CN104417071A - Memory bank and imaging box - Google Patents

Memory bank and imaging box Download PDF

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Publication number
CN104417071A
CN104417071A CN201310421363.8A CN201310421363A CN104417071A CN 104417071 A CN104417071 A CN 104417071A CN 201310421363 A CN201310421363 A CN 201310421363A CN 104417071 A CN104417071 A CN 104417071A
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China
Prior art keywords
memory
information
imaging device
box chip
instruction
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CN201310421363.8A
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CN104417071B (en
Inventor
丁励
刘卫臣
陈浩
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Jihai Microelectronics Co ltd
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Apex Microelectronics Co Ltd
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Priority to CN201310421363.8A priority Critical patent/CN104417071B/en
Priority to PCT/CN2014/075610 priority patent/WO2015032205A1/en
Publication of CN104417071A publication Critical patent/CN104417071A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/40Details not directly involved in printing, e.g. machine management, management of the arrangement as a whole or of its constitutive parts

Abstract

The invention provides a memory bank which can be mounted in imaging equipment. The memory bank at least comprises a first memory and a second memory, wherein an instruction of the imaging equipment is judged and analyzed by the first memory, call information can be timely interpolated into a communication bus according to the access address and access byte number in the instruction, second information can be timely transmitted to the imaging equipment by the second memory according to the interpolated call information, control of the imaging equipment is ingeniously avoided, and the instruction of the imaging equipment can be smoothly and cooperatively responded between the memories under the condition that communication between the imaging equipment and the memory bank is not interfered.

Description

Memory set and imaging cartridge
Technical field
The invention belongs to printing imaging field, particularly relate to memory set and imaging cartridge.
Background technology
Imaging device at least comprises thermal transfer imaging equipment, ink-jet image forming apparatus and electrophotographic image forming (such as laser printer and LED printer).Imaging device, in the process of imaging, needs to consume a large amount of colouring agents, after ruing out of, also needs these colouring agents supplementary.Therefore, in imaging device, removable imaging cartridge is often installed, in imaging cartridge, is mounted with colouring agent.After the colouring agent in imaging cartridge runs out of, user can buy new imaging cartridge and be installed in imaging device and go.In recent years, in order to manage the needs of imaging cartridge, on imaging cartridge, being also provided with an information-storing device, is also box chip.In box chip, generally store the information about imaging cartridge, such as date of manufacture, colorant type/color, manufacturer, authentication information, colouring agent capacity and colouring agent surplus etc.
Existing imaging device, print from original monochrome, be upgraded to multi-color printing, be therefore often provided with multiple imaging cartridge in an imaging device, it holds the colouring agent of dissimilar/color separately.Therefore, for adapting to imaging device, need to configure multiple box chip.These box chips equally also store the above-mentioned many kinds of parameters mentioned.In these parameters, have and multiplely change information and unmodifiable information, manufacturer as escribed above and colouring agent capacity information just belong to immutable information, can see, if do not carry out difference to information just to store, then need the programmable storage of larger capacity, cost can be higher.For this reason, the information in box chip can be sorted out, changeable information is stored in programmable memory, and unmodifiable information is stored in read-only storage, because read-only memory structure is simple, cost is low, thus can reduce the cost of box chip.Because imaging device is main frame, and box chip is client computer, rule of communication between imaging device and box chip and sequential are controlled by imaging device, but by after information categorization, the instruction of the response imaging device that how to cooperate between programmable storage with read-only storage does not also have fairly perfect way at present.Be not limited only to the cooperation between programmable storage and read-only storage, for the cooperation of the instruction of response imaging device also exists same problem between other identical types or different kinds of memory.
Summary of the invention
For improving the cooperation between two memories, the invention provides the memory set that can be installed in imaging device, described memory set at least comprises first memory and second memory, described first memory and second memory are connected to imaging device by same communication bus, this communication bus comprises power line, clock line and data wire, imaging device sends instruction by data wire to first memory and second memory, it is characterized in that, first memory storage box chip identification information and the first information, the first information stores according to the addressing rule preset, described second memory storage box chip identification information and the second information, second information also stores according to the addressing rule preset, and second the access address of information be associated with the access address of the first information, whether first memory is identical with the box chip identification information that first memory stores for judging the box chip identification information in the instruction that receives, if identical, from the instruction received, then obtain access address and access byte number, whether second memory is identical with the box chip identification information of second memory for judging the box chip identification information in the instruction that receives, if identical, then marks second memory,
Described first memory is also for judging the second the information whether access address that gets and access byte number are accessed second memory and stored, if, then before needs second memory sends the second information, communication bus inserts call information, and described call information is different from the message form communicated between imaging device and first memory;
Described second memory also for judging whether communication bus inserts call information, if so, then sends second information by data wire to imaging device when second memory is labeled.
Present invention also offers imaging cartridge, it is characterized in that, described imaging cartridge is provided with above-mentioned first memory and second memory.
Memory set provided by the invention and imaging cartridge, judged by first memory and analyze the instruction of imaging device, according to the access address in instruction and access byte number, can in time by inserting call information on communication bus, second memory can send the second information to imaging device in time according to the call information of this insertion, avoid the control of imaging device dexterously, when can communicate with memory set when not interfering with imaging device, the instruction of the response imaging device that smoothly cooperates between memory.
Accompanying drawing explanation
Shown in Fig. 1 is the partial data schematic diagram of original-pack box chip-stored;
Shown in Fig. 2 is the partial data schematic diagram that memory set provided by the invention stores;
Shown in Fig. 3 be imagination original-pack box chip memory store information MAP table;
Shown in Fig. 4 is the communication bus sequential chart carrying out between imaging device with box chip communicating;
Shown in Fig. 5 is the information MAP table that first memory of the present invention stores;
Shown in Fig. 6 is the information MAP table that second memory of the present invention stores;
Shown in Fig. 7 is a kind of method inserting call information on communication bus;
Shown in Fig. 8 is the another kind of method inserting call information on communication bus;
Shown in Fig. 9 is a kind of method flow diagram changing box chip provided by the invention;
Shown in Figure 10 is the way of the concurrent carry information of signal of first memory monitor data line.
Detailed description of the invention
Below in conjunction with accompanying drawing, be described in detail to various aspects of the present invention, so that each advantage of the present invention to be described.
Embodiment one
The structure of the memory set that the present embodiment provides and box chip of the prior art is distinguished and can be described by Fig. 1 and Fig. 2.Shown in Fig. 1 is the partial data schematic diagram of original-pack box (OEM) chip-stored, in figure, original-pack box chip A and original-pack box chip B stores the first information and the second information, except these two kinds of information, also may store other information (not shown)s, and original-pack box chip A and original-pack box chip B is connected to imaging device by same communication bus.Then original-pack box chip at least needs the memory space storing the first information and the second information.On the contrary, as shown in Figure 2, memory set provided by the invention, its first memory at least comprised stores the first information, and second memory stores the second information.Because first memory and second memory are connected to imaging device by same communication bus, when imaging device needs the access first information, can be provided to imaging device by first memory, when imaging device needs access the second information, can be provided to imaging device by second memory, imaging device can not point out fault because of access less than required information.
Aforesaid original-pack box chip, refer to and designed and the box chip sold with imaging cartridge by the manufacturer of imaging device, box chip generally comprises one for storing the memory of data, these original-pack box chip-stored in a large number about the data of imaging cartridge, such as date of manufacture, colorant type/color, manufacturer, identification sequences information, number of print pages, colouring agent capacity and colouring agent surplus etc.In these data, as date of manufacture, manufacturer, colouring agent capacity and identification sequences information etc. all belong to a read message of imaging cartridge, imaging device can not rewrite these read messages in the process being printed as picture; And number of print pages and colouring agent all can along with being printed as the process of picture and the rewritten information changed.
The memory set that the present embodiment provides, can for the feature of these data, be stored into respectively again in different memories after classification, changeable information is stored in programmable memory, and unmodifiable read message is stored in read-only storage or the memory of the simple and erasable circuit complexity of reading circuit, because read-only memory structure is simple, cost is low, thus can reduce the cost of box chip.Programmable storage for storing information in memory set of the present invention can adopt common nonvolatile memory, such as EPROM, EEPROM, FLASH, ferroelectric memory, phase transition storages etc., also can adopt volatile memory to add the scheme of power supply, such as SRAM+ battery or electric capacity, DRAM+ battery or electric capacity; And read-only storage is except adopting the above-mentioned memory enumerated, can also be write primary memory (One T imeProgrammable memory, OTP).
Because each memory does not need all to store both the first information and the second information, therefore can store with the memory compared with low capacity, and can carry out sorting out rear storage according to the type of information in original-pack box chip.When the first information is aforesaid read message, also namely can not rewrite data, and the second information be aforesaid can rewrite data time, be appreciated that the first information and the second information are all a kind of set, first memory can adopt not rewritable memory, and second memory adopts rewritable memory, because not rewritable memory construction is simple, low price, the cost of whole memory set can reduce further.In addition, the first information also can be the identification sequences information in a read message, second information is other information except identification sequences information, under such circumstances, first memory is used for imaging device certification, need the Logical processing unit of more complicated, and second memory is only for storing data, do not need complicated Logical processing unit, when each original-pack box chip needs complicated Logical processing unit, memory set of the present invention only needs one of them to possess complicated Logical processing unit, and remaining only needs to possess the ability storing data, therefore can reduce and use complicated Logical processing unit, thus the cost of whole memory set can be reduced.
For ease of understanding content of the present invention, suppose that the information of the memory storage of original-pack box chip is as shown in the mapping table of Fig. 3 below.The first information is stored in 01 to address, address 10, second information and is stored in address 11 to 20, and the information of each address is a byte.Because all original-pack box chips all hang on same communication bus, in order to identify each other, each box chip has an independently box chip identification information (Ident ificat ion, ID), and is stored in address 00.Box chip identification information also can be regarded as the identifying information of imaging cartridge, because the imaging cartridge of multiple loading different colours/types of colorants is releasably attached on imaging device, box chip identification information is mainly used to distinguish different imaging cartridges, and that is box identifying information can be represented by the color/type of colouring agent.
Imaging device shown in Fig. 4 and the communication bus sequential chart carrying out between box chip communicating, this communication bus comprises clock line (CLK), serial data line (SDA) and power line (VCC), the instruction that imaging device is sent by serial data line (SDA) includes operation information, box chip id, access address and access byte number, also may also comprise other related datas.When the box chip id in the decision instruction of box chip is identical with the box chip id that self stores, confirm that instruction sends to oneself, then according to operation information (reading or write), access address and access byte number, process accordingly.
As shown in Figure 2, the invention provides the memory set that can be installed in imaging device, described memory set at least comprises first memory and second memory, and described first memory and second memory are connected to imaging device (not shown) by same communication bus.As shown in Figure 4, this communication bus comprises power line, clock line and data wire, and imaging device sends instruction by data wire to first memory and second memory.After the first information in Fig. 3 and the second information are stored into two memories respectively, still adopt same addressing rule, as shown in Figure 5 and Figure 6.First memory storage box chip identification information and the first information, the first information stores according to the addressing rule preset, this addressing rule preset is the rule that information is stored into concrete storage address, such as, from low order address 01, stores the first information in Fig. 5, until high address 10.Second memory storage box chip identification information and the second information, second information also stores according to the addressing rule preset, and second the access address of information be associated with the access address of the first information, or, as stored the second information in Fig. 6 from relative low order address 11, until the address of high address 20, second information is after the address of the first information, certainly, the address relationship of the first information and the second information is not limited thereto.
Whether first memory is identical with the box identifying information that first memory stores for judging the box chip identification information in the instruction that receives, if identical, then from the instruction received, obtains access address and access byte number.According to the access address obtained and access byte number, the range of information that instruction specifically will access can be learnt, such as suppose that access address is 02, access byte number is 3 bytes, then the information that presentation directives specifically will access is the data of totally 3 bytes to access address 04 from access address 02.
Whether second memory is identical with the box identifying information that second memory stores for judging the box chip identification information in the instruction that receives, if identical, then marks second memory.Carry out mark to second memory and can take multiple way, a kind of way stores a label information in second memory.When the box chip identification information that second memory judges in the instruction received is not identical with the box identifying information that second memory stores, remove label information; Or label information, in power line power down or when re-powering, is removed by second memory.
Described first memory is also for judging the second the information whether access address that gets and access byte number are accessed second memory and stored, if, then before needs second memory sends the second information, communication bus inserts call information, and described call information is different from the message form communicated between imaging device and first memory.Obviously, if the information that first memory and second memory store as shown in Figure 5 and Figure 6, in the instruction that first memory receives, access address is 08, and access byte number is 2 bytes, then can not access the second information that second memory stores; If access address is 08, and to access byte number be 4 bytes, then need to access the address 11 that second memory stores, also namely need access second information.After first memory sends access address and accesses the first information corresponding to byte number, second memory also should continue to send access address and access the second information corresponding to byte number, owing to being connected by communication bus between first memory and second memory, first memory just needs before second memory sends the second information, tells when second memory should start to send the second information by communication bus.Present invention employs the way inserting call information on communication bus.
The sequential chart of proper communication is carried out as shown in Figure 4 between imaging device and first memory, communicate to not affect between imaging device with first memory, the method that the present invention inserts call information on communication bus has multiple, and a kind of method is voltage drop method as shown in Figure 7.In Fig. 7, suppose that the information that first memory sends on the data line is SDA1, the information that second memory sends is SDA2, then first memory is before needs second memory sends the second information, at clock line (CLK) upper insertion call information Δ V, call information Δ V is a voltage pulsation among a small circle, and appears in the clock cycle of last Bit data that first memory sends.First memory produces call information Δ V and by reducing the resistance between clock end and earth terminal in the short time, can discharge larger electric current, thus reducing in clock line (CLK) short time, and then fast quick-recovery is normal.
Communication bus inserts call information and can also adopt method as shown in Figure 8, different from the call signal Δ V in Fig. 7, the call signal Δ V in Fig. 7 at least continues half clock cycle, and the call signal duration in Fig. 8 is less than half clock cycle.First memory is before needs second memory sends the second information SDA2, clock line (CLK) inserts call information, call information is also a voltage pulsation among a small circle, and appears in the clock cycle of last Bit data that first memory sends.Call information is also not limited only to the step-down among a small circle in figure, also can be boost among a small circle.Call information also can produce on other communication bus, such as, on power line (VCC) or data wire (SDA).Except the change of the signal amplitude aspect shown in Fig. 7 and Fig. 8, can also be the change of signal duration, such as, when needs insert call information, normal waveform duration is shortened among a small circle or extends.
Described second memory is also for judging whether bus inserts call information, if, then send second information by data wire to imaging device when second memory is labeled, that is second memory is when being labeled, and whether monitoring communications bus can there will be above-mentioned call information.For collecting the call information on communication bus, second memory needs to arrange sample circuit and other relevant circuit toward contact.As previously described, when second memory judges communication bus to insert call information, also judge whether self is labeled, if these two conditions are all satisfied, then sent the second information of second memory storage to imaging device by data wire.As elucidated before, if do not need second memory to send the second all information to imaging device, then first memory also needs, before second memory should stop transmission information, to insert new call information to communication bus, to notify that second memory stops continuing transmission second information.
For reducing energy consumption, also can only when second memory be labeled, second memory just starts whether monitoring communications bus occurs above-mentioned call information.And second memory above-mentioned two conditions are when all meeting, clock cycle that and then call information occurs the second information can be sent; Also can consider the response speed of second memory, first memory shifts to an earlier date N (N is more than or equal to 1) the individual clock cycle and is inserted in communication bus by call information, and second memory N number of at this be just start after the clock cycle to send the second information.
Visible, memory set provided by the invention, judged by first memory and analyze the instruction of imaging device, according to the access address in instruction and access byte number, can in time by inserting call information on communication bus, second memory can send the second information to imaging device in time according to the call information of this insertion, avoid the control of imaging device dexterously, when can communicate with memory set when not interfering with imaging device, the instruction of the response imaging device that smoothly cooperates between first memory and second memory.
The function combined due to the first memory in the present embodiment and second memory is equivalent to existing box chip, so the memory set in the present embodiment also can be collectively referred to as a box chip.As required, above-mentioned first memory and second memory can be separately positioned on independently on two pieces of circuit substrates, also first memory and second memory can be arranged on same circuit substrate.When first memory and second memory are separately positioned on different circuit substrates, whether can there is fault according to memory and change one piece of circuit substrate wherein selectively, and do not need replacement two memories and cause available wasted memory.Thus realize the object of saving maintenance cost.
Embodiment two
Present invention also offers imaging cartridge, described imaging cartridge is used for being installed in imaging device, it is characterized in that, described imaging cartridge is provided with the memory set in above-described embodiment, i.e. first memory and second memory.
Embodiment three
The present invention also provides a kind of method changing box chip.Be applicable to the industry such as recycling imaging box and regeneration (Reconstruction) imaging cartridge.By the imaging cartridge that recovery approach obtains, the box chip that it has generally been provided with waste and old, the colouring agent in imaging cartridge also runs out of.Therefore, imaging cartridge is being carried out to cleaning and again after filling colouring agent, also needing to change the box chip on imaging cartridge, reclaiming or the process of regeneration to complete.The present embodiment can be considered to obtain memory set with in above-described embodiment one, replaces box chip waste and old on multiple imaging cartridge.The method as shown in Figure 9.
Step S21, takes off original box chip from imaging cartridge;
Step S22, the first memory in installation above-described embodiment and second memory are on imaging cartridge.When first memory and second memory are separately positioned on independently on circuit substrate, then need installation two pieces of circuit substrates; When first memory and second memory are all arranged on same circuit substrate, one piece of circuit substrate conventionally can be only installed just passable.
Visible, adopt the method for the replacing box chip of the present embodiment, the imaging cartridge cost of recovery or regeneration can be made lower.
Embodiment four
In above-described embodiment one, first memory will judge box chip identification information in the instruction received and obtain access address and access byte number according to judged result.Second memory also will judge box chip identification information in the instruction received and make marks according to judged result.For making second memory more simple, also can configure second memory and no longer judging the instruction that imaging device sends, but the data variation within the single clock cycle on time delay monitor data line, with regard to automatic, data are sent when meeting pre-conditioned.
First memory according to the result of decision instruction, when imaging device need access be the first information of first memory time, then first memory normal execution this instruction the same as original-pack box chip; And what determine that imaging device needs access when first memory is the second information of second memory, then first memory no longer sends the first information.And the information change situation of second memory always on monitor data line, determine whether needing transmission second information.As shown in Figure 10, the SDA1 of the transmission on the data line information of first memory, the signal rising edge place of second memory within the single clock cycle starts monitoring and timing, judge whether data wire (SDA) there is information in transmission, timing arrives preset time T 1, if second memory confirms do not have signal in this time in transmission, then after preset time T 1, second information SDA2 is sent on data wire.
Due in whole process, second memory does not need the instruction responding imaging device, and second memory can design simpler.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by programmed instruction or relevant hardware.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (5)

1. can be installed to the memory set in imaging device, described memory set at least comprises first memory and second memory, described first memory and second memory are connected to imaging device by same communication bus, this communication bus comprises power line, clock line and data wire, imaging device sends instruction by data wire to first memory and second memory, it is characterized in that
First memory storage box chip identification information and the first information, the first information stores according to the addressing rule preset, described second memory storage box chip identification information and the second information, second information also stores according to the addressing rule preset, and the access address of the second information is associated with the access address of the first information;
Whether first memory is identical with the box chip identification information that first memory stores for judging the box chip identification information in the instruction that receives, if identical, then from the instruction received, obtains access address and access byte number;
Whether second memory is identical with the box chip identification information that second memory stores for judging the box chip identification information in the instruction that receives, if identical, then marks second memory;
Described first memory is also for judging the second the information whether access address that gets and access byte number are accessed second memory and stored, if, then before needs second memory sends the second information, communication bus inserts call information, and described call information is different from the message form communicated between imaging device and first memory;
Described second memory also for judging whether communication bus inserts call information, if so, then sends second information by data wire to imaging device when second memory is labeled.
2. memory set according to claim 1, is characterized in that, the described first information to rewrite information, and described second information to rewrite information.
3. memory set according to claim 2, is characterized in that, described first memory comprises rewritable memory, and the described first information is stored in described rewritable memory; Described second memory comprises not rewritable memory, in not rewritable memory described in described second information is stored in.
4. imaging cartridge, is characterized in that, described imaging cartridge be provided with as arbitrary in claims 1 to 3 as described in memory set.
5. can be installed to the memory set in imaging device, described memory set at least comprises first memory and second memory, described first memory and second memory are connected to imaging device by same communication bus, this communication bus comprises power line, clock line and data wire, imaging device sends instruction by data wire to first memory and second memory, it is characterized in that
First memory storage box chip identification information and the first information, described second memory stores the second information; First memory judges box chip identification information in the instruction received and obtains access address and access byte number according to judged result;
Second memory does not judge the instruction that imaging device sends, but the change at signal rising edge place on monitor data line in the single clock cycle, if do not monitor Signal transmissions in Preset Time, then after Preset Time, the second information is sent on data wire.
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