CN100371919C - Improved card reader and data transmission method thereof - Google Patents

Abstract

An improved card reader and a data transmission method thereof, comprising: a data input/output interface for data to enter and exit the card reader; a management system for controlling and managing the access of data; at least one data reading device, which can connect with at least one memory device to control the access of data in and out of the memory device; a data sharing control device, which provides the data access path when the data is in and out of the memory device; when the data input/output interface is connected with a computer system, and the memory device is connected with the data reading device and the data sharing control device, the management system and the computer system cooperate with each other to detect and control the data entering and exiting the memory device, and the entered and exiting data are entered and exited by the path provided by the data sharing control device. The structure of the invention after being integrated is simpler than the prior art, and can save a lot of on maintenance and cost; meanwhile, the simplicity of transmission can be ensured in data transmission.

Description

An improved card reader and its data transmission method

technical field

The invention relates to a card reader and its data transmission method, in particular to an integrated card reader with a simple structure and its data transmission method to a memory card.

Background technique

The popular card readers on the market today are divided into internal card readers and external card readers. However, whether it is an internal connection type or an external connection type, it is very important in the simplification of its structure or the size of the volume. Structural simplification or volume reduction are very important for consumers to install on general personal computers or carry out notebook computers; on the other hand, reducing the volume can also reduce the cost of manufacturers. Therefore, under the condition of bringing benefits to both sides, it is an increasingly obvious trend to develop the structure or volume of the card reader towards light, thin, short, and small; even, there are also technological breakthroughs. It is a continuous upward development.

As far as the structure of the general known technology is concerned, please refer to FIG. 1 , which is a schematic structural diagram of a known card reader. The card reader includes a data input and output interface 11', the data input and output interface 11' takes the form of USB; a management system 13', including a control unit 131', a memory unit 133', and a processing unit 135'; A data reading device 15', including a Compact Flash card reading device 151', a Memory Stick card reading device 153', a Smart Media card reading device 155', a SecureDigital card reading device 157', the data The reading device 15' generally adopts two ways to supply the market, that is, one slot can read a variety of different memory cards and multiple slots can read different memory cards respectively; wherein, each reading device has its corresponding memory card The card is controlled by two kinds of communication interfaces for reading and accessing. For example, the Compact Flash card reading device 151' communicates with a Compact Flash card 171 through a data transmission interface 1511' having eight terminals and a control interface 1513'. 'Connection; the Memory Stick card reader 153' is connected with a Memory Stick card 173' through a data transmission interface 1531' with four terminals and a control interface 1533'; the Smart Media card reader 155' is connected by A data transmission interface 1551' with eight terminals is connected with a control interface 1553' and a SmartMedia card 175'; the Secure Digital/Multi-media card reader 157' passes through a data transmission interface 1571 with four terminals 'connect with a control interface 1573' and a SecureDigital/Multi-media card 177'. Among them, the multiple terminals of each data transmission interface often lead to a complicated structure and an increase in cost. As shown in the figure, there are a total of twenty-four terminals for data transmission, which increases a lot of costs; , If there is any problem such as deformation of any terminal, and the matching method is an all-in-one card reader, the card reader must be repaired time-consuming and costly, or even the entire card reader will be scrapped.

Based on the occurrence of the above-mentioned situations, re-layouting and improving the internal structure of the card reader is a topic that needs to be actively discussed at present.

Contents of the invention

The technical problem to be solved by the present invention is to provide an improved card reader to simplify its internal structure, so that the card reader can reduce the probability of failure and reduce its maintenance cost when it fails.

Another technical problem to be solved by the present invention is to provide an improved card reader to reduce the size of the card reader so that when it is assembled on a general personal computer, the occupied space is minimized; on the other hand, if the card reader is configured It is easy to carry when using a notebook computer.

Another technical problem to be solved by the present invention is to provide an improved card reader, which can reduce production cost with a simplified structure, so it can be widely used in built-in devices of desktop computers, independent USB card readers, notebooks, etc. Built-in card readers for small computers, built-in USB card readers for printers, built-in USB card readers for home appliances, electronic photo albums, built-in card readers for portable products, mobile phones, etc.

Another technical problem to be solved by the present invention is to provide an improved card reader data transmission method, which can simply and quickly transmit data with its integrated structure and unique data transmission path.

For this reason, the present invention proposes an improved card reader, including: a data input and output interface, for the data to enter and exit the card reader; a management system, to control and manage the data in and out; at least one data reading device, so that at least A memory device can be connected with it to control access to data entering and leaving the memory device; a data sharing control device provides a path for data access when data enters and exits the memory device; when the data input and output interface is connected to a computing When the memory device is connected with the data reading device and the data sharing control device, the management system and the computer system cooperate with each other to detect and control the data entering and leaving the memory device, and the data entering and exiting is controlled by the data sharing The path provided by the device in and out.

The present invention also proposes a method for data transmission of an improved card reader, including:

(1) start;

(2) Initialize a card reader;

(3) Link the card reader with a memory device, and simultaneously link the memory device with a data reading device in the card reader and a data sharing control device in the card reader;

(4) A computer system is operated together with a management system in the card reader, and the memory is judged through the control circuit connected to the data reading device and the memory device and the data transmission circuit connected to the data sharing control device and the memory device. What kind of memory device is the device for data transmission; data starts to enter and exit the memory device, and is controlled by the control circuit, and the path through the data transmission circuit and the data sharing control device is the only data transmission path;

(5) END.

The features and advantages of the present invention are: the improved card reader of the present invention and its data transmission method, when the data input and output interface is connected with a computer system, and the memory device is connected with the data reading device and the data sharing control device, The management system and the computer system cooperate with each other to detect and control the data entering and exiting the memory device, and the entering and exiting data are entered and exited through the path provided by the data sharing control device. The integrated structure of the present invention is simpler than the known technology, so as to reduce the volume of the card reader and minimize the occupied space when it is assembled in a general personal computer; on the other hand, if it is configured in a notebook computer , easy to carry, can save a lot of maintenance and cost; at the same time, it can ensure the simplicity and speed of data transmission.

Description of drawings

Fig. 1 is a structural schematic diagram of a known card reader;

Fig. 2 is a schematic diagram of the internal structure of the present invention;

Fig. 3 is a flow chart of data transmission in the present invention.

Explanation of reference numbers:

11'Data input and output interface 13'Management system 131'Control unit

133'memory unit 135'processing unit 15'data reading device

151'Compact Flash Card Reader 153'Memory Stick Card Reader

1513’control interface 1531’data transmission interface 1533’control interface

1551'data transmission interface 155'Smart Media card reading device 1511'data transmission interface

1553'Control Interface 157'Secure Digital Card Reader

1571'data transmission interface 1573'control interface

171’Compact Flash Card 173’Memory Stick Card 175’Smart Media Card

177’Secure Digital/Multi-media card 11 data input and output interface

13 Management system 131 Control unit 133 Memory unit

135 processing unit 15 data reading device 151 memory card reading device

1513 control circuit 153 memory card reading device 1533 control circuit

155 Memory card reading device 1553 Control circuit 157 Memory card reading device

1573 Control Circuit 171 Memory Device 173 Memory Device

175 memory device 177 memory device 19 data sharing control device

191 data transmission line (1) to (7) step numbers

Detailed ways

In order to further understand the technical solutions, features and effects of the present invention, the present invention will be described in detail by means of the following specific embodiments in conjunction with the accompanying drawings, as follows:

Please refer to FIG. 2 , a schematic diagram of the internal structure of the present invention. A kind of improved card reader of the present invention comprises: a data input and output interface 11, for data input and output this card reader, this data input and output interface 11 can adopt USB, 1394, RS232, COM port, parallel port, PS2, PCMCIA, 802.11 columns, bluetooth, infrared and other systems to carry out diversified transmission; a management system 13, which controls and manages the entry and exit of data, and the management system 13 further includes: a control unit 131, a memory unit 133 and a processing unit 135, to carry out the above-mentioned functions; a data reading device 15, at least one memory device can be connected with it, so as to control the access of the data entering and leaving the memory device, the data reading device 15 can be a memory card An access device, such as a memory card slot, communicates control instructions with the memory device through a simple control circuit. The memory card slot can be any of the following: all-in-one memory card slot, multiple memory card slot, and the memory device can also be any of the following: Compact Flash Card, IBM Micro-drive, Smart Media Card, xD-picture Card, Multi-media Card, Secure Digital Card, Memory Stick Card, Memory Stick PRO Card, please refer to as shown in the figure, the data reading device 15 comprises a memory card reading device 151, a memory card reading device 153, a memory card reading device 155, a memory card reading device 157, Respectively through a control circuit 1513, a control circuit 1533, a control circuit 1553, a control circuit 1573 and a memory device 171, a memory device 173, a memory device 175, a memory device 177 are connected, so that these memory devices are connected to When the data reading device 15 is used, control is carried out; a data sharing control device 19 provides a path for data access when the data enters and exits the memory device, and the data sharing control device 19 is connected to each The memory device transmits data, and the data transmission line 191 only has eight terminals; in short, when the data input and output interface 11 is connected with a computer system (not shown in the figure) such as a general computer and a data storage device, and When any one or multiple memory devices are connected with the data reading device 15 and the data sharing control device 19, the management system 13 and the computer system cooperate with each other to detect and control the data entering and leaving the memory devices, and the data entering and exiting are controlled by The path provided by the data sharing control device 19 enters and exits, that is, the data transmission line 191 . Therefore, the integrated data transmission line 191 has only eight terminals, which is far less than the twenty-four terminals in the prior art, and saves a lot in terms of cost and maintenance.

Please refer to FIG. 3 , the data transmission flow chart of the present invention. A method for data transmission of an improved card reader of the present invention will be described below, the method comprising:

(1) start;

(2) Initialize a card reader; that is, a data input and output interface 11 in the card reader is connected with a calculator system;

(3) The computer system works together with a management system 13 in the card reader to detect any memory card reader 151, memory card reader 153, and memory card in a data reader 15 in the card reader. Whether reading device 155, memory card reading device 157 or a plurality thereof have at least one memory device, such as any memory device 171, memory device 173, memory device 175 and memory device 177 or a plurality thereof, if so, then enter step (4), if not, then return to step (2);

(4) Link the card reader with a memory device, that is, the memory device 171 <here is an example of connecting a memory device> simultaneously with the memory card reader 151 and the memory card reader 151 in the data reader 15 in the card reader A data sharing control device 19 is connected in the card reader;

(5) Interpret the memory device 171, and separately carry out the control of data entering and leaving the memory device 171 and the unique transmission of data entering and exiting the memory device 171, that is, the computer system and the management system 13 in the card reader operate together, through the data The control line 1513 connecting the reading device 15 to the memory device 171 and the data transmission line 191 connected to the data sharing control device 19 and the memory device 171 determine what type of memory device the memory device 171 is for data transmission;

(6) The data starts to enter and exit the memory device 171, and is controlled by the control circuit 1513, and the path via the data transmission circuit 191 and the data sharing control device 19 is the only data transmission path;

(7) END.

The data input and output interface 11 can be USB, 1394, RS232, COM port, parallel port, PS2, PCMCIA, 802.11 column, bluetooth or infrared ray and other systems to carry out diversified transmission; the management system 13 further includes: a control unit 131. A memory unit 133 and a processing unit 135; the data reading device 15 is a memory card access device, such as a memory card slot, and the memory card slot can be an all-in-one memory card slot or a plurality of The mode of memory card slot; On the other hand, memory device 171,173,175,177 can be following any: Compact Flash Card, IBM Micro-drive, Smart Media Card, xD-picture Card, Multi-media Card, Secure Digital Card, Memory Stick Card, Memory Stick PRO Card; the calculator system can also be a general computer or a data storage device.

As can be seen from the above, an improved card reader data transmission method of the present invention adopts a separate processing mode for control and data transmission, especially the data sharing control device 19 planned in addition, which can perform integrated data transmission, so as to Ensure simplicity in transmission.

Based on the above, the present invention provides an improved card reader and its data transmission method, and an integrated card reader with a simple structure and its data transmission memory card method. Among them, the integrated structure is simpler than the known technology, and can save a lot in maintenance and cost; on the other hand, it can ensure the simplicity of data transmission.

Although the present invention has been disclosed with specific embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make equivalent changes and Modifications should still fall within the scope of this patent.

Claims (18)

1. a modified card reader is characterized in that, comprising:

One data input output interface, the funding material passes in and out this card reader;

One management system, the turnover of control and managerial data;

At least one data fetcher makes at least a memory storage and its binding, to carry out the access control for the data of this memory storage of turnover;

One data is shared control device, when data turnover memory storage, and the path of the access of giving information;

When data input output interface and calculator system binding, and when memory storage and data fetcher, data are shared the control device binding, the cooperate with each other data of detecting, control turnover memory storage of this management system and this calculator system, and the data of this turnover is passed in and out by the path that the shared control device of this data is provided.

2. a kind of modified card reader as claimed in claim 1, it is characterized in that this data input output interface is to adopt following any system: USB, 1394, RS2 32, COM port, parallel port, PS2, PCMCIA, 802.11 row, bluetooth, infrared ray.

3. a kind of modified card reader as claimed in claim 1 is characterized in that this management system comprises: at least one control module, at least one mnemon and at least one processing unit.

4. a kind of modified card reader as claimed in claim 1 is characterized in that, this data fetcher is a memory card access device, and carries out the communication of steering order by simple operation circuit and this memory storage.

5. a kind of modified card reader as claimed in claim 4 is characterized in that described memory card access device is the memory card slot.

6. a kind of modified card reader as claimed in claim 5 is characterized in that, this memory card slot is following any mode: All-in-One memory card slot, a plurality of memory card slot.

7. a kind of modified card reader as claimed in claim 1, it is characterized in that, this memory storage be following any: Compact Flash Card, IBM Micro-drive, Smart Media Card, xD-picture Card, Multi-media Card, Secure Digital Card, Memory Stick Card, Memory Stick PRO Card.

8. a kind of modified card reader as claimed in claim 1 is characterized in that, this data is shared control device and carried out the transmission of data by a simple data transmission link and a memory storage.

9. a kind of modified card reader as claimed in claim 1 is characterized in that, this calculator system be following any: general computing machine, data storage device.

10. the method for a modified card reader data transmission comprises:

(1) beginning;

(2) initialization one card reader;

(3) this card reader and a memory storage are linked, and with this memory storage simultaneously with card reader in a data fetcher and the card reader data share control device and link;

(4) with a management system operate together in a calculator system and the card reader, share the data transmission link that control device links to each other with memory storage via the operation circuit that this data fetcher links to each other with this memory storage with this data, judge that memory storage is the memory storage of which kind of form, to carry out the transmission of data; Data begins to pass in and out memory storage, and is controlled by this operation circuit, and the path of sharing control device via this data transmission link and this data is unique data transfer path;

(5) finish.

11. the method for a kind of modified card reader data transmission as claimed in claim 10 is characterized in that, step (2) may further comprise the steps:

(21) a data input output interface and a calculator system link in this card reader;

(22) a management system operate together in this calculator system and the card reader, whether a data fetcher has at least one memory storage in the detecting card reader, if, then enter step (3), if not, then get back to step (21).

12. the method for a kind of modified card reader data transmission as claimed in claim 11, it is characterized in that this data input output interface is to adopt following any system: USB, 1394, RS232, COM port, parallel port, PS2, PCMCIA, 802.11 row, bluetooth, infrared ray.

13. the method for a kind of modified card reader data transmission as claimed in claim 11 is characterized in that, this management system comprises: at least one control module, at least one mnemon and at least one processing unit.

14. the method for a kind of modified card reader data transmission as claimed in claim 11 is characterized in that, this data fetcher is a memory card access device.

15. the method for a kind of modified card reader data transmission as claimed in claim 11 is characterized in that, this data fetcher is a kind of memory card slot.

16. the method for a kind of modified card reader data transmission as claimed in claim 15 is characterized in that, this memory card slot be following any: All-in-One memory card slot, a plurality of memory card slot.

17. the method for a kind of modified card reader data transmission as claimed in claim 11, it is characterized in that, this memory storage be following any: Compact Flash Card, IBM Micro-drive, SmartMedia Card, xD-picture Card, Multi-media Card, Secure Digital Card, Memory Stick Card, Memory Stick PRO Card.

18. the method for a kind of modified card reader data transmission as claimed in claim 11 is characterized in that, this calculator system be following any: general computing machine, data storage device.

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