JP2008267852A - Recorded waveform displaying method, its device, and selective display method for data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display data within a desired domain from among data stored in a storage part while quickly and simply switching them. <P>SOLUTION: A recorded waveform displaying device includes a plurality of display domain designation parts (knobs) 221 and 222 that designate prescribed display domains among all of data stored in the storage part in reproducing/displaying signal waveforms of analog data on a display image plane by giving read-out digital data to a display part after storing A/D converted input analog data in the storage part. On the image plane 210, a scroll bar 212 having a length equating with all data length is displayed along a waveform display part 211 for displaying signal waveforms thereon while simultaneously displaying knob marks NB1 and NB2 corresponding to the respective knobs 221 and 222 in the scroll bar 212. One knob mark NB selected by an operation part is made active and movable in a prescribed direction within the scroll bar 212. Data within a display domain corresponding to the position of the knob mark NB are displayed in the display part 211. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording waveform display method and apparatus, and a data selective display method. More specifically, the present invention relates to a method for quickly and easily switching data within a desired range from data stored in a storage unit. It relates to the display technology.

  In a waveform recording apparatus, an analog signal under measurement is usually A / D converted and stored in a storage unit, and then data is read from the storage unit and displayed on a display screen.

  In that case, since the display area of the display screen is limited, if the amount of data stored in the storage unit is large, if the entire data is displayed on the display screen, the entire waveform may be extremely compressed and analyzed. It becomes difficult.

  Therefore, for example, in the invention described in Patent Document 1, the display screen 1 has a length corresponding to the total data length stored in the waveform display unit 2 and a storage unit (not shown) as shown in FIG. A scroll bar 3 is set, and a knob mark (display range mark) 4 for designating a display range is displayed in the scroll bar 3.

  According to this, when the down button 3a and the up button 3b arranged at both ends of the scroll bar 3 are clicked with, for example, a mouse pointer (not shown), the knob mark 4 moves in the time axis direction, and all the data is displayed. A part of the data corresponding to the position of the knob mark 4 is read from the inside, and the signal waveform is enlarged and displayed on the waveform display unit 2.

  In addition, the position of the knob mark 4 in the scroll bar 3 makes it easy to grasp at which part of the entire data the displayed signal waveform is located.

Japanese Patent Laid-Open No. 7-243871

  However, since there is only one knob mark 4 in the above prior art, when it is desired to switch and observe partial waveforms at a plurality of locations in all data, the knob mark 4 is operated by operating the down button 3a and the up button 3b each time. There is a problem that it must be moved and the operation is troublesome.

  Accordingly, an object of the present invention is to make it possible to quickly and easily switch and display data within a desired range from data stored in a storage unit.

  In order to solve the above-mentioned problem, the invention according to claim 1 converts the input analog data into digital data and stores it in the storage unit, and then reads the digital data from the storage unit and gives it to the display unit. In the recording waveform display method for reproducing and displaying the signal waveform of the analog data on the display screen of the display unit, a plurality of displays for designating a predetermined display range of all data stored in the storage unit An operation unit including a range specifying unit is provided, and a scroll bar having a length corresponding to the total data length stored in the storage unit is displayed on the display screen along the waveform display unit on which the signal waveform is displayed. At the same time, a knob mark corresponding to each display range designation portion is simultaneously displayed in the scroll bar, and one knob mark selected by the operation portion is activated. To is characterized in that is movable in a predetermined direction within the scroll bar and displays the data in the display range corresponding to the position of the Nobumaku to the waveform display unit.

  According to a second aspect of the present invention, there is provided an input unit having an A / D conversion function for converting input analog data into digital data, a storage unit for storing the digital data output from the input unit, and a display screen A display unit having a display unit, an operation unit for inputting predetermined instructions, and writing and reading of data to and from the storage unit based on the instructions of the operation unit and controlling the data read from the storage unit to the display And a recording waveform display device including a control means for reproducing and displaying the signal waveform of the analog data on the display screen and a waveform display unit on which at least the signal waveform is displayed on the display screen; A scroll bar display unit on which a scroll bar having a length corresponding to the total data length stored in the storage unit is displayed. The unit includes a plurality of display range designating units for designating a predetermined display range among all data stored in the storage unit, and the control means includes each display range designating unit in the scroll bar. The knob mark corresponding to is simultaneously displayed, and based on an instruction from the operation unit, the specific knob mark is activated to be movable in a predetermined direction in the scroll bar, and the position of the specific knob mark from the storage unit The data within the display range corresponding to is read out, and the signal waveform is displayed on the waveform display section.

  According to a third aspect of the present invention, in the recording waveform display apparatus according to the second aspect, each display range designating section includes a display magnification setting section.

  According to a fourth aspect of the present invention, in the recording waveform display device according to the second or third aspect, the control means includes the total number of data stored in the storage unit at a predetermined portion of the display screen, and the waveform. The left and right data positions of the signal waveform displayed on the display unit are displayed.

  According to a fifth aspect of the present invention, in the recorded waveform display device according to any one of the second to fourth aspects, movement buttons for moving the knob mark in the time axis direction are displayed on both ends of the scroll bar. The control means moves the specific knob mark in a predetermined direction within the scroll bar based on a movement command input from the movement button.

  According to a sixth aspect of the present invention, in the recorded waveform display device according to any one of the second to fifth aspects, the operation section is provided with a simultaneous movement instruction section for the knob mark, and the control means Is characterized in that when the simultaneous movement instructing section is set to ON, the plurality of knob marks are simultaneously moved in the same direction and the same distance.

  According to a seventh aspect of the present invention, in the recorded waveform display device according to any one of the second to sixth aspects, the operation unit displays a plurality of the waveform display units corresponding to the knob marks. A screen number setting unit is provided, and the control means prepares the number of the waveform display units set by the screen number setting unit in the display screen, and each of the waveform display units includes each of the waveform display units. A signal waveform within a display range corresponding to the position of the knob mark is displayed.

  According to an eighth aspect of the present invention, in the recording waveform display device according to the seventh aspect, the knob mark and / or the waveform display unit activated by the operation unit has a display mode different from an inactive display mode. It is characterized by being displayed.

  The invention according to claim 9 is a data having a matrix shape of m rows × n columns (m and n are arbitrary integers) in which a part of all data stored in the storage unit is set on the display screen. In a method for selectively displaying data displayed on a display unit and selecting a predetermined range of data from all the data and displaying the data on the data display unit, at least one of a row direction or a column direction of the data display unit A scroll bar is displayed over the entire length, and a plurality of knob marks specifying a display range are simultaneously displayed in the scroll bar, and the display content of the data display unit is switched in accordance with the selection of the knob mark. .

  According to a tenth aspect of the present invention, in the data selective display method according to the ninth aspect, the scroll bar including the plurality of knob marks is displayed along each of a row direction and a column direction of the data display unit. In addition, the data display unit displays data at the intersection of the knob marks selected from the row direction scroll bar and the column direction scroll bar.

  According to the first and second aspects of the present invention, since a plurality of knob marks corresponding to each display range designating portion are simultaneously displayed in the scroll bar, by activating any one of the knob marks, It is possible to quickly and easily switch and display data within a desired range from the data stored in the storage unit.

  According to the third aspect of the present invention, since each display range designation section includes a display magnification setting section, the selected signal waveform can be displayed at an arbitrary magnification.

  According to the fourth aspect of the present invention, the total number of data stored in the storage unit and the data positions of the left end and the right end of the signal waveform displayed on the waveform display unit are displayed in a predetermined portion of the display screen. Therefore, it is possible to accurately grasp the position of the currently displayed signal waveform with respect to the entire waveform.

  According to the fifth aspect of the present invention, since the movement buttons for moving the knob mark in the time axis direction are displayed at both ends of the scroll bar, for example, the specific operation that is activated by the operation of the mouse included in the personal computer. The knob mark can be easily moved in a predetermined direction within the scroll bar.

  According to the sixth aspect of the present invention, the operation unit is provided with the simultaneous movement instructing unit that simultaneously moves the plurality of knob marks in the same direction and the same distance, thereby moving the plurality of knob marks while maintaining a constant interval. Therefore, it is useful when comparing waveforms separated by a certain time interval.

  According to the seventh aspect of the present invention, since a plurality of waveform display portions are displayed corresponding to each knob mark, a plurality of signal waveforms can be simultaneously compared without switching the screen of the waveform display portion.

  According to the eighth aspect of the present invention, since the knob mark and / or the waveform display portion that has been activated are displayed in a display mode different from the inactive display mode, it is possible to determine at a glance which signal waveform is currently scrollable. can do.

  According to the ninth aspect of the present invention, a matrix of m rows × n columns (m and n are arbitrary integers) in which a part of all data stored in the storage unit is set on the display screen. Is displayed in the data display section, and when a predetermined range of data is selected from all the data and displayed on the data display section, one of the plurality of knob marks displayed in the scroll bar is bookmarked. It is possible to quickly display a desired range of data from all the data by simply selecting the item.

  According to the tenth aspect of the present invention, since the scroll bar including the plurality of knob marks is displayed along each of the row direction and the column direction of the data display unit, the row direction scroll bar and the column direction scroll bar are displayed. The data of the intersection point of the knob mark selected from among can be quickly displayed.

  Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 9, but the present invention is not limited to this. First, with reference to FIG. 1, the configuration of a display device that displays a recorded waveform in the present invention will be described.

  The display device 100 includes an input terminal 101, a LAN port 102, and a USB port 103 as input / output terminals, and an analog signal under measurement measured by a measuring device (not shown) is input from the input terminal 101.

  The signal under measurement input from the input terminal 101 is converted into digital data by the A / D converter 110 and stored in the storage memory 130 as the main storage unit via the memory control unit 120. In this example, an FPGA (Field Programmable Gate Array) is used for the memory control unit 120.

  An operation unit 140 is connected to the memory control unit 120, and memory control information necessary for writing and reading data to and from the storage memory 130 is given to the memory control unit 120 from the operation unit 140.

  Further, waveform display control information necessary for waveform display is input from the operation unit 140, and this waveform display control information is given to the main control unit 150 via the memory control unit 120. The operation unit 140 may be connected to the main control unit 150 so that the memory control information is given from the main control unit 150 to the memory control unit 120.

  The main control unit 150 includes a RAM 151 and a ROM 152 as storage devices, and the ROM 152 stores a basic program, a waveform display program, and the like that collectively control the display device 100. The RAM 151 is a work RAM. The main control unit 150 may be a CPU (Central Processing Unit), a microcomputer, or the like.

  In the waveform display mode, the main control unit 150 reads data from the storage memory 130 according to the waveform display program stored in the ROM 152 and the waveform display control information from the operation unit 140, and gives the data to the display control unit 161. The signal waveform of the signal under measurement is displayed on the display unit 160.

  Further, the display device 100 includes a LAN (Local Area Network) controller 171 and a USB (Universal Serial Bus) controller 172 as interfaces of the main control unit 150.

  In addition to being able to display the signal waveform of the signal under measurement on the display unit 160 provided in the display device 100, the display device 100 is connected to a personal computer 200 as an external device, for example, in the USB port 103 as shown in FIG. In addition, the waveform can be displayed on the personal computer 200.

  Although the display waveform data is supplied from the display device 100, the waveform display program executed in the present invention is installed in the hard disk device 201 of the personal computer 200 from an information recording medium such as a compact disc, and the subsequent control is performed in the personal computer 200. This is done by the control unit. Further, operations necessary for display are performed by the keyboard 202 of the personal computer 200 or a mouse (not shown).

  Next, a configuration example of the display screen will be described with reference to FIG. Since this screen configuration is the same for both the display unit 160 of the display device 100 and the display 203 of the personal computer 200, the case of the display 203 of the personal computer 200 will be described as an example here.

  The display screen 210 of the display 203 is provided with a waveform display unit 211 that displays the signal waveform of the signal under measurement and a scroll bar display unit that displays a scroll bar 212 as a basic configuration.

  In this example, the scroll bar 212 is displayed elongated along the time axis direction on the lower side of the waveform display unit 211, and the length represents the length of all data (total data) stored in the storage memory 130.

  In order to make it easy to grasp the waveform data, a total data number display unit 213 that indicates the total number of data stored in the storage memory 130 is provided at the center of the lower side of the scroll bar 212, and the waveform display unit 211 On both sides, there are provided end data position display portions 214 and 215 that respectively indicate numerical values of the left end data position and the right end data position of the currently displayed signal waveform.

  A knob mark, which will be described later, is displayed in the scroll bar 212 to indicate the display range of the signal waveform. The knob mark can be moved in the time axis direction by a mouse operation. A moving button 216d is provided, and an up (forward) moving button 216u is provided at the right end.

  Note that the total data number display section 213, the end data position display sections 214 and 215, and the movement buttons 216d and 216u are preferably provided at the positions shown in FIG. The position may be changed as appropriate.

  The display screen 210 is provided with a display range designation unit 220, a screen number setting unit 230, a measurement start button 241 and a measurement stop button 242 as operation units on the screen operated by the mouse.

  The display range designating unit 220 is a part that designates a predetermined display range among all data stored in the storage memory 130. In the present invention, the display designated designating unit 220 includes a plurality of display designated sites (two in this example). Therefore, the display range specifying unit 220 includes two display range specifying units, a first display range specifying unit 221 and a second display range specifying unit 222. In the description of this embodiment, the display range designation portion is sometimes referred to as a “knob”.

  Display magnification setting sections 221a and 222a are attached to the first knob 221 and the second knob 222, respectively. With the display magnification setting units 221a and 222a, the signal waveform in the display range designated by the knobs 221 and 222 can be displayed on the waveform display unit 211 at an arbitrary magnification.

  The screen number setting unit 230 is used to divide the display area in the waveform display unit 211. If the screen number setting unit 230 is set to “1”, it is one screen, but if it is set to “2”, the waveform display unit 211 is divided into two screens as described later.

  Next, transition of the display screen from the start to the end of waveform data acquisition will be described with reference to FIGS.

  In this embodiment, since the first and second knobs 221 and 222 are provided, the scroll bar 212 includes first and second knobs corresponding to each of them as shown in FIG. 3f, for example. Knob marks NB1 and NB2 appear. The knob and knob mark which are clicked (selected) by the mouse are highlighted (highlighted) or displayed in a specific color, and this state is called active. The knob mark may be called a scroll mark or a bar mark. In addition, when it is not necessary to distinguish the two knob marks NB1 and NB2, NB is used as a general reference symbol.

  FIG. 3A shows an initial screen before waveform data is acquired. Nothing is displayed on the waveform display section 211, and the knob mark NB in the scroll bar 212 is also displayed in a full scale state up to the left and right of the scroll bar 212.

  In this example, since the first knob 221 is active, the knob mark NB appearing on the scroll bar 212 is the first knob mark NB1, and the second knob mark NB2 is hidden behind it. In this example, the number of data that can be displayed on the waveform display unit 211 is 1000.

  As shown in FIG. 3B, when the measurement start button 241 is clicked with the mouse, waveform data acquisition starts, and the signal waveform W of the signal under measurement is displayed on the waveform display unit 211 as the acquisition progresses.

  FIG. 3b shows a state in which 500 pieces of waveform data have been acquired. Until the signal waveform W reaches the right end of the waveform display section 211, that is, until the number of acquired data reaches 1000, the scroll bar 212 is in the initial state of FIG. The state remains.

  FIG. 3 c shows a state in which data acquisition has progressed and the number of data reaches 2000, which is twice the number of data that can be displayed on the waveform display unit 211. The left and right length A of the scroll bar 212 at this time corresponds to the number of data captured so far (2000), and the length B of the first knob mark NB1 is the number of currently displayed data (1000). ).

  Since the latest signal waveform W is always displayed during data acquisition, the right end of the scroll bar 212 is displayed together with the first knob mark NB1 and the second knob mark NB2 hidden behind it when the number of acquired data exceeds 1000. It will stick to the side.

  FIG. 3d shows a state when the data acquisition is completed by clicking the measurement stop button 242 with the mouse when the number of acquired data reaches 5000, which is five times the number of data that can be displayed on the waveform display unit 211. Yes. The length of the first knob mark NB1 is 1/5 of the entire length of the scroll bar 212.

  After the data has been captured, as shown in FIG. 3e, the mouse pointer is moved to the first knob mark NB1 and moved to the left end side of the scroll bar 212. As shown in FIG. A signal waveform Wa corresponding to the position of the first knob mark NB1 (range of 500 to 1500 in this example) is displayed, and the second knob mark NB2 that has been hidden behind the first knob mark NB1 so far is the scroll bar 212. Appear.

  In this way, by moving the activated first knob mark NB1, the signal waveform W of the desired portion is displayed on the waveform display unit 211. As shown in FIG. When the two-knob mark NB2 (or the second knob 222) is clicked, as shown in FIG. 4b, the second knob mark NB2 becomes active, and a signal waveform corresponding to the position of the second knob mark NB2 (in this example, a range of 4000 to 5000). Wb is displayed.

  As described above, according to the present invention, by activating either the first knob mark NB1 or the second knob mark NB2, the signal waveform Wa by the first knob mark NB1 and the signal waveform Wb by the second knob mark NB2 are instantaneously generated. Can be switched.

  Next, the movement of the knob mark NB will be described with reference to FIGS. 5a and 5b. As shown in FIG. 5a, a knob mark NB that is basically activated (in this example, the first move button 216d or the up (forward) move button 216u) is clicked with the mouse. Only the 2 knob mark NB2) moves in the time axis direction.

  The active knob mark NB can be freely moved in the scroll bar 212. For example, when the first knob mark NB1 is inactive and positioned at the center portion of the scroll bar 212, and the second knob mark NB2 is active and positioned at the right end side of the scroll bar 212, the second knob mark NB2 is set as the first knob mark NB1. Can be moved to the left end side position of the scroll bar 212.

  Further, the second knob mark NB2 can be moved so that part or all of the second knob mark NB2 overlaps the first knob mark NB1. The knob mark NB can be moved by dragging the mouse without using the movement buttons 216d and 216u.

  FIG. 5b shows an example in which the knob marks NB1 and NB2 are simultaneously moved in conjunction with each other. In this case, a simultaneous movement instruction unit 250 is provided in the operation unit on the screen operated by the mouse of the display screen 210.

  When any one of the movement buttons 216d and 216u is clicked with the simultaneous movement instruction unit 250 turned on by, for example, a mouse operation, the two knob marks NB1 and NB2 simultaneously move in the same direction and the same distance. The simultaneous movement instruction unit 250 is useful when comparing signal waveforms separated by a certain time interval.

  Next, a change in the display magnification of the signal waveform will be described with reference to FIGS. 6a to 6c. FIG. 6 a shows a state where the display magnification is “× 1” for each of the knobs 221 and 222. By operating the display magnification setting units 221 a and 222 a attached to the knobs 221 and 222, the waveform is displayed. The display magnification of the signal waveform W displayed on the display unit 211 can be changed.

  For example, in order to change the display magnification of the second knob 222, the second knob 222 is activated and then the count arrow of the display magnification setting unit 222a is clicked. As shown in FIG. For example, the display magnification of 222 is “× ½”.

  Thereby, instead of the signal waveform W in the range of 4000 to 5000 that has been displayed as the display magnification “× 1” on the waveform display unit 211 until then, the signal waveform Wc in the range of 3000 to 5000 is compressed and displayed. Further, the length of the second knob mark NB2 also becomes longer corresponding to the range of 3000 to 5000.

  When the count magnification of the display magnification setting unit 222a is clicked and the display magnification of the second knob 222 is, for example, “× 2” as shown in FIG. 6C, a signal in the range of 4500 to 5000 is displayed on the waveform display unit 211. The waveform WD is enlarged and displayed, and the length of the second knob mark NB2 is shortened corresponding to the range of 4500 to 5000.

  Next, a change in the number of display screens will be described with reference to FIGS. 7a to 7c. In the above embodiment, the waveform display unit 212 has one screen. However, according to the present invention, the number of screens of the waveform display unit 212 can be prepared by the number of knob marks NB displayed on the scroll bar 212.

  To do this, as shown in FIG. 7A, the count arrow of the display screen number setting unit 230 is clicked and the count value is set to “2”. Thereby, as shown in FIG. 7b, the waveform display unit 211 is divided and two screens 211a and 211b appear.

  In this case, the left screen 211a is a waveform display section for the first knob mark NB1 on the left side displayed on the scroll bar 212, and the right screen 211b is a waveform display section for the second knob mark NB2, and The signal waveform Wa designated by the 1 knob mark NB1 and the signal waveform Wb designated by the second knob mark NB2 are displayed.

  In addition, the left end data position and the right end data position of the currently displayed signal waveforms Wa, Wb are displayed on both sides of the screens 211a, 211b. Thus, in this example, it can be seen that the signal waveform Wa on one screen 211a is a waveform in the range of 500 to 1000, and the signal waveform Wb on the other screen 211b is a waveform in the range of 4000 to 5000.

  In this way, by setting the waveform display unit 211 to the two screens 211a and 211b, it is possible to intuitively grasp the positional relationship between the signal waveforms Wa and Wb simply by looking at the knob marks NB1 and NB2 in the scroll bar 212. Is possible.

  Note that it is preferable that the currently active display screen can be easily recognized as being active, for example, by displaying a display frame in a highlighted or bold line.

  Moreover, as shown in FIG. 7c, the display magnification of each waveform display part 211a, 211b can also be changed. In FIG. 7c, the first knob 221 side is set to the magnification “× 2”, the second knob 222 side is set to the magnification “× 1/2”, the enlarged waveform Wd is displayed on one screen 211a, and the other The screen 211b shows a state in which the compressed waveform Wc is displayed.

  As described above, either the first knob 221 or the second knob 222 is activated by clicking the knob mark NB in the part of the knob or the scroll bar 212. When the unit 211 has a plurality of screens, in this example, two screens 211a and 211b, it can also be activated by directly clicking the screen.

  As an example, as shown in FIG. 8a, when the screen 211b on the second knob 222 side is active and the screen 211a on the inactive first knob 221 side is clicked, as shown in FIG. The screen 211a on the first knob 221 side becomes active, and the screen 211b on the second knob 222 side becomes inactive.

  Each of the above embodiments relates to the display of a recorded waveform. However, the present invention is such that, for example, a plurality of data items are displayed in m rows × n columns (m, n is an arbitrary integer) displayed in a data display portion, and the present invention can also be applied to a case where predetermined data is selected from the data display portion and displayed. Another embodiment will be described with reference to FIG.

  The data display unit 260 shown in FIG. 9 is displayed, for example, on the waveform display unit 211 in the display screen 210 in the above embodiment. Other configurations of the display screen 210 may be the same as those in FIG. That is, also in this other embodiment, at least the first and second knobs 221, 222 and the scroll bar 212 are provided, and two knob marks NB1, NB2 are displayed in the scroll bar 212.

  In the example of FIG. 9, the data display unit 260 is in a table format of 12 rows × 3 columns, but the uppermost row is an item description column, and the lowermost row is, for example, a data aggregation column. The area is 10 rows × 3 columns.

  On the other hand, for example, all data is stored in a storage unit (not shown) as 50 rows × 3 columns, and therefore, 1/5 of all data is displayed on the data display unit 260. .

  In this example, the scroll bar 212 is arranged on the side of the data display unit 260 as a vertical scroll bar along the column direction so that a desired range of data can be quickly displayed. In this case, the length A of the vertical scroll bar 212 is 50 lines.

  In the vertical scroll bar 212, the knob mark NB1 of the first knob 221 and the knob mark NB2 of the second knob 222 are displayed. In this example, the length B of each knob mark NB1, NB2 is 10 lines.

  Each knob mark NB can be moved by clicking one of the up movement button 216u and the down movement button 216d, or by dragging the mouse, as in the above embodiment.

  In FIG. 9, the knob mark NB1 side is active, and the range from the 1st to 10th lines is displayed on the data display section 260. By making the knob mark NB2 side active, for example, 31-40 The range up to the line is displayed.

  Thus, by displaying a plurality of knob marks in the scroll bar and clicking one of them, the display range can be switched without moving the knob marks one by one. That is, the knob mark can be handled as a bookmark.

  Further, in addition to the vertical scroll bar 212, a horizontal scroll bar (not shown) is arranged along the row direction, for example, below the data display unit 260, and at least one knob mark is displayed in the horizontal scroll bar. May be.

  According to this, it is possible to quickly display the data in the range of the intersection part of the knob marks that are activated in the vertical scroll bar 212 and the horizontal scroll bar on the data display unit 260.

  As mentioned above, although each embodiment of the present invention was described, the present invention is not limited to this. In the above embodiment, waveform display and data display are performed on the display 203 of the personal computer 200 as an external device, but it is needless to say that the display unit 160 provided in the display device 100 may display the waveform.

  In the above embodiment, various operations are performed exclusively with the mouse of the personal computer 200, but the keyboard 202 of the personal computer 200 or the operation unit 140 of the display device 100 may be used.

The schematic diagram which shows the structure of the display apparatus which displays a recording waveform by this invention. The schematic diagram which shows the basic composition of a display screen. The schematic diagram which shows the initial screen at the time of starting. The schematic diagram which shows the screen state at the time of acquisition of waveform data. The schematic diagram which shows the screen state in taking in waveform data. The schematic diagram which shows the screen state at the time of completion | finish of acquisition of waveform data. Explanatory drawing which shows the screen state at the time of moving a knob mark. The schematic diagram which shows the screen state after the movement of a knob mark. The operation explanatory view which makes any one of the knob marks active. The operation explanatory view which makes any one of the knob marks active. The operation explanatory view which moves a knob mark. Explanatory drawing of operation which moves two knob marks simultaneously. Explanatory drawing for changing the display magnification. The schematic diagram which shows the screen state as which the compressed signal waveform was displayed. The schematic diagram which shows the screen state as which the expanded signal waveform was displayed. Explanatory drawing for changing the number of display screens. The schematic diagram which shows the screen state by which the waveform display part was divided into two. The schematic diagram which shows the screen state by which the waveform display part was divided into 2 and the compression waveform and the expansion waveform were displayed on each screen. Explanatory drawing of operation which makes any one screen active when a waveform display part is divided into two. Operation explanatory drawing which makes the other screen active when a waveform display part is divided into two. The schematic diagram which shows another embodiment of this invention. The schematic diagram which shows the conventional display screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Display apparatus 110 A / D converter 120 Memory control part 130 Sledge memory 140 Operation part 150 Main control part 160 Display part 200 Personal computer 210 Display screen 211 Waveform display part 212 Scroll bar 213 Total data number display part 214,215 End part Data position display part 216d, 216u Move button 220 Display range designation part (knob)
221 First knob 222 Second knob 221a, 222a Display magnification setting section 230 Display screen number setting section 241 Measurement start button 242 Measurement stop button 250 Simultaneous movement button NB Knob mark

Claims (10)

Input analog data is converted into digital data and stored in the storage unit, then the digital data is read from the storage unit and applied to the display unit, and the signal waveform of the analog data is reproduced on the display screen of the display unit In the display method of the recorded waveform to be displayed,
An operation unit including a plurality of display range designating units for designating a predetermined display range among all data stored in the storage unit, and along the waveform display unit on which the signal waveform is displayed on the display screen Display a scroll bar having a length corresponding to the total data length stored in the storage unit, and simultaneously display a knob mark corresponding to each display range designating unit in the scroll bar. One of the knob marks selected by the above is activated and can be moved in a predetermined direction within the scroll bar, and data within a display range corresponding to the position of the knob mark is displayed on the waveform display section. Display method. An input unit having an A / D conversion function for converting input analog data into digital data, a storage unit for storing the digital data output from the input unit, a display unit having a display screen, and a predetermined instruction An operation unit for inputting items, and writing and reading of data to and from the storage unit based on instructions of the operation unit are controlled, and data read from the storage unit is given to the display unit and the display screen displays the data In a recording waveform display apparatus including control means for reproducing and displaying a signal waveform of analog data,
The display screen includes a waveform display unit that displays at least the signal waveform and a scroll bar display unit that displays a scroll bar having a length corresponding to the total data length stored in the storage unit. And
The operation unit includes a plurality of display range designating units for designating a predetermined display range among all data stored in the storage unit,
The control means simultaneously displays a knob mark corresponding to each display range designation section in the scroll bar, and activates a specific knob mark in a predetermined direction in the scroll bar based on an instruction from the operation section. A recording waveform display device characterized in that it is movable, reads data within a display range corresponding to the position of the specific knob mark from the storage unit, and displays the signal waveform on the waveform display unit.   3. The recording waveform display device according to claim 2, wherein each display range designation section includes a display magnification setting section.   The control means displays the total number of data stored in the storage unit and the data positions of the left end and the right end of the signal waveform displayed on the waveform display unit at a predetermined portion of the display screen. 4. The recording waveform display device according to claim 2, wherein the recording waveform is displayed.   A movement button for moving the knob mark in the time axis direction is displayed at both ends of the scroll bar, and the control means moves the specific knob mark to the scroll bar based on a movement command input from the movement button. 5. The recording waveform display device according to claim 2, wherein the recording waveform display device is moved in a predetermined direction.   The operation section is provided with a simultaneous movement instruction section for the knob marks, and the control means simultaneously moves the plurality of knob marks in the same direction and the same distance when the simultaneous movement instruction section is set to ON. 6. The recording waveform display device according to claim 2, wherein the recording waveform display device is a recording waveform display device.   The operation unit is provided with a screen number setting unit that displays a plurality of the waveform display units corresponding to the knob marks, and the control means has the number of the screens set by the screen number setting unit. 7. A waveform display section is prepared in the display screen, and a signal waveform within a display range corresponding to the position of each knob mark is displayed on each of the waveform display sections. 2. A recording waveform display device according to item 1.   8. The recording waveform display device according to claim 7, wherein the knob mark and / or the waveform display unit activated by the operation unit is displayed in a display mode different from an inactive display mode. A part of all data stored in the storage unit is displayed on a data display unit having a matrix of m rows × n columns (m and n are arbitrary integers) set on the display screen. In the data selective display method of selecting a predetermined range of data from all the data and displaying it on the data display unit,
The scroll bar is displayed over the entire length of at least one of the data display unit in the row direction or the column direction, and a plurality of knob marks specifying the display range are simultaneously displayed in the scroll bar. A method for selectively displaying data, characterized in that the display content of the display unit is switched.   The scroll bar including the plurality of knob marks is displayed along each of the row direction and the column direction of the data display unit, and a knob mark selected from the row direction scroll bar and the column direction scroll bar is displayed. 10. The data selective display method according to claim 9, wherein the data of the intersection part is displayed on the data display unit.

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