JP2005351674A - Radio-controlled clock, electronic equipment, and time correction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To receive on time information reflecting operator's will by receiving the standard radio waves including the standard time information signal of the received standard radio waves, in the radio-controlled clock, the time of which is corrected on the basis of standard time information signal. <P>SOLUTION: The radio controlled clock comprises an on time receiving part 101 for receiving the standard radio waves at the prescribed time; a forced receiving part 102 receives the standard radio waves by the indication of the operator; and a conversion part 103 for converting the contents (the frequency of receiving the standard radio waves, receiving the time, inhibition of receiving/release from inhibition) of the reception process of the standard radio waves by the on time receiving part 101, in the case of reception process of the standard radio waves by the forced receiving part 102. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a radio-controlled timepiece, an electronic device, and a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the standard time information signal applied to the received standard radio wave.

  2. Description of the Related Art Conventionally, when correcting time in a radio-controlled timepiece, there are two modes: a regular reception mode that receives a standard radio wave at a predetermined time, and a forced reception mode that receives the standard radio wave according to an instruction from an operator. Both modes existed as being independent of each other.

  In addition, there is a radio-controlled timepiece that includes a mode that prohibits the correction of the display time using the standard time radio wave while being able to receive the standard time radio wave, and manually sets the mode (see, for example, Patent Document 1).

JP 2003-294876 A

  However, in the above prior art, forced reception is performed by the operator's will, but scheduled reception is performed regardless of the operator's will, and the time of the operator is not corrected. There was a problem that the will was not reflected.

  In addition, for example, even when it is desired to display a time different from the time by the standard radio wave (current time), there is a problem that the current time is automatically corrected by scheduled reception. In order to solve the problem, for example, the above-mentioned Patent Document 1 exists. However, once a mode that prohibits modification is set and then canceled, it must still be done manually, and the operation becomes complicated for the operator and if the mode is forgotten There is a problem that scheduled reception is not performed against the will of the operator. Again, the operator's will is not reflected in the time correction.

  An object of the present invention is to provide a radio-controlled timepiece, an electronic device, and a time correction method capable of performing scheduled reception reflecting an operator's will in order to solve the above-described problems caused by the prior art.

  In order to solve the above-described problems and achieve the object, a radio-controlled timepiece according to the present invention receives a standard radio wave including a standard time information signal, and sets the time based on the standard time information signal related to the received standard radio wave. In a radio wave correction watch to be corrected, a scheduled reception unit that receives the standard radio wave at a predetermined time, a forced reception unit that receives the standard radio wave according to an instruction from an operator, and a reception process of the standard radio wave by the forced reception unit And changing means for changing the content of the reception process of the standard radio wave by the scheduled reception means. Further, in the above invention, the changing means may increase or decrease the frequency of reception of the standard radio wave by the scheduled reception means when the standard radio wave reception process is performed by the forced reception means. . Further, in the above invention, the changing means, when the standard radio wave receiving process is performed by the forced receiving means, based on the reception status of the standard radio wave by the regular time receiving means, the standard by the regular time receiving means. The frequency of radio wave reception may be increased or decreased.

  In the above invention, the changing means may change the reception time of the standard radio wave by the scheduled reception means when the standard radio wave receiving process is performed by the forced receiving means. Further, in the above invention, current location time information storage means for storing information relating to the time of the current location, and reception time determination means for determining the time for receiving the standard radio wave based on the information stored by the current location time information storage means The fixed reception means receives the standard radio wave at the reception time determined by the reception time determination means, and the change means receives the standard radio wave by the forced reception means. In addition, the time of the current location related to the information stored by the current location time information storage means may be changed to a time based on the standard radio wave received by the forced reception means.

  In the above invention, the scheduled reception unit has a function of receiving a plurality of the standard radio waves in a predetermined order, and the change unit is configured to receive the standard radio waves by the forced reception unit. You may make it change the order of reception of the said standard wave by the said scheduled reception means.

  The radio-controlled timepiece according to the present invention is a radio-controlled timepiece that receives a standard radio wave including a standard time information signal and corrects the time based on the standard time information signal applied to the received standard radio wave. There is provided a scheduled reception means for receiving the standard radio wave, and when the display time is changed by an operator, reception of the standard radio wave by the scheduled reception means is prohibited. Also, in the above invention, when the display time is changed by the operator and then returned to the standard time by a further display time change operation, the reception of the standard radio wave by the scheduled reception means is prohibited. It is characterized by canceling. Further, in the above invention, forcibly receiving means for receiving the standard radio wave in accordance with an instruction from the operator, and when the standard radio wave is received by the forcible receiving means, the standard radio wave by the scheduled reception means. You may make it cancel prohibition of reception.

  The radio-controlled timepiece according to the present invention is a radio-controlled timepiece that receives a standard radio wave including a standard time information signal and corrects the time based on the standard time information signal applied to the received standard radio wave. A scheduled reception means for receiving the standard radio wave and a forced reception means for receiving the standard radio wave according to an instruction from the operator, and when the operator performs a predetermined operation, the scheduled reception means In addition to prohibiting reception of standard radio waves, the prohibition of reception of the standard radio waves by the scheduled reception means may be canceled when the standard radio wave reception processing is performed by the forced reception means.

  In the above invention, the predetermined operation by the operator may be a display time changing operation. Moreover, in the said invention, the display means which displays further that the reception of the said standard wave by the said scheduled reception means is prohibited may be provided.

  An electronic apparatus according to the present invention includes the radio-controlled timepiece according to the present invention.

  According to another aspect of the present invention, there is provided a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the received standard time information signal for the standard radio wave. A compulsory reception process for receiving the standard radio wave according to an instruction, a change process for changing the content of the standard radio wave reception process when the standard radio wave reception process is performed by the compulsory reception process, and the change process. And a scheduled reception step of receiving the standard radio wave at regular intervals based on the changed contents.

  A time correction method according to the present invention is a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the received standard time information signal for the standard radio wave. Including a scheduled reception step for receiving the standard radio wave, and when the operator changes the display time, reception of the standard radio wave by the scheduled reception step is prohibited.

  A time correction method according to the present invention is a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the received standard time information signal for the standard radio wave. A scheduled reception step for receiving the standard radio wave, and a forced reception step for receiving the standard radio wave according to an instruction from the operator, and when the operator performs a predetermined operation, The standard radio wave reception is prohibited, and when the standard radio wave reception process is performed in the forced reception process, the prohibition of the standard radio wave reception by the regular reception process is canceled.

  According to the present invention, it is possible to obtain a radio-controlled timepiece, an electronic device, a time correction method, and a time correction program capable of performing scheduled reception reflecting the operator's will.

  Exemplary embodiments of a radio-controlled timepiece, an electronic device, a time correction method, and a time correction program according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Functional configuration of radio-controlled clock)
First, a functional configuration of the radio-controlled timepiece will be described. FIG. 1 is an explanatory diagram showing a functional configuration of a radio-controlled timepiece according to this embodiment of the present invention. In FIG. 1, the radio-controlled timepiece receives a standard radio wave including a standard time information signal, and forcibly corrects the time based on the standard time information signal applied to the received standard radio wave. The reception unit 102, the change unit 103, the current location time information storage unit 104, the reception time determination unit 105, and the display unit 106 are included.

  Here, the scheduled reception unit 101 receives a standard radio wave at a predetermined time (for example, every day at 2 am). The forced receiving unit 102 receives a standard radio wave in response to an instruction from an operator (for example, pressing a predetermined button).

  The changing unit 103 changes the content of the standard radio wave reception process performed by the scheduled reception unit 101 when the standard radio wave reception process is performed by the forced reception unit 102. That is, the content of the standard radio wave reception process by the scheduled reception unit 101 is changed only when the standard radio wave is received as a result of the forced radio wave receiving unit 102 performing the standard radio wave reception process according to the forced reception instruction from the operator. The contents of the standard radio wave reception processing by the scheduled reception unit 101 may be changed only when the standard radio wave is not received. In any case, The content of the standard radio wave reception process by the scheduled reception unit 101 may be changed.

  In the first place, forced reception is performed according to the will of the operator, and scheduled reception is performed regardless of the will of the operator. Therefore, in the past, forced reception and scheduled reception existed separately and independently, but in the radio-controlled timepiece according to the present embodiment, the forced reception process is performed in the scheduled reception process. Will have an impact. This makes it possible to correct the time more reflecting the will of the operator.

In this way, by performing the forced reception operation once, the two processes of the process of forcibly receiving the standard radio wave and correcting the time and the process of changing the content of the scheduled reception process are executed simultaneously. can do. Therefore, for the operator,
(1) Forcibly receive operation to forcibly correct the time,
(2) Perform forced reception operation to change the contents of scheduled reception processing.
(3) Forced reception operation is performed in order to simultaneously realize (1) and (2) above.
There are three possible patterns.

  Changing the content of the standard radio wave reception process by the scheduled reception unit 101 means, for example, that the change unit 103 receives the standard radio wave by the scheduled reception unit 101 when the forced reception unit 102 performs the standard radio wave reception process. Try to increase or decrease the frequency. Specifically, increasing the frequency of reception of the standard radio wave by the scheduled reception unit 101 is, for example, changing reception once per day to reception twice. In addition, specifically, reducing the frequency of reception of the standard radio wave by the periodic reception unit 101 is, for example, that reception once per day is changed to reception once every two days.

  In addition, the changing unit 103 increases the frequency of reception of the standard radio wave by the scheduled reception unit 101 based on the reception status of the standard radio wave by the scheduled reception unit 101 when the standard radio wave reception process is performed by the forced reception unit 102. Or try to decrease. Based on the standard radio wave reception status, for example, when the standard radio wave reception status by the regular reception unit 101 is better or worse than a predetermined standard, the frequency of standard radio wave reception by the regular reception unit 101 is increased or It is to reduce.

  More specifically, when the reception state of the standard radio wave by the scheduled reception unit 101 is better than a predetermined reference, it is not necessary to increase the frequency of reception even if the forced reception by the forced reception unit 102 is performed. Therefore, the frequency of reception is increased when the reception condition of the standard radio wave by the scheduled reception unit 101 is not better (bad) than the predetermined standard. That is, it is a case where the received signal is “unreliable” or “unreliable”. Furthermore, a plurality of criteria are set for the poor reception situation, and the rate of increase is made variable based on a plurality of provided criteria, for example, once a day is received twice or three times. May be. On the other hand, if the reception status is better than a predetermined standard, that is, “reliable” or “reliable”, the frequency of reception is reduced. In that case, the rate of decrease may be made variable as well as making the rate of increase variable.

  Further, the changing unit 103 changes the reception time of the standard radio wave by the scheduled reception unit 101 when the standard radio wave reception process is performed by the forced reception unit 102. Specifically, the reception time of the standard radio wave by the scheduled reception unit 101 is shifted back and forth by, for example, an hour unit. The reception time of the standard radio wave by the scheduled reception unit 101 may be changed in conjunction with the increase or decrease of the reception frequency.

  At this time, the current location time information storage unit 104 stores information related to the current time of the current location. For example, when the current position is Japan, the current time of Japan is stored. The reception time determination unit 105 determines the time for receiving the standard radio wave based on the information stored in the current location time information storage unit 104, and the scheduled reception unit 101 receives the reception determined by the reception time determination unit 105. When the standard radio wave is received at the time, and the changing unit 103 receives the standard radio wave by the forced receiving unit 102, the time of the current location according to the information stored in the current location time information storage unit 104 is changed to the forced receiving unit. The time is changed to the time based on the standard radio wave received by 102. Therefore, when the operator moves to an area where a time difference occurs, for example, when moving from Japan to China, without receiving an instruction for forced reception from the operator, The current time (that is, the current time in China) can be displayed by performing the scheduled reception in FIG.

  The scheduled reception unit 101 has a function of receiving a plurality of standard radio waves in a predetermined order. The change unit 103 performs standard reception by the regular reception unit 101 when the standard radio wave reception process is performed by the forced reception unit 102. Control to change the order of reception of radio waves. For example, in Japan, when the standard radio wave of the 40 KHz Fukushima station is received first and then the standard radio wave of the 60 KHz Kyushu station is received, if forced reception is performed, the first 60 KHz radio wave is received. The standard radio wave of the Kyushu station is received, and then the standard radio wave of the 40 KHz Fukushima station is received. If forced reception is performed again, the order is changed again. The same applies when there are three or more standard radio waves. When the order is changed, the order may be changed in consideration of the reception status of each standard radio wave. In other words, the order may be changed in the order of good reception of standard radio waves received by forced reception.

  The change unit 103 controls to prohibit the reception of the standard radio wave by the scheduled reception unit 101 when the display time is changed by the operator. As a result, when moving to Shanghai, China and delaying the 1-hour display time, the Japanese standard radio wave was received in Shanghai by scheduled reception, but the 1-hour display time was advanced. The problem of changing to Japan time (one hour earlier than China) does not occur.

  Here, in addition to prohibiting reception of the standard radio wave itself, the standard radio wave is received, but the display time may not be changed based on the received standard radio wave. Alternatively, the standard radio wave may be received, and the time may be corrected using only a part of the standard time information signal related to the received standard radio wave. For example, only the minute (long hand) and second (second) or only the second (second hand) of the display time may be corrected and the hour (short hand) may not be changed.

  Further, in order to solve the above problem, there are at least two types of forced reception operation instructions, and when reception is successful by the first forced reception operation, the display time is set to the time of the time information of the received standard radio wave. Correct it. When the reception is successful by the second forced reception operation, the display time takes into account the time difference that has already been changed by the display time change operation by the operator to the time of the received standard radio wave time information. You may make it correct at the time. More specifically, the position indicated by the short hand when forced reception is performed is stored, and the short hand may be driven to the stored position. Other methods may also be used.

  In addition, the change unit 103 cancels the prohibition of reception of the standard radio wave by the scheduled reception unit 101 when the display time is returned to the standard time by a further change operation of the display time after the display time is changed by the operator. Control to do. The changing unit 103 controls to release the prohibition of reception of the standard radio wave by the scheduled reception unit 101 when the standard radio wave reception process is performed by the forced reception unit 102. By not performing scheduled reception, it can be used without any trouble even in an area where it is desired to use it at a time different from the standard time. In addition, when returning to the standard time region, it is possible to return to the correct standard time by performing the forced reception operation without changing the display time.

  Further, the changing unit 103 controls to prohibit the reception of the standard radio wave by the scheduled reception unit 101 when a predetermined operation is performed by the operator, and when the standard radio wave reception process is performed by the forced reception unit 102 Then, control is performed so as to cancel the prohibition of reception of the standard radio wave by the scheduled reception unit 101. Here, the predetermined operation by the operator may be a display time changing operation.

  The display unit 106 displays that the reception of the standard radio wave by the scheduled reception unit 101 is prohibited. Indication of “regular reception not performed” indicating that reception of standard radio waves is prohibited, or correcting the time using at least a part of the standard time information signal related to the received standard radio waves excluding time information Display “execution of partial correction operation” to be performed. Thus, for example, in the case of an analog timepiece, the second hand may be rotated to a predetermined position by pressing a predetermined button so that the operator can recognize it. Therefore, in the case of an analog timepiece, the display unit 106 includes a hand drive unit (not shown). Further, for example, in the case of a digital watch, the display of “not scheduled reception” or “partial correction operation performed” or a figure or a mark suggesting the contents may be digitally displayed. is there.

(Contents of time correction method processing)
Next, the contents of the process of the time correction method according to this embodiment of the present invention will be described. 2-4 is a flowchart which shows the procedure of the process of the time correction method concerning this Embodiment of this invention.

  In the flowchart of FIG. 2, first, based on the time information stored in the current location time information storage unit 104, it is determined whether or not a predetermined time has come (step S201). Here, when the predetermined time has come (step S201: Yes), the regular reception process is performed (step S202), and the process proceeds to step S203. On the other hand, if it is not the predetermined time (step S201: No), the process proceeds to step S203 without doing anything.

  Next, it is determined whether or not there is an instruction for forced reception (step S203). Here, when there is no instruction | indication (step S203: No), it returns to step S201 and repeats each step of step S201-S203 after that. If there is an instruction for forced reception (step S203: Yes), forced reception processing is performed (step S204). And the information regarding a reception condition is acquired (step S205). Here, the acquired information regarding the reception status matches a predetermined condition (specifically, for example, the condition that the received data (received signal) has less noise than the predetermined amount, or the condition of the reliability of the received signal described later). It is determined whether or not to perform (step S206).

  In step S206, when a predetermined condition is met (step S206: Yes), it is considered that the reception is successful, and the processing content of the scheduled reception is changed (specifically, for example, the reception frequency is increased or decreased, or the reception time is changed). Change) (step S207), and when it does not match (step S206: No), it is regarded as a reception failure, and the process proceeds to step S208 without doing anything. Specifically, the reception frequency is increased or decreased, or the reception time is changed. Note that step S206 may be omitted. In this case, step S207 is executed after step S205.

  Further, current location time information is acquired (step S208), and compared with the time information stored in the current location time information storage unit 104, it is determined whether or not they match (step S209). If they match (step S209: Yes), nothing is done and the process returns to step S201. On the other hand, when they do not match (step S209: No), the time information stored in the current location time information storage unit 104 is changed to the current location time information acquired in step S208 (step S210), and then the process returns to step S201. .

  Further, in the flowchart of FIG. 3, first, based on the time information stored in the current location time information storage unit 104, it is determined whether or not a predetermined time has come (step S301). Here, if the predetermined time has come (step S301: Yes), the scheduled reception process is performed (step S302), and the process proceeds to step S303. On the other hand, if it is not the predetermined time (step S301: No), the process proceeds to step S303 without doing anything.

  Next, it is determined whether or not a predetermined operation such as a display time changing operation has been performed by the operator (step S303). Here, when the predetermined operation is not performed (step S303: No), the process returns to step S301, and thereafter, steps S301 to S303 are repeated. Then, when a predetermined operation is performed (step S303: Yes), a process of setting the “scheduled reception not performed” state is performed, and a display process indicating that is performed (step S304). Further, in step S304, only the process of setting the “scheduled reception not performed” state is performed, and the display indicating the “scheduled reception not performed” state is performed after determining whether or not a predetermined button is pressed. It may be performed only when the button is pressed (“Yes”). In step S304, “the“ scheduled reception is not performed ”process and display process” is described, but “the“ partial correction operation is performed ”process and display process” may be used.

  Thereafter, it is determined whether or not there is an instruction for forced reception (step S305). If there is no instruction for forced reception (step S305: No), the process returns to step S304, and thereafter, steps S304 and S305 are repeated. As a result, it is possible to maintain a state where scheduled reception is prohibited. Thereafter, when there is an instruction for forced reception in step S305 (step S305: Yes), forced reception processing is performed (step S306), and then the process returns to step S301. As a result, the prohibition of scheduled reception has been lifted.

  In the flowchart of FIG. 4, first, based on the time information stored in the current location time information storage unit 104, it is determined whether or not a predetermined time has come (step S401). If the predetermined time is reached (step S401: Yes), the scheduled reception process is performed (step S402), and the process proceeds to step S403. On the other hand, if the predetermined time has not been reached (step S401: No), the process proceeds to step S403 without doing anything.

  Next, it is determined whether or not the display time has been changed by the operator (step S403). Here, when the display time has not been changed (step S403: No), the process returns to step S401, and thereafter, steps S401 to S403 are repeated. If the display time has been changed (the time information stored in the current location time information storage unit 104 has not been changed) (step S403: Yes), a process of setting the “scheduled reception not performed” state is performed. Then, a display process indicating that effect is performed (step S404). Further, in step S404, only the process of setting the “scheduled reception not performed” state is performed, and the display indicating the “scheduled reception not performed” state is performed after determining whether or not a predetermined button is pressed. It may be performed only when the button is pressed (“Yes”). In step S404, “the scheduled reception is not performed” and display processing is described, but “the“ partial correction operation is performed ”and display processing” is also possible.

  Thereafter, it is determined whether or not the display time has been changed (step S405). Here, when the display time is not changed (step S405: No), the process proceeds to step S407. On the other hand, if the display time has been changed (step S405: Yes), it is determined whether or not the change has returned to the standard time, that is, the standard time related to the time information stored in the current location time information storage unit 104. (Step S406). If the time has been changed to a time other than the standard time (step S406: No), the process proceeds to step S407.

  Thereafter, it is determined whether or not there is an instruction for forced reception (step S407). If there is no instruction for forced reception (step S407: No), the process returns to step S404, and thereafter, steps S404 to S407 are repeated. As a result, it is possible to maintain a state where scheduled reception is prohibited.

  In step S406, when the standard time is returned (step S406: Yes), the process returns to step 401. If there is an instruction for forced reception in step S407 (step S407: Yes), forced reception processing is performed (step S408), and then the process returns to step S401. By returning to step S401, the prohibition of scheduled reception is lifted.

(Hardware configuration of radio correction watch)
Next, a hardware configuration of the radio-controlled timepiece according to the embodiment will be described. FIG. 5 is a block diagram showing a hardware configuration of the radio-controlled timepiece according to the embodiment of the present invention. In FIG. 5, a radio-controlled timepiece 500 configured to receive a standard radio wave including a standard time information signal and correct the time based on the standard time information signal includes at least an arithmetic control unit 501, an antenna 502, A receiving unit 503 including a receiving station switching circuit 504 and a receiving circuit 505, a code determining unit 506, a receiving situation determining unit 507, a receiving station selecting unit 508, a driving unit 509, a reference signal generating unit 510, a counter A unit 511, a display drive unit 512, a display unit 513, an external input unit 514, a control program storage unit (ROM) 515, and a control information storage unit (RAM) 516.

  Then, for example, when the arithmetic control unit 501 executes the program stored in the control unit program storage unit 515, the functions of the changing unit 103 and the reception time determining unit 105 shown in FIG. The functions of the scheduled reception unit 101 and the forced reception unit 102 shown in FIG. 1 are finally realized. Further, the display drive unit 512 and the display unit 513 realize the function of the display unit 106 shown in FIG. Further, the function of the current location time information storage unit 104 is realized by the control information storage unit 516.

  The control information storage unit (RAM) 516 includes a reception data storage unit 521, a timing data storage unit 522, a reception status storage unit 523, a reception history storage unit 524, a forced reception station storage unit 525, and a scheduled reception. A station storage unit 526 and a scheduled reception mode storage unit 527 are included.

  Here, the arithmetic control unit 501 is configured by a CPU or the like, and controls the entire radio-controlled timepiece 500. In addition to controlling the driving state of the time data storage unit 522, the arithmetic control unit 501 individually controls various components. The antenna 502 receives a standard radio wave including time information. Also, in the receiving unit 503, the receiving station switching circuit 504 inputs a signal for selecting and controlling the receiving station from the receiving station selecting unit 508, and switches the receiving station. The receiving circuit 505 amplifies the standard radio wave received by the antenna 502 and demodulates it by processing such as a filter circuit, a rectifier circuit, and a detection circuit.

  The code determination unit 506 extracts predetermined information from the standard radio wave including the time information received by the reception unit 503. The reception status determination unit 507 receives the output from the reception unit 503, determines the reception status, that is, “reliability” of the received signal, and outputs the determination result to the arithmetic control unit 501. Details of the determination will be described later.

  The receiving station selection unit 508 is for receiving the standard radio wave from the receiving stations stored in the forced receiving station storage unit 525 or the scheduled receiving station storage unit 526 based on the input information from the external input unit 514 and the like. A receiving station is selected, and a signal for selecting and controlling the receiving station is output to the receiving station switching circuit 504 based on control from the arithmetic control unit 501.

  The drive unit 509 drives the reception process by the reception unit 503 based on the signal from the calculation control unit 501. Reference signal generation unit 510 is formed of, for example, a transmission circuit, and generates a signal having a predetermined frequency that serves as a reference for time measurement processing. In addition, the counter unit 511 halls the calculation control unit 501 having a predetermined frequency, for example, 1 Hz in this specific example, through a suitable frequency divider circuit or the like, from the reference signal generated from the reference signal generation unit 510. A halt release signal for performing the release is created, and the created halt release signal is output to the arithmetic control unit 501.

  The display driving unit 512 drives the display unit 513 to display the time correction result. The display unit 513 displays calendar information such as the current time, date and day of the week, and information regarding the radio wave reception status. The display unit 513 implements a function as a display unit, that is, the display unit 106 illustrated in FIG. Details of the specific contents of the display unit 513 will be described with reference to the drawings described later.

  The external input unit 514 inputs an operation instruction from the operator. Specifically, buttons and crowns. The control program storage unit 515 is generally composed of a ROM, and stores various control programs. The display time changing operation is also performed by operating the external input unit 514.

  In the control information storage unit (RAM) 516, the reception data storage unit 521 stores the reception data determined by the code determination unit 506. Specifically, “0”, “1”, and “P” signals are stored with predetermined bits (for example, 60 × n bits (n = 1, 2,...) After “P” signals appear continuously). To do.

  The time data storage unit 522 stores time information or calendar information output from the arithmetic control unit 501, that is, time data corrected by the received standard radio wave.

  In addition, the reception status storage unit 523 stores information related to the reception status of radio waves determined by the reception status determination unit 507. Specifically, the information includes types of information such as “H (high reliability)”, “M (medium reliability)”, “L (low reliability)”, “NG (no reliability)”, and time information thereof.

  In addition, the reception history storage unit 524 receives data on all received standard radio waves, for example, reception stations, reception frequencies, reception times, reception states (electric field strengths), whether reception is successful, etc. Receive history information is stored.

  In addition, the forced reception station storage unit 525 stores information on a reception station that performs one or a plurality of forced receptions, for example, information on the frequency of a standard radio wave, a code pattern, and the like. As described above, if there are multiple types of forced reception, each is stored. In addition, the scheduled reception station storage unit 526 stores information on a reception station that performs one or a plurality of scheduled receptions, for example, information on the frequency of a standard radio wave, a code pattern, and the like. The scheduled reception mode storage unit 527 stores information related to the scheduled reception mode. The data structure of the regular reception mode storage unit 527 will be described later.

  In such a configuration, the arithmetic control unit 501 releases the halt state of the CPU, and controls the control information storage unit (RAM) 516 according to a predetermined control program stored in the control program storage unit 515 configured by the ROM. The time data in the time counting data storage unit 522 for counting the time calendar data is incremented every second. In addition, the arithmetic control unit 501 counts time (calendar) data by carrying the calendar data such as minute data, hour data, and day data as necessary. Predetermined time information or further calendar information in the time data storage unit 522 after being changed every second is displayed on the display unit 513. The scheduled reception operates when the time data storage unit 522 reaches a predetermined time information value. The forced reception is operated by operating the external input unit 514.

  Using the various control programs stored in the control program storage unit 515, the calculation control unit 501 uses the data stored in the control information storage unit (RAM) 516 in which various control information is stored. Although an example in which arithmetic processing is performed and various components of the radio-controlled timepiece 500 are driven and controlled has been shown, the present invention is not limited to such a specific configuration, and the CPU is The same function can be realized with a random logic configuration that is not used.

(Contents of receiving operation)
Next, the reception operation will be described. The received signal received and captured is determined by the reception status determination unit 507 as to whether or not the received signal received and captured is reliable. If it is determined as “reliable”, the data of the received signal is determined. Is stored in the received data storage unit 521 as time calendar data via the code determination unit 506 and the calculation control unit 501.

  As another processing method, after first storing the received data in the received data storage unit 521, a determination process is performed to determine whether or not the received data (received signal) stored in the received data storage unit 521 is reliable. When the determination unit 507 determines that the received signal is “unreliable”, the data stored in the reception data storage unit 521 is deleted, and the processing to replace the time measurement data storage unit 522 is not performed. Even when it is determined to be “reliable”, the time (calendar) correction is performed by replacing the data in the timing data storage unit 522 with the data in the reception data storage unit 521. Good.

  Here, the reception status determination unit 507 generates a rectangular pulse (a rectangular pulse in which codes “0”, “1”, and “P” are defined by the width of the rectangular pulse) included in the long standard wave. Input from the receiving unit 503. The reception status determination unit 507 further detects the rising edge of the signal from the reception unit 503, counts the detection interval, and determines whether the reception signal is “reliable” or “unreliable” based on the count value. Is made. Specifically, this count value is supposed to be at an interval of 1 second, but this 1 second cycle is unstable depending on the reception environment (noise intensity, presence or absence, etc.), that is, the received signal is “unreliable”. In this case, what is supposed to be a period of 1 second is disturbed.

  The comparison between the count value and a predetermined comparison value (for example, 1 second ± 32 ms) is determined for 10 seconds, for example, and the reception status is determined by determining “reliability” of the received signal. Another method may be used as a method for determining the reception status. For example, the reception status determination unit 507 may determine the “reliability” of the standard radio wave reception signal including time information by detecting the electric field strength.

  If the received signal can be determined to be “reliable” by this operation, the received control unit 501 uses the acquired received data based on a predetermined algorithm stored in the control program storage unit 515. A process of storing certain time calendar data in the received data storage unit 521 is performed.

  As a specific example of correcting the time based on the received standard radio wave, as described above, the control information storage unit (RAM) 516 stores the program in the control program storage unit 515 based on the control of the arithmetic control unit 501. Software processing that corrects the time by manipulating predetermined data is adopted. For example, a time data storage unit 522 that is a time measuring means is not a RAM, but a counter means that combines a flip-flop and a gate, for example. You may make it comprise by.

  Next, a process after the received data is stored in the received data storage unit 521 will be described. A rectangular pulse (rectangular pulse defined by the width of the rectangular pulse of the code “0”, “1”, “P”) included in the long standard wave is one set in one minute. The received data constitutes data such as time calendar data. Therefore, the arithmetic control unit 501 receives the received signal in order to confirm the reliability of the received signal after the determination of “reliable” of the received signal based on a predetermined algorithm stored in the control program storage unit 515. Two sets of data are acquired, and it is determined whether the two time calendar data are different by one minute. In this case, the reception data storage unit 521 includes a memory having a capacity capable of storing two sets of reception data.

  As described above, the validity of the data is further confirmed after the determination of “reliable” of the received signal. For example, the receiving unit 503 receives erroneous data (such as “1” which should have been “0” originally). Or, although rare, it is effective when a radio signal from a station that transmits a long standard wave is erroneously transmitted. When the reliability including the validity of the received data (received signal) is determined after the determination, the arithmetic control unit 501 stores a predetermined value stored in the control program storage unit 515. Based on the algorithm, the process of replacing the data in the time data storage unit 522 with the data in the reception data storage unit 521 is performed, and the time (calendar) is corrected using the time calendar data. In addition, when it is determined that the received signal is “unreliable”, a predetermined algorithm for displaying “There is a contradiction in received data” on the display unit 513 is stored in the control program storage unit 515. It is possible to provide warning information to the user at the time of unprecedented reception.

  The receiving unit 503 receives the standard radio wave from the station that transmits the standard radio wave including the time information of the designated frequency. For example, the control program storage unit determines that the received signal in the reception status determination unit 507 is “reliable”. Based on a predetermined algorithm stored in 515, the operation control unit 501 "takes two sets of received data and determines whether the two time calendar data are different by 1 minute". ”Indicates that“ the reception has been determined to be normal ”. In this case, the data in the timing data storage unit 522 is replaced with the data in the reception data storage unit 521 to correct the time (calendar). The current accurate time (calendar) information is displayed on the display unit 513 and “reception success” is displayed on the display unit 513.At the same time, the reception history is stored in the reception history storage unit 524 provided for each receiving station. The determination as to whether or not the standard radio wave including the time information has been normally received may be made by detecting the electric field strength.

(Contents of scheduled reception mode storage unit 527)
Next, the contents of the scheduled reception mode storage unit 527 will be described. FIG. 6 is an explanatory diagram showing an example of the contents of the scheduled reception mode storage unit of the radio-controlled timepiece according to one embodiment of the present invention. In FIG. 6, information about each scheduled reception mode (scheduled reception mode information) with serial numbers stored in the scheduled reception mode storage unit 527 includes “reception start time”, “reception station”, “success flag”. , And items related to the “prohibition flag”.

  The item “reception start time” stores information related to the reception start time. In the “receiving station” item, information on the receiving station (in Japan, “Fukushima” or “Kyushu”) is stored. Further, information regarding the latest reception status is stored in the item of “success flag”. If reception is successful, “ON” is set. If reception fails, “OFF” is set. The “success flag” is updated every time reception is performed based on each scheduled reception mode information. Further, information on whether or not the prohibit mode is set is stored in the item “prohibit flag”. When the prohibit mode is set, “ON” is set. When the prohibit mode is not set, “OFF” is set. The “prohibition flag” is updated every time the prohibit mode is set / cancel.

  Therefore, in FIG. 6, the scheduled reception mode information of serial number “1” is that the reception start time is 2:00 am, the receiving station is the Fukushima station, and both the success flag and the prohibition flag are OFF, The scheduled reception mode information of the number “2” is that the reception start time is 3 am, the receiving station is the Fukushima station, both the success flag and the prohibition flag are OFF, and the serial reception mode of the serial number “3” The information is that the reception start time is 3:00 am, the receiving station is the Kyushu station, the success flag is OFF, and the prohibition flag is ON. With respect to the prohibition flag, all scheduled reception mode information may be switched on / off at once or individually.

  FIG. 7 is a flowchart showing the procedure of the scheduled reception process of the radio-controlled timepiece according to one embodiment of the present invention. In the flowchart of FIG. 7, first, data of serial number “1” is extracted (step S701), and the prohibition flag is checked (step S702). If the prohibition flag is ON (step S702: ON), the process proceeds to step S709 without doing anything. On the other hand, when the prohibition flag is OFF (step S702: OFF), the receiving station data is acquired from the data extracted in step S701 (step S703). Next, it is determined whether or not the reception start time has been reached based on the data extracted in step S701 (step S704), and when the reception start time is reached (step S704: Yes), Reception processing is performed (step S705).

  Then, it is determined whether or not the reception is successful (step S706). When the reception is successful (step S706: Yes), the success flag is turned on (step S707), and when the reception is not successful (step S706: No). The success flag is turned OFF (step S708). Next, whether the scheduled reception mode information is the last information, that is, scheduled reception mode information having a serial number that follows (if the scheduled reception mode information is the number “1”, the number “2”) It is determined whether or not (scheduled reception information) exists (step S709). Here, if it is not the last, that is, if there is scheduled reception mode information having a serial number that follows (step S709: No), data of the next number is extracted (step S710) and the prohibition flag is checked. (Step S711).

  If the prohibition flag is ON (step S711: ON), the process returns to step S709. On the other hand, if the prohibition flag is OFF (step S711: OFF), the success flag of the scheduled reception mode information immediately before (the serial number is the previous one) is checked (step S712). If the success flag is OFF (step S712: OFF), the process returns to step S704 in order to perform the regular reception process as usual. On the other hand, if the success flag is ON (step S712: ON), it is determined whether or not the reception station is the same as the reception station information of the previous scheduled reception mode information based on the reception station data acquired in step S703. (Step S713). If the receiving stations are different (step S713: No), the process returns to step S704 in order to perform the regular reception process as usual.

  On the other hand, if the success flag is ON and the receiving stations are the same (step S713: Yes), it is determined that it is not necessary to perform the scheduled reception again, and the routine proceeds to step 709 without performing the regular scheduled reception process. . FIG. 8 is an explanatory diagram showing another example of the contents of the scheduled reception mode storage unit of the radio-controlled timepiece according to one embodiment of the present invention. In FIG. 8, since the success flag of the serial number “1” is ON and the receiving stations are the same (Fukushima), in this case, the reception processing of the serial number “2” is not performed.

  Note that the omission of the reception process by the success flag may be determined by, for example, the elapsed time from the reception start time in the immediately preceding scheduled reception mode information. That is, when the interval is longer than the predetermined time, the reception process may be performed regardless of whether the success flag is ON / OFF. If the reception frequency is increased or decreased and the reception time is frequently changed, it is effective to consider the elapsed time. In step S709, when the scheduled reception mode information is the last information (step S709: Yes), a series of processing is terminated and the initial state is returned (RETURN).

  FIG. 9 is an explanatory diagram showing a state in which the frequency of scheduled reception processing is increased. In FIG. 9, when there is one scheduled reception mode information (only the serial number “1”), a serial number “2” is newly added to increase the frequency. At this time, the reception start time may be set automatically at a predetermined time interval (for example, 1 hour) or may be set by the operator. Thereby, the frequency can be increased. Although illustration is omitted, when the frequency is decreased, on the contrary, it can be realized by thinning out the regular reception mode information.

  FIG. 10 is an explanatory diagram illustrating a state in which the reception time of the scheduled reception process is changed. In FIG. 10, the reception time can be changed by overwriting the already stored reception start time (02:00) with the new time (03:00) to be changed.

  FIG. 11 is an explanatory diagram showing a state in which the order of reception is changed in a plurality of receiving stations. In FIG. 11, the reception order (Fukushima (serial number “1”) → Kyushu (serial number “2”)) is changed, and the reception order is changed by changing the serial number (Kyushu). (Serial number “1”) → Fukushima (serial number “2”)). In the case of the forced reception process, although not shown, the reception order can be changed as in the regular reception process.

(Example of display contents on the display)
Next, an example of display contents on the display unit 513 will be described. FIG. 12 is an explanatory diagram showing an example of display contents of the display unit of the radio-controlled timepiece according to one embodiment of the present invention. FIG. 12 shows an analog timepiece, and 1201 is a second hand. By pressing a button that is not shown in the figure, the mode is switched to the scheduled reception display mode, and the second hand 1201 indicating the current time rotates at a high speed, and “OK” 1202, “REC” 1203, “NG” regardless of the current time. "1204" or "NO REC" 1205.

  Here, when “OK” 1202 is pointed out, it indicates that the latest scheduled reception was successful. Further, when “REC” 1203 is pointed out, it indicates that the scheduled reception is being performed. “NG” 1204 indicates that the most recent scheduled reception has failed. In addition, “NO REC” 1205 indicates that the scheduled reception is prohibited. The second hand 1201 pointing to either of them releases the scheduled reception display mode after a predetermined time has elapsed and again indicates the second of the current time. Even if the button is not pressed, “REC” 1203 may always be displayed during reception, and the current time display may be returned after reception.

  As described above, according to the present embodiment, the scheduled reception that reflects the operator's will is performed by changing the content of the scheduled reception process based on the operation such as forced reception or changing the display time. It becomes possible to do.

  In the above embodiment, the radio wave correction clock has been described. However, the radio wave correction clock includes all kinds of clocks such as a wristwatch, a wall clock, and a table clock. In addition, the present invention is not limited to a radio wave correction watch, but a camera, a digital camera, a digital video camera, a game device, a mobile phone, a PDA (Personal Digital Assistant), a notebook personal computer incorporating the radio wave correction watch. It may be a portable information terminal device such as a home appliance or an electronic device including a car.

  As described above, the radio-controlled timepiece, electronic device, and time correction method according to the present invention receive a standard radio wave including a standard time information signal, and correct the time based on the standard time information signal applied to the received standard radio wave. Suitable for use in watches and electronic devices.

It is explanatory drawing which shows the functional structure of the radio-controlled timepiece concerning this Embodiment of this invention. It is a flowchart which shows the procedure of the process of the time correction method concerning this Embodiment of this invention. It is a flowchart which shows the procedure of another process of the time correction method concerning this Embodiment of this invention. It is a flowchart which shows the procedure of another process of the time correction method concerning this Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the radio wave correction timepiece concerning one Example of this invention. It is explanatory drawing which shows an example of the content of the scheduled reception mode memory | storage part of the radio wave correction timepiece concerning one Example of this invention. It is a flowchart which shows the procedure of the process of scheduled reception of the radio-controlled timepiece concerning one Example of this invention. It is explanatory drawing which shows another example of the content of the scheduled reception mode memory | storage part of the electromagnetic wave correction timepiece concerning one Example of this invention. It is explanatory drawing which shows the state which increased the frequency of the regular reception process. It is explanatory drawing which shows the state which changed the reception time of the regular reception process. It is explanatory drawing which shows the state which changed the order of reception in a some receiving station. It is explanatory drawing which shows an example of the display content of the display part of the electromagnetic wave correction timepiece concerning one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Fixed reception part 102 Compulsory reception part 103 Change part 104 Present location time information storage part 105 Reception time determination part 106 Display part 500 Radio wave correction clock 501 Operation control part 502 Antenna 503 Reception part 506 Code determination part 507 Reception condition determination part 508 Reception station Selection unit 509 Drive unit 510 Reference signal generation unit 511 Counter unit 512 Display drive unit 513 Display unit 514 External input unit 515 Control program storage unit (ROM)
516 Control information storage unit (RAM)
521 Reception data storage unit 522 Timing data storage unit 523 Reception status storage unit 524 Reception history storage unit 525 Forced reception station storage unit 526 Scheduled reception station storage unit 527 Scheduled reception mode storage unit

Claims (16)

In a radio-controlled timepiece that receives a standard radio wave including a standard time information signal and corrects the time based on the standard time information signal applied to the received standard radio wave,
A scheduled reception means for receiving the standard radio wave at a predetermined time;
Forced reception means for receiving the standard radio wave according to an instruction from an operator;
Changing means for changing the content of the standard radio wave reception process by the scheduled reception means when the standard radio wave reception process is performed by the forced reception means;
A radio-controlled watch characterized by comprising:   2. The change unit according to claim 1, wherein when the standard radio wave reception process is performed by the forced reception unit, the change unit increases or decreases the frequency of reception of the standard radio wave by the scheduled reception unit. Radio correction clock.   When the standard radio wave reception process is performed by the compulsory reception unit, the changing unit sets the frequency of reception of the standard radio wave by the scheduled reception unit based on the reception status of the standard radio wave by the scheduled reception unit. The radio-controlled timepiece according to claim 1, wherein the timepiece is increased or decreased.   The said change means changes the reception time of the said standard radio wave by the said scheduled reception means, when the reception process of the said standard radio wave is made | formed by the said forced reception means. Radio wave correction watch described in one. Current location time information storage means for storing information on the time of the current location;
A reception time determining means for determining a time for receiving the standard radio wave based on the information stored by the current location time information storage means;
With
The scheduled reception means receives the standard radio wave at the reception time determined by the reception time determination means,
When the standard radio wave is received by the compulsory reception means, the changing means indicates the current time of the current location related to the information stored in the current location time information storage means by the standard radio wave received by the compulsory reception means. The radio-controlled timepiece according to claim 4, wherein the time is changed to a time based on the time. At least one of the scheduled reception unit and the forced reception unit has a function of receiving a plurality of the standard radio waves in a predetermined order,
The changing means changes the order of reception of the standard radio waves by at least one of the scheduled reception means and the forced reception means when the standard radio wave reception process is performed by the forced reception means. The radio-controlled timepiece according to claim 1. In a radio-controlled timepiece that receives a standard radio wave including a standard time information signal and corrects the time based on the standard time information signal applied to the received standard radio wave,
A fixed time receiving means for receiving the standard radio wave at a predetermined time;
A radio-controlled timepiece which prohibits reception of the standard radio wave by the scheduled reception means when an operation of changing a display time by an operator is performed.   After the operation of changing the display time by the operator is performed, when the standard time is returned by the operation of changing the display time, the prohibition of reception of the standard radio wave by the scheduled reception unit is canceled. The radio-controlled timepiece according to claim 7. Comprising a forced receiving means for receiving the standard radio wave according to an instruction from the operator;
9. The radio-controlled timepiece according to claim 7 or 8, wherein when the standard radio wave reception process is performed by the forced reception unit, the prohibition of the reception of the standard radio wave by the scheduled reception unit is canceled. In a radio-controlled timepiece that receives a standard radio wave including a standard time information signal and corrects the time based on the standard time information signal applied to the received standard radio wave,
A scheduled reception means for receiving the standard radio wave at a predetermined time;
Forcibly receiving means for receiving the standard radio wave according to an instruction from the operator,
When a predetermined operation is performed by an operator, reception of the standard radio wave by the scheduled reception means is prohibited,
A radio-controlled timepiece that cancels the prohibition of reception of the standard radio wave by the scheduled reception means when the reception process of the standard radio wave is performed by the forced reception means.   The radio-controlled timepiece according to claim 10, wherein the predetermined operation by the operator is a display time changing operation.   The radio-controlled timepiece according to claim 7, further comprising display means for displaying that reception of the standard radio wave by the scheduled reception means is prohibited.   An electronic apparatus comprising the radio-controlled timepiece according to claim 1. In a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the standard time information signal applied to the received standard radio wave,
A forced reception step of receiving the standard radio wave according to an instruction from an operator;
When the standard radio wave reception process is performed by the forced reception process, a change process for changing the content of the standard radio wave scheduled reception process;
Based on the content changed by the changing step, a scheduled reception step for receiving the standard radio wave on a regular basis,
The time correction method characterized by including. In a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the standard time information signal applied to the received standard radio wave,
Including a scheduled reception step of receiving the standard radio wave at a predetermined time,
A time correction method for prohibiting reception of the standard radio wave by the scheduled reception step when an operation of changing a display time by an operator is performed. In a time correction method for receiving a standard radio wave including a standard time information signal and correcting the time based on the standard time information signal applied to the received standard radio wave,
A scheduled reception step of receiving the standard radio wave at a predetermined time;
Receiving the standard radio wave according to an instruction from the operator, and
When the operator performs a predetermined operation, the reception of the standard radio wave by the scheduled reception process is prohibited,
The time correction method of canceling the prohibition of reception of the standard radio wave by the scheduled reception step when the standard radio wave reception process is performed by the forced reception step.

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