JPH06258464A - Electronic watch having data transmitting function - Google Patents

Abstract

PURPOSE:To provide an electronic watch equipped with data transmitting function in which communication can be carried out stably with no trouble of voltage induced through driving of pulse motor by transmitting data while stopping the watch and without damaging the clock function by storing an 1Hz signal when the watch is stopped in transmission mode and correcting the time quickly upon finish of transmission mode. CONSTITUTION:A switching circuit 26 switches a converter coil 15a between a transmission circuit 22 and a driving signal generating circuit 13 and when a transmission mode setting means 16 is setting a transmission mode, data is transmitted externally. A1Hz signal is stored upon designation of mode and the time is reset automatically at the end of transmission mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic timepiece having a data transmission function.

[0002]

2. Description of the Related Art Conventionally, as a digital timepiece, an electronic timepiece having an arm computer function for communicating with a personal computer by electromagnetic induction has been commercialized. In the analog timepiece, there has been proposed a pointer-type electronic timepiece that also serves as a coil for a pointer driving converter and receives a standard time signal from an external standard time signal generator to adjust the rate. (For example, Japanese Patent Publication No. 58-7190) In order to receive a standard time signal of 1 second cycle from the outside, this watch sets the reception state by operating an external operation member such as the crown, and at the same time resets the frequency dividing circuit. It waits for the standard time signal to be input. When the first standard time signal is input, the reset of the frequency dividing circuit is released, and the frequency deviation measuring circuit starts counting. When the second standard time signal is input 1 second later, the frequency deviation measured by the frequency deviation measurement circuit is stored in the frequency deviation storage circuit, the automatic rate adjustment is completed, and the frequency is automatically reset after a fixed time. The reset is released and the normal operation is started. That is, in the above operation, an accurate standard time signal of a 1-second cycle supplied from the outside is counted by the internal counter, and the counted value is used as the subsequent 1-second cycle to perform the time-measuring operation. It uses a converter coil for reception. That is, in the above-mentioned operation, an accurate standard time signal of a 1-second cycle supplied from the outside is counted by the internal counter, and the counted value is counted as 1
It is a one-way reception system that performs a timekeeping operation as a cycle of seconds, and a system that also serves as a converter coil and sends a signal to an external device uses a converter coil from the converter coil when driving the pointer to measure the accuracy of the watch. It was a limited field of utilizing leaking magnetic signals, and there was no system for transmitting data.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic timepiece having a data transmission function, which can transmit the data stored in the pointer type electronic timepiece from the coil for the converter to an external device.

[0004]

In order to achieve the above object, the present invention has the following constitution. In a pointer type electronic timepiece that also serves as a pointer driving converter coil and transmits a data signal to the outside, a storage circuit for storing transmission data and a transmission for transmitting the storage data of the storage circuit A circuit, a drive signal generation circuit for generating a pointer drive pulse, a converter drive circuit, a switching circuit for switching and connecting the transmission circuit and the drive signal generation circuit to the converter drive circuit, and a transmission circuit. A transmission mode setting means for setting a mode and a time restoration circuit for storing a pointer driving pulse generated while the transmission mode setting means is setting the transmission mode are provided, and the time is reset by the setting signal of the transmission mode setting means. The switching circuit supplies the stored data from the transmission circuit to the converter drive circuit to transmit the data from the converter coil to the outside, and at the end of the transmission mode, the time Characterized by the fast-forward modifications guidance according to the information of the return circuit.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transmission system of an electronic timepiece with a data transmission function of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a transmission system of a pointer type electronic timepiece having a data transmission function according to the present invention. Reference numeral 1 is a pointer type electronic timepiece having a converter coil 15a for driving a pointer and a correction switch RS which operates in conjunction with a crown 24 for setting a transmission mode. Reference numeral 2 denotes a data receiving device, which includes a receiving coil 31. The data receiving device 2 uses the converter coil 1 when transmitting data from the pointer-type electronic timepiece 1.
A display device is provided for receiving the data electromagnetic signal S40 generated from 5a by the receiving coil 31 and editing and converting the received data.

FIG. 2 is a circuit block diagram of the pointer type electronic timepiece 1 according to the present invention. Reference numeral 11 is an oscillation circuit that uses a crystal oscillator as a reference signal, and 12 is a frequency division circuit that receives the oscillation signal from the oscillation circuit 11 and outputs a 1 Hz signal, a frequency division signal S1, and a fast-forward signal S2. Reference numeral 13 denotes a drive signal generation circuit, which receives the 1 Hz signal from the frequency divider circuit 12 and outputs a pointer drive pulse PM to the converter drive circuit 14 as a signal for driving the motor. Reference numeral 15a denotes a converter coil provided in the converter 15 and is the data receiving device 2
It has a function as a transmission coil for transmitting data to. Reference numeral 23 is a pointer driving device, and 24 is a crown for correcting the time of the pointer driving device 23, which is in the 0 stage position in the normal state. Reference numeral 16 is a transmission mode setting means, which is a correction switch RS that operates in conjunction with the pulling of the crown 24 to the first stage.
And a one-shot circuit 16a which operates when the correction switch RS is turned on and a one-shot signal S3 from the one-shot circuit 16a are inputted to switch and set the mode from the normal fast-forward mode to the transmission mode. 16b and.

A time recovery circuit 17 counts and stores the 1 Hz signal for creating the pointer driving pulse PM while the transmission mode signal S4 is being output from the mode storage circuit 16b. When the 1 Hz signal is input a predetermined number of times, the time recovery signal S6 for switching the mode storage circuit 16b to the normal state fast-forward mode is output. When the fast-forward mode signal S5 is output by switching the mode storage circuit 16b, the time restoration circuit 17 counts until it matches the 1 Hz signal stored in the fast-forward signal S2, and at the same time, fast-forwards in synchronization with the fast-forward signal S2. The drive pulse PF is output. Reference numeral 18 denotes an OR circuit, which receives the pointer driving pulse PM and the fast-forward driving pulse PF and outputs a pointer driving signal S7. Reference numeral 19 denotes a storage circuit composed of a non-volatile memory or the like, which outputs data such as initials of names and rate adjustment amounts written by a known technique using external terminals as storage data S8. Reference numeral 20 denotes a control circuit, which receives the frequency-divided signal S1 and a signal such as a read signal S9 for reading the data stored in the storage circuit 19 by inputting the transmission mode signal S4 from the mode storage circuit 16a. Is output.

Reference numeral 21 is a transmission start signal generating circuit, which outputs a start pulse PS for transmitting data to the data receiving device 2 when the control signal S10 from the control circuit 20 is inputted. A transmission circuit 22 latches the stored data S8 from the storage circuit 19 by a latch signal S11 output from the control circuit 20, and a transmission data pulse PD by a shift signal S12 also output from the control circuit 20. Is output. The transmission data pulse PD and the start pulse PS have a pulse width that does not drive the motor. An OR circuit 27 receives the transmission data pulse PD and the start pulse PS and outputs a transmission data signal S13. 26
Is a switching circuit, which receives the pointer driving signal S7 and the transmission data signal S13 as input, and in the normal state, the pointer driving signal S7.
Is selected, and in the correction state in which the crown 24 is pulled down by one stage, the transmission data signal S13 is selected and output to the converter drive circuit 14. The converter coil 15a has a transmission data signal S1.
When 3 is supplied, a data electromagnetic signal S40 to be transmitted to the data receiving device 2 is generated.

FIG. 3 is a circuit block diagram of the data receiving apparatus 2 according to the present invention. The data receiving apparatus 2 in this embodiment is a data electromagnetic signal S from the pointer type electronic timepiece 1.
40 is a data receiving device having a function of receiving 40, editing and displaying the received data. Reference numeral 31 denotes the receiving coil, which receives the data electromagnetic signal S40 from the converter coil 15a. 32 is a received signal detection circuit,
It is composed of a filter circuit 32a and an amplifier circuit 32b, and receives the data electromagnetic signal S40 from the receiving coil 31 and detects it as a received signal detection pulse PT. A reception state storage circuit 33 outputs a system clear signal S31 for initializing the data receiving device 2 by operating the switch 34. Reference numeral 35 denotes a reception control circuit, which receives the first received signal detection pulse PT as an input and outputs the first received signal detection pulse when the first received signal detection pulse PT is input. P
When T is input for a certain period of time after being input, a reset signal S32 for resetting the reception state storage circuit 33 is output.

Reference numeral 36 is a reception clock generation circuit for generating a reception clock signal S34 for reading the reception signal detection pulse PT by the activation signal S33. A reception signal storage circuit 37 stores the reception signal detection pulse PT by the reception clock signal S34 from the reception clock generation circuit 36 and outputs a reception information signal S35. Three
Reference numeral 8 denotes a display circuit, which is composed of a conversion circuit for receiving and receiving the received information signal S35 from the received signal storage circuit 37, and a drive circuit for driving a display device 39 including an LCD or the like.

Next, the operation of the data transmission system of the pointer type electronic timepiece 1 having the data transmission function in the above configuration will be described with reference to the time chart of FIG. In the normal operation of the pointer type electronic timepiece 1, the crown 24 is at the 0-stage position and the mode memory circuit 16b selects the normal state fast-forward mode. On the other hand, the switching circuit 26 causes the pointer drive signal S7.
Is selected, the pointer drive pulse PM is output to the converter drive circuit 14. The converter drive circuit 14 which receives the pointer driving pulse PM receives the converter drive signal S
When 11 is output and supplied to the converter coil 15a, the converter coil 15 drives the pointer driving device 23 to display the time by moving the hand for one second. (Timing of time chart t1 in FIG. 4) When the crown 24 is pulled one step to set the transmission mode, the correction switch RS interlocking with the crown 24 is turned on, and the one-shot circuit that constitutes the mode setting means. 16 operates, and the mode memory circuit 16a switches the mode from the normal fast-forward mode to the transmission mode and outputs the transmission mode signal S4.
The drive signal generation circuit 13 is generated by the transmission mode signal S4.
Output of the pointer driving pulse PM is prohibited. (Timing of time chart t2 in FIG. 4)

The control circuit 20 outputs a read signal S9 for reading the data stored in the storage circuit 19 when the transmission mode signal S4 is input. The storage circuit 19 outputs the storage information S8 in response to the read signal S9.
The control circuit 20 then outputs the latch signal S11 and latches the storage information S8 as transmission data in the transmission circuit 22.
The control circuit 20 subsequently outputs a control signal S10 to operate the transmission start signal generation circuit 21 and output a start pulse PS for transmitting data to the data receiving device 2. Further, the control circuit 20 outputs the shift signal S12 for transmitting the transmission data stored in the transmission circuit 22 to the data receiving device 2. The transmission circuit 22 outputs the transmission pulse data PD in response to the shift signal S12. The start pulse PS and the transmission pulse data PD become the transmission data signal S13 in the OR circuit 27 and are supplied to the converter coil 15a via the converter driving circuit 14, so that the converter coil 15a becomes a data electromagnetic wave. Signal S
40 is generated and data is transmitted.

On the other hand, the data receiving device 2 first has the switch 34.
Initialize by the operation. By operating the switch 34, the reception state storage circuit 33 causes the system clear signal S3.
1 is output. The system clear signal S31 initializes the reception signal storage circuit 37 and the display circuit 38 to prepare for receiving the data electromagnetic signal S40 from the pointer type electronic timepiece 1. When the data electromagnetic signal S40 from the pointer type electronic timepiece 1 is received in this state, the received signal is input to the reception signal detection circuit 32, and the reception signal detection circuit 32 receives the first data electromagnetic signal S40. The detection pulse PT is detected. When the first reception signal detection pulse PT1 is input, the reception control circuit 35 activates the start signal S33.
Is output (timing of time chart t3 in FIG. 4), and the activation clock S33 causes the reception clock generation circuit 36 to generate a reception clock signal S34 for reading the reception signal detection pulse PT. The reception signal storage circuit 37 stores the reception signal detection pulse PT from the reception signal detection circuit 32 by the reception clock signal S34 from the reception clock generation circuit 36, and outputs the reception information signal S35. The received information signal S35 is edited by the display circuit 38 and displayed on the display device 39. That is, when the received information signal S35 is initial, the initial of the owner of the pointer type electronic timepiece 1 is displayed on the display device 39, and when the received information signal S35 is rate adjustment amount data, the pointer type electronic timepiece 1 is displayed. The rate adjustment state set to is displayed.

The pointer type electronic timepiece 1 transmits data,
While the data receiving device 2 is receiving data (between time chart t3 and t4 in FIG. 4), the time restoration circuit 17 counts the 1 Hz signal. The time restoration circuit 17 outputs a time restoration signal S6 when counting the 1 Hz signal a predetermined number of times (here, four times), and the mode storage circuit 16b is switched to the fast forward mode by the time restoration signal S6 and outputs the fast forward mode signal S5. To do. (Time chart t4 in FIG. 4) The time restoration circuit 17 counts until it matches the number of 1 Hz signals (4 times) stored in the fast-forward signal S2 by the fast-forward mode signal S5, and at the same time, fast-forward drives in synchronization with the fast-forward signal S2. The pulse PF for output is output.
(Between time points t4 and t5 in FIG. 4) The fast-forward drive pulse PF passes through the OR circuit 18 to become the pointer drive signal S7, and the fast-forward correction is performed.

In the present invention, the transmission mode is switched to the normal fast-forward mode by the time return signal S6, but the operation of the correction switch RS from the ON state to the OFF state or the control signal S10 of the control circuit 20 is output. It is also possible to cause the control circuit 20 to perform the return operation after a predetermined time has elapsed.

[0016]

As is apparent from the above description, according to the present invention, stable communication can be performed without being disturbed by the induced voltage of the pulse motor drive by stopping the clock and transmitting data. Further, since the 1 Hz signal generated while the clock is stopped in the transmission mode is stored and corrected quickly after the transmission mode ends, communication can be performed without impairing the function as the clock.

[Brief description of drawings]

FIG. 1 is a block diagram of a data transmission system showing an embodiment of the present invention.

FIG. 2 is a block diagram of the pointer type timepiece of FIG.

FIG. 3 is a block diagram of the data receiving apparatus of FIG.

FIG. 4 is a time chart showing the operation of the embodiment of the present invention.

[Explanation of symbols]

 1 ... pointer type electronic timepiece 2 ... data receiving device 13 ... drive signal generating circuit 16 ... transmission mode setting means 15a ... converter coil 17 ... time recovery circuit 19 ... Storage circuit 22 ・ ・ ・ Transmission circuit 26 ・ ・ ・ Switching circuit 31 ・ ・ ・ Reception coil 32 ・ ・ ・ Reception signal detection circuit 35 ・ ・ ・ Reception control circuit 37 ・ ・ ・ Reception signal storage circuit

Claims (1)

[Claims] 1. In a pointer type electronic timepiece that also serves as a pointer driving converter coil and transmits a data signal to the outside, a storage circuit for storing transmission data and a storage data of the storage circuit. A transmission circuit for transmitting, a drive signal generation circuit for generating a pointer drive pulse, a converter drive circuit, and a switching circuit for connecting the transmission circuit and the drive signal generation circuit to the converter drive circuit. A switching circuit, a transmission mode setting means for setting the transmission mode, and a time restoration circuit for storing a pointer driving pulse generated while the transmission mode setting means is setting the transmission mode are provided. In response to the setting signal, the switching circuit supplies the stored data from the transmission circuit to the converter drive circuit to transmit the data from the converter coil to the outside, and the transmission mode ends. An electronic timepiece with a data transmission function, wherein the hands are fast-forward corrected according to the information of the time recovery circuit.