JPH032717U - - Google Patents
Info
- Publication number
- JPH032717U JPH032717U JP6171189U JP6171189U JPH032717U JP H032717 U JPH032717 U JP H032717U JP 6171189 U JP6171189 U JP 6171189U JP 6171189 U JP6171189 U JP 6171189U JP H032717 U JPH032717 U JP H032717U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- amplifier
- amplification section
- amplifies
- transmits
- 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
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案による双方向共同聴視装置用増
幅器の一実施例の概略ブロツク図、第２図は同実
施例の主要部の詳細なブロツク図、第３図は第２
図のコントローラにおける検波レベルとしきい値
との関係を示す図、第４図は本考案による双方向
共同聴視装置用増幅器の他の実施例において使用
される上り信号を示す図、第５図は双方向強度聴
視装置のブロツク図、第６図は従来の双方向共同
聴視装置用増幅器の一例のブロツク図である。
３０……下り用分岐増幅部（下り信号用増幅部
）、３６……上り用分岐増幅部（上り信号用増幅
部）、４４……制御回路。
FIG. 1 is a schematic block diagram of an embodiment of an amplifier for a two-way communal viewing device according to the present invention, FIG. 2 is a detailed block diagram of the main parts of the same embodiment, and FIG.
FIG. 4 is a diagram showing the relationship between the detection level and the threshold value in the controller shown in FIG. 4. FIG. FIG. 6 is a block diagram of an example of a conventional amplifier for a two-way collaborative viewing system. 30...downlink branch amplification section (downlink signal amplification section), 36...uplink branch amplification section (upstream signal amplification section), 44...control circuit.
Claims (1)
て端末側に伝送する下り信号用増幅部と、上記端
末側から伝送された上り信号を増幅し上記ヘツド
エンド側に伝送する上り信号用増幅部と、上記上
り信号が上記上り信号用増幅部に供給されたのを
検出して上記上り信号用増幅部を付勢する制御部
とを、具備する双方向共同聴視装置用増幅器。 a down signal amplification section that amplifies the down signal transmitted from the head end and transmits it to the terminal side; an up signal amplification section that amplifies the up signal transmitted from the terminal side and transmits it to the head end side; An amplifier for a two-way communal viewing device, comprising: a control section that detects that a signal is supplied to the upstream signal amplifier and energizes the upstream signal amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989061711U JPH083055Y2 (en) | 1989-05-26 | 1989-05-26 | Amplifier for two-way joint hearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989061711U JPH083055Y2 (en) | 1989-05-26 | 1989-05-26 | Amplifier for two-way joint hearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH032717U true JPH032717U (en) | 1991-01-11 |
| JPH083055Y2 JPH083055Y2 (en) | 1996-01-29 |
Family
ID=31590203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989061711U Expired - Lifetime JPH083055Y2 (en) | 1989-05-26 | 1989-05-26 | Amplifier for two-way joint hearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH083055Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117824U (en) * | 1986-01-17 | 1987-07-27 |
-
1989
- 1989-05-26 JP JP1989061711U patent/JPH083055Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117824U (en) * | 1986-01-17 | 1987-07-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH083055Y2 (en) | 1996-01-29 |
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