Front-end circuit performing analog-to-digital conversion and touch processing circuit including the same
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United States of America Patent
Stats
-
Oct 3, 2023
Grant Date -
N/A
app pub date -
Mar 16, 2022
filing date -
May 21, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
First Claim
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International Classification(s)
- 2022 Application Filing Year
- H03M Class
- 1388 Applications Filed
- 948 Patents Issued To-Date
- 68.30 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H03M Class
- 0 % this patent is cited more than
- 2 Age
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