable changes during the movement of the object between the first position and the second position and outputs at least one electrical signal that is dependent on the change in the physical variable.
The invention further relates to an input device with one or more such apparatuses and to a method for operating such an apparatus or such an input apparatus.

2. 发明授权

US10965287B2 Replaceable key structure 有权
公开(公告)号：US10965287B2
公开(公告)日：2021-03-30
申请号：US16226848
申请日：2018-12-20
申请人： DEXIN ELECTRONIC LTD. , DEXIN CORPORATION
发明人： Yi-Shun Chen
IPC分类号： H01H9/00 , H03K17/972 , G06F3/023 , H01H13/803 , H01H13/7073 , H01H13/7057
摘要： A replaceable key structure includes a key holder and a circuit board. The key holder is disposed above a circuit board. The key holder is formed with a mounting slot for selectively receiving a first key module or a second key module therein. A magnetic sensor and a contact connector are disposed on the circuit board positionally corresponding to the mounting slot of the key holder. The first key module has a shaft, and a magnetic element disposed on the bottom of the shaft. The magnetic sensor can output an analog signal when the magnetic element approaches. The second key module has a trigger switch which has two electrical terminals disposed on the bottom surface of the second key module. When the second key module is installed in the mounting slot, the electrical terminals can be electrically connected to the contact connector.

3. 发明申请

US20200371603A1 SELECTIVELY DISPLACED KEYS FOR INPUT AND OUTPUT 审中-公开
公开(公告)号：US20200371603A1
公开(公告)日：2020-11-26
申请号：US16990885
申请日：2020-08-11
申请人： Intel Corporation
发明人： Faizal A. Kotta , Vishal Narayanan Potty
IPC分类号： G06F3/02 , H01H13/7065 , H03K17/972
摘要： In one aspect, an apparatus for receiving input and/or generating output comprises a key assembly. The key assembly comprises a key cover, a magnet, and an electromagnet. The magnet is coupled to the key cover. The electromagnet is operable to displace the key cover based on whether the key assembly is in an active state or an inactive state. In the active state, the electromagnet is operable to raise the key cover to a first position based on generation of a magnetic field. In the inactive state, the electromagnet is operable to lower the key cover to a second position based on cessation of the magnetic field.

4. 发明申请

US20200358438A1 SYSTEM AND METHOD FOR CONTROLLING AN ELECTRO-PERMANENT MAGNET KEY SWITCH ASSEMBLY 审中-公开
公开(公告)号：US20200358438A1
公开(公告)日：2020-11-12
申请号：US16405555
申请日：2019-05-07
申请人： Dell Products, LP
发明人： Mark A. Casparian , Jason S. Morrison
IPC分类号： H03K17/972 , H01H36/00 , H01F7/02 , H01F7/06
摘要： An electro-permanent magnet (EPM) key assembly of an information handling system may comprise a pair of scissor plates operably connected to a base contact assembly including an EPM such that each of the pair of scissor plates may rotate away from one another in the presence of downward force on a key cap situated atop the pair of scissor plates for actuation of the EPM key assembly; the EPM comprising a low-coercivity magnet and a high-coercivity magnet; wherein an application of a first current pulse applied to an electrically conductive wire coiled around the low-coercivity magnet places the EPM in a first on state to assert a first magnetic field on a ferromagnetic flange operatively coupled to rotate with at least one scissor plate about a hinge; and wherein an application of a second current pulse applied to the electrically conductive wire places the EPM in a second on state to increase the magnetic field on the ferromagnetic flange.

5. 发明授权

US10574233B2 Retractable and/or variable depression force key assemblies and methods for using the same 有权
公开(公告)号：US10574233B2
公开(公告)日：2020-02-25
申请号：US15418232
申请日：2017-01-27
申请人： DELL PRODUCTS L.P.
发明人： Mark A. Casparian , Joe A. Olmsted , Philip J. Grossmann , Jason Morrison , Frank C. Azor
IPC分类号： H03K17/972 , H01F7/02 , H01F7/20 , H01H3/12 , H01H13/7065
摘要： Key assemblies are disclosed herein that are retractable and/or that present a variable key assembly depression force to a user. In one example, one or more key assemblies may be provided that each employ one or more electro-permanent magnets (EPMs) together with permanent magnet and/or magnetically permeable (e.g., ferromagnetic) key assembly components to control key retraction and extension, and/or to control peak depression force (e.g., typing force) required to depress and displace a key assembly from an extended position to a lower position that causes the key assembly to produce a digital or analog output signal.

6. 发明授权

US10396786B2 Key input apparatus 有权
公开(公告)号：US10396786B2
公开(公告)日：2019-08-27
申请号：US16160046
申请日：2018-10-15
申请人： TDK Corporation
发明人： Naoki Ohta
IPC分类号： H03K17/972 , H01H13/705 , H01H13/14
摘要： A key input apparatus includes a key top capable of moving up and down through a pressing operation; a first substrate, which includes a first surface, which is positioned on the key top side, and a second surface, which is opposite to the first surface, and the first substrate supports the key top and is provided to be movable up and down along with the key top; a second substrate, which is provided between the key top and the first substrate in the direction of the up-and-down movement of the key top, and the second substrate includes a first surface, which is positioned on the first substrate side, and a second surface, which is opposite to the first surface; a magnetic field generation unit; a magnetic sensor unit, which includes a magnetic detection element that detects a magnetic field generated from the magnetic field generation unit; and an adhesion unit, which includes a soft magnetic material capable of adhering to the magnetic field generation unit. The magnetic sensor unit and the adhesion unit are provided on one of the first surface of the first substrate and the first surface of the second substrate, and the magnetic field generation unit is provided on the other of the first surface of the first substrate and the first surface of the second substrate, opposite to the adhesion unit.

7. 发明授权

US10187058B2 Hall-effect universal control button for a man-machine interface, and man-machine interface equipped with such a control button 有权
公开(公告)号：US10187058B2
公开(公告)日：2019-01-22
申请号：US15167657
申请日：2016-05-27
申请人： ZODIAC AERO ELECTRIC
发明人： Antonio Simao
IPC分类号： H01H9/00 , H03K17/95 , G06F3/02 , H03K17/972 , B64D43/00 , G05G1/02 , G05G1/08 , H01H11/00
摘要： A Hall-effect universal control button for a man-machine interface includes a base adapted for mounting on the interface, and a plurality of manually actuable and interchangeable control modules. Each control module is mountable on the base and includes a bipolar magnet. The base includes at least one sensor to detect a magnetic field of the magnet.

8. 发明申请

US20180297831A1 BEVERAGE DISPENSING METHOD USING SENSOR ASSEMBLY FOR SENSING DISPENSING OF BEVERAGE 审中-公开
公开(公告)号：US20180297831A1
公开(公告)日：2018-10-18
申请号：US16014704
申请日：2018-06-21
申请人： Automatic Bar Controls, Inc.
发明人： Thomas R. Hecht , Richard A. Martindale
IPC分类号： B67D1/00 , H03K17/972
摘要： A beverage dispensing method for dispensing and sensing the dispensing of one or more beverage components from a bar gun. The method of detecting includes using a sensor associated with a button on the bar gun to detect that the button is depressed to mechanically actuate a valve within a body of the bar gun.

9. 发明申请

US20180262194A1 KEY INPUT APPARATUS 审中-公开
公开(公告)号：US20180262194A1
公开(公告)日：2018-09-13
申请号：US15823689
申请日：2017-11-28
申请人： TDK Corporation
发明人： Naoki OHTA
IPC分类号： H03K17/972 , H01H13/14 , H01H13/705
CPC分类号： H03K17/972 , H01H13/14 , H01H13/705
摘要： A key input apparatus includes a key top capable of moving up and down through a pressing operation; a first substrate, which includes a first surface, which is positioned on the key top side, and a second surface, which is opposite to the first surface, and the first substrate supports the key top and is provided to be movable up and down along with the key top; a second substrate, which is provided between the key top and the first substrate in the direction of the up-and-down movement of the key top, and the second substrate includes a first surface, which is positioned on the first substrate side, and a second surface, which is opposite to the first surface; a magnetic field generation unit; a magnetic sensor unit, which includes a magnetic detection element that detects a magnetic field generated from the magnetic field generation unit; and an adhesion unit, which includes a soft magnetic material capable of adhering to the magnetic field generation unit. The magnetic sensor unit and the adhesion unit are provided on one of the first surface of the first substrate and the first surface of the second substrate, and the magnetic field generation unit is provided on the other of the first surface of the first substrate and the first surface of the second substrate, opposite to the adhesion unit.

10. 发明申请

US20150341030A1 KEYBOARD ASSEMBLY INCLUDING AN ELECTROMAGNET 有权
标题翻译：键盘总成包括电磁铁
公开(公告)号：US20150341030A1
公开(公告)日：2015-11-26
申请号：US14759031
申请日：2013-01-04
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Stephen Philip DE SAULLES , Edward Thomas ROSE
IPC分类号： H03K17/972 , G06F3/02
CPC分类号： H03K17/972 , G06F1/1616 , G06F1/1666 , G06F3/0221
摘要： A keyboard assembly includes a plurality of keys, a key actuation mechanism to move at least one of the keys, the key actuation mechanism including an electromagnet, and a controller to selectively control the electromagnet to cause the at least one key to move between a raised position and a retracted position.
摘要翻译：键盘组件包括多个键，用于移动至少一个键的键致动机构，键驱动机构包括电磁体，以及控制器，用于选择性地控制电磁体以使至少一个键在升高的位置和缩回位置。

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