JPS6059557B2 - alarm clock - Google Patents

Description

[Detailed Description of the Invention] The present invention is an alarm clock in which a desired sound is stored in advance and the stored sound is output when the alarm setting time arrives, in which a light emitting element is turned on to indicate a state in which a sound can be input. The present invention relates to an alarm clock that can reliably store any voice without causing any audio to be stored within a predetermined period of time by displaying the same.

Traditionally, alarm clocks have been activated by a buzzer, a bell, or by the reproduction of a fixed language memorized by the manufacturer of the clock.

Such alarms are uniform, and when used in alarm clocks, for example, they cannot be used as alarms that meet the tastes of most consumers, and they cannot be expected to wake up comfortably or reliably. On the other hand, in recent years PCM (Pulse Code Module)
A voice synthesis or voice-to-digital conversion technology called ration) is attracting attention, but this PCM samples an analog voice signal every certain clock and converts it into an A-
An audio signal can be reproduced by D-converting, sequentially storing this digital amount in a memory, and conversely, sequentially reading out the stored contents of the memory and performing D-A conversion.

Based on the sampling theorem that the upper limit of the frequency at which voice recognition can be performed is 4KH2, this is 11 (2 × 4KH2) ■ 125μ
Since it is time-series information that can be sampled every S, it requires a large memory capacity, but recent advances in semiconductor technology have led to larger memory capacities and lower costs, and there are prospects for it to be used in alarm clocks. Summer. In view of the above reasons, the present invention focuses on the organic combination of speech synthesis or speech digital conversion technology and a clock, and the present invention focuses on organically combining speech synthesis or speech digital conversion technology with a clock. A comfortable and reliable alarm clock that can memorize a voice and output it as a voice at a desired time, and also a memory by lighting up and displaying a light emitting element during a predetermined clock that can input voice. To provide an alarm clock capable of storing arbitrary sounds without causing omission of sounds that should be played.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In the figure, 1 is an alarm clock circuit, a time reference frequency crystal oscillator 2, a count circuit 3 that performs oscillation, frequency division, and time counting with the oscillator 2, and a count circuit 3 that counts the current time. A time setting circuit 4 for switching the display mode of the alarm setting time and storing the alarm setting time, a key switch 5 for setting the time, a display section 6 for displaying the current time or the alarm setting time, and the current time and time setting for the counting section 3. A comparator 7 compares the alarm setting time stored in the circuit 4 and emits a signal when they match, and receives the signal emitted by the comparator 7 or the signal from the timing circuit 16 of the digital signal converting means 9, which will be described later, and performs various operations. The control circuit 8 includes a control circuit 8 that issues control signals.

9 is a digital signal conversion means for an arbitrary audio input signal, which includes a microphone 10 for inputting an audio signal, and an amplification circuit 11 for amplifying the output of the microphone 10. A sampling circuit 12 that samples the output of the amplification circuit 11 at certain time intervals, an A-D conversion circuit 13 that performs A-D conversion of this sampled audio input signal, and these circuits 11, 12, 1.
The power supply circuit 1 supplies the operating voltage of 3. When a switch 15 for inputting an arbitrary audio signal receives a signal from either the control circuit 8 or the closing of the switch 15, the power supply circuit supplies power only for a predetermined period of time. 1. A timing circuit 16 that operates a control circuit 8 and a clock signal generation circuit 17, which will be described later.
3 and a clock signal generation circuit 17 that supplies a reference frequency.

In this example, timing circuit 16 is R6. It's time to wake up. In order to input and output a voice at a desired time, the clock signal generation circuit 17 generates a frequency of 8 kHz to enable voice recognition. 18 is digital signal conversion means 9
16 memory means for storing the output of the digital signal;
It consists of memories 19, 20, . . . , 21 of Kb1t and has a capacity of 320 Kbit, and is sequentially memorized by receiving chip enable signals, address signals, read and write designation signals by the control circuit 8.

In this case, the audio signal is sampled at 8KHz, and each sampling is converted to an 8-bit digital amount, so for example, R6. It's the clock that wakes you up. There is a sound of 4
If it is in seconds, 8 bits x 8 x 103 x 4 seconds = 2
If audio is input for the entire 5 seconds, a memory capacity of 320 Kbit will be required.
22 is a sounding means for converting the output of the memory means 18 into an analog signal and outputting it as a sound, and a D-A for converting the memory contents of the memories 19, 20, . . . , 21 read out by the control circuit 8 into analog signals. Conversion circuit 23, amplification circuit 2 that amplifies the analog signal of the D-A conversion circuit 23, that is, the audio signal.
It is composed of a speaker 25 that produces sound from the output of the auxiliary width circuit 24.

Further, in detail, the timing circuit 16 in the digital signal conversion means 9 for any audio input signal is a time constant circuit consisting of two NOR circuits 26, 27, a capacitor 28, and a resistor 29, as shown in FIG. It constitutes a monostable multivibrator. One of the input terminals of the NOR circuit 26 is connected to +Vc, O via the switch 15 and a pull-down resistor R1 which is normally kept at L level, and the other input terminal is connected to the NO
They are respectively connected to the output terminals of the R circuit 27. NOR
Since the input end of the circuit 27 is short-circuited and connected to the time constant circuit, it ultimately functions as an inverter. A NOR circuit 30 functioning as a buffer and a light emitting element 31 such as a light emitting diode are connected to the output end of the NOR circuit 27 which is the output end of the timing circuit 16. To explain the operation of the alarm clock having the above configuration, first, when inputting any voice, the user simply closes the switch 15 and speaks toward the microphone 10.

That is, the timing circuit 16, which receives a signal from the closing of the switch 15, operates each of the circuits 8, 14, and 17 for only 5 seconds. Therefore, the amplifier circuit 11 to which the operating voltage is applied by the power supply circuit 14. Further, the audio signal is converted into a digital signal by a sampling circuit 12 and an A/D conversion circuit 13, which are supplied with a reference frequency of 8 KHz from a clock signal generation circuit 17. Also, the control circuit 8 is the timing circuit 1
When receiving a signal only from memory 6, each memory 19, 20,...
- Specify the write mode of 21, sequentially select each memory 19, 20, . Therefore, it is R6 o'clock. It's the clock that wakes you up. When inputting the voice ``Yo'', the time chart of the timing circuit 16, clock signal generation circuit 17, and memories 19, 20, . . . 21 is as shown in FIG. Like Memories 19, 20,・
. . 21, the digital audio signal is stored in memory. Next, the time at which the stored contents are desired as described above,
For example, when reading out the alarm at 6 o'clock, the alarm setting time 6 o'clock may be stored in the time setting circuit 4 using the key switch 5.

That is, the count circuit 3 counts the current time and records it in the time setting circuit 4. When the stored 6 o'clock matches, the comparator 7 operates and supplies a signal to the control circuit 8.
provides a signal to timing circuit 16. Then, in the same way as described above, the timing circuit 16 that receives the signal operates each circuit 8, 14, 17 for only 5 seconds. When operated in this way, the control circuit 8 receives signals from both the timing circuit 16 and the comparator 7), and in this state, it specifies the read mode of each memory 19, 20, . . . , and controls each memory using the chip enable signal. Memory 19, 20,...21
9, 20,...
...Specify the address within 21. Therefore, each memory 19, 2
The memory contents of 0, . Also, focusing on the light emitting element 31, if you close the switch 15 to input any audio now, the input terminal of the NOR circuit 26 will be connected to the 6
6W' level increases), and the output becomes "°L" level.

Therefore, the capacitor 28 is charged through the resistor 29, and the input of the NOR circuit 27 gradually rises, and the output of the NOR circuit 27 is 4W until the threshold voltage is reached.
'Maintain the level. The time required to reach this threshold voltage is set to 5 seconds by the time constant circuit, and after all, the light emitting element 31 is lit through the NOR circuit 30 during that time. As is clear from the figure, the light emitting element 31 lights up in the same way when the signal from the control circuit 8 is supplied to the timing circuit 16. It's 16:00, which I also remembered.

It's time to wake up. If you want to change the content, close the switch 15 and cover the front of the microphone 10 with your hand for 5 seconds, then close the switch 15 again and press R.
It's 6 o'clock. If you don't wake up, you'll be late. All you have to do is point your finger at the microphone 10. In addition, in the example, 5
Although we have described a device that stores sounds for seconds, if a memory means with a large memory capacity is used, it is possible to store sounds for an even longer period of time, and if the control contents of the control circuit 8 are changed appropriately, different sounds can be stored at different times. Also, a total of three NOR circuits 26, 27,
Although the case using 30 is described above, the present invention is not limited to this. The present invention comprises a digital signal converting means 9 for any audio input signal, a memory means 18 for storing the output of the converting means 9, a sounding means 22 for converting the output of the memory means 18 into an analog signal and outputting it as a sound. and an alarm clock circuit 1 which emits a signal when the current time and the alarm setting time match, and which reads out the memory contents of the memory means 18 based on the signal and outputs the sound from the sound generation means 22. Alternatively, since the light emitting element 31 is connected to the output terminal of the timing circuit 16 provided in the conversion means 9, which determines the output time, the alarm is not a standardized alarm as in the past, but an alarm that suits the consumer's preference. Not only can we provide an alarm clock that allows you to wake up comfortably and reliably, but when you input any voice, the light-emitting element lights up and displays the time when input is possible, so you can easily remember the last part of the voice you want to memorize. If it continues even after the lighting is completed, it is easy to know that that part is missing, and it is therefore possible to provide an alarm clock that can reliably memorize any sound without causing any loss of the sound that should be memorized. .

) Brief Description of the Drawings Figures 1 to 4 show embodiments of the present invention; Figure 1 is a circuit diagram of an alarm clock, Figure 2 is a circuit diagram of a timing circuit and a light emitting element, and Figure 3 is a circuit diagram of a timing circuit and a light emitting element. 4 is a time chart showing the timing circuit, the clock signal generating circuit, and the memory light emitting element 5, and FIG. 4 is a time chart showing the sampling state of the audio signal.

DESCRIPTION OF SYMBOLS 1... Alarm clock circuit, 9... Digital signal conversion circuit for audio input signal, 16... Timing circuit, 18
. . . Memory means, 22 . . Sound generation means, 31 . . . Light emitting element.

Claims (1)

[Claims] 1 Digital signal conversion means for any audio input signal, memory means for storing the output of the conversion means, sound generation means for converting the output of the memory means into an analog signal and outputting it as sound, and a means for converting the current time and the alarm setting time. an alarm clock circuit which emits a signal when a match is made; the alarm clock reads out the memory contents of the memory means based on the signal and outputs it as a sound from the sounding means; An alarm clock characterized in that a light emitting element is connected to the output end of a provided timing circuit.