CN1079621C - Image pickup device and its signal processor - Google Patents
Image pickup device and its signal processor Download PDFInfo
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- CN1079621C CN1079621C CN95197767A CN95197767A CN1079621C CN 1079621 C CN1079621 C CN 1079621C CN 95197767 A CN95197767 A CN 95197767A CN 95197767 A CN95197767 A CN 95197767A CN 1079621 C CN1079621 C CN 1079621C
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Abstract
The present invention provides an image pickup device with a freely replaced image pickup head and a new simulation interface. The image pickup head (1) is composed of an image pickup device (11), a drive circuit (14), and a synchronous signal generation circuit (18); color and luminance signal generation section (6) is composed of an image pickup processing circuit (51), a Y/C separation and demodulation processing circuit (57), and a signal discrimination circuit (56). Output signals from the image pickup head (1) are appended with synchronous signals, and the synchronous signal is used for discriminating the signal kind, so the image pickup processing, and the switching of the Y/C separation and the demodulation processing are carried out.
Description
Technical field
The present invention relates to solid camera head, particularly with cable extension camera part and colour and luminance signal generation camera head and signal processing apparatus thereof partly.
Background technology
As IEEE Trans., CE-33,2, P.85 " the CCD micro color video camera " delivered on (1987) is described, and prior art is often the cell mesh that comprises signal processing (below be designated as colour and luminance signal produce part) with comprise the cell mesh (below be designated as the camera part) of picture pick-up device use combines.
In the prior art, owing to can use cable extension camera part and colour and luminance signal to produce part, even colour and luminance signal generating unit are divided in the Inner portion of personal computer, because the camera part is not fixed in the personal computer, so available any angle shooting, but, use a plurality of video cameras, the time divided image data send under the situation of personal computer, owing to must be contained in the inside of personal computer to colour that just is same as the camera partial amt and luminance signal generation part Inner, thereby will consider the situation that cost increases.
Disclosure of an invention
The object of the present invention is to provide the camera head that freely to replace camera and be furnished with new analog interface.For achieving the above object, the present invention's appended synchronization signal in from the output signal of camera part.By the additional synchronizing signal identical in from the output signal of camera part with the standard analog interface, just can the same output signal of handling picture pick-up device with the TV signal of modes such as NTSC, PAL, and needn't be furnished with the later signal processing of a plurality of cameras, the camera of any number can be connected a colour and luminance signal and produce on the part, and can freely replace camera.Like this, just needn't can realize the reduction of circuit scale to each camera configuration signal treatment circuit.Therefore, also can reduce cost significantly.
And, sometimes be furnished with on the camera head of above-mentioned new-type analog interface, not only want to connect camera part, but also want to connect VTR and the one-piece type video camera of VTR of exporting TV signal such as NTSC/PAL, at this moment, because the user must distinguish from the signal of camera or from TV signal, thereby there is the new problem of using inconvenience.For addressing this problem, the object of the present invention is to provide to obtain not treat with a certain discrimination from the signal of camera with from the camera head of TV signal.
For achieving the above object, camera head of the present invention comprises: camera part and described colour and brightness produce circuit and coupling part, and the camera part possesses at least: picture pick-up device; Drive the timing generation circuit of this picture pick-up device; Produce the circuit for generating synchronous signals of synchronizing signal according to the timing of this timing generation circuit; The add circuit of the synchronizing signal addition that will produce from output signal and this circuit for generating synchronous signals of this picture pick-up device; With by dot sequency output from and added the output device of output signal of this picture pick-up device of this synchronizing signal, described colour and brightness produce circuit to be possessed at least: the input unit of the outside signal that comes of input; Judging circuit, the signal that differentiation is imported by this input unit are output signal or the TV signal from described Unit the 1st; Camera signal processing circuit is from the output signal generation colour signal and the luminance signal of described Unit the 1st; Y/C and demodulation process circuit produce colour signal and luminance signal from this TV signal; And commutation circuit, removably connect described camera part and described colour and brightness according to the coupling part of the hand-off process as a result of this judging circuit and produce circuit, produce the circuit input from described camera signal and TV signal partly to described colour and brightness.According to the result of described judging circuit, from the signal of camera part, in camera signal processing circuit, handle, from the VTR of outgoing television signal or the signal of the one-piece type video camera of VTR, in Y/C and demodulation process circuit, handle.Utilize this structure, since from above-mentioned additional synchronizing signal automatically judgment signal be the output signal or the TV signal of camera part, so available same input terminal is imported, the user needn't judge that the kind of signal is as long as one connect and can use simply, and easy to use, can suppress the misoperation that causes because of connection error.
Fig. 1 is the figure of the whole example that constitutes of expression the present invention.
Fig. 2 is the figure of an example partly constituting of the camera of presentation graphs 1.
Fig. 3 is the colour of presentation graphs 1 and the figure that luminance signal produces an example of part formation.
Fig. 4 is the schematic diagram of expression from an example of the output signal of camera, (a) expression pixel mixed mode figure, (b) figure of expression camera output signal.
Fig. 5 is expression from the camera of Fig. 1 part and has added the figure of an example of the output signal of synchronizing signal.
Fig. 6 is the figure of whole another example that constitutes of expression the present invention.
Fig. 7 represents to be produced by the colour of Fig. 6 and luminance signal the figure of an example that partly constitutes.
Fig. 8 is the figure of another example of partly constituting of the camera of presentation graphs 1 and Fig. 6.
Fig. 9 is the colour of presentation graphs 1 and Fig. 6 and the figure that luminance signal produces another example of part formation.
Figure 10 is the figure of an example of level sampling period and the pixel synchronous signal cycle of expression picture pick-up device, and (a) expression is from the figure of camera output signal partly; (b) expression pixel mixing picture pick-up device ideograph.
Below, with Fig. 1,2,3,4 and Fig. 5 the 1st embodiment of the present invention is described.Fig. 1 is the figure of the whole embodiment who constitutes of expression the present invention, Fig. 2 is the figure of the embodiment that partly constitutes of the camera of presentation graphs 1 embodiment, Fig. 3 is the figure of an embodiment constituting of the signal processing of presentation graphs 1 embodiment, and Fig. 4 and Fig. 5 are the figure of expression from an embodiment of the output signal of the camera part of Fig. 1 embodiment.
As shown in Figure 1, present embodiment is made of the input signal terminal 4 and the monitor 3 of signal output terminal 2, cable 5, colour and luminance signal generation part 6, colour and the luminance signal generation part 6 of camera part 1, camera part 1, connect the signal output terminal 2 of camera part 1 and the signal input terminal 4 of colour and luminance signal generation part 6 with cable 5, be presented at the signal that produces in colour and the luminance signal generation part 6 with monitor 3.
As shown in Figure 2, camera part 1 comprises lens 10, picture pick-up device 11, CDS (correcting two samplings) circuit 12, drive the timing generation drive circuit 14 of picture pick-up device, produce circuit 15 and vertical synchronizing signal by horizontal-drive signal and produce the synchronous signal generating circuit 18 that circuit 16 and pixel circuit for generating synchronous signals 17 constitute, and the add circuit 13 that the synchronizing signal that output signal and synchronous signal generating circuit 18 from picture pick-up device 11 produce is carried out add operation.And, the output of picture pick-up device 11 is connected with the input of CDS circuit 12, one in four inputs of the output of CDS circuit 12 and add circuit 13 is connected, the output of add circuit 13 is connected with the signal output terminal 2 of camera 1, in two outputs of drive circuit 14 one is connected with picture pick-up device 11, another produces circuit 15 with horizontal-drive signal respectively and is connected horizontal-drive signal generation circuit 15 with the input that vertical synchronizing signal produces circuit 16 and pixel circuit for generating synchronous signals 17, the corresponding output that vertical synchronizing signal produces circuit 16 and pixel circuit for generating synchronous signals 17 is connected with the input of add circuit 13.
As shown in Figure 3, colour and luminance signal produce part 6 and comprise by A/D change-over circuit 50, colour signal produces the camera signal processing circuit 51 of circuit 53 and luminance signal producing circuits 52 formations, synchronizing separator circuit 55 and clock generation circuit 54, and, signal input terminal 4 is connected with the input of A/D change-over circuit 50 and synchronizing separator circuit 55, the output of synchronizing separator circuit 55 is connected with the input of clock generation circuit 54, the output of clock generation circuit 54 and colour signal produce circuit 53, the clock input of luminance signal producing circuits 52 and A/D change-over circuit 50 connects, and the output of A/D change-over circuit 50 is connected with the input that colour signal produces circuit 53 and luminance signal producing circuits 52.
Present embodiment converts the light through lens 10 incidents to the signal of telecommunication with picture pick-up device 11, and reduces noise treatment with 12 pairs of these signals of CDS circuit.Frequency division is carried out in the output pulse of 18 pairs of drive circuits 14 of synchronous signal generating circuit, be created in once become on the part during the horizontal retrace line low level horizontal-drive signal, have on the part during the vertical retrace line become low level vertical synchronizing signal for several times and on the part during the horizontal retrace line pixel cycle with picture pick-up device produce for several times high level and low level pixel synchronizing signal repeatedly.Add circuit 13, to carrying out reducing the signal of noise processed with CDS circuit 12, the synchronizing signal that appended synchronization signal generating circuit 18 produces, and to signal output terminal 2 output signals of camera part 1.If the picture pick-up device that uses pixel arrangement such shown in Fig. 4 (a) is as picture pick-up device 11, so then by camera part 1 output signal, at (G+Cy) shown in Fig. 4 (b) and (Mg+Ye), additional synchronizing signal as shown in Figure 5 on the signal of (Mg+Cy) and dot sequency (G+Ye).Among Fig. 5,30 expression horizontal-drive signals, the output signal of 31 expression pixel synchronizing signals, 32 expression picture pick-up devices.And colour and luminance signal produce part 6, and from separating synchronous composition from the output signal of camera part 1, as benchmark, clock generation circuit 54 generates clock with this synchronous composition in synchronizing separator circuit 55.A/D change-over circuit 50 with described clock synchronization, will convert digital signal to from the output signal of camera part 1, and colour signal produces circuit 53 and luminance signal producing circuits 52 generates two color difference signals and luminance signal from described digital signal.And, colour and luminance signal are produced the signal that part 6 produces suitably handle, and on monitor 3 display image.
In the present embodiment, owing in from the output signal of camera part 1, add synchronous composition arranged, can carry out the processing that camera part 1 and colour and luminance signal produce part 6 fully independently, so on colour and luminance signal generation part 6, can freely connect a plurality of cameras or diverse camera.According to this configuration, each camera part can be attached signal processing respectively, can seek to reduce circuit scale and reduce cost.And, because producing part 6, colour and luminance signal can produce the clock that is necessary from the synchronizing signal that is attached on the camera, connect the holding wire that camera and colour and luminance signal produce part 6 so can shorten.Also have,, know the correct pixel location of each color pixel, so separablely go out correct color by utilizing pixel synchronizing signal as the synchronizing signal in pixel cycle.
Utilize the 6th figure below, the 7th figure and the 10th figure illustrate the second embodiment of the present invention.The 6th figure represents whole another embodiment that constitutes of the present invention, the 7th figure represents the colour of embodiment of the 6th figure and the embodiment that luminance signal produces the formation of part, and Figure 10 is the level sampling period of the relevant picture pick-up device of expression and the schematic diagram of pixel synchronous signal cycle.In the present embodiment, attached with identical sequence number, no longer explanation for the component parts identical with first embodiment.
Present embodiment is by two camera parts 1, the one-piece type video camera 81 of VTR, VTR80, commutation circuit 82 and colour and luminance signal produce part 6 and constitute, wherein any signal of two camera parts 1 and one-piece type video camera 81 of VTR and VTR80, select through commutation circuit 82, input color and luminance signal produce part 6.By commutation circuit 82 is set, can under the state that connects a plurality of cameras and VTR etc., selects the signal of hope simultaneously, and obtain data with time-sharing format.Two cameras 1 are and the camera of same structure embodiment illustrated in fig. 2, and it is identical with embodiment shown in Figure 3 that colour and luminance signal produce part 6, and signal discrimination circuit 56 separates with Y/C and demodulation process circuit 57 and commutation circuit 58 but appended.Colour and luminance signal produce part 6 and comprise A/D change-over circuit 50, camera signal processing circuit 51, and Y/C separates and demodulation process circuit 57, change-over circuit 58, signal discrimination circuit 56, synchronizing separator circuit 55, clock generation circuit 54.And, signal input terminal 4 is connected with the input of A/D change-over circuit 50 and synchronizing separator circuit 55, the output of synchronizing separator circuit 55 is connected with the input of clock generation circuit 54 with signal discrimination circuit 56, the output of clock generation circuit 54 and camera signal processing circuit 51, Y/C separates and demodulation process circuit 57, signal discrimination circuit 56, the clock input of A/D change-over circuit 50 connects, the output of A/D change-over circuit 50 separates with Y/C with camera signal processing circuit 51 and the signal input of demodulation process circuit 57 is connected, and according to the differentiation result of signal discrimination circuit 56, commutation circuit 58 switches that output camera signal processing circuits 51 separate with Y/C and the output signal of demodulation process circuit 57.Have again, in the present embodiment, switch the processing of output for utilizing commutation circuit 58, but commutation circuit is arranged on that camera signal processing circuit 51 separates with Y/C and the input of demodulation process circuit 57 before, camera signal processing circuit 51 separate with Y/C and demodulation process circuit 57 in carry out switched input signal and handle and also be fine.
In the present embodiment, signal discrimination circuit 56 is judged the kind of input signal from the signal of pixel synchronizing signal or burst signal part, and in input during from the output signal of camera part 1, camera signal processing circuit 51 produces luminance signal and two color difference signals, when the TV signal of input one-piece type video camera of VTR or VTR etc., Y/C separates and demodulation process circuit 57 brightness signal separations and modulated color signal, then, this modulated color signal of demodulation on base band generates two color difference signals.
The pixel synchronizing signal is during horizontal retrace line as shown in figure 10, this signal is as the signal of the 2 doubling time 2T of picture pick-up device level sampling period T, and picture pick-up device uses, and makes above-mentioned cycle 2T be different from cycle as the color subcarrier cycle in burst signal cycle.
In the present embodiment, because signal discrimination circuit 56 judges it is TV signal or from the signal of camera part 1 according to the frequency of pixel synchronizing signal or burst signal part, control colour and luminance signal produce the hand-off process of part 6, so do not rely on input signal, can produce general normal brightness signal and color difference signal yet.And, utilize an input terminal, can import different types of signal, the user needn't judge that signal is a TV signal or from the signal of camera, as long as simple the connection.And, owing to the misoperation that can not produce, so have the effect that greatly improves ease of use because of connection error.
And, if commutation circuit is set, can freely connect the camera part, just needn't join a plurality of signal processors that do not have camera part back, become by diverter switch and can produce the arbitrarily individual camera part of connection on the part at a colour and luminance signal.Promptly do not have a plurality of signal processings, can timesharing ground input data.Like this, owing to can reduce signal processing circuit, thereby can realize the reduction of circuit scale.And, also can reduce cost significantly.
Present embodiment can obtain identical with first embodiment in fact effect.
Below, with Fig. 8 the third embodiment of the present invention is described.Present embodiment is another embodiment relevant with camera part 1 among first and second embodiment.In the present embodiment, attached with identical sequence number, no longer explanation to the component parts identical with first embodiment.
Present embodiment comprises lens 10, picture pick-up device 11, CDS circuit 12, AGC (automatic gain control) circuit 18 of control signal gain, add circuit 13, drive circuit 14, produce the synchronous signal generating circuit 27 that circuit 25 and NTSC vertical synchronizing signal generation circuit 26 and pixel circuit for generating synchronous signals 17 constitute by the NTSC horizontal-drive signal, aperture 24, aperture position testing circuit 19, aperture drive circuit 20, level sensitive circuit 21, microcomputer 23, serial communication interface 22 and outside microcomputer 7.And, the output of picture pick-up device 11 is connected with the input of CDS circuit 12, the output of CDS circuit 12 is connected with the input of agc circuit 18, one of them of the input of the output of agc circuit 18 and level sensitive circuit 21 and four inputs of add circuit 13 is connected, the output of add circuit 13 is connected with the signal output terminal 2 of camera part 1, an input with picture pick-up device 11 in two outputs of drive circuit 14 is connected, another then produces circuit 25 with the NTSC horizontal-drive signal respectively and is connected with the input that the NTSC vertical synchronizing signal produces circuit 26 and pixel circuit for generating synchronous signals 17, horizontal-drive signal produces circuit 15 and is connected with the input of add circuit 13 with vertical synchronizing signal generation circuit 16 and pixel circuit for generating synchronous signals 17 output separately, the output of level sensitive circuit 21 and aperture position testing circuit 19 inputs to microcomputer 23, and microcomputer 23 connects into so that by agc circuit 18 and aperture drive circuit 20 control apertures.And, connect into by serial line interface 22 can with outer part microcomputer 7 two-way communications.
Present embodiment, convert the light of scioptics 10 incidents to the signal of telecommunication with picture pick-up device 11, with CDS circuit 12 this signal is reduced noise processed, then, on the state of the aperture 24 that detects with aperture position detecting circuit 19 and basis with the signal level of level sensitive circuit 21 detections, gain with microcomputer control agc circuit 18, thereby the output signal level of control camera part 1 makes it constant, add circuit 13 will be to the output signal of agc circuit 18, with the level that meets NTSC mode specification and vertical synchronizing signal and pixel cycle synchronisation signal plus, and to signal output terminal 2 output signals of camera part 1.
In the present embodiment, because microcomputer 23 can be write to each other with the outside microcomputer 7 of the outside that is located at camera part 1 by serial communication interface 22, so utilize outside control, the output signal of the specification of the exportable signal processing circuit that is suitable for connecting.And, meet the NTSC mode by the unlatching of regulating agc circuit 18 and aperture 24 and the output signal level that makes camera part 1 that adds of ending the pixel periodic signal, just can partly be serially connected in camera on the televimonitor of NTSC mode, make it also can be used as B and use.Present embodiment can obtain the effect identical in fact with first embodiment.And, also can use low-cost separated in synchronization LSI by the level that makes synchronizing signal is consistent with standard television signal.
Below, with the 9th figure the fourth embodiment of the present invention is described.Fig. 9 is illustrated in the figure of an embodiment that colour among first and second embodiment and luminance signal produce the formation of part 6.In the present embodiment, the member identical with first, second and third embodiment is attached with identical sequence number, no longer explanation.
Present embodiment comprises A/ID change-over circuit 50, camera signal processing circuit 51, Y/C separates and demodulation process circuit 57, commutation circuit 58, signal discrimination circuit 56, the synchronizing separator circuit of forming by horizontal synchronization split circuit 61 and vertical synchronization split circuit 62 and pixel synchronizing separator circuit 63 55, the clock generation circuit of forming by synchronous signal generating circuit 64 and phase detector 65 and filter 66 and VCO (voltage-controlled oscillator) 67 54, serial communication interface 71, microcomputer 7, latch 70 and variable delay circuit 60.And, signal input terminal 4 and A/D change-over circuit 50, horizontal synchronization split circuit 61, the input of vertical synchronization split circuit 62 and pixel synchronizing separator circuit 63 connects, one in two inputs of the output of horizontal synchronization split circuit 61 and phase detector 65 is connected, the output of vertical synchronization split circuit 62 is connected with the vertical reset input of synchronous signal generating circuit 64, the horizontal synchronization pulse output of synchronous signal generating circuit 64 is connected with the input that phase detector 65 is left, the output of phase detector 65 is connected with the input of filter 66, the output of filter 66 is connected with the input of VCO67, the output of VCO67 and circuit for generating synchronous signals 64, one of two inputs of signal discrimination circuit 56, variable delay circuit 60, microcomputer 7, camera signal processing circuit 51 and Y/C separate and the clock input of demodulation process circuit 57 connects, the output of pixel synchronizing separator circuit 63 is connected with the remaining input of signal discrimination circuit 56 with the data input of latch 70, and the output of signal discrimination circuit 56 is connected with microcomputer 7 with the control input of commutation circuit 58.Also have, the output of latch 70 is connected with the input of microcomputer 7, the output of variable delay circuit 60 is connected with the clock input of latch 70 and A/D change-over circuit 50, the output of A/D change-over circuit 50 is with camera signal processing circuit 51 and Y/C separates and the input of demodulator circuit 57 is connected, camera signal processing circuit 51 separates with Y/C and the output of demodulation process circuit 57 is connected with commutation circuit 58, to select with commutation circuit 58, microcomputer 7 and signal processing circuit 51, Y/C separates and demodulation process circuit 57, synchronous signal generating circuit 64 and variable delay circuit 60 connect, to control, simultaneously, by being connected, can carry out data communication with the outside with serial communication interface 71.
Present embodiment, in order to isolate level and vertical synchronizing signal by input signal, produce the master clock that produces part 6 with the level of this signal Synchronization and vertical clock and colour and luminance signal, the phase place of the horizontal-drive signal that usefulness phase detector 65 relatively separates and the horizontal cycle pulse of synchronous signal generating circuit 64.Phase detector 65 produces the clock that is sent to synchronous signal generating circuit 64, and, carry out the synchronous of vertical direction with the vertical synchronizing signal of separating.Filter 66 changes the frequency characteristic of loop along information flow.The master clock that the clock that produces among the VCO67 can be used as colour and luminance signal generation part 6 uses.And relatively the pixel synchronizing signal of Fen Liing and the phase place of this master clock are controlled conversion timing the best that variable delay circuits 60 make A/D change-over circuit 50 with microcomputer 7.Meanwhile, signal discrimination circuit 56 is judged the kind of input signals, and commutation circuit 58 switches that camera signal processing circuits 51 separate with Y/C and the output of demodulation process circuit 57.And, microcomputer 7 control camera signal processing circuits 51 separates with Y/C and the action of demodulation process circuit 57 with the raising of realization picture quality, simultaneously, reception is from the number of picture elements information of this camera, transmit the clock counter number to synchronous signal generating circuit 64, to be applicable to the camera of connection.
In the present embodiment, owing to utilize pixel synchronizing signal control A/D conversion timing, thus always analog signal conversion is become digital signal with best phase place, so can demonstrate correct color.And, owing to the frequency content judgment signal kind of signal discrimination circuit 56 from the pixel synchronizing signal, and to microcomputer input differentiation result, so when input TV signal, the timing of A/D conversion can not become improper yet.Concerning present embodiment, can obtain the effect identical in fact with first embodiment.
Claims (15)
1. a camera head is characterized in that, this device comprises Unit the 1st, Unit the 2nd and connecting portion,
Unit the 1st possesses at least:
Picture pick-up device;
Drive the timing generation circuit of this picture pick-up device;
Produce the circuit for generating synchronous signals of synchronizing signal according to the timing of this timing generation circuit;
Will be from the output signal of this picture pick-up device and the add circuit of the synchronizing signal addition that utilizes this circuit for generating synchronous signals to produce; With
Output device, by dot sequency output from and the output signal of having added this picture pick-up device of this synchronizing signal,
Unit the 2nd possesses at least:
Input unit from external input signal;
Judging circuit, the signal that differentiation is imported by this input unit are output signal or the TV signal from described Unit the 1st;
The 1st signal processing circuit is used to produce colour signal and luminance signal from the output signal of described Unit the 1st;
The 2nd signal processing circuit utilizes this TV signal to produce colour signal and luminance signal; With
Commutation circuit is switched the 1st signal processing circuit or the 2nd signal processing circuit according to the result of this judging circuit,
The coupling part removably connects described Unit the 1st and described Unit the 2nd, to signal and the TV signal of described Unit the 2nd input from the dot sequency of described Unit the 1st.
2. camera head as claimed in claim 1 is characterized in that: between described Unit the 1st, described Unit the 2nd, dispose the commutation circuit of selecting arbitrary signal.
3. camera head as claimed in claim 1 is characterized in that: the synchronizing signal that adds in described Unit the 1st comprises level and vertical synchronizing signal or reveal competence and the vertical synchronizing signal and the synchronizing signal in picture pick-up device pixel cycle.
4. camera head as claimed in claim 1 is characterized in that: described input unit input is same input terminal from the output signal and the described TV signal of the dot sequency of described Unit the 1st.
5. camera head as claimed in claim 1 is characterized in that: described judging circuit is differentiated according to the frequency of the segment pulse of synchronizing signal that is added in the display element cycle on the dot sequency output signal or described TV signal.
6. camera head as claimed in claim 1 is characterized in that: utilize the level of described add circuit addition and vertical synchronizing signal with synchronizing signal on being attached to TV signal identical specification to be arranged.
7. camera head as claimed in claim 1 is characterized in that: be provided with in described Unit the 1st and make from the output signal level of the described picture pick-up device gain control circuit identical with the signal level of TV signal.
8. camera head as claimed in claim 7 is characterized in that: described gain control circuit detects the signal level of described picture pick-up device output, changes signal gain according to the result of this detected signal level.
9. camera head as claimed in claim 7 is characterized in that: dispose detection towards the aperture testing circuit of the incident light quantity of described picture pick-up device with drive the aperture drive circuit of aperture according to this detected incident light quantity.
10. camera head as claimed in claim 1, it is characterized in that: in described Unit the 2nd, be provided with timing control circuit, when utilization is added in the synchronizing signal in the pixel cycle on the input signal or pulse signal this input signal is converted to the digital signal time control and formulates.
11. a signal processing apparatus, by
According to the output signal of the dot sequency of the cell mesh that comprises picture pick-up device produce colour signal and luminance signal the 1st signal processing circuit and
The 2nd signal processing circuit that produces colour signal and luminance signal according to TV signal constitutes, and it is characterized in that, comprising:
Input unit from external input signal;
Judging circuit, the signal that differentiation is imported by this input unit are output signal or the TV signal from the dot sequency of the cell mesh that comprises described picture pick-up device; With
Commutation circuit is handled by the 1st signal processing circuit or the 2nd signal processing circuit according to result's switching of this judging circuit,
Described input unit input is from the dot sequency signal and the TV signal of the cell mesh that comprises described picture pick-up device.
12. camera head as claimed in claim 11 is characterized in that: be provided with from from the commutation circuit of choosing arbitrary signal both of the output signal of the cell mesh that comprises described picture pick-up device and described TV signal.
13. camera head as claimed in claim 11 is characterized in that: described input unit input is same input terminal from the output signal and the described TV signal of the dot sequency of the unit that comprises described picture pick-up device.
14. camera head as claimed in claim 11 is characterized in that: described judging circuit basis is added in from the frequency of the segment pulse of the synchronizing signal in the display element cycle on the dot sequency output signal of the cell mesh that comprises described picture pick-up device or described TV signal to be differentiated.
15. camera head as claimed in claim 11, it is characterized in that: be provided with timing control circuit, according to being added in from the synchronizing signal in the pixel cycle on the output signal of the dot sequency of the cell mesh that comprises described picture pick-up device or the pulse signal of described TV signal the timing when control converts input signal to digital signal by described input unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197767A CN1079621C (en) | 1995-03-10 | 1995-03-10 | Image pickup device and its signal processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197767A CN1079621C (en) | 1995-03-10 | 1995-03-10 | Image pickup device and its signal processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1178054A CN1178054A (en) | 1998-04-01 |
| CN1079621C true CN1079621C (en) | 2002-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95197767A Expired - Fee Related CN1079621C (en) | 1995-03-10 | 1995-03-10 | Image pickup device and its signal processor |
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| Country | Link |
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| CN (1) | CN1079621C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5398826B2 (en) * | 2009-05-15 | 2014-01-29 | 三菱電機株式会社 | Motor drive control device |
| US8488055B2 (en) * | 2010-09-30 | 2013-07-16 | Apple Inc. | Flash synchronization using image sensor interface timing signal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325067A (en) * | 1976-08-18 | 1978-03-08 | Matsushita Electric Ind Co Ltd | Table ware washing machine |
| JPH04144383A (en) * | 1990-10-04 | 1992-05-18 | Mitsubishi Electric Corp | Video projector |
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1995
- 1995-03-10 CN CN95197767A patent/CN1079621C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5325067A (en) * | 1976-08-18 | 1978-03-08 | Matsushita Electric Ind Co Ltd | Table ware washing machine |
| JPH04144383A (en) * | 1990-10-04 | 1992-05-18 | Mitsubishi Electric Corp | Video projector |
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| Publication number | Publication date |
|---|---|
| CN1178054A (en) | 1998-04-01 |
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