JP2017169087A - Unlock method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an unlock method of a panel lock which allows for easy recognition of the fact that a value indicated by an operator is deviated from a set value.SOLUTION: In lock state, a dialog D2 opens when any operator is operated. A dialog D3 opens by selecting (OK) when unlocking. When (CUR...) is selected as shown at (d) on the dialog D3, a dialog D4 indicating a simulation operator, simulating the values indicated by level knobs of Ach, Bch, opens. By viewing the dialog D4, the fact that the value indicated by an operator is deviated from a set value can be recognized easily. Lock state is released when the level knobs of Ach, Bch are operated, and the indicating values are equal to the current memory value.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an unlocking method capable of easily recognizing that a value indicated by an operator deviates from a set value when unlocking a panel lock.

  A conventional power amplifier is provided with a plurality of operation elements including an attenuator operation element on a panel, and when the power amplifier is installed, settings suitable for an installation location and a use environment are performed. After the setting is made, if a person other than the person in charge operates the operation panel of the panel, a suitable setting may be changed and trouble may occur. Therefore, the front surface of the panel is covered with a cover so that only the person in charge can operate the operator. In addition, among digital power amplifiers, there is a power amplifier provided with a panel lock function that prevents operation of the panel so that an operator is not operated by mistake (see Non-Patent Document 1).

Yamaha Corporation POWER AMPLIFIER TX6n / TX5n / TX4n Reference Manual [online], [Search February 21, 2016], Internet <http://download.yamaha.com/api/asset/file?language=en&site=countrysite -master.prod.exp.yamaha.com & asset_id = 48589>

The panel lock of the power amplifier in Non-Patent Document 1 is temporarily released by performing a special operation that simultaneously presses the [HOME] button and the [EXIT] button for 3 seconds or more when the panel lock is in the locked state. be able to. The panel lock can be invalidated by setting the Panel to Normal with the panel lock released. Further, when the panel lock is in the locked state, even if the operator is operated, the parameter value assigned to the operator is not changed, and a rotary encoder is used as an operator for adjusting the volume level. For this reason, even if the rotary encoder is operated in the locked state, the volume level is not changed when the locked state is released.
However, there is a case where a volume whose operation position corresponds to the volume level is used as an operator for adjusting the volume level. If the volume is operated in the locked state, the volume operation position is set when the locked state is released. It will be changed to the corresponding volume level. In this case, when unlocking the panel lock, you want to reflect the changed control value as it is, depending on the usage status, or return the control value to the set value and enable the operation. There was a case.

  Therefore, an object of the present invention is to provide a lock release method that can easily recognize that a value indicated by an operator deviates from a set value.

In order to achieve the above object, the unlocking method of the present invention includes a normal state in which the value indicated by the operator is reflected in the set value and a lock state in which the value indicated by the operator is not reflected in the set value. When releasing the lock state, if the set value is different from the value indicated by the control at that time, a display screen indicating that is displayed, and the set value and the control value at that time are displayed. When the displayed values are equal, the main feature is that the display screen is not displayed.
The present invention can be implemented in an arbitrary manner such as a system and an apparatus, in addition to being implemented as a method as described above.

  In the unlocking method of the present invention, when the set value is different from the value indicated by the operator when releasing the locked state, a display screen indicating that is displayed, and the setting value and the operator are When the value shown is equal, the display screen is not displayed. Thereby, it can be visually recognized that the value indicated by the operation element is deviated from the set value. Further, by operating the operation element so that the value indicated by the operation element matches the set value, the display disappears, so that the operation becomes easier. Even if it is desired to change the set value suddenly in the locked state, the locked state can be released when the set value is equal to the value indicated by the operator. The setting value can be changed.

It is a functional block diagram which shows the structure of the power amplifier which can implement the lock release method of this invention. It is a figure which shows the structure of the operation panel of the power amplifier which can implement the unlocking method of this invention. It is a figure which shows the procedure which sets a panel lock to a locked state in the power amplifier which can implement the unlocking method of this invention. It is a figure which shows the procedure which unlocks a panel lock in the power amplifier which can implement the lock release method of this invention. It is a flowchart of the panel lock process performed in the power amplifier which can implement the lock release method of this invention. It is a flowchart of the other panel lock process performed in the power amplifier which can implement the lock release method of this invention. It is a flowchart of the further another panel lock process performed in the power amplifier which can implement the lock release method of this invention.

Hereinafter, embodiments for carrying out the present invention will be specifically described with reference to the drawings.
First, FIG. 1 shows a functional block diagram showing a configuration of a power amplifier 1 that can implement the unlocking method of the present invention.
The power amplifier 1 shown in FIG. 1 has two channels, Ach and Bch, and includes a CPU (Central Processing Unit) 10, a flash memory 11, a RAM (Random Access Memory) 12, other I / O 13, an operator 14, and a display 15 A waveform input unit 20, a digital signal processing unit 21, a D / A / A / D unit 22, and an analog power amplification unit 23, which are connected by a bus 24. The digital signal processing unit 21 described above can be configured by a DSP (Digital Signal Processor).

  Among these, the CPU 10 is a control unit that performs overall control of the operation of the power amplifier 1, and by executing a control program stored in the flash memory 11, parameter editing according to the operation of the operator 14 and the display 15. Processing such as display control and panel lock locked / unlocked control is performed. The flash memory 11 is a rewritable nonvolatile storage unit that stores a control program executed by the CPU 10, configuration data, an SP preset corresponding to the speaker, and the like. The configuration data defines the path of the sound signal from the input unit to the output unit and the signal processing in that path. The RAM 12 is a volatile storage means for the CPU 10 to write and read various data, and may be a work memory of the CPU 10 and a current memory that stores a current memory value that is a set value currently set in the digital signal processing unit 21. used. The other I / O 13 is an interface for communicating by connecting various external devices. Any other standard such as Ethernet (trademark), USB (Universal Serial Bus), etc. can be adopted as a standard used for communication in the I / O 13, and wired wireless is not an issue. The display 15 is a display means for displaying various information according to the control of the CPU 10, and can be constituted by, for example, a liquid crystal panel (LCD) or a light emitting diode (LED).

  The configuration of the path from the sound signal input unit to the output unit will be described. The waveform input unit 20 can receive analog Ach and Bch sound signals from the external source 2 and converts them into digital sound signals, respectively. To the digital signal processing unit 21. The digital signal processing unit 21 performs signal processing such as crossover processing, delay processing, equalizer processing, limiter processing, and dynamics processing on each digital sound signal, and the processed sound signal is converted to D / A / A / Output to D section 22. The D / A / A / D unit 22 converts each digital sound signal into an analog sound signal and supplies the analog sound signal to the analog power amplifier 23. The analog power amplifier 23 amplifies the power of each analog sound signal, and outputs the amplified sound signals of Ach and Bch from the speaker terminal to the external speaker 3.

  The configuration of the operation panel of the power amplifier 1 is shown in FIG. As shown in FIG. 2, the operation panel is provided with a rectangular display 15 on the upper side of the center and a power switch 31 on the lower left side. An Ach level knob 30a for controlling the output level of the Ach sound signal and an Ach selection button 30b labeled “A” are vertically arranged on the right side of the power switch 31, and a menu key 30c and a return on the right side thereof. Keys 30d are arranged side by side. Further, a rotary encoder with a push switch (hereinafter referred to as “encoder”) 30e is arranged on the right side, and this push switch has a function as an enter key. On the right side of the encoder 30e, a Bch level knob 30f for controlling the output level of the Bch sound signal and a Bch selection button 30g labeled “B” are arranged vertically. A power lamp (POWER) and a warning lamp (ALERT) are arranged above the power switch 31, and Ach and Bch protect lamps (PL A and PL B) are located above the Ach and Bch selection buttons 30b and 30g. Has been placed. The power amplifier 1 is provided with a protection circuit, and when an abnormality in the output stage of each channel is detected by the protection circuit, the CPU 10 lights the corresponding lamps PLA and PLB. When the Ach level knob 30a or the Bch level knob 30f is operated, the output level of Ach or Bch is controlled by the CPU 10 according to the operation amount. The home screen which is a basic screen is displayed on the display 15 shown in the figure, and the current output levels of Ach and Bch (Ach is −15 dB and Bch is −19 dB) are mainly displayed on the home screen.

Next, FIGS. 3A to 3F show a procedure for setting the panel lock for locking the panel operation of the power amplifier 1 to the locked state / unlocked state. In each figure, a part of the panel of the power amplifier 1 is shown.
In order to set the locked / unlocked state of the panel lock, first, the user presses the menu key 30c in a state where the home screen is displayed on the display unit 15 as shown in FIG. As a result, the CPU 10 displays the menu screen shown in FIG. In this menu screen, any one of a plurality of prepared menus can be selected. Here, the user selects [UTILITY] as shown in the figure. In this case, the selected [UTILITY] is displayed with the outlines reversed. Next, the user pushes the encoder 30e. Thereby, the selection of [UTILITY] is confirmed, and the CPU 10 displays the UTILITY screen shown in FIG.

On this UTILITY screen, you can select one of a number of prepared utilities, and when the user selects [PANEL LOCK] as shown in the figure, [PANEL LOCK] is displayed with the white outline reversed. . Next, when the user pushes the encoder 30e, the selection of [PANEL LOCK] is confirmed. As a result, the CPU 10 displays the PANEL LOCK screen shown in FIG. On this PANEL LOCK screen, the panel lock state and PIN CODE are displayed. In this case, since the panel lock is in the unlocked state, [PANEL LOCK OFF] is displayed as shown. Here, when the user selects [PANEL LOCK OFF] as shown in the drawing, [PANEL LOCK OFF] is displayed with the outlines reversed. Next, when the user pushes the encoder 30e, the CPU 10 displays a dialog D1 window shown in FIG. 3E on the front of the PANEL LOCK screen displayed on the display 15. In the window of the dialog D1, although not shown, at least [OFF] for unlocking and [ALL] for locking the parameter value displayed on the display 15 and the operator provided on the panel can be selected. It is said. When it is desired to set the lock state, the user turns the encoder 30e and selects [ALL] as shown in the figure. [ALL] is displayed with the outlines reversed. Next, the user pushes the encoder 30e to confirm the selection of [ALL]. Thereby, the CPU 10 displays the home screen shown in FIG. 3F on the display unit 15 with the display values of the parameters of the display unit 15 of the power amplifier 1 and all the controls provided on the panel in the locked state. .
Although the operator of the panel in the locked state can be operated, the value of the parameter assigned to the operator is not changed even when operated, and the display value displayed on the display unit 15 does not change. That is, in the locked state, the parameter setting value in the current memory does not reflect the value according to the position of the operator and the operation amount.

Next, when one of the operators provided on the panel is operated while the panel lock is in the locked state, the procedure for unlocking the panel lock is started. The unlocking procedure is shown in FIGS. 4A to 4G, a part of the panel of the power amplifier 1 is shown.
When any of the operators provided on the panel of the power amplifier 1 is operated, the CPU 10 opens a dialog D2 window shown in FIG. 4A on the front of the home screen displayed on the display unit 15. In this case, the Ach level knob 30a is operated, and the Ach level knob 30a is in the post-operation position rotated to the right. In the dialog D2 window, the locked state can be maintained (CANCEL), unlocked (PARMANENTLY), or temporarily unlocked (TEMPORARILY) by turning the encoder 30e. ] And push the encoder 30e, the selection of unlocking (PARMANENTLY) is confirmed, and the CPU 10 is displayed on the front of the home screen displayed on the display unit 15 in FIGS. 4 (b) and 4 (d). A dialog D3 window is displayed. In the window of this dialog D3, when the locked state is maintained by turning the encoder 30e [CANCEL], the changed value of the operator at that time is directly reflected in the parameter value of the parameter assigned to the operator. [KNOB] and return the value of the operated operator to the current memory value (setting value of the parameter in the current memory when the lock is set) in the parameter assigned to the operator. You can select either [CUR ...] to enable the operation.

  Here, when the user turns the encoder 30e and selects [KNOB] in the dialog D3 as shown in FIG. 4B, [KNOB] is displayed with the outline reversed. Next, when the user pushes the encoder 30e, the selection of [KNOB] is confirmed. As a result, the CPU 10 releases the lock state and rewrites the current memory with the value after the operation of the operation element, thereby changing the operation element to the operation element. The current memory value of the assigned parameter is updated, and the home screen shown in FIG. In this case, since the Ach level knob 30a is operated, the parameter value of the Ach level in the current memory is rewritten to the value indicated by the Ach level knob 30a after the operation, and the digital signal processing unit 21 uses the parameter value. Performs signal processing. When performing this signal processing, it is preferable to gradually bring the parameter value closer to the value of the Ach level knob 30a after the operation. Also, on the home screen, the current output level of Ach is updated to display from −∞ dB to −35 dB (value indicated by the Ach level knob 30a after the operation). When the lock is released, the user can adjust the volume levels of Ach and Bch by rotating the Ach level knob 30a and the Bch level knob 30f.

  When the user turns the encoder 30e and selects [CUR...] In the dialog D3 as shown in FIG. 4D, [CUR. Next, when the user pushes the encoder 30e, the selection of [CUR ...] is confirmed, whereby the CPU 10 displays the Ach level knob 30a and the Ach level knob 30a shown in FIG. 4 (e) on the front of the home screen displayed on the display unit 15. A dialog D4 window is displayed in which a simulated operator that simulates the operation position of the Bch level knob 30f is displayed. In this dialog D4, the current memory values at the levels of Ach and Bch in the current memory are indicated by white circles near the simulated operator. The current memory value is the parameter value set by the Ach level knob 30a and the Bch level knob 30f at the time when the lock state is set. Here, since the Ach level knob 30a is operated, but the Bch level knob 30f is not operated, the value of the Bch level knob 30f is equal to the current memory value of the Bch level, and the Bch simulated operator is [OK] is displayed in the vicinity to that effect. Here, when the user performs an operation of rotating the Bch level knob 30f to the right, the CPU 10 rotates the position of the Bch level knob 30f after the operation to the right as shown in FIG. In addition, since the value of the Bch level knob 30f deviates from the current memory value of the Bch level, [OK] displayed in the vicinity of the Bch simulated operator is deleted.

  When the user rotates the Ach level knob 30a and the Bch level knob 30f so that the simulated operators for Ach and Bch are aligned with the displayed white circles, the CPU 10 determines that the values of the Ach level knob 30a and the Bch level knob 30f are the same. , Ach and Bch levels are determined to be equal to the current memory value, the locked state is released, and the home screen shown in FIG. On the home screen, the current output levels of Ach and Bch are displayed as −∞ dB, which is the same as when the lock state is set. When unlocked, the user can adjust the volume levels of Ach and Bch by rotating the Ach level knob 30a and the Bch level knob 30f.

  In the above description, the Ach level knob 30a is operated to start the procedure for unlocking the panel lock. However, when the panel controls other than the Ach level knob 30a and the Bch level knob 30f are operated. The panel unlocking procedure is started. In this case, since the values indicated by the operators of the Ach level knob 30a and the Bch level knob 30f are the same as the current memory value on the current memory of the operator, the user can change the values shown in FIG. As shown, when [CUR...] Is selected in the dialog D3, the dialog D4 is unlocked without being opened, and the home screen shown in FIG. 4 (f) is displayed. When the user selects [KNOB] in the dialog D3 as shown in FIG. 4B, the current memory value on the current memory is unlocked without being updated, and shown in FIG. 4C. The home screen is displayed. Further, the current output levels of Ach and Bch on the home screen are not updated.

  Next, a flowchart of the panel lock process executed by the CPU 10 is shown in FIG. This panel lock process starts when the selection of [PANEL LOCK] is confirmed on the UTILITY screen shown in FIG. 3B, and in step S10, the CPU 10 shows the setting screen shown in FIG. 3D. The PANEL LOCK screen is displayed on the display 15. Next, by performing the above-described procedure shown in FIGS. 3D and 3E in step S11, the panel lock is changed to the locked state, the setting screen is closed, and the home screen shown in FIG. 3F is displayed. Is done. Next, in step S12, the CPU 10 detects whether or not the operating element provided on the panel of the power amplifier 1 has been operated to change its state. If the CPU 10 does not detect that the state of the operating element has changed (No), the process of step S12 is repeated, and if the CPU 10 detects that the state of the operating element has changed (Yes), step S13 is performed. Proceed to In step S13, the CPU 10 opens a dialog D2 window shown in FIG. When the user selects [OK] by pushing the encoder 30e in the window of the dialog D2 and pushes the encoder 30e, the selection of unlocking (PARMANENTLY) is confirmed, and the CPU 10 determines whether or not FIG. Open the dialog D3 window shown in d). In the window of the dialog D3, either [CANCEL] [CUR ...] [KNOB] can be selected according to the use situation, and when the user selects [CANCEL], the process returns to step S12 to maintain the locked state. Will come to do. When the user selects [KNOB], the value of the manipulator after the change at that time is reflected as it is in the parameter value, and the process proceeds to step S15. In this case, the parameter value of the parameter on the current memory is rewritten with the value of the operator after the change, and the digital signal processing unit 21 performs signal processing with the parameter value. In step S15, the CPU 10 releases the lock state of the panel lock, closes the dialog D3 window for selecting the release method, and displays the home screen shown in FIG. As a result, the panel lock process ends. In this case, since the lock is released, the user can adjust the volume levels of Ach and Bch by rotating the Ach level knob 30a and Bch level knob 30f.

  Further, when the user selects [CUR...] In step S14, the CPU 10 branches to step S17 so that the operation of the operator becomes valid when the value of the operator is returned to the current memory value. In step S17, the CPU 10 opens a window of a dialog D4 that displays simulated operators that imitate the operation positions of the Ach level knob 30a and Bch level knob 30f shown in FIG. Proceed to S18. Here, when the Ach level knob 30a or the Bch level knob 30f is rotated, the CPU 10 rotates and displays the simulated operator in the dialog D4 in accordance with the contents of the rotation operation in step S18. Next, in step S19, the CPU 10 determines whether or not the values of the rotational positions at that time of the Ach level knob 30a and the Bch level knob 30f are equal to the current memory value. Until the CPU 10 determines that the value of the rotational position at that time of the Ach level knob 30a and the Bch level knob 30f is equal to the current memory value, the processing of step S18 and step S19 is repeated, and the CPU 10 If it is determined that the value is equal to the current memory value, the process proceeds to step S20. In step S20, the CPU 10 releases the panel lock state, closes the dialog D3 window for selecting the release method, and displays the home screen shown in FIG. As a result, the panel lock process ends. In this case, since the lock is released, the user can adjust the volume levels of Ach and Bch by rotating the Ach level knob 30a and Bch level knob 30f.

Next, a flowchart of another panel lock process executed by the CPU 10 is shown in FIG.
Since the process from step S10 to step S12 in the panel lock process shown in FIG. 6 is as described above, the description thereof is omitted, but in step S12, the CPU 10 detects that the state of the operation element has changed (Yes). ) And the process proceeds to step S30. In step S <b> 30, the CPU 10 displays a dialog for inputting a password and causes the user to input the password. When the user inputs the password, in step S13, the CPU 10 determines whether or not the input password is correctly input. If the CPU 10 determines that the correct password has not been input (No), the CPU 10 displays a dialog indicating that the password is incorrect and repeats the process of step S31 until the correct password is input. . If the CPU 10 determines in step S31 that the correct password has been input (Yes), the process proceeds to step S13. Since the process of step S13 thru | or step S20 is as above-mentioned, the description is abbreviate | omitted.
Since the other panel lock processing shown in FIG. 6 includes steps S30 and S31 for performing password input processing, it is possible to enhance security and prevent anyone other than the person in charge from unlocking.

Next, FIG. 7 shows a flowchart of still another panel lock process executed by the CPU 10.
Since the processes in steps S10 to S12 and the processes in steps S30 and S31 in the panel lock process shown in FIG. 7 are as described above, the description thereof is omitted, but in step S31, the CPU 10 confirms that the correct password is set. If it is determined that the input has been made (Yes), the process proceeds to step S17. Since the processing from step S17 to step S20 has been described above, the description thereof will be omitted. However, in still another panel lock processing shown in FIG. 7, the processing from step S14 to step S16 is omitted and the lock is released. The operation of the operator is made valid when the value of the operator is returned to the current memory value. This is because if the changed value of the operator at that time is reflected in the parameter value as it is, the volume level may change abruptly. Further, in another panel lock process, the lock is released when the value of the operation element is returned to the current memory value, and the operation of the operation element becomes valid, and steps S30 and S31 for performing the password input process are provided. Therefore, security can be increased so that only the person in charge can unlock.

In the unlocking method according to the present invention described above, an example of a 2ch power amplifier has been shown, but the present invention can also be applied to acoustic devices other than 2ch, for example, acoustic devices such as 4ch and 8ch. Further, the present invention is not limited to the power amplifier, and the unlocking method of the present invention can also be applied to a setting method for an audio device other than the power amplifier, for example, a speaker processor or a stage box for extending input / output of a digital mixer. Moreover, although the unlocking method according to the present invention is the unlocking method of the panel lock, it is not limited to the display of the display provided on the panel or the lock of the operation element, but the display provided other than the panel It can be applied to the unlocking method of the display of the instrument and the lock of the operation element.
In the unlocking method according to the present invention, the values indicated by the operators of the Ach level knob 30a and the Bch level knob 30f are different from the current memory value (set value) on the current memory corresponding to the operator. In this case, since the dialog for displaying the simulated operation element is opened, it is possible to visually grasp that the value of the operation element is deviated from the set value, and it is easy to understand. In this case, the operator is operated by operating the operator that deviates from the set value and the value indicated by the operator becomes equal to the set value, so that the lock is released. It can be easily unlocked. In addition, when one of the panel controls is operated in the locked state, a method selection screen for releasing the locked state is displayed. In the method selection screen, the set value and the value of the operator are equal. Since at least one of the unlocking method and the unlocking method by updating the setting value with the value of the control at that time can be selected, unlocking according to the usage situation Can do.

1 power amplifier, 2 external source, 3 speaker, 10 CPU, 11 flash memory, 12 RAM, 13 other I / O, 14 operator, 15 display, 20 waveform input unit, 21 digital signal processing unit, 22 D / A A / D section, 23 analog power amplifier section, 24 bus, 30a Ach level knob, 30b Ach selection button, 30c menu key, 30d return key, 30e rotary encoder, 30f Bch level knob, 30g Bch selection button, 31 power switch

Claims (5)

There is a normal state in which the value indicated by the operator is reflected in the setting value, and a lock state in which the value indicated by the operator is not reflected in the setting value.
When releasing the lock state, if the set value is different from the value indicated by the operator at that time, a display screen indicating that is displayed, indicating the set value and the operator at that time. The lock release method, wherein the display screen is not displayed when the values are equal.   The unlocking method according to claim 1, wherein the set value in the locked state is a value indicated by the operator when the locked state is set.   The unlocking method according to claim 2, wherein when the display screen is displayed, the lock state is released when a value indicated by the operator is matched with the set value.   The operation element is a physical operation element, and when the operation element is operated in the locked state, the setting operation is performed by displaying a simulated operation element imitating the operation state of the operation element on the display screen. The lock release method according to claim 1, wherein a value and a value indicated by the operator at that time are displayed differently.   The lock release method according to claim 4, wherein a plurality of the operators are provided.