GB867764A - - Google Patents
Info
- Publication number
- GB867764A GB867764A GB867764DA GB867764A GB 867764 A GB867764 A GB 867764A GB 867764D A GB867764D A GB 867764DA GB 867764 A GB867764 A GB 867764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- signal
- circuits
- frequency
- ultrasonic
- 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.)
- Expired
Links
- 238000012935 Averaging Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000000881 depressing effect Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Landscapes
- Selective Calling Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB867764A true GB867764A (enrdf_load_stackoverflow) | 1900-01-01 |
Family
ID=1752817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB867764D Expired GB867764A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB867764A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2648745A1 (de) * | 1975-10-28 | 1977-05-12 | Sanyo Electric Co | Empfaengerschaltung fuer fernsteuersignale |
| GB2177527A (en) * | 1985-06-28 | 1987-01-21 | Ozen Corp | Starting device for a motor for a toy |
| GB2270583A (en) * | 1992-09-11 | 1994-03-16 | Tebbutt Russell Andrew John | Remote cut-off switch. |
| GB2282276A (en) * | 1993-09-20 | 1995-03-29 | Heidelberger Druckmasch Ag | Connecting a control circuit in a housing to a machine outside the housing |
| US8964509B2 (en) | 2011-12-21 | 2015-02-24 | Utc Fire & Security Corporation | Remote communication and control of acoustic detectors |
-
0
- GB GB867764D patent/GB867764A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2648745A1 (de) * | 1975-10-28 | 1977-05-12 | Sanyo Electric Co | Empfaengerschaltung fuer fernsteuersignale |
| GB2177527A (en) * | 1985-06-28 | 1987-01-21 | Ozen Corp | Starting device for a motor for a toy |
| GB2270583A (en) * | 1992-09-11 | 1994-03-16 | Tebbutt Russell Andrew John | Remote cut-off switch. |
| GB2282276A (en) * | 1993-09-20 | 1995-03-29 | Heidelberger Druckmasch Ag | Connecting a control circuit in a housing to a machine outside the housing |
| US5563371A (en) * | 1993-09-20 | 1996-10-08 | Heidelberger Druckmaschinen Ag | Housing for an operation-controlling electrical system |
| US8964509B2 (en) | 2011-12-21 | 2015-02-24 | Utc Fire & Security Corporation | Remote communication and control of acoustic detectors |
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