Force sensing architectures

Force sensing architectures

The invention discloses force sensing architectures. An electronic device with a force sensing device is disclosed. The electronic device comprises a user input surface defining an exterior surface of the electronic device, a first capacitive sensing element, and a second capacitive sensing element...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YINDAR CHUO, ROBERT W. RUMFORD, STEVE L. TERRY, SUNGGU KANG, EUGENE C. CHEUNG, PEY-JIUN KO, SE HYUN AHN, STEVEN M. SCARDATO, WOOKYUNG BAE, DHAVAL C. PATEL, CHUN-HAO TUNG, RASMI R. DAS, XIAOQI ZHOU, XIAOFAN NIU, MOOKYUNG SON, CHRISTOPHER L. BOITNOTT, YI GU, NATHAN K. GUPTA, PO-JUIN, JOHN Z. ZHONG, VICTOR H. YIN, WEI LIN
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:The invention discloses force sensing architectures. An electronic device with a force sensing device is disclosed. The electronic device comprises a user input surface defining an exterior surface of the electronic device, a first capacitive sensing element, and a second capacitive sensing element capacitively coupled to the first capacitive sensing element. The electronic device also comprises a first spacing layer between the first and second capacitive sensing elements, and a second spacing layer between the first and second capacitive sensing elements. The first and second spacing layers have different compositions. The electronic device also comprises sensing circuitry coupled to the first and second capacitive sensing elements configured to determine an amount of applied force on the user input surface. The first spacing layer is configured to collapse if the applied force is below a force threshold, and the second spacing layer is configured to collapse if the applied force is above the force threshol