JPH10332852A - Electronic time piece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compulsorily operate a stepping rate adjustment circuit immediately after rewriting a memory and enable quickly rate measurement by providing a forced operation circuit compulsorily operating the rate adjustment circuit. SOLUTION: An oscillation circuit 1 oscillates a reference signal, a frequency division circuit 2 divides frequency of the signal of the oscillation circuit 1 and a rate adjustment circuit 3 adjusts the rate by logically operating the frequency division circuit 2. A timing forming circuit 4 determines the operation timing of the rate adjustment circuit 3 and a waveform shaping circuit 5 forms a signal for motor driving using the signal of the frequency division circuit 2. When a memory rewriting circuit 10 rewrites a memory 9, a forced operation circuit 11 receives a rewriting completion signal of a memory rewriting circuit 10 and compulsorily operates the rate adjustment circuit 3 regardless of the timing forming circuit 4. By this, a rate adjustment based on the contents of the new memory 9 is done immediately after writing in the memory 9 and rate measurement can be quickly performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to rewriting of memory in an electronic timepiece.

[0002]

2. Description of the Related Art First, a configuration of a conventional electronic timepiece that rewrites a memory will be described with reference to FIG. 3 using an example in which a rate is controlled by a memory. FIG. 3 is a circuit block diagram of a conventional electronic timepiece that rewrites memory, wherein 1 is an oscillation circuit that oscillates a reference signal, 2 is a frequency divider that divides the signal of the oscillation circuit 1, and 3 is a divider. A rate adjusting circuit for logically operating the peripheral circuit 2 to adjust the rate, and 4 is a timing creating circuit for determining the operation timing of the rate adjusting circuit 3. Reference numeral 5 denotes a waveform shaping circuit for generating a motor driving signal using the signal of the frequency dividing circuit 2;
, A motor driven by the motor drive circuit 6, 7a a coil constituting the motor, and 8 a pointer operated by the motor 7. . Reference numeral 9 denotes a memory for determining a rate adjustment amount of the rate adjusting circuit 3. Reference numeral 10 denotes a memory for receiving data from outside the watch using an induced voltage of the coil 7a when a magnetic field is generated outside the watch. This is a memory rewriting circuit for rewriting the contents to the received data.

Next, the configuration of an apparatus for rewriting memory will be described with reference to FIG. 12 is a rewriting device oscillation circuit, 13 is a receiving coil for detecting a change in the magnetic field generated when the motor 7 operates, and 14 is a fixed time after the receiving coil 13 detects the change in the magnetic field by the motor 7. This is a transmission timing creation circuit that counts. 15 is an input circuit for inputting a rate adjustment amount, and 16 is an input circuit 1
5 is a transmission data generation circuit for converting data of No. 5 into a binary number, 17 is a transmission control circuit for transmitting data of the transmission data generation circuit 16 in accordance with the timing of the transmission timing generation circuit 14, and 18 is a transmission control circuit 17 Is a transmission coil for transmitting the signal of the above as a change in the magnetic field.

Next, the operation of a conventional electronic timepiece which performs memory rewriting will be described with reference to FIGS. 2 and 3. FIG. First, a circuit for adjusting the rate will be described. Assuming that the timing created by the timing creation circuit 4 is one minute, for example, the rate adjustment circuit 3 operates once a minute, and resets or sets each of the frequency dividing stages of the frequency dividing circuit 2 based on the contents of the memory 9. , Adjust the rate. Next, a circuit for rewriting the memory 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 creation circuit 14 starts. The transmission data generation circuit 16 converts the rate adjustment data input to the input circuit 15 in advance 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 generation circuit 14. Generate and send. On the clock side, the magnetic field generated by the transmission coil 18 is
The data is received by detecting at a. The data received by the coil 7a is written into the memory 9 by the memory rewriting circuit 10, and the rewriting of the memory is completed.

[0005]

However, the rate adjustment circuit 3 adjusts the rate based on the contents of the new memory only after the timing creation circuit 4 operates.
Even if the rate is measured before that, there is no difference from before the memory rewriting. When the rate was adjusted by this method during production, the rate could not be measured at least until the timing of the timing creation circuit 4. An object of the present invention is to solve the above-mentioned problem, and to provide an electronic timepiece in which the rate adjusting circuit 3 is forcibly operated immediately after rewriting the memory 9 and the rate can be measured immediately.

[0006]

According to the electronic timepiece of the present invention for achieving the above object, the rate adjusting circuit 3 is forced to reflect the data to the rate adjusting circuit 3 immediately after rewriting the memory 9. And a forcible operation circuit for causing the operation is performed.

BEST MODE FOR CARRYING OUT THE INVENTION

The configuration of an embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a circuit diagram block diagram of an electronic timepiece according to the present invention, and the same elements as those in FIG. Reference numeral 11 denotes a forced operation circuit for forcibly operating the rate adjustment circuit 3. Next, the operation of the embodiment of the present invention will be described with reference to FIG. When the memory rewriting circuit 10 rewrites the memory 9, the forced operation circuit 11 receives the rewriting end signal of the memory rewriting circuit 10,
The rate adjusting circuit 3 is forcibly operated regardless of the timing of the timing generating circuit 4. As a result, the rate adjustment based on the new memory content is performed immediately after writing to the memory, and the rate can be measured immediately. What is controlled by the memory need not be the rate, but may be the alarm frequency or the fitted value of the sensor.

[0008]

As described above, according to the present invention, the hands are moved by the rate based on the new memory contents immediately after rewriting the memory, so that the adjusted rate can be measured immediately.
Effective during production.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram of an electronic timepiece showing one embodiment of the present invention.

FIG. 2 is a circuit block diagram of a memory rewriting device showing one embodiment of the related art.

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 (1)

[Claims] 1. A rewritable memory, a memory rewriting means for rewriting a memory without setting a terminal, a control means for changing an amount controlled by the written memory, and a means for periodically operating the control means An electronic timepiece having a timing creating means, wherein after the memory is rewritten by the memory rewriting means, a forced operation means for immediately reflecting the result on the control means irrespective of the timing of the timing creating means is provided. Electronic clock.