CN103336553A - Portable data entry device with a detachable host pda - Google Patents

Abstract

An apparatus and method are disclosed that can adapt off-the shelf PDA devices (90) to user input/output applications such as data entry applications and cellular phone applications. The resulting apparatus (10) may be sized and shaped to be durable and facilitate handheld operation when the user is mobile during use. The apparatus provides features required for portable data entry such as key entry, barcode scanning, radio frequency identification, and wireless local area network (LAN) as well as wide area network (WAN) communications. The apparatus may be operated (a) in a slave mode with inclusion of a PDA device (90) for use in certain input/output operations that are processor intensive as well as (b) in a stand-alone mode without inclusion of a PDA device (90) for use in certain other input/output operations that are not processor intensive.

Description

Portable data input equipment with dismountable main frame personal digital assistant device

The application is that application number is03824234.6, name is called the dividing an application of patented claim that " the portable data input equipment with dismountable main frame personal digital assistant device ", the applying date are on August 14th, 2003.

The related application of quoting/by quoting the list of references of introducing as proof

Here introduced the full content that the sequence number of submitting on May 29th, 2002 is the unsettled U.S. Patent application of 10/159296 examination by quoting as proof.

The sequence number that the application requires on August 15th, 2002 to submit to is the right of priority of 60/404104 U.S. Provisional Patent Application (attorney docket 7210-3-PRV), this by quoting as proof all in conjunction with this application.

Technical field

Some embodiment of the present invention relates to the portable set for user's I/O function, and user's I/O function is for example for to import data by bar code, radio frequency identification, button input, voice or data communication and other method.Some embodiment of the present invention relates in particular to the use of PDA(Personal Digital Assistant) equipment, and it is used in combination as the portable user input-output apparatus or with this equipment.

Background technology

For instance, known the portable data input equipment and used for automatic recognition system, such as bar code industry.Such as bar code scanner, radio frequency identification equipment and based on the portable data input equipment of the button input of handheld computer use such as inventory tracking, store order number, parcel transmission, sell in the application of route etc.Developed multiple special product, these products comprise bar code scanning system, radio frequency recognition system, data handling system and communication unit for this reason.Though these equipment and data obtain and communication capacity provides desired light attribute together, described equipment be costliness and be relatively-stationary in operation.

Personal electric manager and PDA(Personal Digital Assistant) equipment have also been developed.PDA equipment is the handheld device with information input equipment and personal information management (PIM) software, and described personal information management software is such as going to carry out tabulation, contact tabulation and predetermined.PDA equipment has the remarkable processing power relevant with the function of carry out desired.

Compare with the portable data input equipment, PDA equipment has the advantage of economies of scale.Therefore by using new technology under fast speed, PDA equipment will not be very expensive, more small-sized and provide higher performance in many aspects.Therefore, it will be useful adopting PDA equipment to come to use for the portable data input.Yet PDA equipment lacks uses necessary several key characteristics to multiple portable data input, such as bar code scanner, the keyboard with numeral and/or alphabetic character, wireless communication system and radio-frequency identification reader.

Another key characteristic that lacks in PDA equipment is permanance, and this user during using described equipment is to be essential in mobile.(opposite, between the actual operating period of PDA equipment, its user is normally motionless).In addition, PDA equipment is not configured as the style characteristic of permission simple portable data input under the multiple varying environment of using the portable data input equipment.

Some manufacturers of bar code industry by permitting PDA equipment there from its provider internal electron assembling and in the mode of conventional design it is encapsulated as and has the portable data input characteristics and attempt to address these problems.The example of these products is SPT-1500 and SPT-1700 model machines of the Symbol Technologies of Holtsville in New York.Yet this processing is consuming time and needs expensive design again that it has to repeat to have the introduction of each new PDA.In addition, because resulting equipment is with produced in smaller volumes, so lost the remarkable advantage that uses the PDA technology.

Some manufacturers provide the equipment that is used for increasing external function to PDA equipment.An example of this carriage is 6016 hand held printer model machines from the Monarch division of Paxar Corporation of White Plains in New York.Another example of equipment is the Card Expansion Pak unit that is provided by Compaq Computer Corporation of Houston, and Texas is used for its iPAQ Pocket PC unit.Though these products are will be such as printing and the special characteristics of card slot be increased to and do a good job among the PDA, but because they are not provided for characteristic and the adaptability of use in multiple portable data input is used, so they can not make PDA equipment be applicable to the portable data input.In addition, when the user moves during the use equipment, these equipment do not provide durability degree, the size and dimension of simplifying hand-held.

Except above-mentioned defective, prior art can not realize the requirement that formed in the industry of described equipment, wherein equipment want can be at some capacity, operate at the independent pedestal that does not comprise PDA equipment.These requirements come from some portable data input operation not to be had the processor that strengthens and does not therefore need to use the PDA unit as a part of data input solution.By in this data input operation, eliminating PDA selectively, can in remaining on other application, keep the minimize weight of hand-held scheme in the use PDA option, described other application can be the processor that relatively more strengthens.

Developed the mobile phone of mobile phone, combination with mobile phones and PDA.In unit equipment, mobile phone and PDA all are integrated in the independent unit.The equipment of these combinations is will be than PDA or mobile phone self big and can be heavier than using independent equipment (just, PDA or mobile phone).

In addition, by this system with by the described the present invention of the application of reference accompanying drawing relatively, conventional, traditional limitation and shortcoming with technical scheme that propose is apparent for one of ordinary skill in the art.

Summary of the invention

Embodiments of the invention provide a kind of makes the existing PDA equipment that uses be adapted to specific user's I/O applied unit, and this user's I/O is used such as using and mobile phone or wireless communications application for portable data input application, data-management application, Image Acquisition.This unit can use independently or be connected use with PDA equipment.When the user moved, the size and dimension of described unit can be specified to be convenient to the structure reinforcement and/or to simplify hand-held during use.Described unit provides for portable data input and/or communication or the desired characteristic of imaging, for example button input, bar code scanning, radio frequency identification and radio communication, for example Local Area Network is communicated by letter with wide area network (WAN), mobile communication or camera.Embodiments of the invention can make described user's I/O unit operate in subordinate pattern (a), comprising being useful on the PDA equipment that in specific portable I/O operation, uses, all if any the processor that strengthens, and operation in stand-alone mode (b), wherein do not include the PDA equipment that in specific other portable I/O operation, uses, such as the processor that does not have to strengthen.

Embodiments of the invention comprise a kind of by making the existing PDA equipment that uses and user's I/O unit to fetching the method that user's input/output capabilities is provided, and this user's input-output apparatus can comprise for example hand-held data input shell, craft port, camera or mobile phone.Described user's I/O unit is provided with at least one craft port, in order to engage with PDA equipment selectivity, based on the PDA device engagement time, the disposal system of this PDA equipment can be used for the user's I/O application such as data input and mobile phone.This user's I/O unit can be with first pattern of PDA device engagement and with in second pattern of PDA device engagement do not use.In an embodiment of the present invention, this user's I/O unit comprises user interface, such as the keypad with numeral input button and/or one group of button importing for letter.This user's I/O unit can also comprise craft port, and such as groove, it forms is convenient to receive PDA equipment to be docked to wherein.When this PDA equipment interconnection was in the described groove, butt connector was arranged in groove and matches with the input-output connector of PDA equipment.This user's I/O unit comprises interface circuit, it is connected to butt connector at least one element in user's I/O unit, and when the PDA equipment interconnection is in user's I/O unit this user's I/O unit control PDA equipment.Various aspects of the present invention and sequence number are that the invention described in the unsettled U.S. Patent application of 10/159206 examination is similar, this by quoting as proof in conjunction with this patent.

Details among these and other advantage of the present invention and novel characteristics and the embodiment will be understood from following instructions and accompanying drawing more completely.

Description of drawings

Fig. 1 shows the exploded view according to the user's I/O unit that comprises the portable data input equipment of the embodiment of the invention.

Fig. 2 shows the top view of equipment shown in Figure 1.

Fig. 3 shows the side view of equipment shown in Figure 1.

Fig. 4 shows the front view of equipment shown in Figure 1.

Fig. 5 shows the backplan of equipment shown in Figure 1.

Fig. 6 shows the cross-sectional view of the A along Fig. 5-A line apparatus shown inner member according to the embodiment of the invention.

Fig. 7 shows the schematic block diagram according to the electronic component that is associated with equipment shown in Figure 1 of the embodiment of the invention.

Fig. 8 shows the exploded view according to the first optional embodiment of the portable data input equipment of many aspects of the present invention.

Fig. 9 shows the front view of equipment shown in Figure 8.

Figure 10 shows the side view of equipment shown in Figure 8.

Figure 11 shows the cross-sectional view along 11 –, the 11 line apparatus shown of Fig. 9 according to the embodiment of the invention.

Figure 12 shows the front view according to the second optional embodiment of the portable data input equipment of many aspects of the present invention.

Figure 13 shows the side view of embodiment shown in Figure 12.

Figure 14 shows the typical PDA equipment according to the embodiment of the invention.

Figure 15 shows the front and back according to the typical mobile phone of the embodiment of the invention.

Figure 16 A and 16B show two embodiment of mobile phone of Figure 15 that attaching according to many aspects of the present invention has the PDA equipment of Figure 14.

Embodiment

Usually, embodiments of the invention comprise a kind of user's I/O unit of using for input and/or output, input and/or output use such as be data input, data management, mobile phone communications, via Image Acquisition of camera etc.In this unit between the operating period when the user moves, this unit preferably is specified to the size and dimension that is easy to hand-held.When butt joint so that protection PDA(personal digital assistant) when the unit was not subjected to be compromised between the following operating period of rugged surroundings, this unit embedded or is attached on the PDA unit.

Radio module one or more that above-mentioned user's I/O unit can also comprise for the radio module of radio communication and be used for reading the scanner of bar code, is used for the reader of radio frequency identification and is used for radio communication.

User's I/O unit 20 can comprise the hand-held bracket unit that for example has auxiliary processor, boosting battery and other element, and these elements connect and are assembled into so that hand-held bracket unit is operated at the independent pedestal that does not comprise PDA equipment.In addition, the boosting battery in hand-held bracket unit will increase the working time of assembled unit (unit of PDA and carriage just).

Should operating handle can be installed hand-held I/O unit, to help the scanning of rifle formula.This operating handle can be equipped with the trigger switch for bar code scanning and/or radio frequency identification, and same, shell also can so arrange.Alternatively, this hand-held I/O unit can have the peripheral part that dwindles in keypad area, to allow a hand holding device comfortable between the operating period.Should can also be configured to engage in operation between (off-the-shelf) of the existing use that is of different sizes characteristic PDA equipment in order to allow by hand-held I/O unit.

In an embodiment of the present invention, this user's I/O unit provides craft port, groove for example, and PDA equipment matches with this butt connector in groove, allows the PDA equipment of multiple width to be received in wherein simultaneously.The shape of this I/O unit also helps PDA equipment to engage in the use, and resulting whole configuration is less thus, and is configured to be convenient to hand-held.These characteristics will be seen in the embodiment that after this illustrates.Perhaps, this I/O unit can comprise the part that optionally is attached to PDA equipment in another way, in order to therewith or independently use.

Turn to now shown in Fig. 1 to 7 according to the first embodiment of the present invention, portabledata input equipment 10 comprises that user's I/O unit 20 (just a), optionally engages with the existingPDA equipment 90 that uses on it.PDA equipment 90 includesdisplay 91 in front and input-output connector 92 is arranged in the bottom.The cross-sectional view of Fig. 7 has illustrated the internal printed circuit board with attachingcircuit 93, theinternal cell 94 of PDA and theshell 95 of PDA.I/O unit 20 comprisescavity 21,secondary monitor 57,keypad 22 and operating handle 23.Bar code (Symbol 923 engine, Holtsville, NY) and/or RFID reader (Tiris Series 2000 Mini RFM Engine and Antenna from Texas Instruments, Dallas, TX),scan module 24, thetrigger switch 25 on being installed inhandle 23 is worked.PDA unit 90 is inserted in thegroove 21 of I/O unit 20.Optional end cover 34 prevents thatPDA 90 from damaging in the portable data input environment.When PDA 90 was docked in thegroove 21 fully, the working portion of thedisplay 91 that this I/O unit design is thisPDA 90 at least was clearly visual.Any subregion that is arranged in theshell 95 below thedisplay 91 can be covered by I/O unit keypad 22 in frontal view.In an operator scheme, incase PDA 90 is docked in thegroove 21 fully, the operating switch ofPDA unit 90 or other driver just are capped and are rendered as and can not operate.Alternatively, I/O unit 20 is configured to can allow if desired to insert these drivers.Be associated with I/O unit 20, can provide wireless communication module or other operational module 28(shown in Figure 6).Thismodule 28 can also be configured to insert by module opening 32.Thisopening 32 allows the user to insert, move or replace wireless module.PC or other data terminal thataerial lug 33 allows this unit to be recharged and to allow data flow to connect.WhenPDA unit 90 was docked in thegroove 21, the input-output connector 92 ofPDA 90 was connected to I/O unit butt connector 27(ELCO, Molex etc.).Butt connector 27 allows being operatively connected between the internal circuit ofPDA unit 90 and I/O unit 20.This internuncial part produces via microprocessor 44.But be operatively connected permission at this between I/O unit 20 and thePDA unit 90 and using the operating characteristic that visits the PDA unit in the I/O unit 20.By this way,PDA unit 90 and its processing power and I/O unit 20 are combined, has typical manufacturing equipment characteristic (just to provide, data management, order input, price checking, contact data library management and data are handled) the portable data input equipment of all functions, but obtained the advantage of being saved by the ratio that the manufacturing thatPDA equipment 90 is used for other use provides.I/O butt connector 27 all is integrated intoPDA unit 90 and is connected with I/O unit 20 electronics, makes up multiple desired characteristics in the formed portable data input equipment to be provided at by it.Notice that as Fig. 6 I/O unit 20 also comprisesmain circuit board 26, its element is described in more detail with reference to Fig. 7.Other electron component, for exampleradio interface module 28,battery 29 etc. are encapsulated in the I/O unit 20, and it can form by hard plastic material or materials similar, with the expectation durability degree in the environment that is provided at its use.

The block diagram of expression according to the electronic component of theunit 10 of present embodiment has been shown among Fig. 7.PDA unit 90 is packaged with the input-output connector 92 of PDA.Thisconnector 92 is attached toPDA battery 94 and PDA circuit board 93.PDA circuit board order is connected to theLCD display 91 of unit 90.Whenunit 90 was inserted in thegroove 21 fully,connector 92 just was connected to thebutt connector 27 of I/O unit 20.

Thebutt connector 27 of I/O unit 20 is connected to multiple electronic component so that these elements are connected with PDA unit 90.Microprocessor 44 is as the interface work that is used for some signals.For example,butt connector 27 can be connected tonote amplifier 42, and it is connected toaudio converter 41 by microprocessor 44.For example when suitable reading obtained by the portable data input equipment, audio-frequency amplifier circuit 42 can be provided in the user is alarmed with theaudio converter 41 that is connected.Alternatively, wireless audio communication can be provided via voicefrequency circuit by wireless module 28.Butt connector can also be connected to indicator, such ashummer 43, and via thekeypad 22 of microprocessor 44.Bar code/RFID scanner module 24 andtrigger switch 25 also are connected toPDA 90 viamicroprocessor 44 and butt connector 27.Bybutt connector 27, PDA also withcommunication transceiver 48 interactions.This transceiver provides via the mode ofaerial lug 49 with the exterior letter of I/O unit 20.

Aerial lug 49 allows the standard of PC or other data collector terminal to connect.Aerial lug 49 also allows 29 chargings of I/O unit battery.This battery charge is carried out by battery charger 53.Battery 29 can be connected topower supply 52 and above-mentioned PDA battery charger 51.By this way, for using as the portable data input equipment, I/O unit 20 can be connected to external power source so that rechargingbattery 29 andPDA battery 94 to be provided via aerial lug 49.It should be noted that, connect based on the inside between thepower supply 52 ofPDA unit 90 and I/O unit 20, can provide to the extended operation as the portable data input equipment from one of battery supply the power supply of one of the element of I/O unit 20 orPDA unit 90 operation.

To use separately, not have under the situation ofPDA unit 90 at I/O unit 20,secondary monitor 57 will come the alarm to the user for the action of adopting by the user, may be by bar code/REID scanner module 24.Secondary monitor is bymicroprocessor 44 controls.

This block diagram has been described theradio interface module 28 that is connected to antenna 55.This wireless module is communicated by letter withPDA equipment 90 via butt connector 27.In the variation of this embodiment, I/O unit 20 can not comprise radio interface module 28.In this case, will there be wave point, perhaps the wave point that is provided byPDA unit 90.

Alternatively, by the portable data input equipment that the combination ofPDA unit 90 and I/O unit 20 is created, can include a kind of about the embodiment of several variations of battery electric quantity of providing fromPDA unit 90 and I/O unit 20.First kind of variation will be thatunit 90 andunit 20 comprise its oneself battery, not have the transmission of battery electric quantity between the two.Second kind of variation is that I/O unit 20 comprises a battery, and this battery will be toPDA unit 90 and I/O unit 20 power supplies.The third variation is to haveunit 90 and aunit 20 that includes battery, and whereinunit 90 can be in use provides electric weight and charging to the battery of unit 20.The 4th kind of variation is to haveunit 90 and theunit 20 that includes battery, and whereinunit 20 can be in use provides electric weight and charging to the battery ofunit 90.

Turn to Fig. 8-11 now, show optional embodiment of the present invention.In embodiment formerly, the inside that is provided the existingPDA unit 90 that uses by the I/O unit of 120 marks connects, to be similar to previously described mode.ThisPDA unit 90 also comprisesdisplay 91,Docking station 92 and a series of control knobs or the analog on theplate 96 in front.The inside of portabledata input equipment 110 byPDA unit 90 and input-output unit 120 is connected and forms.In this embodiment, when with 90 combinations of PDA unit, I/O unit 120 is configured to provide the handheld portable data input device.In this embodiment, withPDA unit 90 combination in, I/O unit 120 provides the handheld unit of small-sized small section.I/O unit 120 comprises secondary monitor 157,keyboard 122, on the portion of the handle reduced in size that is formed at I/O unit 120 that goes out as shown, so that with hand-tight holding.Groove 121 also provides and acceptPDA unit 90 in docking structure, but this groove preferably allows thePDA unit 90 of different in width to be adapted to wherein at the outer ledge of its opening.Because the size by themultiple PDA unit 90 of third party manufacturer manufacturing can change, the characteristic that adapts to different size in hand-held I/O unit 120 provides selects be most suited to specific user's application flexibility for which kind ofPDA unit 90.

Shown in invention in, can create the portable data input equipment of the function of the removable PDA with increase.When cooperating with I/O unit, this PDA unit and primary processor thereof become the master controller of whole portable data input equipment.As separate equipment, this system still can be in the function that does not have to carry out under the PDA equipment certain desired.

In this embodiment, situation about being formed bypanel 163,back cover 164 andgroove shell 165 or other similar structures athandheld unit 120 is also arranged.In the shell of formedhandheld unit 120, printed circuit board (PCB) 126,keypad 122,bar code scanner 124 and other element can be positioned over and form solid handheld portable data inputdevice.Butt connector 127 is positioned over via outconnector 92 and receives and be connected to PDA equipment 90.The shell ofhandheld unit 120 also allows to dock thisPDA unit 90, so that between as the portable data input equipment operating period,display 91 is hindered in the information of watching on it.

Among Figure 12 and 13 another embodiment of the present invention has been shown, portable input equipment 150 wherein is provided, comprised the optionally connectedPDA unit 90 that closes and hand-held I/O unit 170.In this embodiment, reduced the size of this I/O unit 170, so that it is adapted to hand-held the use withPDA unit 90 combination the time, has that is to say very little and be easy to hand.In this embodiment, this hand-held I/O unit 170 be configured to havefaceplate part 172,back cover part 174 and receive thegroove 175 of PDA unit 90.In this hand-held I/O unit 170, the multiple electronic component relevant with previous described embodiment can be provided, comprise the operation interface such as keypad, secondary monitor, radio frequency recognition system, bar code scanner etc.WhenPDA unit 90 docked with it, this hand-held I/O unit 170 provided unique handheld unit, and it has small section and also be easy to a hand as the portable data input equipment time and uses.Back side that should hand-held I/O unit 170 is provided with the support sector toPDA unit 90, and when not requiringoperation PDA unit 90 and be easy to be held by the user.When thisPDA unit 90 was in its docking location, it was also protected by the positive ofhandheld unit 170.

Figure 14 shows theschematic PDA equipment 200 according to the embodiment of the invention.ThisPDA equipment 200 comprisesdisplay 202 and is used for butt joint as theelectric power connector 201 of user's I/O unit of mobile phone.This PDA equipment can also comprise that other mechanical osculating element is to help user's I/O unit to the security ofPDA equipment 200.

Figure 15 shows according to thefront side 210 of the schematicmobile phone 212 of the embodiment of the invention and rear side 211.Thefront side 210 of thismobile phone 212 comprises theuser interface keyboard 213,display 214 of schematic mobile phone and is used for andbutt connector 215 that theelectric power connector 201 of thisPDA equipment 200 cooperates.Therear side 211 of thismobile phone 212 comprises for thekeypad 216 of character data input and is used for andbutt connector 217 that theelectric power connector 201 of thisPDA equipment 200 cooperates.

Figure 16 A and 16B show twoembodiment 220 and 221 that dock the PDA equipment of the mobile phone of Figure 15 and Figure 14 according to many aspects of the present invention.With reference toembodiment 220,mobile phone 212 is docked to the front ofPDA equipment 200, so thatelectric power connector 201 is coupled to butt connector 217.In thisembodiment 220, the front ofmobile phone 210 outwardly, and the back side ofmobile phone 211 covers the front of PDA equipment, so thatmobile phone 212 is as the lid ofPDA equipment 200.

In this structure, the front that includes thePDA equipment 200 ofdisplay 202 is protected by mobile phone 212.And when being docked toPDA equipment 200,mobile phone 212 still can play the mobile phone of whole operation.According to embodiments of the invention, data can exchange betweenPDA equipment 200 andmobile phone 212 viaelectric power connector 201 and butt connector 217.Yet formobile phone 212 orPDA equipment 200 are used as specific installation,mobile phone 212 can take off fromPDA equipment 200.

With reference toembodiment 221,mobile phone 212 is docked to the front ofPDA equipment 200, so thatelectric power connector 201 cooperates with butt connector 215.In thisembodiment 221, the back side ofmobile phone 211 outwardly and the front ofmobile phone 210 covers the bottom in the front of PDA equipment 200.Thedisplay 202 of thisPDA equipment 200 is still visual to the user.In this structure, the user can use thekeyboard 216 input characters-numerical data ofmobile phone 212 for example to come write e-mail message.

According to embodiments of the invention, in order for example to be easy to write e-mail message, data can exchange betweenPDA equipment 200 andmobile phone 212 viaelectric power connector 201 and butt connector 215.For example, this email message can be presented in compiling procedure on thedisplay 202 of PDA equipment 200.For example in order to send email message, this PDA equipment can be included in the wave point of wide area network (WAN).

Though described the present invention with reference to specific embodiment, one of ordinary skill in the art should be appreciated that not breaking away under the scope of the invention can carry out multiple change.In addition, do not breaking away under its scope, under instruction of the present invention, can adopt particular condition or material to carry out multiple modification.Therefore, the present invention is not restricted to disclosed specific embodiment, and the present invention will be included in all embodiments within the claims.

Claims (6)

1. system, it comprises portable calculation element and the optionally combination of removable user's input-output apparatus,

Described equipment has at least two craft port, be used for described equipment and described portable calculation element are docked with at least two kinds of different orientations mutually, described equipment also has two opposite sides, first side comprises for the keyboard of letter-numerical data input and at least one craft port of described two craft port at least, and

Described portable calculation element has the housing of band display, and has at least one selectable craft port related with it,

First kind of orientation in described at least two kinds of orientations, one of them of described at least two craft port of described equipment by described equipment docked with described portable calculation element, make outside first side direction of described equipment, allow the user to carry out letter-numeral input near keyboard, simultaneously the display of described portable calculation element is still for the user sees, and

In second kind of orientation of described at least two kinds of orientations, another of described at least two craft port of described equipment by described equipment docks with described portable calculation element, makes first side of described equipment cover the front of described portable calculation element.

2. the system as claimed in claim 1, wherein said equipment is included in the keypad interface on its both sides, but when described equipment is docked to described portable calculation element with at least a operating structure when, one of them of described keypad interface is come-at-able, but when described equipment was docked to described portable calculation element with another kind operating structure at least when, another of described keypad interface was come-at-able.

3. the system as claimed in claim 1, wherein said equipment interconnection is to the front of described portable calculation element, make the butt connector of described portable calculation element cooperate with butt connector on the described equipment, and described equipment is outwards positive, the back side of described equipment covers the display of described portable calculation element, with the lid as described portable calculation element.

4. system according to claim 1, wherein said equipment comprises first side with at least the first interface keypad, display and first butt connector, and the rear side with at least the second butt connector, described second butt connector is used for cooperating with the connector related with described portable calculation element, the rear side of wherein said equipment comprises that also wherein said equipment can make its face side or trailing flank to described portable calculation element to being connected into for second keypad of data input.

5. system as claimed in claim 4, wherein first and second butt connectors allow described equipment to be connected to described portable calculation element with different orientations.

6. system as claimed in claim 5, wherein, a kind of in the described orientation is positioned to cover the part of described portable calculation element with described equipment, makes that the display related with described portable calculation element is to be user's finding, and with the keypad of described device association be come-at-able.

Images