CN201846416U - Image sensor - Google Patents
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- CN201846416U CN201846416U CN2010205093067U CN201020509306U CN201846416U CN 201846416 U CN201846416 U CN 201846416U CN 2010205093067 U CN2010205093067 U CN 2010205093067U CN 201020509306 U CN201020509306 U CN 201020509306U CN 201846416 U CN201846416 U CN 201846416U
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Abstract
The utility model provides an image sensor which comprises a photosensitive array, an image processing unit, a DVP interface, a peripheral memory interface, a serial peripheral interface and an interface controller, wherein the image processing unit is coupled with the photosensitive array; and the interface controller is coupled with the DVP interface, the peripheral memory interface and the serial peripheral interface. The image sensor is suitable for selecting one interface to output signals from the image processing unit, has such accelerated data processing functions as accelerated GIF (Graphics Interchange Format) decompression, CRC (Cyclic Redundancy Check) calculation, IDCT (Inverse Discrete Cosine Transform) calculation, color space transformation and the like; and besides, the image sensor is provided with a USB (Universal Serial Bus) interface, so as to expand the systemic function. The image sensor has the advantage that the compatibility and the application range are improved.
Description
Technical field
The utility model relates to image processing field, particularly a kind of imageing sensor.
Background technology
At present, along with the continuous development of multimedia technology, increasing electronic equipment is equipped with the first-class video acquisition device of shooting, as mobile phone, computer, portable electronic device etc. camera is housed mostly, is used to take pictures or visual communication.Core component in the camera is an imageing sensor, adopt CCD (Charge Coupled Device) photosensitive array or CMOS (Complementary Metal OxideSemiconductor) photosensitive array that the light signal of image is converted into the signal of telecommunication, afterwards again through processing or compression after, it is transferred to master controller shows or store.
The patent No. is the computer system that discloses a kind of imageing sensor in the Chinese patent of ZL200610089716.9 and used this imageing sensor, the view data that sensor array is produced sends out by an interface after overcompression again, and described interface is the USB2.0 interface.In actual applications, the interface of processor (being equivalent to described master controller) by described imageing sensor obtains the image after the compression, and shows.
But, there is compatibility issue in imageing sensor in the above-mentioned Chinese patent, since the interface type of the master controller chip supports such as processor in the reality be diversified, have nothing in common with each other, if the interface type of master controller chip and imageing sensor does not match, then can cause the master controller chip can't obtain the image that imageing sensor produces.If produce dissimilar imageing sensors to support dissimilar interfaces respectively, can cause the too high problem of cost again.
The utility model content
The technical problem that the utility model solves provides a kind of imageing sensor, improves the compatibility of imageing sensor.
For solving the problems of the technologies described above, the utility model provides a kind of imageing sensor, comprise: sensitization and be coupled to the graphics processing unit of described photosensitive array, also comprise interface controller and at least two kinds of interfaces, described interface controller and described at least two kinds of interfaces coupling, be suitable for selecting the signal of a kind of interface output from described graphics processing unit, described at least two kinds of interfaces comprise DVP interface and peripheral storage interface (EMI, External Memory Interface).
Optionally, described at least two kinds of interfaces also comprise Serial Peripheral Interface (SPI, SerialPeripheral Interface).
Optionally, described imageing sensor is integrated on the semiconductor chip, the shared same group of input and output pin of described DVP interface, peripheral storage interface and Serial Peripheral Interface.
Optionally, described imageing sensor is as main equipment, described interface controller select the output of DVP interface from the signal of described graphics processing unit to ancillary equipment.
Optionally, described imageing sensor is as main equipment, described interface controller select described Serial Peripheral Interface output from the signal of described graphics processing unit to ancillary equipment.
Optionally, described imageing sensor is as slave unit, described interface controller select described Serial Peripheral Interface to the periphery equipment signal from described graphics processing unit is provided.
Optionally, described peripheral interface also comprises fifo buffer, is suitable for the buffering to dateout.
Optionally, described imageing sensor is as slave unit, described interface controller select described peripheral storage interface to the periphery equipment signal from described graphics processing unit is provided.
Optionally, described peripheral storage interface also comprises fifo buffer, is suitable for the buffering to dateout.
Optionally, described fifo buffer is to use on-chip memory to realize.
Optionally, described imageing sensor also comprises the I2C interface, described interface controller also is configured to be suitable for receiving by described I2C interface the control signal of ancillary equipment, to realize the switching between described DVP interface, peripheral storage interface and the Serial Peripheral Interface.
Optionally, described interface controller comprises MUX, and its input connects described DVP interface, peripheral storage interface and Serial Peripheral Interface, and its output connects the input and output pin, and its control end connects the output of described I2C interface.
Optionally, described imageing sensor also comprises: mode controller, association's processing unit, USB (UniversalSerial Bus, USB) interface and interface convertor, described mode controller is coupled to described association processing unit, USB interface, interface convertor and photosensitive array, be suitable for controlling described imageing sensor and be operated in sensing pattern or association's tupe or USB interface translative mode, wherein
Under the sensing pattern, described photosensitive array is opened, and produces the described signal of telecommunication;
Under association's tupe, described photosensitive array is closed, and described association processing unit obtains the input data by described peripheral storage interface, carries out after the calculation process result being exported by described peripheral storage interface;
Under the USB interface translative mode, described photosensitive array is closed, described USB interface receives external input signal, go here and there and change the back via described interface convertor by the output of described peripheral storage interface, or described peripheral storage interface receives external input signal, carries out and go here and there the conversion back exporting by described USB interface via described interface convertor.
Optionally, described association processing unit comprises: GIF (Graphics Interchange Format) decompression module, be suitable for obtaining the input data by described peripheral storage interface, carrying out buffer memory and GIF decompresses, produce interrupt signal after decompression is finished, read data after the decompression so that ancillary equipment receives after the described interrupt signal by described peripheral storage interface.
Optionally, described association processing unit comprises: cyclic redundancy check (CRC) (CRC, Cyclic RedundancyCheck) module, be suitable for obtaining the input data by described peripheral storage interface, carry out the cyclic redundancy check (CRC) computing, after computing is finished operation result is sent to ancillary equipment by described peripheral storage interface.
Optionally, described association processing unit comprises: inverse discrete cosine transform (IDCT, Inverse DiscreteCosine Transform) module, be suitable for obtaining the input data by described peripheral storage interface, carry out buffer memory and inverse discrete cosine transform computing, after finishing, computing produces interrupt signal, so that ancillary equipment reads the data that produce after the computing by described peripheral storage interface after receiving described interrupt signal.
Optionally, described association processing unit comprises: color space conversion module, be suitable for obtaining the input data, carry out the color space translation operation, by described peripheral storage interface operation result is sent to ancillary equipment after computing is finished by described peripheral storage interface.
Optionally, described imageing sensor also comprises the I2C interface, and described mode controller also is configured to be suitable for receiving by described I2C interface the control signal of ancillary equipment, to realize the conversion between sensing pattern, association's tupe and the USB interface translative mode.
Optionally, described mode controller comprises configuration register, is suitable for storing the configuration data that described association processing unit, USB interface, interface convertor and photosensitive array are opened or closed.
For solving the problems of the technologies described above, the utility model provides a kind of electronic equipment, comprises master controller and above-mentioned each imageing sensor.
Compared with prior art, the utility model mainly has the following advantages:
Multiple interfaces such as DVP, EMI, SPI that the imageing sensor of the technical program is integrated can be applicable to multiple master controller, have improved compatibility.
Further, the shared same group of input/output port of the DVP in the imageing sensor of the technical program, EMI and SPI interface reduced the number of pins after the encapsulation, reduced cost.
In addition, also comprise association's processing unit in the imageing sensor of the technical program, support multiple association processing capacities such as GIF decoding, CRC check, IDCT computing, color space conversion, can effectively remedy the problem of master controller disposal ability deficiency, improve the performance of whole electric equipment.
In addition, also provide the interface conversion between USB interface and the EMI interface in the imageing sensor of the technical program, realize compatibility USB interface, can the expanding system function, improve the performance of whole electric equipment.
Description of drawings
Fig. 1 is the structural representation of the imageing sensor of the utility model embodiment;
Fig. 2 is the interface controller in the imageing sensor of the utility model embodiment and the syndeton schematic diagram of each interface;
Fig. 3 is a kind of syndeton schematic diagram of the electronic equipment of the utility model embodiment;
Fig. 4 is the electronic equipment of the utility model embodiment and a kind of syndeton schematic diagram of memory;
Fig. 5 is the electronic equipment of the utility model embodiment and a kind of syndeton schematic diagram of display screen;
Fig. 6 is the electronic equipment of the utility model embodiment and a kind of syndeton schematic diagram of computer.
Embodiment
Because the imageing sensor of prior art adopts the DVP interface mostly, it is the CCIR656 standard interface, the interface type that the master controller chip is supported then has nothing in common with each other, some supports camera (Camera) interface, can support the input of DVP interface data, do not comprise utilizing camera interface but also have in the considerable master controller chip, can't receive the data that the DVP interface sends, therefore make existing imageing sensor have compatibility issue.
Discover through the inventor, existing master controller chip all comprises at least one in EMI interface or the SPI interface usually, wherein the EMI interface is used for the visit of master controller to chip external memory, the SPI interface is used for the visit of master controller to the outer ancillary equipment of sheet, and the message transmission rate of these two kinds of interfaces can satisfy the bandwidth demand of image data transmission, therefore the imageing sensor of the technical program is supported multiple interfaces, comprise the DVP interface, EMI interface and SPI interface, and realize the switching of each interface by interface controller, can compatible various master controller chips, improved compatibility.
Further, the imageing sensor of the technical program is integrated on the same chip, and the shared same group of input/output port of DVP wherein, EMI and SPI interface reduced the number of pins after the encapsulation, reduced cost.
In addition, also comprise association's processing unit in the imageing sensor of the technical program, support multiple association processing capacities such as GIF decompression, CRC check, IDCT computing, color space conversion, can effectively remedy the problem of master controller disposal ability deficiency, improve the performance of whole electric equipment.
In addition, also provide the interface conversion between USB interface and the EMI interface in the imageing sensor of the technical program, realize compatibility, improve the performance of whole electric equipment USB interface.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, specific implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the structural representation of imageing sensor of the present utility model, as shown in Figure 1, comprising: photosensitive array 101, graphics processing unit 102, DVP interface 103, EMI interface 104, SPI interface 106, interface controller 105, mode controller 107, GIF decompression module 108, CRC module 109, IDCT module 110, color space conversion module 111, usb 1 12, interface convertor 113, I2C interface 114 and memory 115.
Wherein, described photosensitive array 101 is used for extraneous light is converted to the signal of telecommunication, and it can be CMOS structure or CCD structure, is preferably lower-cost CMOS structure in the present embodiment.
Described graphics processing unit 102 is coupled to described photosensitive array 101, be used for that the signal of telecommunication that described photosensitive array 101 produces is handled the back and produce picture output signal, described processing procedure can be compression process, as the jpeg image with the predetermined format size of original signal of telecommunication boil down to.
Described interface control unit 105 is used for switching between DVP interface 103, EMI interface 104 and SPI interface 106, select a kind of output in the above-mentioned various interface from the picture output signal that described graphics processing unit 102 produces, described picture output signal is sent to master controller processs and displays.Imageing sensor in the present embodiment is integrated on the semiconductor chip, above-mentioned DVP interface 103, EMI interface 104 and SPI interface 106 shared same group of input and output pins, make that the number of pins of the semiconductor chip after encapsulating is less, reduce cost, reduced the semiconductor chip size after the encapsulation.In addition, the imageing sensor in the present embodiment adopts CSP (Chip Scale Package) encapsulation, has further reduced the semiconductor chip size after the encapsulation, and the feasible volume of the electronic equipment of this imageing sensor that comprises can further reduce.
In the present embodiment, under each interface mode, shared number of pins is not quite similar, and the number of pins that DVP interface 103 takies has 11, comprises 8 data pins, 1 clock pin, 1 synchronous pin of row, 1 field synchronization pin respectively; The number of pins that EMI interface 104 takies has 13, comprises the pin of 1 interrupt signal pin, 1 effective pin of read signal, 1 chip selection signal pin, 1 read-write control signal pin, 8 data and address multiplex, 1 data/address pins (be used to distinguish current input be data or address) respectively; The number of pins that SPI interface 106 takies mainly contains 4, comprises 1 input pin, 1 output pin, 1 clock pin, 1 chip selection signal pin respectively, in addition, can also comprise 1 effective pin of data, and 1 is suspended pin and 1 and overflows pin.
Need to prove, above-mentioned DVP interface 103, EMI interface 104 and SPI interface 106 comprise the controller of the corresponding interface agreement, it refers to the interface of various interconnection agreements in logic, and its connection physically realizes by same group of input and output pin.
Described I2C interface 114 is coupled to described interface controller 105, is used to receive the control signal of ancillary equipment, as the control signal of master controller, described mode controller 107 and interface controller 105 is configured.Described memory 115 is an on-chip memory, is used to provide functions such as metadata cache, and is concrete, in the present embodiment, described memory 115 can be configured to fifo buffer (FIFO, First In FirstOut), and the dateout of described EMI interface 104 and SPI interface 106 is cushioned.
In actual use, described interface controller 105 also is configured to be suitable for receiving by I2C interface 114 control signal of master controller input, between described DVP interface 103, EMI interface 104 and SPI interface 106, switch, transfer to described master controller with the picture output signal that graphics processing unit 102 is produced.Therefore, as long as master controller comprises in above-mentioned three kinds of interfaces any one, the imageing sensor of present embodiment can be suitable for.
Described mode controller 107 is coupled to described GIF decompression module 108, CRC module 109, IDCT module 110, color space conversion module 111, usb 1 12, interface convertor 113 and photosensitive array 101, being suitable for controlling described imageing sensor is operated under the different mode, comprise: the sensing pattern, association's tupe and USB interface translative mode, its control signal is from I2C interface 114, in one embodiment, described imageing sensor receives the control signal of autonomous controller by I2C interface 114, described mode controller 107 is configured to be suitable for receiving by described I2C interface 114 control signal of peripheral master controller, and described imageing sensor is operated under the different mode of operations.
Wherein, under the sensing pattern, described photosensitive array 101 is opened, and produces the signal of telecommunication, and handles through described graphics processing unit 102 after be sent to ancillary equipment by one in DVP interface 103, EMI interface 104 or the SPI interface 106, as is sent to master controller.Under the sensing pattern, for master controller, described imageing sensor is equivalent to camera, as the source of picture signal.
Under association's tupe, described photosensitive array 101 is closed, and the association's processing unit in the described imageing sensor obtains the input data by EMI interface 104, carries out after the calculation process result being exported by described EMI interface 104 again.In the present embodiment, described association processing unit comprises: GIF decompression module 108, be suitable for from master controller, obtaining the input data by described EMI interface 104, carrying out buffer memory and GIF decompresses, after finishing, decompression produces interrupt signal, after described master controller receives described interrupt signal, read result after the decompression by described EMI interface 104; CRC module 109 is suitable for obtaining the input data by described EMI interface 104 from master controller, carries out the CRC computing, after computing is finished result is sent to master controller by described EMI interface 104; IDCT module 110, be suitable for from master controller, obtaining the input data, carry out buffer memory and IDCT computing, produce interrupt signal after computing is finished by described EMI interface 104, after described master controller receives described interrupt signal, read the result that produces after the computing by described EMI interface 104; Color space conversion module 111, be suitable for from master controller, obtaining the input data by described EMI interface 104, carry out the color space translation operation, after computing is finished, result is sent to master controller by described EMI interface 104, the conversion of described color space refers to the mutual conversion between the data of the data of yuv format and rgb format, and the color space conversion module 111 in the present embodiment is used for the conversion of yuv format to rgb format.
Need to prove, under association's tupe, need control by 114 pairs of mode controllers 107 of I2C interface, so that each module in association's processing unit is carried out corresponding configuration, in addition, also need docking port controller 105 to be configured, so that the current communication interface of described image processor is an EMI interface 104.Why adopt EMI interface 104, be because DVP interface 103 is unidirectional transmission course, can not satisfy the data requirement of reading in and exporting of association's processing unit, and the transmission rate of SPI interface 106 is low excessively, can not satisfy the requirement of image data transmission a large amount of in the calculating processes such as GIF decompression, IDCT.Under association's tupe, for master controller, described imageing sensor is equivalent to a coprocessor, master controller can be transferred to imageing sensor with above-mentioned various complex calculations processes and carry out, effectively remedy the problem of master controller disposal ability deficiency, improved the performance of whole electric equipment.
Under the USB interface translative mode, described photosensitive array 101 is closed, go here and there by interface convertor 113 between described usb 1 12 and the EMI interface 104 and change and and the string conversion, finish the mutual of data.In one embodiment, master controller is configured by 114 pairs of described mode controllers 107 of I2C interface and interface controller 105, making master controller pass through EMI interface 104 links to each other with imageing sensor, imageing sensor links to each other by main frames such as usb 1 12 and computers, finishes the data interaction between main frame such as computer and the master controller.Why selecting EMI interface 104, also is that DVP interface 103 is one-way transmission can't satisfy the transfer of data demand because the transmission rate of SPI interface 106 is too low.Under this pattern, described imageing sensor is equivalent to " adapter ", when master controller does not possess USB interface, has realized the interconnection between master controller and the USB interface of computer.
Described mode controller 107 comprises a plurality of configuration registers, comprise a plurality of control bits (bit) in each configuration register, be suitable for respectively storing the configuration data that GIF decompression module 108, CRC module 109, IDCT module 110, color space conversion module 111, usb 1 12, interface convertor 113 and photosensitive array 101 are opened or closed, to control the on off state of each module.As the master controller of periphery by as described in I2C interface 114 revise as described in configuration register in the mode controller 107, the control bit that mode of operation wherein is correlated with is configured, make it enter association's tupe, the control bit of configuration GIF decompression module 108 wherein, after being opened, described GIF decompression module 108 enters operating state, close other modules simultaneously, then this moment, described imageing sensor just was equivalent to a coprocessor that carries out the GIF decompression operation for described master controller.
Fig. 2 shows the concrete structure schematic diagram of the interface controller in the present embodiment, as shown in Figure 2, described interface controller 105 comprises MUX (MUX), its input connects described DVP interface 103 respectively, EMI interface 104 and SPI interface 106, its output connects one group of input and output pin of semiconductor chip, its control end Ctrl connects described I2C interface (not shown), outside master controller is controlled described MUX by described I2C interface, make described image controller between each interface, switch, same group of input and output pin of each interface duplex.In other embodiments, described interface controller can also comprise a plurality of MUX, and wherein an input and output pin of each MUX control is multiplexing.
Fig. 3 shows a kind of syndeton schematic diagram of the electronic equipment that comprises above-mentioned imageing sensor, comprise: master controller 300 and imageing sensor 200, described master controller 300 is configured the interface controller in the described imageing sensor 200 by the I2C interface, make described imageing sensor 200 the image dateout is sent to Camera interface 301, process and display for master controller 300 by DVP interface 201.Under this kind connection mode, described imageing sensor 200 is a main equipment, described picture output signal is exported to the Camera interface 301 of master controller 300 by DVP interface 201 active push.
Fig. 4 shows the another kind of johning knot composition of the electronic equipment that comprises above-mentioned imageing sensor, comprise: master controller 300, imageing sensor 200 and memory 410, described master controller 300 is configured the interface controller in the described imageing sensor 200 by the I2C interface, make described master controller 300 by EMI interface 302 references to storage 410, and carrying out data interaction by EMI interface 202 and imageing sensor 200, described memory 410 is a chip external memory.Under this kind connection mode, described imageing sensor 200 also is the equal of a chip external memory that is equivalent to described memory 410, it is as the slave unit of master controller 300, provide data to master controller 300, the picture output signal that described master controller 300 produces by EMI interface 302 and the described imageing sensor 200 of EMI interface 202 visits.When described imageing sensor 200 is connected with master controller 300 by described EMI interface 202 as slave unit, imageing sensor 200 also uses fifo buffer (FIFO, First In First Out) (not shown) cushions dateout, realize the adaptive of interface rate, described fifo buffer can use the on-chip memory in the imageing sensor 200 to realize.
In addition, under this kind connected mode, described imageing sensor 200 can also be operated under association's tupe, in one embodiment, master controller 300 can be analyzed the header of GIF picture file by the mode of software, extract data block wherein, by EMI interface 302 and EMI interface 202 the GIF decompression module (not shown) that described data block is sent in the imageing sensor 200 is carried out buffer memory and GIF decompression, after the decompression of finishing described data block, produce interrupt signal INT and be sent to the interrupt control unit 304 of described master controller 300, data described master controller 300 obtains decompression by described EMI interface 302 and EMI interface 202 from buffer area in corresponding interrupt service routine after, begin the operation of next data block afterwards again, until the decompression process of finishing whole GIF image file.
Similarly, difference according to embodiment, described master controller 300 also can be sent to CRC module (not shown) in the imageing sensor 200 with data by EMI interface 302 and EMI interface 202, calculate the check code that meets CRC standard (as the CRC16 standard) by described CRC module, master controller 300 reads and calculates the check code that obtains afterwards, under this pattern, because the data volume of input data and dateout is all smaller, does not need to carry out jumbo buffer memory and does not also need to use interrupt signal.
Difference according to embodiment, described master controller 300 also can be sent to IDCT module in the imageing sensor 200 with data by EMI interface 302 and EMI interface 202, through overmulling deposit with the inverse discrete cosine transform computing after produce interrupt signal, make master controller 300 from buffer area, read result of calculation by EMI interface 302 and EMI interface 202.
Difference according to embodiment, described master controller 300 also can be sent to color space conversion module in the imageing sensor 200 with data by EMI interface 302 and EMI interface 202, carry out the conversion between the data of the data of yuv format and rgb format, master controller 300 reads transformation result by EMI interface 302 and EMI interface 202 more afterwards.Data volume under this pattern is also smaller, does not therefore need to use interrupt signal equally.
Fig. 5 shows another johning knot composition of the electronic equipment that comprises above-mentioned imageing sensor, comprise: master controller 300, imageing sensor 200 and display screen 420, described master controller 300 is sent to video data by SPI interface 303 supports the display screen 420 of SPI interface to show, described master controller 300 is configured the interface controller in the described imageing sensor 200 by the I2C interface, makes described master controller 300 carry out data interaction by SPI interface 203 and SPI interface 303 with imageing sensor 200.Under this kind connection mode, described imageing sensor 200 can be used as main equipment, picture output signal is sent to the SPI interface 303 of master controller 300 by SPI interface 203; Described imageing sensor 200 also can be used as slave unit, provides data to described master controller 300, and described master controller 300 is initiatively visited described imageing sensor 200 by described SPI interface 303 and SPI interface 203, obtains described picture output signal.When described imageing sensor 200 is connected with master controller 300 by described SPI interface 203 as slave unit, described imageing sensor 200 also uses the fifo buffer (not shown) that dateout is cushioned, realize the adaptive of interface rate, described fifo buffer can use the on-chip memory in the imageing sensor 200 to realize.
Fig. 6 shows the electronic equipment that comprises above-mentioned imageing sensor and the johning knot composition of computer, and under this kind connected mode, the electronic equipment that comprises master control 300 and imageing sensor 200 is equivalent to be connected the memory device on the computer 400, as flash memory etc.Wherein, master controller 300 comprises EMI interface 302 and interrupt control unit 304, and the interface controller in the described imageing sensor 200 is configured by the I2C interface, make described master controller 300 carry out data interaction by EMI interface 202 and imageing sensor 200, described graphical sensory device is mutual by link to each other with the USB interface 404 of computer 400 line data of going forward side by side of USB interface 204.In reading process, imageing sensor 200 reads data in the master controller 300 by EMI interface 202, its Data Source can be the on-chip memory in the master controller 300, the also data that can obtain outside sheet by other interfaces for master controller 300, be sent to USB interface 204 after described data process and the string conversion and carry out buffer memory, after reaching a preset threshold value, buffer area produces interrupt signal INT, control described EMI interface 302 and suspend transfer of data, and the data in the buffer area are sent to USB interface 404 in the computer 400, after the data in the buffer area in the described USB interface 204 all are sent to computer 400, then EMI interface 202 produces interrupt signal INT, be sent to the interrupt control unit 304 in the master controller 300, make that the transfer of data between the EMI interface is restarted.Similarly, in ablation process, the data that imageing sensor 200 sends by USB interface 204 receiving computers 400 row cache of going forward side by side, and the data in the buffer area are sent to master controller 300 through string and conversion back by EMI interface 202 carry out ablation process.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all still belongs in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (20)
1. imageing sensor, comprise: photosensitive array and the graphics processing unit that is coupled to described photosensitive array, it is characterized in that, also comprise interface controller and at least two kinds of interfaces, described interface controller and described at least two kinds of interfaces coupling, be suitable for selecting the signal of a kind of interface output from described graphics processing unit, described at least two kinds of interfaces comprise DVP interface and peripheral storage interface.
2. imageing sensor according to claim 1 is characterized in that, described at least two kinds of interfaces also comprise Serial Peripheral Interface.
3. imageing sensor according to claim 2 is characterized in that described imageing sensor is integrated on the semiconductor chip, the shared same group of input and output pin of described DVP interface, peripheral storage interface and Serial Peripheral Interface.
4. imageing sensor according to claim 2 is characterized in that, described imageing sensor is as main equipment, described interface controller select the output of DVP interface from the signal of described graphics processing unit to ancillary equipment.
5. imageing sensor according to claim 2 is characterized in that, described imageing sensor is as main equipment, described interface controller select described Serial Peripheral Interface output from the signal of described graphics processing unit to ancillary equipment.
6. imageing sensor according to claim 2 is characterized in that, described imageing sensor is as slave unit, described interface controller select described Serial Peripheral Interface to the periphery equipment signal from described graphics processing unit is provided.
7. imageing sensor according to claim 6 is characterized in that described peripheral interface also comprises fifo buffer, is suitable for the buffering to dateout.
8. imageing sensor according to claim 2 is characterized in that, described imageing sensor is as slave unit, described interface controller select described peripheral storage interface to the periphery equipment signal from described graphics processing unit is provided.
9. imageing sensor according to claim 8 is characterized in that, described peripheral storage interface also comprises fifo buffer, is suitable for the buffering to dateout.
10. according to each described imageing sensor in claim 7 or 9, it is characterized in that described fifo buffer is to use on-chip memory to realize.
11. imageing sensor according to claim 2, it is characterized in that, also comprise the I2C interface, described interface controller also is configured to be suitable for receiving by described I2C interface the control signal of ancillary equipment, to realize the switching between described DVP interface, peripheral storage interface and the Serial Peripheral Interface.
12. imageing sensor according to claim 11, it is characterized in that, described interface controller comprises MUX, its input connects described DVP interface, peripheral storage interface and Serial Peripheral Interface, its output connects the input and output pin, and its control end connects the output of described I2C interface.
13. imageing sensor according to claim 1, it is characterized in that, also comprise: mode controller, association processing unit, USB interface and interface convertor, described mode controller is coupled to described association processing unit, USB interface, interface convertor and photosensitive array, be suitable for controlling described imageing sensor and be operated in sensing pattern or association's tupe or USB interface translative mode, wherein
Under the sensing pattern, described photosensitive array is opened, and produces the described signal of telecommunication;
Under association's tupe, described photosensitive array is closed, and described association processing unit obtains the input data by described peripheral storage interface, carries out after the calculation process result being exported by described peripheral storage interface;
Under the USB interface translative mode, described photosensitive array is closed, described USB interface receives external input signal, go here and there and change the back via described interface convertor by the output of described peripheral storage interface, or described peripheral storage interface receives external input signal, carries out and go here and there the conversion back exporting by described USB interface via described interface convertor.
14. imageing sensor according to claim 13, it is characterized in that, described association processing unit comprises: the GIF decompression module, be suitable for obtaining the input data by described peripheral storage interface, carrying out buffer memory and GIF decompresses, produce interrupt signal after decompression is finished, read data after the decompression so that ancillary equipment receives after the described interrupt signal by described peripheral storage interface.
15. imageing sensor according to claim 13, it is characterized in that, described association processing unit comprises: the cyclic redundancy check (CRC) module, be suitable for obtaining the input data by described peripheral storage interface, carry out the cyclic redundancy check (CRC) computing, after computing is finished operation result is sent to ancillary equipment by described peripheral storage interface.
16. imageing sensor according to claim 13, it is characterized in that, described association processing unit comprises: the inverse discrete cosine transform module, be suitable for obtaining the input data by described peripheral storage interface, carry out buffer memory and inverse discrete cosine transform computing, after finishing, computing produces interrupt signal, so that ancillary equipment reads the data that produce after the computing by described peripheral storage interface after receiving described interrupt signal.
17. imageing sensor according to claim 13, it is characterized in that, described association processing unit comprises: color space conversion module, be suitable for obtaining the input data by described peripheral storage interface, carry out the color space translation operation, by described peripheral storage interface operation result is sent to ancillary equipment after computing is finished.
18. imageing sensor according to claim 13, it is characterized in that, also comprise the I2C interface, described mode controller also is configured to be suitable for receiving by described I2C interface the control signal of ancillary equipment, to realize the conversion between sensing pattern, association's tupe and the USB interface translative mode.
19. imageing sensor according to claim 13 is characterized in that, described mode controller comprises configuration register, is suitable for storing the configuration data that described association processing unit, USB interface, interface convertor and photosensitive array are opened or closed.
20. an electronic equipment is characterized in that, comprises the described imageing sensor of each claim in master controller and the claim 1 to 19.
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| CN2010205093067U Expired - Lifetime CN201846416U (en) | 2010-08-20 | 2010-08-20 | Image sensor |
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| CN (1) | CN201846416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106638A (en) * | 2011-11-14 | 2013-05-15 | 辉达公司 | Graphic processing device for real-time image processing |
| CN113190291A (en) * | 2021-05-25 | 2021-07-30 | 电子科技大学 | Configurable protocol conversion system and method based on network-on-chip data acquisition |
-
2010
- 2010-08-20 CN CN2010205093067U patent/CN201846416U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106638A (en) * | 2011-11-14 | 2013-05-15 | 辉达公司 | Graphic processing device for real-time image processing |
| US9508109B2 (en) | 2011-11-14 | 2016-11-29 | Nvidia Corporation | Graphics processing |
| CN113190291A (en) * | 2021-05-25 | 2021-07-30 | 电子科技大学 | Configurable protocol conversion system and method based on network-on-chip data acquisition |
| CN113190291B (en) * | 2021-05-25 | 2023-06-02 | 电子科技大学 | Configurable protocol conversion system and method based on network-on-chip data acquisition |
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