JPH05150058A - Control system for clock - Google Patents

Abstract

PURPOSE:To automatically rectify an error time of a clock attached to an electronic device. CONSTITUTION:NCU 3 is connected to a line 7, for obtaining a standard time by the time signal of a public telephone line. Control is performed by means of a main control part 1, and a beginning condition is decided by means of a timer 2. After connecting to the line, call of dial pulse is performed for the time signal of No. 117, and voice data of a standard time is input to a voice data processing part 4 with NCU 3 so as to recognize the time. The recognized time data is memorized in a memory part 5. For improving correctness of the time, the time is recognized again, compared with the preceedingly memorized hour and minute of the time, and the process is repeated up to coincidence. In the case of same time, the time of a clock control part 6 is set as a standard time. At completion of setting the clock control part 6, connection of NCU to the line is cut off. By setting the timer 2 so as to rectify a time at a certain interval, for example once per a half month, correct time can be always maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece control system, and more particularly to a timepiece control system for controlling the time of a timepiece attached to an electronic device.

[0002]

2. Description of the Related Art In a conventional clock control system for a timepiece attached to an electronic device, a user sets the time of the timepiece by using a switch or a command for setting, and is used for checking the time and a timer function. It was like this.

[0003]

As described above, in the conventional clock control system attached to electronic equipment, the user has to set the time with a switch for setting, and the time control system of a commercially available timepiece is required. The accuracy has an error of about ± 40 ppm, which is a maximum deviation of 1 minute 43 seconds per month. For this reason, even if the time is set once, the time may deviate due to the passage of time. Even if an attempt is made to use the timer function in that state, there is a drawback in that the timer operates at a time deviated from the designated time.

[0004]

The clock control system of the present invention comprises means for receiving a voice and a transmission signal corresponding to standard time from a public telephone line, and means for storing the time recognized from the voice. It has means for confirming the accuracy of the stored time and means for correcting the time of the timepiece by the transmission signal when the time is correct.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.

The main control unit 1 controls each unit that constitutes the automatic time control. The NCU 3 interfaces with the line 7. The timer unit 2 counts down any set time. The voice data processing unit 4 recognizes the voice of the standard time from the line. The memory unit 5 stores voice data. The clock control unit 6 controls the clock circuit.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG. First, the main controller 1 confirms whether the value of the timer 2 is "0" (step 2).
1). If it is "0", the NCU 3 connects to the line 7, and in order to obtain the data as to what time the standard time is, it issues a dial pulse call to the "117" time signal (step 22).

Next, the main control unit 1 receives voice data at the time input from the NCU 3, for example, "11:50 from now on.
The voice data of "30 minutes is notified" is input to the voice data processing unit 4 to recognize the time, and the time data is stored in the memory unit 5 (step 23). To improve the accuracy of the time, the time is recognized and stored again, but at this time, it is stored in the register of the main controller 1 (step 24).

The hours and minutes of the time stored in the register of the main control unit 1 are compared with the hours and minutes of the time stored in the memory unit 5 (step 25).
The time is recognized again (step 26). This operation is repeated until it is determined that the time comparisons are the same. If it is determined that they are at the same time, the main control unit 1 makes a beep (pip, pip, pip, pawn) after the voice data input from the NCU 3.
Then, an instruction is issued to set the time of the clock control unit 6 to the standard time (step 27). When the setting of the clock control unit 6 is completed, the main control unit 1 gives an instruction to disconnect the line connection of the NCU 3 and ends the process (step 28).

If the standard time is set by the timer 2 so as to be set for a certain fixed period, for example, about once every half month, it is possible to always keep the correct time. Moreover, when the power of the device using the automatic time control method of the present embodiment is turned on, the time can be automatically set by setting the value of the timer 2 to "0". ..

[0011]

As described above, according to the automatic timepiece adjustment control system of the present invention, the time of an electronic device having a timepiece function can always be kept accurate, and an accurate timer operation can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of this embodiment.

[Explanation of symbols]

 1 main control unit 2 timer 3 NCU 4 voice data processing unit 5 memory unit 6 clock control unit

Claims (1)

[Claims] 1. A means for receiving a voice and an outgoing signal corresponding to a standard time from a public telephone line, a means for storing a time recognized from the voice, and an accuracy of the stored time being ensured. A timepiece control system comprising means and means for correcting the time of the timepiece by the transmission signal when the time is accurate.