JPH03209667A - Recording and reproducing device - Google Patents

Recording and reproducing device

Info

Publication number
JPH03209667A
JPH03209667A JP402290A JP402290A JPH03209667A JP H03209667 A JPH03209667 A JP H03209667A JP 402290 A JP402290 A JP 402290A JP 402290 A JP402290 A JP 402290A JP H03209667 A JPH03209667 A JP H03209667A
Authority
JP
Japan
Prior art keywords
signal
tape recorder
output
frequency
recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP402290A
Other languages
Japanese (ja)
Inventor
Hitoshi Iijima
仁 飯島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP402290A priority Critical patent/JPH03209667A/en
Publication of JPH03209667A publication Critical patent/JPH03209667A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To attain the simultaneous recording and reproducing of sound and digital signals by a simple tape recorder by executing the high frequency attenuation processing of the sound signal up to the upper limit of frequency required for recognition and adding a carrier signal more than the upper limit frequency to a signal modulated by the digital signal to execute recording/reproducing. CONSTITUTION:An LPF 2 executes the high frequency attenuation processing of the sound signal up to the upper limit of frequency required for recognition, an adder 3 adds a signal obtained by modulating the outputs of reference oscillators 6, 7 having frequency higher than the upper limit frequency of the voice signal by a digital signal through a modulator 5 to the output of the LPF 2 and the single tape recorder 4 simultaneously records the sound and digital signals. At the time of reproducing, the voice signal is separated from the digital signal by an LPF 12 and an HPF 14, so that the voice and digital signals can be simultaneously recorded and reproduced by the single tape recorder.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、1つの音声用チープレコーグを用いて、音
声信号及びディジタル信号を記録再生する装置に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for recording and reproducing audio signals and digital signals using one audio cheap recorder.

〔従来の技術〕[Conventional technology]

第3図は従来の、音声信号及びディジタルデータ信号を
音声用テープレコーダ記録再生する装置の構成図であゆ
2図において(20)は変調器、 (21)はディジタ
ルデータ信号によって変調された信号。
FIG. 3 is a block diagram of a conventional apparatus for recording and reproducing audio signals and digital data signals on an audio tape recorder. In FIG. 2, (20) is a modulator, and (21) is a signal modulated by the digital data signal.

(22)はディジタルデータ信号記録用のテープレコー
ダ1.(23)はテープレコーダ1からの出力信号。
(22) is a tape recorder 1 for recording digital data signals. (23) is the output signal from the tape recorder 1.

(24)は復調器、 (25)は基準発振器1.(26
)は基準発振器2.(27)は音声信号、 (28)は
音声信号記録用のテープレコーダ2.(29)はテープ
レコーダ2からの出力信号である。
(24) is the demodulator, (25) is the reference oscillator 1. (26
) is the reference oscillator 2. (27) is an audio signal, (28) is a tape recorder 2 for recording audio signals. (29) is an output signal from the tape recorder 2.

次に動作について説明する。変調器(20)に入力され
たディジタルデータ信号により基準発振器1(25)と
基準発振器2 (26)の出力を用いて変調を行う。こ
のディジタルデータ信号によって変調された信号(21
)をテープレコーダ1 (22)により記録を行う。再
生の際にはテープレコーダ1からの出力信号(23)を
復調器(24)に入力し復調し、ディジタルデータ信号
として取り出す。音声信号についてはテープレコーダ2
 (29)で記録再生を行う。
Next, the operation will be explained. Modulation is performed using the outputs of reference oscillator 1 (25) and reference oscillator 2 (26) based on the digital data signal input to the modulator (20). A signal (21
) is recorded by tape recorder 1 (22). During playback, the output signal (23) from the tape recorder 1 is input to the demodulator (24), demodulated, and extracted as a digital data signal. Tape recorder 2 for audio signals
Recording and reproduction is performed in (29).

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の音声信号及びディジクルデータ信号を音声用テー
プレコーダで記録する方法及び装置は。
A method and apparatus for recording conventional audio signals and digital data signals on an audio tape recorder.

以上のような方法で行われていたので、テープレコーダ
は2台必要とされ、音声信号とディジタルデータイ:号
の同時記録再生の際にも音声用テープレコーダの記録速
度の誤差により再生の際時間的なずれが生じていた。
Since this was done using the method described above, two tape recorders were required, and even when recording and playing back audio signals and digital data simultaneously, errors in the recording speed of the audio tape recorders caused problems during playback. There was a time lag.

この発明は、このような課題を解決するためになされた
もので、1つの音声用テープレコーダにおいて音声の記
録中に、−時的に低速度のディジタルデータ信号を記録
する必要が生じた場合、ディジクルデータ信号を音声信
号と同時に記録を行い、それを再生する際に分離し音声
信号とディジタルデータ信号を別々に取出すことを目的
とするものである。
The present invention has been made to solve the above problem, and when it becomes necessary to record a low-speed digital data signal during audio recording in an audio tape recorder, The purpose of this method is to record a digital data signal simultaneously with an audio signal, and separate the signals when reproducing them to extract the audio signal and the digital data signal separately.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係わる音声信号及びディジクル信号の同時記
録再生装置は、このような目的を達成するために、従来
から使われていた音声用チープレコーグを利用し、記録
すべき音声信号を人が音声を認識するのに必要とされる
周波数の上限までを通過させろ高域減衰機能と、その周
波数の上限からテープレコーダで記録が可能な上限周波
数の間の基準周波数信号をディジタル信号で変調する変
調機能と、上記2つの信号を加え合わせる加算機能を付
加したものである。
In order to achieve the above object, the simultaneous recording and reproducing device for audio signals and digital signals according to the present invention utilizes a conventionally used audio cheap recorder, and allows a person to recognize the audio signal to be recorded. A high-frequency attenuation function that passes up to the upper limit of the frequency required for the purpose of recording, and a modulation function that uses a digital signal to modulate a reference frequency signal between the upper limit of that frequency and the upper limit frequency that can be recorded on a tape recorder. This adds an addition function to add the above two signals.

〔作 用〕[For production]

この発明によって、音声信号を記録中に、−時的にディ
ジタルデータ信号を記録する必要が生じた場合、同しテ
ープレコーダを用いて音声信号とデイレタル信号を同時
に記録することが可能となり、さらに再生する際音声信
号とディジタル信号を別々に取り出すことができろ。
According to this invention, if it becomes necessary to record a digital data signal from time to time while recording an audio signal, it is possible to simultaneously record the audio signal and the digital signal using the same tape recorder, and to play back the audio signal. When doing so, it should be possible to extract the audio signal and digital signal separately.

〔実施例〕〔Example〕

以下、この発明の実施例を図に基づいて説明する。第1
図は、この発明に係わる音声信号及びディジタル信号の
同時記録装置及び再生装置の構成である。図において(
11は増幅器、(2)ζよ低域フィルタ、(3)は加算
回路、(4)はテープレコーダ、(5)は変調器、(6
)は基準発振器1 、 (71は基準発振器2 、 (
81は加算回路からの出力信号、(9)は低域フィルタ
からの出力信号、00)は変調器からの出力信号、 (
11)はテープレコーダからの出力、 (12)は低域
フィルタ、 (131は増幅器、 (141は高域タイ
ルタ、 (+51復調器である。
Embodiments of the present invention will be described below with reference to the drawings. 1st
The figure shows the configuration of a simultaneous recording device and a reproducing device for audio signals and digital signals according to the present invention. In the figure (
11 is an amplifier, (2) ζ is a low-pass filter, (3) is an addition circuit, (4) is a tape recorder, (5) is a modulator, (6
) is reference oscillator 1, (71 is reference oscillator 2, (
81 is the output signal from the adder circuit, (9) is the output signal from the low-pass filter, 00) is the output signal from the modulator, (
11) is the output from the tape recorder, (12) is the low pass filter, (131 is the amplifier, (141 is the high pass filter, and (+51 is the demodulator).

第2図はこの発明による音声信号及びディジタル信号の
同時記録再生装置におけろ記録再生方式の概念図である
。図において(16)は音声信号の周波tAスペクトラ
ム、 (17)は低域フィルタの遮断周波数、 (18
)は基準発振器1の発振イ=号、 (191は基準発振
器2の発振信号である。
FIG. 2 is a conceptual diagram of a recording and reproducing method in the simultaneous recording and reproducing apparatus for audio signals and digital signals according to the present invention. In the figure, (16) is the frequency tA spectrum of the audio signal, (17) is the cut-off frequency of the low-pass filter, and (18
) is the oscillation signal of the reference oscillator 1, and (191 is the oscillation signal of the reference oscillator 2).

次にこの発明による音声信号及びディジタル信号の同時
記録装置の動作について説明する。第1図において入力
された音声信号は増幅器(1)により所要のレベルまで
増幅された後低域フrルタにより高域を減衰させる。こ
の出力は第3図の音声信号の周波数スペクトラム(16
)のようになる。また変調器(5)に入力されたディジ
タル信号により基準発振器1(6)と基準発振器2(7
)の出力を用いて変調を行う。低域フィルタ(2)の出
力と変調M(5)の出力を加算回路(3)により加え合
わせたテープレコーダ(4)で記録を行う。加算回路の
出力は第2図のような周波数スペクトラムになる。
Next, the operation of the simultaneous recording device for audio signals and digital signals according to the present invention will be explained. In FIG. 1, an input audio signal is amplified to a required level by an amplifier (1), and then its high frequency is attenuated by a low frequency filter. This output is the frequency spectrum (16
)become that way. Also, the reference oscillator 1 (6) and the reference oscillator 2 (7) are controlled by the digital signal input to the modulator (5).
) is used for modulation. Recording is performed by a tape recorder (4) in which the output of the low-pass filter (2) and the output of the modulation M (5) are added together by an adder circuit (3). The output of the adder circuit becomes a frequency spectrum as shown in FIG.

次にこの発明による音声信号及びディジタル信号の同時
再生装置の動作について説明する。第1図においてテー
プレコーダ(4)の出力(11)を低域フィルタ(12
)及び高域フィルタ(14)に入れる。低域フィルタ(
12)からの出力を増幅器(13)により所要のレベル
まで増幅器し音声信号として出力する。
Next, the operation of the apparatus for simultaneously reproducing audio signals and digital signals according to the present invention will be explained. In Figure 1, the output (11) of the tape recorder (4) is filtered by a low-pass filter (12).
) and a high-pass filter (14). Low-pass filter (
The output from 12) is amplified to a required level by an amplifier (13) and output as an audio signal.

高域フィルタ(14)からの出力を復調器(15)によ
り復調しディジタル信号として出力する。
The output from the high-pass filter (14) is demodulated by a demodulator (15) and output as a digital signal.

〔発明の効果〕〔Effect of the invention〕

以上のようにこの発明は、従来からある1つの音声用テ
ープレコーダを用い、音声を記録しながら、−時的に記
録の必要の生じる時間情報等のディジタル信号を音声信
号と同時に記録し、再生の際には分離して出力すること
ができろという効果がある。
As described above, the present invention uses a single conventional audio tape recorder to simultaneously record and reproduce digital signals such as time information that need to be recorded at the same time as the audio signals while recording audio. It has the effect of being able to separate and output when.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の一実施例による音声信号及びディジ
タル信号の同時記録再生装置を示す概略の構成図、第2
図はこの発明による音声信号及びディジタル信号の同時
記録再生の概念図、第3図は従来の記録再生装置を示す
図である。 図において(1)は増幅器、(2)は低域フィルタ、(
3)は加算回路、(4)はテープレコーダ、(5)は変
調器。 (6)は基準発振器1 、 (71は基準発振W 2 
、 (81は加算回路からの出力信号、(9)は低域フ
ィルタからの出力信号、 (IIは変調器からの出力信
号、 (11)はテープレコーダからの出力、 (12
)は低域フィルタ。 (13)は増幅器、 (14)は高域フィルタ、 (1
5)は復調器、 (16)は音声信号の周波数スペクト
ラム、 (17)は低域フィルタの遮断周波数、 (1
8)は基準発振器1の発振信号、 (19)は基準発振
器2の発振信号である。 なお2図中同一行号は同一、又は相当部分を示す。
FIG. 1 is a schematic configuration diagram showing a simultaneous recording and reproducing device for audio signals and digital signals according to an embodiment of the present invention, and FIG.
The figure is a conceptual diagram of simultaneous recording and reproduction of audio signals and digital signals according to the present invention, and FIG. 3 is a diagram showing a conventional recording and reproduction apparatus. In the figure, (1) is an amplifier, (2) is a low-pass filter, (
3) is an adder circuit, (4) is a tape recorder, and (5) is a modulator. (6) is the reference oscillator 1, (71 is the reference oscillator W 2
, (81 is the output signal from the adder circuit, (9) is the output signal from the low-pass filter, (II is the output signal from the modulator, (11) is the output from the tape recorder, (12)
) is a low-pass filter. (13) is an amplifier, (14) is a high-pass filter, (1
5) is the demodulator, (16) is the frequency spectrum of the audio signal, (17) is the cut-off frequency of the low-pass filter, (1
8) is the oscillation signal of the reference oscillator 1, and (19) is the oscillation signal of the reference oscillator 2. Note that the same line numbers in the two figures indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims] 音声信号を所要の周波数で高域減衰する低域フィルタと
、その周波数より高い周波数を発生する発生周波数の異
なった1つ若しくは複数の基準発振器と、この基準発振
器の出力を1つ若しくは複数のディジタル信号で変調す
る変調器と、上記の低域フィルタの出力と変調器の出力
を加え合わせる加算器と、この加算器の出力を記録する
テープレコーダと、このテープレコーダの出力ら音声信
号のみを分離・出力する低域フィルタと、上記テープレ
コーダの出力からディジタル信号の記録されている周波
数帯を出力する高域フィルタと、この高域フィルタの出
力よりディジタル信号を出力する復調器とを具備するこ
とを特徴とした記録再生装置。
A low-pass filter that attenuates the high frequencies of an audio signal at a desired frequency, one or more reference oscillators with different generation frequencies that generate frequencies higher than that frequency, and one or more digital A modulator that modulates the signal, an adder that adds the output of the above-mentioned low-pass filter and the output of the modulator, a tape recorder that records the output of this adder, and separates only the audio signal from the output of this tape recorder.・Equipped with a low-pass filter for outputting, a high-pass filter for outputting the frequency band in which the digital signal is recorded from the output of the tape recorder, and a demodulator for outputting the digital signal from the output of the high-pass filter. A recording/playback device featuring:
JP402290A 1990-01-11 1990-01-11 Recording and reproducing device Pending JPH03209667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP402290A JPH03209667A (en) 1990-01-11 1990-01-11 Recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP402290A JPH03209667A (en) 1990-01-11 1990-01-11 Recording and reproducing device

Publications (1)

Publication Number Publication Date
JPH03209667A true JPH03209667A (en) 1991-09-12

Family

ID=11573340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP402290A Pending JPH03209667A (en) 1990-01-11 1990-01-11 Recording and reproducing device

Country Status (1)

Country Link
JP (1) JPH03209667A (en)

Similar Documents

Publication Publication Date Title
KR920003521B1 (en) Magnetic recording/reproducing device
JPS59164918U (en) Video signal and digital signal reproducing device
JPH0234238B2 (en)
JPS6123715B2 (en)
JPH03209667A (en) Recording and reproducing device
US4736355A (en) Digital audio data reproduction apparatus
US5231542A (en) Method and device for improving bass response in magnetic tape recording
JPS62143265A (en) Magnetic recording and reproducing device
JP2695167B2 (en) Recording and playback device
SU662960A1 (en) Signal recording-reproducing device
JPH0466071B2 (en)
JPS61264879A (en) Signal process circuit for video disk recorder
JPS5813964B2 (en) Saiseihouhou
JPH01298579A (en) Pulse width modulation signal reproducing circuit
JPH0212669A (en) Magnetic recording device
JPH04366448A (en) Magnetic recording and reproducing device
JPH01303603A (en) Magnetic recording and reproducing device
JPS5937794A (en) Video and sound multiplex recording device
JPS6161250A (en) Reproducing device of cue signal
JPS6123589B2 (en)
JPH0530533A (en) Fm dumping method for magnetic recording and reproducing device
JPS61214102A (en) Video tape recorder
JPS59115690A (en) Information recorder
JPH04274053A (en) Recording device and reproducing device
JPS6047266A (en) Digital signal recording and reproducing device