JPH11211857A - Analog type radio wave-corrected timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily confirm that the standard radio wave is received and time is read in via a code analysis in an analog type radio wave-corrected clock. SOLUTION: The standard radio wave of JG2AS is received, and time is displayed according to the Japan standard time with a pointer. This analog type radio wave-corrected clock is provided with a memory means storing the reception of the standard radio wave and the success or failure of time read-in at the time of automatic time correction, a confirmation switch 41, and a success time display control means displaying the reception success time in the prescribed time, e.g. 12 hr or 24 hr, with a pointer when the confirmation switch 41 is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio-controlled timepiece which corrects a display time using a long standard radio wave, and more particularly, reads a time by analyzing a time code included in the standard radio wave. It concerns the display of records.

[0002]

2. Description of the Related Art Today, a radio-controlled timepiece that uses a long-wave standard radio wave (JG2AS) that conveys the Japan Standard Time with high accuracy and displays the time with an extremely small difference from the Japanese Standard Time is used. In this radio-controlled timepiece, when a timepiece is set, such as when a battery is replaced, or at predetermined time intervals, a standard time signal is received and a time code is analyzed to display a time adjusted to Japan Standard Time.

For this reason, this radio-controlled timepiece has a bar antenna for receiving a standard radio wave having a carrier frequency of 40 kHz, and has a reception demodulation means for demodulating a data signal such as a time code from the received standard radio wave. . And
In this radio-controlled timepiece, a time counter that counts a 1 Hertz second signal formed by a crystal oscillator and a frequency divider,
A microcomputer for decoding a time code from the data signal demodulated by the reception demodulation means, for receiving a standard radio wave and analyzing the time code for each required time.
Furthermore, this radio-controlled clock reads the time code of Japan Standard Time into a time counter when the time code is analyzed to determine the correct time data of Japan Standard Time, and adjusts the value of the time counter exactly to Japan Standard Time. In a digital display type clock body, the count value of the time counter is displayed on a display device such as a liquid crystal display device while the value of the time counter is increased every second.

An analog radio-controlled timepiece that displays the time by driving the hands has a bar antenna and a receiving / demodulating means, and also has a built-in microcomputer for decoding the time code and controlling the hands driving motor. It is a body. This analog radio-controlled timepiece includes, for example, as shown in FIG. 6, a bar antenna 13 for receiving a standard radio wave, a reception demodulator 15 for demodulating a data signal such as a time code signal from the standard radio wave, It has a microcomputer 11 for analyzing a code and controlling a pointer driving motor.

[0005] The microcomputer 11 has a second hand motor 25 and an hour / minute hand motor 27 incorporated in the movement 21.
Is connected, and an output pulse from the microcomputer 11 is applied to the second hand motor 25 and the hour / minute hand motor 27 via the motor drive buffer 23. The movement 21 also has an hour / minute hand sensor 33 for detecting the hand position where the hour hand and the minute hand indicate 0:00, and a second hand sensor 31 for detecting the hand position where the second hand indicates 0 second. The sensor 33 for the second hand and the sensor 31 for the second hand are also connected to the microcomputer 11.

A reset switch 19 and a crystal oscillation circuit 17 are also connected to the microcomputer 11.
The microcomputer 11 has a function as a level detecting means for detecting the output level of the receiving and demodulating means 15 and an analyzing means for decoding a signal code contained in the standard radio wave. Of these, the time counter of the clock body has a function as time setting means for setting an accurate current time based on the time code signal, and time data based on the time code signal based on the standard time signal is set. A time counter that advances the count value every second. Further, comparing means for comparing the count value of the time counter with the current time value indicated by the hands, a second hand motor 25 for every second.
Of the second hand motor 25 and the hour / minute hand motor 27 as a main control means for driving the hour / minute hand motor 27 one step every 10 seconds or the like.
The microcomputer 11 also has a display counter that stores the current time indicated by the hands by counting the number of pulses output to the pointer.

The main control means not only controls the second hand to advance by one step every one second and the hour and minute hands by one step every ten seconds, but also controls the hour and minute hands every ten seconds.
It also controls fast-forwarding to perform steps of up to 20 steps. This fast-forward control detects the coincidence between the count value of the time counter and the count value of the display counter, and performs a fast-forward correction of fast-forwarding the hands until the count values of both counters match.
This is executed in the case of the zero-return control in which fast-forwarding is performed until 31 detects the 0 position of the second hand and until the hour / minute hand sensor 33 detects the 0 position of the hour hand and the minute hand.

In some timepieces, a minute hand motor and an hour hand motor are provided in addition to the second hand motor 25, and the three hands drive and control the second hand, minute hand and hour hand individually. In this radio-controlled timepiece, a standard radio wave is received by the bar antenna 13 or the like, a time code signal or the like is demodulated from the standard radio wave by the reception / demodulation means 15, and the demodulated signal is input to the microcomputer 11 to analyze the time code. Then, each data of hour, minute, and second is set in a time counter. The microcomputer 11 operates the microcomputer 11 by an output of an oscillation circuit 17 such as a crystal oscillator that outputs an accurate reference frequency signal,
The microcomputer 11 performs various controls and operations as analysis means and main control means.

The microcomputer 11 performs a control operation when a battery is inserted or a reset switch.
When 19 is operated, as shown in FIG. 7, first, initial setting (S111) is performed, and return-to-zero control (S113) is performed. This return to zero control (S113) is performed by the second hand motor 25.
A motor drive pulse having a frequency of 10 Hz or 20 Hz is output to the motor 27 or the hour / minute hand 27, and a drive pulse voltage is applied to each motor 25 27 fast forward.

Further, in the zero-return control (S113), the second hand sensor 31 and the hour / minute hand sensor 33 each time one motor drive pulse is output to the second hand motor 25 or the hour / minute hand motor 27.
The second hand sensor 31 detects whether the second hand has reached the zero position, and the hour / minute hand sensor 33 detects whether the hour hand and the minute hand have reached the zero position.

When the second hand sensor 31 detects that the second hand has reached the 0 second position, the output of the motor drive pulse to the second hand motor 25 is stopped.
When detecting that the hour hand and the minute hand have reached the 0:00 position by 33, the output of the motor drive pulse to the second hand motor 25 is stopped. In this way, after the second hand and the hour / minute hand are rapidly advanced to the zero position by the zero-return control (S113), the microcomputer 11 receives the standard radio wave by the bar antenna 13 and demodulates by the reception demodulation means 15 the time code and the like. The analysis and the reading of the time of Japan Standard Time (S115) are performed.

As shown in FIG. 8, the standard radio signal of JG2AS defined by the Ministry of Posts and Telecommunications forms a reference marker signal of 0 to 0.2 seconds, and a standard marker signal of 9 seconds, 19 seconds, 29 seconds, etc.
A position marker signal of 0.2 seconds is formed every 0 seconds, and a minute data signal is generated from 1 second to 8 seconds.
An hour data signal is formed during 8 seconds, a day data signal is formed between 22 seconds and 33 seconds, and various other data signals are inserted at each second. A long pulse signal is set to a binary “0”, and a short pulse signal for 0.5 seconds is set to a binary “1”, and a signal of a predetermined binary code is included in one minute, so that the rising of the reference marker signal is accurately performed. It is set to 0 seconds.

Then, the reading of the Japanese standard time (S115)
First, as shown in FIG. 9, first one second is synchronized with the rise of the marker signal or the data signal (S201),
A determination is made as to whether synchronization has been achieved (S202). If synchronization has been achieved, detection of a 0-second position for detecting a marker signal having a width of 0.2 seconds (S203) is performed, and determination as to whether or not the synchronization is at 0-second. (S204) is performed by detecting a reference marker signal following two consecutive marker signals following the position marker signal.

Further, when the 0 second position is detected, the pulse width of the code signal is measured (S206) while determining whether or not the level of the data signal is at the H level (S205).
Each signal of the minute data signal and the hour data signal is converted into a binary code signal having a code “0” or a code “1” according to the duration of the H level, and the binary code signal is converted into time data (S207). It is determined whether or not the last data has been read (S208), and finally, it is determined whether or not the time data is an appropriate numerical value (S209).

When a binary code signal of "0" or "1" is formed by the pulse widths of the minute data signal and the hour data signal, sampling is performed several tens of times per second to detect the pulse width. Of the tens of detections, “1” and 0.8 having a width of 0.5 seconds are determined based on the number of detections of the active level.
A method of identifying a second width of “0”, a sampling of several tens of times per second, and a change point from H to L while performing level determination when the same level of H or L continues several times, and A method of detecting the point of change from L to H to detect the width of the active level and identifying code “0” or code “1”. A method such as determining a 0.5-second width code "1" and a 0.8-second width code "0" by determining two points such as the second position and performing detection twice a second is adopted. Have been.

By the way, if the reception condition of the standard radio wave is good, the output signal of the receiving / demodulating means 15 has a width of 0.2 seconds, 0.5 seconds, or 0.8 seconds as shown in FIG. A pulse signal having a second width active level (L level in the figure) is output at one second intervals. However, the electric wave may be weak depending on the installation location such as indoors.
For this reason, the demodulation of the code signal by the reception demodulation means 15 cannot be performed accurately, and a signal having a level change that follows the code signal while emphasizing a change point of the code signal by a differentiating circuit incorporated in the reception demodulation means 15 or the like. And may be affected by noise such as other radio waves,
When an inaccurate level signal is formed as shown in FIG. 10B and the L level and the H level are distinguished by the threshold value VH, the output of the receiving / demodulating means 15 is temporarily converted into a code signal as shown in FIG. Although it corresponds, it becomes an inaccurate demodulated wave in which the H level and the L level are mixed.

Therefore, when the radio wave becomes weak, the pulse width of the code signal, that is, “0” of the minute data signal and the hour data signal is reduced.
Alternatively, the minute data signal and the hour data signal may not be deciphered by accurately determining “1”. Therefore, the time data obtained by decoding the time data signal is an inappropriate value, for example, a value of 60 or more as minute data, and a value of 24 or more as hour data. When the value becomes a value not used for display, the standard signal is analyzed again and the time is read again. And the time reading (S115) is continued for a required time such as 10 minutes.

When the time data of Japan Standard Time is read as an appropriate numerical value, this time data is preset in a time counter (S211), and a second signal of 1 Hz is corrected so as to correct an error of 1 second or less. The dividing circuit and the second counter to be formed are reset to 0 seconds (S21).
5) The standard radio wave reception and time reading (S115) are terminated.

After receiving the standard radio wave and reading the time (S115) for a required time or resetting the second counter in the standard radio wave reception and the time reading (S115), as shown in FIG. It is determined whether or not the time counter has been preset, that is, whether or not the time data of an appropriate numerical value has been read (S117). When the time data has been read, the time data of Japan Standard Time is preset and The fast forward correction (S119) is performed in which the time corresponding to the value of the time counter that counts up is displayed by the hands.

In this fast-forward correction, it is determined whether or not the count values of the time counter and the display counter match, and when they do not match, the value of the display counter is increased by 1 while outputting a motor drive pulse. It is determined whether or not the respective count values of both counters match, and if they do not match, the motor drive pulse is output to continue the correction of the fast-forward correction, and if they match, the normal hand operation (S120) is performed. What you do.

In this fast-forward correction, a motor drive pulse is output once to the hour / minute hand motor 27 every time the motor drive pulse is output to the second hand motor 25 a predetermined number of times, such as 10 or 20 times. When the time counter and the display counter are separated into an hour / minute counter and a second counter, and the hour / minute hand is fast-forwarded by the hour / minute hand motor 27, the hour / minute counter of the time counter and the hour / minute counter of the display counter are used. In some cases, the second hand motor 25 is fast-forward-driven until the count value of the second counter of the time counter and the second counter of the display counter match while the count value of the second counter and the second counter of the time counter match.

After the time in Japanese Standard Time is displayed with the hands, the second hand is driven every second, and the normal hand (S120) is driven to drive the minute hand and the hour hand every 10 seconds or several tens of seconds. When it is determined that the time is the automatic correction time (S121), when the automatic correction time comes, the reception of the standard radio wave and the code analysis are performed for the required time of several minutes to about 10 minutes to convert the time data of Japan Standard Time. The time reading (S123) to be preset in the time counter is performed.

Further, it is determined whether or not the time data has been read by presetting the time counter (S1).
25) is performed, and when the time such as presetting to the time counter is read, it is determined whether or not the time data of Japan Standard Time matches the display data of the display time by the hands (S127). If so, the display is corrected (S129).

When there is no time difference, the normal hand operation (S
Returning to step 120), it is determined whether or not the next automatic correction time has been reached (S121). If there is a time difference, the display is corrected (S129). This display correction (S1
29) Compares the count value of the time counter with the count value of the display counter, corrects the fast-forward when the count value of the time counter is large, and corrects the steps such as the second hand when the count value of the display counter is large. Stop the advance and repeat the comparison of the count value of the time counter and the count value of the display counter, and stop the advance of the second hand or the like until the count value of the time counter matches the count value of the display counter, Alternatively, there is a device in which the count values of the display counters are sequentially reduced while the output terminals are switched to reverse the second hand motor 25 and the like, so that the count values of both counters match.

In this way, the radio-controlled timepiece sets the hands at 0: 0: 0 when replacing the battery or resetting it.
While driving the second hand every second, receive the standard time signal, analyze the time code signal, etc., read the time data to preset the time data value of Japan Standard Time in the time counter, and display the Japan Standard Time The hands, such as the hour and minute hands, are controlled, and after that, the standard time is read several times a day and the time is read by analyzing the code signal to correct the error between the displayed time and the Japan Standard Time, so that the time is always accurate Is displayed.

Then, in this radio-controlled timepiece, as shown in FIG.
Is connected to the microcomputer 11, and the reading and displaying means 45 is provided on a dial of a clock body or the like. When the processing of receiving the standard radio wave and reading the time (S115, S123) is being performed, the reading and displaying means 45 is set. Blinking is also performed.

As described above, the radio-controlled timepiece performs the reception of the standard radio wave and the reading of the time based on the analysis of the time code for a predetermined time such as about 10 minutes at a predetermined time. A very accurate time display is performed by performing time adjustment including adjustment. When reading the time based on this standard radio wave, the second hand is stopped at a specific position for a few seconds, and the light emitting diode 46 serving as the reading display means 45 blinks, so that the reading of the Japanese standard time can be performed within a predetermined time. When there is no clock, there is a clock body in which the second hand is stopped at another specific position so that the reading and displaying means 45 blinks.

A digital radio-controlled timepiece displays a character mark on a part of the liquid crystal screen, such as a radio tower mark, when the reading of Japan Standard Time can be performed once or twice a day. There is.

[0029]

As described above, the radio-controlled timepiece can receive the standard radio wave, read the Japan Standard Time, and display an accurate time with an error of 1 second or less. Things. However, when receiving this standard radio wave, it is difficult to always reliably analyze the code signal because the radio wave is weak, and it is uncertain whether or not the Japan Standard Time is read and an extremely accurate time is displayed. Was sometimes

While some analog watches use a second hand to indicate that reading has been completed when reading is successful, in an area where radio wave conditions are unstable, reading is performed at midnight when radio wave conditions are relatively stable. Was often successful, and the display of the confirmation was sometimes meaningless. For this reason, in analog radio-controlled watches,
There is a drawback that it is not easy to confirm whether or not it is installed at a position where a standard radio wave can be received correctly, that is, whether or not accurate time display is being performed.

The present invention eliminates such disadvantages and provides an analog-type radio-controlled timepiece that can easily confirm reception of a standard radio wave and time reading by code analysis in an analog-type radio-controlled timepiece. is there.

[0032]

SUMMARY OF THE INVENTION The present invention relates to an analog radio-controlled timepiece that receives a JG2AS standard radio wave and displays the time in accordance with Japan Standard Time using a pointer. And storage means for storing the success or failure of the time reading and a confirmation switch,
12 hours or 24 hours when the confirmation switch is operated
A radio-controlled timepiece provided with a successful time display control means for displaying the successful reception time at which the time reading was successful within a predetermined time, such as within a time, using a pointer.

As described above, the storage means for storing the success or failure of the time reading is provided, and the successful time display control means for displaying the successful reception time by the pointer is provided. , The success time of reading the time can be accurately displayed. Further, since the confirmation switch is provided and the success time display control means is activated when the confirmation switch is operated, the successful reception time can be arbitrarily displayed by the pointer by operating the confirmation switch.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a radio-controlled timepiece according to an embodiment of the present invention has a bar antenna 13 for receiving a standard radio wave, and a reception demodulation means for demodulating a time code and the like from the standard radio wave. 15, a microcomputer 11 as a control means for analyzing the time code and controlling the second hand motor 25 and the hour / minute hand motor 26. The microcomputer 11 includes the second hand in addition to the reception / demodulation means 15. Motor 25, hour / minute hand motor 26, hour / minute hand sensor 33, second hand sensor 31, crystal oscillator circuit 17, reset switch 19
The read and display means 45 such as a light emitting diode 46 is connected to the conventional radio-controlled timepiece. The radio-controlled timepiece is a timepiece provided with a confirmation switch 41.

The second hand motor 25 and the hour / minute hand motor 27 attached to the movement 21 via the motor drive buffer 23 are controlled by the microcomputer 11 as a control means, and when the reset switch 19 is operated. Is the second hand sensor 31 or the hour / minute hand sensor 33,
It is also the same as in the related art that a standard radio wave is received and the time is read when the automatic correction time comes while the time is displayed by the ordinary hand movement while performing the zero return control for detecting the hour and minute position.

In this radio-controlled timepiece, the microcomputer 11 is provided with a memory as a storage means for storing the success or failure of the time reading, and as a success time display control means for displaying the reception success time stored in the memory with a pointer. The function is provided to the microcomputer 11. That is, in this radio-controlled timepiece, as shown in FIG. 2, when power is turned on or reset, first, initialization is performed (S111), and the second hand and the hour / minute hand are set to the 0 position by the zero-return control (S113). The reception of the radio wave and the time reading by code analysis are performed for several minutes to 10 minutes (S1).
15) It is the same as the related art that the time reading for resetting the second counter and the like by presetting the Japan Standard Time to the time counter is performed (S117). Then, the time data of Japan Standard Time is preset in the time counter, and the time reading for resetting the second counter and the like is performed. When the reception is successful, the fast-forward correction (S119) is performed to match the hands with the value preset in the time counter. The normal hand movement (S120) in which the second hand is driven every one second and the hour and minute hands are driven one step at a time every 10 seconds is the same as in the related art.

In this radio-controlled timepiece, it is determined whether or not a predetermined automatic correction time, such as every several hours, has been reached (S121) and whether or not the confirmation switch 41 has been operated to be turned on. The normal hand operation (S120) is continued while performing (S131). Further, in this radio-controlled timepiece, it is determined whether or not the automatic correction time has been reached (S12).
When it is determined that the automatic correction time has been reached according to 1),
The reception of the standard radio wave and the reading of the time based on the code analysis (S123) are performed for about 10 minutes, and the reception of the standard radio wave and the reading of the time based on the code analysis (S12).
The reception status storing the status of 3) is performed (S124), and it is determined whether or not the time reading such as presetting of the time counter or resetting of the second counter has been performed (S12).
5) At the time of successful reception of the time read, the value of the time counter is compared with the value of the display counter to determine whether there is a difference between the time data of Japan Standard Time and the display time by the hands (S127). Is what you do.

If there is a time difference, the display is corrected (S129) so that the time data of the Japan Standard Time, which is the count value of the time counter, and the display time of the pointer, which is the count value of the display counter, are made coincident (S129). When the time cannot be read based on the code analysis, and
When there is no difference between the read Japan Standard Time and the displayed time, and when the time difference is further corrected by the display correction (S129), the process returns to the normal hand operation (S120).

Further, when the normal hand movement (S120) is performed and the automatic correction time has not been reached, it is determined whether or not the confirmation switch 41 has been operated (S131).
When the button 41 is operated, the reception status is stored (S12).
Based on 4), the display of the read time is controlled by controlling the display of the read time (S135). The storage of the reception status at this automatic correction time (S124) is 1
A memory having a bit number corresponding to the number of times of automatic correction performed in two hours is formed in the microcomputer 11 as storage means for storing the success or failure of reception and time reading.
The operation of the microcomputer 11 is as follows.
When the reception of the standard radio wave and the reading of the time (S123) are completed, first, as shown in FIG. 3, a time counter for reading the count value of the hour counter among the time counters is read (S401), and the time corresponding to the read time is read. When the reading is successful based on the determination of whether or not the time reading is successful (S405), that is, when the reception is successful, 1 is set to the corresponding bit of the memory (S407). If the time cannot be read within the required time set as the required time for reading the automatic correction time, and the reception is unsuccessful, the corresponding bit of the memory is set to 0 (S
409).

As described above, after the automatic correction time has been reached, the reception of the standard radio wave and the reading of the time (S123) are performed, and the state of whether the reading of the Japan Standard Time by the analysis of the time code was successful is stored in the memory. It is a radio-controlled timepiece. Also, the reception of the standard radio wave and the reading of the time (S123)
And the reception status is stored (S124), and it is determined whether the reading of the Japan Standard Time is successful (S1).
25) is performed, and when the reading of the Japanese Standard Time is not performed, the process returns to the normal hand operation (S120). When the reading of the Japanese Standard Time is performed, there is a difference between the display time by the hands and the time of the Japanese Standard Time read into the time counter. Judgment whether or not there is (S
127), and if there is a difference, the display is corrected (S129).
To return to the normal hand operation (S120).

Then, this microcomputer 11
The second hand is driven every second by normal hand movement (S120),
Further, it is determined whether or not the automatic correction time has come (S121) while driving the hour and minute hands every ten seconds or the like. If the automatic correction time has not been reached, it is determined whether or not the confirmation switch 41 has been operated ( The normal hand operation (S120) is continued while performing S131). When the confirmation switch 41 is operated and the operation of the confirmation switch 41 is detected by the judgment (S131) as to whether or not the confirmation switch 41 is operated, the display of the read time (S135) is controlled. .

As shown in FIG. 4, the control of the display of the reading time (S135) is to permit a predetermined timer interrupt (S501). This timer interrupt is performed by displaying the read time as an interrupt signal using an output signal of a timer for setting a period for determining a cycle and a pulse width of a motor drive pulse for fast-forwarding the second hand (S135).
Is to process the control.

Then, the reception status is stored (S12).
Based on the record of the successful reception stored in the memory in 4), 12
It is determined whether the standard time has been read due to successful reception within the time (S503). If the standard time of successful reception has not been read within 12 hours, the process shown in FIGS. As indicated by reference numeral C, a predetermined timer interrupt is prohibited (S531), and the display of the read time (S135) ends.

If the standard time has been read due to successful reception within 12 hours, the successful reception time closest to the current time is detected based on the record in the memory by a bit search or the like. An automatic correction time at which a certain time has been read is calculated, a successful reception time is set in a register to set the successful reception time (S505), and an output pattern set (preparation for outputting a drive pulse to the second hand motor) is performed (S505). After performing S507), the output of the motor drive pulse is started (S508) and the output of the motor drive pulse is stopped (S509), and the output pattern is set to prepare for outputting the next drive pulse to the second hand motor (S507). (S511) to determine whether or not the indicated position of the second hand matches the reception success time set in the register (S513). It is intended.

If the indicated position of the second hand does not coincide with the reception success time set in the register, the output of the motor drive pulse is started again (S508), the output of the motor drive pulse is stopped (S509), and the next Setting of output pattern in preparation for outputting drive pulse (S511)
And fast-forward only the second hand until the indicated position of the second hand matches the successful reception time set in the register.

The output of the motor drive pulse is started (S
508) and output of the motor drive pulse is stopped (S509).
Is to output a pulse of about 10 to 20 pulses per second by a timer interrupt and fast-forward the second hand to a predetermined position. When the second hand indicates the successful reception time set in the register, the process proceeds to the determination as to whether or not the indicated position of the second hand matches the successful reception time set in the register (S513), and is shown in FIG. As described above, it is determined whether or not one second has elapsed based on whether or not a one-second interrupt has occurred (S515).

Based on the determination as to whether or not one second has elapsed (S515), if one second has not elapsed, the reading / display means is turned on (S517).
When it is determined that one second has elapsed based on the one-second interrupt (S515), whether one second has elapsed,
Turn off the reading and displaying means (S519), add 1 to the count value of the 5-second counter (S521), and determine whether 5 seconds have elapsed based on the count value of the 5-second counter (S523). It is.

If five seconds have not elapsed, it is determined whether the confirmation switch 41 is on (S52).
5) is performed, and if the confirmation switch 41 is not turned on, the process returns to the determination of whether one second has elapsed (S515), and if the confirmation switch 41 is turned on, 1 is returned.
A determination is made as to whether there is a time at which the standard time, which is another successful reception, has been read before the currently displayed reception success time within two hours (S527).

It is determined whether or not there is another successful reception time (S527).
Returning to the determination of whether or not the second has elapsed (S515), if there is another successful reception time, the 5-second counter is cleared (S515).
529), and returns to the successful reception time setting (S505) in which the successful reception time is set in the register.

In this case, as the set of the reception success time (S505), another reception success time closest to the reception success time currently displayed by the second hand is set in the register. Further, 1 is added to the count value of the 5-second counter (S521), and it is determined whether or not 5 seconds have elapsed (S5).
If it is determined that 23 seconds have elapsed, the predetermined timer interrupt is prohibited (S531), the display time display control (S135) is terminated, and the display is corrected (S12).
9) is performed to continue the normal hand operation (S120).

Accordingly, in this radio-controlled timepiece, the standard time is received and the time is read (S12
When the standard radio wave is received and the time is read (S123) by performing the process of 3), whether or not the reading of the Japan Standard Time by the analysis of the time code is successful is stored in the memory as the storage means. Since the storage (S124) is performed, the reception of the standard radio wave and the reading of the time (S12)
In the clock body performing the automatic correction according to 3), a 12-bit memory is used, and each bit is set to 0 or 1 indicating whether the time reading is successful or unsuccessful, by associating each bit with the automatic correction time, or 0 indicating success or failure of time reading
Alternatively, by performing bit shift while sequentially setting 1, whether or not the reception of the standard time as the automatic correction performed within 12 hours and the reading of the standard time regarding the time reading (S123) are stored. be able to.

When the operation of the confirmation switch 41 is detected, the reading success time, that is, the reading success time based on the data indicating whether the reading of the Japan Standard Time stored in the memory in the reception status storage (S124) was successful or not is performed. The reception success time is detected, the reception success time closest to the current time is calculated and set in the register (S505), the output of the motor drive pulse is started (S508), and the output of the motor drive pulse is stopped (S5).
By fast-forwarding the second hand according to step 09), the reception success time can be displayed by the second hand.

When it is determined whether the second hand position matches the reception success time (S513), when the reception success time is displayed on the second hand, the reading display means 45 is turned on (S51).
7) Then, the second hand is stopped for 5 seconds to display the successful reception time by determining whether or not 5 seconds have elapsed (S523). When the second hand is stopped for 5 seconds, the confirmation switch is again turned on.
When the switch 41 is turned on, it is determined whether or not the confirmation switch 41 is on (S525). The automatic correction time at which the standard time was successfully read by code analysis other than the displayed reception success time is determined. A determination is made as to whether or not there is another reception success time (S527). If there is no other reception success time, the reception success time is displayed for 5 seconds with the second hand and read. Time display (S13
When the control of 5) is finished and there is another reception success time,
The successful reception time at which the standard time was successfully read before the currently displayed successful reception time is set in the register (S50).
5) Then, again, the second hand is fast-forwarded, and the successful reception time set in the register can be displayed by the second hand.

As described above, when the confirmation switch 41 is turned on during the display of the successful reception time for 5 seconds,
A determination is made as to whether or not there is another successful reception time (S527). The automatic correction time at which the standard time was successfully read within 12 hours is displayed by the second hand in order from the one closest to the current time. Can be. If the confirmation switch 41 is operated and the ON state is maintained, if there are a plurality of automatic correction times at which the standard time was successfully read by code analysis within 12 hours, the second hand is fast-forwarded to the most recent time. After displaying the near reception success time, turning on the reading display means 45 and stopping the second hand for one second, turning off the reading timepiece means 45, fast-forwarding the second hand to the next new reception success time, and again, The reading display means 45 is turned on and the second hand is stopped for one second, and the reception success time is displayed in order near the current time. The last reception success time is displayed for five seconds by turning on the reading display means 45 and the second hand. If there is only one automatic correction time at which the standard time was successfully read by code analysis within 12 hours, the second hand is fast-forwarded to the automatic correction time at which the standard time was successfully read. The reception success time is displayed by turning on the reading and displaying means 45 and stopping the second hand for 5 seconds. If there is no automatic correction time at which the reading of the standard time by the code analysis has succeeded within 12 hours, the normal increment of one second is maintained without fast-forwarding the second hand.

Therefore, in the standard radio wave reception and time reading (S123) performed at the automatic correction time within 12 hours, the automatic correction by which the standard time was successfully read by the code analysis within the set required time such as 10 minutes. The time can be sequentially confirmed by operating the confirmation switch 41.
Also, in the above-described embodiment, the confirmation of the automatic correction time at which the reading of the standard time at the automatic correction time within 12 hours is successful is confirmed. The automatic correction time at which the standard time was successfully read by code analysis may be displayed.

In this case, when displaying the successful reception time by stopping the second hand, for example, when the successful reception time within 12 hours is displayed, the reading display means 45 is set to the continuous lighting state, and when the reception success time is displayed within 12 hours or more, In order to display the successful reception time within 24 hours, the reading display means 45 is turned on and off to display the successful reception time within one day on an analog clock using a dial of 12 hours. Is what you can do.

The stop time of the second hand is not limited to one second. When a plurality of successful reception times are sequentially displayed, the stop is performed for about two or three seconds, and the last successful reception time is displayed. 1 hour within 12 or 24 hours
The standard time has been successfully read only once, and when the single successful reception time is displayed, the stop time may be about 5 to 10 seconds.

Further, the display of the reading success time is not limited to the case where the reading is performed by the second hand, but may be performed by the hour and minute hands. In this case, in a clock body in which the hour and minute hands are driven by one motor and the second hand is driven by one motor, displaying the reception success time using the second hand has the advantage that the reception success time can be displayed quickly. Will have.

However, when the reception success time is displayed using the hour and minute hands, in the storage of the reception status (S124), the bit of the memory serving as the storage means for storing the success or failure of the time reading is simply associated with the automatic correction time. 0 or 1 in memory
Of the time counter (S
At the time of 401), the hour data and minute data of the successful reception time are read from the hour counter and minute counter of the time counter, and the hour and minute are stored, and the successful reception time can be accurately displayed by the hour and minute hands. .

As described above, when the reception success time is displayed in the unit of minute, it is necessary to know only at what time the automatic correction time was read successfully and to read the standard time by code analysis successfully. You can also know the time.
In a clock body in which the hour and minute hands are driven by two motors, the reception success time may be displayed by fast-forwarding only the hour hand or only the minute hand instead of the second hand.

Then, the reading time is displayed by displaying the successful reception time by the second hand or the hour / minute hand (S13).
After 5) is completed, the display correction (S129) allows the pointer used for displaying the successful reception time to display the current time, and the normal hand operation (S120) can be continued. Therefore, in this analog type radio-controlled timepiece, by changing the program of the microcomputer 11, it is possible to easily display the successful reception time of the standard radio wave easily without adding display means that impairs the appearance of the clock body. it can. Further, by operating the confirmation switch 41, the reception success time of the past standard radio wave can be known in order, and the radio wave which can easily confirm the receivable time zone and the installation location in a good reception state can be easily confirmed. It can be a modified clock.

The recording of the successful reception time at which the time reading by the code analysis has been correctly performed uses a memory having an appropriate capacity in accordance with the interval between the automatic correction times and the like. In addition to recording, it is possible to confirm the success or failure of time reading performed in the past such as nighttime during the day as a predetermined time such as within 10 hours or 15 hours, or recording within a predetermined time of 24 hours or more In some cases, it is possible to confirm the reception success time in the process of receiving each standard radio wave and reading the time (S123) performed during a long period of time.

[0063]

According to the present invention, there is provided a radio-controlled timepiece which receives a standard time signal and displays the time using a pointer. And an analog-type radio-controlled timepiece having a successful time display control means for displaying a successful reception time within a predetermined time by a pointer when a confirmation switch is operated.

Therefore, in the analog type radio-controlled timepiece, the time when the standard radio wave was received and the reading of the Japan Standard Time was successfully completed can be known in order by operating the confirmation switch, and accurate time display is performed. Can be easily confirmed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a circuit block of a radio-controlled timepiece according to the present invention.

FIG. 2 is a flowchart showing the overall control operation of the radio-controlled timepiece according to the present invention.

FIG. 3 is a flowchart illustrating a storage control operation of a reception status in the radio-controlled timepiece according to the present invention.

FIG. 4 is a flowchart showing a read time display control operation in the radio-controlled timepiece according to the present invention.

FIG. 5 is a flowchart showing a read time display control operation in the radio-controlled timepiece according to the present invention.

FIG. 6 is a diagram showing an example of a circuit block of a conventional radio-controlled timepiece.

FIG. 7 is a flowchart showing the overall control operation of a conventional radio-controlled timepiece.

FIG. 8 is a diagram showing a code format of a Japanese standard radio wave.

FIG. 9 is a flowchart showing an analysis process in a conventional radio-controlled timepiece.

FIG. 10 is a diagram illustrating an example of a demodulated Japanese standard radio signal.

[Explanation of symbols]

Reference Signs List 11 microcomputer 13 bar antenna 15 reception / demodulation means 17 crystal oscillation circuit 19 reset switch 21 movement 23 motor drive buffer 25 second hand motor 27 hour / minute hand motor 31 second hand sensor 33 hour / minute hand sensor 41 confirmation switch 45 read / display means 46 Light emitting diode

Claims (1)

[Claims] 1. A radio-controlled timepiece which receives a standard radio wave and displays the time according to a standard time using a pointer, and a storage means for storing the success or failure of the reception of the standard radio wave and the time reading performed at the automatic correction time. An analog radio-controlled timepiece having a switch and a success time display control means for displaying a reception success time within a predetermined time by a pointer when the confirmation switch is operated.