CN-119225556-B - Touch detection equipment, method, device and system

Abstract

The embodiment of the disclosure provides a touch detection method, device and system, and relates to the technical field of touch detection. The method is applied to touch detection equipment, the touch detection equipment comprises a plurality of transducer modules, the transducer modules comprise a plurality of transducers, lower electrodes of the transducers are arranged in a row, the transducers form a transducer array, the method comprises the steps of receiving an operation mode instruction, the operation mode instruction comprises a target proportion and a target frequency, starting the transducers in the transducer array according to the target proportion, transmitting ultrasonic signals, and detecting echo signals according to the target frequency. According to the embodiment, pressing detection and user action detection of any material and any position can be realized, flexible response modes are provided for the electronic equipment, the user experience is improved, the energy consumption of the electronic equipment is reduced, the detection precision is improved, and the stability of user service is guaranteed.

Inventors

• DU CANHONG

Assignees

• 深圳市汇顶科技股份有限公司

Dates

Publication Date

20260508

Application Date

20240902

Claims (20)

1. 1. The touch detection method is characterized by being applied to touch detection equipment, the touch detection equipment comprises a transducer module, the transducer module comprises a plurality of transducers, lower electrodes of the plurality of transducers are arranged in a row, so that the plurality of transducers form a transducer array, and the method comprises the following steps: receiving an operation mode instruction, wherein the operation mode instruction comprises a pressing mode instruction, a sliding mode instruction, a corresponding target proportion and a corresponding target frequency, the target proportion represents the starting number of transducers of the touch detection equipment, and the target frequency represents the times of detecting echo signals in unit time of the touch detection equipment; starting transducers in the transducer array according to the target proportion, and transmitting ultrasonic signals; detecting echo signals according to the target frequency; The target proportion of the sliding mode instruction is larger than that of the pressing mode instruction, and the target frequency of the sliding mode instruction is higher than that of the pressing mode instruction.
2. 2. The touch detection method of claim 1, further comprising: Determining an echo amplitude variation value of an echo signal of the started transducer under the condition that the operation mode instruction is a pressing mode instruction; judging whether the echo amplitude variation value of the echo signal is larger than or equal to a preset variation value threshold value; And under the condition that the echo amplitude variation value is larger than or equal to the variation value threshold, determining that the echo amplitude variation value of the started transducer is a pressing signal, and sending the pressing signal to a system chip.
3. 3. The touch detection method of claim 2, further comprising: Under the condition that the operation mode instruction is a sliding mode instruction, determining echo amplitude variation values of echo signals of the transducers to obtain sliding signals; and sending the sliding signal to the system chip.
4. 4. A touch detection method, wherein the method is applied to a system chip, the method comprising: Issuing a pressing mode instruction and corresponding target proportion and target frequency to enable the touch detection equipment to work in a pressing detection mode; Under the condition that a pressing signal sent by the touch detection equipment in the pressing detection mode is received, a sliding mode instruction, corresponding target proportion and target frequency are issued, so that the touch detection equipment works in the sliding detection mode; receiving a sliding signal sent by the touch detection equipment in the sliding detection mode; determining a user action according to the sliding signal; The target proportion represents the starting number of transducers of the touch detection equipment, and the target frequency represents the times of detecting echo signals in unit time of the touch detection equipment; The target proportion of the sliding mode instruction is larger than that of the pressing mode instruction, and the target frequency of the sliding mode instruction is higher than that of the pressing mode instruction.
5. 5. The touch detection method according to claim 4, wherein determining a user action according to the sliding signal comprises: Receiving a plurality of sliding signals; determining the sliding direction of the user action according to transducer identifications of transducers corresponding to the sliding signals; and determining the sliding speed of the user action according to the distance differences and the time differences of the transducer identifications of the transducers corresponding to the sliding signals.
6. 6. The touch detection method according to claim 5, wherein determining the sliding speed of the user action according to the distance differences and the time differences of the transducer identifications of the transducers corresponding to the plurality of sliding signals comprises: Determining reference identifiers in transducer identifiers of transducers corresponding to the sliding signals; calculating distance differences corresponding to the sliding signals according to the center distance of the transducer and the identification differences of the reference identifications; the sliding speed is determined according to the ratio of the distance difference and the time difference of the plurality of sliding signals.
7. 7. The touch detection method is characterized by being applied to touch detection equipment, the touch detection equipment comprises a transducer module, the transducer module comprises a plurality of transducers, lower electrodes of the plurality of transducers are arranged in a multi-column array, and the plurality of transducers form a transducer array, and the method comprises the following steps: The method comprises the steps of receiving an operation mode instruction, wherein the operation mode instruction comprises a pressing mode instruction, a sliding mode instruction, a fingerprint mode instruction, a corresponding target proportion and a target frequency, the target proportion represents the starting number of transducers of the touch detection equipment, and the target frequency represents the times of detecting echo signals in unit time of the touch detection equipment; starting transducers in the transducer array according to the target proportion, and transmitting ultrasonic signals; And detecting echo signals according to the target frequency.
8. 8. The touch detection method of claim 7, further comprising: determining an echo amplitude variation value of an echo signal of a transducer started in the transducer array under the condition that the operation mode instruction is a pressing mode instruction; judging whether the echo amplitude variation value of the echo signal is larger than or equal to a preset variation value threshold value; And under the condition that the echo amplitude variation value is greater than or equal to the variation value threshold, determining that the echo amplitude variation value of the transducer started in the transducer array is a pressing signal, and sending the pressing signal to a system chip.
9. 9. The touch detection method of claim 7, further comprising: Under the condition that the operation mode instruction is a sliding mode instruction, determining an echo amplitude variation value of an echo signal of a transducer started in the transducer array to obtain a sliding signal; And sending the sliding signal to a system chip.
10. 10. The touch detection method of claim 7, further comprising: Under the condition that the operation mode instruction is a fingerprint mode instruction, determining echo amplitude variation values of echo signals of all transducers in the transducer array to obtain fingerprint signals, wherein the target proportion of the fingerprint mode instruction is larger than that of the pressing mode instruction, and the target frequency is higher than that of the pressing mode instruction; And sending the fingerprint signal to a system chip.
11. 11. A touch detection method, wherein the method is applied to a system chip, the method comprising: Issuing a pressing mode instruction and corresponding target proportion and target frequency to enable the touch detection equipment to work in a pressing detection mode; under the condition that a pressing signal sent by the touch control detection equipment in the pressing detection mode is received, determining a request type of a user request according to the pressing signal; Responding to different request types, and issuing a sliding mode instruction or a fingerprint mode instruction and corresponding target proportion and target frequency so that the touch detection equipment works in a sliding detection mode or a fingerprint detection mode; Receiving a sliding signal or a fingerprint signal sent by the touch detection device in the sliding detection mode or the fingerprint detection mode; Determining a user action according to the sliding signal or generating a user fingerprint according to the fingerprint signal; The target proportion represents the starting number of the transducers of the touch detection device, the target frequency represents the times of detecting echo signals in unit time of the touch detection device, the target proportion of the sliding mode instruction is larger than the target proportion of the pressing mode instruction, and the target frequency of the sliding mode instruction is higher than the target frequency of the pressing mode instruction.
12. 12. The touch detection method of claim 11, wherein the determining a user action from the sliding signal comprises: Receiving a plurality of sliding signals; determining the sliding direction of the user action according to transducer identifications of transducers corresponding to the sliding signals; and determining the sliding speed of the user action according to the distance differences and the time differences of the transducer identifications of the transducers corresponding to the sliding signals.
13. 13. The touch detection method according to claim 11, wherein determining the sliding speed of the user action according to the distance differences and the time differences of the transducer identifications of the transducers corresponding to the plurality of sliding signals comprises: Determining reference identifiers in transducer identifiers of transducers corresponding to the sliding signals; calculating distance differences corresponding to the sliding signals according to the center distance of the transducer and the identification differences of the reference identifications; the sliding speed is determined according to the ratio of the distance difference and the time difference of the plurality of sliding signals.
14. 14. A touch detection device (1000/1000'), characterized by comprising: A support plate (100) and a transducer module (200/200 '), the transducer module (200/200 ') comprising a plurality of transducers, the lower electrodes (211) of the plurality of transducers being arranged in a column such that the plurality of transducers form a transducer column, or the lower electrodes (211 ') of the plurality of transducers being arranged in a multi-column array such that the plurality of transducers form a transducer array; -the transducer module (200/200') for transmitting an ultrasonic signal and receiving a echo signal; -the support plate (100) for generating a touch signal based on the echo signal; the touch detection device (1000/1000') is adapted to perform the touch detection method according to any of claims 1-3, 7-10.
15. 15. The touch detection device (1000/1000') of claim 14, wherein the echo signals include an echo amplitude for each of the transducers, the generating a touch signal based on the echo signals comprises: The supporting plate (100) is used for extracting an echo amplitude variation value based on the difference value of the echo amplitude of the touched and the echo amplitude without the touch, and obtaining the touch signal.
16. 16. The touch detection device (1000/1000 ') of claim 14, wherein a length L of the lower electrodes (211) of the plurality of transducers arranged in a row or a length L ' of the lower electrodes (211 ') of the plurality of transducers arranged in a row is between 8mm and 40 mm.
17. 17. The touch detection device (1000/1000 ') of claim 14, wherein the center-to-center distance d of the lower electrodes (211/211') of two adjacent transducers is the same.
18. 18. The touch detection device (1000/1000') of claim 17, wherein the center-to-center distance d is between 0.1mm and 4 mm.
19. 19. The touch detection device (1000/1000 ') of claim 14, wherein a size of a lower electrode (211') of the transducer array is smaller than a size of a lower electrode (211) of the transducer array.
20. 20. The touch detection device (1000 ') of claim 15, wherein a size of the lower electrode (211') of the transducer array is 40um-100um.

Description

Touch detection equipment, method, device and system Technical Field The disclosure relates to the technical field of touch detection, and in particular relates to a touch detection device, a touch detection method, a touch detection device and a touch detection system. Background The conventional touch technology is generally realized based on a capacitive sensing technology, which adopts a capacitive touch screen and works by utilizing current induction of a human body. The capacitive touch screen is a composite glass screen, and the touch coordinates of the finger are judged by using the induction current when the finger touches the glass screen, so that a user request is responded. However, the existing touch technology has the disadvantages of single applicable material, only being capable of responding to touch requests of a glass screen, being not applicable to conductive materials such as metal or insulating materials such as plastic, and correspondingly, the response mode of the electronic equipment applying the touch technology is also single, only being capable of responding to compound glass screen interaction, but not responding to requests triggered by conductive materials such as metal or insulating materials such as plastic, so that the existing electronic equipment has poor flexibility and single user experience, and meanwhile, as the comprehensive screen is popularized, the power consumption of the existing touch technology is larger and larger, and once the screen is extremely easy to damage such as collision and fading, the electronic equipment has serious energy consumption, and can not provide services for users in a short time, thereby bringing inconvenience to the users and even being capable of influencing the safety of the users in emergency. Disclosure of Invention In view of the above, embodiments of the present disclosure provide a touch detection device, method, apparatus, and system, which can solve the problems of single applicable material and response mode, poor flexibility of electronic devices, single user experience, serious energy consumption of the electronic devices, and incapability of guaranteeing user services in the existing touch technology. To achieve the above object, according to an aspect of the present disclosure, there is provided a touch detection method applied to a touch detection apparatus including a transducer module including a plurality of transducers, lower electrodes of the plurality of transducers being arranged in a column such that the plurality of transducers form a transducer column, the method including: receiving an operation mode instruction, wherein the operation mode instruction comprises a target proportion and a target frequency; starting transducers in the transducer array according to the target proportion, and transmitting ultrasonic signals; And detecting echo signals according to the target frequency. According to another aspect of the present disclosure, there is provided a touch detection method, the method being applied to a system chip, the method including: Issuing a pressing mode instruction to enable the touch detection device to work in a pressing detection mode; Under the condition that a pressing signal sent by the touch detection equipment in the pressing detection mode is received, a sliding mode instruction is issued, so that the touch detection equipment works in the sliding detection mode; receiving a sliding signal sent by the touch detection equipment in the sliding detection mode; and determining the user action according to the sliding signal. According to still another aspect of the present disclosure, there is provided a touch detection method, which is applied to a touch detection apparatus, the touch detection apparatus including a transducer module including a plurality of transducers, lower electrodes of the plurality of transducers being arranged in a multi-column array such that the plurality of transducers form a transducer array, the method including: receiving an operation mode instruction, wherein the operation mode instruction comprises a target proportion and a target frequency; starting transducers in the transducer array according to the target proportion, and transmitting ultrasonic signals; And detecting echo signals according to the target frequency. According to still another aspect of the embodiments of the present disclosure, there is provided a touch detection method, which is applied to a system chip, the method including: Issuing a pressing mode instruction to enable the touch detection device to work in a pressing detection mode; under the condition that a pressing signal sent by the touch control detection equipment in the pressing detection mode is received, determining a request type of a user request according to the pressing signal; Responding to different request types, and issuing a sliding mode instruction or a fingerprint mode instruction so that the touch detection equipment w