CN1425967A

CN1425967A - Radio auxiliary insert card with power regulation circuit

Info

Publication number: CN1425967A
Application number: CN 01143630
Authority: CN
Inventors: 龚绍祖
Original assignee: Compal Electronics Inc
Current assignee: Compal Electronics Inc
Priority date: 2001-12-14
Filing date: 2001-12-14
Publication date: 2003-06-25

Abstract

The radio auxiliary insert card capable of being inserted to PDA includes one interface connector for connecting to PDA; one electric regulating circuit connected to the interference connector to store the first DC current from the interface connector; and one radio transmission circuit to convert the electronic signal from the PDA into radio signal, emit the radio signal, convert the received radio signal into electronic signal and transmit the electronic signal to the PDA via the interface connector. The electric regulation circuit is connected to the radio transmission circuit and when the radio transmission circuit emits radio signal the electric regulation circuit outputs one second DC current to the radio transmission circuit.

Description

Radio auxiliary insert card with power regulation circuit

Technical field:

The present invention relates to a kind of radio auxiliary insert card that is used for personal digital aid (PDA), refer to a kind of radio auxiliary insert card of suitably regulating electric power supply with power regulation circuit especially.

Background technology

In the hyundai electronics science and technology of fast development, even possess the computer of powerful information processing capability, its volume also can effectively dwindle, become portable equipment, the user can be carried, by this volume light and handy computer arrangement personal information, storage practical knowledge, enjoy information life easily whenever and wherever possible.Similarly being present so-called personal digital aid (PDA) (PDA, Personal Digital Assistant), is exactly a kind of volume portable computer small and exquisite, easy to carry.

In order to expand the function that strengthens personal digital aid (PDA), all be provided with expansion slot on the personal digital aid (PDA), can insert the special auxiliary insert card of function with user's needs, extra function is provided.Similarly be present general visible flash type storage card (CF card, Compact-Flash Card), be exactly a kind of with flash memory form, can be with the auxiliary insert card of non-volatile mode storage data; And the information dealer has also worked out the standard specification of basic flash type storage card and relevant expansion slot.Wherein, in order to support the electricity needs of flash type storage card, the expansion slot of personal digital aid (PDA) is also wanted suitable electric current can be provided, and drives the interlock circuit in the flash type storage card, makes its performance function.

Along with personal digital aid (PDA) is universal day by day, each information manufacturer also endeavours to research and develop the auxiliary insert card of various difference in functionalitys, expands various function of personal digital aid (PDA).If various auxiliary insert cards can both be continued to use the standard expansion slot of flash type storage card, just can increase the function of personal digital aid (PDA) in convenient mode with low cost again.Yet,, make that the function of auxiliary insert card also can be further limited because the electric power that the expansion slot under the flash type memory card standards specification can provide is limited.With regard to actual conditions, at present the highest electric current that only can supply 550 milliamperes (milliampere is the per mille ampere) of expansion slot that cooperates general flash type storage card, if auxiliary insert card needs bigger electric current supply ability normal operation, the specification of flash type storage card expansion slot just can't be supported such auxiliary insert card; And personal digital aid (PDA) also just can't increase its function with such auxiliary insert card, causes the function of personal digital aid (PDA) further to expand.For instance, be used for the wireless radio transmission circuit launching, receive radio signals in radio communication, the highest immediate current demand is approximately wanted 2000 milliamperes.If want radiofication transmission circuit in auxiliary insert card, will face the under-supply awkward situation of expansion slot electric current, also make the function of personal digital aid (PDA) can't extend to the field of radio communication with the expansion slot of flash type storage card.

Summary of the invention

Therefore, fundamental purpose of the present invention is to provide a kind of radio auxiliary insert card with power regulation circuit, can not only expand the radio communication function of personal digital aid (PDA), can also store the electric current of expansion slot supply and disengage the electric energy of storage in good time, come the bigger momentary current demand of provisioning wireless electricity auxiliary insert card, to overcome the shortcoming of expansion slot supply power shortage.

According to one aspect of the present invention, a kind of extrapolating is provided, and (it includes for personaldigital assistant, radio auxiliary insert card PDA): a square casing is provided with an opening on it in a personal digital aid (PDA); One interface connector is located in the upper end open of this square casing, is used for connecting this personal digital aid (PDA); One power regulation circuit is electrically connected on this interface connector, is used for storing the electric power of one first DC current that this interface connector transmits; An and wireless radio transmission circuit, be located in this square casing and be electrically connected on this interface connector, be used for converting this personal digital aid (PDA) to radio signal via the electronic signal that this interface connector transmitted and launch, and the radio signal that receives is converted to electronic signal and passes to this personal digital aid (PDA) via this interface connector; Wherein this power regulation circuit is to be electrically connected on this wireless radio transmission circuit, and when this wireless radio transmission circuit transmitted radio signal, this power regulation circuit can be exported one second DC current to this wireless radio transmission circuit.

According to another aspect of the present invention, the auxiliary insert card of a kind of extrapolating in a personal digital aid (PDA) (PDA) is provided, it includes: an interface connector is used for connecting this personal digital aid (PDA) in pluggable mode; One power regulation circuit is electrically connected on this interface connector, is used for storing the electric power of one first DC current that this interface connector transmits; And a function circuit, be located in this square casing and be electrically connected on this interface connector, be used for controlling the function of this auxiliary insert card, wherein when operating, this function circuit can switch on a high power consumption state and a low power consumption state; Wherein this power regulation circuit is to be electrically connected on this function circuit, and when function circuit operated on high power consumption state, this power regulation circuit can be to this operation output one second DC current; And when this function circuit operated on this low power consumption state, this power regulation circuit can stop to export this second DC current.

Advantage of the present invention can be described below.At first, technology of the present invention can be continued to use the expansion slot of existing flash type storage card, even the undercurrent that existing expansion slot provides is to deal with the high power consumption state of radio auxiliary insert card, radio auxiliary insert card still can be regulated power supply and demand via power regulation circuit among the present invention; The function that the extensive compatibility of this expansion slot allows the user expand personal digital aid (PDA) in mode cheaply, information manufacturer also needn't redesign and make new personal digital aid (PDA).In addition, power regulation circuit among the present invention can replenish electric power voluntarily when the wireless radio transmission circuit operates on the low power consumption state, the user does not need in addition to radio auxiliary insert card charging of the present invention fully or changes battery, can allow user's extended function of bringing of the enjoyment radio auxiliary insert card of the present invention of rate easily and effectively.

Description of drawings

Fig. 1 is the synoptic diagram of personal digital aid (PDA) among the present invention and radio auxiliary insert card configuration.

The functional block diagram of Fig. 2 for disposing among Fig. 1.

Fig. 3 is the synoptic diagram of radio auxiliary insert card electric current demand among Fig. 1.

Fig. 4 A to Fig. 4 C is the function block schematic diagram that radio auxiliary insert card operates down in different conditions among Fig. 1.

Embodiment

Please refer to Fig. 1.Fig. 1 cooperates the synoptic diagram of a personal digital aid (PDA) 10 for radio auxiliary insert card among the present invention 20.Personal digital aid (PDA) 10 is provided with touch-screen 12A and button 12B; But touch-screen 12A display graphics picture allows the user read the literal image data; But user's touch-control this touch-screen 12A and button 12B are with operation personal digital aid (PDA) 10.In order to cooperate the auxiliary insert card of extended function, be provided with in addition on the personal digital aid (PDA) 10 and insert a mouthful 14B; The inboard of inserting mouthful 14B is provided with expansion slot 18B.Outside radio auxiliary insert card 20 among the present invention was overlying on a square casing 21, an end was provided with opening 14A, then is provided with the interface connector 18A corresponding to expansion slot 18B among the opening 14A.As long as radio auxiliary insert card 20 is inserted a mouthful 14B, make interface connector 18A be connected in expansion slot 18B, just radio auxiliary insert card 20 can be connected in personal digital aid (PDA) 10, come to be personal digital aid (PDA) 10 extended functions.

Please continue with reference to figure 2.Fig. 2 is connected in the functional block diagram of personal digital aid (PDA) 10 for radio auxiliary insert card 20.Being provided with treatment circuit 32 in personal digital aid (PDA) 10, being used for the running of master control personal digital assistant device 10, similarly is storage data, executive routine, deal with data or the like; And touch-screen 12A and button 12B all are electrically connected on treatment circuit 32, by touch-screen 12A display graphics, and allow the user be able to handle treatment circuit 32 by touch-screen 12A and button 12B.In addition, also be provided with battery 30 in the personal digital assistant device 10, be used for supplying 10 runnings of personal digital assistant device required electric power.In order to connect auxiliary insert card, in the expansion slot 18B of personal digital assistant device 10, be provided with and be used for the data terminal 26B of transmission electronic data and the power end 34B, the earth terminal 36B that are used for transmitting direct current power.

Radio auxiliary insert card 20 among the present invention can be used to expand the radio communication function of personal digital aid (PDA) 10.For reaching this purpose, be provided with wireless radio transmission circuit 24 in the radio auxiliary insert card 20, be used for launching and receiving radio signals.Corresponding to the data terminal 26B among the expansion slot 18B, power end 34B and earth terminal 36B, also be respectively equipped with data terminal 26A, dc power supply terminal 34A and earth terminal 36A among the interface connector 18A on the radio auxiliary insert card 20.After expansion slot 18B was connected in interface connector 18A,

data terminal

26A, 26B can be electrically connected mutually; Power end 34B can be electrically connected mutually with dc power supply terminal 34A; Earth terminal 36B also can be electrically connected on earth terminal

36B.By data terminal

26A, 26B, treatment circuit 12B is energy and wireless radio transmission circuit 24 exchange electronic signals just.By dc power supply terminal 34A, power end 34B and

earth terminal

36A, 36B, the electric power that battery 30 provides just can transfer in the radio auxiliary insert card 20.The situation of radio auxiliary insert card 20 work can be described below.When the user will carry out radio communication with personal digital assistant device 10, treatment circuit 12B can will electrons transmitted signal 28A be sent to wireless transmission circuit 24 in the radio auxiliary insert card 20 by

data terminal

26A, 26B; And wireless transmission circuit 24 will be tuned as radio signal 28B with electronic signal 28A coding and launches wirelessly.Relatively, when electronic signal 28A will transfer to personal digital aid (PDA) 10, also be by wireless radio transmission module 24 28B that receives radio signals, again its decoding is demodulated into electronic signal 28A, and transfer to treatment circuit 32 by

data terminal

18A, 18B, make personal digital assistant device 10 can receive the information of radio communication.Via 24 emissions of wireless radio transmission circuit on the radio auxiliary insert card 20, reception and processing radio signal, personal digital aid (PDA) 10 just can expand the function of its radio communication.

Please refer to Fig. 3.The synoptic diagram of electric current demand when Fig. 3 is 24 runnings of wireless radio transmission circuit; The transverse axis of Fig. 3 is the time, and the longitudinal axis is the magnitude of current, with the variation situation of display radio transmission circuit 24 electric current demand under different conditions.Wireless radio transmission circuit 24 in the radio auxiliary insert card 20 is main function circuits of carrying out radio communication function, in order to make its operate as normal, essential will be with the suitable electric power of suitable electric current supply.Because transmitted radio signal needs bigger emissive power, when wireless radio transmission circuit 24 was wanted transmitted radio signal, the demand of its electric current (electric power) also increased; Among Fig. 3 period T1, T3, T5 be exactly wireless radio transmission circuit 24 during transmitted radio signal, this moment, wireless radio transmission circuit 24 electric current demand was higher, the magnitude of current of demand is denoted as magnitude of current Ia in Fig. 3.Relatively, when wireless radio transmission circuit 24 not transmitted radio signal but receiving radio signals or the situation of standby under, its electric current demand is lower magnitude of current Ib.Similarly be among Fig. 3 period T2, T4, T6 be exactly wireless radio transmission circuit 24 receive radio signals or the standby situation under the lower period of electric current demand.Yet, as previously mentioned, the expansion slot 18B of corresponding general flash type storage card, its electric current supply limited in one's ability is unable to supply wireless radio transmission circuit 24 higher electric current demand when transmitted radio signal; On behalf of expansion slot 18B, the magnitude of current Ic among Fig. 3 just to be supplied to the rated current amount of wireless radio transmission circuit 24 via power end 34B, dc power supply terminal 34A.As shown in Figure 3, though the magnitude of current Ic that expansion slot 18B can supply can ample supply wireless radio transmission module 24 receiving radio signals or the magnitude of current Ib of (period T2, T4, T6) demand during standby, can't satisfy the magnitude of current Ia of wireless radio transmission module 24 (period T1, T3, T5) demand when transmitted radio signal.In order to solve the problem of this electric current supply and demand, be provided with a power regulation circuit 22 in the radio auxiliary insert card 20 of the present invention in addition.

Please once again with reference to figure 2.Include a current-limiting resistance R, charge storage unit 38 and guiding circuit 40 in the power regulation circuit 22 of the present invention.Current-limiting resistance R is electrically connected between node N1, the N3.In preferred embodiment, charge storage unit 38 is the capacitor C of a big capacitance; The two ends of capacitor C are connected to node N3, N6.Be provided with a p type metal oxide semiconductor transistor M in the guiding circuit 40, its source electrode (source) is electrically connected on the input end that node N4 forms guiding circuit 40; The drain electrode of transistor M (drain) is electrically connected on the output terminal that node N5 forms guiding circuit 40; The grid of transistor M (gate) then is electrically connected on node N7.At last, power regulation circuit is connected in dc power supply terminal 34A in node N1, is connected in wireless radio transmission circuit 24 in node N2; Earth

terminal

36A, 36B, node N6, node N7 then are electrically connected the ground end (ground) of power regulation circuit 22 and wireless radio transmission circuit 24.

Please refer to Fig. 4 A, 4B, 4C.Fig. 4 A, B, C are respectively the synoptic diagram that power regulation circuit 22 operates among the present invention under different situations.Please refer to Fig. 4 A.Before radio auxiliary insert card 20 comes into operation, (for example be that radio auxiliary insert card 20 is when just having inserted personal digital aid (PDA) 10, or before the user will utilize radio auxiliary insert card to begin to carry out radio communication), this moment, the electric energy of charge storage unit 38 storages may be lower, makes that the voltage of node N3 is also lower.After radio auxiliary insert card 20 has just come into operation, the voltage charging that the high voltage that dc power supply terminal 34A provides can be lower to node N3.This moment, personal digital aid (PDA) 20 meetings provide one first DC current I1 via power end 34B and dc power supply terminal 34A to radio auxiliary insert card 20, and are represented as the arrow among Fig. 4 A; And the first DC current I1 can distribute the next capacitor C charging in charge storage unit 38 of electric current I 1a, I1c respectively by node N1, N2, and the electric current I 1d of node N2 shunting then can flow to wireless radio transmission module 24.The electric current I 1a that is flow to node N3 by node N1 can be through the capacitor C charging of current-limiting resistance R in charge storage unit 38; And current-limiting resistance R can limit the magnitude of current size of electric current I 1a, is increased to the voltage of node N1 suddenly and damages capacitor C with the voltage of node N3 at the beginning of preventing to charge.On the other hand, transistor M is because the not quite and not conducting of voltage difference (voltage differenec) between node N4 (source electrode), N7 (grid), but the equivalent diode D that transistor M forms in (just transistor M's drains between source electrode) reverse biased between node N5, N4, can be because voltage conducting of node N5 greater than the voltage of node N3, make that electric current I 1c is able to flow to node N3 via drain electrode, the source electrode of transistor M, electric current I 1c (together with electric current I 1a) is able to charge storage unit 38 chargings.The electric energy that stores along with charge storage unit 38 increases, and the voltage of node N3 also can increase gradually, and the magnitude of current of electric current I 1a and I1c also reduces thereupon.By the time the electric power of charge storage unit 38 is saturated, and the voltage of node N3 can equate that also the magnitude of current of electric current I 1a and I1c also can produce and be reduced to zero on the matter with the voltage essence of node N1; Simultaneously equivalent diode D also can close not conducting because of node N5, N4 voltage are identical, but the voltage difference between the source electrode of transistor M (in node N4) and grid (in node N7, promptly holding) can make transistor M conducting in low current condition greater than the threshold voltage (threshold voltage) of transistor M.Between above-mentioned charge period, the electric current I 1d that the first DC current I1 shunts away at node N2 can continue the electricity needs of provisioning wireless electrical transmission circuit 24.Because at the beginning of radio auxiliary insert card 20 comes into operation, all to carry out the initialize routine of low power consumption earlier, similarly be to receive the relevant radio signal of base station to prepare to set up radio communication; This moment, the electric current demand of wireless transmission circuit 24 was lower, and the first DC current I1 not only can satisfy the electric current demand of wireless radio transmission circuit 24 with electric current I1d, can also come charge storage unit 38 chargings with electric current I 1a, I1c simultaneously.By the time radio auxiliary insert card 20 finishes the initialization procedure of radio communication, and the electric power of charge storage unit 38 also can be sufficient saturated.

Please continue the 4B with reference to figure, Fig. 4 B is the synoptic diagram of radio auxiliary insert card 20 power regulation circuit 22 runnings when operating on high power consumption state.As previously mentioned, when wireless radio transmission circuit 24 operates on high power consumption state and begins transmitted radio signal, first DC current that dc power supply terminal 34A can provide is not sufficient to the electricity needs of provisioning wireless electrical transmission circuit 24, and the capacitor C in the charge storage unit 38 will begin to discharge for wireless radio transmission circuit 24 and provided extra electric current to replenish electric power this moment.When wireless radio transmission circuit 24 has just begun to want transmitted radio signal and current demand when uprushing, the voltage of node N2 can reduce a little because the magnitude of current of dc power supply terminal 34A is not enough; The voltage of the node N2 this moment node N1 of its short circuit (and with) can be full of that the voltage in node N3 comes lowly behind the electric power than charge storage unit 38, and will make the capacitor C in the charge storage unit 38 begin discharge like this.Capacitor C discharge can produce one second DC current I2 (such as among Fig. 4 B sign); The second DC current I2 can distribute electric current I 2a, I2b at node N3, follows node N3 to node N1 respectively, and two paths of node N3, N4, N5 append to the first DC current I1 that dc power supply terminal 34A provides.This moment transistor M between node N4 (source electrode), N5 (grid) conducting in high current status, after conducting between node N4, N5 just as an equivalent resistance, its resistance value can make that the magnitude of current of electric current I 2a can be greater than the magnitude of current of electric current I 2b less than the resistance value of current-limiting resistance R.In a word, offer the total current I3 of wireless communication module 24 at node N2, its magnitude of current can be the summation of the first DC current I1, electric I2a and electric current I 2b; The summation of the first DC current I1 and the second DC current I2, the two electric current magnitudes of current just.In preferred embodiment, capacitor C in the charge storage unit 38 is the electric capacity of a big capacitance, as is well known, the quantity of electric charge that stores in the electric capacity is the product of capacitance and voltage, in other words, as long as the voltage of node N3 slightly falls, the capacitor C of high capacity just can be disengaged suitable electric charge and be formed the second enough DC current I2; And just be enough to deal with wireless radio transmission module 24 higher electric current demand when the transmitted radio signal by the electric current I 3 that the first DC current I1 and the second DC current I2 addition form.

Please continue 4C with reference to figure.Fig. 4 C is a radio auxiliary insert card 20 when operating on the low power consumption state, the synoptic diagram of power regulation circuit 22 operation situations.When wireless radio transmission circuit 24 received radio signals after transmitted radio signal again or be returned to the low power consumption state of holding state etc., the current demand of wireless radio transmission circuit 24 can reduce.Just as shown in Figure 3, receive radio signals or during standby the first DC current I1 that current demand can provide less than dc power supply terminal 34A at wireless radio transmission circuit 24.This moment, the first DC current I1 not only can satisfy the electricity needs of wireless radio transmission circuit 24, can also replenish the electric power that discharge is lost for charge storage unit 38 simultaneously.Because can discharging, charge storage unit 38 provides second DC current and the loss electric charge when wireless radio transmission circuit 24 operates on high power consumption state, after wireless radio transmission circuit 24 switches to the low power consumption state, the voltage of dc power supply terminal 34A will be slightly higher than the voltage of node N3, and the first DC current I1 will be to capacitor C charging to provide additional electric charge, can also provide electric current I 4 to keep electric current demand under its low power consumption state to wireless radio transmission circuit 24 simultaneously.When wireless radio transmission circuit 24 during at high power consumption state, charge storage unit 38 can slightly reduce because of discharge in the voltage of node N3, after wireless radio transmission circuit 24 switched to the low power consumption state, the first DC current I1 just can provide an electric current I 4a to come to charge again for charge storage unit at node N1.The equivalent diode D of reverse biased can be because the voltage difference between node N4, N5 inadequately greatly and not can conducting between this moment transistor source, drain electrode, make charge storage unit 38 can not draw battery by guiding circuit 40 by node N2, only the electric current I 4a that can distribute via node N1 charges; Can avoid charhing unit 38 to influence the first DC current I1 to the normal current supply under the wireless radio transmission circuit 24 low power consumption states like this by absorbing too many current charges among the first DC current I1.Along with the lasting charging of electric current I 4a, the electric power of charge storage unit 38 can be replenished again, makes the voltage of node N3 also can go up; Voltage up to node N3 gos up to the voltage of dc power supply terminal 34A, and the magnitude of current of electric current I 4a also can reduce to zero, and the electric power in the charge storage unit 38 again can be saturated again at this moment.When wireless radio transmission circuit 24 switched paramount power consumption state again by the low power consumption state again, charge storage unit 38 just can provide second DC current of replenishing electric power again, just as the situation among Fig. 4 B.

Generally speaking, when needing the electric power of big electric current when wireless radio transmission circuit 24 transmitted radio signal, the electric energy that power regulation circuit 22 among the present invention can discharge charge storage unit 38 storages provides extra electric power to replenish, remedying dc power supply terminal 34A provides the deficiency of electric power, makes wireless radio transmission circuit 24 can operate on high power consumption state smoothly.Relatively, when wireless radio transmission circuit 24 operates on the low power consumption state, dc power supply terminal 34A is at the surplus additional electric power that wireless radio transmission circuit 24 required electric powers fully are provided, just can be stored in the charge storage unit 38 of power regulation circuit 22, in order under high power consumption state, being used for afterwards replenishing the electric power of dc power supply terminal 34A deficiency again.With real example comparatively, when the wireless radio transmission circuit is wanted transmitted radio signal and is increased the electric current demand, need about 2 amperes electric current, continue to be approximately 0.001 second (just the period T1 among Fig. 3 or T2, T3 approximately respectively are 0.001 second) in this high power consumption state; But personal digital assistant device 10 approximately only is 0.5 ampere by the maximum current that dc power supply terminal 36A can provide.In preferred embodiment, the capacitor C in the charge storage unit 38 is the electric capacity of high appearance value, and 2 farads (Faraday) for example say so; Under this design, the voltage that the voltage of node N3 needs only than node N1 descends 0.00075 volt (volt) slightly, and 1.5 amperes electric current (the second DC current I2 among Fig. 4 B just) just can be provided between 0.001 second.In preferred embodiment, the resistance value of current-limiting resistance R is chosen as 0.2 ohm (ohm), and the big appointment of the equivalent resistance that transistor M forms between node N4, N5 is 0.002 ohm, makes that the second DC current major part is to branch to electric current I 1a, is supplemented to wireless radio transmission circuit 24 by node N2.Relatively, it is longer that wireless radio transmission circuit 24 operates on period of low power consumption state, big appointment is 0.01 second (time span of period T2, T4 or T6 among Fig. 3 just), the first DC current I1 that this moment, dc power supply terminal 36A provided just can provide electric power to come for 38 chargings of the charge storage unit in the power regulation circuit 22, as the process of describing among Fig. 4 C.Charge storage unit 38 among the present invention also can adopt the battery of rechargeable type except the capacitor C of using high capacity, all can reach effect of the present invention.

Under prior art, because the undercurrent that flash type memory card standards expansion slot provides, can't support the electric current demand of wireless radio transmission circuit under high power consumption state, make the user can't expand personal digital aid (PDA) with simple cheap mode with radio auxiliary insert card function.By contrast, radio auxiliary insert card among the present invention then is provided with the electricity needs that power regulation circuit is regulated the wireless radio transmission circuit, can when the wireless radio transmission circuit operates on the low power consumption state, store electric power, when the wireless radio transmission circuit operates on high power consumption state, discharge electric power again and support the higher electric current demand of wireless radio transmission circuit.So, the function of personal digital aid (PDA) just can extend to the field of radio communication quickly and easily in the mode of plug-in card.Though above-mentioned discussion is to apply to situation in the wireless auxiliary insert card at the power regulation circuit among the present invention, but power regulation circuit disclosed by the invention also can apply to the auxiliary insert card of other functions, regulates the electric power allotment of auxiliary insert card in simple efficient mode.

The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.

Claims

An extrapolating in a personal digital aid (PDA) (it includes for personal digital assistant, radio auxiliary insert card PDA):

One square casing, its upper end is provided with an opening;

One interface connector is located in the upper end open of this square casing, is used for connecting this personal digital aid (PDA);

One power regulation circuit is electrically connected on this interface connector, is used for storing the electric power of one first DC current that this interface connector transmits; And

One wireless radio transmission circuit, be located in this square casing and be electrically connected on this interface connector, be used for converting this personal digital aid (PDA) to radio signal via the electronic signal that this interface connector transmitted and launch, and the radio signal that receives is converted to electronic signal and passes to this personal digital aid (PDA) via this interface connector;

Wherein this power regulation circuit is to be electrically connected on this wireless radio transmission circuit, and when this wireless radio transmission circuit transmitted radio signal, this power regulation circuit can be exported one second DC current to this wireless radio transmission circuit.
2. radio auxiliary insert card as claimed in claim 1, wherein the magnitude of current of this second DC current is greater than first DC current that this interface connector spread out of.
3. radio auxiliary insert card as claimed in claim 1, wherein this personal digital aid (PDA) is provided with in addition:

One battery is used for supplying the electric power of this personal digital aid (PDA) running; And

One touch-screen is used for display frame and accept the input of touch-type.
4. radio auxiliary insert card as claimed in claim 3, wherein the electric power of this first DC current is by this battery supplied.
5. radio auxiliary insert card as claimed in claim 1 wherein deserves this wireless radio transmission circuit not during transmitted radio signal, and this power regulation circuit stops to export this second DC current.
6. radio auxiliary insert card as claimed in claim 1, wherein this interface connector includes a direct current power end, is electrically connected on this power regulation circuit and this wireless radio transmission circuit, is used for supplying this first electric current; Wherein when this wireless radio transmission circuit not during transmitted radio signal, this first electric current can supply this wireless transmission circuit needed electric power, and simultaneously to this power regulation circuit charging; And when this wireless radio transmission circuit during in transmitted radio signal, second DC current that first DC current that the dc power supply terminal of this interface connector is exported and this power regulation circuit are exported can flow into this wireless radio transmission circuit simultaneously so that this wireless radio transmission circuits needed electric power to be provided.
7. radio auxiliary insert card as claimed in claim 6, wherein this power regulation circuit includes:

One charge storage unit is electrically connected in this dc power supply terminal, is used for storing the electric power that this first DC current provides and this second direct supply is provided; And

One guiding circuit, it has an input end and an output terminal, and this input end is to be electrically connected in this charge storage unit, and this output terminal is to be electrically connected in this dc power supply terminal and this wireless radio transmission circuit; When this wireless radio transmission circuit transmitted radio signal and during by this first DC current supply electric power, this guiding circuit can prevent that electric current from flowing to this charge storage unit via this input end by this dc power supply terminal again by this output terminal not; And when this wireless radio transmission circuit transmitted radio signal, this guiding circuit can be imported electric power that this charge storage unit provides and be exported to this wireless radio transmission circuit by this output terminal by this input end.
8. radio auxiliary insert card as claimed in claim 7 wherein includes a metal oxide semiconductor transistor (MOS) in this guiding circuit, this transistorized source electrode is electrically connected in this input end, and this transistor drain is electrically connected in this output terminal; When this wireless radio transmission circuit not during transmitted radio signal, the reverse biased between this transistor source and drain electrode can prevent that electric current from flowing to this charge storage unit by this dc power supply terminal by this guiding circuit; And when this wireless radio transmission circuit transmitted radio signal, the forward bias between this transistor source and drain electrode can be transmitted the electric power of this charge storage unit.
9. radio auxiliary insert card as claimed in claim 7, it includes a current-limiting resistance in addition, is electrically connected between this dc power supply terminal and this charge storage unit, and the voltage of this charge storage unit increases suddenly when being used for preventing this first DC current to this charge storage unit charging.
10. radio auxiliary insert card as claimed in claim 7, wherein this charge storage unit is an electric capacity.
11. radio auxiliary insert card as claimed in claim 7, wherein this charge storage unit is a rechargeable battery.
12. radio auxiliary insert card as claimed in claim 1, wherein this interface connector meets the slot specification of a flash type storage card.
13. an extrapolating is in the auxiliary insert card of a personal digital aid (PDA) (PDA), it includes:

One interface connector is used for connecting this personal digital aid (PDA) in pluggable mode;

One power regulation circuit is electrically connected on this interface connector, is used for storing the electric power of one first DC current that this interface connector transmits; And

One function circuit is located in this square casing and is electrically connected on this interface connector, is used for controlling the function of this auxiliary insert card, wherein can switch on a high power consumption state and a low power consumption state when this function circuit operates;

Wherein this power regulation circuit is to be electrically connected on this function circuit, and when function circuit operated on high power consumption state, this power regulation circuit can be to this operation output one second DC current; And when this function circuit operated on this low power consumption state, this power regulation circuit can stop to export this second DC current.
14. auxiliary insert card as claimed in claim 13, wherein the magnitude of current of this second DC current is greater than first DC current that this interface connector spread out of.
15. auxiliary insert card as claimed in claim 13, wherein this personal digital aid (PDA) is provided with in addition:

One battery is used for supplying the electric power of this personal digital aid (PDA) running; And

One touch-screen is used for display frame and accept the input of touch-type.
16. auxiliary insert card as claimed in claim 15, wherein the electric power of this first DC current is by this battery supplied.
17. auxiliary insert card as claimed in claim 13, wherein this interface connector includes a direct current power end, is electrically connected on this power regulation circuit and this function circuit, is used for supplying this first DC current; Wherein when this function circuit operated on the low power consumption state, the electric power of this first DC current can supply this function circuit needed electric power, and simultaneously to this power regulation circuit charging; And when this function circuit operated on high power consumption state, second DC current that first DC current that the dc power supply terminal of this interface connector is exported and this power regulation circuit are exported can flow into this function circuit simultaneously to provide this function circuit needed electric power.
18. auxiliary insert card as claimed in claim 17, wherein this power regulation circuit includes:

One charge storage unit is electrically connected on this dc power supply terminal, is used for storing the electric power that this first DC current provides and this second direct current power is provided; And

One guiding circuit, it has an input end and an output terminal, and this input end is to be electrically connected in this charge storage unit, and this output terminal is to be electrically connected in this dc power supply terminal and this wireless radio transmission circuit; When this function circuit operates on the low power consumption state and during by this first DC current supply electric power, this guiding circuit can prevent that electric current from flowing to this charge storage unit by this dc power supply terminal by this guiding circuit; And when this function circuit operated on high power consumption state, this guiding circuit can be imported electric power that this charge storage unit provides and be exported to this function circuit by this output terminal by this input end.
19. auxiliary insert card as claimed in claim 18 wherein includes a metal oxide semiconductor transistor in this guiding circuit, this transistorized source electrode is electrically connected in this input end, and this transistor drain is electrically connected in this output terminal; When this function circuit operated on the low power consumption state, the reverse biased between this transistor source and drain electrode can prevent that electric current from flowing to this charge storage unit by this dc power supply terminal by this guiding circuit; And when this function circuit operated on high power consumption state, the forward bias between this transistor source and drain electrode can be transmitted the electric power that this charge storage unit provides.
20. auxiliary insert card as claimed in claim 18, it includes a current-limiting resistance in addition, is electrically connected between this dc power supply terminal and this charge storage unit, and the voltage of this charge storage unit increases suddenly when being used for preventing this first DC current to this charge storage unit charging.
21. auxiliary insert card as claimed in claim 18, wherein this charge storage unit is an electric capacity.
22. auxiliary insert card as claimed in claim 18, wherein this charge storage unit is a rechargeable battery.
23. auxiliary insert card as claimed in claim 13, wherein this interface connector is the slot specification that meets a flash type storage card.