JPS60172443U

JPS60172443U - Audio data transmission equipment

Info

Publication number: JPS60172443U
Application number: JP6052284U
Authority: JP
Inventors: 今井　雅隆
Original assignee: オムロン株式会社
Priority date: 1984-04-23
Filing date: 1984-04-23
Publication date: 1985-11-15
Also published as: JPH0342759Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の構成図、第２図は、第１図
の音声データ伝送装置の動作説明に供するタイムチャー
トであり、第２図Ａにマイクロフォン９から入力される
音声データ、第２図Ｂは第１比較器５の出力波形、第２
図Ｃは第１タイマ　　−４の出力波形、第２図りは第３
タイマ８の出力波形、第２図Ｅは送信側の出力波形、第
２図Ｆは第３・比較器１７の出力波形、第２図Ｇは記録
手段１２への入力波形をそれぞれ示している。１・・・送信側、２・・・受信側、３・・・発振器（ス
タート信号形成手段）、４，１３・・・第１、第２タイ
マ、６，７．１５・・・第１．２．３アナログスイツチ
（切り換え手段）、１４・・・スタート信号形成手段、
１２・・・記録手段。FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a time chart for explaining the operation of the audio data transmission device shown in FIG. 1, and FIG. , FIG. 2B shows the output waveform of the first comparator 5, the second
Figure C is the output waveform of the first timer -4, and the second diagram is the output waveform of the third timer.
2E shows the output waveform of the timer 8, FIG. 2E shows the output waveform of the transmitting side, FIG. 2F shows the output waveform of the third comparator 17, and FIG. 2G shows the input waveform to the recording means 12. DESCRIPTION OF SYMBOLS 1... Transmission side, 2... Receiving side, 3... Oscillator (start signal forming means), 4, 13... First and second timers, 6, 7. 15... First... 2.3 analog switch (switching means), 14... start signal forming means,
12...Recording means.

Claims

[Scope of utility model registration request]

(1) A transmitting side that transmits audio data, and a receiving side that receives audio data from the transmitting side, and the transmitting side includes a start signal forming means for forming a start signal, and a predetermined time period. A first timer for measuring compares a preset level corresponding to the audio data with the level of the input signal, and when the level is equal to or higher than the preset level, the start signal forming means determines that the input signal is audio data. and a comparator that provides a drive signal to the first timer; when the input of audio data is started, the audio data is applied to the comparator and the start signal is transmitted; and when the predetermined time has elapsed, the start signal is transmitted to the first timer; a switching means for transmitting audio data based on the output of one timer, and the receiving side includes a recording means for recording the received signal, a second timer for measuring a predetermined time, and a switching means for transmitting the audio data based on the output of the transmitting side. a start signal detecting means for detecting a start signal and supplying a drive signal to the second timer; and a start signal detecting means for supplying a reception signal to the start signal detecting means when the signal is received, and outputting the second timer when a predetermined time has elapsed. and switching means for providing a received signal to the recording means based on the above.

(2) The audio data transmission device according to claim 1, wherein the start signal has a high frequency included in the audio band and is a high level signal.

(3) The audio data transmission device according to claim 1 or 2, wherein the predetermined time is equal to the predetermined time.

(4) The start signal detection means includes a filter circuit that passes only signals in a band corresponding to the start signal, and a comparison that compares the level of the input signal with a level set corresponding to the start signal. An audio data transmission device according to claim 1, 2 or 3, characterized in that it includes a device.