JP2535156Y2 - Display equipment for audio equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] A spectrum intensity display unit using a bar-type display element displays elapsed time on the order of seconds in time display.

[Industrial applications]

The present invention relates to a display device that can be used for both spectral intensity display and time display.

[Conventional technology]

A conventional digital timepiece that uses a seven-segment display element for four digits to display the hour and minute numbers in two digits each has a number of eight.
The switching of seconds is displayed by blinking a colon (:) between hours and minutes as shown in FIG. 7A, or by blinking a dot (•) after minutes as shown in FIG.

[Problems to be solved by the invention]

However, since it is not possible to know how many seconds have elapsed in the method shown in FIG. 8, it is substantially the same as a clock that only displays hours and minutes.

In the present invention, an elapsed time on the order of seconds is displayed by using a bar-type display element used for displaying the intensity of an acoustic signal.

[Means for solving the problem]

The present invention provides a display device of an audio device having a plurality of display element rows for displaying the intensity of each signal in a plurality of signals, a counter for generating an hour signal, a minute signal, and a second signal, and an element of the display element row. An auxiliary display element provided so as to be able to form a number by a combination of the above, the hour signal, the minute signal, the second signal from the counter, and selectively driving the display element row and the auxiliary display element, The minute is displayed by a number consisting of the display element row corresponding to the display position of the hour and minute and the auxiliary element in the display element row, and the second is the display position of the second in the display element row. And display control means for performing display by selectively driving any one of the display elements in the display element row corresponding to.

[Action]

Since the bar-type display element used for displaying the spectrum intensity is obtained by arranging a plurality of display bars (segments) in a line, the elapsed time in the second unit can be changed in units of seconds or 10 depending on the number of lights and blinking points. It can be displayed in seconds. For this purpose, it is not necessary to provide a special 7-segment element for displaying seconds.

〔Example〕

FIGS. 1 (1) to (6) show six embodiments of the present invention. D1 to D7 are seven display elements arranged in the horizontal direction. By illuminating the horizontal bars H in a stack of these elements D1 to D7 in order from the bottom, it is possible to individually display the spectral intensities at seven points of frequencies.
The display elements D1, D2, D4, and D5 also have vertical bars V, which are used for displaying hours and minutes in the clock mode. This vertical bar V is not used in the spectrum analyzer mode. In the clock mode, a part of the horizontal bar H is used for displaying hour and minute numbers and elapsed time in seconds. Specifically, the hours are displayed by the elements D1 and D2, and the minutes are displayed by the elements D4 and D5.
In the display of the seconds, the display is performed every 10 seconds by the element D6, and the display is performed every second by the element D6 or D7 as necessary.

The difference between the embodiments is the display method on the order of seconds. In the embodiment of (1), every time the bar of the element D6 is turned on from the bottom, 10
Indicates that seconds have elapsed. The illustrated example shows a state where 30 seconds have passed since 12:35. In the embodiment of (2), the bar above is blinked every second based on (1).
In the illustrated example, 30 seconds have passed since 10:49, and the fourth bar is blinking every second thereafter. In the embodiment of (3), only one bar of the element D6 is turned on, and the elapsed time on the order of seconds is displayed at the position of the bar (the number from the bottom). The illustrated example is a state where 40 seconds have passed since 11:56. In the embodiment (4), the number of bars in the horizontal direction is set to ten, and the element D6 displays on the order of 10 seconds, and the element D7 displays on the order of one second. The illustrated example is a state in which 43 seconds have passed since 7:28. In both the embodiment of (5) and the embodiment of (6), the use of the element D6 is the same as that of (1). However, in the example of (5), three bars from the bottom of the element D7 and three bars above the element D7 Are blinked alternately every second to indicate the seconds, and in the example of (6), for the three seconds from 57 to 59 seconds, all the six bars from the bottom are blinked to notify switching of minutes.

Control of this type of display device can be performed by a microcomputer. FIG. 2 is a flowchart of display control,
FIG. 3 is a flowchart of a clock process (interrupt process). Step S1 of the display control is data reading from the counter memory T (i) shown in FIG. This memory T
(I) is from T (1) at 10:00 to T (6) at 1s.
The time data (numerical value) at that time is written in each memory. The example shown is 7:28:43 in Fig. 1 (4).
It is time data of seconds. Step S2 is a process of converting the time data into display data. In this process, the ROM shown in FIG. 5B is used. This ROM stores 10 bits of 8-bit display data read out using the time data (i) as an address.
Type is stored. The bit number of this display data corresponds to the segment number shown in FIG. 3A, and data 1 indicates ON and data 0 indicates OFF. For example, when T (i) = 0, segments 1 to 6 are turned on, and the number “0” is displayed. When T (i) = 1, only the segments 4 and 5 are turned on, and the number “1” is displayed. The same applies hereinafter. In step S3, this display data is stored in the display RAM, and in step S3
If the data is transmitted to the display driver from there, the hour and minute display as described in FIG. 1 is performed.

The flow in FIG. 3 is started by an interrupt. The cycle is every second if there is no blink (blinking), and every 0.5 seconds if there is no blink. Step S11 is a process of creating time data for reading the memory T (i) for each interrupt and updating the time to the next hour, minute, and second. This includes carry and the like, but in the case where a blink flag F described later is used, its inversion processing is also included. Step S12 is a process of writing the updated time data (including the flag F) to the memory T (i).

FIGS. 6 (1) to (6) are explanatory diagrams of seconds display corresponding to each embodiment of FIGS. 1 (1) to (6). Display elements D6, D7
Are increased from bottom to top as shown in FIGS. 6 (1) and (4) a). The flag F is used in the embodiments (2) and (6) accompanied by blink.

FIG. 6 (1) shows the structure of the display element D6 of FIG. 1 (1).
ROM data for increasing the number of lit horizontal bars H every second, and accessed by the contents of the memory T (5) in FIG. Display data of T (5) = 0 is all bits 0
Therefore, all the segments are turned off. T (5) =
When it becomes 1, the first bit of the display data becomes 1, so that the first segment of the display element D6 is turned on. Hereinafter, as the numerical value of T (5) increases, the value of the first bit becomes 1 from the first bit to the fifth bit, and then returns to T (5) = 0. Therefore, after 50 seconds, the five bars from the bottom are turned on, and all lights are turned off after 60 seconds. In this example, since six or more lamps are not turned on, T
(5) = 6 to T (5) = 9 is an impossible case.

FIG. 6 (2) shows ROM data and a blink flag F for blinking a bar above one of the lit bars in the display element D6 of FIG. 1 (2) every 0.5 seconds. ROM of this example
Data is accessed at T (5) + F. Flag F is 0.
Since 1 and 0 are alternately repeated every 5 seconds (according to steps S11 and S12 in FIG. 3), as shown in FIG. 1 (2), T (5) =
In the case of 3, T (5) + F becomes 3 or 4, and the display data with those addresses as the addresses is read. RO in this case
M data is required up to T (5) + F = 6.

FIG. 6 (3) is to turn on only the bar of the order of 10 seconds in the display element D6 of FIG. 1 (3), the time of which elapses, so that the ROM data is from T (5) = 1 to T (5). ) = 5, the i-th bit (i = 1 to 5) may be 1 for only one bit.

FIG. 6 (4) shows the ROM data when the number of segments is 10, as shown in FIG. 1 (4), and the display is performed on the order of 10 seconds and 1 second using the two display elements D5 and D6. It is.
Since the time data T (6) on the order of one second takes a value from 0 to 9, ten kinds of display data corresponding to the value are prepared. For T (5), only 0 to 5 are used. To display 43 seconds as shown in FIG. 1 (4), T (5) = 4 and T
(6) The same ROM may be accessed twice when = 3.

FIG. 6 (5) is an explanatory diagram of a ROM in which data to be displayed by the display elements D5 and D6 in FIG. 1 (5) are separately stored. a)
The ROM data of T (5) is the same as that of FIG. 6 (1), but the ROM data of T (6) of b) has three bars from below the display element D6 and three bars above it. Since the lighting is performed every second, T (6) has a different pattern between odd and even numbers. For example, if T (6) = 0 and 11100000, then T
(6) = 1 and 00011100, and this pattern is repeated thereafter. This is stored up to T (6) = 9.

FIG. 6 (6) is a ROM storing display data of the display element D6 of FIG. 1 (6). Display element D6 is 1 from 0 to 56 seconds
Turn on one bar from the bottom every 0 seconds. Therefore, ROM
The basics of the data are as shown in FIG.
Only (5) is sufficient. In order to introduce a blink of 57 to 59 seconds, a flag F which is inverted every 0.5 seconds is required. However, this is not enough.
(5) Access is made at + F + 1, and the address of the ROM is expanded to 7, and display data of all 0 is stored therein.

In this way, the fifth bar from the bottom is lit when 56 seconds have elapsed, but the sixth bar starts blinking simultaneously after 57 seconds. The display data necessary for this blinking is data of 1 in the first to sixth bits and data of all bits 0. To properly use these data every second, the address input T (5) becomes 6 when T (5) = 5 and F = 0, and becomes 7 when T (5) = 5 and F = 1. ) + F + 1 is required.

FIG. 7 is a flow chart showing this processing, in which steps
Steps S21 to S28 show step S11 in FIG. 3 in detail, and step S29 corresponds to step S12 in FIG. In step S21, the counter memory T (i) and the flag F1
Is read. The level of this flag F1 is set in step S2
Invert at 2 and check the level after inversion at step S23. F1
If = 0, the next T (i) is calculated in step S24. If F1 = 1, the value of T (5) is checked in step S25. If T (5) = 5, 50 seconds have elapsed, and the value of T (6) is checked in step S26. 5 if this is 7 or more
Since 7 seconds or more have elapsed, the flag F is set to F1 in step S27.
To the same value as On the other hand, when T (5) is a value other than (or less) (before 50 seconds) or T (6) is 6 or less (before 56 seconds), the flag F is set to 0 in step S28. . T (i) and F1 obtained in this manner are combined with step S2
Set in memory at 9.

The flag F1 is necessary for calculation, and the flag F is used for accessing the ROM. However, since F = 0 before 56 seconds, T
Access only with (5), and after 57 seconds, T (5) + F +
Access with 1. In this embodiment, the time is displayed using the spectrum analyzer display unit. However, the present invention may be performed using a seven-segment element for displaying frequency and the like and a display element array for displaying electric field intensity and the like.

[Effect of the invention]

As described above, according to the present invention, using a plurality of display element rows for displaying the intensity of each signal in a plurality of signals as a master, hours and minutes are clearly indicated by numerals, and seconds are roughly represented by shapes. Is displayed, so that the display element can be sufficiently clearly recognized without having a complicated structure.

[Brief description of the drawings]

1 (1) to 1 (6) are explanatory diagrams of display states of each embodiment of the present invention, FIG. 2 is a flowchart of display control, FIG. 3 is a flowchart of clock processing, and FIG. 4 stores time data. FIG. 5 is an explanatory diagram of hour / minute display data, and FIGS. 6 (1) to (6) are explanatory diagrams of second display data corresponding to FIGS. 1 (1) to (6). FIG. 7 is a detailed flowchart of a clock process using the data of FIG. 6 (6). FIG. 8 is an explanatory diagram of a conventional digital clock.

Claims (1)

(57) [Scope of request for utility model registration] 1. A display device of an audio device having a plurality of display element rows for displaying the strength of each signal in a plurality of signals, a counter for generating an hour signal, a minute signal, and a second signal, and an element in the display element row. An auxiliary display element provided so that a number can be formed in combination with the above, the hour signal, the minute signal, and the second signal are input from the counter, and the display element row and the auxiliary display element are selectively driven,
Hour and minute are displayed by a number consisting of the display element row corresponding to the display position of the hour and minute and the auxiliary element in the display element row, and second is the second of the display element row. A display device for audio equipment, comprising: display control means for performing display by selectively driving any one of display elements in a display element row corresponding to a display position.