JPH0653990U - Clock display - Google Patents

Abstract

(57) [Abstract] [Purpose] With a versatile display device capable of reciprocating display and supporting multi-function display in a display device of a clock that displays timekeeping information with a pointer by a motor that can rotate in forward and reverse directions. To do. [Structure] A data memory 602 capable of setting the maximum position of the display range is provided, and a counter 610 is configured to count up to the above set value, and the coincidence comparison circuit 70 sets the values of the counter 610 and the needle position counter 80. The operation direction signal is output by comparison, and a coincidence signal is output when coincidence occurs. The drive circuit 90 outputs a drive signal to the motor 110 and the needle position counter 80 according to this operation direction signal until a coincidence signal is output.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an analog timepiece that displays timekeeping information by means of motors that can rotate the pointers differently in the forward and reverse directions, and particularly relates to an analog timepiece that supports an arbitrary display mode of reciprocating display.

[0002]

[Prior art]

 Most conventional analog clocks have a circular display, which limits the design. However, with the progress of multi-functional display, it has become possible to display multiple pieces of information on the dial surface by a motor that can rotate forward and backward. Japanese Patent Publication No. 63-17030 discloses a fan-shaped display from such a background. According to this, after moving a certain amount in the forward rotation direction, it was reversed and returned to the initial position.

[0003]

[Problems to be solved by the device]

 In the above fan-shaped analog timepiece, the pointer is rotated at high speed by counting up by the counting circuit 17 corresponding to the hand position counter. Therefore, even when the time is adjusted, it is sent to the maximum display position at one end and the other end at the other end. There was a returning operation, and it took time to send the pointer to an arbitrary position. In addition, there was a lack of versatility in displaying multiple functions with one guide. In order to solve the above problems, the present application makes effective use of the forward / reverse rotation motor and is capable of supporting an arbitrary display range of a fan-shaped display, and the pointer can be moved to an arbitrary position in a short time and multi-function display is possible. The display device is a versatile timepiece.

[0004]

[Means for Solving the Problems]

 The timepiece display device of the present invention is a timepiece display device in which a pointer is displayed by a motor capable of rotating in the forward and reverse directions. The maximum position of the display range can be set by the number of steps of the pointer, and the time is counted by the external signal. A counter, a hand position counter that stores the pointer position, and a coincidence comparison circuit that outputs an operation direction signal to the hand position counter based on the values of the hand position counter and the time counter and outputs a coincidence signal when they coincide. , A drive circuit that outputs a signal for driving the motor to the needle position counter and the motor according to the operation direction signal until the coincidence signal is output, and other setting data or measurement data. There is also a case where a storage circuit for storing is provided, and the output of the clock counter is converted to the output of the coincidence comparison circuit by the switching circuit. Further, a predetermined value may be added to the clock counter or the storage circuit.

[0005]

[Action]

 In the timepiece display device of the present invention, the maximum display position can be arbitrarily set, and the counter counts up to the set value. This counter value and the value of the needle position counter that stores the pointer position are compared and the movement direction signal and the step signal are output until they match, so that the shortest distance can be moved. Therefore, both circular and reciprocal display modes can be supported. Furthermore, by inputting other measurement data into the coincidence comparison circuit in place of the value of the timing counter, multi-function display becomes possible. By adding a predetermined value to these values, the maximum position and the minimum position are set, and it is possible to set any display position in the circular display range.

[0006]

【Example】

 1 is a circuit block diagram of an analog timepiece having an hour / minute hand according to an embodiment of the present invention. The reference signal generation circuit 10 is composed of an oscillator circuit 2 and a frequency divider circuit 4 which divides this output and outputs various reference signals for timing and timing. The correction switch circuit 30 is composed of a minute correction switch 306, an hour correction switch 308, and a predetermined number of pulse output circuits 310, outputs each switch signal, and when the hour correction switch 308 is turned on, moves the hour hand by one hour. Output a predetermined number of pulse signals to advance. In this embodiment, one rotation is 360 steps, and therefore one hour has 30 pulses. The predetermined number of pulse output circuits 310 are composed of three D-type flip-flops (hereinafter referred to as FF) 312, 314, 318, a timer 316, an AND gate 320, an OR gate 326, an inverter 322, and a counter 324. It The counting signal switching circuit 50 is composed of AND gates 502 and 508, OR gates 504 and 510, and a 1 / N frequency dividing circuit 506. The counting signal Φ3 is frequency-divided by 1 / N and output. When operated, it is switched to a high speed Φ 2 signal as a correction signal and output. The control circuit 100 includes a clock counter circuit 60, a coincidence comparison circuit 70, a needle position counter 80, and a drive circuit 90. The time counter circuit 60 includes a data memory 602 in which the maximum value of the display range is stored in the number of steps of the pointer, and a 360-adic (the number of steps for one rotation of the pointer display) for inputting the signal from the time signal switching circuit 50. ) Counter 610 and a coincidence circuit 608 which outputs a coincidence signal for resetting the counter 610 when the value of the data memory 602 coincides with the value of the counter 610. The number of memories 602 is counted.

The hand position counter 80 counts the step signal of the motor and stores the pointer position, and is composed of a 360-ary up / down counter that counts one rotation of the display range. The coincidence / comparison circuit 70 subtracts the values of the counter 610 and the needle position counter 80 from each other, a zero detection circuit 704 which outputs a coincidence signal by detecting the zero of the arithmetic result, and the pointer rotates once. The value of the data memory 706, which stores a value (180 in the present embodiment) that is half the number of steps required for the calculation, compares the value of the data memory 706 with the calculation result, and outputs the H level signal when the calculation result is larger. A comparison circuit 708 for outputting, a data memory 714 for storing the number of steps required for one rotation of the pointer, a match circuit 716 for detecting a match between this value and the value of the data memory 602 and outputting a signal when they match. An AND gate 710 that allows the signal from the comparison circuit 708 to pass only when this coincidence signal is output, and the output and the operation of the arithmetic circuit 702. It is composed of an OR gate 712 which inputs an H-level sign signal output when the result is zero or positive and outputs it as an operation direction signal, and operates from the values of the counter 610 of the clock counter circuit 60 and the needle position counter 80. It outputs a direction signal and a coincidence signal, and controls the up / down count of the needle position counter 80 and the operation direction of the motor 110. The drive circuit 90 is composed of a pulse generation circuit 902 and a waveform shaping circuit 904, and outputs a step signal to the motor 110 according to the operation direction signal until the coincidence signal from the coincidence comparison circuit 70 is generated. It should be noted that the pointer is rotated once by the wheel train damping with respect to the one step stepping of the motor 110.

The control circuit 100a for the hour hand has the same configuration as the control circuit 100 for the minute hand, and will be distinguished by adding a. Therefore, although not shown, the time counter circuit 60a, the coincidence comparison circuit 70a, the hand position counter 80a, and the drive circuit 90a are used to operate the hour hand by the motor 110a in the same manner as the control circuit 100. The clock signal switching circuit 50a divides the output of the two AND gates 508a and 502a, the counter 520 that divides the output signal of the clock signal switching circuit 50 by 12, and the output of the predetermined number of pulse output circuit 310. / N frequency dividing circuit 506a and OR gate 510a. The output from the time signal switching circuit 50 converts the time signal to the time digit of the time digit and the correction signal reduces the number of signals sent by a fixed number of steps to 1 / N steps. It is what is made.

Next, the operation will be described. As a precondition, it is assumed that each pointer and the needle position counter are synchronized by moving the pointer to the 12 o'clock position and then resetting each counter by the 12 o'clock detection switch or reset switch. First, 360 is set to the data memory 602, which is the number of steps required for the pointer to make one rotation, and N of the 1 / N frequency dividing circuits 506 and 506a is set to 1, that is, a circular display will be described. The clock signal switching circuit 50 receives 1/10 Hz as a clock signal from the reference signal generating circuit 10, but the counter 610 of the clock counter circuit 60 counts the frequency without dividing it. Therefore, one step is performed every 10 seconds, and 360 counts means one hour. Now, when the counter 610 advances by one step, in the coincidence comparison circuit 70, the arithmetic circuit 702 subtracts the counter value from the value of the needle position counter 80. Normally, the counter value is larger than the value of the needle position counter 80 by 1, so the sign signal is positive and the H level signal is output as a normal rotation signal via the OR gate 712. Since the zero detection circuit 704 does not match, the L level signal is output. As a result, a pulse is output from the pulse generation circuit 902, a forward step signal is output from the waveform shaping circuit 904 to the motor, and the pointer advances one step. Since this pulse is also input to the needle position counter 80 as an up-count, the calculation result of the calculation circuit 702 becomes zero and a coincidence signal is output from the zero detection circuit 704 to prevent the pulse generation circuit 902 from outputting the next pulse. In this way, the time of minute is displayed.

During the above operation, the counter 610 has a value of 0 and the needle position counter 80 has a value of 359 at the hour of the hour. At this time, the operation result in the coincidence comparison circuit 70 is negative, but the output of the comparison circuit is 359 of the operation result is larger than 180 of the data memory 706, and therefore the normal signal of the H level is passed through the AND gate 710 and the OR gate 712. One step is advanced and the needle position counter 80 has a value of zero. Therefore, the pointer can be moved at the shortest distance without reversing. Further, when the minute correction switch 306 is turned on in the time adjustment, a high speed Φ2 signal is input to the counter 610 via the OR gate 510, but the pointer is driven as in the above-mentioned normal operation. Regarding the hour hand, the same signal as that input to the counter 610 is also input to the time signal switching circuit 50a, and the signal is divided by 12 by the counter 520a. Therefore, one pulse per two minutes or two minute hands When the minute is corrected, one pulse is output to the counter 610a and the hour hand is advanced by one step by the same operation as that of the minute hand control circuit 100. When the hour correction switch 308 is turned on, 30 pulses for one hour are output from the predetermined number of pulse generating circuits 310 and are input to the counter 610a via the AND gate 502a and the aperture 510a. It will be advanced.

Next, a fan-shaped display when 180 is set in the data memories 602 and 602a and N is 2 will be described. At this time, when the counter 610 counts by the number of steps stored in the data memory 602, it is reset by the coincidence circuit 608 and the counter 610 becomes 0 value. At this time, also in the clock signal switching circuit 50, the clock signal is also divided into 1/2 corresponding to the data memory 602 in which the number of steps is set to 1/2, so the counter 610 counts one hour. The number of pulses input to the counter 610 and the number of steps for moving the pointer can be made to correspond to each other. Therefore, the pointer advances in the same manner as above, but since the AND gate 710 of the coincidence comparison circuit 70 is closed, the value of the counter 610 is 0 and the value of the needle position counter 80 is 179 at the hour of the hour. The calculation result of the calculation circuit 702 is negative, and when the pointer is returned by reverse rotation and the value of the needle position counter 80 is down-counted to 0, it stops.

The hour hand also inputs one pulse every 20 seconds from the time signal switching circuit 50 to the time signal switching circuit 50a and outputs it every 12 pulses. Therefore, the hour hand moves one step every four minutes. Further, when the hour correction switch 308 is operated one time, 30 pulses are input through the AND gate 502a but divided by 1/2 and 15 pulses are output, so that the hour hand moves for one hour. . The data memory 602a of the counting counter circuit 60a, the matching circuit 716a and the data memory 714a of the coincidence comparison circuit 70a also serve as the minute hand control circuit 100 and output the output signal of the data memory 602 and the output signal of the coincidence circuit 716, respectively. You may enter it.

Next, an analog timepiece according to the second embodiment of FIG. 2 will be described. The difference from FIG. 1 is that the correction switch circuit 30 is used as the forward / reverse rotation switches 302 and 304, and the clock counter circuits 60 and 60a are used as arbitrary up / down counters set in the data memory 602. The clock counter circuit 60 inputs the signal from the data memory 602 in which the maximum value of the display range is stored in the number of steps of the pointer and the signal from the clock signal switching circuit 50, and responds to the reverse switch 304 to down-count the signal. The counter 610 for 360-adic (the number of steps for one rotation of the pointer display) and the value of the data memory 602 and the value of the counter 610 match, the match signal for resetting the counter 610 and the counter value of the counter 610 A comparator circuit 608 that outputs an H level comparison signal when the output value is larger than the output value, an OSM 612 that generates a single pulse by the generation of the comparison signal, and presets the value of a counter 622, which will be described later, in the counter 610; The delay circuit that delays and outputs the pulse signal from the power supply detection circuit 40 due to the setting of 614, an OSM616 which outputs a single pulse by this output signal, an OSM620 which generates a single pulse in response to the single pulse drop of the OSM616 through an inverter 618, and a signal of the OSM616 as a pre-reset signal. The counter 622 stores the output value of the switching circuit 606 and inputs a single pulse of the OSM 620 to the Φ input terminal to count down, and counts the signals from the clock signal switching circuit 50 by the number of the data memory 602. The counter 610 is reset to zero when the value in the data memory 602 matches with the up-count, and the value obtained by subtracting 1 from the value in the data memory 602 is preset when the counter passes the zero in the down-count. The clock signal switching circuit 50a is composed of an up counter that divides the signal from the clock signal switching circuit 50 by 12, and is down-counted by the signal from the reverse rotation correction switch 304. The time counter circuit 60a can also use the values of the data memory 602 and the counter 622 to display hour and minute hands in the same display range as in the above.

As described above, since the counter 610 of the clock counter circuit 60 is a counter that counts an arbitrary number set in the data memory 602, an arbitrary fan can be obtained by appropriately dividing the frequency of the clock signal. It becomes possible to provide an analog clock with a model display. Further, if the clock signal switching circuit 50 outputs a fixed number of pulses to the counter 610 according to the pulses for counting one day, the calendar mechanism can be provided with an arbitrary fan-shaped display and the pointer can be provided at a predetermined position. It is also possible that the disk is cut out and a certain number of pulses are output to the counter 610 by the hour signal or alarm signal to open and close the display window on the dial surface.

Next, FIG. 3 will be described. In FIG. 3, the display changeover switch circuit 20 is provided in FIG. 1, and the data memory for designating the position of the maximum display range is selected so that the setting can be easily performed. The display changeover switch 20 is composed of a switch 22 for instructing selection of the first display range, a switch 24 for instructing selection of the second display range, and an OR gate 26 for inputting signals of both switches 22 and 24. The clock signal switching circuit 50 includes five AND gates 502, 508, 512, 514, 516, three OR gates 504, 510, 518, a 1/2 divider circuit 520, and a 1/3 divider circuit 522. In response to the switch signal from the display changeover switch 20, the clock signal from the reference signal generating circuit 10 is divided by 1/2 or 1/3 or the clock signal is directly measured by the clock counter circuit 60. In addition to outputting as a signal, when the minute correction switch 306 of the correction switch circuit 30 is on, the high-speed correction signal is converted into the time measurement signal and output to the time counting counter circuit 60.

In the match comparison circuit 70, the signal from the OR gate 26 of the display changeover switch circuit 20 is inverted and input to the AND gate 710 of the match comparison circuit 70 in place of the match signal from the match circuit 716 of FIG. . The clock counter circuit 60 switches and outputs the value of the data memory 602 or 604 according to the signal of the counter 610, the data memories 602 and 604 in which the values of 180 and 120 are stored as the maximum display position, and the switches 22 and 24. A changeover circuit 606 and a comparison circuit 608 which becomes operable when the display changeover switch is operated and compares the output value of the changeover circuit 606 with the value of the counter 610 and resets the counter 610 when they match. It is composed of. Therefore, for example, unless the display changeover switch 20 provided on the substrate is operated, the timing signal is output from the AND gate 512 and the comparison circuit 608 does not operate, so that the counter 610 is in 360-ary and circular display is possible. . When the switch 22 is operated and turned on, the clock signal from the AND gate 514 is divided in half and output to the counter 610, the output of the switching circuit 606 outputs the value of the data memory 602, and the counter 610 advances by 180. It becomes a counter of, and it becomes a fan-shaped display of a half circle. When the switch 24 is operated, it can be used as a 120-degree fan-shaped display in the same manner. By providing the display changeover switch circuit 20 in this manner, a versatile display device can be easily provided.

Next, a description will be given of what is displayed by switching the additional function of FIG. The basic structure is the same as in Fig. 1, so only the differences will be explained. An alarm switch 122 and a measurement switch 124 are provided as function changeover switches, and a changeover circuit 66 for changing over the data of the clock counter circuit 60, the alarm counter 130, and the measurement circuit 160 by this signal and outputting the data to the coincidence comparison circuit 70. The alarm counter 130 inputs the value of the data memory 602 from the clock counter circuit 60 to the comparison circuit 132, and resets the counter 134 when it matches the value of the 360-base counter 134. As the input signal of the counter 134, if the minute correction switch 306 is operated while the alarm switch 122 is on, the φ2 signal is input via the AND gate 136. The measurement circuit 160 includes a sensor circuit 162 for measuring temperature or voltage, an A / D conversion circuit 164 for digitally converting the measurement data, an initial data memory 166 for storing the minimum value of the display range in steps, and an initial data. From the adder circuit 168 that adds the values of the memory 166 and the A / D conversion circuit 164, the latch circuit 170 that latches the value of the adder circuit 168, and the timing circuit 172 that controls these by operating the measurement switch 124. It is configured.

The input of the counter 134a of the alarm counter 130a is the carry signal of the binary counter 140a that divides the output signal of the AND gate 136 by 12 and the signal from the predetermined number of pulse output circuit 310 when the alarm switch 122 is on. Is an output signal from an 8 OR gate 146a which inputs a signal from an AND gate 142a which passes through the 1 / N frequency dividing circuit 144a. Further, the switching circuit 66a switches and outputs the values of the counter 610a and the counter 134a according to the signal of the alarm switch 122. The notification circuit 180 includes a matching circuit 182 for matching and detecting the values of the counter 610 and the counter 134, a matching circuit 184 for matching and detecting the values of the counter 610a and the counter 134a, and an AND gate 186 for inputting both matching signals. It is composed of an FF 188 that holds the output and is reset by the mute switch 126, and a sounding circuit 190 that notifies by this signal.

Next, the operation will be described. The alarm time setting is switched from the time display to the alarm time display by turning on the alarm switch 122. The pointer is stepped until the values of the counters 134 and 134a match, and the alarm time is displayed. At this time, every time the time correction switch 308 is operated, a certain number of pulses of one hour are input to the counter 134a via the 1 / N frequency dividing circuit 144a, and the hour hand moves by one hour. Next, when the minute correction switch 306 is operated, the correction signal Φ2 is input to the counter 134 via the AND gate 136 and the minute hand advances. Further, the hour hand is stepped to the corresponding position by the carry signal of the counter 140a. When the alarm switch 122 is turned off after setting the alarm time in this way, the pointer moves to display the current time until the values match the values of the counters 610 and 610a. After the mute switch 126 is turned off, the Q output of the FF 188 becomes H level while the coincidence signals are being generated from the coincidence circuits 182 and 184 at the same time, and the alarm is issued from the sound generation circuit 190. By turning on the mute switch 126, the FF 188 is reset and the alarm is stopped.

When the measurement switch 124 is turned on, the measured value is displayed from the time display. The data measured by the sensor circuit 162 is sequentially sampled and held by the signal of the timing circuit 172 which inputs this switch signal, and is digitally converted by the A / D conversion circuit 164, and the value of the initial data memory 166 is added by the addition circuit 168. The result is latched by the latch circuit 170 and input to the coincidence comparison circuit 70 via the switching circuit 66. Therefore, the pointer moves to the position corresponding to this value. The initial data memory 166 stores the minimum value of the display range, and the measured data is displayed within the range of the minimum value to the maximum value stored in the data memory 602. This minimum value setting is also possible for the counters 610 and 134 to set a predetermined value by using the reset signal as a preset signal, and when the timekeeping signal of the embodiment is input, the data memory 602 for setting the maximum position is also set. It is necessary to consider adding and setting this amount. As a result, the display range can be further divided to display multiple measurement data. As described above, since the data memory 602 is provided and the counter circuit that counts the set number is used, an arbitrary range can be set and the value of this counter is displayed. Can be provided.

[0021]

[Effect of device]

 According to the present invention, a counter circuit that counts up to a maximum display position that is arbitrarily set by the number of steps in the display range, a needle position counter, and a coincidence comparison circuit that moves at the shortest distance until both values match are provided. Therefore, the display form is not limited to the conventional circular display, and any round-trip display is possible. Furthermore, it can be easily changed by selecting the set value with the display changeover switch. Further, by providing a switching circuit for switching between a storage circuit for storing a plurality of measurement data and outputting the same to the coincidence comparison circuit, a multi-function display device can be obtained, and the set value of the minimum position can be stored in the storage circuit or the counter. Since the display range can be further divided by adding such as presetting to the circuit, it is possible to make the display easy to see even if it is a multi-function display.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of an analog timepiece according to a first embodiment of the invention.

FIG. 2 is a circuit block diagram of an analog timepiece according to a second embodiment of the invention.

FIG. 3 is an analog watch 1 according to a third embodiment of the present invention.
It is a circuit block diagram of a part.

FIG. 4 is a circuit block diagram showing a part of a multifunction analog timepiece according to a fourth embodiment of the invention.

[Explanation of symbols]

 10 reference signal generation circuit 20 display changeover switch circuit 30 correction switch circuit 40 power supply detection circuit 50, 50a timing signal switching circuit 60, 60a timing counter circuit 66 switching circuit 70, 70a coincidence comparison circuit 80, 80a needle position counter 90, 90a drive Circuit 100, 100a Control circuit 110, 110a Motor 120 Function changeover switch circuit 130, 130a Alarm counter circuit 160 Measurement circuit 180 Notification circuit

Claims (5)

[Scope of utility model registration request] 1. A timepiece display device for displaying a pointer by a motor capable of rotating in the normal and reverse directions, wherein a maximum position of the display range can be set by the number of steps of the pointer, and a clock counter for counting the maximum position by an external signal, and a pointer. A hand position counter that stores a position, a match comparison circuit that outputs a motion direction signal to the hand position counter according to the values of the hand position counter and the time counter, and a match signal when they match, and the match signal A display device for a timepiece, comprising: a drive circuit which outputs a drive signal to the hand position counter and a motor according to the operation direction signal until output. 2. A timepiece display device for displaying a pointer by a motor capable of rotating in the forward and reverse directions, wherein a maximum position of the display range can be set by the number of steps of the pointer, and a clock counter for counting the maximum position by an external signal, and a pointer. A hand position counter that stores a position, a storage circuit that stores setting data or measurement data, a function changeover switch, and a switching circuit that switches and outputs the data of the clock counter and the storage circuit in response to this signal, According to the data output from the switching circuit and the value of the needle position counter, an operation direction signal is output to the needle position counter, and a coincidence comparison circuit that outputs a coincidence signal when they coincide with each other and a coincidence comparison circuit until the coincidence signal is output. And a drive circuit for outputting a drive signal to the motor according to an operation direction signal. Clock display device. 3. A display device of a timepiece, in which timekeeping information is displayed by a motor capable of rotating forward and backward in accordance with a timekeeping signal from a reference signal generating circuit, a display changeover switch, and the reference signal generation in response to the display changeover switch. A reference signal from the circuit is appropriately frequency-divided and output as a timekeeping signal, and in response to the operation of the correction switch, a timekeeping signal switching circuit that switches the timekeeping signal to the correction signal and outputs it, and in response to the display changeover switch. To determine the count number, count the signal from the clock signal switching circuit and store the position of the pointer to be displayed, the needle position counter to store the pointer position, the hand position counter and the clock counter. And a coincidence comparison circuit that outputs a coincidence signal when the operation direction signal is output to the needle position counter according to the value of And a drive circuit for outputting a drive signal to the motor according to the operation direction signal until is output. 4. The display device for a timepiece according to claim 1, claim 2 or claim 3, wherein the coincidence comparison circuit displays the calculation result of the time counter and the hand position counter when the display range is circular display. The operation direction signal and the coincidence signal are output by comparing with the value of half the number of steps required to rotate the pointer once, and when the display range is a reciprocal display, the operation direction signal and the coincidence signal are output according to the calculation result. A display device for a timepiece, which is a coincidence comparison circuit. 5. The analog display device according to any one of claims 1, 2, 3, and 4, wherein the clock counter or the storage circuit is added with a predetermined value in the display range. clock.