WO2020229927A1 - 検索方法、検索装置、および検索システム - Google Patents
検索方法、検索装置、および検索システム Download PDFInfo
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- WO2020229927A1 WO2020229927A1 PCT/IB2020/054055 IB2020054055W WO2020229927A1 WO 2020229927 A1 WO2020229927 A1 WO 2020229927A1 IB 2020054055 W IB2020054055 W IB 2020054055W WO 2020229927 A1 WO2020229927 A1 WO 2020229927A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/906—Clustering; Classification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/53—Querying
- G06F16/538—Presentation of query results
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/5866—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using information manually generated, e.g. tags, keywords, comments, manually generated location and time information
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/901—Indexing; Data structures therefor; Storage structures
- G06F16/9024—Graphs; Linked lists
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/31—Design entry, e.g. editors specifically adapted for circuit design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/12—Symbolic schematics
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/20—Configuration CAD, e.g. designing by assembling or positioning modules selected from libraries of predesigned modules
Definitions
- One aspect of the present invention relates to a search method, a search device, and a search system.
- it relates to a circuit diagram and a search method, a search device, and a search system for texts related to the circuit diagram.
- a graph consists of a set of vertices (nodes) and edges (edges), and is used as a means for expressing a network structure such as a connection between people in a community and a transportation network (Patent Document 1).
- Non-Patent Document 1 discloses a method of calculating the similarity between graphs.
- One aspect of the present invention is to provide a method for searching a circuit diagram. Further, one aspect of the present invention is to provide a circuit diagram search device. Another object of the present invention is to provide a circuit diagram search system. Another object of one aspect of the present invention is to provide a method for searching a sentence for explaining a circuit diagram. Further, one aspect of the present invention is to provide a text search device for explaining a circuit diagram. Another object of one aspect of the present invention is to provide a text search system for explaining a circuit diagram.
- One aspect of the present invention is a means for inputting the first circuit diagram information to the terminal, a database in which the second circuit diagram information is registered, and the input first circuit diagram information is converted into the first graph.
- the search system includes means for calculating the similarity between the first graph and the second graph based on the second circuit diagram information, and means for displaying the similarity on the terminal.
- the search system has a server connected to the terminal via a network, and the database is stored in the server.
- the first circuit diagram information is a circuit element constituting the circuit diagram.
- the first circuit diagram information is preferably text explaining the circuit diagram.
- one aspect of the present invention is a step of converting the first circuit diagram information input to the terminal into the first graph, and the degree of similarity between the first graph and the second graph registered in the database.
- This is a search method having a step of calculating the above and a step of displaying the similarity on the terminal.
- the first circuit diagram information is a circuit element constituting the circuit diagram.
- the first circuit diagram information is preferably text explaining the circuit diagram.
- One aspect of the present invention makes it possible to provide a method for searching a circuit diagram. Further, one aspect of the present invention makes it possible to provide a circuit diagram search device. Moreover, one aspect of the present invention makes it possible to provide a circuit diagram search system. Further, one aspect of the present invention makes it possible to provide a method for searching a sentence explaining a circuit diagram. Further, according to one aspect of the present invention, it becomes possible to provide a text search device for explaining a circuit diagram. In addition, one aspect of the present invention makes it possible to provide a text search system for explaining a circuit diagram.
- 1A1 to 1F2 show a circuit element or a graph corresponding to the circuit element, and are views for explaining one aspect of the present invention.
- 2A1 to 2F2 show a circuit element or a graph corresponding to the circuit element, and are views for explaining one aspect of the present invention.
- 3A1 to 3G2 show a circuit element or a graph corresponding to the circuit element, and are views for explaining one aspect of the present invention.
- 4A and 4B are diagrams showing a circuit diagram or a graph corresponding to the circuit diagram and explaining one aspect of the present invention.
- 5A and 5B are diagrams showing a circuit diagram or a graph corresponding to the circuit diagram and explaining one aspect of the present invention.
- FIG. 6A and 6B show a circuit diagram or a graph corresponding to the circuit diagram, and are diagrams illustrating one aspect of the present invention.
- 7A and 7B are schematic views illustrating an operation method of a terminal used for a circuit diagram search of one aspect of the present invention.
- FIG. 8A is a schematic diagram illustrating an operation method of the terminal used for the circuit diagram search of one aspect of the present invention.
- 8B and 8C are examples of circuit diagrams of one aspect of the present invention.
- FIG. 9 is a schematic diagram illustrating a terminal according to an aspect of the present invention.
- FIG. 10 is a schematic diagram illustrating a network used for a circuit diagram search of one aspect of the present invention.
- FIGS. 11A1 to 11E2 are diagrams illustrating a method of calculating the degree of similarity between graphs according to one aspect of the present invention.
- FIG. 12 is a flowchart illustrating one aspect of the present invention.
- FIG. 13 is a flowchart illustrating one aspect of the present invention.
- 14A and 14B are schematic views illustrating an operation method of a terminal used for a circuit diagram search of one aspect of the present invention.
- FIG. 15 is a diagram illustrating an embodiment of the present invention.
- 16A to 16D are diagrams illustrating an embodiment of the present invention.
- the graph is a data structure composed of vertices (nodes) and edges (edges), and represents the connection between the data.
- edges edges
- FIG. 1A1 shows the circuit symbol of the NMOS transistor
- FIG. 1A2 shows the corresponding graph.
- the graph of FIG. 1A2 is composed of one node N, two nodes Nsd, and one node Ng.
- Node Ng represents a gate and node Nsd represents a source or drain.
- Node Ng and Nsd are each connected to node N.
- node N is an element node
- nodes Ng and Nsd are terminal nodes.
- a plurality of terminal nodes are connected to one element node.
- FIG. 1B1 shows the circuit symbol of the MOSFET transistor
- FIG. 1B2 shows the corresponding graph.
- the graph of FIG. 1B2 is composed of one node P, two node Psd, and one node Pg.
- the node Pg represents the gate and the node Psd represents the source or drain.
- the node P is an element node, and the nodes Pg and Psd are terminal nodes connected to the node P, respectively.
- FIG. 1C1 shows the circuit symbol of the NMOS transistor
- FIG. 1C2 shows the corresponding graph.
- the NMOS transistor shown in FIG. 1C1 is used when the source / drain is distinguished (the one with the arrow is the source).
- the graph of FIG. 1C2 is composed of one node N, one node Ng, one node Ns, and one node Nd.
- Node Ng represents the gate
- node Ns represents the source
- node Nd represents the drain.
- Node N is an element node
- nodes Ng, Ns, and Nd are terminal nodes connected to node N, respectively.
- FIG. 1D1 shows the circuit symbol of the MOSFET transistor
- FIG. 1D2 shows the corresponding graph.
- the MOSFET transistor shown in FIG. 1D1 is used when the source / drain is distinguished (the one with the arrow is the source).
- the graph of FIG. 1D2 is composed of one node P, one node Pg, one node Ps, and one node Pd.
- Node Pg represents the gate
- node Ps represents the source
- node Pd represents the drain.
- the node P is an element node
- the nodes Pg, Ps, and Pd are terminal nodes connected to the node P, respectively.
- FIG. 1E1 shows the circuit symbol of an NMOS transistor having two gate electrodes
- FIG. 1E2 shows the corresponding graph.
- the graph of FIG. 1E2 is composed of one node N, two node Nsd, one node Ng, and one node Nbg.
- Node Ng represents a first gate (also referred to as a front gate)
- node Nbg represents a second gate (also referred to as a back gate)
- node Nsd represents a source or drain.
- Node N is an element node
- nodes Ng, Nbg, and Nsd are terminal nodes connected to node N, respectively.
- a graph of a MOSFET transistor having two gate electrodes can be defined in the same manner.
- FIG. 1F1 shows a circuit symbol of an NMOS transistor to which a substrate potential can be applied
- FIG. 1F2 shows a corresponding graph.
- the graph of FIG. 1F2 is composed of one node N, two node Nsd, one node Ng, and one node Nsub.
- Node Ng represents a gate
- node Nsub represents a substrate to which an electric potential can be applied
- node Nsd represents a source or drain.
- Node N is an element node
- nodes Ng, Nsub, and Nsd are terminal nodes connected to node N, respectively.
- a graph of a MOSFET transistor to which a substrate potential can be applied can be defined in the same manner.
- information on the semiconductor material used for the channel of the MOS transistor can be included in the circuit diagram and the graph.
- FIG. 2A1 shows a circuit symbol of an NMOS transistor using silicon as a channel
- FIG. 2A2 shows a corresponding graph.
- the graph of FIG. 2A2 is composed of one node SN, two node SNsd, and one node SNg.
- the node SNg represents a gate and the node SNsd represents a source or drain.
- the node SN is an element node, and the node SNg and SNsd are terminal nodes connected to the node SN, respectively.
- FIG. 2B1 shows a circuit symbol of a MOSFET transistor using silicon as a channel
- FIG. 2B2 shows a corresponding graph.
- the graph of FIG. 2B2 is composed of one node SP, two node SPsd, and one node SPg.
- the node SPg represents the gate and the node SPsd represents the source or drain.
- the node SP is an element node, and the nodes SPg and SPsd are terminal nodes connected to the node SP, respectively.
- an oxide semiconductor can be used as the semiconductor material of the transistor.
- a transistor using an OS in the channel formation region is preferable because the leakage current is extremely small in a non-conducting state.
- Such transistors can be used in semiconductor devices such as display devices, projection devices, lighting devices, electro-optical devices, power storage devices, storage devices, semiconductor circuits, imaging devices, and electronic devices.
- Specific examples of the display device include a liquid crystal display device, a light emitting display device, and the like.
- specific examples of the semiconductor circuit include an LSI such as a CPU and a memory, and an IC chip on which one or more of them are mounted. Since the transistor using the OS in the channel formation region has an extremely small leakage current in the non-conducting state, it is possible to provide a semiconductor device having low power consumption.
- an oxide containing at least one of indium (In), gallium (Ga), and zinc (Zn) can be used.
- OS In-M-Zn oxide
- element M is aluminum, gallium, yttrium, tin, copper, vanadium, beryllium, boron, titanium, iron, nickel, germanium, zirconium, molybdenum, lantern, cerium, neodymium).
- Hafnium, tantalum, tungsten, magnesium, etc. (one or more) and the like may be used.
- aluminum, gallium, yttrium, tin and the like are preferably contained.
- In—Ga oxide or In—Zn oxide may be used as the OS.
- the OS preferably has a crystal structure.
- the OS having a crystal structure include CAAC-OS (c-axis aligned crystalline oxide semiconductor), polycrystalline oxide semiconductor, and nc-OS (nanocrystalline oxide semiconductor).
- CAAC-OS has a c-axis orientation and has a distorted crystal structure in which a plurality of nanocrystals are connected in the ab plane direction.
- the strain refers to a region in which a plurality of nanocrystals are connected, in which the orientation of the lattice arrangement changes between a region in which the lattice arrangement is aligned and a region in which another lattice arrangement is aligned.
- nanocrystals are basically hexagonal, they are not limited to regular hexagons and may have non-regular hexagons.
- it may have a lattice arrangement such as a pentagon and a heptagon.
- CAAC-OS it is difficult to confirm a clear grain boundary (also referred to as grain boundary) even in the vicinity of strain. That is, it can be seen that the formation of grain boundaries is suppressed by the distortion of the lattice arrangement. This is because CAAC-OS can tolerate distortion because the arrangement of oxygen atoms is not dense in the ab plane direction and the bond distance between atoms changes due to substitution of metal elements. Because.
- CAAC-OS is a layered crystal in which a layer having indium and oxygen (hereinafter, In layer) and a layer having elements M, zinc, and oxygen (hereinafter, (M, Zn) layer) are laminated. It tends to have a structure (also called a layered structure). Indium and the element M can be replaced with each other, and when the element M of the (M, Zn) layer is replaced with indium, it can be expressed as the (In, M, Zn) layer. Further, when the indium of the In layer is replaced with the element M, it can be expressed as the (In, M) layer.
- CAAC-OS is a highly crystalline metal oxide.
- CAAC-OS it is difficult to confirm a clear crystal grain boundary, so it can be said that a decrease in electron mobility due to the crystal grain boundary is unlikely to occur.
- CAAC-OS impurities and defects oxygen deficiency (V O:. Oxygen vacancy also referred) etc.) with less metal It can also be called an oxide. Therefore, the metal oxide having CAAC-OS has stable physical properties. Therefore, the metal oxide having CAAC-OS is resistant to heat and has high reliability.
- the nc-OS has periodicity in the atomic arrangement in a minute region (for example, a region of 1 nm or more and 10 nm or less, particularly a region of 1 nm or more and 3 nm or less).
- nc-OS does not show regularity in crystal orientation between different nanocrystals. Therefore, no orientation is observed in the entire film. Therefore, nc-OS may be indistinguishable from a-like OS and amorphous oxide semiconductors depending on the analysis method.
- Indium-gallium-zinc oxide which is a kind of metal oxide having indium, gallium, and zinc, may have a stable structure by forming the above-mentioned nanocrystals. is there.
- IGZO tends to have difficulty in crystal growth in the atmosphere, it is recommended to use smaller crystals (for example, the above-mentioned nanocrystals) than large crystals (here, a few mm crystal or a few cm crystal). However, it may be structurally stable.
- the OS may be a pseudo-amorphous oxide semiconductor (a-like OS: amorphous-like oxide semiconductor) or an amorphous oxide semiconductor.
- the a-like OS is a metal oxide having a structure between the nc-OS and an amorphous oxide semiconductor.
- the a-like OS has a void or low density region. That is, the a-like OS has lower crystallinity than the nc-OS and CAAC-OS.
- the OS has various structures, and each has different characteristics.
- the OS of one aspect of the present invention may have two or more of an amorphous oxide semiconductor, a polycrystalline oxide semiconductor, an a-like OS, an nc-OS, and a CAAC-OS.
- FIG. 2C1 shows a circuit symbol of an NMOS transistor using an OS as a channel
- FIG. 2C2 shows a corresponding graph.
- the graph of FIG. 2C2 is composed of one node ON, two node ONsd, and one node ONg.
- Node ONg represents a gate and node ONsd represents a source or drain.
- Node ON is an element node, and nodes ONg and ONsd are terminal nodes connected to node ON, respectively.
- FIG. 2D1 shows a circuit symbol of a MOSFET transistor using an OS as a channel
- FIG. 2D2 shows a corresponding graph.
- the graph of FIG. 2D2 is composed of one node OP, two node OPsd, and one node OPg.
- Node OPg represents a gate and node OPsd represents a source or drain.
- the node OP is an element node, and the nodes OPg and OPsd are terminal nodes connected to the node OP, respectively.
- FIG. 2E1 shows a circuit symbol of an NMOS transistor using an OS as a channel and having two gate electrodes
- FIG. 2E2 shows a corresponding graph.
- the graph of FIG. 2E2 is composed of one node ON, two node ONsd, one node ONg, and one node ONbg.
- Node ONg represents a first gate (also referred to as a front gate)
- node ONbg represents a second gate (also referred to as a back gate)
- node ONsd represents a source or drain.
- Node ON is an element node
- nodes ONg, ONbg, and ONsd are terminal nodes connected to node ON, respectively.
- FIG. 2F1 shows a circuit symbol of an NMOS transistor that uses silicon as a channel and can apply a substrate potential
- FIG. 2F2 shows a corresponding graph.
- the graph of FIG. 2F2 is composed of one node SN, two node SNsd, one node SNg, and one node SNsub.
- the node SNg represents a gate
- the node SNsub represents a substrate to which an electric potential can be applied
- the node SNsd represents a source or drain.
- the node SN is an element node
- the nodes SNg, SNsub, and SNsd are terminal nodes connected to the node SN, respectively.
- FIG. 3A1 shows the circuit symbol of the NPN type bipolar transistor
- FIG. 3A2 shows the corresponding graph.
- the graph of FIG. 3A2 is composed of one node NB, one node NBb, one node NBe, and one node NBc.
- Node NBb represents the base
- node NBe represents the emitter
- node NBc represents the collector.
- the node NB is an element node
- the nodes NBb, NBe, and NBc are terminal nodes connected to the node NB, respectively.
- FIG. 3B1 shows the circuit symbol of the PNP type bipolar transistor
- FIG. 3B2 shows the corresponding graph.
- the graph of FIG. 3B2 is composed of one node PB, one node PBb, one node PBe, and one node PBc.
- Node PBb represents the base
- node PBe represents the emitter
- node PBc represents the collector.
- the node PB is an element node
- the nodes PBb, PBe, and PBc are terminal nodes connected to the node PB, respectively.
- FIG. 3C1 shows the capacitance circuit symbol and FIG. 3C2 shows the corresponding graph.
- the graph of FIG. 3C2 is composed of one node C and two nodes Ct.
- Node C is an element node, and node Ct is a terminal node connected to node C.
- FIG. 3D1 shows the circuit symbol of the resistor
- FIG. 3D2 shows the corresponding graph.
- the graph of FIG. 3D2 is composed of one node R and two nodes Rt.
- Node R is an element node
- node Rt is a terminal node connected to node R.
- FIG. 3E1 shows the circuit symbol of the inductor
- FIG. 3E2 shows the corresponding graph.
- the graph of FIG. 3E2 is composed of one node L and two nodes Lt.
- Node L is an element node
- node Lt is a terminal node connected to node L.
- FIG. 3F1 shows the circuit symbol of the diode
- FIG. 3F2 shows the corresponding graph.
- the graph of FIG. 3F2 is composed of one node D, one node Da, and one node Dc.
- Node Da represents the anode and node Dc represents the cathode.
- Node D is an element node, and nodes Da and Dc are terminal nodes connected to node D.
- FIG. 3G1 shows the circuit symbol of the light emitting diode
- FIG. 3G2 shows the corresponding graph.
- the graph of FIG. 3G2 is composed of one node LE, one node LEa, and one node LEc.
- Node LEa represents the anode and node LEc represents the cathode.
- the node LE is an element node, and the nodes LEa and LEc are terminal nodes connected to the node LE.
- the graph representing the circuit element can be defined by the "element node” and the "terminal node”.
- the number of element nodes is one, and the number of terminal nodes exists as many as the number of terminals possessed by the element.
- Graphs can be defined in the same manner for other circuit symbols not shown in FIGS. 1A1 to 3G2.
- FIG. 4A shows a circuit diagram of a SRAM (Static Random Access Memory) composed of CMOS transistors
- FIG. 4B shows a graph corresponding thereto.
- some edges are represented by curves for ease of viewing.
- the SRAM of FIG. 4A is composed of four NMOS transistors, two MOSFET transistors, a wiring WL, two wiring BLs, a power supply line (Vdd), and a GND. Of the two wiring BLs, the inverted signal of the other is input to one of them.
- the graph of FIG. 4B is composed of the graphs shown in FIGS. 1A2 and 1B2 and terminal nodes representing each wiring such as wiring WL and wiring BL. Each terminal node shares an edge with all equipotential terminal nodes.
- wiring such as wiring WL and wiring BL may be provided as needed, and may be omitted if unnecessary.
- FIG. 5A shows a pixel circuit of an organic EL display
- FIG. 5B shows a corresponding graph.
- some edges are represented by curves with an emphasis on visibility.
- the pixel circuit of FIG. 5A includes three NMOS transistors, one capacitance, one light emitting diode (OLED: organic light-emitting diode), a scanning line GL, a signal line SL, a monitor line ML, an anode ANL, and a cathode CTL. Consists of.
- the three NMOS transistors each have a first gate and a second gate.
- the graph of FIG. 5B is composed of the graphs shown in FIGS. 1E2, 3C2, and 3G2, and terminal nodes representing each wiring such as scanning line GL and signal line SL. Also, as in FIG. 4B, each terminal node shares an edge with all equipotential terminal nodes.
- wirings such as scanning line GL, signal line SL, and monitor line ML may be provided as needed, and may be omitted if unnecessary.
- FIG. 6A is a circuit diagram of a memory cell using an OS transistor.
- the memory cell is a non-volatile memory utilizing the low off-current of the OS transistor, and is called NOSRAM (registered trademark, Nonvolatile Oxide Semiconductor RAM).
- NOSRAM registered trademark, Nonvolatile Oxide Semiconductor RAM
- the NOSRAM of FIG. 6A includes an OS transistor having one back gate, two Si-MOSFET transistors, a capacitance C, a wiring BL, a wiring SL, a wiring WWL, a wiring RWL, a wiring WCL, and a wiring BG. It is composed of.
- the graph of FIG. 6B is composed of the graphs shown in FIGS. 2B2, 2E2 and 3C2, and terminal nodes representing each wiring such as wiring BL and wiring SL. Also, as in FIGS. 4B and 5B, each terminal node shares an edge with all equipotential terminal nodes.
- wirings such as wiring BL, wiring SL, wiring WWL, wiring RWL, wiring WCL, and wiring BG may be provided as needed, and may be omitted if unnecessary.
- the characteristics of the circuit can be represented in a graph by distinguishing each transistor in a graph.
- the circuit diagram When the circuit diagram is represented by a graph, it is not always necessary to graph all the wiring. For example, only the wiring showing the characteristics of the circuit may be graphed.
- FIG. 4B it is not necessary to graphically represent all of the wiring WL, the wiring BL, the power supply line Vdd, and the GND. Only some of these may be represented graphically, or they may not be represented graphically.
- FIG. 5B it is not necessary to graph all of the scanning line GL, the signal line SL, the monitor line ML, the anode ANL, and the cathode CTL. Only some of these may be represented graphically, or they may not be represented graphically.
- FIG. 6B it is not necessary to graphically represent all of the wiring BL, the wiring SL, the wiring WWL, the wiring RWL, the wiring WCL, and the wiring BG. Only some of these may be represented graphically, or they may not be represented graphically.
- FIGS. 7A, 7B, and 8A is an example of a search device having a function of searching a circuit diagram registered in a database close to a circuit diagram input by a user and displaying the result. ..
- FIG. 9 is a block diagram showing an example of the configuration of the terminal 10.
- the terminal 10 has a display unit 101, an input unit 103, a processing unit 105, a calculation unit 107, a storage unit 109, and an external connection circuit 111.
- the display unit 101 is preferably a touch panel display.
- the calculation unit 107 may also function as the processing unit 105.
- FIGS. 8B and 8C show an example of a circuit diagram displayed on the display unit 101 of the terminal 10.
- the database may be stored in a storage unit 109 built in the terminal 10, or may be stored in an external storage device connected to the terminal 10. Further, as shown in FIG. 10, the database may be stored in the server 50 connected to the terminal 10 via a network. The terminal 10 can be connected to the network by using the external connection circuit 111.
- the network includes a local area network (LAN) and the Internet.
- the network can use either wired communication, wireless communication, or both.
- wireless communication in addition to short-range communication means such as Wi-Fi (registered trademark) and Bluetooth (registered trademark), communication means compliant with the third generation mobile communication system (3G), LTE
- 3G third generation mobile communication system
- LTE Various means such as a communication means compliant with (sometimes called 3.9G), a communication means compliant with the 4th generation mobile communication system (4G), or a communication means compliant with the 5th generation mobile communication system (5G).
- Communication means can be used.
- FIG. 10 shows an example in which a desktop computer is used as the terminal 30 and a laptop computer is used as the terminal 40.
- the terminal 30 has a main body 301, a display unit 302, and an input unit 303.
- the terminal 40 has a main body 401, a display unit 402, and an input unit 403. It is preferable that the terminal 30 and the terminal 40 have a processing unit 105, a calculation unit 107, a storage unit 109, and a processing unit, a calculation unit, a storage unit, and an external connection circuit corresponding to the external connection circuit 111, respectively. ..
- the server 50 includes a rack 501 and a plurality of rack-mounted computers 502.
- the database is stored in the storage device provided in the computer 502.
- the terminal 30 and the terminal 40 have the same functions as the terminal 10, and are connected to the server 50 via a network.
- the terminal 10, the terminal 30, and the terminal 40 can access the database stored in the computer 502 of the server 50.
- FIG. 7A and 7B show an example in which the user inputs a circuit diagram to be searched for in the terminal 10.
- the area 11 and the area 12 are displayed on the display unit 101 of the terminal 10, and the user creates a circuit diagram to be searched for in the area 11.
- Areas 13 and 14 are arranged above and below the areas 11 and 12, respectively.
- Circuit elements constituting the circuit diagram are arranged in the region 13 and the region 14.
- the terminal 10 is provided with input means such as a touch panel display, a keyboard, and a mouse, and the user can create a desired circuit diagram by dragging and dropping each circuit element into the area 11 ().
- FIG. 7A shows an example in which the user inputs a circuit diagram to be searched for in the terminal 10.
- the area 11 and the area 12 are displayed on the display unit 101 of the terminal 10, and the user creates a circuit diagram to be searched for in the area 11.
- Areas 13 and 14 are arranged above and below the areas 11 and 12, respectively.
- Circuit elements constituting the circuit diagram are arranged in the
- the graph may be created by the calculation unit 107.
- the created graph is displayed in the area 12. Further, when the user touches any one of the circuit elements in the area 11, the colors of the nodes and edges of the graph corresponding to the elements touched by the user change in the area 12 (FIG. 7B). As a result, the user can confirm the correspondence between the circuit diagram created by himself / herself and the graph generated by the terminal 10.
- the terminal 10 can handle the netlist as input data instead of the circuit diagram.
- the netlist is a text file in which connection information of circuit elements is described.
- the terminal 10 can convert the netlist into a graph.
- the terminal 10 can also handle the graph directly as input data.
- the terminal 10 can handle the image data on which the circuit diagram is drawn as the input data.
- the terminal 10 can read the connection information of the circuit element from the image data and generate a graph.
- a label histogram kernel method a random walk kernel method, a WL (Weissfiler-Lehman) kernel method, a GNN (Graph Neural Network), or the like may be used for calculating the similarity between graphs.
- the method using the WL kernel method is preferable because it has high accuracy and a short calculation time.
- the circuit G shown in FIG. 11A1 is a circuit in which an NMOS transistor and a MOSFET transistor are connected in series. Further, the circuit G'shown in FIG. 11A2 is a circuit in which an NMOS transistor and a MOSFET transistor are connected in parallel.
- a method of calculating the similarity between these two circuits will be described.
- FIG. 11B1 is a graph showing the circuit G
- FIG. 11B2 is a graph showing the circuit G'. Labels (numbers) are assigned to the nodes that make up these graphs for each node type. In FIGS. 11B1 and 11B2, the numbers in parentheses correspond to the labels.
- Equation 1 represents the feature vector of circuit G
- ⁇ (G ′) in Equation 2 represents the feature vector of circuit G ′.
- Equation 2 For example, on the right side of Equation 1, from left to right, there is one label “1", one label "2", two label "3", one label "4", and one label "5". It means that there are two labels "6". The same applies to Equation 2.
- FIG. 11C1 the labels of adjacent nodes are counted (FIGS. 11C1 and 11C2).
- "1.233" in FIG. 11C1 means that the adjacent node of the label "1" has one label "2" and two labels "3". The same applies to other nodes.
- FIGS. 11D1 and 11D2 are reassigned to circuits G and G'(see FIGS. 11E1 and 11E2).
- the series of operations shown in FIGS. 11C1, 11D1, and 11E1 (or FIGS. 11C2, 11D2, and 11E2) is referred to as relabeling.
- Equation 3 represents the feature vector of circuit G
- Equation 4 represents the feature vector of circuit G'.
- Equation 3 For example, on the right side of Equation 3, the first 6 terms are the same as Equation (1) in order from the left, but the following 8 terms are added by relabeling. The same applies to Equation 4.
- the calculation of the similarity may be performed by the calculation unit 107 such as the CPU or GPU built in the terminal 10, or the calculation of the CPU or GPU built in the server 50 connected to the terminal 10 via the network. It may be done by means.
- FIG. 8A shows an example in which the search result is displayed on the display unit 101 of the terminal 10.
- the circuit diagram of the search query input by the user is displayed in the area 16 of the display unit 101, and the list of search results is displayed in the area 18.
- the numerical value 19 in the region 18 indicates the degree of similarity.
- FIGS. 8B and 8C both represent SRAM and are equivalent as circuits.
- the search system cannot understand the circuit connection information, it will recognize these two circuits as different drawings.
- FIGS. 8B and 8C are replaced with the same graph, so that the search system of the present invention can recognize the two as the same circuit diagram.
- a sentence explaining the displayed circuit diagram can also be displayed.
- the user can compare the input text information with the circuit diagram or sentence displayed on the terminal 10 while referring to the obtained similarity.
- FIG. 12 is a flowchart illustrating one aspect of the circuit diagram of the present invention and a method of searching for sentences explaining the circuit diagram.
- the circuit diagram information is input to the terminal 10 (S101).
- the user inputs a circuit element to the terminal 10 using the input unit 103.
- a circuit diagram can be created by using a plurality of circuit elements.
- the input circuit element and the created circuit diagram are used as circuit diagram information.
- the processing unit 105 generates a graph from the input circuit diagram information (S102).
- the generated graph will be referred to as the first graph for convenience.
- the processing unit 105 has a second storage unit for temporarily storing the input circuit diagram information and a second calculation unit for generating the first graph.
- the input circuit diagram information may be temporarily stored in the storage unit 109.
- the calculation unit 107 may generate the first graph.
- the calculation unit 107 calculates the degree of similarity between the first graph and the plurality of graphs registered in the database (S103).
- the graph registered in the database is referred to as a second graph for convenience.
- the similarity between the first graph stored in the processing unit 105 or the storage unit 109 and the second graph is determined by the label histogram kernel method, the random walk kernel method, the WL kernel method, the GNN, and the like. Calculate using.
- the similarity is calculated for each of the plurality of second graphs. It can be said that the larger the degree of similarity, the more similar the second graph is to the first graph.
- the terminal 10 can connect to the network and access the database by using the external connection circuit 111.
- the above calculation may be performed on the server 50.
- the data of the first graph is transmitted to the server 50 via the external connection circuit 111 and the network, and the server 50 calculates the similarity between the first graph and the second graph.
- the calculation result is transmitted to the terminal 10 via the network and the external connection circuit 111.
- the calculation result that is, the search result is displayed on the display unit 101 (S104).
- the similarity can be displayed in descending order. Further, at the same time as displaying the similarity, one or a plurality of graphs, circuit diagrams, and sentences explaining the circuit diagrams corresponding to the similarity may be displayed. Further, the calculation results may be displayed in the order of the earliest or the latest creation date of the circuit diagram and the text explaining the circuit diagram within a certain degree of similarity.
- the user can search for a desired circuit diagram or a circuit diagram similar to the desired circuit diagram from a plurality of circuit diagrams registered in the database based on the calculation result.
- one aspect of the present invention makes it possible to provide a circuit diagram and a search method capable of searching a sentence explaining the circuit diagram. Moreover, according to one aspect of the present invention, it becomes possible to provide a circuit diagram and a search device capable of searching a sentence explaining the circuit diagram. In addition, one aspect of the present invention makes it possible to provide a circuit diagram and a search system capable of searching a sentence explaining the circuit diagram.
- the text information is graphed, compared with the graph information registered in the database, and the similarity is calculated.
- the text information includes circuit diagram information, that is, information expressing circuit elements and their connection relationships in characters. Specific examples of text information include texts such as papers and patent specifications. In particular, in the patent specification, text information includes a form for carrying out the invention, examples, claims described in the claims, and the like.
- the text information is input to the terminal 10 as a search query (FIG. 13, S201).
- a keyboard or the like can be displayed in the area 15 of the display unit 101 of the terminal 10 and text information can be input.
- the entered text information is displayed in the area 11.
- text information may be input by copying and pasting the electronic data of the text prepared by the user.
- the terminal 10 or the server 50 connected to the terminal 10 via a network extracts a circuit element from the text information input to the terminal 10.
- the element node is specified from the name of the circuit element (S202).
- the circuit element refers to a transistor, a capacitance, a resistor, an inductor, a diode, a light emitting diode, and the like.
- the terminal 10 or the server 50 identifies the terminal node included in the circuit element (S203).
- the terminal node can be specified based on the text information input to the terminal 10 or the information registered in the database of the terminal 10 or the server 50.
- connection relationship of the terminal nodes is specified from the text information input to the terminal 10 (S204).
- the terminal 10 or the server 50 acts as an element node. , Transistor, and capacitance.
- the terminal 10 or the server 50 specifies at least 3 terminal nodes for the element node of the transistor and 2 terminal nodes for the element node of the capacitance.
- connection relationship that one of the terminal node corresponding to the gate of the transistor and the terminal node of the capacitance is connected can be specified.
- the terminal 10 or the server 50 specifies the connection relationship between the element node, the terminal node, and each terminal node from the text information.
- the circuit diagram information is graphed from the obtained element node, terminal node, and connection relationship of each terminal node, and the first graph is created (S205).
- the obtained first graph can be displayed in the area 12 of the display unit 101 as shown in FIG. 14B.
- graph data, sentences corresponding to the graph data, and circuit diagrams corresponding to the graph data may be registered in the database.
- the similarity of the graph is obtained as described above and the similarity is displayed on the terminal 10
- the sentence corresponding to the similarity and one or both of the circuit diagrams may be displayed together.
- the user can appropriately select the similarity of the graph, the text, and the display method of the circuit diagram.
- the user can search for similar sentences and circuit diagrams by inputting text information.
- the user can compare the input text information with the text or circuit diagram displayed on the terminal 10 while referring to the obtained similarity.
- one aspect of the present invention makes it possible to provide a circuit diagram and a search method capable of searching a sentence explaining the circuit diagram. Moreover, according to one aspect of the present invention, it becomes possible to provide a circuit diagram and a search device capable of searching a sentence explaining the circuit diagram. In addition, one aspect of the present invention makes it possible to provide a circuit diagram and a search system capable of searching a sentence explaining the circuit diagram.
- circuit diagram was represented by a graph, and the similarity between the graphs was calculated using the method of the WL (Weissfiler-Lehman) kernel.
- FIG. 15 is an example in which the similarity ( KWL ) between the circuit diagram G input as a query and the circuit diagram G'to be compared is calculated by using the above-mentioned WL kernel method. That is, FIG. 15 compares the circuit diagram 1101 with the circuit diagram 1102, the circuit diagram 1103, and the circuit diagram 1104, respectively.
- the circuit diagram 1101 is a circuit diagram in which CMOS inverters are connected in a loop.
- the circuit diagram 1102 is a circuit diagram in which two CMOS inverters are connected in series.
- Circuit diagram 1103 is a circuit diagram of SRAM.
- Circuit diagram 1104 is a circuit diagram of a NAND gate.
- FIG. 16A to 16D are graphs of the circuit diagrams shown in FIG. 16A shows the graph of circuit diagram 1101, FIG. 16B shows the graph of circuit diagram 1102, FIG. 16C shows the graph of circuit diagram 1103, and FIG. 16D shows the graph of circuit diagram 1104.
- the K WL shown in FIG. 15 is a Gaussian kernel represented by the equation 5, and represents the similarity between the two circuit diagrams. The closer the K WL value is to 1, the more similar the two schematics are.
- ⁇ in Equation 5 was set to 0.001
- the number of iterations was set to 3.
- the above relabeling calculation and KWL calculation may be performed at the terminal 10 or at the server.
- Terminal 10: Terminal, 11: Area, 12: Area, 13: Area, 14: Area, 15: Area, 16: Area, 17: Area, 18: Area, 19: Numerical value
- 30: Terminal, 40: Terminal, 50: Server 101: Display unit, 103: Input unit, 105: Processing unit, 107: Calculation unit, 109: Storage unit, 111: External connection circuit, 301: Main unit, 302: Display unit, 303: Input unit, 401: Main unit , 402: Display unit, 403: Input unit, 501: Rack, 502: Computer, 1101: Circuit diagram, 1102: Circuit diagram, 1103: Circuit diagram, 1104: Circuit diagram
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Abstract
Description
図2A1乃至図2F2は、回路素子、または該回路素子に対応するグラフを示し、本発明の一態様を説明する図である。
図3A1乃至図3G2は、回路素子、または該回路素子に対応するグラフを示し、本発明の一態様を説明する図である。
図4A、および図4Bは、回路図、または該回路図に対応するグラフを示し、本発明の一態様を説明する図である。
図5A、および図5Bは、回路図、または該回路図に対応するグラフを示し、本発明の一態様を説明する図である。
図6A、および図6Bは、回路図、または該回路図に対応するグラフを示し、本発明の一態様を説明する図である。
図7A、および図7Bは、本発明の一態様の回路図検索に用いられる端末の操作方法を説明する模式図である。
図8Aは、本発明の一態様の回路図検索に用いられる端末の操作方法を説明する模式図である。図8B、および図8Cは、本発明の一態様の回路図の一例である。
図9は、本発明の一態様の端末を説明する模式図である。
図10は、本発明の一態様の回路図検索に用いられるネットワークを説明する模式図である。
図11A1乃至図11E2は、本発明の一態様のグラフどうしの類似度の計算方法を説明する図である。
図12は、本発明の一態様を説明するフローチャートである。
図13は、本発明の一態様を説明するフローチャートである。
図14A、および図14Bは、本発明の一態様の回路図検索に用いられる端末の操作方法を説明する模式図である。
図15は、本発明の一実施例を説明する図である。
図16A乃至図16Dは、本発明の一実施例を説明する図である。
本実施の形態では、本発明の一態様である検索システムについて説明を行う。本実施の形態の検索システムでは、回路図や回路図を説明する文章の検索を行うことができる。
ここで、グラフどうしの類似度を計算する手法の一つである、WLカーネルの方法について、単純な回路を用いて説明を行う。
本実施の形態では、図13、および図14を用いて、先の実施の形態とは異なる、本発明の一態様である検索システムについて説明を行う。本実施の形態の検索システムでは、回路図を説明する文章や回路図の検索を行うことができる。
図15は、クエリとして入力した回路図Gと、比較対象の回路図G′の類似度(KWL)を、上述のWLカーネルの方法を用いて計算した例である。すなわち、図15は、回路図1101と、回路図1102、回路図1103、および回路図1104それぞれとの比較を行っている。
Claims (7)
- 端末に第1の回路図情報を入力する手段と、
第2の回路図情報が登録されたデータベースと、
入力された前記第1の回路図情報を第1のグラフに変換する手段と、
前記第1のグラフと、前記第2の回路図情報に基づく第2のグラフとの類似度を計算する演算手段と、
前記類似度を前記端末に表示する手段と、
を有する検索システム。 - 請求項1において、
前記検索システムは、前記端末とネットワークを介して接続するサーバーを有し、
前記データベースは、前記サーバーに保存される検索システム。 - 請求項1または請求項2において、
前記第1の回路図情報は、回路図を構成する回路素子である検索システム。 - 請求項1または請求項2において、
前記第1の回路図情報は、回路図を説明するテキストである検索システム。 - 端末に入力された第1の回路図情報を第1のグラフに変換する工程と、
前記第1のグラフと、データベースに登録された第2のグラフとの類似度を計算する工程と、
前記類似度を前記端末に表示する工程と、
を有する検索方法。 - 請求項5において、
前記第1の回路図情報は、回路図を構成する回路素子である検索方法。 - 請求項5において、
前記第1の回路図情報は、回路図を説明するテキストである検索方法。
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