Embodiment
Referring to Fig. 1, the cell phone shown in it has the battery that comprises according to the digitalizer of most preferred embodiment of the present invention.Cell phone 100 has housing 102 and is used for from the retractible antenna 104 of cell phone 100 transmissions with the information of reception.Battery 106 comprises detachable battery 106, its machinery, electrically is coupled on the housing 102 to power to cell phone.The outer surface of removable battery 106 (or housing) forms (or comprising) display unit 110 and digitalizer 112 similarly.Power supply is included in the removable battery 106 to power to cell phone (comprising other circuit in digitalizer 112, display unit 110 and the battery 106).Digitalizer 112 make the user can be in cell phone entering handwritten information, conventional letter (gesture), order or note (hand-written character or hand-written information), display unit 110 shows the hand-written information of input.Digitalizer 112 preferably has digitlization zone 114, and a hand-written character can only be held or receive to their size preferably once.Write for example hand-written characters such as letter, numeral in the digitlization zone 114 that the user uses pen (stylus) 120 to provide on digitalizer 112.Pen 120 can be any electronic pen well-known to those skilled in the art.Pen can be hard-tipped pen, is pressing digitalizer to produce the character of being write.By contact with digitalizer 112 or in its vicinity the pen 120, each hand-written character can be write identical digitlization zone 114.If necessary, the user paused before writing a hand-written character and makes cell phone can detect each hand-written character for a moment.After pausing, the user continues to write the hand-written character that each increases in same digitlization zone 114, up to producing, finish or imported information.Hand-written character is received (detecting) and is used for producing thus readable character; Below will be described in detail this.Control button 108 is housed with digitalizer 112 and other the circuit input controlled function of input in battery 106 according to hand-written character or information on the surface of battery.
Display unit 110 and digitalizer 112 mechanically place on the battery 106 or integrally are coupled in battery 106, and digitalizer 112 is preferably located by display unit.Message that the control button 108 that is coupled in battery 106 makes the user to control and to handle to receive by digitalizer is to finish such as functions such as storing, retrieve, proofread and correct and abandon.Battery 106 also comprises an output port 116, and the user is coupled to external charger with battery 106 or cell phone is coupled on the ancillary equipment.Output port 116 has and is used for data passes and for being connected the universal serial bus that power supply is used.Bus has three lines, first line is T (former code data) line, second line be C (complement code data) line they are unidirectional lines, and the three-wayly be R (returning) line, can make cell phone and below communicate and data passes between the digitalizer that will describe in detail.On battery 106, provide button release 118, be used for untiing (pulling down) battery 106, thereby battery 106 is disconnected and pull down from cell phone from cellular housing 102.
Referring to Fig. 2, wherein show from having the perspective view of the removable battery of pulling down according to the cell phone of the digitalizer of second embodiment of the invention.In a second embodiment, be similar to the digitalizer 112 of Fig. 6, digitalizer 212 is positioned on display or the screen 210 (or position thereon or make its part), and is not positioned at display 210 next doors or its below.The interlocking 202 that is positioned on the battery both sides is linked housing on the cell phone, so that allow battery to link cell phone or pull down.Interlocking 202 provides battery, PW, and the R of battery, T and C data wire being connected the cell phone housing.
Referring to Fig. 3, wherein show from having the perspective view of the removable battery of pulling down according to the cell phone of the digitalizer of the third embodiment of the present invention.In the 3rd embodiment, battery 106 has the digitalizer 312 that is positioned at display 110 belows, and but, digitlization zone 114 is divided into 4 digitlization part 314-320, and a hand-written character can be held or receive to the size of each digitlization part.Therefore, the user before the repetitive sequence shown in each digitlization part 314-320 in write hand-written character, for example, in each part of 4 part 314-320 of digitalizer 312, write hand-written character continuously according to the order that finishes from part 314 beginning parts 320.This is continuously repeated in proper order, till whole information input.Digitlization part 314-320 conveniently is identified or identifies by the user, to improve precision.
Referring to Fig. 4, wherein show from having the perspective view of the removable battery of pulling down according to the cell phone of the digitalizer of fourth embodiment of the invention.In the 4th embodiment, battery 106 comprises having the digitalizer 412 that is divided into 4 digitlization part 414-420, remove digitalizer 412 be arranged in display screen 410 or make outside its part and the digitalizer 312 of Fig. 3 similar.
Referring to Fig. 5, wherein show the battery and the cellular circuit block diagram that have according to the digitalizer of most preferred embodiment of the present invention.Cell phone 100 comprises the antenna 502 that links to each other with duplexer 504, and duplexer 504 is used for conversion between receiver 506 and transmitter 508.Cellular transmitter 508 can be acoustic transmitter or infrared ray transmitter, be used for hand-written information is downloaded to electronic installation, for example in the computer, radio frequency unit 530 has by self-locking serial digital bus 512 and receiver 506, the microcomputer 510 that transmitter 508 and interface 514 link to each other, data/address bus 512 flow control signal and data-signal in the middle of microcomputer 510, transmitter 508, receiver 506 and interface 514.Microcomputer 510 also links to each other with memory 516, wherein for example comprise read-only memory (ROM), be used to store the subprogram of the cellular operation of control, and random asccess memory (RAM), be used for being stored in the data of the information that the data of variable that the processing procedure of hand-written information obtains or reception maybe will be sent out.Control unit 540 comprises the interface 514 that links to each other with keyboard 518, and keyboard 518 is used to receive user's response by button, for example startup of call or dialing, they under the control of microcomputer 510 from interface 514 by arriving transmitter 508.Display 520 also links to each other with interface 514, is used for display message, for example the telephone number of input on keyboard 518.Audio control circuit 522 control loudspeakers 524 and microphone 526 allow to carry out bi-directional speech communication in mode well known in the art.
Interface 514 links to each other with cellular battery by output port 116, and output port 116 is supported power line, PW, and serial data bus, as described below.Universal serial bus 116 is used as serial communication interface (SCI), for example the MC 68 CH11 series of 8-bit microprocessor (or its equivalent).The feature of this bus is non-return-to-zero (NRZ) form (start bit, 8 or 9 data bit and a position of rest) of employing standard, and satisfies following criterion:
(1) before transmission/reception character, make spare bits be in the logical one state.
(2) use start bit (logical zero) to represent the beginning of frame.
(3) least significant bit preferentially transmits and receive data.
(4) position of rest (logical one) is used to indicate the end of frame.One frame comprises the start bit, 8 or 9 s' character, and position of rest.
(5) when sending in the time at least one whole frame or receiving low (logical zero), determine to interrupt.
T (former code data true data) and C (complement code data Complement data) line are unidirectional lines, and its interface 514 by control unit 540 links to each other with radio frequency unit 530, and are used for enclosing device in radio frequency unit 530 and periphery and other and communicate by letter.Article three, line R is bidirectional lines (returning), is used by microcomputer 510 and control unit 540 and peripheral unit, is used for communicating by letter with radio frequency unit 530 and other device on this bus.Utilize T and C to set regularly, make data pass through bus.The more detailed description of data format is seen U.S. Patent No. 4,972 432 " MultiplexedSynchronous/Asynchronous Data Bus ", and Wilson etc. classify reference as at this.
Cell phone is the MICROTAC of Motorola for example
TMCellular battery has been modified according to most preferred embodiment of the present invention, and the recognition device (engine) 560 with comparator 562 and adjuster 564 wherein is housed.Recognition device 560 and cell phone are by power unit 568 power supplies of battery.Recognition device 560 and memory 558 and the digitalizer 552 that is used for entering handwritten information link to each other, and the improved cellular user who receives hand-written information uses pen 120 to write hand-written character on digitalizer 552.Digitalizer 552 has a detector 554 at least, is used to respond contact with digitalizer 552 or the motion of approaching pen 120 produces signal.(describe or write) hand-written character recognition allowing device 560 retrievals that on digitalizer 552, produce.For example, the hand-written character of retrieval and the template that is stored in a plurality of characters in the memory 558, numeral etc. compare, and are used to produce readable character, and its details is as described below.
Recognition device 560 in battery is T (former code data) to link to each other with cellular output port 116 with two data wires C (complement code data) by label, is used for for example being sent in to cell phone the data of the readable character of input on the digitalizer 552.Output port 116 has 4 lines, i.e. C, T, R and PW line.The C of output port 116, T links to each other with recognition device 560 with R line and power line PW, thereby the transmission and the power of data are provided.Recognition device 560 also can be connected in the common signal line that label is R (return data) by mode well known in the art, synchronously transmits at return data signal that is sent by cell phone on the return data line and the data-signal that receives from recognition device 560 on T (former code data) and C (complement code data) line.When producing readable character when the reception hand-written information and by it, readable character shows on display 570, makes the user can see the information of being deciphered by recognition device 560.
In this way, when the user writes on digitalizer or during entering handwritten information, produce readable character from hand-written character, thereby formation hand-written information, and arrive cell phones by recognition device 560, thereby for example on display 520, shown or and telephone number be associated and be stored in the cellular memory.User profile can comprise instruction, and the indication cell phone is finished given task or operation when by cell phone, for example comprising dialing the number or sending a page.Therefore,, make it comprise digitalizer and recognition device, and by data wire C, T link to each other with improved battery with R by improved cellular battery.Existing cell phone just can receive hand-written character by the digitalizer that is contained in the battery.The user only need obtain to have the improved battery of digitalizer and recognition device, just can entering handwritten information so that for example to information annotated or indication cell phone finish particular task.
Referring to Fig. 6, wherein show cellular operational flowchart according to Fig. 5.For entering handwritten information, the user uses pen being positioned on the digitalizer 552 of battery in the step 604 and writes or entering handwritten information (or character).Hand-written information can be imported by the electricity consumption submode, for example by fax.Will be understood by those skilled in the art that when carrying out telephone relation, the user is not easy entering handwritten information, up to end of conversation.Therefore, be preferably in when not carrying out telephone relation by improved cellular battery input information or hand-written information.In the step 602, recognition device 560 is checked so that determine whether input is arranged on digitalizer 552, if do not have, then continues to check in the step 602 input of hand-written information.Yet,, use various technology to catch hand-written input by digitalizer when being checked through when on digitalizer 552, input being arranged in the step 602.For example the position of pen 120 can be detected (for example about per second 100 times) apace, and with (X, Y) coordinate sequence storage.(X, Y) coordinate is explained, so that determine the input to digitalizer 552 for these.Digitalizer 552, for example comprise the detector 554 that is used for pen 120, it follows the tracks of the motion of pen 120 on digitalizer 552, when for example pen contacts with digitalizer, be pressed in partly on the digital surface of digitalizer 552, thereby produce curtage.Make the signal that produces by measuring when in addition, the pen 120 of charging is on the surface of the digitalizer that the material of known resistivity covers or near its surface at the edge on the surface of digitalizer 552; Or by pen 120, they launch radio frequency (RF) energy on the surface of digitalizer, and the distance of RF energy is detected on the surface of digitalizer.
Utilize pen 120, by describing hand-written character on digitalizer 552, the user is input or generation hand-written character in digitlization wide 114 (or 214) or digitlization space 314-320 (or 414-420).Digitalizer 552 is followed the tracks of the motion of pen 120 on digital surface, and in the step 606, and retrieval is sent to the hand-written character of recognition device 560 or the image of describing.Recognition device 560 for example has handwriting recognition algorithm, and the sequence that this algorithm is used to discern the point of being caught by the digitlization element in the step 608 is as readable character or the instruction that can be explained by microcomputer.
According to most preferred embodiment of the present invention, use a kind of trainable or subscriber-related system, wherein the user at first imports several examples of each character that will be identified, and is used for training system, makes it discern the hand-written of user.Sampling is stored and makes it to pass through recognition device 560, and it compares by 562 pairs of inputs of comparator, thereby produces the sampling corresponding to readable character or instruction.In case sampling is stored, system just uses the newer input of comparator 562 and the sampling of storage, thereby determines character that write or that describe on digitalizer 552 going on foot 608.Trainable system can reach high accuracy of identification for the specific user.In addition, the sampling of input when being retrieved, just contrast storage model for example readable character compare.The third method comprises the hand-written character of retrieval by the input of neural net or the processing of other statistical organization, thereby discerns the output classification under their.
According to another kind of embodiment of the present invention, recognition device 560 does not need training, and can be that the user has nothing to do.Recognition device 560 is subscriber-related or the user has nothing to do hardware that depends on recognition device or identifier and software.The recognition device that common user has nothing to do requires more memory distribution than subscriber-related recognition device.The identifier that the user has nothing to do is often discerned the character of square character and sytlized font, for example the character in English and Chinese.Subscriber-related identifier is limited to identification square character usually.The identifier that the user has nothing to do can be used by the user of any amount, and user-dependent identifier is used for discerning a people's a kind of hand-written pattern usually by training.
In the step 610, determine whether the end of the information that retrieves, for example, this may comprise by the user imports a predetermined stroke (instruction), is used for the end of flag information.The user can import other conventional letter or stroke, thereby produces the digitlization element that can be used to control this device in many ways.Described conventional letter can be scheduled to, or trained as previously mentioned, thereby make cell phone finish required function.For example, the user can import several leading character of the name of storing in catalog memory, write a circle then, thereby orders microcomputer 510 search address from memory, and sends hand-written information to this person.Another instruction conventional letter for example comprises that the training cell phone is finished particular task when the ad-hoc location of user on the digital surface of digitalizer 552 raps.Which button this can needn't remember by it for the user provides more selectable information.
In the step 612, in case retrieve the end of information, storage is by the hand-written information of digitalizer 552 inputs.Then, appear on the display 570, the user is seen and proofread and correct this information in step 614 hand-written informations.In the step 616, by selecting, for example a character or a word in the information are done bright, the user can proofread and correct described character or word in the step 618 by starting adjuster 564, adjuster 564 excitation digitalizers 552 make it be received in another input (accepting other hand-written information) on the digitalizer, character or word (substitute character) are at the character or the word of step 620 replacement highlights.Therefore, in case after adjuster 564 was activated, the user just can proofread and correct any mistake in the input information.Store as the readable character that forms hand-written information or instruction with its last form in step 622 information then.Realize the step of control information by step 614-622.In the step 624, the mode of knowing with those of ordinary skills is delivered to cell phone to this information by the suitable circuit of connecting output bus 116 on universal serial bus.In the step 626, receive this information and storage in memory 516 by cell phone.When information is received, can be used as the appearance information storage, so that be associated with other user profile or be associated, be used for discerning the owner with a telephone number.For example, the several characters by writing a name are also described dialing instruction (standardized circle), then can make cell phone dial the telephone number relevant with the name of importing.This name is retrieved later on also and other input information constitutes together and can for example, send one page to the selective call receiver from the information of cell phone transmission.Send as one page by writing information on digitalizer 552 and this information, can send alphanumeric information by page or leaf to the selective call receiver.Therefore, can on digitalizer 552, import name, instruction and information and send by page or leaf.Hand-written information also can be to make cell phone finish the instruction or the conventional letter of particular task.
In this way, cellular battery can be modified, so that receive hand-written information or instruction from the user, the user uses pen entering handwritten information on digitalizer.In case information is transfused to, this information just is shown and is proofreaied and correct by the user.The information of proofreading and correct can be used to start page info or to the stored information note.But inputting characters by handwriting or conventional letter are also finished particular task as the designated command cell phone.Therefore, the user is not limited to the information or the operation keyboard of pre-stored (fixing), key on the keyboard is too little, by itself being not easy input information in cell phone, because improved battery comprises digitalizer and hand-written discrimination system, the user is selected and input information, message and instruction easily.In addition, because the user can just can use CALLERID to its message note in addition
TMThe call identifying person, thus obtain telephone number and this telephone number and caller's name is connected, answer or pick up (pick-up) so that determine whether its cellular calling.
The present invention has carried out explanation as above according to most preferred embodiment.Other embodiment of the present invention can be the part of digitalizer 552 as cell phone itself.Recognition device 560 also can be placed in the cell phone.For existing telephone, above-mentioned most preferred embodiment is desirable, thereby because the user can add handwriting recognition by the battery of replacing phone with the battery 106 with digitalizer 552 and recognition device 560 simply in existing phone.But new phone can design more easily by hand-write recognition function is concentrated to place in the phone.
Fig. 7 represents communicator 700, as the second embodiment of the present invention, itself has the handwriting recognition ability, wherein has the communicator that generally comprises transmitter and receiver, it can be the device that cell phone or other communicator communicate, for example radio, cell phone or pager.Communicator 700 has keyboard 702 and digitalizer 704.Digitalizer 704 shows in a usual manner the information that is generally shown by the cell phone of routine by the number of keyboard 702 inputs and information and other.In addition, digitalizer 704 receives the service recorder pen or is used for digitalizer 704 is write the hand-written character of other device of character to the surface input of digitalizer 704.To digitalizer the see before most preferred embodiment of face of the explanation of the method for digitalizer 704 input informations for example.
Referring to Fig. 5 and Fig. 7, for second embodiment, the recognition device of communicator 700 or identifier are the microcomputers (seeing Fig. 5 element 510) of communicator 700.The identification software of writing is stored in the memory (Fig. 5 516), and by microcomputer (510) visit with carry out.In addition, one group or several groups of characters are stored in the memory (516).When hand-written character was transfused to and is digitized device 704 and receives, microcomputer (510) was by instruction or automatically be activated, thereby operated in the identification software of writing of storage in the memory (516).The write data of the character that microcomputer (510) calculating expression is write, and compare the characters of write data and described one group or several groups storage, thus find one or several and the immediate character of the character that writes.Then, microcomputer (510) shows to the immediate character of digitalizer 704 outputs.In addition, also make the user see the result that identification is handled, also allow the user that the result is edited.In a second embodiment, microcomputer (510) is exported some characters to digitalizer 704, and has only immediate character to be shown and to import without the user again.Under edit pattern, the user can selectively see other character by microcomputer (510) input, thereby selects other character to replace by write character that identification software is selected and that show on digitalizer 704.If microcomputer is not exported the suitable character in the character list of selecting always, the user also can select to import a different character by digitalizer 704 being write character.
The explanation of the second embodiment of the present invention concentrates in the single character recognition so far, yet second embodiment can easily expand to word identification according to write identification software and the memory capacity of storage in memory (516), perhaps even the identification of sentence and instruction.Should be noted that second embodiment of the invention is not limited to any specific language.In fact, second embodiment also is applicable to Chinese character recognition, and this moment, the keyboard input bothered very much.
According to the above-mentioned explanation of second embodiment, user's service recorder pen or other the device inputting characters by handwriting that can on the screen of digitalizer 704, describe.This device is available to be handed or otherwise describes on screen.Hand-written character also can input to microcomputer (510) by the electricity consumption submode.For example, can be by fax or other electronic method to communicator 700 inputting characters by handwriting.At this moment handwriting recognition software should be activated in microcomputer (510), and shows the information of identification on digitalizer 704.Then, this information can be by editor, send (resent) again, is used to start communicator 700 or is stored.
Can not only be identified in the character, word or the sentence that show on the digitalizer, they can also be handled by microcomputer (510) according to many functions.The purposes of character, word or sentence of identification can comprise and starts any one group of instruction, sends described character, word or sentence to another source, stores described character, word or sentence in memory, or shows as mentioned above or edit described character, word or sentence.
Digitalizer 704 needn't be positioned at the viewing area of communicator 700.Other position comprises " triggerings " (flip) position of triggering phone (flip-phone), or as on the described battery of above most preferred embodiment or with communicator that communicator 700 links to each other on.In addition, recognition device is not limited to the microcomputer in the communicator (700), and can be the independent device in the communicator (700).