JP3681860B2 - Electronic clock - Google Patents

Description

[0001]
[Technology to which the invention belongs]
The present invention relates to memory rewriting in an electronic timepiece.
[0002]
[Prior art]
First, the configuration of a conventional electronic timepiece that performs memory rewriting will be described with reference to FIG. 2 using an example in which the rate is controlled by a memory.
FIG. 2 is a circuit block diagram of a conventional electronic timepiece that performs memory rewriting. 1 is an oscillation circuit that oscillates a reference signal, 2 is a frequency divider circuit that divides the signal of the oscillation circuit 1, and 3 is a frequency divider. A rate adjustment circuit that logically operates the peripheral circuit 2 to adjust the rate, and 4 is a timing generation circuit that determines the operation timing of the rate adjustment circuit 3.
Reference numeral 5 denotes a waveform shaping circuit that creates a motor driving signal using the signal of the frequency dividing circuit 2, 6 denotes a motor driving circuit for driving the motor using the signal of the waveform shaping circuit 5, and 7 denotes a motor. A motor driven by the drive circuit 6, 7 a is a coil constituting the motor, and 8 is a pointer operated by the motor 7.
Reference numeral 9 denotes a memory for determining a rate adjustment amount of the rate adjustment circuit 3. Reference numeral 10 denotes data received from the outside of the watch using an induced voltage of the coil 7 a when a magnetic field is generated outside the watch. It is a memory rewriting circuit for rewriting the contents to the received data.
[0003]
It will now be described with reference to FIG. 3 the configuration of an apparatus for performing memory rewrite.
Reference numeral 12 denotes a rewriting device oscillation circuit, reference numeral 13 denotes a receiving coil that detects a change in magnetic field generated when the motor 7 operates, and reference numeral 14 denotes a certain time after the receiving coil 13 detects a change in magnetic field by the motor 7. This is a counting timing generation circuit. Reference numeral 15 denotes an input circuit for inputting a rate adjustment amount, reference numeral 16 denotes a transmission data generation circuit for converting the data of the input circuit 15 into a binary number, and reference numeral 17 denotes a transmission data generation circuit in accordance with the timing of the transmission timing generation circuit 14. Reference numeral 18 denotes a transmission control circuit for transmitting 16 data. Reference numeral 18 denotes a transmission coil for transmitting a signal from the transmission control circuit 17 as a change in magnetic field.
[0004]
Next, the operation of a conventional electronic timepiece for rewriting memory will be described with reference to FIGS.
First, a circuit that adjusts the rate will be described. If the timing created by the timing creating circuit 4 is, for example, 1 minute, the rate adjusting circuit 3 operates once per minute, and resets or sets the frequency dividing stages of the frequency dividing circuit 2 based on the contents of the memory 9. , Adjust the rate.
Next, a circuit that performs memory rewriting will be described. When the motor 7 is driven by a signal from the motor drive circuit 6, a magnetic field is generated. The change in the magnetic field is detected by the reception coil 13 of the memory rewriting device, and the transmission timing generation circuit 14 is started. The transmission data creation circuit 16 converts the rate adjustment data inputted in advance to the input circuit 15 into binary data, and the transmission control circuit 17 generates a magnetic field by the transmission coil 18 in synchronization with the timing of the transmission timing creation circuit 14. Generate and send. The watch side receives data by detecting the magnetic field generated by the transmission coil 18 with the coil 7a. Data received by the coil 7a is written to the memory 9 by the memory rewriting circuit 10, and the rewriting of the memory is completed.
[0005]
[Problems to be solved by the invention]
However, the rate adjustment circuit 3 performs the rate adjustment based on the contents of the new memory after the timing generation circuit 4 operates, and even if the rate is measured before that, there is no change from before the memory rewrite. . When the rate adjustment is performed by this method at the time of production, the rate cannot be measured at least until the timing of the timing generation circuit 4.
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide an electronic timepiece in which a rate adjustment circuit 3 is forcibly operated immediately after rewriting a memory 9 and a rate can be measured immediately.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the electronic timepiece of the present invention is provided with a forcible operation circuit for forcibly operating the rate adjustment circuit 3 in order to reflect the data in the rate adjustment circuit 3 immediately after the memory 9 is rewritten. It is characterized by that.
DETAILED DESCRIPTION OF THE INVENTION
[0007]
The configuration of the embodiment of the present invention will be described below with reference to FIG.
Figure 1 is a circuit diagram block diagram of an electronic timepiece according to the present invention, it will be assigned the same numerals to the same elements as in FIG. 2 will be omitted.
Reference numeral 11 denotes a forcible operation circuit for forcibly operating the rate adjusting circuit 3.
Next, the operation of the embodiment of the present invention will be described with reference to FIG.
When the memory rewrite circuit 10 rewrites the memory 9, the forcible operation circuit 11 receives the rewrite completion signal from the memory rewrite circuit 10 and forcibly operates the rate adjustment circuit 3 regardless of the timing of the timing generation circuit 4. As a result, the rate adjustment based on the new memory contents is performed immediately after the memory is written, and the rate can be measured immediately.
What is controlled by the memory does not need to be a rate, but may be an alarm frequency or a sensor fitting value.
[0008]
【The invention's effect】
As described above, according to the present invention, the hands are moved at the rate based on the new memory contents immediately after the memory is rewritten, so that the adjusted rate can be measured immediately, which is effective during production.
[Brief description of the drawings]
FIG. 1 is a circuit block diagram of an electronic timepiece showing an embodiment of the present invention.
FIG. 2 is a circuit block diagram of a memory rewriting apparatus showing a conventional example.
FIG. 3 is a circuit block diagram of an electronic timepiece showing a conventional example.
[Explanation of symbols]
3 Rate adjustment circuit 4 Timing creation circuit 9 Memory 10 Memory rewrite circuit 11 Forced operation circuit

Claims (2)

Rewritable memory, memory rewrite means that receives data from outside the watch and rewrites the memory, control means that changes the amount controlled by the written memory, and timing generation for operating the control means periodically An electronic timepiece having means for providing an electronic operation characterized in that after the memory is rewritten by the memory rewriting means, forcible operation means is provided for immediately reflecting the result on the control means irrespective of the timing of the timing creating means. clock. It has a motor that drives the pointer, and the memory rewrite means receives data from outside the watch using the induced voltage generated in the coil constituting the motor by a magnetic field outside the watch, and converts the contents of the memory into the received data 2. The electronic timepiece according to claim 1, wherein the electronic timepiece is rewritten.

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