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Frequency playing device capable of inserting card and inserting card identification method

A technology of audio playback and plug-in card, which is applied to electrical components, transmission systems, stereo systems, etc.

Inactive Publication Date: 2012-10-10
A MAX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the miniaturization and diversification of existing digital products, the FM radio function fixed in the audio playback equipment as an integral part no longer meets the requirements

Method used

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  • Frequency playing device capable of inserting card and inserting card identification method
  • Frequency playing device capable of inserting card and inserting card identification method
  • Frequency playing device capable of inserting card and inserting card identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with embodiment the present invention is further described.

[0020] Such as figure 1 , Figure 5 As shown, an audio playback device provided with a card holder includes a power amplifier, a control module and a general input / output interface, and the power amplifier and the general input / output interface are connected to the control module; an SD / MMC card holder is also provided , the SD / MMC card holder is provided with an SD / MMC card connector; at least one switch connected to the control module is set, and one or more pins of the SD / MMC card connector are controlled by the switch and the power amplifier and the general input / The connection of one or more pins of the output interface. The present invention sets a card socket on the basis of existing digital audio file playing devices (such as mp3, mp4 players, etc.); one end of the SD / MMC card socket communicates with the outside. When the deck is inserted into the FM card, it can receive and...

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PUM

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Abstract

This invention relates to an audio play device with a card base, a FM card receiving device and an identification method for plug cards, in which, the audio play device includes related elements of an audio player, a control module and a SD / MMC base, the FM card includes a CB installed with received chips on it and connecting pins of SD / MMC card are set, and the identification method includes: a switch is set on the base and is touched when a card is plugged and a signal is generated and sent to a control module, which instructs providing supply to the card and sends test information to the card and receives reply of the card to identify its kind then to start up a working module corresponding to the card. This invention installs a FM reception part in a SD card structure and allows that SD base in MP3 is compatible with SD, MMC and FM reception card.

Description

technical field [0001] The invention relates to an audio playing device and an FM receiving device provided with a card socket, in particular to a digital audio file playing device with an SD card socket and an identification method for an inserted card. Background technique [0002] FM radio is a very mature technology that has been widely used all over the world during the first half century. It can reliably convey information to a large audience at a relatively low price point with acceptable sound quality. So FM radio is integrated into almost all forms of consumer electronics. So far, all FM radio functions are fixedly installed in the device in the form of independent functional modules. In other words, when an FM radio function is added to a consumer electronic product, the entire FM radio function circuit is fixedly installed in the consumer electronic product and becomes an inseparable part of the whole. However, along with the miniaturization and diversificatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/20H04S7/00
Inventor 陈学尧
Owner A MAX TECH