CN201188219Y - Card reading device integrating touch key control and control chip module thereof - Google Patents

Abstract

A card reading device integrated with touch key control is applied to an application system, and comprises: the touch control device comprises a touch control induction interface, at least one memory card interface, an interface connection unit and a control chip module. The touch sensing interface is provided with a plurality of touch keys, and the memory card interfaces are respectively used for connecting a memory card. Furthermore, the interface connection unit is connected with a system connection unit of the application system, the control chip module is connected with the touch sensing interface and the memory card interface, and different device Class specifications are adopted for the touch sensing interface and the memory card interface respectively to achieve connection with the application system for signal transmission. Therefore, the card reading device achieves the purpose of having the functions of controlling the touch key and accessing the memory card.

Description

Card reader device integrated with touch button control and its control chip module

technical field

The utility model relates to a card reading device, in particular to a card reading device integrating the control functions of touch buttons and a control chip module thereof.

Background technique

Due to the rapid development of information technology, computer systems have gradually become one of the indispensable tools for users every day. Regardless of whether it is a desktop computer, a notebook computer or even a personal digital assistant (PDA), the host itself provides some control buttons or function buttons (such as: multimedia playback control), so that users can control the computer more directly. operation.

In addition, in the part of digital data storage in the computer system, because the silicon storage medium (such as: flash memory) has the practicability and flexibility of light, thin and small, and the application of various types of memory cards is also more and more extensive, so that more and more Regardless of whether it is through an external connection or a built-in method, the computer system has integrated devices with card reading functions to provide users with more convenient access to the memory cards they use.

Taking the current notebook computer integrating the above functions as an example, please refer to FIG. 1 , which is a block diagram of a conventional notebook computer architecture. As shown in the figure, the notebook computer 9 includes a plurality of control buttons 91 , a button control chip 92 , a plurality of card connectors 93 , a card reader control chip 94 and a central processing unit 95 . Wherein, the key control chip 92 is respectively connected to the control key 91 through a general-purpose input and output pin (GPIO), and is connected to the central processing unit 95 through a serial bus (I2C) or a universal serial bus (USB), for example. . The button control chip 92 is used to set the definition of each control button 91 , and when any one of the control buttons 91 is triggered, a corresponding signal can be returned to the central processing unit 95 . In addition, the card-reading control chip 94 is connected to different memory cards (not shown) through the card connectors 93 to access data, and the card-reading control chip 94 is connected to the central processing unit through the Universal Serial Bus 95 for data transmission.

However, in terms of the architecture of the currently designed notebook computer 9, since the key control chip 92 and the card reader control chip 94 are independently designed, the central processing unit 95 must simultaneously control the key control chip 92 and the card reader. The card controls the chip 94 to perform respective access actions, so that the execution performance of the central processing unit 95 is reduced. And in the design of the notebook computer 9 must take into account the key control chip 92 and card reader control chip 94 and the design position of the central processing unit 95, and will cause puzzlement on the circuit wiring.

In addition, if the notebook computer 9 is equipped with an independent card reader, that is, the components of the card reader control chip 94 and the card connector 93 in FIG. 1 are independently designed on another circuit board. Then it is bound to be unable to further effectively reduce the size of the computer. Furthermore, if it is for a desktop computer, it is usually designed by integrating an internal card reader device, and the control of the control buttons or function buttons will be independent of the card reader device and redesigned. A circuit board is placed on a computer case panel or the like. In this regard, the design cost of the system manufacturer will be increased.

Therefore, how to make the computer system have more functions without reducing the original execution efficiency, and to have the advantages of convenience and flexibility in application design, as well as the advantages of reducing product size and cost, is currently the A problem worth improving.

Utility model content

In view of this, the problem to be solved by the present invention is to integrate the function of touch button control through the control chip module of a card reader device, so that the card reader device not only has the function of accessing the memory card, but also can It has the function of controlling touch buttons. Therefore, the application system with the card reading device of the present utility model can achieve simple integrated design with card reading function and touch buttons without greatly changing the design of the hardware circuit, or even without changing the circuit design. purpose of the function.

In order to achieve the above purpose, according to a solution proposed by the utility model, a card reader device integrated with touch button control is provided, which is applied to an application system, and the card reader device includes: a touch sensor interface, at least one memory card Interface and a control chip module. Wherein, the touch sensing interface has a plurality of the touch buttons; the memory card interface is respectively connected to a memory card; the control chip module is connected to the touch sensing interface and the memory card interface, and is directed to the touch sensing interface and the memory card interface A different device class (Class) is used respectively to perform signal transmission with the application system.

Wherein, the card reading device further includes an interface connection unit, and the interface connection unit is connected to a system connection unit of the application system.

In order to achieve the above object, according to another solution proposed by the present utility model, a control chip module of a card reading device integrated with touch key control is provided, which is a single chip module, and the card reading device includes a touch sensing interface, At least one memory card interface and an interface connection unit, and the control chip module includes: a sensing unit, a sensing control circuit, a card interface unit, a signal processing unit and a universal serial bus processing unit. Wherein, the sensing unit generates a button sensing signal according to the state of the touch sensing interface; the sensing control circuit controls the sensing unit; the card interface unit is connected to the memory card interface, and is inserted into the memory card interface. The memory card transmits a data signal; and the signal processing unit is connected with the interface connection unit, and performs signal conversion and transmission with an application system. Finally, the USB processing unit controls the card interface unit and the sensing control circuit to receive the data signal and the key sensing signal, and use a different device type to perform signal transmission with the application system.

In order to achieve the above object, according to another solution proposed by the utility model, a control chip module of a card reading device integrated with touch key control is provided, which is a multi-chip module, and the card reading device includes a touch sensing interface, At least one memory card interface and an interface connection unit, and the control chip module includes: a button control chip and a card reading control chip. Wherein, the key control chip is connected to the touch sensing interface, and generates a key sensing signal according to the state of the touch sensing interface. The card reading control chip is connected with the button control chip, and further includes: a card interface unit, a signal processing unit and a universal serial bus processing unit. Wherein, the card interface unit is connected to the memory card interface, and transmits a data signal with the memory card plugged into the memory card interface; the signal processing unit is connected to the interface connection unit to perform signal conversion and transmission with an application system; and The universal serial bus processing unit controls the card interface unit and the button control chip to receive the data signal and the button sensing signal, and uses a mass storage device class (Mass Storage Device Class) to exchange data with the application system The transmission of the signal, and the device category (HID Class) of a human-machine interface device is used to transmit the key sensing signal with the application system.

In this way, the card reader device integrated with the touch button control of the present invention enables the application system to not only have the function of accessing the memory card, but also directly support the control of the touch button after being equipped with the card reader device.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the attached drawings are only for reference and illustration, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is the architectural block diagram of conventional notebook computer;

Fig. 2 is a block diagram of an embodiment of a card reading device integrated with touch button control of the present invention;

Fig. 3 is a block diagram of the first embodiment of the control chip module of the card reading device integrated with touch button control of the utility model; and

FIG. 4 is a block diagram of a second embodiment of the control chip module of the card reader device integrated with touch key control according to the present invention.

Explanation of main component symbols

1. Known technology

Notebook 9

Control button 91

Button control chip 92

Card Connector 93

Card reader control chip 94

CPU 95

Two, the utility model

Card Reader 1

Touch Sensitive Interface 11

Memory card interface 12

Interface connection unit 13

Control chip module 14, 15

sensing unit 141

Sensing control circuit 142

Voltage indicating circuit 143

decoding circuit 144

Card interface unit 145, 155

Signal processing unit 146, 156

memory unit 147, 157

Universal Serial Bus processing units 148, 158

Card reader control chip 150

Button control chip 151

Application System 2

System connection unit 21

Detailed ways

The utility model integrates the card reading device controlled by the touch button through a control chip module of the card reader to integrate the function of the touch button control. In addition to improving the hardware design of the card reader, the control chip The module can support the composite device class (Class) of the Universal Serial Bus (USB) specification, so that when receiving the signal of the touch button and accessing the memory card, different device classes are used to communicate with the applied application system Communication connection. So that the card reading device not only has the function of accessing the memory card, but also has the function of controlling the touch buttons.

Please refer to FIG. 2 , which is a block diagram of an embodiment of the card reading device integrated with touch button control of the present invention. As shown in the figure, this embodiment provides a card reading device 1, which is applied to an application system 2 (such as: notebook computer, printer, personal digital assistant, etc.). In order to clearly distinguish the respective hardware circuits of the card reading device 1 and the application system 2 , the connections are described in the form of external connection in FIG. 2 . However, in actual design, the card reading device 1 can also be built directly or connected to the application system 2 as a whole.

The card reading device 1 includes: a touch sensing interface 11 , at least one memory card interface 12 , an interface connection unit 13 and a control chip module 14 . Wherein, the touch sensing interface 11 has a plurality of touch buttons for the user to press, and each touch button can be defined as a control of a different function of the application system 2, which is not limited here. In addition, the design of the touch sensing interface 11 can be, for example, the design of a capacitive touch interface widely used at present.

The memory card interface 12 is used to connect a memory card (not shown), and the memory card interface 12 can be, for example, a slot that supports a single memory card, or a slot that supports multiple memory cards (all-in-one slot) ). The interface connection unit 13 provides an internal or external connection to a system connection unit 21 in the application system 2 , so that the card reading device 1 can be connected with the application system 2 and transmit signals.

And the control chip module 14 is the design of single-chip module or multi-chip module in design, and can for example be the design of the chip module of universal serial bus or high-speed peripheral component connection bus (PCI-Express), in order to connect touch sensing interface 11 and memory card interface 12. Moreover, for the touch sensing interface 11 and the memory card interface 12 , the control chip module 14 adopts different specifications of a device category to connect with the application system 2 for signal transmission. Wherein, for the touch sensing interface 11, the control chip module 14 adopts a device category (HID Class) of a human-machine interface device in the specification of the universal serial bus to connect with the application system 2 and perform signal transmission; and for the memory card interface 12 The control chip module 14 uses a Mass Storage Device Class in the Universal Serial Bus specification to connect with the application system 2 and perform signal transmission.

In other words, when the user presses the touch sensing interface 11, the control chip module 14 will transmit the key signal to the application system 2 according to the transmission standard of the device type of the human-machine interface device after receiving the key signal, That is, for the application system 2, the card reading device 1 at this time is identified as a human-machine interface device. Similarly, if the user intends to access the data in the memory card, and when the access of the data signal is operated on the application system 2, the control chip module 14 will transmit the data with the transmission specification of the device category of the mass storage device signal, for the application system 2, the card reading device 1 at this time is recognized as a mass storage device.

Incidentally, when the control chip module 14 adopts the specification design for connecting the bus with high-speed peripheral parts, it will further adopt the transmission protocol of the universal serial bus supported by it to operate, so as to meet the operation requirements of the present invention. .

Please refer to FIG. 3 again, which is a block diagram of a first embodiment of the control chip module of the card reader device integrated with touch key control according to the present invention. As shown in the figure, this embodiment further discloses the detailed architecture of the control chip module 14 of the card reading device 1, and the control chip module 14 of this embodiment is designed as a single-chip module, that is to say, the control chip module 14 in this embodiment The control chip module 14 is actually a single chip. The control chip module 14 provided in this embodiment includes: a sensing unit 141, a sensing control circuit 142, a voltage indicating circuit 143, a decoding circuit 144, a card interface unit 145, a signal processing unit 146, A memory unit 147 and a USB processing unit 148 .

Wherein, the USB processing unit 148 is used to control the operation of the sensing control circuit 142 so that the sensing control circuit 142 can further control the operation of the sensing unit 141 . The voltage indication circuit 143 is used for externally connecting the touch sensing interface 11 to provide the state of the touch sensing interface 11 to the sensing unit 141 . Furthermore, the sensing unit 141 is connected to the voltage indicating circuit 143 for generating a key sensing signal according to the state of the touch sensing interface 11 . Among them, the design of the voltage indication circuit 143 can be, for example, the design of an on-off switch, that is, when the user presses one of the touch keys in the touch-sensitive interface 11, the corresponding one can be turned on. Turning on and off the switch enables the sensing unit 141 to receive the trigger signal of the touch key to further generate a key sensing signal.

In addition, the actual design of the voltage indication circuit 143 and the sensing unit 141 can be, for example, an analog circuit design, so it needs to be further connected to the sensing unit 141 through the design of the decoding circuit 144, so as to receive the key sensing signal and It is decoded, and the key sensing signal is converted from an analog signal to a digital signal, and then output to the USB processing unit 148, so that the USB processing unit 148 can identify which touch button is actually for. The control key is pressed by the user and reported to the application system 2 .

Next, the card interface unit 145 in the control chip module 14 is used to externally connect the memory card interface 12, and receive the control of the USB processing unit 148 to connect with the memory card inserted into the memory card interface 12 (not shown). Carry out data signal transmission.

The signal processing unit 146 is an external connection interface connection unit 13 for converting and transmitting signals with the application system 2 . Wherein, the signal processing unit 146 may, for example, include a serial interface engine (SIE) (not shown) and a transceiver (UTMI and PHY) (not shown), so as to encode and decode the sequence of signals coding, error correction, bit stuffing, and conversion transceiving processes. Therefore, the key sensing signal and data signal received by the USB processing unit 148 will be transmitted to the application system 2 through the signal processing unit 146 . Of course, any command signal issued by the application system 2 to the control chip module 14 of the card reading device 1 will also be transmitted to the USB processing unit 148 through the signal processing unit 146 .

The memory unit 147 is connected between the card interface unit 145 and the signal processing unit 146 and receives the control of the USB processing unit 148 for providing data and temporarily storing data. In actual design, the memory unit 147 may include, for example, a software program area (not shown) and a data temporary storage area (not shown). Wherein the software program area adopts the design of read-only memory (ROM) to store a parallel software program when the universal serial bus processing unit 148 operates; and the data temporary storage area adopts the design of random access memory (RAM) for Data signals transmitted between the application system 2 and the card reading device 1 are temporarily stored.

The main point of this embodiment is that, after receiving the button sensing signal and the data signal, the USB processing unit 148 will use different device types to transmit the signals, so as to communicate with the application system. 2 to make a connection. Among them, for the part of the button sensing signal, the USB processing unit 148 transmits with the device category of the human-machine interface device; and for the part of the data signal, the USB processing unit 148 transmits it with the device category of a mass storage media device. to transmit. Therefore, regardless of whether the user is using the touch button interface 11 or the memory card interface 12 , the application system 2 can correctly identify the current device type of the card reading device 1 and perform signal transmission smoothly.

In addition, please refer to FIG. 4 , which is a block diagram of a second embodiment of the control chip module of the card reader device integrated with touch key control according to the present invention. The function and operating principle of this embodiment are roughly the same as those of the first embodiment, the biggest difference is that the control chip module of this embodiment adopts the design of a multi-chip module. As shown in FIG. 4 , the control chip module 15 includes: a card reading control chip 150 and a button control chip 151 .

Wherein, the card reading control chip 150 simply includes a card interface unit 155 , a signal processing unit 156 , a memory unit 157 and a USB processing unit 158 . The operations of these units are the same as those described in the first embodiment, and will not be repeated here. In addition, the key control chip 151 is another independent control chip for sensing the state of the touch-sensing interface 11 to generate a key sensing signal.

Furthermore, in actual design, the button control chip 151 is further connected to the card reader control chip 150 through a serial bus (I2C), so that the button control chip 151 first transmits the generated button sensing signal to the card reader. The USB processing unit 158 in the control chip 150 is controlled by the USB processing unit 158 to transmit to the application system 2 in the device category of the human-machine interface device. In this way. The card reading device 1 equipped with the control chip module 15 of this embodiment also transmits data signals and button sensing signals with the application system 2 through the same interface connection unit 13 .

To sum up, the utility model integrates the function of touch button control through the control chip module of a card reader device, so that the card reader device not only has the function of accessing the memory card, but also has the function of controlling the touch button function. Therefore, the application system with the card reading device of the present utility model does not need to greatly change the design of the hardware circuit, and the application system of the external card reading device does not even need to change the circuit design, and can achieve simple integration. It is designed with the purpose of card reading function and touch button function, and then has the advantages of reducing product size and cost. In addition, the card reading device integrated with touch button control of the present invention can be more conveniently and flexibly applied to various application systems.

However, the above are only detailed descriptions and drawings of specific embodiments of the present utility model, and are not intended to limit the utility model. All scopes of the utility model should be subject to the scope of the following patent application. Within the scope of the utility model, any changes or modifications that can be easily conceived by the skilled person can be included in the patent scope defined by the utility model.

Claims (9)

1, a kind of reader device of integrating touch controlled key control is applied to an application system, it is characterized in that described reader device comprises:

One touch-control sensing interface has a plurality of these touch controlled keys;

At least one memory card interface connects a memory card respectively; And

One control chip module connects this touch-control sensing interface and this memory card interface, and comes to carry out the signal transmission with this application system with a different device classification respectively at this touch-control sensing interface and this memory card interface.

2, the reader device of integration touch controlled key control as claimed in claim 1, it is characterized in that: described reader device further comprises an interface linkage unit, connects or fetch the system's linkage unit that connects this application system in it sees through outward.

3, the reader device of integration touch controlled key control as claimed in claim 1, it is characterized in that: described control chip module is the chip module of universal serial bus or high-speed peripheral part connecting bus.

4, the reader device of integration touch controlled key control as claimed in claim 3, it is characterized in that: described control chip module is to carry out the signal transmission with this application system with the device classification of a human-computer interface device at this touch-control sensing interface, and this control chip module is to carry out the signal transmission with this application system with the device classification of a mass storage at this memory card interface.

5, a kind of control chip module of integrating the reader device of touch controlled key control it is characterized in that be single chip module, this reader device comprises a touch-control sensing interface, at least one memory card interface and an interface linkage unit, and this control chip module comprises:

One sensing cell produces a button sensing signal according to the state at this touch-control sensing interface;

One sensing control circuit is controlled this sensing cell;

One card interface unit connects this memory card interface, and transmits a data-signal with memory card that this memory card interface is pegged graft;

One signal processing unit connects this interface linkage unit, and carries out the conversion and the transmission of signal with an application system; And

One universal serial bus processing unit is controlled this card interface unit and this sensing control circuit, receiving this data-signal and this button sensing signal, and comes to carry out the signal transmission with this application system with a different device classification respectively.

6, the control chip module of the reader device of integration touch controlled key control as claimed in claim 5, it is characterized in that: described universal serial bus processing unit is to transmit this button sensing signal with this application system with the device classification of a human-computer interface device, and this universal serial bus processing unit is to transmit this data-signal with this application system with the device classification of a mass storage.

7, the control chip module of the reader device of integration touch controlled key control as claimed in claim 5 is characterized in that: further comprise:

One voltage indicating circuit connects this touch-control sensing interface, and the state that this touch-control sensing interface is provided is to this sensing cell; And

One decoding scheme connects this sensing cell, and further this button sensing signal is deciphered, being digital signal with this button sensing signal self simulation conversion of signals.

8, a kind of control chip module of integrating the reader device of touch controlled key control it is characterized in that be multi-chip module, this reader device comprises a touch-control sensing interface, at least one memory card interface and an interface linkage unit, and this control chip module comprises:

One button control chip connects this touch-control sensing interface, and according to the state at this touch-control sensing interface, produces a button sensing signal; And

One Card Reader control chip connects this button control chip, and further comprises:

One card interface unit connects this memory card interface, and transmits a data-signal with memory card that this memory card interface is pegged graft;

One signal processing unit connects this interface linkage unit, to carry out the conversion and the transmission of signal with an application system; And

One universal serial bus processing unit, control this card interface unit and this button control chip, to receive this data-signal and this button sensing signal, and come and this application system transmission of data signals with the device classification of a mass storage, and come and this application system transmission button sensing signal with the device classification of a human-computer interface device.

9, the control chip module of the reader device of integration touch controlled key control as claimed in claim 8 is characterized in that: described button control chip is to see through a universal serial bus to connect this Card Reader control chip.

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