JPH01151462U - - Google Patents
Info
- Publication number
- JPH01151462U JPH01151462U JP4734988U JP4734988U JPH01151462U JP H01151462 U JPH01151462 U JP H01151462U JP 4734988 U JP4734988 U JP 4734988U JP 4734988 U JP4734988 U JP 4734988U JP H01151462 U JPH01151462 U JP H01151462U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- signal
- detection
- echo
- detection signal
- 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 6
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734988U JPH01151462U (zh) | 1988-04-08 | 1988-04-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4734988U JPH01151462U (zh) | 1988-04-08 | 1988-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01151462U true JPH01151462U (zh) | 1989-10-19 |
Family
ID=31273560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4734988U Pending JPH01151462U (zh) | 1988-04-08 | 1988-04-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01151462U (zh) |
-
1988
- 1988-04-08 JP JP4734988U patent/JPH01151462U/ja active Pending
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