CN201846391U

CN201846391U - Mobile terminal

Info

Publication number: CN201846391U
Application number: CN2010205739303U
Authority: CN
Inventors: 徐海; 方春冬
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Priority date: 2010-10-21
Filing date: 2010-10-21
Publication date: 2011-05-25
Anticipated expiration: 2020-10-21

Abstract

A mobile terminal comprises a processing module, a user identification module, a functional circuit module and a power supply, wherein the user identification module is connected with the processing module through a first power supply circuit; the functional circuit module is connected with the processing module through a signal circuit, connected with the user identification module through a second power supply circuit, and used for controlling the functional circuit module supplying power for the user identification module; and the power supply is connected with the functional circuit module through a third power supply circuit. In the mobile terminal, the processing module controls the functional circuit module to transmit voltage of the power supply to an SIM (Subscriber Identity Module) card, so that the SIM card can continually and stably obtain voltage conforming to operational requirements, and the operational stability of the SIM card and the success rate of SIM card reading can be improved, that is, the success rate of information identification of the SIM card is improved.

Description

Portable terminal

[technical field]

The utility model relates to mobile device, especially a kind of portable terminal.

[background technology]

Along with the development of electronic communication, electronic communication progressively enters into the lives of the people, the application of mobile electronic payment occurred, for example, and the application of MIFARE (smart card module for reading and writing), the application of stored value card etc.These application mainly are the application with the radio-frequency (RF) identification of card-scanning type, are easy to carry by SIM (Subscriber IdentityModule subscriber identification module) card is integrated on the mobile device, for example the mobile-phone payment scheme of China Telecom.Fig. 1 is the principle assumption diagram of mobile-phone payment, and SIM card is connected the communication and the application of communicating by letter and just can realize non-telecommunications with the radiofrequency field of outside by contact C4 with antenna with C8.Meanwhile, SIM card is electrically connected with AP (Application Processor application processor) by VCC supply line, RST reset circuit, CLK clock circuit, IO input/output circuitry respectively.Mobile phone is in working order the time, and application processor provides SIM card work required voltage, can guarantee the normal use of SIM.

And in mobile phone shutdown, SIM card just can't be powered by AP.Though this SIM card can produce induced voltage by the antenna induction external magnetic field, obtain electric energy.But whether the intensity of external magnetic field meets the requirements, and whether the voltage that obtains by magnetic field induction can satisfy the operating voltage of SIM card, and these all are unsettled.

[utility model content]

Based on this, be necessary to provide a kind of stable portable terminal.

A kind of portable terminal, comprise processing module and the subscriber identification module that is connected with processing module by first supply line, also comprise by signal line being connected with processing module and being connected with subscriber identification module, and be used to control the functional circuit module of described subscriber identification module power supply and the power supply that is connected with described functional circuit module by the 3rd supply line by second supply line.

Preferably, described functional circuit module comprises not gate and power conversion unit; The input of described not gate is connected with described processing module by signal line, and the output of described not gate is connected with described power conversion unit by signal line; Described power conversion unit is connected with described power supply, subscriber identification module by supply line respectively.

Preferably, described power conversion unit is low pressure linear voltage regulator or dc voltage changer.

Preferably, described processing module is application processing module or base band.

Preferably, described power supply is lithium battery or button cell.

In the above-mentioned portable terminal, processing module transfers to SIM card to power source voltage by the controlled function circuit module, guarantees that SIM card can continual and steady acquisition meets the voltage of job requirement, improve the stability and the SIM card of SIM card work and swipe the card, be i.e. the success rate of the process of SIM card identifying information.

[description of drawings]

Fig. 1 is the module map of traditional power supply circuits;

Fig. 2 is the module map of the power supply circuits of an embodiment;

Fig. 3 is the detailed block diagram of the power supply circuits functional circuit module of an embodiment.

[embodiment]

Fig. 2 shows the portable terminal of an embodiment, comprise: processing module 10, the SIM card 30 that is connected with processing module 10 by first supply line, be connected with processing module 10 and be connected with SIM card 30 by signal line, and control is to the functional circuit module 20 of SIM card 30 power supplies and the power supply 40 that is connected with functional circuit module 20 by the 3rd supply line by second supply line.

Processing module 10 is used for providing voltage to SIM card 30, perhaps functional circuit module 20 is sent control signal, 20 pairs of SIM card of controlled function circuit module 30 output or stop to export the voltage that meets SIM card 30 work.In the present embodiment, processing module 10 is provided with GPIO (General purpose IO, general I/O) pin, by opening or closing of this GPIO pin controlled function circuit module 20.For example, when processing module 10 was in running order or charged, this GPIO pin was made as high level, and processing module 10 directly provides voltage by first supply line to SIM card 30.When processing module 10 is in the state of quitting work or does not have when charged, this GPIO pin is a low level, and then 30 outputs of 20 pairs of SIM card of controlled function circuit module meet the voltage of SIM card 30 work, and this voltage that meets SIM card 30 work is 3V preferably.In other embodiments, this processing module 10 can be AP (Application Processor, application processor) or BB (baseband, base band) etc.

Functional circuit module 20 is used for according to the control signal of processing module 10 to SIM card 30 outputs or stop to provide voltage.In the present embodiment, functional circuit module 20 stops the voltage of power supply 40 is provided to SIM card 30 according to the control signal of the high level of processing module 10; If this control signal is a low level, then power supply 40 is converted to the voltage that meets SIM card 30 work, and provides to SIM card 30.Particularly, as shown in Figure 3, this functional circuit module 20 comprises not gate 21 and power conversion unit 22; The input of this not gate 21 is connected with this processing module 10 by signal line, and the output of this not gate 21 is connected with this power conversion unit 22 by signal line; This power conversion unit 22 is connected with SIM card 30 with this power supply 40, second supply line by the 3rd supply line respectively.The control signal of the high level of processing module 10 becomes low level signal by not gate 21, and control power conversion unit 22 stops the voltage transmission of power supply 40 to SIM card 30; In like manner, the low level control signal of processing module 10 becomes high level signal by 21 of not gates, and control power conversion unit 22 becomes to meet the voltage of SIM card 30 voltage transitions of power supply 40, and transfers to SIM card 30.Above-mentioned power conversion unit 22 is LDO (low dropout regulator, low pressure linear voltage regulator) or DC-DC (direct current-direct current, dc voltage changer), for SIM card 30 provides suitable, stable voltage.Particularly, the output of the enable pin NAND gate 21 of LDO connects, and the positive pole of power supply 40 is connected with the input pin of LDO, and the output pin of LDO is connected with the VCC pin of SIM card.

SIM card 30 (Subscriber Identity Module, subscriber identification module) is used for communicating and using with the external world.

Power supply 40 is used to the electric energy that provides continual and steady.In the present embodiment, this power supply 40 can be lithium battery or button cell.

This processing module 10 directly provides voltage by first supply line to SIM card 30 in working order the time.When processing module 10 quits work, then by not gate 21 control power conversion units 22,22 voltages that the voltage transitions of power supply 40 become to meet SIM card 30 work of power conversion unit, and transfer to SIM card 30, guarantee the work that SIM card 30 can be continual and steady, improve the swipe the card success rate of (process that is the SIM card identifying information) of SIM card 30.

In the present embodiment, this portable terminal is in particular mobile phone, and SIM card specifically can be Payment Card or identification card etc.In this mobile phone turn-off, by functional circuit module 20 voltage transitions of power supply 40 is become to meet the voltage that SIM card 30 requires, and transfer to SIM card 30, obtain continual and steady electric energy, improve the success rate that this SIM card 30 is swiped the card, strengthened the experience that the client uses this mobile phone.

The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims

1. portable terminal, comprise processing module and the subscriber identification module that is connected with processing module by first supply line, it is characterized in that, also comprise by signal line being connected with processing module and being connected with subscriber identification module, and be used to control the functional circuit module of described subscriber identification module power supply and the power supply that is connected with described functional circuit module by the 3rd supply line by second supply line.

2. portable terminal as claimed in claim 1 is characterized in that described functional circuit module comprises not gate and power conversion unit; The input of described not gate is connected with described processing module by signal line, and the output of described not gate is connected with described power conversion unit by signal line; Described power conversion unit is connected with described power supply, subscriber identification module by supply line respectively.

3. portable terminal as claimed in claim 2 is characterized in that, described power conversion unit is low pressure linear voltage regulator or dc voltage changer.

4. portable terminal as claimed in claim 1 is characterized in that, described processing module is application processing module or base band.

5. portable terminal as claimed in claim 1 is characterized in that, described power supply is lithium battery or button cell.