CN101394194B - Electronic device with function of identifying external antenna and application of external antenna module - Google Patents

Abstract

An electronic device with an external antenna identification function comprises a plurality of external antenna modules, wherein each external antenna module comprises an antenna and an identification tag unit, and the identification tag unit is used for generating a specific identification signal according to an inquiry signal so as to identify the external antenna module; a connection port; an identification tag reading module, coupled to the connection port, for outputting the query signal when an external antenna module of the plurality of external antenna modules is coupled to the connection port, and generating an identification result according to the specific identification signal generated by the external antenna module of the plurality of external antenna modules; and an electromagnetic wave transceiver module, coupled to the connection port and the identification tag reading module, for transmitting and receiving corresponding electromagnetic wave signals according to the identification result.

Description

Electronic device with function of identifying external antenna and application of external antenna module

technical field

The present invention relates to an electronic device with an external antenna identification function, in particular to an electronic device that can automatically identify a coupled external antenna module by reading an identification tag unit disposed on the external antenna module.

Background technique

In order to meet a variety of different applications and wireless communication requirements for mobile terminal equipment, the corresponding signal frequency must be considered when designing the antenna to meet specific wireless technical specifications, such as wireless network (WLAN, Wireless Local-Area Networking), Bluetooth (Bluetooth ), mobile communications, Global Positioning System (Global Positioning System, GPS), digital TV (Digital TV) and Worldwide Interoperability for Microwave Access (WiMAX), etc. However, for handheld mobile terminal devices such as mobile phones, personal digital assistants (Personal Digital Assistant, PDA) or ultra mobile computers (Ultra Mobile PC, UMPC), designers must also reduce their weight and volume as much as possible to increase their convenience. Therefore, how to design a multi-frequency antenna that can receive various electromagnetic wave signals and maintain the convenience of handheld mobile terminal equipment in a limited space is a very severe challenge.

In this case, connecting the antenna externally to achieve the expected performance can be the primary consideration in design. Generally speaking, the external antenna needs to be coupled to the electromagnetic wave transceiver through a specific connection port (Connector) on the mobile terminal device to send and receive corresponding electromagnetic wave signals. Therefore, it is usually necessary to set multiple connection ports on the mobile terminal device to meet the requirements of various external antennas. However, with the increase of wireless technology specifications, this not only increases the size of the mobile terminal equipment, but also increases the troubles of the users.

Of course, the implementation of the external antenna can also be similar to the built-in antenna, integrating antennas of various wireless technical specifications into an external antenna module so as to be connected to the mobile communication device through a single connection port. However, if the antennas of all wireless technical specifications are incorporated into the design at the same time, it will not only increase the difficulty of the design, but also be a waste.

Contents of the invention

Therefore, the main purpose of the present invention is to provide an electronic device with an external antenna identification function.

The invention discloses an electronic device capable of identifying an external antenna, which includes a connection port for coupling an external antenna module; an identification tag reading module coupled to the connection port for reading the coupled antenna An identification signal of the external antenna module is read and output corresponding identification result of the antenna module; Corresponding electromagnetic wave signal.

The present invention also discloses an external antenna module, which includes a signal transmitting and receiving end for coupling an electronic device; an antenna coupled to the signal transmitting and receiving end for sending and receiving electromagnetic wave signals of a corresponding frequency; and a The identification tag unit is coupled to the signal transmitting and receiving end for generating a specific identification signal.

Description of drawings

1 is a schematic diagram of an electronic device with an external antenna identification function and an external antenna module corresponding to the electronic device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an electronic device with an external antenna identification function and an external antenna module corresponding to the electronic device according to another preferred embodiment of the present invention.

Explanation of main component symbols

10, 20 Electronic devices

31, 32, 33, 30 External antenna module

110, 314, 324, 334, 210, 304 connection ports

120, 220 Identification tag reading module

130, 230 Electromagnetic wave transceiver module

310, 320, 330, 300 Antenna

312, 322, 332, 302 Identification label unit

QUERY_SIGNAL Query signal

ID_SIGNAL_1～ID_SIGNAL_n, ID_SIGNAL identification signal

ID_RESULT Identification Result

225 Microprocessor

306, 226 filter

CTRL control signal

2300～230n electromagnetic wave transceiver

235 Transceiver switching module

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of an electronic device 10 with an external antenna identification function and external antenna modules 31 , 32 , 33 corresponding to the electronic device 10 according to the present invention. The electronic device 10 includes a connection port 110 , an identification tag reading module 120 and an electromagnetic wave transceiver module 130 .

The external antenna modules 31, 32, 33 are respectively provided with an antenna 310, 320, 330, an identification label unit 312, 322, 332 and a connection port 314, 324, 334, wherein the plurality of connection ports 314, 324 , 334 for coupling with the connection port 110 of the electronic device 10, so that the electronic device 10 can be coupled with the connection port 110 through the plurality of connection ports 314 (324 or 334), then the electronic device 10 can read the plurality of Internal data of the external antenna module 31 (32 or 33) (for details, please refer to the following).

Since it is difficult and bottleneck in the design to integrate antennas with different functions into the same module, the external antenna modules 31, 32, 33 can combine antennas according to technical feasibility, or according to actual use. According to the requirements, antennas with different functions that need to be used at the same time are combined, and different tags are given to different combinations. In this way, the electronic device 10 can control the electromagnetic wave transceiver module to send and receive corresponding electromagnetic wave signals according to the result of reading the identification tag, so as to achieve the optimization of performance and use.

Wherein, the antenna module 31 can be an antenna module that receives a Global Positioning System (Global Positioning System, GPS) and a digital TV signal function, and the antenna module 32 can be a function that receives a Global Positioning System (Global Positioning System, GPS) and a mobile phone signal. The antenna module, or the antenna module 33 may be an antenna module capable of receiving GPS, mobile phone signals and digital TV signals.

Preferably, the electronic device 10 of the present invention may be a mobile electronic device such as a notebook computer, a Personal Digital Assistant (PDA) or an Ultra mobile PC (UMPC). In addition, the external antenna modules 31 , 32 , 33 may be various antenna modules capable of receiving signals of a single wireless technology specification, or may be antenna modules with a combination of multiple functions. In this way, the present invention not only meets the requirements of various wireless technical specifications, but also only requires a single or a small number of connection ports, thereby greatly increasing the convenience of use and reducing the difficulty of designing antennas.

The identification tag reading module 120 of the electronic device 10 is used to read the internal signal of the identification tag unit 312 (322 or 332) of each external antenna module 31 (32 or 33), which is connected between the connection port 110 of the electronic device 10 and the external antenna. When the connection port 314 (324 or 334) of the module 31 (32 or 33) is coupled; the identification label reading module 120 promptly outputs a query signal QUERY_SIGNAL to the identification label unit 312 (322 or 332), then the identification label unit 312 (322 or 332) corresponding to the inquiry signal, a corresponding identification signal ID_Signal_1 (ID_Signal_2 or ID_Signal_n) is generated;

For example, when the user couples the antenna module 31 to the connection port 110 of the electronic device 10, the identification tag reading module 120 reads the identification signal ID_Signal_1 output by the identification tag unit 310 to identify the coupled external antenna. The module is of the type 31 to generate the recognition result ID_RESULT. Next, the electromagnetic wave transceiver module 130 receives the identification result ID_RESULT output by the identification tag reading module 120, so that its receiving and transmitting mode can be set to correspond to the antenna module 31, for example, the electromagnetic wave transceiver module 130 can be switched to receive Function of GPS and digital TV signal.

Similarly, when other antenna modules 32 with different functions are coupled to the electronic device 10, the electronic device 10 can switch the electromagnetic wave transceiver module 130 after receiving the corresponding identification signal to send and receive corresponding electromagnetic wave signals to simultaneously Provide wireless network and bluetooth function. Therefore, the electromagnetic wave transceiver module 130 must have the ability to transmit and receive the above wireless signal specifications, which is not the focus of the present invention, so it will not be described in detail here.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of an electronic device 20 with an external antenna identification function and an external antenna module 30 corresponding to the electronic device 20 according to another preferred embodiment of the present invention. The electronic device 20 includes a connection port 210 , an identification tag reading module 220 , a microprocessor 225 and an electromagnetic wave transceiver module 230 .

The external antenna module 30 includes an antenna 300, an identification tag unit 302, a connection port 304 and a filter 306, wherein the filter 306 is coupled between the connection port 304 and the identification tag unit 302, and is used for receiving The signal is filtered to obtain the query signal QUERY_SIGNAL output by the electronic device 20 .

Therefore, the identification tag unit 302 can generate a specific identification signal ID_SIGNAL according to the query signal QUERY_SIGNAL output by the electronic device 20 to provide the electronic device 20 for identification. The identification tag reading module 220 may further include a filter 226, which is coupled between the connection port 210 and the identification tag reading module 220, and is used to filter the signal received by the connection port 210 so as to be coupled to the external antenna module 30. When connected to the connection port 210, the identification signal ID_SIGNAL is obtained.

The microprocessor 225 is coupled between the identification tag reading module 220 and the electromagnetic wave transceiver module 230, and the microprocessor 225 is used to receive the identification result ID_RESULT output by the identification tag reading module 220, and generate an ID_RESULT according to the identification result ID_RESULT. The control signal CTRL is used to control the electromagnetic wave transceiver module 230 to receive and transmit corresponding electromagnetic wave signals.

Compared with FIG. 1 , the electromagnetic wave transceiver module 230 further includes electromagnetic wave transceivers 2300 - 230 n and a transceiver switching module 235 . Each electromagnetic wave transceiver 2300-230n is used to send and receive an electromagnetic wave signal of a specific specification; and the transceiver switching module 235 is coupled between the connection port 210, the identification tag reading module 220 and the electromagnetic wave transceiver 2300-230n, It is used to switch the corresponding electromagnetic wave transceiver according to the control signal CTRL generated by the microprocessor 225 to send and receive electromagnetic wave signals through the external antenna module 30 .

Preferably, the identification tag unit 302 of the external antenna module 30 can be a passive tag (Passive Tag) similar to radio frequency identification technology (Radio Frequency Identification, RFID) or a simple tag composed of passive components such as inductance and capacitance. The oscillator circuit is realized. For example, when the identification tag unit 302 is implemented by a passive tag, the query signal QUERY_SIGNAL generated by the identification tag reading module 220 can be transmitted to the identification tag unit 302 through the connection port 210 as the power required for its operation, and modulated (Modulate) Generate the corresponding identification signal ID_SIGNAL.

Then, the identification label reading module 220 can check and decode the identification signal ID_SIGNAL returned by the identification label unit 302 , and generate an identification result ID_RESULT to be output to the microprocessor 225 . Therefore, the microprocessor 225 can generate the control signal CTRL according to the identification result ID_RESULT corresponding to the external antenna module 30 to control the transceiver switching module 235 to switch the required electromagnetic wave transceiver. In this way, the electronic device 20 can send and receive corresponding electromagnetic wave signals through the external antenna module 30 .

Certainly, the electronic device 20 may also include a built-in antenna (not shown in the figure), coupled to the transceiver switching module 235, for receiving and sending various electromagnetic wave signals when the reception condition is good. However, when the receiving situation becomes worse, the present invention can interrupt the connection between the built-in antenna and the electromagnetic wave transceiver module 230 by inserting the external antenna module and identifying and switching the corresponding electromagnetic wave transceiver.

In summary, the present invention can automatically identify the coupled external antenna module through the identification tag unit and the identification tag reading module respectively arranged on the external antenna module and the mobile terminal equipment, so as to send and receive corresponding electromagnetic wave signals . In this way, the present invention not only meets the requirements of various wireless technical specifications, but also only requires a single or a small number of connection ports, thereby greatly increasing the convenience of use and reducing the difficulty of designing antennas.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (17)

1. An electronic device capable of identifying an external antenna, comprising: a connection port for coupling an external antenna module; An identification tag reading module, coupled to the connection port, is used to read an identification signal of the coupled external antenna module, and output the identification result corresponding to the antenna module after reading; and An electromagnetic wave transceiver module, coupled to the connection port and the identification tag reading module, is used to send and receive corresponding electromagnetic wave signals according to the identification result. 2. The electronic device as claimed in claim 1, wherein the identification tag reading module is further used to output an inquiry signal so that the external antenna module generates the identification signal. 3. The electronic device as claimed in claim 2, wherein the external antenna module comprises: a signal transmitting and receiving terminal for coupling the electronic device; an antenna, coupled to the signal transmitting and receiving end, for sending and receiving the corresponding electromagnetic wave signal; and An identification label unit is coupled to the signal transmitting and receiving end, and is used for generating the identification signal according to the inquiry signal. 4. The electronic device as claimed in claim 3, wherein the external antenna module further comprises a filter, coupled between the signal transmitting and receiving end and the identification tag unit, for receiving the signal transmitting and receiving end The signal is filtered to obtain the query signal. 5. The electronic device as claimed in claim 3, wherein the identification tag unit is a passive identification tag. 6. The electronic device as claimed in claim 3, wherein the identification tag unit is a resonant circuit with a specific frequency. 7. The electronic device as claimed in claim 1, wherein the identification tag reading module further comprises a filter, coupled between the connection port and the identification tag reading module, for coupling to the external antenna module When the port is connected, the signal received by the port is filtered to obtain the identification signal. 8. The electronic device as claimed in claim 1, wherein the electromagnetic wave transceiver module further comprises: a plurality of electromagnetic wave transceivers, each electromagnetic wave transceiver is used to send and receive a specific electromagnetic wave signal; and A transceiver switching module, coupled to the connection port, the identification tag reading module and the plurality of electromagnetic wave transceivers, used to switch the corresponding electromagnetic wave transceivers according to the identification result output by the identification tag reading module , to send and receive electromagnetic wave signals. 9. The electronic device as claimed in claim 8, further comprising a microprocessor, coupled between the identification tag reading module and the transceiver switching module, for As a result of the identification, a control signal is generated to control the transceiver switching module. 10. The electronic device as claimed in claim 1, further comprising a built-in antenna coupled to the electromagnetic wave transceiver module. 11. The electronic device according to claim 10, when the electromagnetic wave transceiver module transmits and receives electromagnetic wave signals according to the identification result, the connection between the built-in antenna and the electromagnetic wave transceiver module is interrupted. 12. The electronic device as claimed in claim 1 is a notebook computer. 13. The electronic device as claimed in claim 1 is a personal digital assistant (PDA). 14. The electronic device according to claim 1 is an ultra mobile computer (UMPC). 15. An external antenna module, comprising: a signal transmitting and receiving end for coupling an electronic device; An antenna, coupled to the signal transmitting and receiving end, is used to send and receive electromagnetic wave signals of corresponding frequency; and An identification tag unit is coupled to the signal transmitting and receiving end and used for generating a specific identification signal. 16. The external antenna module as claimed in claim 15, wherein the identification tag unit generates the specific identification signal according to an inquiry signal output by the electronic device. 17. The external antenna module as claimed in claim 16, further comprising a filter, coupled between the signal transmitting and receiving end and the identification tag unit, for filtering the signal received by the signal transmitting and receiving end , to obtain the query signal.

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