JPS5940189A - Analog electronic timepiece with timer - Google Patents

Abstract

PURPOSE:To confirm the rest time of a timer on an analog display, to use the titled analog electronic timepiece easily without any complicate operation of a digital type, etc., and to realize a superior design without using a liquid crystal, etc., by displaying the rest time of the timer by the indication position of a pointer after starting. CONSTITUTION:The rest time of the timer is displayed by the indication position of the pointer of a time display part after the timer is started. When an external operaion member 5 which has three states is pulled out from the 1st stage to the 2nd stage, a signal Sb' goes up to an Hi momentarily and while the counters for second, minute, hour, internal time, and display time are reset, a signal Sb rises to the Hi to enter a timer setting mode. At this time, the minute counter 13 is reset, so it is released from coincidence with a second hand position counter 18 and the output signal Ye of a coincidence detecting circuit 19 goes down to a Low. Therefore, a motor driving control circuit 23 selects a 16Hz signal phi16 as a motor driving signal phiM through an AND gate 32 until the indication position of the second hand coincides with the contents of the minute counter 13. Namely, every time the external operation member 1 is pushed by one stage and the minute counter 13 counts up, the second hand is advanced by one step and indicates the position of the timer set time all the time in the timer setting mode.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for checking the remaining time of a timer when a timer is attached to an analog electronic watch.

There are various ways to easily add a timer to an analog electronic clock. Although the set time of the timer may be displayed using a display element such as a liquid crystal, the structure for setting the time is complicated and it is not easy to use. Furthermore, the design is inferior due to the sense of incongruity between the display element such as a liquid crystal display and the dial plate.

Fig. 1 shows an example of an analog electronic watch in which a button-type external operating member 4 is used as a switch, the number N of times the external operating member 4 is pressed is stored in a circuit, and the setting is 1 button - 1 minute. is configured to function as a timer after N minutes.

However, this method has the disadvantage that there is no way to clearly confirm the remaining time of the timer from the outside.

The present invention eliminates such drawbacks and its purpose is to:
To provide an analog electronic clock with a timer that allows the remaining time on the timer to be visually confirmed, is easy to use, and has an excellent design.

The present invention will be described in detail below based on Examples.

FIG. 2 is a block diagram showing one embodiment of the present invention.

Each component in FIG. 2 will be explained below.

Oscillation circuit 1. Frequency divider circuit 22 Frequency divider circuit 3. Chatter link prevention circuit6. Step motor drive pulse shaping circuit 8. Step motor 99 wheel train 10. The hour, minute, and second hands 11 are well-known from quartz-type analog watches that use a crystal oscillator as a time reference source, so a detailed explanation will be omitted.

4 is a push-type external operation member, and when it is pushed, the terminal α which is normally pulled down to "LOW"
becomes H1". 5 is a Rieuz type external operation member, which has three states: 1st stage, 2nd stage, and 3rd stage. In the 1st stage, both terminals S and C maintain LOW". However, in the second stage, the terminal C becomes "H1", and in the sixth stage, the terminal C becomes "H1".The third stage is configured so that the hour and minute hands can be wired.

The switch control circuit 7 outputs a signal Sα' that momentarily becomes 'Hi' when the external operating member 4 is pressed, and a signal Sα' that becomes 'LOW' in two stages when the external operating member 5 is in the first and third stages. When the external operating member 5 is operated from the first stage or the third stage to the second stage, the signal sh' becomes H1' instantaneously. It outputs a signal SC which is ``LOW'' at the first and second stages and H1'' at the third stage.

12, '15, 14, 15, 16, and 17 are part of the timer.

When the timer is started, the second counter 12
It is a sexagesimal counter that counts the 1az signal φ1 inputted from the terminal, outputs the 1-shot signal φi from the Cα terminal, and R
It is reset when the signal Sb' input to the terminal becomes 'H1'.

The minute counter 13 is a sexagenary up/down counter that is incremented by the timer setting signal Se and decremented by the one-shot signal φi, and is reset when the signal Sh' becomes 'H1', and the state changes from 59 to 0. Then, up carry Ucα instantaneously becomes 'H1', and when the state goes from 0 to 59, down carry Dcα instantaneously becomes 'Hl', counter 14 is set to minute counter 13.
This is a binary up/down counter that is raised by the up carry Ucα and down by the down carry DCα, and is reset when the signal Sb' becomes "Hl".

The timer detection circuit 15 detects 'L' only at the moment when both the minute counter 13 and the hour counter 14 become 0.
Signal OT / from OW” to H1” and minute counter
13 and hour counter 14 are both 0, "Hl"
” and outputs a signal OT that is LOW otherwise.

The buzzer ringing circuit 16 is configured to ring the buzzer 17 for one second from the moment the signal OT' becomes 'H1'.

As the buzzer 17, a piezoelectric buzzer, an electromagnetic buzzer, etc. can be considered.

The second hand position counter 18 is a sexagesimal counter for storing the indicated position of the second hand, and counts the motor drive signal φM, and is reset when the signal Sc reaches 1゛H1''. If you do this when the second hand is at the 0 position, the 0 position of the second hand and the 0 of the second hand position counter 18
matches.

- The number output circuit 19 compares the states of the minute counter 13 and the second hand position counter 18, and when the contents match, the coincidence signal Y becomes 'H1' and otherwise becomes 'r,,ow'.
Output g.

The internal time counter 20 has 8
It is a 192-decimal counter, counts the IHR1 signal φ1, and is reset when the signal Sb' becomes @H1''.

The display time counter 21 is an 8192 binary counter for knowing the display position tVt of the hour, minute, and second hands 11, and is configured in exactly the same way as the internal time counter 2o, and counts the motor drive signal φM, and when the signal Sb' is It is reset when it becomes "H1".

The comparison circuit 22 compares the contents of the internal time counter 20 and the display time counter 21, and generates a signal that is normally 6LOW and becomes H1 when the state of the internal time counter 2o is greater than the state of the display time counter 21. SIELr
When the state of the internal time counter 20 matches the state of the display time counter 21, a signal Sy is output which becomes "Hl" and otherwise becomes "bow".

The motor drive control circuit 23 outputs the IH2 signal φ1 or the 16H2 signal φ16 as the motor drive signal φM depending on the logical states of the signal sb, the signal OT, the signal Yg, the signal Large, the signal Ssmall, and the signal Sy.

In addition, 24.25.37 is an inverter, 26°27.28
is an AND gate.

This concludes the explanation of each component shown in FIG. 2, and next, a specific example of the structure of the motor drive control circuit 23 shown in FIG. 2 will be shown and explained in FIG.

In Figure 3, 29, 50.31 are inverters, 32
, 55, 34.55 are AND gates, and 36 is an OR gate. In addition, the signal sb output from the switch control circuit 7 is output to the terminal 2, the signal Ye output from the coincidence detection circuit 19 to the terminal 2, and the signal Ye output from the timer 0 detection circuit to the terminal 3. Comparison circuit 2 is used for signal OT and terminal work.
The signal sLarge output from the comparison circuit 22 is output from the terminal S, and the signal sy output from the comparison circuit 22 is output from the terminal S. The 16Hz signal φ16 output from the frequency divider circuit 2 is
One terminal receives one IHz signal sound output from the frequency dividing circuit 3. In addition, terminal 0 outputs the motor drive signal φM.
．． is connected to the second hand position counter 18, the display time counter 21, and the step motor drive pulse shaping circuit 8.

The AND gate 32 operates when the signal Sb is “Hl” and the signal Y
When e is "LOW", the 16H2 signal φ16 is selected as the motor drive signal φM.

The AND gate 63 selects the 16 Hz signal φ16 as the motor drive signal φM when the signal Sb is 6LOW, the signal Ye is LOW, and the signal 0TE is LOW.

AND gate 34 determines that signal sb is 'r, ow' and
When the signal OT is “Hl” and the signal Large is “Hi”
”, the 16H2 signal φ16 is selected as the motor drive signal φM.

The AND gate 35 is selected as the IHz signal tone 1-ta drive signal φM when the signal Sb is uLOW'', the signal OT is -Hljj, and the signal sy is 6H1''.

This concludes the explanation of FIG. 3, and next, the operation of the analog electronic timer with a timer according to this embodiment will be explained with reference to the block diagram of FIG.

When the external operating member 5 is pulled out from the first stage to the second stage during normal time display (the hour, minute, and second hands move in IH2 mode and display the current time), the signal Sb' is instantaneously “Hl”
”, the seconds counter 12, minute counter 13, hour counter 14, internal time counter 20, and display time counter 21 are reset, and at the same time, the signal sb becomes H.
1” and enters timer set mode.

At this time, since the minute counter 13 is reset, it no longer matches the second hand position counter 18, and the -number output circuit 19
The signal Y e G′! It becomes “LOW”. Therefore, the motor drive control circuit 23 uses the AND gate 62 of the 31st ffl to apply the 16H2 signal φ16 until the indicated position of the second hand (second sword position counter 18) matches the content of the minute counter 13 (0 minutes in this case). Selected as the motor drive signal φM.

During timer set mode (S, 6 is “'I (1)”),
When the external operating member 4 is pressed once, the signal Sα' instantaneously becomes @a1#, a set signal Se is output from the AND gate 28, and the minute counter 13 is incremented. At this time as well, the minute counter 13 and the gold dust 1 placement counter 18 do not match, the signal Ye becomes 'LOW', and the motor drive control circuit 23 is controlled by the AND gate 32 in FIG. 18) matches the content of the minute counter 13 (in this case, until the second hand advances by one step), the 16H2 addendum φ16 is selected as the motor drive signal φM.In other words, the external operating member 4 is pressed once, Every time the minute counter 13 is raised, the second hand also advances one step, and during the timer set mode, the second hand always indicates the position of the timer setting time. -14 Q1 output becomes at H,n, AND
Since the set signal Sθ is no longer output from the gate 28, the maximum time is 60 minutes.

When the setting of the timer is completed and the external operating member 5 is returned from the second stage to the first stage, and the signal Sb becomes "LOW", the output of the AND gate 26 becomes °ゝH1'', and the IH
Pass through the z signal reactor AND gate 27 and enter the second counter 1
Enter 2 to start the timer. Second counter-1
From 2, one signal φi is output every minute after the timer starts, and the minute counter 16 is counted down.

At this time, the minute counter 13 and the second position counter 18 do not match, the signal Yθ becomes "LOW", and the motor drive control circuit 23 uses the AND gate 33 in FIG. counter 13
The 16 Hz signal φ16 is selected as the motor drive signal φM until the content matches the content of . Therefore, each time the remaining time on the timer decreases by one minute, the second hand is fast-forwarded by 59 steps at 16 Hz and again indicates the position of the remaining time on the timer. That is, the second hand always indicates the remaining time on the timer, except when the second hand is being fast-forwarded at L6Hz.

When the minute counter 13 and hour counter 14 both reach 0 (remaining time of the timer is 0), the timer detection circuit 15
Since the signal OT output from the IHz signal φ1 becomes 'H1' and the output of the AND gate 26 becomes 'LOW', the AND gate 27 does not allow the IHz signal φ1 to pass, and the timer stops. At the same time, the signal OT' momentarily becomes 'H1',
The buzzer ringing circuit 16 causes the buzzer 17 to ring for one second to notify that the timer has ended.

When the timer ends (OT is "Hi M"), if the internal time counter 20 has a larger value than the display time counter 21, the signal Sla is output from the comparison circuit 22.
rge is t'Hi'', the motor drive control circuit 23 uses the AND gate 34 in FIG. 16H2 signal φ16 is selected.

Also, when the timer ends, the internal time counter 20
If is a smaller value than the displayed time counter 21,
Since the signal s1arge and the signal SY are both "Low", the motor drive control circuit 26 outputs the signal SY as "PH1".
The motor drive signal φM is not output until the signal φM is reached.

Furthermore, when the timer ends, if the current time (internal time counter 20) and the displayed time (displayed time counter 21) match, the signal sy becomes H1'', and the motor drive control circuit 23 uses the AND gate 35 in FIG. The 1Hz signal φ is selected as the motor drive signal φM. Therefore, when the timer ends, if the displayed time is later than the current time, the slap motor 9 is switched to the 16Hz signal φ until the two match.
When the displayed time is ahead of the current time, the step motor 9 is not driven until the two match, and when the displayed time matches the current time, the step motor 9 is driven at IH2 and returns to normal time display. .

With the above configuration as shown in Figure 2, the second hand indicates the timer set time while the timer is being set, the second hand indicates the remaining time of the timer while the timer is operating, and after the timer ends, the timer is activated so that the current time and the displayed time match. Analog electronic clocks become possible.

This concludes the explanation of this embodiment.

The present invention displays the remaining time of the timer by the indicated position of the pointer after the timer starts, so that the remaining time of the timer can be checked visually and analogously, and moreover, it can be easily confirmed without complicated operations unlike digital timers. Moreover, since it does not require the use of a display element such as a liquid crystal, it is possible to create an analog electronic clock with a timer that is excellent in design, and is extremely effective in practical terms.

In the embodiment of the present invention, an example has been described in which minute-by-minute settings are made by pressing the external operating member, but the timer settings can be set by pressing the external operating member for a long time (for example, 1 to 2 seconds or more). It is also possible to do this quickly and correspondingly move the pointer fast forward to display the set time.

In addition, in the embodiment of the present invention, a 16Hz signal is used as a signal for fast-forwarding the step motor.
Not limited to two signals, any signal of any frequency may be used as the signal for fast forwarding as long as one cycle is longer than the transient vibration period of the step motor.

Furthermore, in the embodiment of the present invention, when the timer ends and the time displayed on the display section is ahead of the current time,
Although it is configured to wait for the current time to catch up with the displayed time without driving the step motor, another method may be to reverse the step motor.

Further, in the embodiment of the present invention, the second hand is configured to always display the remaining time of the timer after the timer starts, but there is another method, for example, when the external operation member 4 is displayed after the timer starts. It is also possible to display the remaining time only when the button is pressed.

Further, in the embodiment of the present invention, the crown-type external operating member 5 is involved in resetting, setting, and starting the timer, but the configuration of the external operating member for resetting, setting, and starting the timer is free. be. For example, by combining the operating time of the bush-type external operating member 4 and the state of the counter of the timer, it is possible to reset, set, and start the timer.

[Brief explanation of drawings]

Fig. 1: An external view of an analog electronic watch with a timer using the present invention Fig. 2: A block diagram showing an embodiment of the present invention Fig. 3: Specific configuration example 1 of the motor drive control circuit 23 in FIG. 2... Oscillation circuit 2.3... Frequency dividing circuit 4.5... External operation member 6 ...Chattering prevention circuit 7...Switch control circuit 8...Step motor drive pulse shaping circuit 9.
...Step motor 10... Wheel train 11... Hour, minute, second hand 12... Second counter 13... Minute counter 14... Hour counter 15... Timer 〇 detection Circuit 16...Buzzer ringing circuit 17...Puza 11-18...Second hand position counter 19...-Number circuit 20...Internal time counter 21...Display time counter 22... ... Comparison circuit 23 ... Motor drive control circuit

Claims (2)

[Claims] (1) The oscillation circuit has a 1-frequency dividing circuit, a step motor drive knob shaping circuit, a step motor, a time display section, and a timer circuit section, and after the timer starts, the remaining time of the G timer is displayed on the time display section. An analog electronic clock with a timer, characterized in that it is configured to display information according to the indicated position of a pointer. (2) An acrog electronic timepiece with a timer as set forth in claim (1), characterized in that the remaining time of evening and f-mar is indicated by the indicated position 1u of the second hand.