JPS5925036Y2 - Display device that allows the clock to be attached or detached - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a display device in which a watch can be attached or detached.

Generally, portable clocks have small displays, so when used as table clocks at home, the display is difficult to read.

Therefore, the present invention aims to eliminate the drawbacks of the conventional watch by making it possible to attach and detach the watch to a display device having a larger display area than that of a small watch, and display a large display when the watch is worn.

An embodiment of the present invention will be described below.

In FIGS. 1 and 2, numeral 1 is a small portable watch, and numerals 2, 3, and 4 are a time adjustment switch, a display changeover switch for current time and estimated time, and a ringing stop switch, respectively.

Electrodes P1...P3o are arranged on the back of the watch 1, and the signals supplied to these will be described later.

In FIG. 3, 5 is a display device, and the display section 1 of the watch 1
It has a display section 5a that is sufficiently larger than the display section 5a.

The display device 5 has a storage section 6 in which the watch 1 can be removably stored.
It is a formality.

The inner surface of the storage section 6 contains electrodes P1...P of the watch 1.
Conductive material q1...P3 facing each of 3o
o is arranged.

Reference numeral 7 denotes a fixing frame, which fixes the watch 1 within the storage section 6.

A protrusion 7a is formed on the upper side of the fixed frame 7, and this is to be joined to a groove 6a formed in the storage section 6.

Further, a click locking portion 7b is provided at the lower side of the fixed frame 7.

5 and 6 show the circuit configurations of the timepiece 1 and the display device 5. FIG.

In the figure, 8 is a crystal oscillator, 9 is a frequency divider, 10 is a counter for measuring time, and 11 is a counter for setting a standard time.

12 and 15 are decoders, 14 is a selection circuit consisting of a gate circuit, 15 is a comparison circuit, and 16 is an alarm sound generator.

17 is a control circuit consisting of a gate circuit, and the decoder 1
This controls the passage of the second output.

18...23 are gate circuits, 24 is an inverter, and 25...29 are resistors.

30.31 is a voltage level converter. 32 is a drive circuit for the display section 5a, and 33 is an alarm sound generator.

In FIG. 6, 34 is a rechargeable battery that is the power source for the watch 1, 35 is a diode, 36 is a commercial power source that is the power source for the display device 5, 37 is a rectifier circuit, and 38 is a transmission gate.
The output voltage serves as a power source for the circuit configuration of the display device 5 shown in FIG.

39 is a resistance.

Next, the operation will be explained.

First, a case where the watch 1 is removed from the storage section 6 and used as a portable watch will be described.

At this time, switch 2 in FIG. 3. 4 is assumed to be developed.

The contact between the electrodes P1...P3o of the watch 1 and the conductive materials q1...q3o of the storage section 6 is broken.

Therefore, the electrode I) 30 in FIG. 5 is held at 0'', the gate of the control circuit 17 is closed, and the output of the decoder 12 does not pass through.

On the other hand, the output of the gate circuit 22 is held at "0", so that the output of the counter 10 is passed from the selection circuit 14 via the decoder 12.

Therefore, the current time is displayed on the display section 1a.

When adjusting the time, switch 2 is closed and gate circuits 19 and 18 are opened and closed, respectively.

As a result, the correction pulse from the frequency divider 9 is transmitted to the gate circuit 19.
．． 20, and the contents of the counter 10 are fast-forwarded.

Further, when setting the reference time, the output of the gate circuit 22 is inverted to "1" by closing the switch 3.

As a result, the gate circuits 19 and 21 are respectively closed and opened, and the output of the counter 11 passes through the selection circuit 14 via the decoder 13 and is displayed on the display section 1a.

Therefore, by closing switch 2, gate circuit 21
counter 1 by the correction pulse from frequency divider 9.
Fast forward through step 1 and set the approximate time.

When the current time matches the reference time, the comparison circuit 15
An output is generated from the wake-up sound generating device 16, and a wake-up sound is generated from the wake-up sound generating device 16.

Then, when the switch 4 is closed, the output of the comparator circuit 15 is stopped, and the alarm sound is stopped.

As described above, the clock 1 is used as a portable alarm clock.

On the other hand, at this time, the terminal on the display device 5 side shown in FIG.
6, the transmission gate 38 in FIG. 6 is closed, and the output voltage of the rectifier circuit 37 is cut off by the transmission gate 38.

Therefore, no power is supplied to the circuit configuration of the display device 5 shown in FIG. 5, and the display device 5 is kept in an inoperable state.

Next, the operation when the watch 1 is stored in the storage section 6 of the display device 5 will be explained.

First, to store the watch 1 in the storage section 6, the handle 7C of the fixed frame 7 shown in FIG.

Then, the watch 1 is stored in the storage section 6 and fixed by the fixing frame 7.

As a result, the electrodes P1...P3o of the watch 1 and the conductive material q1
...q30 are in contact with each other.

Electrode P1 in FIG. P3o and conductive rubber q1. ...q
Due to the contact with ao, the terminal is inverted to "1", the transmission gate 38 shown in FIG. 6 is opened, and the output of the rectifier circuit 37 is generated at its output terminals c and d, resulting in the circuit configuration of the display device 5 shown in FIG. Power is supplied to the

On the other hand, since the electrode p31° in FIG. 5 is also inverted to "1", the gate of the control circuit 17 is opened and the output of the gate circuit 22 is inverted to "1", and furthermore, the alarm sound generator 16 is kept in an inactive state. At the same time, the gate circuit 23 opens.

First, when the gate of the control circuit 17 is opened, the output of the counter 10 is supplied to the voltage level converter 30 via the encoder 12 and the control circuit 17, and an output is generated from the drive circuit 32, and the display section 5a displays the signal shown in the third figure. The current time is displayed as follows.

On the other hand, due to the level inversion of the output of the gate circuit 22, the output of the counter 11 is changed to the coder 13 and the selection circuit 14.
The estimated time is supplied to the display section 1a via the display section 1a, and the estimated time is displayed as shown in the third diagram.

Since the current time is displayed in a large size on the display section 5a in this way, the display is easy to read.

By the way, when the current time and the reference time coincide and an output is generated from the comparator circuit 15, the output level of the gate circuit 23 is inverted, and the output level of the voltage level converter 31 causes the alarm sound generator 33 to output a signal from the alarm sound generator 16. The alarm sound is louder than the alarm sound of the alarm.

Also, the electrode p28 in FIG. p29 and conductive material q28,
Due to contact with Q29, the output voltage of rectifier circuit 37 is supplied to battery 34 via resistor 39 and diode 35, and charging is performed.

In the embodiment described above, when the watch 1 is mounted in the storage section 6, the reference time is displayed on the display section 1a of the watch 1, but it is not always necessary to display the reference time.

Further, regarding the wake-up sound, if the volume generated from the wake-up sound generation device 16 is sufficient, there is no need to provide the wake-up sound generation device on the display device 5 side.

As described in detail above, according to the present invention, a small watch can be attached to and detached from the display device, and when the display device is attached, the display section of the display device displays the time sufficiently larger than the clock. As a portable watch,
Alternatively, it can be used in a narrow space, and when worn, it can be used as a table clock or wall clock with a large display, and the display can be easily read from a distance.

Furthermore, there is no need for a timekeeping circuit on the display device side, and the structure is simple.

Moreover, since the power supply of the watch is charged by the power supply of the display device when the device is installed, no special operation is required for charging, and the power supply voltage of the watch can always be kept at a sufficient voltage.
You no longer have to worry about the power turning off when you use your phone.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIGS. 1 and 2 are front and rear views of the watch, respectively, FIG. 3 is a front view of the display device when the watch is worn, and FIG. FIG. 3 is a partially omitted sectional view taken along the line IV--IV, and FIGS. 5 and 6 are electrical circuit diagrams showing the state in which the watch is removed. 1...Clock, 1a...Display section, 5...
...Display device, 5a...Display section, 6...
...Storage part, p1-I)30...Electrode, q1
~q30... Conductive material, 30... Voltage level converter, 32... Drive circuit, 34...
... Rechargeable battery, 35 ... Diode, 36 ... Commercial power supply, 37 ... Rectifier circuit.

Claims (1)

[Scope of utility model registration request] a removable storage section for storing a small clock powered by a rechargeable battery and having an output terminal for timing output externally; a first display section larger than the display section of the clock; a control means for supplying the clock output to the first display section to display the time when the watch is mounted on the storage section; and a charging means for charging the rechargeable battery when the watch is mounted on the storage section. A display device that is equipped with a detachable clock.