JPH07221669A - Transceiver - Google Patents

Abstract

PURPOSE:To do without saying a message notifying a transmission termination such as 'please', etc. CONSTITUTION:When a transmission switch 22 is turned from on to off, a sound reproduction circuit 14 is connected with a frequency conversion circuit 12 in a state that an antenna 1 is set to a transmission side and a start signal is supplied. By connecting the sound reproduction circuit 14 with the frequency conversion circuit 12, the output or the output where the message of 'please' by sound synthesis is converted into a sound signal is supplied to the frequency conversion circuit 12. After this sound signal is supplied to the frequency conversion circuit 12, the signal is irradiated in the air via an antenna 1. When the output of the sound signal is terminated, an end signal is outputted from the sound reproduction circuit 14. As a result, a low frequency amplifier circuit 11 is connected with the frequency conversion circuit 12 and the antenna 1 is switched to a reception side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transceiver for commercial radio, amateur radio, specific low power radio and the like.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing the structure of a conventional transceiver. In this figure, 1 is an antenna, 2
Is a transmission / reception switching circuit that switches the antenna 1 between transmission and reception, and its common contact c is connected to the antenna 1.
The fixed contact a is connected to the input end of the high frequency amplifier circuit 3 of the receiving system. The fixed contact b is connected to the output end of the high frequency power amplifier circuit 4 of the transmission system. The common contact c is normally closed on the fixed contact a side. A frequency conversion circuit 5 converts the received signal into an intermediate frequency (Inter Frequency: IF for short). 6 is an intermediate frequency amplifier circuit,
The IF signal is amplified and output.

Reference numeral 7 is a demodulation circuit for demodulating an audio signal from the IF signal, and 8 is a low-frequency amplifier circuit, which amplifies the audio signal output from the demodulation circuit 7 and supplies it to the speaker 9. 10
Is a microphone (hereinafter referred to as a microphone), and 11 is a low-frequency amplifier circuit, which amplifies and outputs the audio signal output from the microphone 10. Reference numeral 12 is a frequency conversion circuit which converts an audio frequency into a transmission frequency and outputs it. The transmission frequency output from the frequency conversion circuit 12 is the high frequency power amplification circuit 4
It is amplified by and is radiated from the antenna 1 to the hollow.

In such a structure, when a transmission switch (not shown) is pressed, the common contact c of the transmission / reception switching circuit 2 is closed to the fixed contact b, and a transmission state is set. And microphone 1
When talking toward 0, the audio signal output from the microphone 10 is amplified by the low frequency amplification circuit 11, converted into a transmission signal by the frequency conversion circuit 12, and further amplified by the high frequency power amplification circuit 4. It is radiated to the hollow through the antenna 1. On the other hand, when the transmission switch is released, the common contact c of the transmission / reception switching circuit 2 is closed to the fixed contact a side and the reception state is set. In the reception state, the reception signal input to the high frequency amplification circuit 3 via the antenna 1 is amplified by the high frequency amplification circuit 3, and then frequency-converted by the frequency conversion circuit 5 to extract IF. Then, after the extracted IF is amplified by the intermediate frequency amplifier circuit 6, the demodulation circuit 7 demodulates the audio signal. Then, after being amplified by the low-frequency amplifier circuit 8, it is output from the speaker 9.

[0005]

By the way, in the above-mentioned conventional transceiver, a message (for example, "please") is sent to notify the other party in the receiving state that the transmission state is changed to the receiving state. There was a problem that I had to say at the end.

Therefore, an object of the present invention is to provide a transceiver which does not need to say a message indicating the end of transmission.

[0007]

In order to achieve the above object, a transceiver according to the present invention comprises a voice signal storage means for storing a predetermined voice signal and a voice input means for inputting a voice from the outside. And a transmission switch operated to convert the voice input from the voice input means into a voice signal and transmit the voice signal, and a voice stored in the voice signal storage means when the operation of the transmission switch is completed. And a transmission means for transmitting a signal. In a preferred aspect, the voice signal storage means stores voice data indicating the end of transmission.

According to the third aspect of the present invention, in a transceiver, there is provided an audio signal output means for outputting an audio signal, a lighting signal output means for outputting a lighting signal for lighting an optical means, the audio signal output means and the audio signal output means. Switching means for switching between the lighting signal output means and the lighting signal is output while the transmission state is maintained when the transmission switch is turned from ON to OFF, and the transmission state is changed to the reception state when the lighting signal output is completed. Control means for performing switching control, lighting signal detection means for detecting the lighting signal from a received signal, and lighting drive means for lighting the optical means when the lighting signal is detected by the lighting signal detection means. It is characterized by having. A transceiver according to a fourth aspect of the invention is characterized in that the transceiver according to any one of the first, second, third, and fourth aspects is applied to a wristwatch.

[0009]

In the present invention, a transmission end signal is transmitted at the end of transmission to notify the other end of the transmission. The transmission end signal includes a message "Please" by voice synthesis, a light emitting diode on the receiving side, and a lighting signal for lighting the lamp. Therefore, it is not necessary to give a message to the other party to notify the end of transmission.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Example 1. FIG. 1 is a first embodiment of a transceiver according to the present invention.
It is a block diagram showing. In this figure, the same parts as those in FIG. 4 described above are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 1, reference numeral 14 denotes a voice storage circuit, which stores, for example, voice data such as "please" in advance. By inputting a start signal, this voice data is read, and voice synthesis is performed to synthesize the voice data. Converted to and output. Then, immediately after outputting the audio signal, the end signal is output. A voice / voice synthesis switching circuit 15 has a common contact c connected to the input end of the frequency conversion circuit 12 of the transmission system, and a fixed contact a connected to the output end of the low frequency amplification circuit 11. In addition, fixed terminal b
Is connected to the audio signal output terminal of the audio storage circuit 14. One end of the relay coil of the voice / voice synthesis switching circuit 15 is connected to the power supply line, and the other end is connected to the collector of the transistor 16.

The emitter of the transistor 16 is grounded, and the base is connected to the output terminal of the inverter 18 via the resistor 17. The output terminal of the inverter 18 is connected to the output terminal of the NAND gate 19. Nand Gate 1
The output end of 9 is connected to the output end of the inverter 18 and the start signal input end of the voice storage circuit 14. One input terminal of the NAND gate 19 is connected to one input terminal of the NAND gate 20 and also connected to the output terminal of the NAND gate 21.

The NAND gate 20 has one input terminal connected to the end signal input terminal of the audio storage circuit 14 and an output terminal connected to one input terminal of the NAND gate 21. The other input end of the NAND gate 21 is connected to the other input end of the NAND gate 19 and is also connected to one end of the transmission switch 22. The transmission switch 22 has one end connected to the power supply line via the resistor 23 and the other end grounded. Nand gate 21
Is connected to the base of the transistor 25 via the resistor 24. The NAND gates 20 and 21 form a flip-flop circuit 50. Transistor 25
Has its emitter grounded and its collector connected to one end of a relay coil of the transmission / reception switching circuit 2. The other end of the relay coil of the transmission / reception switching circuit 2 is connected to the power supply line. The microphone 10 corresponds to a voice input means. Further, the high frequency power amplification section 4 and the frequency conversion section 12 constitute a transmission means 90.

In the transceiver having such a structure,
The operation will be described with reference to the time chart shown in FIG. In the receiving state, the output of the inverter 18 is "
L ", the output of the NAND gate 19 is" H ", the output of the flip-flop circuit 50 is" L ", and the end output of the audio storage circuit is" L ".
Since 6 is turned off, the common contact c of the voice / voice synthesis switching circuit 15 is closed to the fixed contact a. Since the transistor 25 is also turned off, the common contact c of the transmission / reception switching circuit 2 is closed to the fixed contact a. When the transmission switch 22 is pressed from this reception state, as shown in FIG.
_{At 1} , the output of the flip-flop 50 changes from "L" to "H". As a result, the transistor 25 is turned on, the common contact c of the transmission / reception switching circuit 2 is switched from the fixed contact a to the fixed contact b, and the transmission state is set as shown in FIG.
When the operator talks to the microphone 10 after entering the transmission state, a voice output is obtained as shown in FIG.

Now, when talking is finished at time t ₂ and the pushing of the transmission switch 22 is stopped, the output of the NAND gate 19 changes from "H" to "L". This allows the inverter 18
Is changed from "L" to "H", the transistor 16 is turned on, and the common contact c of the voice / voice synthesis switching circuit 15 is switched from the fixed contact a to the fixed contact b. When the output of the NAND gate 19 changes from "H" to "L", the voice memory circuit 14 starts operating as a start signal and outputs a voice signal. As a result, the voice signal output from the voice storage circuit 14 is converted into the transmission frequency while the transmission state is maintained, and after power amplification, the voice signal is radiated in the air through the antenna 1. Since the voice signal has the content "Please" by voice synthesis, the receiving side receiving this voice signal can obtain the voice output "Please" from the speaker. And the voice output "Please" is shown in Figure 2.
As shown in (d), at the end of time t ₃ , the voice memory circuit 14 outputs an end signal. As a result, the output terminal of the flip-flop 50 changes from "H" to "L",
The transistor 25 is turned off and the common contact c of the transmission / reception switching circuit 2 is switched from the fixed contact b to the fixed contact a. That is, the transmission state is changed to the reception state.

Example 2. In the first embodiment described above, the voice signal by voice synthesis is transmitted, but the transceiver is provided with an optical device such as a light emitting diode (LED) or a lamp (both of which correspond to the light emitting means) to turn it on. The lighting signal may be transmitted. Figure 3
FIG. 3 is a block diagram showing the configuration of such a transceiver. In this figure, 27 is a lighting signal generation circuit,
By inputting the start signal, a lighting signal in the audio frequency band (for example, 1 kHz) is generated and output. Then, immediately after outputting the lighting signal, the end signal is output.
Reference numeral 15 is a voice / lighting switching circuit, and 28 is a lighting signal detection circuit, which detects and outputs a lighting signal from the IF signal output from the frequency conversion circuit 5. An LED driver 29 turns on the LED 30 by inputting the lighting signal detected by the lighting signal detection circuit 28. Microphone 1 above
0 and the low frequency amplifier circuit 11 are audio signal output means 100.
Make up.

In the transceiver having such a structure,
When the transmission switch 22 is pressed and stopped as in the first embodiment, the transistor 16 is turned on and voice / audio
The common contact c of the lighting switching circuit 15 switches from the fixed contact a to the fixed contact b, and the output of the NAND gate 19 becomes "
The lighting signal is output from the lighting signal generation circuit 27 when the lighting signal is changed from “H” to “L.” As a result, the lighting signal is converted into the transmission frequency while the transmission state is maintained, and then the hollow signal is transmitted through the antenna 1. On the receiving side that receives this lighting signal, the LED 30 has a predetermined period (for example, 500 m).
sec) turn on.

In the above embodiment, the voice message "Please" is transmitted, but the present invention is not limited to this, and may be "delay". Also,
The language is not limited to Japanese. Also, the difference in voice message such as "Please" or "Delay" and the difference in language may be arbitrarily set. The transceiver of the above embodiment may be applied to an electronic wrist watch.

[0018]

According to the present invention, a transmission end signal is transmitted at the end of transmission to notify the other side of the end of transmission, so there is no need to say "please" at the end of transmission. Therefore, communication can be performed in a normal conversation.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment of a transceiver according to the present invention.

FIG. 2 is a time chart of the operation of the transceiver of the same embodiment.

FIG. 3 is a block diagram of a second embodiment of a transceiver according to the present invention.

FIG. 4 is a block diagram of a conventional transceiver.

[Explanation of symbols]

 10 microphone (voice input means) 11 low frequency amplifier circuit 14 voice storage circuit (voice signal storage means) 15 voice / lighting switching circuit (switching means) 16, 25 transistor 17, 23, 24 resistor 18 inverter 19, 20, 21 NAND gate 22 transmission switch 27 lighting signal generation circuit (lighting signal output means) 28 lighting signal detection circuit (lighting signal detection means) 29 LED driver (lighting drive means) 30 LED (optical means) 90 transmission means 100 voice signal output means 110 control means

Claims (4)

[Claims] 1. A voice signal storage means for storing a predetermined voice signal, a voice input means for inputting a voice from the outside, and a voice input from the voice input means converted into a voice signal and transmitted. A transceiver comprising: a transmission switch that is operated for that purpose; and a transmission unit that transmits the audio signal stored in the audio signal storage unit when the operation of the transmission switch is completed. 2. The voice signal storage means stores voice data indicating the end of transmission.
The transceiver described. 3. A sound signal output means for outputting a sound signal, a lighting signal output means for outputting a lighting signal for lighting an optical means, and a switch for switching between the sound signal output means and the lighting signal output means. And a control means for outputting a lighting signal while maintaining the transmission state when the transmission switch is switched from ON to OFF, and for controlling to switch from the transmission state to the reception state when the output of the lighting signal ends. A lighting signal detecting means for detecting the lighting signal from a received signal; and a lighting driving means for lighting the optical means when the lighting signal is detected by the lighting signal detecting means. Transceiver to do. 4. The transceiver according to claim 1, which is applied to a wristwatch.