CN104638711A - Mobile equipment and charging system for same - Google Patents
Mobile equipment and charging system for same Download PDFInfo
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- CN104638711A CN104638711A CN201310571240.2A CN201310571240A CN104638711A CN 104638711 A CN104638711 A CN 104638711A CN 201310571240 A CN201310571240 A CN 201310571240A CN 104638711 A CN104638711 A CN 104638711A
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- interface
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- equipment inspection
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a charging system for mobile equipment. The charging system comprises a first interface, a second interface and a charging chip. The first interface and the second interface can support charging and data transmission multiplexing, and the charging chip is connected with a battery; one interface is conducted with the charging chip when externally connected with power input, and the other interface is disconnected from the charging chip; one of the two interfaces is conducted with the charging chip when the two interfaces are externally connected with power input. The charging system has the advantages that the first interface or the second interface can be individually externally connected with a power source to charge the battery, and the battery also can be charged by one interface while the other interface is only used for transmitting data; the two interfaces are respectively positioned at the ends of the mobile equipment in two different directions, and accordingly users can reposition charging lines and can conveniently hold the charging system with the hands. The invention further discloses the mobile equipment. The charging system is used for the mobile equipment.
Description
Technical field
The present invention relates to mobile device technical field, particularly relate to a kind of charging system of mobile device and use its mobile device.
Background technology
Along with the development of mobile device technology, the application such as the amusement of mobile device and online is more and more, causes that its frequency of utilization is high, power consumption is fast.User in use, appears at unavoidably while operating mobile device and charges to it, and taking on the telephone in such as limit charging limit, plays games in charging limit, limit, surf the Net etc. in charging limit, limit.
In prior art, in time mobile phone being inserted charger, the position of charging wire can affect the hand-held comfortableness of user.When endways holding mobile devices, user habit charging wire interface in end face (top or bottom), such as when limit charging become make a phone call or browsing page time, charging wire is preferably in the lower end of mobile phone; Sidewards when holding mobile devices, user habit charging inlet at the side of mobile phone, such as, time the horizontal screen in limit charging limit is played games.And mobile phone only has a charging inlet at present, user can not adjust the position of charging wire, thus inconvenient hand-held.
Summary of the invention
In view of this, the present invention proposes a kind of charging system of mobile device and uses its mobile device, to solve the problem.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
A charging system for mobile device, comprising: support the charging first interface multiplexing with transfer of data and the second interface and the charging chip being connected battery;
When one of them in described first interface and described second interface is by charger or the input of data wire external power supply, one of external power supply input disconnects with described charging chip conducting, another and described charging chip;
When described first interface and the equal external power supply of described second interface input, described first interface and described second interface select a conducting.
Preferably, when the equal external power supply of described second interface of described first interface and institute inputs, described first interface and described second interface select a conducting, specifically comprise:
When described first interface and described second interface are respectively by charger and the input of data wire external power supply, one of them and the described charging chip conducting that are inputted by charger external power supply, another and the described charging chip that are inputted by data wire external power supply are disconnected.
Preferably, when the equal external power supply of described second interface of described first interface and institute inputs, described first interface and described second interface select a conducting, specifically comprise:
When described first interface and described second interface are all by charger or the input of data wire external power supply, according to the sequencing of external power supply and described charging chip conducting, keep conducting by the interface of the conducting that takes the lead in and described charging chip, interface and the described charging chip of rear conducting remain open.
Preferably, the charging system of the embodiment of the present invention also comprises: equipment Inspection module;
Described equipment Inspection module detects the power input status of first interface and the second interface and controls conducting and the disconnection of described first interface and described second interface and described charging chip.
Preferably, described first interface and described second interface all by interface bus and described equipment Inspection module direct-connected, further, described equipment Inspection module is respectively by corresponding to the first switches set of described first interface and being connected to described charging chip corresponding to the second switch group of described second interface and utilizing described first switches set and described switches set to control conducting and the disconnection of described first interface and described second interface and described charging chip respectively.
Preferably, described first switches set and the interlocking of described second switch group.
Preferably, reverser is in series with, to realize the described interlocking between described first switches set and described second switch group in the control line of the first switches set and described second switch group described in described equipment Inspection model calling.
Preferably, described first switches set comprises two the first switches, and described second switch group comprises two second switches,
Two described first switches and two described second switches interlock in couples.
Preferably, all overvoltage protection chip is connected with between described first bus and described equipment Inspection module and between described second bus and described equipment Inspection module.
Preferably, also control line is connected with between described equipment Inspection module and described charging chip.
Preferably, also application processor is connected with between described equipment Inspection module and described charging chip.
Preferably, described first interface is USB interface, described second interface is MHL interface.
The embodiment of the present invention also provides a kind of mobile device, uses charging of mobile devices system as above.
Preferably, the sidepiece that described first interface is positioned at the end of described mobile device, described second interface is positioned at described mobile device.
Beneficial effect of the present invention is, the charging system of this mobile device can charge the battery respectively by first interface or the independent external power supply of the second interface, also can be battery charging by an interface, another interface only carries out transfer of data, and first interface and the second interface lay respectively at the end of two different directions of mobile device, thus make user when charging use mobile device, the position of charging wire can be adjusted, thus facilitate hand-held.
In addition, when user is by charging limit, data wire limit use mobile device, because the electric current of data wire is very little, easily occur that power consumption electric current is greater than the situation of charging current.By charging system of the present invention, user can use charger charging while using mobile device by data wire, thus avoids the generation of above-mentioned situation.
In addition, beneficial effect of the present invention also comprises:
1, equipment Inspection module detects the power input status of first interface and the second interface, and distinguishes peripheral hardware, to control conducting and the disconnection of first interface and the second interface and charging chip.
2, application processor is connected with equipment Inspection module and charging chip respectively, can fetch equipment detection module state, configuration device detection module, accept the interruption from equipment Inspection module and process; According to the state of equipment Inspection module, charging chip can be controlled and charges the battery on the other hand.
3, equipment Inspection module is directly connected by control line with charging chip, and when mobile device is in shutdown or deep sleep state, application processor quits work, and charging chip is directly controlled to charge the battery by equipment Inspection module.
4, the setting of overvoltage protection chip, can prevent mobile device from being damaged by high voltage.
5, two the first switches respectively with two second switches are connected by inverter in couples, and are controlled by a control line by equipment Inspection module respectively.Such as when the circuit ON of first interface and charging chip, just need two the first switches are closed, high level signal so in a logic line makes the first switch close, high level signal converts low level signal to via inverter, connected second switch is disconnected, thus realizes the interlocking of the first switch and second switch.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the charging of mobile devices system of the embodiment of the present invention;
Fig. 2 is the structural representation of the mobile device of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below by way of specific embodiment and see accompanying drawing, the present invention is described in detail.
The embodiment of the present invention provides a kind of charging system of mobile device, as shown in Figure 1, comprising: support the charging first interface S1 multiplexing with transfer of data and the second interface S2 and the charging chip being connected battery;
In the present embodiment, first interface S1 is connected with charging chip by the first bus VBUS1, and the second interface S2 is connected with charging chip by the second bus VBUS2;
When one of them external power supply input in described first interface S1 and described second interface S2, one of external power supply input disconnects with described charging chip conducting, another and described charging chip;
When described first interface S1 and the equal external power supply of described second interface S2 input, described first interface S1 and described second interface S2 selects a conducting.Specifically, comprise: when described first interface S1 and described second interface S2 is respectively by charger and the input of data wire external power supply, one of them and the described charging chip conducting that are inputted by charger external power supply, another and the described charging chip that are inputted by data wire external power supply are disconnected; When described first interface S1 and described second interface S2 is all by charger or the input of data wire external power supply, according to the sequencing of external power supply and described charging chip conducting, keep conducting by the interface of the conducting that takes the lead in and described charging chip, interface and the described charging chip of rear conducting remain open.
In order to detect the power input status of first interface S1 and the second interface S2, the charging system of the present embodiment also comprises equipment Inspection module.Equipment Inspection module is connected with described second interface S2 and charging chip with described first interface S1 respectively.
In order to control conducting and the disconnection of first interface S1 and the second interface S2 and charging chip, described equipment Inspection module is respectively by corresponding to first switches set of described first interface S1 and being connected to described charging chip corresponding to the second switch group of described second interface S2.
Specifically, first interface S1 and the second interface S2 remove the main line of transmission current with outside equipment Inspection model calling, and three pins are electrically connected with equipment Inspection module in addition.When there being peripheral hardware to insert, first equipment Inspection module detects that the main line of the first bus VBUS1 or the second bus VBUS2 has electric current to pass through, and be charger or data wire further by the pin status differentiation peripheral hardware of first interface S1 or the second interface S2, and then control the break-make of the first switches set and second switch group.
The structure of the first switches set and second switch group is as follows:
Described first switches set is connected between described equipment Inspection module and described charging chip, and is arranged on the first bus VBUS1, to control the break-make of described first bus VBUS1 circuit; Described second switch group is connected between described equipment Inspection module and described charging chip, and is arranged on the second bus VBUS2, to control the break-make of described second bus VBUS2 circuit.
In order to avoid the charging current conducting simultaneously of two buses, the circuit of the circuit of the first bus VBUS1 and the second bus VBUS2 must be set to interlocking.
Described first switches set comprises two first switches A, B, and described second switch group comprises two second switches C, D, and all described second switch C, D interlock by interlocking device each described first switch A, B in couples with one.In the present embodiment, interlocking device is inverter E and F.Described inverter E, F are electrically connected with described equipment Inspection module; Each described inverter E, F be connected to described first switch A, a B and one described between second switch C, D, and respectively by a control line and described equipment Inspection model calling.
In the present embodiment, the conducting direction of a described inverter E is from described first switch A to described second switch D; The conducting direction of inverter F described in another is from described second switch C to described first switch B.That is, as shown in Figure 1, on a control line, the first switch A-inverter E-second switch D is in series with successively; In another root logic line, be in series with second switch C-inverter F-the first switch B successively, the conducting direction of two inverters E, F is contrary.
During real work, such as first switch A, B and second switch C, D are high level and connect, low level disconnects, so when the first bus VBUS1 circuit ON, just need to make two first switches A, B closed, high level signal so on a control line makes the first switch A close, and high level signal converts low level signal to via inverter E, and connected second switch D is disconnected; Low level signal in another root logic line makes second switch C disconnect, low level signal converts high level signal to via inverter F, connected first switch B is closed, thus realizes the interlocking of the first bus VBUS1 circuit and the second bus VBUS2 circuit.
In addition, because charger can not absorbed power, power can only be sent, therefore, when two chargers or other equipment interconnected with mobile device are connected with mobile device simultaneously, and output voltage not grade time, the situation that high voltage installation is discharged to low-voltage equipment by mobile device can be there is, so easy damage charger or other equipment, and voltage difference is larger, damages more serious.By the interlocking of the first bus VBUS1 circuit and the second bus VBUS2 circuit, the charging pin of two external equipments can be avoided to be communicated with.
Below to have particular application as example to be described:
In the present embodiment, first interface S1 and USB interface multiplexing; Second interface S2 and MHL interface multiplexing.
First interface S1 has three pins to be connected with equipment Inspection module, is respectively USB_D+, USB_D-and USB_ID, separately has a pin GND to be earth terminal.Wherein, USB_ID is identification equipment pin, inserts in order to identification equipment.
Second interface S2 has three pins to be connected with equipment Inspection module, is respectively MHL_D+, MHL_D-and MHL_ID, separately has a pin GND to be earth terminal.Wherein, MHL_ID is identification equipment pin, inserts in order to identification equipment.
When there being peripheral hardware to insert, first equipment Inspection module has detected that power supply is inputted by the first bus VBUS1 or the second bus VBUS2, and then equipment Inspection module access arrangement status recognition, distinguishes peripheral hardware further by the state of other three pins.
Such as, if the short circuit of USB_D+ and USB_D-pin, and USB_ID pin is not energized, then think that charger inserts; If the non-short circuit of USB_D+ and USB_D-pin, and the energising of USB_ID pin, then think that USB data line is inserted;
In like manner, if the short circuit of MHL_D+ and MHL_D-pin, and MHL_ID pin is not energized, and thinks that charger inserts; If the non-short circuit of MHL_D+ and MHL_D-pin, and the energising of MHL_ID pin, then think that MHL data wire inserts.
The make-and-break signal of first switch A, B and second switch C, D inputs by equipment Inspection module.
When first interface S1(and USB interface being detected) when having charger to insert, equipment Inspection module controls first switch A, B conducting, second switch C, D disconnect, and charger is charged the battery by charging chip.After this, if by charging wire from first interface S1(and USB interface) extract and be switched to the second interface S2(and MHL interface), second switch C, D conducting, first switch A, B disconnects, and charging path is also switched to the second interface S2 thereupon.Charging wire is switched to the plug detection of first interface S1 and switch control rule in contrast from the second interface S2.
It should be noted that the electric current that connecting charger charges is generally 1 ~ 2A, the electric current that connection data line (as being connected with computer) charges is generally below 500mA.So a way switch of connecting charger can be connected, and another way switch of connection device is disconnected, and such as, when the first connection device of first interface S1, then the second interface S2 connecting charger, so second switch C, D closes, and first switch A, B is disconnected.
When detecting that first interface S1 has charger to insert, first switch A, B conducting, second switch C, D disconnect, and charger is charged the battery by charging chip.After this, if the second interface S2 inserts another charger or other peripheral hardwares, equipment Inspection module can normally identify, but on off state remains unchanged, and namely remains the charger being connected to first interface S1 and charges the battery.
When detecting that the second interface S2 has charger to insert, second switch C, D conducting, first switch A, B disconnects, and charger is charged the battery by charging chip.After this, if first interface S1 inserts another charger or other peripheral hardwares, equipment Inspection module can normally identify, but on off state remains unchanged, and namely remains the charger being connected to the second interface S2 and charges the battery.
When detecting that first interface S1 has USB data line to insert, first switch A, B conducting, second switch C, D disconnect, and USB data line is charged the battery by charging chip, and transmits data with mobile device.After this, if the second interface S2 inserts charger, second switch C, D conducting, first switch A, B disconnects, and the charging of USB data line to battery is interrupted, and the charger being connected to the second interface S2 is charged the battery by charging chip.
When detecting that the second interface S2 has MHL data wire to insert, second switch C, D conducting, first switch A, B disconnects, and MHL data wire is charged the battery by charging chip, and transmits data with mobile device.After this, if first interface S1 inserts charger, first switch A, B conducting, second switch C, D disconnect, and the charging of MHL data wire to battery is interrupted, and the charger being connected to first interface S1 is charged the battery by charging chip.
When the equal connecting charger of first interface S1 and the second interface S2, the charger taking the lead in inserting charges the battery, and the charger of rear insertion is in blocking state.When two interfaces S1, S2 all connect non-charger and connection data line time, by take the lead in insert data wire charge the battery, the data wire of rear insertion is in blocking state.Four switches A, B, C, D are controlled by two control lines, ensure to only have a charging device to charge the battery simultaneously.
In order to ensure the normal table work of charging of mobile devices system, except upper, also comprise following structure:
Also being connected with between described equipment Inspection module and described charging chip can the control line of direct communication.When mobile device is in shutdown or deep sleep state, application processor quits work, and charging chip is directly controlled to charge the battery by equipment Inspection module.When being charged in certain limit, electricity can make application processor resume work, equipment Inspection module can switch back through application processor control charge the battery.
In addition; as shown in Figure 1; in order to prevent mobile device from being damaged by high voltage, the second bus VBUS2 on the first bus VBUS1 between described first interface S1 and described equipment Inspection module and between described second interface S2 and equipment Inspection module is all connected with overvoltage protection chip.
In addition, as shown in Figure 1, also application processor is connected with between described equipment Inspection module and described charging chip.Application processor is connected with equipment Inspection module and charging chip respectively, can fetch equipment detection module state, configuration device detection module, accept the interruption from equipment Inspection module and process; According to the state of equipment Inspection module, charging chip can be controlled and charges the battery on the other hand.
The embodiment of the present invention also provides a kind of mobile device 10, as shown in Figure 2, uses charging system as above.
Described first interface S1 and described second interface S2 lays respectively at the end on the different directions of described mobile device 10, and as in the present embodiment, first interface S1 is positioned at an end on the length direction of described mobile device 10; Described second interface S2 is positioned at a sidepiece on the Width of described mobile device 10.
Actual when using, first interface S1 and the second interface S2 all can with USB interface or MHL interface multiplexing.In view of the use of USB interface is general, so first interface S1 and/or the second interface S2 is and USB interface is multiplexing.In the present embodiment, first interface S1 and USB interface multiplexing, the second interface S2 and MHL interface multiplexing.
The shape of two interface S1 with S2 is identical with pin arrangement, and charging pin is identical with the definition of ground pin.But other pin definitions of two interface S1 with S2 are different, an interface S1 is used for USB data transmission, and another interface S2 is used for audio, video data transmission (connection display device).Therefore, two interface S1 with S2 with the charging of identical cable or can transmit data.
In sum, the charging system of this mobile device 10 can charge the battery respectively by first interface S1 or the independent external power supply of the second interface S2, and can be also battery charging by an interface, another interface only carries out transfer of data.And first interface S1 and the second interface S2 lays respectively at the end of two different directions of mobile device 10, thus making user when charging use mobile device 10, the position of charging wire can be adjusted, thus facilitate hand-held.
When reality uses the charging of USB or MHL data wire, USB or MHL interface can not be greater than 500mA to the charging current of mobile device, therefore can be longer than the time of charging with charger by the time of USB or MHL data wire charging, and use mobile device 10 when charging, be easy to occur that the power consumption electric current of mobile device 10 is greater than the situation of charging current.
By the mobile device 10 of the embodiment of the present invention, below can realizing simultaneously:
(1) charging current of USB data line is less than 500mA, and therefore, when USB interface works, MHL interface can insert charger, large current charge while realizing USB transmission;
(2) charging current of MHL data wire is less than 500mA, and when MHL interface works, USB interface can insert charger, large current charge while realizing MHL transmission;
(3) USB interface and MHL interface can work simultaneously, and such as, mobile phone reads the audio, video data of USB flash disk, is played to large-sized monitor by MHL interface simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (14)
1. a charging system for mobile device, is characterized in that, comprising: support the charging first interface multiplexing with transfer of data and the second interface and the charging chip being connected battery;
When one of them in described first interface and described second interface is by charger or the input of data wire external power supply, one of external power supply input disconnects with described charging chip conducting, another and described charging chip;
When described first interface and the equal external power supply of described second interface input, described first interface and described second interface select a conducting.
2. charging system according to claim 1, is characterized in that, when described first interface and the equal external power supply of described second interface input, described first interface and described second interface select a conducting, specifically comprise:
When described first interface and described second interface are respectively by charger and the input of data wire external power supply, one of them and the described charging chip conducting that are inputted by charger external power supply, another and the described charging chip that are inputted by data wire external power supply are disconnected.
3. charging system according to claim 1, is characterized in that, when the equal external power supply of described second interface of described first interface and institute inputs, described first interface and described second interface select a conducting, specifically comprise:
When described first interface and described second interface are all by charger or the input of data wire external power supply, according to the sequencing of external power supply and described charging chip conducting, keep conducting by the interface of the conducting that takes the lead in and described charging chip, interface and the described charging chip of rear conducting remain open.
4. charging system according to claim 1, is characterized in that, also comprises: equipment Inspection module;
Described equipment Inspection module detects the power input status of first interface and the second interface and controls conducting and the disconnection of described first interface and described second interface and described charging chip.
5. charging system according to claim 4, it is characterized in that, described first interface and described second interface all by interface bus and described equipment Inspection module direct-connected, further, described equipment Inspection module is respectively by corresponding to the first switches set of described first interface and being connected to described charging chip corresponding to the second switch group of described second interface and utilizing described first switches set and described second switch group to control conducting and the disconnection of described first interface and described second interface and described charging chip respectively.
6. charging system according to claim 5, is characterized in that, described first switches set and the interlocking of described second switch group.
7. charging system according to claim 6, it is characterized in that, be in series with reverser in the control line of the first switches set and described second switch group described in described equipment Inspection model calling, to realize the described interlocking between described first switches set and described second switch group.
8. charging system according to claim 7, is characterized in that, described first switches set comprises two the first switches, and described second switch group comprises two second switches,
Two described first switches and two described second switches interlock in couples.
9. charging system according to claim 4, is characterized in that, is all connected with overvoltage protection chip between described first interface and described equipment Inspection module and between described second interface and described equipment Inspection module.
10. charging system according to claim 4, is characterized in that, is also connected with control line between described equipment Inspection module and described charging chip.
11. charging systems according to claim 4, is characterized in that, are also connected with application processor between described equipment Inspection module and described charging chip.
12. charging systems according to claim 1, is characterized in that, described first interface is USB interface, described second interface is MHL interface.
13. 1 kinds of mobile devices, is characterized in that, use the charging of mobile devices system according to any one of claim 1-12.
14. mobile devices according to claim 13, is characterized in that, the sidepiece that described first interface is positioned at the end of described mobile device, described second interface is positioned at described mobile device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571240.2A CN104638711A (en) | 2013-11-13 | 2013-11-13 | Mobile equipment and charging system for same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310571240.2A CN104638711A (en) | 2013-11-13 | 2013-11-13 | Mobile equipment and charging system for same |
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| CN104638711A true CN104638711A (en) | 2015-05-20 |
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| CN201310571240.2A Pending CN104638711A (en) | 2013-11-13 | 2013-11-13 | Mobile equipment and charging system for same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490684A (en) * | 2017-09-12 | 2019-03-19 | 三星电子株式会社 | The device and method for detecting the leakage current Production conditions in USB interface |
| WO2019183839A1 (en) * | 2018-03-28 | 2019-10-03 | 董学章 | Multi-function conversion device |
| CN110556891A (en) * | 2019-08-15 | 2019-12-10 | 闻泰科技(无锡)有限公司 | Charging circuit of double-charger |
| WO2022147980A1 (en) * | 2021-01-06 | 2022-07-14 | 闻泰科技(深圳)有限公司 | Interface circuit, smart device, and mobile phone |
-
2013
- 2013-11-13 CN CN201310571240.2A patent/CN104638711A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490684A (en) * | 2017-09-12 | 2019-03-19 | 三星电子株式会社 | The device and method for detecting the leakage current Production conditions in USB interface |
| CN109490684B (en) * | 2017-09-12 | 2022-08-23 | 三星电子株式会社 | Apparatus and method for detecting leakage current generation condition in USB interface |
| US11573275B2 (en) | 2017-09-12 | 2023-02-07 | Samsung Electronics Co., Ltd. | Device and method of detecting leakage current generation condition in USB interface |
| WO2019183839A1 (en) * | 2018-03-28 | 2019-10-03 | 董学章 | Multi-function conversion device |
| CN111903015A (en) * | 2018-03-28 | 2020-11-06 | 江苏树实科技有限公司 | Multifunctional conversion device |
| CN110556891A (en) * | 2019-08-15 | 2019-12-10 | 闻泰科技(无锡)有限公司 | Charging circuit of double-charger |
| CN110556891B (en) * | 2019-08-15 | 2024-04-02 | 闻泰科技(无锡)有限公司 | Charging circuit of double chargers |
| WO2022147980A1 (en) * | 2021-01-06 | 2022-07-14 | 闻泰科技(深圳)有限公司 | Interface circuit, smart device, and mobile phone |
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Effective date of abandoning: 20180907 |