IP Library › Granted Patent US 12711801
Granted Patent B2
US 12711801 · App. 17/993,894 · Granted Aug 18, 2026

Signal integration system and capacitive touch control device

Inventor: Ching-Shun Chen (Hsin-Chu City, TW)
Assignee: PixArt Imaging Inc.
G06V40/1318G06F3/042G06F3/0443G06V40/15B60R16/023G06F2203/04106G06F2203/04108
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Quick Facts
Patent No.
US 12711801
App. No.
17/993,894
Granted
Aug 18, 2026
Kind
B2
Abstract

A signal integration system, comprising: an optical finger navigation (OFN) device, configured to sense images of a finger to generate OFN sensing data; and a capacitive touch control circuit, configured to receive the OFN sensing data, configured to generate first control signals for a capacitive touch sensor, and configured to receive touch sensing data from the capacitive touch sensor; wherein the capacitive touch control circuit integrates the OFN sensing data and a touch sensing result corresponding to the touch sensing data to output integrated data.

Claims (25)

1 . A signal integration system, comprising:

an optical finger navigation (OFN) device, configured to sense images of a finger to generate OFN sensing data; and

a capacitive touch control circuit, configured to receive the OFN sensing data, configured to generate first control signals for a capacitive touch sensor, and configured to receive touch sensing data from the capacitive touch sensor;

wherein the capacitive touch control circuit integrates the OFN sensing data and a touch sensing result corresponding to the touch sensing data to output integrated data;

wherein the OFN device is a fingerprint sensing device and is configured to encrypt the fingerprint to generate an encrypted fingerprint;

wherein the capacitive touch control circuit is connected to an auxiliary control circuit which decrypts the encrypted fingerprint;

wherein the signal integration system is in a conveyance, wherein the auxiliary control circuit is connected to other electronic devices of the conveyance via a second communication interface.

2 . The signal integration system of claim 1 , wherein the capacitive touch control circuit is further connected to a mechanical switch to receive a second control signal from the mechanical switch, wherein the mechanical switch is used to control a target device to turn on and turn off.

3 . The signal integration system of claim 2 , wherein the target device is an overhead console or a center console of the conveyance.

4 . The signal integration system of claim 1 , wherein the capacitive touch control circuit is connected to the conveyance via a first communication interface.

5 . The signal integration system of claim 1 , wherein the signal integration system is provided in a steering wheel of the conveyance.

6 . The signal integration system of claim 5 , wherein the steering wheel comprises a hand off detection device, wherein the capacitive touch sensor is used for a hand off detection device.

7 . A capacitive touch control device, comprising:

a capacitive touch sensor;

an optical finger navigation (OFN) device, configure to sense images of a finger to generate OFN sensing data; and

a control circuit, configured to receive the OFN sensing data, configured to generate first control signals for the capacitive touch sensor, and configured to receive touch sensing data from the capacitive touch sensor;

wherein the control circuit integrates the OFN sensing data and a touch sensing result corresponding to the touch sensing data to output integrated data;

wherein the control circuit is further connected to a mechanical switch to receive a second control signal from the mechanical switch, wherein the mechanical switch is used to control a target device to turn on and turn off;

wherein the OFN device is a fingerprint sensing device configured to encrypt the fingerprint to generate an encrypted fingerprint;

wherein the control circuit is connected to an auxiliary control circuit which decrypts the encrypted fingerprint.

8 . The capacitive touch control device of claim 7 , wherein the capacitive touch control device is in a conveyance, and the target device is an overhead console or a center console of the conveyance.

9 . The capacitive touch control device of claim 7 , wherein the capacitive touch control device is in a conveyance, wherein the control circuit is connected to other electronic devices of the conveyance via a first communication interface.

10 . The capacitive touch control device of claim 7 , wherein the capacitive touch control device is in a conveyance, wherein the auxiliary control circuit is connected to other electronic devices of the conveyance via a second communication interface.

11 . The capacitive touch control device of claim 7 , wherein the capacitive touch control device is provided in a steering wheel of a conveyance.

12 . The capacitive touch control device of claim 11 , wherein the steering wheel comprises a hand off detection device, wherein the capacitive touch sensor is used for a hand off detection device.