JPH02123138U - - Google Patents
Info
- Publication number
- JPH02123138U JPH02123138U JP1989031563U JP3156389U JPH02123138U JP H02123138 U JPH02123138 U JP H02123138U JP 1989031563 U JP1989031563 U JP 1989031563U JP 3156389 U JP3156389 U JP 3156389U JP H02123138 U JPH02123138 U JP H02123138U
- Authority
- JP
- Japan
- Prior art keywords
- output
- frequency component
- demodulating
- component level
- mutating
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Headphones And Earphones (AREA)
- Noise Elimination (AREA)
- Optical Communication System (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989031563U JPH02123138U (cs) | 1989-03-20 | 1989-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989031563U JPH02123138U (cs) | 1989-03-20 | 1989-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02123138U true JPH02123138U (cs) | 1990-10-09 |
Family
ID=31257505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989031563U Pending JPH02123138U (cs) | 1989-03-20 | 1989-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02123138U (cs) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582596A (en) * | 1978-12-18 | 1980-06-21 | Sony Corp | Head phone unit |
| JPS5754435A (ja) * | 1980-09-19 | 1982-03-31 | Kooraru Kk | Jidosukeruchiseigyohoshiki |
-
1989
- 1989-03-20 JP JP1989031563U patent/JPH02123138U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5582596A (en) * | 1978-12-18 | 1980-06-21 | Sony Corp | Head phone unit |
| JPS5754435A (ja) * | 1980-09-19 | 1982-03-31 | Kooraru Kk | Jidosukeruchiseigyohoshiki |
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