JPS5852554Y2 - digital clock - Google Patents

Description

[Detailed description of the invention] The present invention selectively displays a small number of display elements to display the "AM" and rPMJ symbols representing morning and afternoon, and the "+" and "-" symbols representing positive and negative. This purpose is to propose a digital watch that has a display section that can selectively display.

An embodiment of the present invention will be described in detail below with reference to the drawings.

The digital clock of this embodiment has a plurality of display sections, for example, three display sections, each of which displays a time difference such as a regional time difference or a seasonal time difference, or a plurality of times having such time differences, for example, three standard times. At the same time, by switching, one of the display sections can display the standard time as it is, and the other two display sections can display the two operating times of the two-stage timer. .

In this case, when displaying the time on the display section, the hour and minute numbers as well as l'-AMJ representing AM and PM are used.
When displaying the symbols "PM" and "J" to indicate a one-time difference, the symbols "+" and "-" representing the positive and negative of the time difference can be displayed along with the hour and minute numbers.

FIG. 1 shows the front panel of the digital clock of this embodiment,
FIG. 2 shows the circuit section, and FIGS. 3 to 5 show "AMJ" displayed on the display section.

The symbol patterns of rPMJ, r+J, and "-" display elements and their display states are shown.

In FIG. 1, Da, Db, and so on.

has three display sections. When displaying time in different regions, display section Da displays the standard time of the first region (for example, Tokyo), and display section Db displays the standard time of the second region and the first time. The time difference from the local standard time is displayed, and the third
The time difference between the standard time of the region and the standard time of the first region is displayed, and when the timer operation time is displayed, the display section D
A remains as it is, and the first operation time of ON or OFF is displayed on the display section Db, and only one display section is displayed.

Displays the second operation time of off or on.

P, Pb and Pc are display parts. This is a display section provided corresponding to Db and Dc, which lights up when the time of a different region is displayed, and displays the name of the region.

P1□, P□2 and P2□sP2□ are the first values displayed on the display sections Db and Dc when the timer operation time is displayed.
and a display section that lights up according to whether the operation is turned on or off at the second operation time.

Next, the circuit section shown in FIG. 2 will be explained.

6ay6b and 6c are display parts Da, Db and D in FIG.
An electro-optical display device such as a liquid crystal display or a light-emitting diode display installed in C displays the hours and minutes by selectively displaying the display elements on each side of the "day" character. At the same time, by selectively displaying a plurality of display elements in a pattern to be described later, the symbols "AM" and "PM" representing morning and afternoon, and "+" representing positive and negative are displayed. and "-" symbols are selectively displayed.

5a, sb and 5c are display drive circuits that drive husband and husband displays 6a, 6b and 6C.

10 is a clock circuit, which will be explained below.

3 is a time signal generation circuit, for example, 32.768Lc
It consists of an oscillator 1 with an oscillation frequency of Hz and a frequency dividing circuit 3 that divides the oscillation output of the oscillator and outputs an IHz signal.

An on/off switch S is provided on the output side of the time signal generating circuit 3.

A counting circuit 4 is connected to which the output from the time signal generating circuit 3 is supplied and counted 1 1 1 to obtain signals of 60H"3600H2 and wHz, respectively.

The standard time in the first region is displayed on the display 6a together with the AM and PM symbols by supplying the output of the counting circuit 4 to the display drive circuit 5a through the switch S85, but the standard time in the second and third regions is The time of 1. is determined by adding or subtracting the output of the memory 7B and the IC from the output of the counting circuit 4 in the synthesizers 8B and 8C, respectively. The combined output is switched to switch Sb5.
The display device 6b is supplied to the display drive circuits 5b and 5c through the display drive circuits 5b and 5c.

6c along with AM and PM symbols.

The counting circuit 4 counts the time signal from the time signal generation circuit 3 to generate signals such as hours, 10 minutes, and 1 minute. Switches Sa□ and Sa2 are provided for advancing or delaying the speed by increments,
These are grounded through a common switch Sa3.

For example, if switch Sa□ is on, turning on sa3 will add digits such as hours, 10 minutes, or 1 minute by 1, and similarly turning on switch Sa2 and turning on switch sa3. When doing so, each digit is subtracted by 1.

The output of the counting circuit 4 is also supplied to the synthesizer 8B together with the output of the memory 7B, where they are added or subtracted.

In the memory 7B, when the output of the counting circuit 4 is 10
This is for storing the hour, minute, positive and negative signals corresponding to the time difference of a desired area for each minute, and the switches Sa□, Sa3. Switches 51) t, 51) 2. each corresponding to Sa3 and having the same function. and Sb3 are provided.

Further, 7b is an input terminal that supplies positive and negative signals.

Then, in the synthesizer 8B, signals for 10 minutes and 1 minute are obtained according to the local time, and these signals are sent to the switch Sb4.
The signal is further supplied to the display drive circuit 5b through the on/off switch Sb5.

The switch Sb4 has a movable contact k and fixed contacts m and n, the movable contact k is connected to the switch Sb5, the fixed contact m is connected to the output side of the memory unit IB, and the fixed contact n
is connected to the output side of the combiner 8B.

When the movable contact kfJl of the switch Sb4 is in contact with the fixed contact n side, when the switch Sb5 is on, the local time is displayed on the display 6 together with AM and PM symbols, and the movable contact k is fixed. When contact m is in contact, the time difference (time difference with respect to the standard time of the first region) stored in the memory 7B is displayed on the display 6 along with positive and negative signs.
b.

Further, a similar memory IC and synthesizer 8C are provided, and the memory IC includes the above-mentioned switch Sal.

Switch S with the same function corresponding to sa2 and sa3 respectively
el' Sc2 and Sc3 are provided.

Further, a changeover switch Sc4 having the same function as the above-mentioned switch So4 is provided on the output side of the memory IC and synthesizer 8C, and its movable contact k is connected to the on/off switch Sc.
5 to the input terminal of the display drive circuit 50.

Further, 7c is an input terminal similar to the input terminal 7b.

Next, the timer circuit TM will be explained.

t11*t12 is an input terminal to which a power source, for example, an AC power source is connected.

t2□ and t2° are output terminals. St□. St2 denotes first and second switches, which are connected in series between input and output terminals t12' and t22.

13.14 is the second class switch St1. This is a control means for controlling the switching of St2.

Reference numeral 11 denotes a matching circuit which supplies a signal to the control means 13 to switch the switch St1 when the outputs of the calculation circuit 4 and the memory IB match.

Reference numeral 12 denotes a matching circuit which supplies a signal to the control means 14 to switch the switch St2 when the outputs of the calculation circuit 4 and the memory IC match.

In addition, memory device 7B. When the IC stores the first and second operating times of the timer, it can also store morning and afternoon times.

When the timer operation time is displayed, the switch S b4. S (The movable contact k of 64 is switched to the fixed contact m side, and the first and second operating times of ON or OFF are displayed on the displays 6b and 6c together with the AM and PM symbols.

Next, the display units Da, Db, and Dc mentioned above (iat
6b and 6c, rAMJ and "PM" symbols representing morning and afternoon, and "+" and "
The pattern of the display element that displays the symbol "-" will be explained.

As shown by I in FIG. 3, the symbol pattern is composed of display elements 21 to 26.

In this case, the symbol pattern is to display the symbols ``<rAMJ'' and ``PMJ'' on the main display elements 21 to 26, excluding the display element 25, as shown in ■ and ■ in the figure.
By adding the horizontal line-shaped auxiliary display element 25 to the display elements 21 to 24 that display PJ, the display elements 22 to 25 can display the characters <"+" and "-" as shown in the figure ■ and ■. I am trying to display the symbol.

As shown by I in FIG. 4, the symbol pattern is composed of display elements 27 to 32.

In this case, the symbol pattern is the main display element body excluding display element bodies 31 and 32 among the 1 display element bodies 27 to 32.
.

■Display the symbols of < rAMJ and J-P MJ,
By adding horizontal linear auxiliary display elements 31 and 32 to the display elements 29 and 30 that display rMJ, the display element 30
32, the symbols "+" and "-" are displayed as shown in the figure [V, V, etc.].

As shown by I in FIG. 5, the symbol pattern is composed of display elements 33 to 38.

In this case, the symbol pattern is as shown in ■ and ■ in the same figure on the main display elements 33 to 38, excluding display element 38. <rAMJ and PMJ symbols are displayed, and the spaces between them are displayed. By adding the horizontal linear auxiliary display element body 38 to the display element bodies 35 to 3T, the display element bodies 36 to 38 can be
, V<"+" and "-" symbols are displayed.

According to the present invention described above, in a digital watch having a display section that displays a plurality of numbers representing the morning, afternoon, positive and negative signs, and time, the display element rAJ consisting of a plurality of display elements and the An additional display element consisting of a display element rMJ arranged on the right side and a display element arranged near the approximate middle of the vertical bar of display element rAJ or rMJ.
-'' and selectively put each display element of display elements rAJ, rMJ, r-J into a display state, thereby displaying morning, afternoon, positive, and negative symbols rAMJ, rPMJ.

Since r+J and r-J are displayed, by selectively displaying a small number of display elements, the symbols "AM" and "PMJ" representing morning and afternoon as well as "+" and "" representing positive and negative are displayed. It is possible to obtain a digital watch having a display section that can selectively display the symbol "-".

[Brief explanation of drawings]

FIG. 1 is a front view showing the entire surface panel of an embodiment of the present invention;
FIG. 2 is a system diagram showing the circuit section of the embodiment, and FIGS. 3 to 5 are pattern diagrams showing symbol patterns of the display section of the embodiment. 6a, 6b and 6c are display parts, 22 to 52 are display elements,
25, 31, 32, and 38 are horizontal linear auxiliary display elements.

Claims (1)

[Scope of utility model registration request] In a digital clock that has a display section that displays AM, PM, positive and negative symbols, and multiple numbers representing the time,
A display element rAJ consisting of a plurality of display elements, a display element rMJ consisting of a display element arranged on the right side thereof, and a display element arranged near the approximate middle of the vertical bar of the display element rAJ or fMJ. By providing an additional display element "-" and selectively putting each display element of the display elements rAJ, rMJ, and r-J into a display state, the above-mentioned AM, PM, positive, and negative symbols rAMJ, rPMJ , r+J, and r-J.