Electronic device, terminal status display method, and program

Abstract

The goal is to allow users to easily see the location of ports and whether or not they are plugged in, without requiring a large display. [Solution] The electronic device 100 is an electronic device 100 having a plurality of terminals on at least one of its bottom and back surfaces, and is provided with a display unit 140 on the front or top surface of the electronic device 100, which consists of a light-emitting element for indicating the position of each of the plurality of terminals in the left-right direction of the electronic device 100.

Description

Technical Field

[0002]

[0001] The present invention relates to an electronic device, a terminal state display method, and a program.

Background Art

[0002] There are electronic devices equipped with numerous external connection terminals, such as electronic devices with rich functions and high expandability. In such electronic devices, it is often cumbersome to confirm whether a cable is correctly connected to a terminal. To address such problems, for example, Patent Document 1 discloses an image display device that enables a user to easily grasp which input terminal a signal is input from and which input terminal the signal has been disconnected from among a plurality of input terminals.

Prior Art Documents

Patent Documents

[0006] To achieve the above objective, one embodiment of the electronic device according to the present invention is: An electronic device having multiple terminals on at least one of its bottom and rear surfaces, The electronic device is provided with a display unit on its front or top surface, which consists of a light-emitting element for indicating the position of each of the plurality of terminals in the left-right direction of the electronic device. [Effects of the Invention]

[0007] According to the present invention, users can easily determine the location of terminals and whether or not they are plugged in, without requiring a large display. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows the external appearance of the electronic device according to the embodiment when viewed from a diagonal front angle. [Figure 2] This is a diagram illustrating the positions of terminals arranged in an electronic device according to an embodiment. [Figure 3] This is a block diagram showing the functional configuration of an electronic device according to an embodiment. [Figure 4] This figure shows an example of a keyboard selection function of an electronic device according to an embodiment. [Figure 5] This figure shows an example of a display unit for an electronic device according to an embodiment. [Figure 6] This is the first part of the flowchart for the terminal status display process according to the embodiment. [Figure 7] This is the second part of the flowchart for the terminal status display process according to the embodiment. [Figure 8] This figure shows an example of a display unit in an electronic device equipped with a light navigation function. [Figure 9] This figure shows an example of an electronic device that has terminals on both the bottom and the back. [Figure 10] This figure shows an example of a display unit for an electronic device that has terminals on both the bottom and the back. [Figure 11]This figure shows an example of an electronic device equipped with a display unit on its top surface. [Figure 12] This figure shows an example of an electronic device that has terminals on both the bottom and back and a display unit on the top. [Modes for carrying out the invention]

[0009] The projection control device and the like according to the embodiment will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. As shown in Figure 1, the electronic device 100 according to this embodiment is an electronic musical instrument comprising a display unit 140 in which multiple light-emitting elements are arranged and a keyboard 131. As shown in Figures 1 and 2, the electronic device 100 is provided with various connection terminals (headphone 0 terminal 151, headphone 1 terminal 152, MIDI IN terminal 153, MIDI OUT terminal 154, LINE IN L terminal 155, LINE IN R terminal 156, LINE OUT L / MONO terminal 157, LINE OUT R terminal 158, USB terminal 159, pedal terminal 160) on the bottom surface on the underside of the keyboard 131. Since these various connection terminals are located on the bottom surface of the back of the keyboard 131, users cannot see these terminals from the front of the electronic device 100. Conventionally, when connecting cables or other devices to the terminals, it was necessary to look at the bottom surface to find the location of the terminals. In the electronic device 100, the location of the various connection terminals is displayed on the shelf board 220 by the display unit 140, allowing users to more easily confirm the location of the terminals and make connections than before.

[0010] As shown in Figure 3, the electronic device 100 includes a control unit 110, a storage unit 120, an operation input unit 130, a display unit 140, and a terminal unit 150 in its functional configuration. The control unit 110 is composed of a processor, such as a CPU (Central Processing Unit). The control unit 110 executes the terminal status display process, etc., described later, by executing the program stored in the memory unit 120. The control unit 110 supports multithreading and can execute multiple processes in parallel. The control unit 110 also has a timer function and can measure time. The storage unit 120 stores programs executed by the control unit 110 and necessary data. The storage unit 120 may include, but is not limited to, RAM (Random Access Memory), ROM (Read Only Memory), flash memory, etc.

[0011] The operation input unit 130 is equipped with a user interface including a keyboard 131 and push-button switches, and accepts operation input from the user. Among the push-button switches provided by the operation input unit 130 is a physical key (keyboard select switch) for executing a function generally called keyboard select. Keyboard select is a function in which a predetermined process is executed by pressing any key on the keyboard 131 while pressing a specific physical key other than the keyboard 131 (for example, the keyboard select switch). For example, pressing the keyboard select switch while pressing the key with note name A0 on the keyboard 131 (the key that produces the lowest note) will perform a factory reset, which resets the settings of the electronic device 100 to the factory default settings. In the terminal position guide function realized by the terminal status display process described later, as shown in Figure 4, the user specifies which terminal to insert into by pressing any key on the keyboard 131 from note name C5 to note name A5 while pressing the keyboard select switch. In other words, by pressing the keyboard select switch while simultaneously pressing the key corresponding to the terminal position guide function, the keyboard 131 selects the terminal for which the light-emitting element of the display unit 140 guides insertion into the terminal unit 150.

[0012] The display unit 140 includes a plurality of light-emitting elements such as LEDs (Light Emitting Diodes), and displays the position, state (not inserted, waiting for insertion, inserted, etc.) of the terminals of the electronic device 100. In the electronic device 100, as shown in FIG. 5, the plurality of light-emitting elements (light-emitting elements 201, 202, …, 210) included in the display unit 140 are arranged on the shelf board 220 on the front surface of the electronic device 100. The terminal unit 150 includes terminals for connecting an external device or the like to the electronic device 100. Specifically, as shown in FIG. 2, the electronic device 100 includes, as the terminal unit 150, a headphone 0 terminal 151, a headphone 1 terminal 152, a MIDI IN terminal 153, a MIDI OUT terminal 154, a LINE IN L terminal 155, a LINE IN R terminal 156, a LINE OUT L / MONO terminal 157, a LINE OUT R terminal 158, a USB terminal 159, and a pedal terminal 160 on the bottom surface of the electronic device 100.

[0013] Each light-emitting element included in the display unit 140 and each terminal included in the terminal unit 150 correspond to each other, and each light-emitting element indicates the position, state, etc. of the corresponding terminal. Specifically, the headphone 0 terminal 151 shown in FIG. 2 corresponds to the light-emitting element 201 shown in FIG. 5, the headphone 1 terminal 152 corresponds to the light-emitting element 202, the MIDI IN terminal 153 corresponds to the light-emitting element 203, the MIDI OUT terminal 154 corresponds to the light-emitting element 204, the LINE IN L terminal 155 corresponds to the light-emitting element 205, the LINE IN R terminal 156 corresponds to the light-emitting element 206, the LINE OUT L / MONO terminal 157 corresponds to the light-emitting element 207, the LINE OUT R terminal 158 corresponds to the light-emitting element 208, the USB terminal 159 corresponds to the light-emitting element 209, and the pedal terminal 160 corresponds to the light-emitting element 210.

[0014] Moreover, the horizontal positions of the light-emitting elements indicate the horizontal positions of the corresponding terminals. Therefore, when the user wishes to insert, for example, the cable of a pedal into the pedal terminal 160, by groping from the front to the back along the bottom surface at the position of the light-emitting element 210 corresponding to the pedal terminal 160, the user can find the pedal terminal 160 by the sense of touch only without having to visually search. The same applies to other terminals. However, there may be a plurality of terminals at the same horizontal position, such as the headphone 0 terminal 151 and the headphone 1 terminal 152. In this case, the positions of the respective terminals in the depth direction are represented by the vertical direction of the light-emitting elements as viewed from the front of the electronic device 100. In FIG. 5, an example is shown where the higher the vertical direction of the light-emitting elements as viewed from the front of the electronic device 100, the closer the position of the terminal in the depth direction is to the front, but this may be reversed (the lower the light-emitting element, the closer the position of the terminal in the depth direction is to the front). Also, in FIG. 5, the light-emitting elements are arranged in at most two vertical rows (in the case of the light-emitting element 201 and the light-emitting element 202), but when there are three or more terminals at the same horizontal position, the corresponding light-emitting elements are arranged in three or more vertical rows. Further, even when there is only one terminal at the same horizontal position, the vertical position of the light-emitting element may be changed according to the position of the terminal in the depth direction. For example, if the terminal is at the deepest position, the corresponding light-emitting element is arranged at the bottom of the front surface, and if the terminal is at the frontmost position, the corresponding light-emitting element is arranged at the top of the front surface, and so on.

[0015] Furthermore, the shape of the light-emitting element (the shape of the light-emitting part) may also indicate the shape of the terminal and the direction in which it is inserted. For example, the shape of the light-emitting element 209 shown in Figure 5 (a left-pointing triangle) indicates that the corresponding terminal, the USB terminal 159, is inserted from right to left. The shape of the other light-emitting elements (circles) indicates that the corresponding terminal is inserted from bottom to top. Note that the shapes of the light-emitting elements shown in Figure 5 are merely examples. For example, the shape of the light-emitting elements other than light-emitting element 209 (using triangles similar to the shape of light-emitting element 209) could be made an upward-pointing triangle to clearly indicate that the corresponding terminal is inserted from bottom to top. In addition, the type of terminal (stereo jack, MIDI, USB, etc.) may be indicated by the shape of the light-emitting element, the color of the light emission, etc.

[0016] The functional configuration of the electronic device 100 has been described above. Next, the terminal status display process will be described with reference to Figures 6 and 7. When the power to the electronic device 100 is turned on, the control unit 110 performs necessary initial setup processing and then starts executing the terminal status display process in parallel with other necessary processes, and continues to execute until the power to the electronic device 100 is turned off.

[0017] First, the control unit 110 initializes the terminal status variables (step S101). A terminal status variable is a variable for storing the state of each terminal, and is an array variable with the same number of elements as the number of terminals of the electronic device 100 (10 in this embodiment). Here, each terminal of the electronic device 100 is assigned a number, with headphone terminal 0 151 being terminal 1, headphone terminal 1 152 being terminal 2, ..., pedal terminal 160 being terminal 10, and the state of terminal i is stored in terminal status variable [i]. Each terminal status variable can take on one of three values: "not inserted", "waiting to be inserted", or "inserted". In step S101, the control unit 110 initializes all terminal status variables to "not inserted" as a general rule. However, considering the case where a cable is left plugged into a terminal, the control unit 110 may check the insertion status of all terminals in step S101 and initialize the value of the terminal status variable corresponding to each terminal to "not inserted" or "inserted" according to the insertion status of each terminal.

[0018] Next, the control unit 110 determines whether the keyboard select switch is pressed or not (step S102). If the keyboard select switch is not pressed (step S102; No), the process proceeds to step S108. If the keyboard select switch is pressed (step S102; Yes), the control unit 110 lights up the light-emitting elements according to the value of the terminal status variable (step S103). Specifically, the control unit 110 checks the value of the terminal status variable for all terminals, and if it is "not inserted", it lights up the corresponding light-emitting element in yellow; if it is "inserted", it lights up the corresponding light-emitting element in blue; and if it is "waiting to be inserted", it blinks the corresponding light-emitting element in red. Then, the control unit 110 determines whether it has received input from a key corresponding to the terminal position guide function of the keyboard 131 (i.e., any key from note name C5 to note name A5) (step S104). The key corresponding to the terminal position guide function indicates which terminal the user is trying to connect to, so if the key corresponding to the terminal position guide function is received, it means that information about the terminal the user is trying to connect to (connection terminal information) has been obtained. If the control unit 110 cannot obtain input for the terminal position guide function key (step S104; No), it proceeds to step S108.

[0019] If the control unit 110 receives input for a key of the terminal position guide function (step S104; Yes), it determines whether the value of the terminal state variable corresponding to that key is "not inserted" (step S105). If the value of the terminal status variable corresponding to that key is "not inserted" (step S105; Yes), the control unit 110 sets the value of the terminal status variable corresponding to that key to "waiting for insertion" (step S106) and proceeds to step S108. If the value of the terminal state variable corresponding to that key is not "not inserted" (step S105; No), the control unit 110 cancels "waiting for insertion" and returns the terminal state variable to its original state (i.e., "not inserted") if the value of the terminal state variable corresponding to that key is "waiting for insertion", as this would mean the same key has been pressed again (step S107), and proceeds to step S108.

[0020] In step S108, the control unit 110 determines whether or not any operation has occurred within a certain period of time after the light-emitting element has been turned on. This determination is made to turn off the light-emitting element if no operation has occurred for a certain period of time or longer. If no operation is performed within a certain period of time (no operation for a certain period of time or longer) (Step S108; No), the control unit 110 turns off all the light-emitting elements of the display unit 140 (Step S109) and returns to Step S102. If any operation is performed within a certain period of time (Step S108; Yes), proceed to Step S111 shown in Figure 7.

[0021] In step S111, the control unit 110 initializes the value of variable i, which specifies the index of the array of terminal state variables, to 1. Then, the control unit 110 determines whether the value of variable i is greater than the number of terminals (i.e., whether it has been repeated the number of times equal to the number of terminals) (step S112). If the value of variable i is greater than the number of terminals (step S112; Yes), return to step S102 shown in Figure 6. If the value of variable i is less than or equal to the number of terminals (step S112; No), the control unit 110 determines whether or not terminal i has already been inserted (step S113). If terminal i is already inserted (step S113; Yes), the control unit 110 lights up the light-emitting element corresponding to terminal i on the display unit 140 in blue (step S114). Then, it sets the value of the terminal state variable corresponding to terminal i (i.e., terminal state variable [i]) to "inserted" (step S115) and proceeds to step S120.

[0022] If terminal i is not inserted (step S113; No), the control unit 110 determines whether the value of the terminal state variable corresponding to terminal i (i.e., terminal state variable [i]) is "waiting for insertion" (step S116). If the value of terminal status variable [i] is "waiting for insertion" (step S116; Yes), the control unit 110 flashes the light-emitting element corresponding to terminal i of the display unit 140 in red (step S117), and proceeds to step S120. If the value of terminal status variable [i] is not "waiting for insertion" (step S116; No), the control unit 110 lights up the light-emitting element corresponding to terminal i of the display unit 140 in yellow (step S118). Then the control unit 110 changes the value of the terminal status variable corresponding to terminal i (i.e., terminal status variable [i]) to "not inserted" (step S119) and proceeds to step S120. In step S120, the control unit 110 increments the value of variable i by 1 and returns to step S112.

[0023] Through the terminal status display process described above, the control unit 110 obtains information (connection terminal information) from the keyboard 131 on the operation input unit 130 indicating which terminal the user is trying to connect to using the keyboard select function. Based on this information, the control unit 110 controls the illumination state of the display unit 140, monitors insertion into each terminal on the terminal unit 150, and changes the illumination state of the light-emitting element when insertion into a terminal is confirmed. Furthermore, as described above, each light-emitting element on the display unit 140 is positioned according to the lateral position of the terminal. Therefore, since the electronic device 100 can display the position and status of the terminals on the display unit 140, the user can easily understand the position of the terminals of the electronic device 100 and whether or not cables are inserted into the terminals.

[0024] The display unit 140 of the electronic device 100 described above was located on the shelf 220 in front of the keyboard 131, but this is only one example of a display unit 140. Some electronic devices, such as light-guided keyboards, have a function that uses light to guide the player to the key to play (hereinafter referred to as "light-guided function"). Since the electronic device 101 with such a light-guided function has a light-emitting element inside each key of the keyboard 131 that illuminates the key, as shown in Figure 8, the light-emitting element located on the key closest to the left or right position of the terminal can be used as the display unit 140. Although the terminals of the electronic device 101 are not shown in Figure 8, it is assumed that the terminals are located in the same positions as those of the electronic device 100 shown in Figure 2. In electronic musical instruments with a light navigation function, such as electronic device 101, the light-emitting element used for the light navigation function can also be used as the display unit 140. Therefore, there is no need to prepare a separate light-emitting element for the display unit 140, which can reduce costs. On the other hand, since the position of the light-emitting elements depends on the position of each key on the keyboard 131, it may be difficult to precisely align them with the left and right positions of the terminals. In particular, terminals located to the left of the keyboard 131 must correspond to the leftmost key on the keyboard 131, as shown by light-emitting elements 201 and 202 in Figure 8, and terminals located to the right of the keyboard 131 must correspond to the rightmost key on the keyboard 131, as shown by light-emitting element 210 in Figure 8. However, this problem can also be solved by arranging the terminals in positions that match the position of each key. Also, if it is necessary to place terminals to the left or right of the keyboard 131, a separate light-emitting element may be provided for such terminals.

[0025] In the example shown in Figure 8, the headphone 0 terminal 151 and headphone 1 terminal 152 are in the same position in the left-right direction of the electronic device 101. However, in the depth direction, as shown in Figure 2, the headphone 1 terminal 152 is located further back. Therefore, by associating the headphone 1 terminal 152 with the light-emitting element 202 (a light-emitting element provided on the black key of note B♭0 (the second key from the left)), the position where it emits light is set to be further back than the light-emitting element 201 corresponding to the headphone 0 terminal 151. In this example, it would also be possible to provide multiple light-emitting elements with different positions in the depth direction on the white key of note A0 (the leftmost key). However, as shown in Figure 8, if a slight difference in left-right position (only the difference between the positions of the white and black keys) is acceptable, the position in the depth direction can be distinguished by using only the black key with the light-emitting elements necessary for the light navigation function. In other words, the electronic device 101 can express the difference in the position of the light-emitting elements in the depth direction by using white keys and black keys.

[0026] Since the terminals of the aforementioned electronic device 100 are located on the bottom surface and not on the back surface, the vertical position of the light-emitting element can be made to correspond to the depth position of the terminals. That is, the display unit 140 indicates the position of each terminal in the depth direction on the bottom surface of the electronic device 100 with the vertical position of the light-emitting element on the front surface of the electronic device 100. Conversely, in the case of electronic devices where the terminals are located on the back and not on the bottom, the vertical position of the light-emitting element can be made to correspond to the vertical position of the terminals. That is, in this case, the display unit 140 indicates the vertical position of each terminal on the back of the electronic device using the vertical position of the light-emitting element on the front of the electronic device.

[0027] Furthermore, as shown in Figure 9, when terminals are present on both the back and bottom of the electronic device 102, the shelf board 220 can be divided into two upper and lower regions (upper 221 and lower 222), as shown in Figure 10. One region (upper 221 in the example of Figure 10) can correspond to the terminals on the bottom, and the other region (lower 222 in the example of Figure 10) can correspond to the terminals on the back. In other words, in this case, the display unit 140 indicates the positions of the terminals in the depth direction on the bottom of the electronic device 102 and the positions of the terminals in the vertical direction on the back by the positions of the light-emitting elements in the vertical direction on the front of the electronic device 102. Furthermore, in this example, as shown in Figure 9, terminal 161 on the back is positioned higher than terminal 162, so as shown in Figure 10, the light-emitting element 211 corresponding to terminal 161 is positioned higher than the light-emitting element 212 corresponding to terminal 162. However, it is important that the position of these light-emitting elements in the left-right direction matches the left-right position of the corresponding terminal; the vertical position can be the same (as with the light-emitting elements 203, ..., 210 positioned on the upper side 221). As long as the left-right positions match, the user can find the terminal to plug into by feeling around in the vertical direction (on the back) or the depth direction (on the bottom).

[0028] Furthermore, in the embodiments described above, the display unit 140 was described as being located on a shelf 220 on the front (front) of the electronic devices 100 and 102, or located within the keyboard 131 of the electronic device 101. However, the location of the display unit 140 is not limited to the front and the keyboard 131. For example, as shown in Figure 11, the display unit 140 may be provided on the top surface 230 of the electronic device 103. Although the terminals of the electronic device 103 are not shown in Figure 11, it is assumed that each terminal is located in the same position as the electronic device 100 shown in Figure 2. Since the terminals of the electronic device 103 are located on the bottom surface and not on the back surface, the position of the light-emitting element in the depth direction can be made to correspond to the position of the terminal in the depth direction. That is, in the electronic device 103, the display unit 140 indicates the position of each terminal in the depth direction of the bottom surface of the electronic device 103 with the position of the light-emitting element in the depth direction of the top surface of the electronic device 103. Conversely, in electronic devices where terminals are located on the back and not on the bottom, if the display unit 140 is placed on the top surface of the electronic device, the position of the light-emitting element in the depth direction can be made to correspond to the position of the terminals in the vertical direction. That is, in this case, the display unit 140 indicates the respective positions of the terminals in the vertical direction on the back of the electronic device with the positions of the light-emitting element in the depth direction on the top surface of the electronic device.

[0029] Furthermore, if terminals are present on both the back and bottom surfaces, and the display unit 140 is positioned on the top surface of the electronic device 104 as shown in Figure 12, the top surface 230 can be divided into two regions in the depth direction (far side 231 and front side 232), with one side (far side 231 in the example of Figure 12) corresponding to the terminals on the bottom surface and the other side (front side 232 in the example of Figure 12) corresponding to the terminals on the back surface. In other words, in this case, the display unit 140 indicates the positions of the terminals on the bottom surface of the electronic device 104 in the depth direction and the positions of the terminals on the back surface in the vertical direction by the positions of the light-emitting elements in the depth direction on the top surface of the electronic device 104. Note that although the terminals of the electronic device 104 are not shown in Figure 12, it is assumed that each terminal is positioned in the same location as the electronic device 102 shown in Figure 10. Alternatively, the display unit 140 may be placed on both the top and front surfaces of the electronic device. In this case, if the terminals located on the bottom surface are aligned with the light-emitting elements on the top surface, and the terminals located on the back surface are aligned with the light-emitting elements on the front surface, the depth position of the terminals on the bottom surface can be indicated by the depth position of the light-emitting elements on the top surface, and the vertical position of the terminals on the back surface can be indicated by the vertical position of the light-emitting elements on the front surface. This makes it possible to display the positions of the terminals in a more intuitive and easy-to-understand manner for the user.

[0030] Furthermore, in the above-described embodiment, the control unit 110 controlled the light-emitting element of the display unit 140 so that it would light up blue if the corresponding terminal was inserted, blink red if it was waiting to be inserted, and light up yellow if it was not inserted. However, these are merely examples of the lighting states of the display unit 140 controlled by the control unit 110. For example, the control unit 110 may control the light-emitting element to light up if it is inserted, blink if it is waiting to be inserted, and turn off if it is not inserted, regardless of the color of the light-emitting element. By controlling it in this way, the color of the light-emitting element can be used to notify other information. For example, instead of representing whether the terminal is on the bottom or the back by the position of the light-emitting element, it may be represented by the color of the light-emitting element when it is lit (for example, red for the bottom, blue for the back). Alternatively, the type of terminal may be represented by the color of the light-emitting element (for example, red for a stereo jack, blue for MIDI, green for USB).

[0031] In the above description, electronic devices 100, 101, 102, 103, and 104 were described as electronic musical instruments, but the electronic devices are not limited to electronic musical instruments and can be applied to any device that has terminals on at least one of its bottom or back surfaces. The method of selecting the terminal to connect is also not limited to keyboard selection. The electronic devices may be equipped with button switches corresponding to each terminal, or the button switches may be placed at the same positions as the light-emitting elements (i.e., the button switches may also be placed at positions corresponding to the left and right directions for each terminal, with the light-emitting elements placed on the surface of the button switches), or the name of the terminal to be connected may be input by voice. Furthermore, the electronic devices may be equipped with a character display means such as a liquid crystal display, and when the name of the terminal is displayed on the character display means and the user selects the name of the terminal using cursor keys (e.g., up and down buttons), the control unit 110 may determine that the terminal with the selected name is the terminal that the user is trying to insert.

[0032] Furthermore, in the above embodiment, it was described that the program for terminal status display processing and other processes executed by the control unit 110 is pre-stored in the storage unit 120. However, a computer capable of executing the above-mentioned processes may be configured by distributing the program on a non-temporary computer-readable recording medium such as a flexible disk, CD-ROM (Compact Disc Read Only Memory), DVD (Digital Versatile Disc), MO (Magneto-Optical disc), memory card, or USB memory, and then loading and installing the program into the computer.

[0033] Furthermore, the program can be superimposed on a carrier wave and applied via a communication medium such as the Internet. For example, the program could be posted and distributed on a bulletin board system (BBS) on a communication network. This program could then be launched and executed under the control of the operating system (OS), just like any other application program, to perform the aforementioned processes.

[0034] Furthermore, the control unit 110 may consist of any single processor, such as a single processor, multi-processor, or multi-core processor, or it may be configured by combining any of these processors with processing circuits such as an ASIC (Application Specific Integrated Circuit) or FPGA (Field-Programmable Gate Array).

[0035] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these specific embodiments, and the present invention includes the invention described in the claims and its equivalents. [Explanation of symbols]

[0036] 100...Electronic device, 110...Control unit, 120...Storage unit, 130...Operation input unit, 140...Display unit, 150...Terminal unit

Claims

1. An electronic device having multiple terminals on at least one of its bottom and rear surfaces, The electronic device is provided with a display unit on its front or top surface, which consists of a light-emitting element for indicating the position of each of the plurality of terminals in the left-right direction of the electronic device. electronic equipment.

2. The display unit includes light-emitting elements corresponding to the positions of the terminals in the left-right direction of the electronic device. The electronic device according to claim 1.

3. The aforementioned electronic device is a musical instrument that uses a keyboard equipped with multiple keys, The light-emitting element causes each of the keys to emit light. The electronic device according to claim 2.

4. The terminal that guides insertion with the light-emitting element is selected by the keyboard. The electronic device according to claim 3.

5. The display unit indicates the position of each of the terminals in the depth direction of the bottom surface of the electronic device by the position of the light-emitting element in the vertical direction of the front surface or the depth direction of the top surface of the electronic device. Or, The display unit indicates the position of each of the terminals in the vertical direction on the back of the electronic device using the position of the light-emitting element in the vertical direction on the front of the electronic device or in the depth direction on the top surface. The electronic device according to claim 1.

6. The aforementioned keyboard consists of white keys and black keys. The difference in the position of the light-emitting element in the depth direction of the front surface of the electronic device is expressed by using the white keys and the black keys interchangeably. The electronic device according to claim 3.

7. The display unit indicates the status of the terminals. The electronic device according to any one of claims 1 to 6.

8. The control unit, The connection terminal information is obtained from the operation input unit. Based on the aforementioned connection terminal information, the illumination state of a display unit consisting of a light-emitting element provided on the front or top surface of the electronic device is controlled. Monitor insertion into terminals, Once insertion into the terminal is confirmed, the illumination state of the display unit is changed. Terminal status display method.

9. In the control unit, The connection terminal information is obtained from the operation input unit. Based on the aforementioned connection terminal information, the illumination state of a display unit consisting of a light-emitting element provided on the front or top surface of the electronic device is controlled. Monitor insertion into terminals, Once insertion into the terminal is confirmed, the illumination state of the display unit is changed. A program that executes a process.

Images