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Insertion detection circuit of flash memory card, insertion detection method, and electronic equipment

A detection circuit and detection method technology, applied in the electronic field, can solve problems such as limited storage capacity and increased resource consumption in mobile terminals, and achieve the effect of saving resources and improving detection efficiency

Active Publication Date: 2021-10-26
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, due to the limited storage capacity of mobile terminals, TF cards are often used to expand the memory. At this time, only the central processing unit can identify the TF card, and the central processing unit needs to add a pin dedicated to the TF card. identification, which increases the consumption of resources in the mobile terminal

Method used

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  • Insertion detection circuit of flash memory card, insertion detection method, and electronic equipment
  • Insertion detection circuit of flash memory card, insertion detection method, and electronic equipment
  • Insertion detection circuit of flash memory card, insertion detection method, and electronic equipment

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application. In the description of the present application, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically def...

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Abstract

Embodiments of the present application provide an insertion detection circuit, an insertion detection method, and electronic equipment for a flash memory card. The insertion detection circuit includes: a first power supply unit, a second power supply unit, a switch control unit, and an insertion detection unit. The insertion detection unit is respectively connected to the second power supply unit and the switch control unit, and the switch control unit is connected to the first power supply unit. The insertion detection unit is used to receive the first electrical signal output by the first power supply unit through the switch control unit, receive the second electrical signal output by the second power supply unit, and detect the insertion operation of the flash memory card; the switch control unit is used to receive the insertion When the third electrical signal sent by the detection unit is inserted into the flash memory card, the output of the first electrical signal is stopped. This solution can detect the insertion operation of the flash memory card through the voltage change, which improves the detection efficiency; in addition, on the basis of not affecting the normal flash memory card identification function, an additional pin for flash card identification is reduced, which saves electronic equipment resources.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to an insertion detection circuit of a flash memory card, an insertion detection method and electronic equipment. Background technique [0002] TF (Trans FLash) card is a kind of flash memory card, which is widely used in mobile devices. Some mobile terminals (such as flat panels) are provided with dual TF card slots, and the mobile terminal will support the insertion and removal of dual TF cards. TF card is a new generation memory device based on semiconductor flash memory, which is widely used in portable devices, such as digital cameras, PDA (Personal Digital Assistant, personal digital assistant) and multimedia players, etc. [0003] TF card is a multi-functional memory card with many features such as large capacity, high performance, and security, and its read and write speed can reach 2M / s. In the prior art, due to the limited storage capacity of mobile termina...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40G06F1/26
CPCG06F1/266G06F13/4022
Inventor 俞斌
Owner HUIZHOU TCL MOBILE COMM CO LTD