JPS6219996Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to an electronic clock in which input information such as set time and date can be set and input by operating setting instruction keys, and is particularly useful when setting alarm time and date information, for example. Then, the setting input information is displayed on the main display and the current time information is displayed on the sub display. When the setting of the input information is completed, the main display shows the current time information and the sub display shows the setting input information. This relates to an electronic clock that automatically switches the display.

<Purpose> In other words, the information at the time of setting input is displayed in a large size on the main display (at this time, the current time information is displayed in a small size on the sub display), and when the setting input is completed, the original display state is automatically restored. That is, the current time information is displayed in a large size on the main display section (at this time, the setting input information is displayed on the sub display section), so that input information can be set accurately.

<Example> The present invention will be described in detail below based on the figures.

FIG. 1 is a block diagram showing the main parts.

K is a numeric key, ALM is an alarm setting instruction key, HMS is a time setting instruction key, MD is a date setting instruction key, and these key signals are sent to the key encoder EC.
is input and coded. key encoder EC
also outputs key operation discrimination signals SN, SE, and SS. SN is output corresponding to the numerical key, SE is the setting instruction key, and SS is output corresponding to each setting instruction key. KB is a key code buffer, MR is a setting register, and RE is a reset circuit for setting register MR.

CG is a clock generator, DV is a frequency divider,
Outputs the clock reference frequency signal. CO is a time register that stores the current time being measured, and DAR is a register that stores the same date. ALR is an alarm time register that stores an arbitrarily input alarm time.
When a match with CO is detected, an alarm will sound at the corresponding time. DC ₁ is the main display decoder, DC ₂
is the sub display decoder, DR is the display drive circuit, DSP
is a display body including a main display section M and a sub display section S. Also, OM is a delay circuit. F, FU, FS are flip-flop circuits.

The operation will be explained assuming that it is in the time setting mode. Note that flip-flop circuits F and FS are in a reset state.

First, a numerical value corresponding to a desired time or date is inputted using numerical keys K. When the numeric key K is operated, the key encoder EC outputs the numeric key operation determination signal SN, and the output of the AND gate A is set to logic "1" until the predetermined time of the delay circuit OM has elapsed, and the reset circuit RE is operated. setting register
Reset (clear) MR. When a predetermined time has elapsed, the output of the delay circuit OM becomes logic "1", and the contents temporarily stored in the key buffer KB are transferred to the setting register MR. In addition, the first numeric key K
Since the flip-flop circuit F is set by the operation, from the second onwards, the setting register MR is not reset, and each time the numeric key K is operated, a predetermined time is obtained and the setting register MR is transferred and stored.

At this time, the flip-flop circuit FS is also set by operating the first numeric key K, and the gate is set.
_G1 selects setting register MR, and gate _G2 selects time register CO, and supplies the respective contents to decoders _DC1 and _DC2 . Therefore, the main display section M displays numerical information input using the numerical keys K (so-called numerical values corresponding to the time information to be set).
is displayed, and the current time, which is being counted every moment, is displayed on the sub-display section S.

After completing the numerical input, press the setting instruction key ALM,
When either HMS or MD is operated, the key encoder EC outputs a setting instruction key operation discrimination signal SE and an operation discrimination signal SS corresponding to the operated setting instruction key. When the time setting instruction key HMS is operated, the latter operation determination signal SS outputs HMS, and the contents stored in the setting register MR are transferred to the time register CO via gate _G3 .
Set the new time in the time register CO. When the date setting instruction key MD is operated, MD is output and transferred to the date register DAR to set the date. When the alarm time setting instruction key ALM is operated, ALM is output and the alarm time register is
Transfer to ALR and set the desired alarm time.

Then, select any setting instruction key ALM, HMS,
The operation determination signal SE output by the operation of MD resets the flip-flop circuit FS, sets the flip-flop circuit FU, and connects the gates _G1 ,
Switch G ₂ . That is, at this time, gate _G1 selects current time register CO, and gate _G2 selects setting register MR. As a result, the current time is displayed on the main display section M, and the set time or date is displayed on the sub display section S.

Figure 2 is a display example showing how the time is set.a is a diagram when the numeric key K of "2" is operated to set the current time to 2:00, and b is a display example showing the time setting time instruction key HMS. It is a state diagram after operating.
Figure 3 is a display example showing how to set the date, where a indicates "3" and "." indicate that the date is set to March 4th.
(decimal point) and "4" are operated in sequence, and b is a state diagram after operating the date setting instruction key MD. FIG. 4 is a display example showing how to set the alarm time, where a indicates "6", "". ” (decimal point),
Figure b shows the state when the numerical keys K of "1" and "5" are operated in sequence, and b is the state diagram after the alarm time setting key ALM is operated.

<Effects> As explained in detail above, according to the electronic clock of the present invention, when inputting date and time settings, the current time on the main display section is automatically displayed on the sub display section, and the setting input information is automatically displayed on the sub display section. is displayed on the main display section, and when the setting input is completed, it is automatically switched to the original state, so the information at the time of setting input is displayed in a large size.
Therefore, it becomes very easy to set the time and date, and erroneous settings can be prevented. Furthermore, after the setting input is completed, the current time is automatically displayed on the main display section, and no special operations are required, making it possible to provide an electronic clock that is extremely easy to use.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIGS. 2 to 4 are diagrams showing display examples during different operations. K...Numeric key, ALM...Alarm time setting instruction key, HMS...Time setting instruction key, MD...
Date setting instruction key, MR...setting register, ALR
...Alarm time register, CO...Time register, DAR...Date register, DC ₁ ...Main display decoder, DC ₂ ...Sub display decoder, DCP...Display body, M...Main display section, S ...Sub display section.

Claims (1)

[Scope of Utility Model Registration Claim] In an electronic watch in which input information such as set time and date can be set and inputted by operating setting instruction keys, a main display section and a sub-display section smaller than the main display section; , a setting register that temporarily stores the entered input information; a gate circuit that stores the contents of the setting register in a predetermined register according to the type of setting instruction key operated; a first flip-flop circuit that is reset in connection with the operation of the setting instruction key; a second flip-flop circuit that is reset when entering a number and is set in connection with the operation of the setting instruction key; In response to the set output of the flip-flop circuit, gate control is performed to display the contents of the setting register on the main display section and the contents of the current time register on the sub-display section, and the gate control of the second flip-flop circuit is performed. In response to the set output,
An electronic timepiece comprising: a gate circuit that performs gate control to display the contents of the setting register on the sub-display section and the contents of the current time register on the main display section.