CN202121792U

CN202121792U - Switching circuit of double client identification template and cellphone terminal with circuit

Info

Publication number: CN202121792U
Application number: CN2011200670683U
Authority: CN
Inventors: 杨志国; 陈爱晖
Original assignee: SPROCOMM TECHNOLOGIES (WUXI) Co Ltd
Current assignee: Shenzhen seedlings of cereal crops communication Science and Technology Ltd.
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2012-01-18
Anticipated expiration: 2021-03-07

Abstract

The utility model relates to the communication circuit field, and discloses a switching circuit of a double client identification template and a cellphone terminal with the circuit. The switching circuit comprises a first SIM stand, a second SIM stand, an insertion detection switch, a switching circuit and a master control chip. The insertion detection switch is arranged at an inner side of the first SIM stand; when the first SIM stand has an inserted SIM card, the insertion detection switch changes from an open state to a closed state, and a first electrode and a second electrode at two ends of the insertion detection switch are respectively electrically connected with a trigger end of the switching circuit and a trigger end of the master control chip; a SIM pathway is connected between the master control chip and the switching circuit; the switching circuit is electrically connected with a SIM circuit in the first SIM stand through the first SIM pathway; and the switching circuit is electrically connected with a SIM circuit in the second SIM stand through a second SIM pathway. Automatic switching between double SIM cards can be realized by using the switching circuit of double client identification template and cellphone terminal with circuit, so that usage convenience of a user is increased.

Description

Two client's recognition template commutation circuits and with the mobile phone terminal of this circuit

Technical field

The utility model relates to the telecommunication circuit field, relates in particular to a kind of double SIM card commutation circuit and with the mobile phone terminal of this circuit.

Background technology

Existing many client identification modules (Subscriber Identity Module is called for short SIM) handoff technique is mainly used on the mobile phone.Treat mobile phone such as present double card double standby mobile phone and two card one.

The mobile phone of present double-card dual-standby type mainly adopts a master chip; This master chip connects two SIMs respectively; Mode through the software protocol stack drives two SIM cards simultaneously; Make the standby simultaneously effectively of two SIMs, but adopt this mode need adopt the master chip of higher cost, the complete machine cost is higher.

And for most of users; Two cards singly treat to satisfy user's demand, and present two cards treat that singly mobile phone mainly switches through the user instruction switching way, such as: when needs switch the SIM that uses non-effective status; The user indicates operation step by step through cell phone keyboard according to screen; Trigger the inner main control chip of mobile phone and export signal to external circuit, this signal controlling external circuit switches to effective SIM with SIM not yet in effect, and cuts off another SIM.Adopt comparatively inconvenience of prior art user operation, use experience is relatively poor.

The utility model content

The utility model embodiment first purpose is: a kind of pair of client's recognition template commutation circuit is provided, can realizes the automatic switchover of double SIM card, improve the convenience that the user uses.

The utility model embodiment second purpose is: a kind of mobile phone terminal with two client's recognition template commutation circuits is provided, can realizes the automatic switchover of double SIM card, improve the convenience that the user uses.

A kind of pair of client identification module commutation circuit that the utility model embodiment provides comprises:

The first client identification module card seat, the second client identification module card seat, insertion sense switch, commutation circuit and main control chip, wherein,

Said insertion sense switch is arranged at the inboard of the said first client identification module card seat, and when having client identification module card to insert in the said first client identification module card seat, said insertion sense switch is in closure state by off-state,

First electrode, second electrode at said insertion sense switch two ends are electrically connected with the trigger end of said commutation circuit and the trigger end of said main control chip respectively,

Be connected with the client identification module path between said main control chip and the said commutation circuit,

Said commutation circuit is electrically connected with client identification module circuit in the said first client identification module card seat through the first client identification module path; Said commutation circuit is electrically connected with client identification module circuit in the said second client identification module card seat through the second client identification module path

When said insertion sense switch was closed, said main control chip triggered said commutation circuit, and said commutation circuit enables the said first client identification module path, cuts off the said second client identification module path.

The utility model embodiment provides a kind of mobile phone terminal, comprising: above-mentioned two client identification module commutation circuits.

Therefore owing to use the commutation circuit of present embodiment, when first SIM inserts, thereby main control chip can be realized the break-make of automatic switchover SIM path according to the folding condition that inserts testing circuit, realizes that SIM is switched in identification automatically.

Description of drawings

Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the improper qualification to the utility model, in the accompanying drawings:

The structural representation of a kind of double SIM card commutation circuit that Fig. 1 provides for the utility model embodiment 1;

The operation principle sketch map of the insertion sense switch in a kind of double SIM card commutation circuit that Fig. 2 the utility model embodiment 1 provides.

Embodiment

To combine accompanying drawing and specific embodiment to specify the utility model below, be used for explaining the utility model in the illustrative examples and the explanation of this utility model, but not as the qualification to the utility model.

Embodiment 1:

Referring to Fig. 1, shown in 2, comprising: the first SIM seat 104, the second SIM seat 103, insert sense switch 105, commutation circuit 102 and main control chip 101.Wherein the annexation of each parts is following:

Be connected with SIM path 106 between main control chip 101 and the commutation circuit 102; Commutation circuit 102 is electrically connected with client identification module circuit in the first SIM seat 104 through the first SIM path 1071; Commutation circuit 102 is electrically connected with client identification module circuit in the second SIM seat 103 through the second SIM path 1072; Insertion sense switch 105 is arranged at the inboard of the first SIM seat 104; When having SIM to insert in the first SIM seat 104, the SIM in this first SIM seat 104 is conflicted to trigger and should be inserted sense switch 105, thereby makes that inserting sense switch 105 is in closure state by off-state; When the SIM in the first SIM seat 104 was extracted, this insertion sense switch 105 was in off-state.First electrode 1051, second electrode 1052 that insert sense switch 105 two ends are electrically connected respectively at the trigger end of commutation circuit 102 and the trigger end of main control chip 101.

Its operation principle is following: after in the first SIM seat 104, inserting SIM; This SIM is conflicted to trigger and is inserted sense switch 105, makes that inserting sense switch 105 switches to closure state by original off-state, at this moment; The level of first electrode 1051, second electrode 1052 that inserts sense switch 105 is by low and high; This first electrode 1051, second electrode 1052 trigger main control chip 101, and main control chip 101 drives commutation circuit 102, and commutation circuit 102 is according to the control of main control chip 101; Make the first SIM path that is connected with the first SIM seat, 104 physical links current effectively (input port enables); Thereby make the current effective status that is in of SIM on the SIM seat 104 of winning, cut off the second SIM path that is connected with the second SIM seat, 103 physical links, make the SIM in the 2nd SIM path be in disarmed state.

After SIM is extracted in the first SIM seat 104, insert sense switch 105 and switch to off-state by original closure state.At this moment; The level of first electrode 1051, second electrode 1052 that inserts sense switch 105 is by high step-down; This first electrode 1051, second electrode 1052 trigger main control chip 101, and main control chip 101 drives commutation circuit 102, and commutation circuit 102 is according to the control of main control chip 101; Make the current cut-out of the first SIM path that is connected with the first SIM seat, 104 physical links; Thereby make the current disarmed state that is in of SIM on the SIM seat 104 of winning, enable the second SIM path that is connected with the second SIM seat, 103 physical links, make the SIM in the 2nd SIM path be in effective status.

In mobile phone terminal, use above-mentioned commutation circuit 102, when first SIM inserts, thereby main control chip 101 can be realized the break-make of automatic switchover SIM path according to the folding condition that inserts testing circuit, realizes that SIM is switched in identification automatically.

More than technical scheme that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims

1. a two client identification module commutation circuit is characterized in that, comprising: the first client identification module card seat, the second client identification module card seat, insertion sense switch, commutation circuit and main control chip, wherein,

2. a mobile phone terminal is characterized in that, comprises described pair of client identification module commutation circuit of claim 1.