JPS58148988A - Timepiece fo blind person - Google Patents

Abstract

PURPOSE:To allow a blind person to sense in touch with respective digit of a time and to set time easily by providing plural transmission members representing a one-digit number pattern. CONSTITUTION:When a switch TM is pessed with a finger in touch with transmission members D1-D4, a generating circuit PG generates pulses at specific intervals and the output of a clocking circuit H is selected by a selecting circuit SL and converted by a decoder DE into a braille number pattern output; and a desired plunger is driven by the output of a driving circuit DR. Thus, desired member Di is projected to display a time position in the braille number pattern. Further, when a switch SW is pressed in touch with the members D1-D4, the output of a ring counter RC is supplied to a selecting circuit SL to select a clocking output, which is displayed by the members D1-D4. Then, the switch SE is pressed when a number to be set is displayed to set the desired hour and minute.

Description

[Detailed description of the invention] The present invention relates to a watch for blind people.

Conventional watches for the blind use a pointer type, and the current time can be determined by touching the pointer directly. Therefore, if you touch it with your finger, the IK pointer may move, causing the W# point to shift or become bent.

Therefore, the present invention provides a watch for the blind that tactually conveys the 4) technique of U@ using four temporary assembly members representing a one-digit number pattern in Braille, and allows extremely easy setting of the KwI# time. be.

An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 and 2, D1 to D4 are protrusions constituting transmission members, which are inserted into round holes punched into the front panel of the watch. The protrusions DI, D are driven by a granger '1ePl as shown in FIG. 2, and are pushed out by energization. The protrusions DI, D are similarly driven by a plunger (not shown) K.

TM is a time reading switch, and 81#i is a time hitting switch.

In Figure 3, Q is a crystal oscillator, a DVD frequency divider, '
1 p ” lm + ” l 't Hl. are clock circuits for 1 minute, 1 minute, 1 o'clock, and 10 o'clock, respectively. PG#'il! 8LFi selection circuit, D
B is a decoder, and DR is a plunger drive circuit. R
This is a 4-bit ring counter that constitutes the CFi signal generation circuit, and is used to select each digit of the time when setting the clock. yIfi flip 70 tube circuit, 01~G 凰m
In the Fi gate circuit, dl and d are differentiating circuits, and r and r are resistors. The gate circuits G.~G and Yuki constitute a Norse supply circuit, and the gate circuit Glm-G1- constitutes a control circuit.

Next, we will examine the operation. Normally, the flip-flop circuit 1 is reset, the gate circuit G3 is open, and the gate circuit G1 is closed.

The output of the frequency divider DV is sent to the clock circuit M via the gate circuit Gs.
IK is supplied, and the current time is measured by each clock circuit. At this time, no clock output of any digit is generated from the selection circuit 8L, and all the plungers are in a non-energized state.

Then, when you know the time and it is round, press the switch τM with your thumb while touching the position of the protruding bodies D1 to D4 with your index finger as shown in No. 4!11. This causes a pulse to be generated, and the terminal Ml@+ of the generating circuit PG “l lmM#ml to $-1
Ko IIK, for example width o, s seconds 1 degree OA ks is 0.5
Occurs at intervals of about seconds. When a pulse is generated at the tzu terminal from 1, the output of the clock circuit ml, is selected 8LK.
Therefore, the output is converted into a Braille digit (turn output) by the decoder DI, and the desired plunger is driven by the output of the drive circuit DR.Therefore, the desired 0
1! The objects are collected and the 10 o'clock position is displayed by a number pattern in Braille.

Then, at intervals of 0.5 seconds, the clock circuit ASO output is selected, and approximately 1 o'clock is displayed by the protrusions D1 to D4 in the same manner as described above.

Similarly, the K11i-th lO quantile and 1 minute digit are displayed, allowing the user to tactilely know the current time.

Next, let's talk about the # time setting operation. I will clarify. In the case of ζO, #i, the switch 8K is pressed with the thumb while touching the positions of the protrusions D1 to D4 with the index finger. As a result, the 7-lip frog circuit r is set, and the gate circuit G1 is opened and the gate circuit G1 is closed, and a pulse is generated from the differentiator circuit d, and the clock circuit MI IM + Hl p H
Ill is reset.

On the other hand, due to the above-mentioned suppression of the switch 8m, one pulse is generated from the differentiating circuit dI, the frequency divider I)V is reset, and an output from the terminal RtK of the ring counter RC is generated to open the gate circuit GM-. Gate circuit G11K is frequency divider DV
For example, a pulse with a period of 1 second is generated, and this pulse is supplied to the clock circuit H1, which clocks alternate KOs and 1s with a period of 1 second.

On the other hand, the output from the terminal R1 of the ring counter RC is supplied to the selection circuit '8LK via the gate circuit 01m, and the output of the clock circuit H1 is selected, and its contents are highlighted.
Displayed by 4. Then, when the desired value is displayed, the switch 8I is pressed with the thumb. For example, if you want to set it to 12:00 I, press the switch 8m when 1 is displayed, since the 10 hour position is 1.

As a result of this, the ring counter RC is increased by one, the output from the terminal R1 is stopped, and an output is generated at the terminal R. In this way, 1 is set in the clock circuit HI@, and at the same time, a pulse with a period of 1 second is supplied to the clock circuit HIK via the gate circuit G11. The timing subpath H is determined by the output from the terminal R.
The output of 1 is selected by the selection link fiL. Timing circuit H1
measures 0, 1.2 sequentially by the pulse from the frequency divider DV, the desired value 2 is measured and displayed, and the EMO switch 81 is pressed. As a result of this K, 1 is set in the clock circuit H*, an output from the terminal RsK of the ring counter RC is generated, and in the same way, the clock circuit ' m Ka of the lO quantile is set. Next, when an output is generated from the terminal R4, the gate circuit G- and the gate circuit G- are opened.

Therefore, when the clock circuit MIKO is set, the differential pulse generated by the operation of the switch 8B at the time of right is supplied to the ring counter RCK via the gate circuit G-, and the ring counter RCK is reset.

In this way, 12 o'clock I minute is set.

When the above setting operation is completed, the switch TMt- is pressed, and this contact signal resets the clip-flop circuit 1 via the gate circuit G1, and also resets the frequency divider DV, returning to the normal timekeeping state.

At the same time, the pulse generation circuit PG is operated by the above-mentioned suppression of the switch τM, and the contents of each time measurement circuit are sequentially read out, thereby making it possible to confirm the set time.

As described above, the Kw# clock can be easily set by simply touching the protrusion with the index finger and pressing the switch BXf with the thumb.

Since the 1/1% switch 8E is located at the lower left part of the clock frame, the forefinger can be operated with the normal positional relationship with the thumb, making it very easy to operate.

Note that if an alarm set switch is added, the alarm time can be set in the same manner as described above, so the above configuration can easily be provided with an alarm function.

E9 In the above embodiment, a protruding body was used as the transmission member, but the present invention is not limited to this, and a vibrating body or the like may also be used.

As described above, according to the present invention, the digital time can be tactually known with an extremely simple configuration, and the time can be easily set using a single setting switch. As a result, an alarm function can be easily added.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG.
1 is a logic circuit diagram showing an example of the configuration of the 41-cut ff1k, gamaa path, and Figure 4 is an explanatory diagram showing the position of the finger when determining the time. D1-D4...Transmission member TM...Sequential output switch
8E...Setting switch M,, Ml--"l5H1-
・・Time measurement circuit 8L・・Selection circuit PGe・Pulse generation circuit RC・・Signal generation circuit G-~G11・・Pulse supply circuit 01m-()t-・・Control circuit. Applicant Seiko Co., Ltd. Agent Patent Attorney Mogami

Claims (1)

[Claims] There are four transmission members for tactilely transmitting a single-digit number using a number pattern in Braille, a clock circuit that measures the time, a time readout switch, and a time readout switch that allows each digit of the timekeeping circuit to be read by operating the readout switch. A selection circuit that sequentially selects the time measurement output, a drive circuit that vibrates the transmission member based on the time measurement output from the selection circuit, a time setting switch, and a time setting switch that generates different selection signals when the setting switch is operated. a signal generation circuit that selects each digit of the clock circuit; a pulse supply circuit that supplies pulses of a constant period to the selected digit of the clock circuit; and a pulse supply circuit that selects the clock output of the selected digit of the clock circuit. A watch for the blind consisting of a control circuit that allows selection by the circuit.