CN100473325C - Transmitting apparatus, receiving apparatus, and body-insertable system - Google Patents
Transmitting apparatus, receiving apparatus, and body-insertable system Download PDFInfo
- Publication number
- CN100473325C CN100473325C CNB2005800148864A CN200580014886A CN100473325C CN 100473325 C CN100473325 C CN 100473325C CN B2005800148864 A CNB2005800148864 A CN B2005800148864A CN 200580014886 A CN200580014886 A CN 200580014886A CN 100473325 C CN100473325 C CN 100473325C
- Authority
- CN
- China
- Prior art keywords
- signal
- dummy argument
- dispensing device
- unit
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention provides a transmitting apparatus, receiving apparatus, and body-insertable apparatus system. In order to realize a transmitter apparatus that reduces problems caused by voids included in a transmitted wireless signal, a capsule endoscope (2), which functions as a transmitter apparatus, comprises a subject intra-corporeal information acquiring part (21) for acquiring subject intra-corporeal information; a signal processing part (22) for producing and outputting information main body components based on the acquired subject intra-corporeal information; a dummy component output part (23) for producing and outputting dummy components, including AC signals having a predetermined frequency, at a timing corresponding to a void between information main body components; an addition part (24) for combining the information main body components with the dummy components; and a wireless transmitting part (25) for transmitting a signal combined by the addition part (24) to the exterior. Thus, the dummy components are inserted into the void between the information main bodies, thereby narrowing the frequency band of the transmitted wireless signal and further suppressing the variation of average level of the wireless signal.
Description
Technical field
The present invention relates to the outside is sent to dispensing device, the receiving system that receives this wireless signal and the introduction system into sample under test of the wireless signal that comprises the information agent part less.
Background technology
In recent years, in the field of endoscope, the capsule type endoscope of the type of swallowing has been proposed.In this capsule type endoscope, be provided with camera function and radio communication function.Capsule type endoscope has after swallowing from the oral cavity of subject in order to observe (inspection), during being discharged naturally, and in body cavity, the inside of the internal organs of stomach, small intestinal etc. the function that moves along with its vermicular movement, also make a video recording successively for example.
During in body cavity, moving,, send to the outside by radio communication successively, be stored in the memorizer that is located at the outside by the captured in vivo view data of capsule type endoscope.By carrying receptor with radio communication function and memory function, after swallowing capsule type endoscope during being discharged from, subject can act on one's own.After discharging capsule type endoscope, doctor or nurse can show that on display the image of internal organs is diagnosed (with reference to patent documentation 1) according to the view data that is stored in the memorizer.
Yet, in existing capsule-type endoscope system, by the captured view data of capsule type endoscope, for example by with based on the identical data structure of the situation of the image of NTSC mode transmission and by wireless transmission.Promptly, in the view data that in capsule-type endoscope system in the past, sends, about constituting the view data of 1 picture, and the corresponding data of scanning line of regulation and and the corresponding data of scanning line of the scanning line adjacency of afore mentioned rules between, be provided with during the so-called horizontal blanking.Be to be provided with during the horizontal blanking in order to prevent from the pictorial display on the original Braun tube to show during the regression line is as the space.The wireless signal that sends from capsule type endoscope is to have added during for this space under the state of the gap that is made of High or the corresponding flip-flop of Low with digital signal to form.
Patent documentation 1: TOHKEMY 2001-231186 communique (page 3, Fig. 1)
Patent documentation 2: TOHKEMY 2003-19111 communique
But, in existing capsule-type endoscope system, exist wireless signal to have the problem that the gap causes because of sending from capsule type endoscope.Below, the problem that causes for contain the gap in wireless signal at length describes.
At first,, in existing capsule-type endoscope system, use in the signal processing circuit in receiver etc. under the coupled situation of AC, produce instantaneous voltage and change the problem that causes owing to there is the gap.That is, contain the signal component with regulation amplitude corresponding with view data in the information agent part, information agent partly has the average level corresponding with above-mentioned signal component, and on the other hand, the gap has the fixed voltage corresponding with High or Low.Therefore, usually the average level of the average level of information agent part and gap (promptly, with high or Low corresponding voltage levels) differ fixed amount, in the receiver that receives the wireless signal that relates to, in order to reduce and the corresponding side-play amount of voltage difference, use ac-coupled circuit with electric capacity etc.
Use in the receiver of capsule-type endoscope system under the situation of this ac-coupled circuit, hurriedly falling the instantaneous voltage variation that (sag) wait becomes problem.Promptly, the wireless signal that sends from capsule type endoscope, the view data corresponding with 1 image be because have information agent part and the multiple structure in gap, so produce variation in voltage continually, thereby following etc. of ac-coupled circuit may have problems.
And, in capsule-type endoscope system in the past, in receiver, have the problem that is difficult to from the wireless signal that receives, remove noise contribution.As mentioned above, owing to the flip-flop of gap by fixed voltage constitutes, therefore the wireless signal that sends from capsule type endoscope, comprise and the corresponding low-frequency component in gap with predetermined ratio.That is, owing to continue hundreds of μ sec during the horizontal blanking of the direct current signal of output constant intensity usually, thus in wireless signal, contain inevitably and the corresponding low-frequency component of this time span.
On the other hand, in receiver, be typically provided with frequency filter, it is used for getting rid of noise contribution from the wireless signal that receives, and only extracts the wireless signal that sends from capsule type endoscope out.Because this frequency filter has the function of extracting out with the frequency content of the corresponding frequency band of frequency of the wireless signal that sends from capsule type endoscope, owing to comprise and the corresponding low-frequency component in gap in the wireless signal, need the wide band frequency filter that this low-frequency component is also passed through.This noise contribution that will cause removing by frequency filter reduces, so the viewpoint from frequency filter is worked effectively, and it is imappropriate to comprise low-frequency component in wireless signal.
Summary of the invention
The present invention In view of the foregoing proposes, its purpose is, dispensing device, the receiving system of the unfavorable condition that the gap that comprises in the wireless signal that the realization minimizing is sent causes and the introduction system into sample under test of having used this dispensing device or receiving system in the subject introducing device.
In order to solve above-mentioned problem, to reach purpose, dispensing device of the present invention is the dispensing device that is sent to the wireless signal that comprises the information agent part less to the outside, it is characterized in that this dispensing device has: information agent output unit, its output comprise the signal of described information agent part; The dummy argument component output unit, the dummy argument composition that its output is formed by the AC signal more than 1 with predetermined frequency content; Dummy argument inserts the unit, its in the signal that comprises described information agent part, do not exist at least a portion of gap of described information agent part and inserting described dummy argument composition; And the wireless transmission unit, it has inserted signal described dummy argument composition, that comprise described information agent part to outside wireless transmission.
According to the present invention, insert the unit by having dummy argument, this dummy argument inserts the unit for inserting the dummy argument composition that is formed by AC signal from the gap that produces between the information agent composition of information agent output unit output, only compare with the gap by the situation that flip-flop constitutes, the frequency band arrowbandization of the wireless signal of transmission can be made, and the average electrical adjustment of information agent composition and gap can be lowered.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, described dummy argument composition is formed by the AC signal with the consistent basically average level of the average level of the signal that comprises described information agent part.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, described dummy argument composition is formed by the AC signal with the consistent basically average frequency of the average frequency of the signal that comprises described information agent part.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described dummy argument composition is formed by the fixed model of regulation.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described dummy argument composition is formed by the clock signal with fixed frequency.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described dummy argument composition uses pseudo-noise code to form.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, described dummy argument inserts the unit and has adder unit, and this adder unit synthesizes from the described information agent part of the signal of described information agent output unit output and the described dummy argument composition of exporting from described dummy argument component output unit.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, described dummy argument inserts the unit and has switch unit, this switch unit will switch between described information agent part and described dummy argument composition the signal component of described wireless transmission unit output according to predetermined timing.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, the signal that comprises described information agent part is a picture signal, during described gap is horizontal blanking.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described dispensing device has the function that obtains in-subject information in the importing subject, and described information agent generating portion comprises described in-subject information and forms.
In addition, introduction system into sample under test of the present invention, it has subject introducing device and receiving system, this subject introducing device is imported into the inside of subject, sends the wireless signal that comprises the information that obtains to the outside, this receiving system receives the wireless signal that sends from described subject introducing device, it is characterized in that, described subject gatherer has: the information agent output unit, its output comprises the signal of information agent part, and described information agent composition comprises obtained in-subject information; The dummy argument component output unit, the dummy argument composition that its output is formed by the AC signal more than 1 with predetermined frequency content; Dummy argument inserts the unit, and it inserts described dummy argument composition at least a portion of the gap that does not have described information agent part in the signal that comprises described information agent part; And the wireless transmission unit, it has inserted signal described dummy argument composition, that comprise described information agent part to outside wireless transmission, and described receiving system has: reception antenna; And external device (ED), it receives the wireless signal that sends from described subject introducing device via described reception antenna, and extracts described in-subject information from the wireless signal that receives.
In addition, dispensing device of the present invention is characterised in that, this dispensing device has dummy argument signal extra cell, during its horizontal blanking in the video signal of taking and the black-out intervals of at least one side in the vertical blanking period, and the additional dummy argument signal that the average DC level that sends signal is provided; And setup unit, it has or not described dummy argument signal additional at least or the content of carrying out additional described dummy argument signal is set, this dispensing device carries out the additional of described dummy argument signal according to the setting content of described setup unit in described black-out intervals.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described setup unit has: the holding unit that the content that described setup unit is set keeps as mode of operation; And the selected cell of selecting described mode of operation.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, the content of described dummy argument signal comprises the clock frequency of described dummy argument signal.
In addition, dispensing device of the present invention is characterised in that in above-mentioned invention, described dummy argument signal is the dummy argument pulse, and the rising edge of this dummy argument pulse, the moment of trailing edge are arranged in the part beyond the image information of the signal that imaging apparatus reads successively.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, and integer/one's that described dummy argument signal is the readout clock of imaging apparatus clock signal.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, and integer/one's that described dummy argument signal is a data transfer clock clock signal.
In addition, dispensing device of the present invention is characterised in that, in above-mentioned invention, and alternately additional opposite polarity high level signal and low level signal during the content of described dummy argument signal is included in during the successive described horizontal blanking.
In addition, receiving system of the present invention is the receiving system that receives the video signal that is sent from dispensing device, it is characterized in that this receiving system has: detecting unit, and it detects during the interior horizontal blanking of described video signal or vertical blanking period; And extra cell, it is the additional dummy argument signal that the average DC level that sends signal is provided in described black-out intervals.
In addition, receiving system of the present invention is characterised in that in above-mentioned invention, described extra cell has: the dummy argument signal generating unit that generates the dummy argument signal; And switch unit, it switches to the dummy argument signal from described dummy argument signal generating unit in the detected black-out intervals of described detecting unit, export as described video signal.
In addition, receiving system of the present invention is characterised in that in above-mentioned invention, described extra cell has: the dummy argument signal generating unit that generates the dummy argument signal; And adder unit, it is exported being added to from the dummy argument signal of described dummy argument signal generating unit on the described video signal in the detected black-out intervals of described detecting unit.
Dispensing device of the present invention and introduction system into sample under test insert the unit by having dummy argument, this dummy argument inserts the unit for inserting the dummy argument composition that is formed by AC signal from the gap that produces between the information agent composition of information agent output unit output, thereby only compare by the situation that flip-flop constitutes with the gap, can make the frequency band arrowbandization that sends wireless signal, reach the effect of the average electrical adjustment that can lower information agent composition and gap simultaneously.
In addition, in dispensing device of the present invention, have: dummy argument signal extra cell, during its horizontal blanking in the video signal of taking and the black-out intervals of at least one side in the vertical blanking period, the additional dummy argument signal that the average DC level that sends signal is provided; And setup unit, it has or not described dummy argument signal additional at least or the content of carrying out additional described dummy argument signal is set, this dispensing device is according to the setting content of described setup unit, in described black-out intervals, carry out the additional of described dummy argument signal, like this, particularly use the readout clock of imaging apparatus etc., make the rising edge of dummy argument pulse, the moment of trailing edge is arranged in the part beyond the image information of the signal that imaging apparatus reads successively, therefore, can optionally set the content of the additional and additional dummy argument signal of dummy argument signal according to the characteristic of receiver side, and the sneaking into of the additional noise that causes of dummy argument signal that can prevent to follow black-out intervals, can make the average DC level unanimity that sends signal, reach the effect that can obtain good video information.
In addition, in receiving system of the present invention, detecting unit detects during the interior horizontal blanking of described video signal or each black-out intervals of vertical blanking period, extra cell is the additional dummy argument signal that the average DC level that sends signal is provided in the detected black-out intervals of described detecting unit, even therefore in the black-out intervals of the signal that receives, do not exist under the situation of dummy argument signal, also can be to the additional dummy argument signal of whole black-out intervals, can make the average DC level of received signal always consistent, reach the effect that can obtain good video information.
Description of drawings
Fig. 1 is the sketch map of population structure that the introduction system into sample under test of embodiment 1 is shown.
Fig. 2 is the block diagram that the structure of the receiving system that introduction system into sample under test has is shown.
Fig. 3 is the block diagram that the structure of the capsule type endoscope that introduction system into sample under test has is shown.
Fig. 4 is the sequential chart that the information agent composition of exporting by signal processing part is shown and passes through the dummy argument composition of dummy argument composition efferent output.
Fig. 5 is the sketch map that the concrete structure of dummy argument composition is shown.
Fig. 6 is the sketch map that the structure of the signal component of exporting by addition portion is shown.
Fig. 7 is the block diagram that the structure of the capsule type endoscope that the introduction system into sample under test of embodiment 2 has is shown.
Fig. 8 is the block diagram that the structure of the capsule type endoscope that the introduction system into sample under test of embodiment 3 has is shown.
Fig. 9 illustrates the sketch map that has as the population structure of the radio-type in-subject information acquisition system of the capsule type endoscope of the dispensing device of embodiment of the present invention 4.
Figure 10 is the block diagram that the structure of capsule type endoscope shown in Figure 9 is shown.
Figure 11 illustrates the figure that is stored in the content in the set-up register.
Figure 12 is the figure that the relation during the date processing and between the black-out intervals is shown.
Figure 13 is the sequential chart that the generation of the dummy argument pulse of using the shooting clock is shown.
Figure 14 is the figure of an example that the dummy argument pulse of the transfer clock that uses digital processing is shown.
Figure 15 is the figure that is illustrated in an example of alternately inserting the dummy argument signal under different high level of polarity and the low level situation in the black-out intervals.
Figure 16 is the block diagram that the structure of receiving system is shown.
Figure 17 is the block diagram that the structure of receiving circuit shown in Figure 16 is shown.
Figure 18 is the block diagram of structure that the variation of receiving circuit is shown.
Symbol description
1: subject; 2: capsule type endoscope; 3: receiving system; 4: display device; 5: the pocket recording medium; 7a-7h: reception antenna; 8: external device (ED); 10: change-over switch; 11: receiving circuit; 12: frequency filter; 13: ac-coupled circuit; 14: signal processing circuit; 15: control part; 15a: select control part; 16: storage part; 17: sampling hold circuit; The 18:A/D converter section; 19: supply of electric power portion; 21: the in-subject information obtaining section; 22: signal processing part; 23: dummy argument composition efferent; 24: addition portion; 25: the wireless transmission part; 26: the timing generating unit; 27: battery; 28:LED; The 29:LED drive circuit; 30:CCD; The 31:CCD drive circuit; 32: transtation mission circuit; 33: transmitting antenna; 35: capsule type endoscope; 36: switching part; 38: information agent output substrate; 39: the dummy argument composition inserts substrate; 40,41: distribution; 101: subject; 102: receiving system; 102a: radio-cell; 102b: receive main unit; 103: capsule type endoscope; 104: display device; 105: the pocket recording medium; 111: receiving circuit; 112: signal processing circuit; The 113:A/D converter section; 114: display part; 115: storage part; 116: supply of electric power portion; 119:LED; The 120:LED drive circuit; 121:CCD; 122: signal processing circuit; 122a: dummy argument signal appendix; The 123:RF transmitting element; 124: transmitting antenna portion; The 125:CCD drive circuit; 126: system, control circuit; 127: imaging circuit; 130: power switch circuit; 131: signal deteching circuit; 132: ON-OFF control circuit; 133: on and off switch; 134: drive control part; 134a: set-up register; 135: sensor part; 136: select the configuration part; 150: Magnet; C: control part; Ca: switch control portion; SW: change-over switch; A1-An: antenna for receiving
The specific embodiment
Below, to describing as the dispensing device, the receiving system that are used to implement best mode of the present invention (below, abbreviate " embodiment " as) and the introduction system into sample under test of in the subject introducing device, having used this dispensing device or receiving system.In addition, accompanying drawing is schematic figure, and ratio of the relation between the thickness that should note each several part and the width, the thickness of each several part etc. is different with the device of reality, also comprises the size relationship part different with ratio each other each other certainly at accompanying drawing.In addition, below use the example of in the subject introducing device, using dispensing device, describe, be not limited to the subject gatherer certainly as the application of dispensing device but need not superfluous words for embodiment.
(embodiment 1)
At first, the introduction system into sample under test for embodiment 1 describes.Fig. 1 is the sketch map of population structure that the introduction system into sample under test of embodiment 1 is shown.As shown in Figure 1, the introduction system into sample under test of present embodiment 1 has: capsule type endoscope 2, and it is imported into the inside of subject 1, works as an example of dispensing device and subject introducing device; Receiving system 3, it is used to receive the wireless signal that sends from capsule type endoscope 2; Display device 4, it shows the content of wireless signal 3 that receive by receiving system, that send from capsule type endoscope 2; Pocket recording medium 5, it is used to carry out the information exchange between receiving system 3 and the display device 4.
Then, describe for receiving system 3.Fig. 2 is the schematic block diagram that the population structure of receiving system 3 is shown.At first, as illustrated in fig. 1 and 2, receiving system 3 constitutes to have: reception antenna 7a-7h, and it is used to receive the wireless signal that sends from capsule type endoscope 2; And external device (ED) 8, it carries out predetermined process for the wireless signal that receives via reception antenna 7a-7h.
External device (ED) 8 is to be used for carry out the device of predetermined process via any one wireless signal that receives of reception antenna 7a-7h.External device (ED) 8 particularly as shown in Figure 2, has: change-over switch 10, the reception antenna 7 that it uses when switching in the reception of wireless signal; Receiving circuit 11, it is for via the wireless signal that receives by change-over switch 10 selected reception antennas 7, carries out the reception of demodulation etc. and handles; Frequency filter 12, it carries out filtering to the signal from receiving circuit output; Ac-coupled circuit 13, it is for filtered signal, by AC coupling the carrying out regeneration of DC (direct current) composition; Signal processing circuit 14, it carries out predetermined process for the picture signal S1 from ac-coupled circuit 13 outputs; Control part 15, it carries out overall control, the output control by the picture signal S1 of signal processing circuit 14 input of passing through of going forward side by side; And storage part 16, it is based on the control store picture signal S1 of control part 15.Storage part 16 has picture signal S1 is stored into function in the pocket recording medium 5 shown in Figure 1.
In addition, external device (ED) 8 has the mechanism that is used for selecting to be suitable for to receive from reception antenna 7a-7h the antenna of wireless signal.Particularly, external device (ED) 8 has: the maintenance of sampling of sampling hold circuit 17, the receiving intensity signal S2 of the intensity of the wireless signal that it receives via reception antenna 7 expression; And A/D converter section 18, it will be converted to digital signal from the receiving intensity signal S2 as analogue signal of sampling hold circuit 17 outputs.In addition, in control part 15, be provided with the selection control part 15a of the work of when the sky line options, controlling.
Describe simply for sky line options work.At first, from the receiving intensity signal S2 of receiving circuit 11 output by sampling hold circuit 17 maintenances of sampling, input selection control part 15a under the state that is converted to digital signal by A/D converter section 18.Carry out respectively for selecting control part 15a to import the work of described receiving intensity signal S2 for each reception antenna 7a-7h, selecting control part 15a selective reception strength signal S2 is maximum reception antenna 7, and to change-over switch 10 export selected resultses.Change-over switch 10 is carried out the selection of reception antenna 7 according to the output of selecting control part 15a, afterwards, comprises the reception of the wireless signal of picture signal.
In addition, external device (ED) 8 has the supply of electric power portion 19 that is used for above-mentioned each structural element is provided driving electric.Constitute external device (ED) 8 by above structural element.
Then, describe for capsule type endoscope 2.In present embodiment 1, capsule type endoscope 2 is to be used for the device that dispensing device and subject introducing device as the present invention work, obtain in-subject information by importing to subject 1 inside, have the function that sends wireless signal for receiving system 3 in addition.
Fig. 3 is the block diagram that the schematic structure of capsule type endoscope 2 is shown.As shown in Figure 3, capsule type endoscope 2 has: the in-subject information obtaining section 21 that is used to obtain in-subject information; And be used for wireless transmission part 25 to the obtained in-subject information of receiving system 3 wireless transmissions.In addition, capsule type endoscope 2 has: signal processing part 22, and it carries out predetermined process, the output information main part for the in-subject information from 21 outputs of in-subject information obtaining section; Dummy argument composition efferent 23, the dummy argument composition that its generation/output is formed by AC signal; And addition portion 24, the information agent part and the dummy argument composition of its synthetic output respectively are to wireless transmission part 25 outputs.In addition, capsule type endoscope 2 has the synchronous timing generating unit 26 of driving timing that is used to make each above-mentioned structural element, has the battery 27 of the driving electric that is used to provide each structural element in addition.
In-subject information obtaining section 21 is to be used for obtaining the device of in-subject information when capsule type endoscope 2 is imported into the inside of subject 1.Obtain tested in-vivo image as in-subject information in present embodiment 1, in-subject information obtaining section 21 constitutes to have and is used to carry out the image mechanism that image is obtained.Particularly, in-subject information obtaining section 21 has: as the LED28 of Lighting Division work; The led drive circuit 29 of the driving of control LED28; As CCD30 to the image pickup part work of making a video recording by at least a portion in the zone of LED28 illumination; And the CCD drive circuit 31 of the driving of control CCD30.In addition, in present embodiment 1, use CCD as image pickup part, but be not to be necessary for said structure, also can wait to constitute image pickup part by CMOS.
In addition, also shown in Figure 4, the first half in 1 image duration is provided with between the sync period that is used to work asynchronously, and signal processing part 22 has the function of the corresponding synchronizing signal of TS between generation/output and sync period.The synchronous working required informational content of synchronizing signal when extracting view data the wireless signal of receiving from the receiving system side joint constitutes, and in present embodiment 1, also treats as the example of information agent composition S for this synchronizing signal.
Dummy argument composition efferent 23 is the devices that are used for the dummy argument composition that timing generation/output according to the rules is made of the AC signal with assigned frequency, as shown in Figure 4, has the function of the corresponding dummy argument composition of Th P during output and the horizontal blanking.Dummy argument composition efferent 23 for example is provided with and horizontal-drive signal and the synchronous enumerator of vertical synchronizing signal in advance, has the function of the count value of this enumerator as benchmark generation/output dummy argument composition P.
Dummy argument composition by the 23 generation/outputs of dummy argument composition efferent is the composition that is used to relax the unfavorable condition that produces when the processing of receiving system 3.Fig. 5 is the sketch map of an example that the structure of dummy argument composition is shown.As shown in Figure 5, as dummy argument composition, for example, can realize by the pulse signal that generates according to single-frequency by the 23 generation/outputs of dummy argument composition efferent.
In addition, average level and the average frequency of the dummy argument composition P by the 23 generation/outputs of dummy argument composition efferent can be arbitrarily.But, as optimal way, average level about dummy argument composition P, about each dummy argument composition P, be positioned under the average level of information agent composition S of the leading portion situation different with the average level of the information agent composition S that is positioned at back segment, be made as the value between the two, for example meansigma methods under the situation of unanimity, is made as and the two value about equally.In addition, for the average frequency of dummy argument composition P, under the different situation of the frequency of the information agent composition S of the frequency of the information agent composition S of leading portion and back segment, be made as the value between the two, for example meansigma methods under the situation of unanimity, is made as and the two value about equally.In the example of Fig. 5, under the prerequisite that the average level of establishing each information agent composition S and frequency do not change, use the average level and the value consistent pulse signal of frequency of dummy argument composition P with information agent composition S.
Fig. 6 is the sketch map that illustrates from the content of the signal of addition portion 24 output.As shown in Figure 5, the structure from the signal of addition portion 24 output is: dummy argument composition P has been inserted in the gap between the information agent part S of composing images signal, is in the state of having eliminated the gap as signal integral body.To transtation mission circuit 32 output, the processing that transtation mission circuit 32 is modulated etc. for signal is as shown in Figure 6 carried out wireless transmission via 33 pairs of receiving systems of transmitting antenna 3 to this signal from addition portion 24.
Then, receiving system 3 receives the wireless signal that sends from capsule type endoscope 2 via selected reception antenna 7.The receiving circuit 11 that the wireless signal that receives has by external device (ED) 8 carries out after the processing of demodulation etc., remove noise contribution by frequency filter 12, by ac-coupled circuit 13, under the regenerated state that has carried out the DC composition, input signal treatment circuit 14.Signal processing circuit 14 is carried out predetermined process, and by 15 pairs of storage parts of control part, 16 output image signal S1, storage part 16 the content stores of picture signal S1 in pocket recording medium 5.
Then, the advantage for the introduction system into sample under test of present embodiment 1 describes.As mentioned above, in the introduction system into sample under test of present embodiment 1, about the wireless signal that sends from capsule type endoscope 2 as dispensing device, be made as use with horizontal blanking during corresponding part inserted the signal of dummy argument composition.By adopting this structure, in the introduction system into sample under test of present embodiment 1, alleviated the burden of receiving system side, and had the advantage that in the processing of wireless signal, can remove noise contribution effectively.
Promptly, by with horizontal blanking during corresponding part insert dummy argument composition as AC signal, the wireless signal that sends from capsule type endoscope 2 can prevent and image line during corresponding part and and horizontal blanking during border between the corresponding part produce rapid voltage level change.Therefore, capsule type endoscope 2 has the advantage that can send following wireless signal, this wireless signal externally installs in 8 ac-coupled circuits that have 13, when realizing using the average level homogenization of AC coupled, can not produce because of instantaneous voltage changes the adverse effect that causes, alleviate the burden of receiving system side.
In addition, from utilizing the viewpoint of this advantage,,, then can use composition arbitrarily so long as form by the AC signal of regulation as the dummy argument composition that inserts to the gap.That is, compare,, can suppress the change of average level by AC signal is inserted as the dummy argument composition with the situation of the only corresponding flip-flop of use in the past with a certain side of high or Low.But, as more preferably mode, as mentioned above, become to be divided into the average level of information agent part roughly the same for dummy argument, be desirably consistent average level, in this case, the instantaneous voltage of degradation changes owing to can eliminate hurriedly basically, therefore can further lower the burden of ac-coupled circuit 13.
In addition, in present embodiment 1, go into dummy argument composition, have the advantage that can prevent from from the wireless signal that capsule type endoscope 2 sends, to comprise low-frequency component as AC signal by interpolation during horizontal blanking.Promptly, in structure in the past, under the situation of the gap that the flip-flop by only corresponding with high or Low fixed voltage constitutes, in wireless signal, comprise inevitably with horizontal blanking during the corresponding low-frequency component of time appearance during the space of waiting, in receiving system 3 sides, produce to enlarge the problem of passing through frequency band etc. of frequency filter 12.Relative therewith, in present embodiment 1, owing to insert the dummy argument composition that forms by AC signal, can not send wireless signal for the corresponding low-frequency component of time appearance during the wireless signal generation that sends and the space than narrow in the past frequency bandwidth to the gap.
Therefore, in receiving the receiving system 3 of wireless signal, for the frequency band that pass through of the frequency filter 12 that has in inside, compared with the past can the arrowbandization, pass through frequency band by constriction, have the advantage that can remove noise contribution more effectively.
And in present embodiment 1, the AC signal as constituting the dummy argument composition is made as the AC signal that use is made of single clock as shown in Figure 5.Under the situation that adopts said structure, can simplify the mechanism of dummy argument composition efferent 23, in addition, only extract the filtering mechanism of the frequency content corresponding by other setting with the frequency of single clock shown in Figure 5, can easily judge during the space, in present embodiment 1 for during the horizontal blanking.
In addition, can certainly use Fig. 5 structure in addition as the AC signal that constitutes the dummy argument composition.For example, replace single clock shown in Figure 5, can use pseudo noise (PN:Pseudo Noise) sign indicating number.Pseudo-noise code is the general name of the spreading code series used in the frequency spectrum diffusion, is using this yard series to form under the situation of dummy argument composition, constitutes the dummy argument composition by the AC signal of the frequency band with wide region.Using under the situation of pseudo-noise code like this, also can average frequency and average level be become and the equal value of information agent part by constituting, enjoy above-mentioned advantage.In addition, as the advantage of using pseudo-noise code, can list the peak value that when carrying out modulation treatment, lowers modulation spectrum, frequency spectrum is disperseed by transtation mission circuit 32.
(embodiment 2)
Then, the introduction system into sample under test for embodiment 2 describes.The introduction system into sample under test of present embodiment 2 constitutes, and replaces addition portion 24, and has switching part, and this switching part comes the gap between the information agent composition to insert the dummy argument composition by carrying out suitable switching for the signal to transtation mission circuit 32 outputs.
Fig. 7 is the block diagram that schematically shows the structure of the capsule type endoscope 35 that the introduction system into sample under test of present embodiment 2 has.As shown in Figure 7, the outfan that constitutes at signal processing part 22 and dummy argument composition efferent 23 of capsule type endoscope 35 has switching part 36.In addition, in present embodiment 2, the structural element common with embodiment 1 label/title as long as do not mention especially below, is and has the structure/function identical with embodiment 1.In addition, though omitted diagram, in present embodiment 2, also with embodiment 1 similarly introduction system into sample under test have receiving system 3, display device 4 and pocket recording medium 5.
Switching part 36 has for the signal component from signal processing part 22 and 23 outputs of dummy argument composition efferent, and timing according to the rules is to the function of the arbitrary signal component of transtation mission circuit 32 outputs.Particularly, switching part 36 has following function: according to the work clock that provides from timing generating unit 26, between sync period and during the image line in during the picture signal to the information agent composition of transtation mission circuit 32 output from signal processing part 22 outputs, the dummy argument composition that 32 outputs are exported from dummy argument composition efferent 23 to transtation mission circuit in during horizontal blanking.
When the information agent composition of exporting from signal processing part 22 being considered as main body then this work means for the insertion of the gap between the information agent composition of adjacency dummy argument composition.Under this meaning, the switching part 36 of present embodiment 2 becomes and inserts a unitary example as the dummy argument composition among the present invention and come work.Thus, even replacing addition portion 24 to use under the situation of switching parts 36, also can obtain the advantage same with embodiment 1.
In addition, as present embodiment 2, insert under the situation of dummy argument composition, become the timing of controlling insertion by switching part 36 by 36 pairs of information agent compositions of switching part.Therefore, dummy argument composition efferent 23 also can constitute not only during horizontal blanking, and always carries out the generation/output of dummy argument composition.But, in the example of present embodiment 2,, carry out the generation/output of dummy argument composition in similarly being made as only during horizontal blanking with embodiment 1 from the viewpoint of the required consumption electric power of the generation/output that prevents to increase the dummy argument composition.
(embodiment 3)
Then, the introduction system into sample under test for embodiment 3 describes.In present embodiment 3,, establish the in-subject information obtaining section and be formed on the different substrates with dummy argument composition efferent as the physical arrangement of capsule type endoscope.
Fig. 8 is the figure that schematically shows the structure of the capsule type endoscope that the introduction system into sample under test of present embodiment 3 has.As shown in Figure 8, in present embodiment 3, has following structure: on information agent output substrate 38, form in-subject information obtaining section 21, timing generating unit 26 and signal processing part 22, and, be formed on the dummy argument composition that is independent of 38 formation of information agent output substrate and insert on the substrate 39 for dummy argument composition efferent 23, addition portion 24 and wireless transmission part 25.In addition, between information agent output substrate 38 and dummy argument composition insertion substrate 39, dispose distribution 40,41, be connected electrically in the structural element that forms on each substrate.
Dummy argument composition efferent 23 has and generates and the information that obtains by in-subject information obtaining section 21 function of dummy argument composition independently.Therefore, under dummy argument composition efferent 23 and in-subject information obtaining section 21 are formed on situation on the same substrate, might in picture signal, sneak into the noise contribution that causes because of the parasitic capacitance that produces etc., cause because of the work of dummy argument composition efferent 23 between the two.Particularly, even, can not get rid of the probability of the influence of the work that is subjected to dummy argument composition efferent 23 fully because in-subject information obtaining section 21 is also carried out the camera work of next image etc. in during horizontal blanking.
Therefore, because in-subject information obtaining section 21 and dummy argument composition efferent 23 are formed on respectively independently on the substrate, a relevant side's work involves the probability of influence to the opposing party's work, is reduced to insignificant degree in present embodiment 3.By adopting this structure, the introduction system into sample under test of present embodiment 3 also has the advantage that in-subject information obtaining section 21 can obtain high-quality tested in-vivo image on the basis of the advantage of embodiment 1.
More than, use embodiment 1-3 to be illustrated, but the present invention should not be construed as and be defined in above-mentioned embodiment, so long as those skilled in the art can expect various embodiment, variation for the present invention.For example, in embodiment 1-3, constitute to horizontal blanking during corresponding gap insert the dummy argument composition, but also can constitute certainly the dummy argument composition is inserted in the gap of other generations.Promptly, the present invention can be for inserting the dummy argument composition from all gaps that produce between the information agent part of information agent output unit output, thereby reach its effect, therefore for the gap also can be with horizontal blanking during corresponding part part in addition.In addition, needn't insert the dummy argument composition, only can constitute the part of gap is inserted the dummy argument composition all gaps.
In addition, in embodiment 1-3,, be made as and use and the relevant information of tested in-vivo image that obtains by in-subject information obtaining section 21 as the information that comprises in the information agent part, but need not to be defined in this information, also can use image information information in addition.In addition, also need not to be defined in capsule type endoscope as the dispensing device of application of the present invention as the subject introducing device.
(embodiment 4)
Then, describe for embodiments of the present invention 4.In above-mentioned embodiment 1-3, insert the dummy argument pulse during sending the horizontal blanking of side or in the vertical blanking period at video signal, make the average DC level unanimity that sends signal, improve the receiving sensitivity of video signal.At this black-out intervals, in particularly during horizontal blanking, carry out CCD etc. solid-state imager read transmission, when inserting the dummy argument pulse in during this horizontal blanking, because fixed mode noise is sneaked in this dummy argument pulse in video signal, generation can not obtain the situation of good video information, but can obtain good video information in this embodiment always.
Fig. 9 is the sketch map that the population structure of radio-type in-subject information acquisition system is shown.This radio-type in-subject information acquisition system uses the example of capsule type endoscope as the subject introducing device.As shown in Figure 9, radio-type in-subject information acquisition system has: capsule type endoscope 103, and it is imported in the body of subject 101, takes intra-lumen image, and sends by the data that radio carries out video signal etc. to receiving system 102; Receiving system 102, it receives the intra-lumen image data from capsule type endoscope 103 wireless transmissions; Display device 104, the video signal that it receives according to receiving system 102 carries out the demonstration of intra-lumen image; And pocket recording medium 105, it is used to carry out the exchanges data between receiving system 102 and the display device 104.In addition, receiving system 102 has: wireless device 102a, and it has a plurality of antenna for receiving A1-An on the external surface that is attached to subject 101; And receive agent set 102b, and it is handled etc. for the wireless signal that receives via a plurality of antenna for receiving A1-An, and these devices can connect via adapter etc. with plugging.In addition, each antenna for receiving A1-An for example is installed in outer the putting that subject 101 can be worn, and subject 101 can be installed antenna for receiving A1-An by wearing this overcoat.In addition, in this case, antenna for receiving A1-An can plug with respect to overcoat.
At this, describe for capsule type endoscope 103.Figure 10 is the block diagram that schematically shows the structure of capsule type endoscope 103.As shown in figure 10, capsule type endoscope 103 has: the LED119 that is used to shine camera watch region when taking the inside of subject 101; The led drive circuit 120 of the driving condition of control LED119; CCD 121 as the imaging apparatus of being made a video recording in the zone of being shone by LED119; And the signal processing circuit 122 that the picture signal from CCD 121 outputs is processed into the shooting information of desired form.In addition, capsule type endoscope 103 has: the CCD drive circuit 125 that the driving condition of CCD 121 is controlled; View data that taken by CCD 121, after being handled by signal processing circuit 122 is modulated and generated the RF dispensing device 123 of RF signal; Transmission is from the transmitting antenna portion 124 of the RF signal of RF dispensing device 123 outputs; And the system, control circuit 126 of the work of control led drive circuit 120, CCD drive circuit 125 and RF dispensing device 123.In addition, CCD 121, signal processing circuit 122 and CCD drive circuit 125 are referred to as imaging circuit 127.
By having these mechanisms, capsule type endoscope 103 in being imported into subject 101 during, obtain image information by CCD 121 by the tested position of LED 119 illuminations.This image information that obtains is video signal by signal processing circuit 122 by signal processing, and in RF dispensing device 123, this video signal is converted into after the RF signal, sends to the outside via transmitting antenna portion 124.
In addition, capsule type endoscope 103 has the sensor part 135 of signal of the magnetic, light, electric wave etc. of the regulation of detecting; And the drive control part 134 of the driving of control system control circuit 126, this system, control circuit 126 is totally controlled the processing of led drive circuit 120, CCD drive circuit 125, RF dispensing device 123 and each one based on by sensor part 135 detected values.Sensor part 135 is for example waited by the pH pick off and realizes, and detect capsule type endoscope 103 and whether arrived tested intravital assigned position, based on this result, the driving of drive control part 134 each one of control.Thus, can suppress power consumption.
In addition, drive control part 134 is via the supply of electric power of 133 acceptance of the on and off switch in the power switch circuit 130 as the battery 140 of energy supply source.Battery 140 is for example realized by the coin shape battery of silver oxide etc.On and off switch 133 is the main power switch of capsule type endoscope 103.Power switch circuit 130 also has signal deteching circuit 131 and ON-OFF control circuit 132.Realize by reed switch as the signal deteching circuit 131 that detects from the external signal detecting unit of the signal of capsule type endoscope 103 outsides, by Magnet 150 with respect to reed switch approaching/away from carrying out switch.That is, by whether to the reed switch effect magnetic force carry out switch motion ON-OFF control circuit 132 according to control signal from signal deteching circuit 131, promptly switching signal is controlled, and the switch of on and off switch 133 is switched.The switch of the on and off switch of realizing by this Magnet 150 133 carries out before in importing subject, carries out the performance review of capsule type endoscope 103 etc.
At this, signal processing circuit 122 has dummy argument signal appendix 122a, the horizontal-drive signal and the vertical synchronizing signal of this dummy argument signal appendix 122a and video signal are synchronous, during vertical blanking period or the horizontal blanking (below, be called black-out intervals) in, the additional dummy argument pulse that is used to make the average DC level unanimity that sends signal.
On the other hand, drive control part 134 has set-up register 134a, and it is additional to maintain the dummy argument pulse of whether carrying out dummy argument signal appendix 122a in this set-up register 134a, and in the content of the dummy argument pulse of the additional hours that carries out the dummy argument pulse.The setting content of this set-up register 134a remains a plurality of setting patterns, sets by the selection of selecting configuration part 136, sets a setting pattern.Drive control part 134 is according to this setting pattern, the dummy argument signal of control dummy argument signal appendix 122a additional.
Figure 11 is the figure that is illustrated in an example of the setting content of setting among the set-up register 134a.As shown in figure 11, in set-up register 134a, store register value and dummy argument signal processing, maintain and corresponding 8 the dummy argument signal processing in register value " 0 "-" 7 ".Register value " 0 " is corresponding to not additional dummy argument Signal Processing, register value " 1 "-" 3 " have the shooting clock corresponding to handle, it is 1/2 times of readout clock of CCD121,1/4 times, the clock pulses of 1/8 times frequency is used as the dummy argument pulse, register value " 4 "-" 6 " are corresponding to 1/2 times the transfer clock of the numerical data with signal processing circuit 122,1/4 times, the clock pulses of 1/8 times frequency is used as the dummy argument pulse, and register value " 7 " is corresponding to successive black-out intervals being the repetition ON (high level) of unit, the alternate treatment (with reference to Figure 15) of OFF (low level).
At this, each dummy argument signal processing of setting for set-up register 134a describes.As shown in figure 12, the processing of image pickup signal has during 1 date processing of going and black-out intervals, reads the picture element signal of 1 row in black-out intervals from CCD 121.When selecting to have set register value " 0 ", in the not additional dummy argument pulse of this black-out intervals.
When register value is " 1 "-" 3 ", use the shooting clock to generate the dummy argument pulse as mentioned above.This dummy argument pulse in Figure 11, is set at 1/2,1/4,1/8 frequency for 1 frequency of the integral multiple branch of shooting clock.The shooting clock is the readout clock of image pickup signal, and by using this shooting clock, the dummy argument pulse can obtain with the shooting clock synchronously.At this moment, the rising of dummy argument pulse constantly t1 and the t2 constantly of descending be in have in the image pickup signal substantive Pixel Information during beyond the T during in (with reference to Figure 13).Thus, during in the information of T, substantively do not sneak into the noise that causes because of the dummy argument pulse, can send preferable image information, can make average DC level unanimity when the regeneration of receiver side by the additional of dummy argument pulse in addition, can obtain preferable image information.
In addition, when register value is " 4 "-" 6 ", be 1 clock setting of the integral multiple branch of transfer clock the dummy argument pulse as mentioned above.Be input under the situation of receiver side in this dummy argument pulse, receiver side uses PLL to wait this dummy argument pulse of doubling, thereby easily dateout is taken into the commutator pulse of usefulness.That is, this dummy argument pulse can make average DC level unanimity, and can effectively utilize the clock of this dummy argument pulse, and the data that easily generate receiver side are taken into the commutator pulse of usefulness.
In addition, when register value is " 7 ", alternately insert the pulse PH and the low level pulse PL (with reference to Figure 15) of high level at black-out intervals.In other words, can only make the black-out intervals that has inserted pulse PH is the ON state.In this case, the AC coupling circuit that has the above time constant of 2 row by receiver side is possessed can make the amplitude center of average DC level near this intermittent dummy argument pulse.
The additional set-up register 134a that has or not as the pattern of setting for type that has kept above-mentioned dummy argument pulse or dummy argument pulse, select configuration part 136 to select a setting pattern, thus can be flexibly and carry out additional with the corresponding dummy argument pulse of receiving system 102 sides rightly.In addition, when to select configuration part 136 be as shown in figure 11 set-up register 134a, can realize by for example 3 DIP switch.
In this embodiment 4, be provided with the set-up register 134a of a plurality of setting patterns of maintenance and dummy argument pulse correlation in capsule type endoscope 103 sides as dispensing device, by by selecting configuration part 136 to set this setting pattern, additional the having or not or various dummy argument pulse additional that can carry out the dummy argument pulse.In this case, use the shooting clock to generate the dummy argument pulse, by the change point of the rising edge of dummy argument pulse, trailing edge etc. is set in substantive picture element signal in addition during in, in image information, do not sneak into noise, and can make average DC level unanimity.In addition, generate the dummy argument pulse by using data transfer clock, the data that can easily generate receiver side are taken into uses clock, and can make average DC level unanimity.In addition,, thereby can in image information, not sneak into noise ground, easily make average DC level unanimity the additional opposite polarity pulse of each black-out intervals.
(embodiment 5)
In above-mentioned embodiment 4, constitute as the dummy argument pulse of the optional majority kind of capsule type endoscope 103 sides of dispensing device and insert in the black-out intervals, but in present embodiment 5, constitute in receiving system 102 sides and can insert the dummy argument pulse.In addition, system structure is identical with radio-type in-subject information acquisition system shown in Figure 9.
Figure 16 is the block diagram that the structure of receiving system shown in Figure 9 102 is shown.Wireless device 102a receives the wireless signal that sends from capsule type endoscope 3, and is demodulated into baseband signal.As shown in figure 16, wireless device 102a has: change-over switch SW, and it optionally switches any one the connection hand-off process among antenna for receiving A1-An; And receiving circuit 111, it is connected the back level of this change-over switch SW, and the wireless signal that next free change-over switch SW is switched the antenna for receiving A1-An that connects amplifies, demodulation.
Reception agent set 102b receives wireless device 102a demodulated baseband signal and handles.As shown in figure 16, receiving agent set 102b has: the signal processing circuit 112 and the A/D converter section 113 that are connected the back level of receiving circuit 111; The display part 114 that view data after handling by signal processing circuit 112 is shown; The storage part 115 of storing various information; Pocket recording medium 105; Control the control part C of these each structure divisions; And to the supply of electric power portion 116 that receives agent set 102b and wireless device 102a supply electric power.Control part C has the switch control portion Ca of the switching controls of carrying out antenna.
111 pairs of wireless signals from change-over switch SW output of receiving circuit amplify, and the baseband signal S1 after signal processing circuit 112 output demodulation, the receiving intensity signal S2 of the signal intensity of the wireless signal after the 113 output expressions of A/D converter section are amplified in addition.Be stored in the portable type information recording medium 105 by control part C by the view data after signal processing circuit 112 processing, and on display part 114, carry out pictorial display as required.The receiving intensity signal S2 that is converted to digital signal by A/D converter section 113 is taken into control part C.Switch control portion Ca is according to switching this receiving intensity signal S2 that antenna for receiving A1-An obtains successively, selection is with the antenna for receiving of the signal intensity reception of maximum, as the antenna for receiving that is used to obtain view data, and switch to the switching signal S3 of this antenna to change-over switch SW output indication.In addition, control part C and selected antenna for receiving accordingly, the signal intensity that each antenna for receiving is received is stored in the portable type information recording medium 105 with view data.The signal intensity of each antenna for receiving of this storage is used as the information that is used to calculate capsule type endoscope 103 position in vivo when receiving view data.
Figure 17 is the block diagram that the detailed structure of receiving circuit 111 is shown.As shown in figure 17, the wireless signal of importing from change-over switch SW is transfused to the demodulator circuit 161, carries out down coversion, is demodulated into analog baseband signal, after amplifying by amplifier 162, inputs to add circuit 163.
On the other hand, import mimic baseband signal from amplifier 162 branches, generate the baseband signal of numeral, and export to blanking testing circuit 172 with reference to binarization circuit 171.Blanking testing circuit 172 detects black-out intervals based on the baseband signal imported, beyond black-out intervals during to the signal of impulse circuit 173 output indication shieldings.The pulse signal that impulse circuit 173 generates as the basis of dummy argument pulse is exported the dummy argument pulse during beyond the shielding of blanking testing circuit 172 inputs.Gain/offset adjusting circuit 174 is adjusted the gain and the skew of dummy argument pulse, makes the baseband signal that is suitable for being input to from amplifier 162 add circuit 163 from the dummy argument pulse of impulse circuit 173 inputs, to add circuit 163 these adjusted dummy argument pulses of output.
163 pairs of analog baseband signals from amplifier 162 inputs of add circuit add from the simulation dummy argument pulse of gain/offset adjusting circuit 174 inputs, and export to low pass filter (LPF) 164.Its result, the signal of exporting from LPF164 is inserted with the dummy argument pulse whole black-out intervals.This baseband signal of having inserted the dummy argument pulse is converted into binary signal by binarization circuit 165, and to signal processing circuit 112 outputs.In signal processing circuit 112, because be inserted with the dummy argument pulse at all black-out intervals, therefore average DC level unanimity can obtain preferable image information.
At this, describe for the variation of present embodiment 5.In receiving circuit shown in Figure 17 111, become and use shielding processing and add circuit 163 to be inserted with the state of dummy argument pulse at whole black-out intervals, in this variation, formed and used switch in whole black-out intervals, to be inserted with the state of dummy argument pulse.
Figure 18 is the block diagram of detailed structure of receiving circuit 111 that the variation of this embodiment 5 is shown.As shown in figure 18, the wireless signal of importing from change-over switch SW inputs to demodulator circuit 161, carries out down coversion, is demodulated into mimic baseband signal, after amplifying by amplifier 162, inputs to switch 180.
On the other hand, from amplifier 162 branches input analog baseband signal, generate the baseband signal of numeral with reference to binarization circuit 171, and to 172 outputs of blanking testing circuit.Blanking testing circuit 172 detects black-out intervals according to the baseband signal of being imported, by the switching controls of carrying out switch 180 that has or not of black-out intervals.At this, the pulse signal that impulse circuit 173 generates as the basis of dummy argument pulse is to 174 outputs of gain/offset adjusting circuit.Gain/offset adjusting circuit 174 is to the dummy argument pulse of on-off circuit 180 outputs from impulse circuit 173 inputs.
Switch 180 carries out switching controls, do not detecting under the situation of black-out intervals, to the baseband signal of LPF164 output, detecting under the situation of black-out intervals, to the dummy argument pulse of LPF164 output from 174 inputs of gain/offset adjusting circuit from amplifier 162 inputs.
Whole black-out intervals, be inserted with the dummy argument pulse from the baseband signal of LPF164 output.This baseband signal that is inserted with the dummy argument pulse is converted into binary signal by binarization circuit 165, and to signal processing circuit 112 outputs.In signal processing circuit 112, because be inserted with the dummy argument pulse at all black-out intervals, therefore average DC level unanimity can obtain preferable image information.
In present embodiment 5, even sending side does not add under the situation of dummy argument signal at black-out intervals, because whole black-out intervals has been added the dummy argument signal at receiver side, therefore can make average DC level unanimity reliably for various received signals, can obtain preferable image information always.
Utilizability on the industry
As mentioned above, dispensing device of the present invention, receive device and introduction system into sample under test for Be sent to the transmission dress of the wireless signal of the information main part that comprises less video information etc. to the outside Put, receive the reception device of this wireless signal and be applied to have this dispensing device or receive and fill The introduction system into sample under test of the subject introducing device of putting is useful, is suitable for capsule-type especially Endoscope is as the introduction system into sample under test of dispensing device.
Claims (21)
1. dispensing device, it is sent to the wireless signal that comprises the information agent part less to the outside, it is characterized in that this dispensing device has:
Information agent output unit, its output comprise the signal of described information agent part;
The dummy argument component output unit, the dummy argument composition that its output is formed by the AC signal more than 1 of the frequency content with regulation;
Dummy argument inserts the unit, and it inserts described dummy argument composition at least a portion of the gap that does not have described information agent part in the signal that comprises described information agent part; And
The wireless transmission unit, it has inserted signal described dummy argument composition, that comprise described information agent part to outside wireless transmission.
2. dispensing device according to claim 1 is characterized in that, described dummy argument composition is formed by the AC signal that has with the consistent basically average level of the average level of the signal that comprises described information agent part.
3. dispensing device according to claim 1 is characterized in that, described dummy argument composition is formed by the AC signal that has with the consistent basically average frequency of the average frequency of the signal that comprises described information agent part.
4. dispensing device according to claim 1 is characterized in that, described dummy argument composition is formed by the fixed model of regulation.
5. dispensing device according to claim 1 is characterized in that, described dummy argument composition is formed by the clock signal with fixed frequency.
6. dispensing device according to claim 1 is characterized in that, described dummy argument composition uses pseudo-noise code to form.
7. dispensing device according to claim 1, it is characterized in that, described dummy argument inserts the unit and has adder unit, and this adder unit synthesizes from the described information agent part of the signal of described information agent output unit output and the described dummy argument composition of exporting from described dummy argument component output unit.
8. dispensing device according to claim 1, it is characterized in that, described dummy argument inserts the unit and has switch unit, and this switch unit switches the signal component to the output of described wireless transmission unit according to predetermined timing between described information agent part and described dummy argument composition.
9. dispensing device according to claim 1 is characterized in that, the signal that comprises described information agent part is a picture signal, during described gap is horizontal blanking.
10. dispensing device according to claim 1 is characterized in that, this dispensing device has the function that obtains in-subject information in the importing subject,
Described information agent partly comprises described in-subject information and forms.
11. introduction system into sample under test, this introduction system into sample under test has subject introducing device and receiving system, this subject introducing device is imported into the inside of subject, sends the wireless signal that comprises the information that obtains to the outside, this receiving system receives the wireless signal that sends from described subject introducing device, it is characterized in that
Described subject introducing device has:
Information agent output unit, its output comprise the signal of information agent part, and described information agent partly comprises obtained in-subject information;
The dummy argument component output unit, the dummy argument composition that its output is formed by the AC signal more than 1 of the frequency content with regulation;
Dummy argument inserts the unit, and it inserts described dummy argument composition at least a portion of the gap that does not have described information agent part in the signal that comprises described information agent part; And
The wireless transmission unit, it has inserted signal described dummy argument composition, that comprise described information agent part to outside wireless transmission,
Described receiving system has:
Reception antenna; And
External device (ED), it receives the wireless signal that sends from described subject introducing device via described reception antenna, and extracts described in-subject information from the wireless signal that receives.
12. a dispensing device is characterized in that, this dispensing device has:
Dummy argument signal extra cell, during its horizontal blanking in the video signal of taking and in the black-out intervals of at least one side in the vertical blanking period, the additional dummy argument signal that the average DC level that sends signal is provided; And
Setup unit, it has or not described dummy argument signal additional at least or the content of carrying out additional described dummy argument signal is set,
This dispensing device carries out the additional of described dummy argument signal according to the setting content of described setup unit in described black-out intervals.
13. dispensing device according to claim 12 is characterized in that, described setup unit has:
The holding unit that the content that described setup unit is set keeps as mode of operation; And
Select the selected cell of described mode of operation.
14. dispensing device according to claim 12 is characterized in that, the setting content of described dummy argument signal comprises the frequency of described dummy argument signal.
15. dispensing device according to claim 12 is characterized in that, described dummy argument signal is the dummy argument pulse, and the rising edge of this dummy argument pulse, the moment of trailing edge are arranged in the part beyond the image information of the signal that imaging apparatus reads successively.
16. dispensing device according to claim 12 is characterized in that, integer/one's that described dummy argument signal is the readout clock of imaging apparatus clock signal.
17. dispensing device according to claim 12 is characterized in that, integer/one's that described dummy argument signal is a data transfer clock clock signal.
18. dispensing device according to claim 12 is characterized in that, alternately additional opposite polarity high level signal and low level signal during the content of described dummy argument signal is included in during the successive described horizontal blanking.
19. the receiving system of the video signal that a reception sends from dispensing device is characterized in that this receiving system has:
Detecting unit, it detects during the interior horizontal blanking of described video signal or vertical blanking period; And
Extra cell, it is the additional dummy argument signal that the average DC level that sends signal is provided in described black-out intervals.
20. receiving system according to claim 19 is characterized in that,
Described extra cell has:
Generate the dummy argument signal generating unit of dummy argument signal; And
Switch unit, its in the detected black-out intervals of described detecting unit, switch output from the dummy argument signal of described dummy argument signal generating unit as described video signal.
21. receiving system according to claim 19 is characterized in that,
Described extra cell has:
Generate the dummy argument signal generating unit of dummy argument signal; And
Adder unit, it is exported being added to from the dummy argument signal of described dummy argument signal generating unit on the described video signal in the detected black-out intervals of described detecting unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004139891A JP4025749B2 (en) | 2004-05-10 | 2004-05-10 | Transmitting apparatus and in-subject introduction system |
| JP139891/2004 | 2004-05-10 | ||
| JP263003/2004 | 2004-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1950019A CN1950019A (en) | 2007-04-18 |
| CN100473325C true CN100473325C (en) | 2009-04-01 |
Family
ID=35466816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800148864A Expired - Fee Related CN100473325C (en) | 2004-05-10 | 2005-05-10 | Transmitting apparatus, receiving apparatus, and body-insertable system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4025749B2 (en) |
| CN (1) | CN100473325C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4472585B2 (en) | 2005-06-14 | 2010-06-02 | オリンパス株式会社 | Transmission device and in-subject information acquisition system |
| JP5284592B2 (en) * | 2007-02-19 | 2013-09-11 | オリンパス株式会社 | In-subject information acquisition system |
| JP5259174B2 (en) * | 2007-12-25 | 2013-08-07 | オリンパスメディカルシステムズ株式会社 | Transmission / reception system |
| JP5290596B2 (en) * | 2008-02-29 | 2013-09-18 | 株式会社日立メディコ | Biological light measurement device |
| JP2013188422A (en) * | 2012-03-15 | 2013-09-26 | Seiko Epson Corp | Measuring device |
| JP2022122203A (en) * | 2021-02-09 | 2022-08-22 | ソニー・オリンパスメディカルソリューションズ株式会社 | Controller, medical observation system, control method and program |
-
2004
- 2004-05-10 JP JP2004139891A patent/JP4025749B2/en not_active Expired - Fee Related
-
2005
- 2005-05-10 CN CNB2005800148864A patent/CN100473325C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005319097A (en) | 2005-11-17 |
| CN1950019A (en) | 2007-04-18 |
| JP4025749B2 (en) | 2007-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100473325C (en) | Transmitting apparatus, receiving apparatus, and body-insertable system | |
| CN101198276B (en) | Receiving apparatus, transmitting apparatus and in-vivo information acquiring apparatus | |
| AU2005204032B2 (en) | Receiver apparatus, transmitter apparatus, and transmitting/receiving system | |
| CN101282678B (en) | In-vivo information acquiring apparatus | |
| CN101868174A (en) | Examinee-in-vivo insertion device and examinee-in-vivo information acquisition system | |
| WO2006051817A1 (en) | Imaging device | |
| CN100473324C (en) | Receiving apparatus, transmitting apparatus and receiving system | |
| US7931585B2 (en) | Transmitting apparatus, receiving apparatus, and body-insertable apparatus system | |
| CN100377686C (en) | Intra-subject device and related medical device | |
| JP2015119762A (en) | Imaging system, and endoscope apparatus | |
| JP4523376B2 (en) | Receiving apparatus and receiving system | |
| WO2006028220A1 (en) | Receiving device, and system for introduction into specimen under test | |
| JP2006075366A (en) | Receiver and transmitter | |
| JP4009612B2 (en) | Receiver | |
| JP2005253797A (en) | Receiver, transmitter and transmitting/receiving system | |
| JP2005260751A (en) | Receiver, transmitter and receiving/transmitting system | |
| JP4383490B2 (en) | Imaging device | |
| JP4892065B2 (en) | Receiver and in-subject information acquisition system | |
| JP2005260750A (en) | Receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20170510 |