CN105324809A - Calibration device and image display device with calibration function - Google Patents
Calibration device and image display device with calibration function Download PDFInfo
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- CN105324809A CN105324809A CN201480030075.2A CN201480030075A CN105324809A CN 105324809 A CN105324809 A CN 105324809A CN 201480030075 A CN201480030075 A CN 201480030075A CN 105324809 A CN105324809 A CN 105324809A
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- data
- receiving trap
- intensity
- clock
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
- G09G5/008—Clock recovery
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0693—Calibration of display systems
Abstract
Provided are a calibration device for optimizing transmission characteristics of each line of a display module (in particular a COG-type display module), and a display module having such a calibration device mounted therein. A transmission device (1) having: a first transmission unit (11) for transmitting data to a reception device (41) via a first line (31); a data generation unit (13) for generating data to be transmitted by the first transmission unit (11); and a calibration engine (15) for controlling the calibration signal generated by the data generation unit (13), the calibration engine (15) controlling the calibration signal generated by the data generation unit (13) such that the timing of the calibration signal is displaced by a prescribed timing amount in relation to a clock bit embedded in the data.
Description
Technical field
The present invention is about the image display device of calibrating installation and attached calibration function.
Background technology
Disclose ambetti in Japanese Unexamined Patent Publication 2009-047877 publication and engage (COG) type display module.
[prior art document]
(patent documentation)
(patent documentation 1) Japanese Unexamined Patent Publication 2009-047877 publication
Summary of the invention
(invention institute for solution problem)
COG type display module is configured with many group drive units and distribution on the glass substrate.Distribution on glass substrate is higher than the distribution on general PCB due to resistance, so the signal quality deterioration produced because of distribution is comparatively large, and has the problem that the characteristic deviation of each distribution is large.
Therefore, object of the present invention makes the transmission characteristic of each distribution in display module (particularly COG type display module) all obtain optimized calibrating installation and carry to be provided with the display module of this calibrating installation providing.
(solving the means that problem uses)
The present invention is based on conveyer (timing controller) substantially, and according to the invention that following viewpoint is done, namely, the transfer system controlling to include driver through grasp transmission status is overall, mode by this, even if distribution characteristic has partially different situation, also can easily adjust.Generally speaking, because COG type display module has had distribution and driver, therefore suitable driving can be guaranteed through the adjustment carrying out executive system in timing controller side.In this system, timing controller transmits calibration kenel with high-speed channel.Then, the data received by driver with low speed channel is sent back to.Timing controller can receive this data, and judges that driver receives situation by the calibration engine of timing controller.Then, calibration engine can according to parsing situation, carries out the intensity of timing controller side, regularly or the adjustment of the eqalizing cricuit of drive-side or the timing adjustment of CDR.
A first aspect of the present invention is about the conveyer 1 with the 1st transport unit 11, data generating unit 13 and calibration engine 15.The example of this conveyer 1 is the timing controller being used in image display device etc.
1st transport unit 11 is the Component units in order to data to be transmitted to receiving trap 41 via the 1st distribution 31.
Data generating unit 13 is the Component units of the data that generation the 1st transport unit 11 transmits.
Calibration engine 15 is the Component units of the calibrating signal in order to control data generating unit 13 generation.The calibrating signal that calibration engine 15 meeting control data generating unit 13 produces, makes calibrating signal, to the clock bit being embedded in data, a predetermined timing amount is moved in timing.The data generating unit 13 that have received the instruction that calibrating signal controls can with suitable timing to produce calibrating signal.The amount that predetermined timing amount finger receiving apparatus 41 can sample the marginal portion of data, concrete example is 0.5 bit amount.
The preferred example of this conveyer is for have the 1st acceptance division 17 further, and it receives the data that receiving trap 41 receives.
Secondly, calibration engine 15 has timing adjustment instruction generating unit 21.
Timing adjustment instruction generating unit 21 is the Component units producing timing adjustment instruction, and this timing adjustment instruction is then in order to adjust the timing of the calibrating signal that data generating unit 13 produces.
And data generating unit 13 adjusts the timing of data according to the timing adjustment instruction accepted from timing adjustment instruction generating unit 21.
The preferred example of this conveyer, for have the 1st intensity adjustment part 23 further, is calibrated engine 15 simultaneously and is had edge analysis unit 19 and the first intensity adjustment instruction generating unit 25 again.Edge analysis unit 19 is when the 1st acceptance division 17 receives the information of associated corrective signal, the marginal portion of received calibrating signal is carried out the Component units of resolving.
1st intensity adjustment part 23 is the Component units in order to adjust the data intensity that the 1st transport unit 11 transmits.
Intensity adjustment instruction generating unit 25 is the marginal portion information of calibrating signal of resolving according to edge analysis unit 19, produces the Component units having the 1st intensity of the intensity that will adjust about the 1st intensity adjustment part 23 to adjust instruction.
And the 1st intensity adjustment part 23 adjusts the data intensity of the 1st transport unit 11 transmission according to the 1st intensity adjustment instruction from the 1st intensity adjustment instruction generating unit 25.
2nd aspect of the present invention is about the transmission receiving trap including previously illustrated conveyer, receiving trap 41 and the 2nd distribution 61.
Moreover receiving trap 41 has the 2nd acceptance division 43, storage part 45 and the 2nd transport unit 47.
2nd acceptance division 43 is the Component units in order to receive via the data of the 1st distribution 31.
The Component units of data of storage part 45 for receiving in order to data on file acceptance division 43.
The Component units that 2nd transport unit 47 transmits to the 1st acceptance division 17 via the 2nd distribution 61 for the data stored by storage part 45.
The better pattern of the present invention the 2nd aspect has the demoder portion 48 whether data that differentiation the 2nd acceptance division 43 receives is calibrating signal again for receiving trap.
The better pattern of the present invention the 2nd aspect is that receiving trap 41 has the 2nd intensity adjustment part 49 and clock – data recovery portion 51 again.Moreover the calibration engine 15 of conveyer 1 has the 2nd intensity adjustment instruction generating unit 27 and CDR adjustment part 29.
2nd intensity adjustment part 49 is the Component units of the intensity in order to adjust the data that the 2nd acceptance division 43 receives.
The Component units of Shi Zhong – data recovery portion 51 for clock and data being restored in the data that receives from the 2nd acceptance division 43.
The marginal portion information of the calibrating signal that the 2nd intensity adjustment instruction generating unit 27 is resolved according to edge analysis unit 19 and produce the Component units of the intensity adjustment instruction of the 2nd intensity adjustment part 49.
CDR adjustment part 29 be produce Shi Zhong – data recovery portion 51 data-clock between skew adjustment instruction Component units.
Moreover the 2nd intensity adjustment part 49 adjusts the intensity of the data that the 2nd acceptance division 43 receives according to the intensity adjustment instruction via the 1st transport unit 11 and the 2nd acceptance division 43.
In addition, Shi Zhong – data recovery portion 51 according to skew adjustment instruction between the data-clock via the 1st transport unit 11 and the 2nd acceptance division 43 data clock recovery that the 2nd acceptance division 43 is received.
3rd aspect of the present invention is about a kind of image display device, and it has: above-mentioned any one transmit receiving trap and carry out the image displaying part 71 that image is shown as object with the data received according to the 2nd acceptance division 43.
(effect of invention)
The present invention can provide and make the transmission characteristic of each distribution in display module (particularly COG type display module) all obtain optimized calibrating installation and carry the display module being provided with this kind of calibrating installation.
Accompanying drawing explanation
Fig. 1 is the explanation calcspar that the present invention transmits receiving trap;
Fig. 2 is the calcspar of the display conveyer of embodiment and the formation of receiving trap;
Fig. 3 is the conveyer transmission of display from embodiment, and with the format chart of the data of receiving trap reception;
Fig. 4 is that display is from the conveyer transmission the present embodiment and with the figure of the data of receiving trap reception;
Fig. 5 is the physical data that receives from the conveyer transmission of embodiment and with receiving trap of display and the analysis of data timing comparison diagram at the sampling clock of receiving trap inside;
Fig. 6 is the timing diagram that data, the storage of calibration data of storage part of receiving trap, mat transport unit that display transmits to receiving trap from conveyer transmit the Hui Xun of data and the appropriate section by control part control receiving trap;
Figure (a) display of Fig. 7 judge the pre-equalization of conveyer, receiving trap etc. the analysis of data summary of the mistake changed and deficiency, figure (b) display relative to the pre-equalization of conveyer and receiving trap etc. the mistake changed and deficiency, and the graph of a relation of sampling clock (representing with arrow in figure) in the analysis of data of the passivation because of transfer path and clock – data recovery portion;
Fig. 8 be display carry out the pre-equalization of conveyer, receiving trap etc. change adjustment time, the corresponding table of the analytical sampling data that the Shi Zhong – data recovery portion of mat receiving trap samples and the judgement of the control part of conveyer;
Fig. 9 is that the method explanation that control part sentences the data in timing watch – data recovery portion and the phase relation of sampling clock is schemed;
Figure 10 shows the data in Shi Zhong – data recovery portion and the skew between sampling clock when adjusting, the corresponding table of the data that samples by analysis that the Shi Zhong – data recovery portion of mat receiving trap samples and the judgement of the control part of conveyer;
Figure 11 shows the overall flow figure of the automatic calibration of embodiment;
Figure 12 is that in embodiment, conveyer mat control part performs the data adjustment in the Shi Zhong – recovery portion of receiving trap, offsets the process flow diagram of adjustment between clock;
Figure 13 be in embodiment the conveyer mat control part adjustment pre-equalization intensity of conveyer and receiving trap etc. change the process flow diagram of intensity;
Figure 14 is the production method figure of the reference clock that display mat phase shift portion exports to trigger;
Figure 15 is the implementation method figure changing pre-equalization intensity in the impact damper of display conveyer; And
Figure 16 is the implementation method figure changing intensity such as gradeization in the input buffer portion of display receiving trap.
Embodiment
(working of an invention form)
Fig. 1 is the explanation calcspar that the present invention transmits receiving trap.
As shown in Figure 1, conveyer 1 of the present invention has: the 1st transport unit 11, data generating unit 13 and calibration engine 15.The example of this conveyer 1 is the timing controller being used in image display device etc.
1st transport unit 11 is Component units data transmitted to receiving trap 41 via the 1st distribution 31.
Data generating unit 13 is the Component units of the data that generation the 1st transport unit 11 transmits.
Calibration engine 15 is the Component units of the calibrating signal in order to control data generating unit 13 generation.The calibrating signal that calibration engine 15 pairs of data generating units 13 produce controls, and makes calibrating signal, to the clock bit being embedded in data, a predetermined timing amount is moved in timing.Namely the data generating unit 13 receiving calibrating signal steering order produces calibrating signal with suitable timing.The amount sampled can be carried out in the marginal portion of aforesaid data by predetermined timing amount finger receiving apparatus 41, and concrete example is 0.5 bit amount.
The preferred example of this conveyer is for having the 1st acceptance division 17 accepting the data that receiving trap 41 receives further.
Moreover calibration engine 15 has timing adjustment instruction generating unit 21.As described later, calibrate engine 15 and also can be provided with edge analysis unit 19.
Timing adjustment instruction generating unit 21 is the Component units producing timing adjustment instruction, and this timing adjustment instruction is for the purpose of the timing adjusting the calibrating signal of data generating unit 13 generation, uses the reception situation analyzed at conveyer 41.The analysis result that timing adjustment instruction generating unit 21 also can provide according to edge analysis unit 19 and adjust the timing of calibrating signal.
In addition, data generating unit 13 adjusts the timing of data according to the timing adjustment instruction accepted from timing adjustment instruction generating unit 21.
In the better example of this conveyer, then there is the 1st intensity adjustment part 23, calibrate engine 15 simultaneously and there is edge analysis unit 19 and intensity adjustment instruction generating unit 25 again.1st intensity adjustment part 23 is the Component units in order to adjust the data intensity that the 1st transport unit 11 transmits.The Component units of edge analysis unit 19 for resolving the marginal portion of accepted calibrating signal when the 1st acceptance division 17 accepts calibrating signal relevent information.The marginal portion information of the calibrating signal that intensity adjustment instruction generating unit 25 is resolved according to edge analysis unit 19, produces the Component units that 1st intensity relevant to the intensity that the 1st intensity adjustment part 23 adjusts adjusts instruction.
Next, the 1st intensity adjustment part 23 can adjust instruction according to the 1st intensity carrying out self-strength adjustment instruction generating unit 25 and adjust the data intensity of the 1st transport unit 11 transmission.
2nd aspect of the present invention is about the transmission receiving trap comprising previously described conveyer, receiving trap 41 and the 2nd distribution 61.
Wherein, receiving trap 41 has the 2nd acceptance division 43, storage part 45 and the 2nd transport unit 47.
2nd acceptance division 43 is the Component units data via the 1st distribution 31 received.
The Component units of data of storage part 45 for receiving in order to data on file acceptance division 43.
The Component units that 2nd transport unit 47 transmits to the 1st acceptance division 17 via the 2nd distribution 61 for the data stored by storage part 45.
The preferred aspect of the present invention the 2nd aspect has to differentiate that whether data that the 2nd acceptance division 43 receives is the demoder portion 48 of calibrating signal again for receiving trap.
The preferred aspect of the present invention the 2nd aspect is that receiving trap 41 has the 2nd intensity adjustment part 49 and clock – data recovery portion 51 again.In addition, the calibration engine 15 of conveyer 1 has the 2nd intensity adjustment instruction generating unit 27 and CDR adjustment part 29.
The Component units that 2nd intensity adjustment part 49 adjusts for the data intensity received the 2nd acceptance division 43.
The Component units of Shi Zhong – data recovery portion 51 for clock and data being restored in the data that receives from the 2nd acceptance division 43.
The intensity that the information that 2nd intensity adjustment instruction generating unit 27 is the marginal portion of calibrating signal of resolving according to edge analysis unit 19 produces the 2nd intensity adjustment part 49 adjusts the Component units of instruction.
Adjustment part 29 be produce Shi Zhong – data recovery portion 51 data-clock between skew adjustment instruction Component units.
Moreover the data intensity that the 2nd acceptance division 43 receives, according to the intensity adjustment instruction via the 1st transport unit 11 and the 2nd acceptance division 43, is adjusted by the 2nd intensity adjustment part 49.
In addition Shi Zhong – data recovery portion 51 adjusts between data-clock own according to skew adjustment instruction between the data-clock via the 1st transport unit 11 and the 2nd acceptance division 43 and offsets, and clock and data is restored from the data that the 2nd acceptance division 43 receives.
3rd aspect of the present invention is about a kind of image display device, and it has: above-mentioned any one transmits receiving trap and carry out according to the data that the 2nd acceptance division 43 receives the image displaying part 71 that image is shown as object.
[embodiment]
Fig. 2 is the calcspar of the display conveyer 110 of the present embodiment and the formation of receiving trap 120.As shown in Figure 2, conveyer 110 has: acceptance division 111, control part 112, clock produce department 113 and transport unit 114.The transport unit 114 of conveyer 110 comprises: scrambler portion 213, trigger portion 212, output buffer portion 211 and phase shift portion 214.And receiving trap 120 possesses: input buffer portion 121, Shi Zhong – data restore (CDR) portion 122, demoder portion 123, storage part 124 and transport unit 125.
The data arranged side by side that the scrambler portion 213 of conveyer 110 will receive the instruction of control part 112 and the multidigit units such as the data of the image display data that inputs or calibration institute palpus is transformed to the serial data of 1 bit, and exports to trigger portion 212.
Reference clock as the output basis regularly producing output data exports to phase shift portion 214 by clock produce department 113.
Phase shift portion 214 accepts the input of the reference clock that self-clock generating unit 113 exports, and makes the phase place of reference clock change and export to trigger portion 212 according to the phase-shift phase indicated by control part 112.
The data that own coding device portion 213 exports can be adjusted to according to the timing indicated by the clock exported from phase shift portion 214 by trigger portion 212, and data is outputted to output buffer portion 211.
211, output buffer portion, to the data exported from trigger portion 212, adjust, and the data after being adjusted transmits to receiving trap 120 by from the pre-equalization intensity etc. indicated by control part 112.
The data that the transport unit 125 that the acceptance division 111 of conveyer 110 is received from receiving trap 120 is sent here, and export to control part 112.
The control part 112 of conveyer 110 controls conveyer 110 and both receiving traps 120.Its detailed description is undertaken after the explanation of each square.
The data that the input buffer portion 121 of receiving trap 120 will transmit from conveyer 110 receives, according to waiting setting of change intensity that input waveform is given shaping, and clock – data recovery portion 122 when exporting to.Input buffer portion 121 possesses multiple intensity settings such as gradeization, and intensity such as grade is changed according to the instruction of control part 112.
Shi Zhong – data recovery portion 122 receives the data from input buffer portion 121, and extracts clock and data out from this data, and is exported in timely for the data of extraction clockwise demoder portion 123.
Demoder portion 123 can distinguish the kind of the data that Zi Shi Zhong – data recovery portion 122 exports.When the data that Zi Shi Zhong – data recovery portion 122 exports is the physical data of image display being used in back segment image displaying part, namely output to back segment.Moreover demoder portion 123, when the data exported is for calibration necessary data, then exports storage part 124 in Zi Shi Zhong – recovery portion.In addition, when the data exported by Shi Zhong – recovery portion is the control data in input buffer portion 121 or Shi Zhong – data recovery portion 122, data can be outputted to this corresponding square by demoder portion 123 respectively.
When the data that Zi Shi Zhong – data recovery portion 122 exports is for calibration necessary data, namely data is stored according to the instruction in demoder portion 123 by storage part 124.
The transport unit 125 of receiving trap 120 by the data transmission that exports from storage part 124 to conveyer 110.
The data transmission that control part 112 pairs of mat data transmission portions 114 perform controls.Specifically, system material is carried out in the money control that control part 112 can export own coding device portion 213.In order to the data analyzing receiving trap 120 receives situation, control part 112 also can control phase shift portion 214.And control part 112 controls the pre-equalization intensity of the data transmitted from the output buffer 211 in data transmission portion 114 according to the data that mat acceptance division 111 receives.
The data performed about input buffer portion 121 or the Shi Zhong – data recovery portion 122 of mat receiving trap 120 receives, and control part 112 also can control.The data that control part 112 receives according to mat acceptance division 111, through the control data transmitting receiving trap 120 from conveyer 110, controls the waveform in the input buffer portion 121 of receiving trap 120 etc. and changes intensity.Control part 112 also according to the data that mat acceptance division 111 receives, through the control data transmitting receiving trap 120 from conveyer 110, skew when adjusting between the data in clock – data recovery portion 122 and sampling clock.
Control part 112 more satisfactory for the pre-equalization intensity of data transmitted from the output buffer 211 of transport unit 114, the input buffer portion 121 of receiving trap 120 etc. change intensity and receiving trap 120 time clock – data recovery portion 122 skew etc. all controlled, but also can be set as wherein any one controls.
Fig. 3 display transmits from the conveyer 110 of the present embodiment and the form of the data received at receiving trap 120.The clock bit that it embeds at certain intervals " 01 ", extracts clock and data out in order to do the data making receiving trap 120 can transmit from conveyer 110." 1 " of the D [0] in figure and " 0 " of D [n-1] is namely equivalent to clock bit.The rising edge that this clock bit is formed is called reference edge.The reference edge received at certain intervals that the time clock – data recovery portion 122 of receiving trap 120 is formed using this clock bit, as benchmark, produces the sampling clock to input data sampling, and by input data breech lock.
Then, the calibration data using Fig. 4 to Fig. 5 to be just sent to receiving trap 120 from conveyer 110 is illustrated.
The data example exported from control part 112 controlled encoder portion 213 and from data transmission portion 114 has such as the following 6 kinds of data: the data being also used in the image display of image displaying part, the analysis starting analysis of data reception situation in the display of the Shi Zhong – data recovery portion 122 of receiving trap 120 starts data, be used in the analysis of data of actual analysis, indicate the transmission instruction data of the data transmitting receiving trap 120 pairs of analysis of data sampling gained from the transport unit 125 of receiving trap 120, the waveform etc. being used in the input buffer portion 121 of setting receiving trap 120 changes the control data of the skew adjustment in intensity or Shi Zhong – data recovery portion 122, from the virtual data that receiving trap 120 transmits during need not transmitting significant especially data.If roughly distinguish, have: be used in the physical data of the image display of image displaying part and be used in two classes such as calibration data between alignment epoch.
Fig. 4 transmits and the diagram of the data of mat receiving trap 120 reception from the conveyer 110 of the present embodiment.Wherein, figure (a) shows physical data, and figure (b) then shows calibration data.Calibration data comprises: represent that the analysis that calibration starts starts data, analysis of data, transmission start data, control data and virtual data.The differentiation of physical data and calibration data is carried out according to the polarity of D [1] bit.In embodiment, being physical data when D [1] bit is 0, is then calibration data when D [1] bit is 1.The position of judgement bit can not be D [1], and polarity also can be contrary.
About analysis beginning data, transmit beginning data, control data and virtual data, continue to transmit through with more than 3 bits identical bit, make the accepting state of receiving trap 120 be not at one's best under also can correctly receive, receiving trap 120 just can really identification data.Because analysis of data is according to this reception situation to judge delivery status, thus not subject to the limits.
Fig. 5 is the diagram transmitting the conveyer 110 from embodiment and compared in the timing of the sampling clock of receiving trap 120 inside with the physical data of receiving trap 120 reception and analysis of data.Wherein, figure (a) represents physical data, and figure (b) represents analysis of data.
To transmitting physical data from conveyer 110 and the clock (" receiving trap internal clocking " in figure) that samples of physical data that receives of mat receiving trap 120, as shown in this figure (a), with reference edge by benchmark is produced, in order to sample the data of the middle of data, and controlled by Shi Zhong – data recovery portion 122.About the relative position of this data and clock, to analysis beginning data, transmit beginning data, control data, the equal symbolic animal of the birth year of virtual data with.
Relatively, as shown in figure (b), the analysis of data that mat receiving trap 120 receives, the reference edge that its constituted mode receives with receiving trap 120 is positioned at transition (edge) part of data for benchmark and the clock that produces.
Namely, in conveyer 110, with transmit physical data, analyze beginning data, transmit beginning data, the situation of control data and virtual data compares, in transmit analysis of data time, control part 112 make clock bit directly by the bit beyond it relative to reference edge relatively to move the kenel transmission of 0.5 bit amount.
As a result, in receiving trap 120, when receiving and analyzing data, can sample with the transition of identical action to data during reception physical data.
Secondly, with reference to figure 7 to Fig. 8, using receiving trap 120 to transmitting the analytical sampling data carrying out sampling gained from the analysis of data of conveyer 110 with regard to control part, judging that the mistake that the pre-equalization of conveyer 110, receiving trap 120 etc. are changed is illustrated with the method for deficiency.
Figure (a) display of Fig. 7 judges the mistake that the pre-equalization, receiving trap 120 etc. of conveyer 110 are changed and the summary of the analysis of data of deficiency, and the sampling clock (indicating with arrow in figure) in the analysis of data of figure (b) display passivation because of transfer path and clock – data recovery portion 122 is relative to the mistake of change and the relations of deficiency such as the pre-equalization of conveyer 110 and receiving traps 120.
In figure, the state that the combination of the changes such as the pre-equalization of conveyer 110 and receiving trap 120 is too weak is denoted as " low etc. change ", and optimum condition is denoted as " the best ", and too strong state is denoted as " crossing gradeization ".
At the sampling clock of each bit that the time clock – recovery portion of receiving trap 120 produces, with the reference edge of the rising edge of clock bit for benchmark institute producer.Moreover, in the passivation of waveform, because bit above can impact the timing of bit below, therefore kenel near clock bit and the bit used when judging reception situation are (in figure, only show D [x] bit) near kenel different time, the relative position of sampling clock and data can change.From the change of this relative position can judge the passivation situation of waveform, the pre-equalization of conveyer 110 and receiving trap 120 etc. change effect.
In embodiment, analysis of data near clock bit in continuing the kenel of identical bit, the bit (in figure, only showing D [x] bit) used when judging reception situation be about to as bit the kenel of reversion formed.The waveform passivation caused because of transfer path is very large, pre-equalization, etc. change rapid change under the more weak change state such as low, the bit becoming " 0 " as " 101 " kenel, can get back to " 1 " before arriving correct " 0 " logic level, therefore can be judged to be " 1 " changing the D [x] sampled.Moreover, relative to the waveform passivation caused because of transfer path, pre-equalization, etc. change in the change situations such as too strong mistake, overreaction is understood when " 101 " of the rapid change of meeting become " 0 " bit, waveform can be crossed and be flushed to downside, if therefore when sampling the rising edge of its waveform, can sample " 0 ".Relative to the waveform passivation caused because of transfer path, pre-equalization, etc. change be set as in the situation of optimum, just can sample the transition of data the clock that D [x] samples, " 1 " and " 0 " are understood with roughly the same proportional sampling.
Fig. 8 display carry out the pre-equalization of conveyer 110, receiving trap 120 etc. change adjustment time, the corresponding table of the analytical sampling data that the Shi Zhong – data recovery portion 122 of mat receiving trap 120 samples and the judgement of the control part 112 of conveyer 110.
The control part 112 of conveyer 110 based on determinating reference as shown in Figure 8, from the analytical sampling data returned from receiving trap 120 with the setting of present situation to judge waveform pre-equalization, etc. the mistake changed and deficiency, and maintain optimum.
In addition, in the present embodiment, to 1 analysis of data using the sampling result of only 1 bit as analytical sampling data, make transport unit 125 pairs of conveyers 110 times news of receiving trap 120, control part 112 judges based on this data.But, in 1 analysis of data, also can use the result of multidigit unit.
Then, use Fig. 9, with regard to receiving trap 120, transmission is sampled from the analysis of data of conveyer 110 and obtains analytical sampling data, and the method sentencing the data in timing watch – data recovery portion 122 and the phase relation of sampling clock by the control part 112 of the conveyer 110 receiving this analytical sampling data is illustrated.
Identical with during detection waveform passivation, the clock that each bit produced the time clock – data recovery portion 122 of receiving trap 120 samples, produces for benchmark with the reference edge of clock bit.In order to detect time the data that occurs of clock – data recovery the portion 122 and phase differential (skew) of clock, must make aforementioned because of waveform passivation cause before the impact of symbol intersymbol interference that impacts of the timing of bit on bit below can ignore.By being set to identical by the kenel judged near clock bit with the kenel near the bit used during phase differential (only showing D [x] bit in figure), this object can be realized.Due to the external factor such as waveform passivation can be made by this to eliminate, therefore the skew of data and the sampling clock occurred in Shi Zhong – data recovery portion 122 can be detected.
In embodiment, analysis of data is by the kenel continuing identical bit near clock bit, near the bit (in figure, only showing D [x] bit) used when sentencing the data in timing watch – data recovery portion 122 and the skew between sampling clock, also identical with near clock bit kenel formed.
When the phase place of sampling clock is than data advance (situation on this figure (b) left side), its sampling result is always " 0 ", time the phase place of sampling clock more backward than data (situation on this figure (b) the right), its sampling result is always " 1 ".Again, when the phase place of sampling clock is consistent with data, " 1 " is identical with the sampling frequency of " 0 ".
Figure 10 shows when adjusting into the data in row clock – data recovery portion 122 and the skew between sampling clock, the corresponding table that the control part 112 that the time clock – data recovery portion 122 of mat receiving trap 120 carries out analytical sampling data and the conveyer 110 sampled judges.
The control part 112 of conveyer 110 is based on determinating reference as shown in Figure 10, and the analytical sampling data returned from receiving trap 120 sets the phase relation judging data and sampling clock with present situation, and maintains optimum.
Secondly, the summary using Fig. 6 to receive timing with regard to the conveyer 110 in embodiment and the data transmission between receiving trap 120 is illustrated.In this figure, from top to bottom sequentially show: the data transmitted to receiving trap 120 from conveyer 110, the calibration data storage at the storage part 124 of receiving trap 120, the transport unit 114 from conveyer 110 carry out the timing of the Hui Xun of data transmission and the control etc. by this corresponding portion of control part 112 pairs of receiving traps 120.
Following each data, under the control of control part 112, transmits to receiving trap 120 with predetermined timing by the transport unit 114 of conveyer 110: the image of image displaying part shows physical data (in figure, being denoted as " normality ") used; In order to detect the analysis of data (in figure, being denoted as " CA ") of the data accepting state of receiving trap 120; Represent that the analysis of the beginning of this data starts data (in figure, being denoted as " analyze and start "); Transmit instruction data (in figure, be denoted as " transmitting instruction "), its instruction will be stored in storage part 124 and mat Shi Zhong – data recovery 122 pairs, portion analysis of data has carried out sampling the analytical sampling data of gained, carries out the timing transmitted from the transport unit 125 of receiving trap 120; And according to the analytical sampling data transmitted from the transport unit 125 of conveyer 110, based on the analysis of the data accepting state in the Shi Zhong – data recovery portion 122 of receiving trap 120, the control data (in figure, being denoted as " CC ") etc. of the corresponding square of receiving trap 120 is controlled with control part 112.
Conveyer 110 is provided with between alignment epoch when power supply is cut or when image document hides from view etc. during beyond the physical data of image display, and transmits beginning data of analyzing, analysis of data, transmission instruction data, control data.When receiving the analytical sampling data from receiving trap 120 etc., in transmitting virtual data (figure, being denoted as " virtual ") especially during transport unit 114 transmits data.
In receiving trap 120, mat demoder portion 123 judges that the data received is when representing that the analysis that calibration starts starts data, the analytical sampling data namely using the analysis of data received thereafter as sampling gained, and is stored in storage part 124.In addition, when judging received data as transmitting beginning data with demoder portion 123, then the analytical sampling data being kept at storage part 124 is transmitted from transport unit 125.Moreover, when mat demoder portion 123 judges that the data received is the control data controlling each square, just carry out the control of this square according to the content of control data.
Though storage part 124 can by time clock – data recovery portion 122 pairs of analysiss of data sampling gained whole analytical sampling data stored, also can store its part, also can carry out the accumulative computing that waits and be stored.
Then, use Figure 11 to Figure 13, with regard to conveyer 110 control part 112 performed by the data in Shi Zhong – data recovery portion 122 of receiving trap 120, between clock the pre-equalization of skew adjustment and conveyer 110 and receiving trap 120 etc. change the flow process that intensity adjusts and be illustrated.
First, Figure 11 discloses the overall flow of the automatic calibration of embodiment.After formerly skew between the data in the Shi Zhong – data recovery portion 122 of receiving trap 120, clock being adjusted, then carry out the adjustment waiting change intensity of the pre-equalization intensity of conveyer 110 and receiving trap 120.
Figure 12 is the process flow diagram that the control part 112 of mat conveyer 110 in embodiment carries out offseting between the data in the Shi Zhong – data recovery portion 122 of receiving trap 120, clock adjustment.First, carry out the timing adjusted, when just cutting after power supply, system carries out the setting of initial value, when hiding from view period then because of the result of the previous calibration that continues, therefore does not specially set.Conveyer 110 can start data to receiving trap 120 transmission analysis beginning data, analysis of data, transmission, and receiving trap 120 receives these data, and sends analytical sampling data back to conveyer 110.After the control part 112 of conveyer receives this data, namely carry out the judgement of shift state between data, clock, and adjust according to following step according to its judged result.
Calibration, when judging that clock is consistent with the phase place of data, terminates with regard to direct by the control device of conveyer 110.In addition, during situation beyond being judged as, then following adjustment is carried out.
When being judged as that data is advanced relative to clock, the control part 112 of conveyer 110 moves the setting of a predetermined value after namely carrying out making data, or carries out making clock to move forward the control of a predetermined value.
The data that is judged as relative to clock for falling behind time, namely the control part 112 of conveyer 110 carries out making data to move forward a predetermined value or move the control of a predetermined value after making clock.
The control part 112 of conveyer 110 is at the end of above-mentioned adjustment process, then data transmitting analysis from conveyer 110 to receiving trap 120, repeatedly carries out a series of adjustment programme, until judge that clock reaches consistent with the phase place of data.
Figure 13 be mat conveyer 110 in embodiment control part 112 to adjust the pre-equalization intensity of conveyer 110 and receiving trap 120 etc. change the process flow diagram of intensity.First, carry out opportunity of adjusting for after just incision power supply time, carry out the setting of initial value, when adjustment opportunity is for hiding from view period, then continue previous calibration result, so specially do not set.Conveyer 110 pairs of receiving traps 120 transmission analysis beginning data, analysis of data, transmission start data, and receiving trap 120 receives these data, and sends analytical sampling data back to conveyer 110.After the control part 112 of conveyer 110 receives this data, namely the pre-equalization of mat transport unit 114 and receiving trap 120 etc. change the judgement carrying out wave shaping state, and to adjust according to following step according to its judged result.
The control part 112 of conveyer 110 judge the pre-equalization of mat transport unit 114 and receiving trap 120 etc. change gained wave shaping state be optimum condition time, namely direct calibration to be terminated.In addition, when judged result is other situation, namely following adjustment is carried out.
The control part 112 of conveyer 110 be judged as the pre-equalization intensity of the conveyer 110 of present situation and receiving trap 120 etc. to change the combination of intensity too weak, when failing waveform passivation to revise completely (in figure, be denoted as " low gradeization "), namely control, make the pre-equalization intensity of conveyer 110 improve a predetermined value.
The control part 112 of conveyer 110 be judged as the pre-equalization intensity of the conveyer 110 of present situation and receiving trap 120 etc. to change the combination of intensity too strong, waveform overshoot can be there is, can be formed on the contrary to receiving trap 120 be difficult to receive waveform time (in figure, be denoted as " crossing gradeization "), namely control, make receiving trap 120 etc. change intensity reduce a predetermined value.
At the end of above adjustment process, data the control part 112 of conveyer 110 can transmit from conveyer 110 to receiving trap 120 again and analyze, repeat a series of adjustment programme, until the pre-equalization of mat transport unit 114 and acceptance division 111 etc. change gained wave shaping state be judged to be optimum condition.
Figure 14 shows the method that mat phase shift portion 214 produces the reference clock exported to trigger.Wherein, the diagram that figure (a) display circuit is formed, figure (b) is timing diagram.
Accept the multi-phase clock (figure, be denoted as " reference clock _ Clock_n ", n is integer) exported from reference clock, and produce Clock_1 by the combination of reference clock _ Clock_1 and reference clock _ Clock_3.And, produce Clock_2 by the combination of the reference clock _ Clock_m and reference clock _ Clock_m+2 that move 0.5 bit amount phase place from reference clock 1.Thus Clock_1 and Clock_2 just forms the phase relation of moving 0.5 bit amount phase place each other.Generally, Clock_1 is exported as reference clock, when exporting analysis of data and having moved the data of 0.5 bit, then selected by selection signal the Clock_2 moving 0.5 bit amount compared with Clock_1, made sluggish 0.5 bit of output clock.
Figure 15 shows the implementation method of the pre-equalization intensity in the impact damper changing conveyer 110.Figure (a) is formed for circuit, schemes truth table during (b) display change pre-equalization intensity, figure (c) display translation waveform.
Pre-equalization is predict the situation of the blunt deterioration because of the impact of transfer path etc. of the waveform output from impact damper, and in advance by technology that the high fdrequency component of easy affected waveform is strengthened.In embodiment, by sub-impact damper parallel connection configuration different for output intensity, and make this little impact damper make a certain amount of ON/OFF by certain period, and the expectation waveform of making as shown in figure (c), this waveform is obtained reducing with the amplitude of the identical bit of bit above from bit above amplitude when changing.Figure 16 shows the implementation method of the intensity such as gradeization in the input buffer portion 121 changing receiving trap 120.Figure (a) is formed for its circuit, and scheming (b) is to show the situation of the frequency characteristic in input buffer portion 121 by setting.
Affect and the high fdrequency component of the waveform of blunt deterioration owing to being input into input buffer portion 121 transfer path by strengthening Deng change, and the technology of the beautiful waveform that the Shi Zhong – data recovery portion 122 being reshaped into back segment easily receives.In embodiment, use the circuit as figure (a), through the value changing resistance or capacity, and realize as the different frequency characteristic of figure shown in (b).This resistance value or capability value change according to the instruction of the control part 112 from conveyer 110.
(utilizability in industry)
The present invention can utilize in motor industry.
Description of reference numerals
1 conveyer
11 the 1st transport units
13 data generating units
15 calibration engines
17 the 1st acceptance divisions
19 edge analysis units
21 timing adjustment instruction generating units
23 the 1st intensity adjustment parts
25 intensity adjustment instruction generating units
27 the 2nd intensity adjustment instruction generating units
29CDR adjustment part
31 the 1st distributions
41 receiving traps
43 the 2nd acceptance divisions
45 storage parts
47 the 2nd transport units
48 demoder portions
49 the 2nd intensity adjustment parts
51 Shi Zhong – data recovery portions
61 the 2nd distributions
71 image displaying parts
Claims (8)
1. a conveyer (1), is characterized in that having:
1st transport unit (11), in order to transmit data to receiving trap (41) via the 1st distribution (31);
Data generating unit (13), produces the data that the 1st transport unit (11) transmits; And
Calibration engine (15), in order to control the calibrating signal that aforesaid data generating unit (13) produces,
Wherein, the calibrating signal that such alignment engine (15) control data generating unit (13) produces, makes such alignment signal, to the clock bit being embedded in data, a predetermined timing amount is moved in timing.
2. conveyer as according to claim 1 in Shen, is characterized in that, aforementioned predetermined timing amount is the amount that aforementioned receiving trap (41) can sample the marginal portion of aforesaid data.
3. conveyer as according to claim 1 in Shen, is characterized in that,
There is the 1st acceptance division (17) again that accept the data that aforementioned receiving trap (41) receives;
And there is timing adjustment instruction generating unit (21), it produces the timing adjustment instruction for the purpose of the timing in order to adjust the calibrating signal that aforesaid data generating unit (13) produces;
Aforesaid data generating unit (13) adjusts the timing of data according to the timing adjustment instruction accepted from aforementioned timing adjustment instruction generating unit (21).
4. conveyer as according to claim 2 in Shen, is characterized in that,
The intensity again with the data the 1st transport unit (11) transmitted carries out the 1st intensity adjustment part (23) adjusted;
Such alignment engine (15),
Such alignment engine (15) has again:
Edge analysis unit (19), when the 1st acceptance division (17) accepts the information of associated corrective signal, is resolved the marginal portion of accepted calibrating signal; And
Intensity adjustment instruction generating unit (25), according to the marginal portion information of the calibrating signal that preceding edge analysis unit (19) is resolved, produce the 1st intensity adjustment instruction of the intensity that will adjust about the 1st intensity adjustment part (23)
1st intensity adjustment part (23) is according to the 1st intensity adjustment instruction from aforementioned intensity adjustment instruction generating unit (25), and the intensity of the data the 1st transport unit (11) transmitted adjusts.
5. a transmission receiving trap, is characterized in that, comprises the conveyer described in Shen claim 3 or 4; And aforementioned receiving trap (41) and the 2nd distribution (61);
Aforementioned receiving trap (41) has:
Receive the 2nd acceptance division (43) via the data of the 1st distribution (31);
Store the storage part (45) of the data that aforesaid data acceptance division (43) receives; And
That transmits toward the 1st acceptance division (17) via the 2nd distribution (61) in order to the data that stored by aforementioned storage part (45) the 2nd send portion (47).
6. transmission receiving trap as according to claim 5 in Shen, is characterized in that, aforementioned receiving trap has the demoder portion (48) whether data that differentiation the 2nd acceptance division (43) receives is calibrating signal again.
7. transmission receiving trap as according to claim 3 in Shen, is characterized in that,
Aforementioned receiving trap (41) has again:
2nd intensity adjustment part (49), the intensity of the data that its adjustment the 2nd acceptance division (43) receives; And
Shi Zhong – data recovery portion (51), the clock recovery of the data received in order to make the 2nd acceptance division (43),
And such alignment machine (15) has:
2nd intensity adjustment instruction generating unit (27), according to the marginal portion information of the calibrating signal that preceding edge analysis unit (19) is resolved, produces the intensity adjustment instruction of the 2nd intensity adjustment part (49); And CDR adjustment part (29), in order to produce aforementioned Shi Zhong – data recovery portion (51) data-clock between skew adjustment instruction,
2nd intensity adjustment part (49) adjusts the intensity of the data that the 2nd acceptance division (43) receives according to the aforementioned intensity adjustment instruction via the 1st transport unit (11) and the 2nd acceptance division (43),
Aforementioned Shi Zhong – data recovery portion (51) adjusts between data-clock according to skew adjustment instruction between the aforesaid data-clock via the 1st transport unit (11) and the 2nd acceptance division (43) and offsets, and the data that clock and data are received from the 2nd acceptance division (43) is restored.
8. an image display device, is characterized in that, possesses:
Transmission receiving trap according to any one of the claim 5 to 7 of Shen; And
Data in order to receive according to the 2nd acceptance division (43) carries out the image displaying part (71) of image display.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-174049 | 2013-08-26 | ||
| JP2013174049 | 2013-08-26 | ||
| JP2013-208157 | 2013-10-03 | ||
| JP2013208157A JP5807048B2 (en) | 2013-08-26 | 2013-10-03 | Calibration device, image display device with calibration function |
| PCT/JP2014/069035 WO2015029636A1 (en) | 2013-08-26 | 2014-07-17 | Calibration device and image display device with calibration function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105324809A true CN105324809A (en) | 2016-02-10 |
| CN105324809B CN105324809B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480030075.2A Active CN105324809B (en) | 2013-08-26 | 2014-07-17 | The image display device of calibrating installation, attached calibration function |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5807048B2 (en) |
| KR (1) | KR101718413B1 (en) |
| CN (1) | CN105324809B (en) |
| TW (1) | TWI559273B (en) |
| WO (1) | WO2015029636A1 (en) |
Citations (4)
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| US20040252239A1 (en) * | 2003-05-29 | 2004-12-16 | Fujitsu Component Limited | Remote unit and remote system |
| US20060078078A1 (en) * | 2004-10-07 | 2006-04-13 | Kawasaki Microelectronics, Inc. | Phase detector for comparing phases of data and a plurality of clocks |
| CN102246413A (en) * | 2008-12-12 | 2011-11-16 | 阿斯特里姆有限公司 | Multiport amplifier adjustment |
| CN102428674A (en) * | 2009-04-23 | 2012-04-25 | 哉英电子股份有限公司 | Transmission apparatus, reception apparatus, transmission-reception system, and image display system |
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|---|---|---|---|---|
| US6247138B1 (en) * | 1997-06-12 | 2001-06-12 | Fujitsu Limited | Timing signal generating circuit, semiconductor integrated circuit device and semiconductor integrated circuit system to which the timing signal generating circuit is applied, and signal transmission system |
| WO2007029579A1 (en) * | 2005-09-06 | 2007-03-15 | Sanyo Electric Co., Ltd. | Reception method and device and communication system using the same |
| JP4922680B2 (en) * | 2005-09-20 | 2012-04-25 | 三洋電機株式会社 | Wireless device and communication system using the same |
| JP2009047877A (en) | 2007-08-20 | 2009-03-05 | Epson Imaging Devices Corp | Chip-on glass type display module and its mounting inspection method |
| US8564433B2 (en) * | 2010-10-13 | 2013-10-22 | International Business Machines Corporation | Location and time-based action triggering notification system and method |
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2013
- 2013-10-03 JP JP2013208157A patent/JP5807048B2/en active Active
-
2014
- 2014-07-17 CN CN201480030075.2A patent/CN105324809B/en active Active
- 2014-07-17 WO PCT/JP2014/069035 patent/WO2015029636A1/en active Application Filing
- 2014-07-17 KR KR1020157035516A patent/KR101718413B1/en not_active Application Discontinuation
- 2014-07-28 TW TW103125735A patent/TWI559273B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040252239A1 (en) * | 2003-05-29 | 2004-12-16 | Fujitsu Component Limited | Remote unit and remote system |
| US20060078078A1 (en) * | 2004-10-07 | 2006-04-13 | Kawasaki Microelectronics, Inc. | Phase detector for comparing phases of data and a plurality of clocks |
| CN102246413A (en) * | 2008-12-12 | 2011-11-16 | 阿斯特里姆有限公司 | Multiport amplifier adjustment |
| CN102428674A (en) * | 2009-04-23 | 2012-04-25 | 哉英电子股份有限公司 | Transmission apparatus, reception apparatus, transmission-reception system, and image display system |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI559273B (en) | 2016-11-21 |
| KR101718413B1 (en) | 2017-03-21 |
| KR20160009648A (en) | 2016-01-26 |
| TW201508719A (en) | 2015-03-01 |
| CN105324809B (en) | 2017-09-22 |
| JP5807048B2 (en) | 2015-11-10 |
| JP2015065628A (en) | 2015-04-09 |
| WO2015029636A1 (en) | 2015-03-05 |
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