CN1241091C - Method and apparatus for reducing the number of slots used to external connection - Google Patents
Method and apparatus for reducing the number of slots used to external connection Download PDFInfo
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- CN1241091C CN1241091C CN 02149012 CN02149012A CN1241091C CN 1241091 C CN1241091 C CN 1241091C CN 02149012 CN02149012 CN 02149012 CN 02149012 A CN02149012 A CN 02149012A CN 1241091 C CN1241091 C CN 1241091C
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Abstract
The present invention relates to a method and a device for reducing the number of slots used for external connection, which can be applied to an electronic information device. The electronic information device at least comprises an interfaces slot device which has more than two purposes, and the interfaces slot device not only can be used as the input terminal of a transmission line of a peripheral device, but also can be used as the input terminal of a conducting wire of an additional power supply. A plug on the input terminal of the additional power supply sets a pin position on the plug as a signal detecting pin, when the plug is connected with an interface slot, a connected device can be informed that users use the additional power supply to supply power. Simultaneously, an internal circuit of the connected device is used for partitioning the additional power supply with a self internal power supply of the connected device. The interface slot can also be connected with a transmission line of a computer to input a power supply provided by the computer for achieving the aim of multiple purposes of one slot so as to reduce the number of slots connected externally of the device.
Description
Technical field
The present invention relates to a kind of interface slot function extended technology, relate in particular to a kind of method and apparatus that utilizes the internal circuit design mode the employed interface slot of distinct device to be merged into single slot.
Background technology
Maturation along with computing machine and electronics technology technology, impel as digital camera, PDA(Personal Digital Assistant), digital camera, electronic message unit such as mobile computer and e-dictionary develops rapidly and day by day popularizes, just because of this, each tame product manufacturer all drops into considerable manpower, material resources are in the research and development and improvement of product, wish to release the specification pattern that accords with the demands of the market, in the selling market path that dog-eat-dog and trend change all the time, can obtain leading superiority, what existing market demand trend and each tame manufacturer expended that maximum times carry out R﹠D work is exactly whether product function can download data to expand product function with the computer interconnection online, or the product recorded contents is sent to computer hardware carries out the document that the data content editor beautifies and handle, so, for reaching this market comsupton demand, the new product of releasing all designs the interface slot that meets universal serial bus specification and carries out data transmission use when online for the user, except that market trend for the requirement on the product software and hardware function, the key element whether another decision product can stimulate the user to consume wish is the portability of product, promptly whether be convenient to the user and go out to carry use, and do not cause any burden of carrying, therefore the product miniaturization also is the project that manufacturer focused on, constantly how research and development are dwindled product internal mechanical structure and are reduced integrated circuit quantity, but also can under the situation that does not influence the product original function, improve the additional function of product.The present interface slot that product added on the market, the annexation of itself and equipment is man-to-man pattern, and the single face slot only can provide single equipment to connect use, cause product designer under prerequisite with raising product range of application, have to strengthen the volume of product, to increase the quantity of connection device, its difficulty is arranged on the product miniaturization Design, as appending a direct current breakout box (DC Adaptor) slot, then the electronic circuit of product inside need append part, the space of machine plate also need be strengthened, and causes cost of products to improve.In addition, in the electronic message unit product, usually each product all has part to be universal standard specification (Compatible specs), part then is special-purpose specification (Unique specs), as each labels such as digital camera, PDA(Personal Digital Assistant), digital camera, mobile computers special-purpose breakout box itself is arranged all, damage as breakout box, the user must arrive this label brand shop can buy the breakout box of same specification, for quite inconvenience of user.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, fundamental purpose of the present invention is to provide a kind of method and apparatus that equipment externally connects used slot quantity that reduces, it has the electronic information aid that interface slot can be connected with miscellaneous equipment applicable to one, digital camera for example, with so that the volume of digital camera is littler, saves manufacturing cost and be convenient to carry.
Another object of the present invention is to provide a kind of reduced equipment of digital camera that is applicable to externally to connect the method and apparatus of used slot quantity, make USB (universal serial bus) (the Universal Serial Bus on the digital camera; BUS) slot also can be used as the use of direct current adapter plug slot, because of USB has plug and play (Plug and Play), can support the dissimilar product of many moneys to use with various computing machine combination, thereby exempt the inconvenience that direct current breakout box that the user can only be confined to use a certain manufacturer to provide is caused.
For achieving the above object, the invention provides a kind of method that equipment externally connects used slot quantity that reduces.This method comprises the following practice: (1) when inserting without any equipment in the interface slot, then by the appended battery of equipment itself to device provisioning electric power; (2) when interface slot is inserted other device attachment plug, judge then whether this device is the direct current breakout box; (4) if not the direct current adapter device represents that then this plug is the plug of the data line of main frame, carry out data transmission work with equipment, this moment cut off the powered battery path, and by main frame to power devices; (5) if this plug is the direct current adapter plug, then replace battery to power devices by it, and transmitting a signal to bus controller by the input pin, annunciator is just using the direct current breakout box to power, and need not transmit automatic cut-offing instruction and enter battery saving mode to equipment.
In the method for the invention, the user connects transfer wire that various external devices can utilize the USB specification and carries out data transmission work.Method of the present invention is to utilize the mode of circuit design that a plurality of different external connection slots are integrated into the single face slot.Equipment externally connects the USB slot that used slot can be Mini Type B formula.In the method for the invention, judge whether tipping is in addition put is power supply supply transmitting device, and wherein this power supply supply transmitting device can be the direct current breakout box.And, judge whether tipping is in addition put is that the determination methods of power supply supply transmitting device is that a pin position with this external device plug inside is decided to be the detection pin, and when plug was connected with slot, this pin position was just transmitted a signal to device interior supply equipment and judged.Wherein said plug can be a standard USB Mini Type B specification plug.The signal of sending in the inventive method informs that controller is meant the USB controller, and described battery saving mode is meant carries out a function of cutting off the electricity supply automatically to equipment; Described battery is meant the battery of device interior.
Of the present inventionly reduce the device that equipment externally connects used slot quantity and comprise the following units: (a 1) equipment externally connects slot, can carry out the additional equipment that meets the USB specification of data transmission work with equipment or to the direct current breakout box of supply of equipment electric power in order to connect; (2) battery power supply units, supply electric power uses to the equipment that the interface slot device is depended on; (3) powered battery interrupt locations when interface slot connects miscellaneous equipment such as computing machine, cut off the battery power path and change by institute's connection device and provide electric power to use to the equipment that slot depended on; (4) pressure units can reduce the supply voltage of slot institute coupling arrangement with protection equipment itself; (5) overvoltage protection unit, in order to detect the pressure unit output voltage, so voltage exceeds the rated voltage that chip apparatus can bear in the equipment, just this voltage and chip apparatus is isolated, and prevents that the chip apparatus damage from causing the equipment running to stop; (6) switch elements for user's switching device operating mode, are opened, and expression makes equipment carry out functional operation, close, and then expression makes the running of equipment hold function; (7) DC to DC converter (DC/DCCONVERTER), the dc voltage conversion that the holding circuit unit is exported is a plurality of operating voltage outputs that different chip apparatus use that are fit to respectively; (8) breakout boxs insert informs the unit, by one on direct current adapter plug detection pin position, has the direct current breakout box to insert in order to inform it; (9) controllers, inform that with the breakout box insertion unit electrically connects, and comply with this current potential of informing signal that the unit transmits just, judge whether the direct current breakout box inserts in the slot or do not insert the interface of any external equipment in the slot, and signal deciding is carried out to equipment or the cancellation instruction of cutting off the electricity supply automatically according to this; (10) power switching unit when not inserting the interface of any external equipment in slot, are carried out the instruction of cutting off the electricity supply automatically that the USB controller is sent, with the power supply path cut-out of equipment, with the battery supply in the saving equipment.
According to the externally device of the used slot quantity of connection of equipment that reduces of the present invention, wherein said equipment externally connects slot can be the USB slot of Mini Type B formula; Described apparatus body and other external device in addition thereof can be powered, data reads transmission work each other, and this transmission work can be read and data transmission work by the usb data transmission line; Described powered battery interrupt location can be made of transistor component and a resistor voltage divider circuit; Described pressure unit can be made of diode, and the operating voltage of utilizing diode itself is to offset input voltage value to reach the step-down purpose; Described overvoltage protection unit can work under the safe voltage for making equipment, can carry out the work of second layer monitoring, in case input voltage is excessive, and causes equipment burnout; Described switch element can be made up of switch module, resistance and transistor; Described breakout box can be the direct current breakout box; Described adapter plug can be USB Mini Type B plug, and to be pin 1 be+5V to the distribution scenario of pin position in it, and pin 2, pin 3 be empty pin, and pin 4 is+and 5V and pin 5 are ground connection, and wherein its pin 1,4 is connected together, pin 4 is made as the detection pin; Described controller can be the USB controller; Described dump control module can be made up of resistance, transistor and electric capacity.The above-mentioned equipment that reduces externally connects used slot count metering method and device, utilize a low-cost circuit design mode, making single equipment externally connect slot can use jointly for USB and breakout box interface, can make the product appearance slip-stick artist that more elastic space is arranged when the design outward appearance, also can make manufacturer not need to do in addition a breakout box dedicated slot and circuit, can reduce production costs, in addition, the volume of equipment own also thereby dwindle increases the convenience that the user uses with oneself.
Description of drawings
Fig. 1 represents adapter plug and inner pin position title distribution scenario and the line segment inner lead using method that the present invention is used;
Fig. 2 represents basic structure calcspar of the present invention;
The schematic circuit diagram of the embodiment of Fig. 3 presentation graphs 2 wherein shows the annexation that equipment externally connects the interior contained electronic package of method and apparatus of used slot quantity that reduces of the present invention;
Reduced equipment in Fig. 4 presentation graphs 2 externally connects an operation workflow figure of the method and apparatus of used slot quantity, wherein display device externally connects the different disposal flow process of slot when having equipment to insert and not have the equipment insertion, and sends the step that signal is informed controller when learning that breakout box inserts.
Symbol description among the figure
1 adapter plug form
2 breakout box body figure
3 breakout box transmission yarn inner lead connection layout
4 power supply supply path unit
41 battery power supply units, 42 powered battery interrupt locations
43 pressure units, 44 overvoltage protection unit
5 external device detecting units
51 externally connect the insertion of slot 52 breakout boxs informs the unit
53 controllers
6 equipment mode control modules
61 switch elements, 62 DC/DC transducers
63 dump control modules
D1, D2, D3 diode
Q1, Q2, Q3, Q4 transistor
A, B, C, D, F, G, H, J potential point
R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 resistance
The SW switch
ADAPTER_DET breakout box detectable signal
USB_PWR USB supplies electric power
The PWR_OFF signal of cutting off the electricity supply automatically
Embodiment
Following conjunction with figs., and describe the method and apparatus that equipment externally connects used slot quantity that reduces of the present invention in detail with embodiment.
In the present embodiment, the external method and apparatus that connects used slot quantity of equipment that reduces of the present invention is applied on the digital camera, externally connect the used slot count of machine in order to reduce digital camera, to allow the digital camera volume be reduced, increase the convenience on using, wherein, digital camera is to utilize the transfer wire of USB specification to connect various external devices to carry out data transmission work, and its externally to connect used slot be the USB slot of Mini Type B, and this external device is the device of power supply initiatively.Be noted that, the method and apparatus that reduces the used slot quantity of the external connection of equipment of the present invention does not limit and only is applied on the digital camera, in the broadest sense, the present invention can be applicable to any with externally connecting on the electronic message unit of slot with extended function, in order to the volume and the circuit component usage quantity of minimizing electronic message unit, and method of the present invention is to utilize the mode of circuit design that a plurality of different external connection slots are integrated into the single face slot.
Fig. 1 shows used breakout box and the plug form thereof of method and apparatus that equipment externally connects used slot quantity that reduce of the present invention, inner pin position title distribution scenario and line segment inner lead using method, as shown in the figure, the pin position of this adapter plug 1 is respectively: pin 1 is+5V, pin 2 and pin 3 are sky pin (NC), pin 4 is+5V and pin 5 ground connection (GND), this adapter plug is connected with breakout box body 2 through transmission yarn, transmission yarn back panel wiring 3 links together pin 1 and pin 4 and is+5V, add pin 5 and be GND, so only use 3 pins in the adapter plug.
The externally method and apparatus basic structure of the used slot quantity of connection of equipment that reduces of the present invention as shown in Figure 2, this device is made up of power supply supply path unit 4, external device detecting unit 5 and equipment mode control module 6; Now that the cell descriptions that each unit constituted is as follows: power supply supply path unit 4 comprises battery power supply unit 41, powered battery interrupt location 42, pressure unit 43, overvoltage protection unit 44; 5 of external device detecting units comprise that equipment externally connects slot 51, breakout box and inserts switch element 61, DC/DC transducer 62 and the dump control module 63 of informing that unit 52, controller 53 and equipment mode control module 6 are contained.
Battery power supply unit 41 does not insert any interface plug and switch element 61 (this switch element 61 is by on-off element for the equipment of digital camera externally connects slot 51; resistance and transistor are formed) when being open mode; via DC/DC transducer 62 its 3V electric power of supplying is exported all chip apparatus uses for digital camera inside of a plurality of different magnitudes of voltage respectively after conversion process; when external connection slot 51 one of the insertion of digital camera are connected to the USB plug of computing machine; be that digital camera just carries out data transmission work with computing machine; this moment, switch element 61 switched to opening in advance by the user; computing machine can be exported a 5V electric power and be sent to digital camera inside through USB plug; (this pressure unit 43 is made of diode through pressure unit 43 after the external connection slot 51 of digital camera receives; utilizing the operating voltage of diode itself to offset input voltage value to reach the purpose of step-down) 5V voltage that computing machine is imported downgraded; and the voltage after will downgrading detects through voltage protection unit 44; after determining that this voltage does not surpass switch element 61 and 62 ceiling voltages that can load of DC/DC transducer; promptly by switch element 61 and 62 outputs of DC/DC transducer; inside chip device for digital camera uses; wherein; this overvoltage protection unit 44 is operated under the safe voltage for making digital camera; carry out the operation of second layer monitoring; excessive to prevent voltage; though the ceiling voltage that still can bear than digital camera part after pressure unit 43 downgrades is high, and causes digital camera to burn.Pressure unit 43 also can send signal and informs that powered battery interrupt location 42 cuts off battery power paths (this powered battery interrupt location 42 is made of transistor unit and resistor voltage divider circuit) downgrading when computing machine is supplied voltage, be about to battery-powered unit 41, digital camera power supply source switch to digital camera external connection slot 51 external computing machine power source is provided, to save battery electric power, if the external connection slot 51 of digital camera external device interface when changing breakout box (shown in Figure 1) interface into by computing machine, the power supply of digital camera by breakout box but not battery provide, the supply path of breakout box and pattern are identical with computing machine, repeat no more, uniquely different be, when the external connection slot 51 of digital camera is connected with breakout box, the 4th pin of adapter plug inside promptly can send a signal to breakout box insertion and inform unit 52, when the breakout box insertion informs that unit 52 judges that being defined as breakout box inserts, just send a high potential signal to controller 53 (its preferred implementation is the USB controller), informing that its digital camera is just using breakout box to power, need not assign automatic cut-out numeral camera power supply to dump control module 63 and enter the instruction of battery saving mode (this dump control module 63 is by resistance for saving battery electric power, transistor and electric capacity are formed); Otherwise, if breakout box does not insert the external connection slot 51 of digital camera, be that pin does not receive the 5V voltage that breakout box provides, so inserting, breakout box informs that signal that unit 52 is received is one and levels off to the 0V low-potential signal, via after handle judging, it transmits a low-potential signal again informs that controller 53 digital cameras need have the function of cutting off the electricity supply automatically to make it make dump control module 63 via switch element the operating mode of digital camera be switched to and close to save battery supply.
The reduced equipment of Fig. 3 presentation graphs 2 is the schematic circuit diagram of an embodiment of the device of the used slot quantity of connection externally, show that wherein this can reduce the annexation that equipment externally connects the interior contained electronic package of method and apparatus of used slot quantity, as shown in the figure, when 1 of digital camera externally connects slot 51 and does not insert any interface, 3V battery supplied in the battery-powered unit 41 of its inner electric power, because of nothing adds the electric power input, so the transistorized gateway of Q1 is a conducting state, cell voltage will flow to the D potential point from the A potential point of power supply supply path unit 4, the F potential point magnitude of voltage that the D potential point flow to equipment mode control module 6 is 3V, the switch module SW that presses switch element 61 as the user is to allow the conducting of voltage transfer path, simultaneously transistor Q2 in the switch element 61 and Q3 also form guiding path and make that no current passes through on the residing path of J potential point, and make that the J potential point is an electronegative potential, and make DC/DC transducer 62 control pin conductings and provide three kinds of voltages (1.8V, 3.3V and 5V) for all chip apparatus uses.
When inserting plug from the computing machine delivery end to the external connection slot 51 of digital camera; the computing machine plug transmits the D1 diode of 5V voltage to pressure unit 43 from computer terminal; from the D1 diode to the C potential point; voltage is 4.4V; the R3 of powered battery interrupt location 42; R5 is a divider resistance; the C potential point of pressure unit 43 to the B potential point voltage of powered battery interrupt location 42 is reduced to 3.6V; greater than the 3V voltage that battery provided; so promptly forming, the Q1 of powered battery interrupt location 42 opens circuit; cell voltage i.e. no longer supply; the 4.4V voltage of C potential point is the D2 of 1.2V through pressure unit 43 internal drops; it is 3.2V that the D3 diode downgrades its voltage; therefore voltage does not exceed the voltage limit that switch element can bear; so overvoltage protection unit 44 also is 3.2V for conducting state makes the pressure drop of D potential point; the switch module SW that presses switch element 61 as the user is to allow the conducting of voltage transfer path; 3.2V voltage can reach F potential point in equipment mode control module 6 scopes from the D potential point; transistor Q2 in the switch element 61 and Q3 also form guiding path and make that no current passes through on the residing path of J potential point at the same time; and make that the J potential point is an electronegative potential; and make DC/DC transducer 62 control pin conductings and provide three kinds of voltages (1.8V, 3.3V and 5V) for all chip apparatus uses.
When if the external connection slot 51 of digital camera is inserted the joint of breakout box, breakout box can be supplied 5V voltage via slot and give digital camera, its voltage institute is through the path, decompression mode and powered battery path interrupt method are all identical with aforementioned calculation machine interface, do not given unnecessary details, at this operation situation of external device detecting unit 5 internal elements after breakout box is inserted slot only is described, having in the adapter plug only has 3 pins to use in practical situation, pin 1 and pin 4 link together and are+5V, pin 2, pin 3 is empty pin, pin 4 also detects pin for breakout box, pin 5 is a grounding leg, when the user inserts slot with converter, the 5V voltage that pin 4 is exported promptly is delivered to the H potential point that unit 52 is informed in the breakout box insertion from the G potential point of detecting unit 5, R9, R10 is respectively divider resistance, the voltage of H potential point is 3.3V, so inserting, breakout box informs that unit 52 promptly transmits a high potential signal and gives controller 53, make it know that digital camera is just using the breakout box power supply and it does not carried out the instruction of cutting off the electricity supply automatically, if the external connection slot 51 of digital camera is not inserted breakout box, then breakout box inserts and informs that the H potential point current potential of unit 52 is 0, and, if digital camera had not been carried out any function action in a period of time, it will send a low-potential signal to controller 53, inform that digital camera does not use the breakout box power supply, need give its instruction of outage automatically, close the power supply of digital camera via dump control module 63, to save battery supply.
Reduced equipment in Fig. 4 presentation graphs 2 is the operation workflow figure of an embodiment of the method and apparatus of the used slot quantity of connection externally, wherein show externally to connect the different disposal flow process of slot 51 when having equipment to insert and not have the equipment insertion, and when learning that breakout box inserts, send the step that signal is informed controller.
As shown in Figure 4, at first, in S1, detect the external connection slot 51 of digital camera and whether insert external device,,, then carry out S5 if do not have if having external device to insert then carries out S2.
In S2, the plug inside that detects external device detect the pin position whether transmission adapter insert signal and give digital camera (this converter is the embodiment of power supply supply transmitting device, its preferred forms is the direct current breakout box), just the pin with this external device plug inside is decided to be the detection pin, when plug is connected with slot, this pin transmits signals to this digital camera inside, judge (plug that this plug is standard USB Mini Type B specification) for this digital camera, if there is transmission adapter to insert signal, then carry out S3, if do not have, then carry out S6.
In S3, import the 5V power supplys to digital camera inside by breakout box via the external connection slot 51 of digital camera, carry out S4 immediately.
In S4, send breakout box and insert signal to controller, inform that it need not digital camera is sent the instruction of cutting off the electricity supply automatically, just, do not need this moment digital camera is carried out the battery saving mode operation of cutting off the electricity supply automatically, carry out S7 immediately, wherein this controller is meant the USB controller.
In S5, the power supply source of digital camera is transformed to the 3V voltage of being supplied by battery supply, carry out S7 immediately, wherein, this battery is meant the battery of digital camera inside, and not having external equipment via digital camera inside at digital camera directly provides stored electric power to digital camera under can be to the situation of its power supply.
In S6, the power supply of digital camera source is transformed to 5V voltage by the computer power supply supply, carry out S7 immediately.
In S7, will the electric power of digital camera supply after internal circuit is handled, be divided into various different voltages output and use for the inside chip device.
The above is preferred embodiment of the present invention, is not in order to limit the scope of essence technology contents of the present invention.Essence technology contents of the present invention broadly is defined in claims of the present invention, any technology entity or method that other people are finished, if defined identical with claims of the present invention, or be the change of same equivalence, all will be regarded as being covered by in this claim.
Claims (20)
1, a kind of externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that, it is applicable in the electronic message unit, this electronic message unit comprises an interface slot device at least, connect various external devices to carry out data transmission work for the user, this external device power supply initiatively wherein, this method may further comprise the steps:
S1, whether judgment device externally connects used slot and is connected with external device, then carries out S2 immediately as if being connected with external device, then carries out S5 if nothing is connected with external device;
S2 judges that whether this external device is power supply supply transmitting device, if power supply supply transmitting device carries out S3 immediately, if not, then carries out S6;
S3, by power supply supply transmitting device to supply of equipment electric power after, input equipment inside is carried out S4 immediately;
S4 sends the controller that signal is informed this electronic message unit inside, and equipment is just powered by power supply supply transmitting device, after not needing equipment carried out the action of battery saving mode, carries out S7 immediately;
S5 when slot is not connected with arbitrary external device, after then by the battery of this electronic message unit inside equipment being powered, carries out S7;
S6 after by the external device of this non-power supply supply transmitting device equipment being powered, carries out S7; And
S7 will after the internal circuit of this electronic message unit is handled, be divided into the inside chip device use of various different voltages output for this electronic message unit to the electric power of supply of equipment.
2. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that connecting various external devices for the user is to utilize the transfer wire of USB specification to carry out data transmission work.
3. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that this method is meant that the mode of utilizing circuit design is integrated into the single face slot with a plurality of different external connection slots.
4. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that equipment externally connects the USB slot that used slot is a Mini Type B formula.
5. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that, judge wherein whether tipping is in addition put is power supply supply transmitting device, and this power supply supply transmitting device is for flow breakout box always.
6. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that, judge wherein whether tipping is in addition put is power supply supply transmitting device, the method of its judgement is that a pin position with this external device plug inside is decided to be the detection pin, when plug was connected with slot, this pin position was just transmitted a signal to device interior supply equipment and is judged.
7. as claim 6 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that described plug is a standard USB Mini Type B specification plug.
8. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that the described signal of sending informs that controller is meant the USB controller.
9. as claim 1 a described externally method of the used slot quantity of connection of equipment that reduces, it is characterized in that described battery saving mode is meant carries out a function of cutting off the electricity supply automatically to equipment.
10. one kind can be reduced the interface slot device that equipment externally connects used slot quantity, it is characterized in that, it is applicable in the electronic message unit, this electronic message unit comprises an interface slot device that electrically connects with this electronic message unit at least, connect various external devices to carry out data transmission work for the user, this external device power supply initiatively wherein, this interface slot device comprises following member:
A battery power supply unit when equipment externally connects slot and is not connected with any external device, is directly powered to equipment with its stored electric weight;
An equipment externally connects slot, in order to supply equipment body and other external device in addition thereof, powers each other, data reads transmission work;
A powered battery interrupt location when the external device that is connected on the external connection slot is powered to apparatus body, cuts off the path of battery to power devices, provides electric power and change by external device;
A pressure unit, the voltage that external device is imported is downgraded, in case the part of too high voltage damage device interior;
An overvoltage protection unit, the voltage that pressure unit is downgraded back output is examined again, when if the voltage after downgrading still is higher than the ceiling voltage that other unit in the equipment can bear, just the path with this voltage is cut off, if can not cause damage to the unit, then, supply power to device interior to make it with the path conducting of this voltage;
A switch element switches the operating mode of equipment for the user;
A DC/DC transducer, the voltage that power source provided handled conversion after, the chip apparatus of exporting in the voltage supply equipment of a plurality of different sizes use;
A breakout box inserts informs the unit, externally is connected slot with equipment and electrically connects, and when adapter plug is connected with slot, receives the signal that the detection pin position on the adapter plug is sent, and is sent to controller after the processing and judges for it;
A controller is informed the signal that the unit is imported according to receiving from the breakout box insertion, judges whether to need equipment is carried out the function of battery saving mode;
A dump control module, itself and controller electrically connect and via the instruction of switch element implementation controller to its opening device battery saving mode function of assigning.
11., it is characterized in that described equipment externally connects the USB slot that slot is a Mini Type B formula as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
12. as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces, it is characterized in that, described apparatus body and other external device in addition thereof, power each other, data reads transmission work, this transmission work is read and data transmission work by the usb data transmission line.
13., it is characterized in that described powered battery interrupt location is made of transistor component and a resistor voltage divider circuit as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
14. as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces, it is characterized in that, described pressure unit is made of diode, and the operating voltage of utilizing diode itself is to offset input voltage value to reach the step-down purpose.
15. as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces; it is characterized in that; described overvoltage protection unit can work under the safe voltage for making equipment; carry out the work of second layer monitoring; in case input voltage is excessive, and cause equipment burnout.
16., it is characterized in that described switch element is made up of switch module, resistance and transistor as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
17., it is characterized in that described breakout box is the direct current breakout box as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
18. as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces, it is characterized in that, described adapter plug is a USB Mini Type B plug, distribution scenario of pin position is that pin 1 is+5V in it, pin 2, pin 3 are empty pin, pin 4 is+5V and pin 5 are ground connection, and wherein its pin 1,4 is connected together, pin 4 is made as the detection pin.
19., it is characterized in that described controller is the USB controller as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
20., it is characterized in that described dump control module is made up of resistance, transistor and electric capacity as claim 10 a described externally interface slot device of the used slot quantity of connection of equipment that reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149012 CN1241091C (en) | 2002-11-18 | 2002-11-18 | Method and apparatus for reducing the number of slots used to external connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149012 CN1241091C (en) | 2002-11-18 | 2002-11-18 | Method and apparatus for reducing the number of slots used to external connection |
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| CN1501214A CN1501214A (en) | 2004-06-02 |
| CN1241091C true CN1241091C (en) | 2006-02-08 |
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| CN 02149012 Expired - Fee Related CN1241091C (en) | 2002-11-18 | 2002-11-18 | Method and apparatus for reducing the number of slots used to external connection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101391758B1 (en) * | 2007-01-11 | 2014-05-07 | 삼성전자 주식회사 | Battery module and computer system and power supply method thereof |
| CN103885570B (en) * | 2012-11-15 | 2016-08-24 | 名硕电脑(苏州)有限公司 | Multi-functional input system |
| CN109144924A (en) * | 2018-07-17 | 2019-01-04 | 合肥联宝信息技术有限公司 | A kind of method and apparatus keeping circumscribed USB interface equipment use state |
-
2002
- 2002-11-18 CN CN 02149012 patent/CN1241091C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1501214A (en) | 2004-06-02 |
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