JPH0389595U - - Google Patents
Info
- Publication number
- JPH0389595U JPH0389595U JP1989147084U JP14708489U JPH0389595U JP H0389595 U JPH0389595 U JP H0389595U JP 1989147084 U JP1989147084 U JP 1989147084U JP 14708489 U JP14708489 U JP 14708489U JP H0389595 U JPH0389595 U JP H0389595U
- Authority
- JP
- Japan
- Prior art keywords
- audio
- audio signals
- signals
- selection unit
- transmitting
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
Landscapes
- Optical Communication System (AREA)
Description
第１図は本考案の原理構成を示すブロツク図、
第２図は本考案の一実施例を示す回路図、第３図
は第２図の送受信装置の各部の信号波形を示すタ
イミングチヤート、第４図は優先順位方式により
オーデイオ信号を選択する手順を説明するための
フローチヤート、第５図は優先順位方式における
イネーブル信号と選択信号との関係を示すタイミ
ングチヤート、第６図は後勝ち方式によりオーデ
イオ信号を選択する手順を説明するためのフロー
チヤート、第７図は従来のオーデイオ装置を示す
ブロツク図である。
図において、１−１〜１−Ｎ……送信装置、２
−１〜２−Ｎ……受信装置、３……選択部、４…
…切替部、５−１〜５−Ｎ……エンベロープ抽出
部、６−１〜６−Ｎ……光フアイバ、８……アン
プ、１１−１〜１１−Ｎ……変調部、２２−１〜
２２−Ｎ……復調部。
Figure 1 is a block diagram showing the principle configuration of the present invention.
Fig. 2 is a circuit diagram showing an embodiment of the present invention, Fig. 3 is a timing chart showing signal waveforms of each part of the transmitting/receiving device shown in Fig. 2, and Fig. 4 shows the procedure for selecting audio signals using the priority system. FIG. 5 is a timing chart showing the relationship between the enable signal and the selection signal in the priority system; FIG. 6 is a flow chart for explaining the procedure for selecting an audio signal using the last-win system; FIG. 7 is a block diagram showing a conventional audio device. In the figure, 1-1 to 1-N... transmitter, 2
-1 to 2-N...Receiving device, 3...Selection unit, 4...
...Switching unit, 5-1 to 5-N...Envelope extraction unit, 6-1 to 6-N...Optical fiber, 8...Amplifier, 11-1 to 11-N...Modulation unit, 22-1 to
22-N...Demodulator.
Claims (1)
の変調部１１−１〜１１−Ｎによりそれぞれ変調
して複数の光フアイバ６−１〜６−Ｎに伝送する
複数の送信装置と、 該光フアイバ６−１〜６−Ｎからの前記オーデ
イオ信号Ｓａ１〜Ｓａｎを受信して複数の復調部
２２−１〜２２−Ｎによりそれぞれ復調する複数
の受信装置と、 前記送信装置よりそれぞれ生成され、かつ、前
記オーデイオ信号Ｓａ１〜Ｓａｎの有無を示す複
数種のイネーブル信号Ｓｅ１〜Ｓｅｎの中の１つ
を、予め定められた優先順位に基づいて選択する
選択部３と、 該選択部３による前記イネーブル信号Ｓｅ１〜
Ｓｅｎの選択結果に応じて前記復調されたオーデ
イオ信号Ｓａ１〜Ｓａｎの中の１つを指定してア
ンプ８に送出する切替部４とを有するオーデイオ
装置において、 前記送信装置は、前記イネーブル信号Ｓｅ１〜
Ｓｅｎに応じて前記変調部１１−１〜１１−Ｎの
駆動／非駆動をそれぞれ指定する複数の送信装置
１−１〜１−Ｎからなり、 前記受信装置は、前記受信したオーデイオ信号
Ｓａ１〜Ｓａｎの各々のエンベロープを抽出した
ときに前記イネーブル信号Ｓａ１〜Ｓａｎをそれ
ぞれ生成して前記選択部３に入力する複数のエン
ベロープ抽出部５−１〜５−Ｎを含む複数の受信
装置２−１〜２−Ｎからなることを特徴とするオ
ーデイオ装置。[Claims for Utility Model Registration] A plurality of types of audio signals S a 1 to S an are modulated by a plurality of modulation units 11-1 to 11-N, respectively, and transmitted to a plurality of optical fibers 6-1 to 6-N. a plurality of transmitting devices; and a plurality of receiving devices that receive the audio signals S a 1 to S an from the optical fibers 6-1 to 6-N and demodulate them respectively using a plurality of demodulation sections 22-1 to 22-N. and one of the plurality of enable signals S e 1 to S en respectively generated by the transmitting device and indicating the presence or absence of the audio signals S a 1 to S an in a predetermined priority order. a selection unit 3 that selects based on the selection unit 3; and the enable signal S e 1 to
In the audio device, the transmitting device includes a switching unit 4 that specifies one of the demodulated audio signals S a 1 to S an and sends it to the amplifier 8 according to a selection result of S en . Enable signal S e 1~
It consists of a plurality of transmitting devices 1-1 to 1-N that respectively designate driving/non-driving of the modulating sections 11-1 to 11-N according to the received audio signal Sa. A plurality of envelope extraction units 5-1 to 5-N each generate the enable signals S a 1 to S an and input them to the selection unit 3 when the envelopes of each of S a 1 to S an are extracted. An audio device comprising receiving devices 2-1 to 2-N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989147084U JPH084758Y2 (en) | 1989-12-22 | 1989-12-22 | Audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989147084U JPH084758Y2 (en) | 1989-12-22 | 1989-12-22 | Audio equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0389595U true JPH0389595U (en) | 1991-09-12 |
| JPH084758Y2 JPH084758Y2 (en) | 1996-02-07 |
Family
ID=31693617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989147084U Expired - Lifetime JPH084758Y2 (en) | 1989-12-22 | 1989-12-22 | Audio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084758Y2 (en) |
-
1989
- 1989-12-22 JP JP1989147084U patent/JPH084758Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084758Y2 (en) | 1996-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |